阅读说明：本技术 光照射装置、光照射方法 (Light irradiation device, light illuminating method ) 是由 信田和彦 于 2018-06-12 设计创作，主要内容包括：本发明提供一种通过简单的结构实现以高效率对线材照射光的光照射装置以及光照射方法。光照射装置具备：插入路,用于插入线材；第一反射镜,具有以从所述插入路的中心偏心第一距离的位置为中心的圆弧状,将朝向所述插入路的一侧的面作为反射面；第二反射镜,与所述第一反射镜的开口缘相邻地配置,具有以从所述插入路的中心偏心了与所述第一距离不同的第二距离的位置为中心的圆弧状,将朝向所述插入路的一侧的面作为反射面；以及光源,相对于所述插入路配置在与所述第一反射镜相反的一侧的位置,且朝向所述线材照射光。(The present invention provides a kind of light irradiation device and light illuminating method realized by simple structure with high efficiency to wire rod irradiation light.Light irradiation device has: insertion road, for being inserted into wire rod；First reflecting mirror, have by from it is described insertion road center bias first distance position centered on arc-shaped, using towards it is described insertion road side face as reflecting surface；Second reflecting mirror, it is adjacent to configuration with the opening edge of first reflecting mirror, with the arc-shaped centered on the eccentric position of the second distance different from the first distance in the center from the insertion road, using towards the face of the side on the insertion road as reflecting surface；And light source, it configures relative to the insertion road in the position of the side opposite with first reflecting mirror, and towards the wire rod irradiation light.)

1. a kind of light irradiation device, which is characterized in that have:

It is inserted into road, for being inserted into wire rod；

First reflecting mirror has the arc-shaped centered on the position from the center bias first distance on the insertion road, by court To it is described insertion road side face as reflecting surface；

Second reflecting mirror is adjacent to configuration with the opening edge of first reflecting mirror, has with inclined from the center on the insertion road Arc-shaped centered on the heart position of the second distance different from the first distance, will be towards the side on the insertion road Face is as reflecting surface；And

Light source is configured relative to the insertion road in the position of the side opposite with first reflecting mirror, and towards the line Material irradiation light.

2. light irradiation device according to claim 1, which is characterized in that

The light source is made of multiple LED elements.

3. light irradiation device according to claim 1 or 2, which is characterized in that

The center of arc-shaped of the center on the insertion road relative to first reflecting mirror and the circle of second reflecting mirror The center of arcuation is eccentric to the direction for leaving the light source.

4. light irradiation device described in any one of claim 1 to 3, which is characterized in that

Having insertion section, by from the light of the light source radiation there is the material of permeability to constitute, forming the insertion in inside Road,

The periphery of the insertion section is located at relative to the reflecting surface of first reflecting mirror close to first reflecting mirror The side at the center of arc-shaped,

And it is located at the center of the arc-shaped close to second reflecting mirror relative to the reflecting surface of second reflecting mirror Side.

5. light irradiation device according to any one of claims 1 to 4, which is characterized in that

The reflecting surface of the reflecting surface of first reflecting mirror and second reflecting mirror is formed of curved surface.

6. light irradiation device according to any one of claims 1 to 4, which is characterized in that

The reflecting surface of the reflecting surface of first reflecting mirror and second reflecting mirror is by matching multiple planes It is set to arc-shaped and is formed.

7. a kind of light illuminating method is method of the light irradiation device to wire rod irradiation light,

The light irradiation device has:

First reflecting mirror, using with arc-shaped and towards the face of inside as reflecting surface；

Second reflecting mirror, the adjacent configuration of opening edge with first reflecting mirror, will make with arc-shaped and towards the face of inside For reflecting surface；And

Light source, Xiang Suoshu wire rod irradiation light,

The light illuminating method comprises the following steps:

So that the center of the wire rod from the center bias first distance of the reflecting surface of first reflecting mirror and Keep the center of the wire rod different from the first distance from the center bias of the reflecting surface of second reflecting mirror Second distance mode, the reflection of the inside of the reflecting surface of the first reflecting mirror of Xiang Suoshu and second reflecting mirror The wire rod is inserted into the region of the inside in face；And

From the configuration of the wire rod relatively the position of the side opposite with first reflecting mirror the light source to the wire rod Irradiation light.

Technical field

The present invention relates to the light irradiation devices and light illuminating method to wire rod irradiation light.

Background technique

Optical fiber be by from preform wire drawing go out bare fibre or once the optical fiber wire rod on spool, table It is resin-coated and manufacture on face.At this point, after the periphery with ultraviolet curable resin clad optical fiber (wire rod), by this The process that resin irradiating ultraviolet light makes resin solidification to execute.More specifically, from light source to the line mobile with defined speed Material irradiating ultraviolet light.

In the past, as the light source, using mercury vapor lamp, but along with the technological innovation of solid light source element in recent years, just Mercury vapor lamp is replaced in research and utilization LED element.It is 0.1mm~1.0mm left but since the diameter of wire rod is generally very thin The right side, therefore, it is difficult to effectively irradiate the light radiated from LED element.In addition, as make ultraviolet curable resin and to wire rod A kind of method of light quantity needed for irradiation, it is contemplated that the movement speed of wire rod is reduced, if but using such method, light Fine manufacture efficiency reduces, therefore not preferably.

From such a viewpoint, it in following patent documents 1, discloses such as flowering structure, throughout the circumferential high of wire rod Light source is configured in a manner of surrounding wire rod for the purpose of effect ground irradiation light.

Conventional art document

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2010-117531 bulletin

Summary of the invention

Subject to be solved by the invention

In the structure of patent document 1, need to configure light source in a manner of surrounding wire rod, therefore there are apparatus structure complexity The project of change.The purpose of the present invention is to provide it is a kind of being capable of illumination under easy structure with high efficiency to wire rod irradiation light Injection device and light illuminating method.

Means for solving the problems

Light irradiation device according to the present invention has:

It is inserted into road, for being inserted into wire rod；

First reflecting mirror has the arc-shaped centered on the position from the center bias first distance on the insertion road, Using towards it is described insertion road side face as reflecting surface；

Second reflecting mirror is adjacent to configuration with the opening edge of first reflecting mirror, has from the insertion road Arc-shaped centered on the eccentric position of the second distance different from the first distance of the heart, will towards the one of the insertion road The face of side is as reflecting surface；And

Light source is configured at the position of the side opposite with first reflecting mirror relative to the insertion road, and towards institute State wire rod irradiation light.

The further investigation of people according to the present invention, it is thus identified that following content, configured with the center relative to insertion road In the case where the reflecting mirror of arc-shaped centered on (i.e. the center of wire rod) eccentric position, with make the center of reflecting mirror with The center unanimous circumstances of wire rod are compared, and are increased the light quantity of wire rod irradiation.Moreover, the further investigation of people according to the present invention, really It accepts compared with light irradiation device has the case where single reflecting mirror, is having the eccentric distance difference for making the center away from wire rod Multiple reflecting mirrors in the case where, to wire rod irradiation light quantity further increase.The verification result is in " specific embodiment " It is aftermentioned in.

In the light irradiation device, the light source can be made of multiple LED elements.

In the light irradiation device, the center on the insertion road can be relative to the arc-shaped of first reflecting mirror The center of the arc-shaped of center and second reflecting mirror is eccentric to the direction for leaving the light source.

The light irradiation device has shape in inside by from the light of the light source radiation there is the material of permeability to constitute At it is described insertion road insertion section,

The periphery of the insertion section is located at relative to the reflecting surface of first reflecting mirror close to first reflection The side at the center of the arc-shaped of mirror, and be located at close to described second instead relative to the reflecting surface of second reflecting mirror Penetrate the side at the center of the arc-shaped of mirror.

In the light irradiation device, the reflecting surface of first reflecting mirror and second reflecting mirror it is described Reflecting surface can be formed of curved surface, can also be by forming multiple planar configurations at arc-shaped.In turn, it is also possible to institute The reflecting surface stated in the reflecting surface of the first reflecting mirror and the reflecting surface of second reflecting mirror is formed of curved surface, another Reflecting surface is formed and by multiple planar configurations at arc-shaped.

Moreover, it relates to light illuminating method of the light irradiation device to wire rod irradiation light,

The light irradiation device has:

First reflecting mirror, using with arc-shaped and towards the face of inside as reflecting surface；

Second reflecting mirror, and the opening edge of first reflecting mirror is adjacent configures, will be with arc-shaped and towards inside Face is as reflecting surface；And

Light source, Xiang Suoshu wire rod irradiation light,

The light illuminating method comprises the following steps:

So that the center of the wire rod from the center bias first distance of the reflecting surface of first reflecting mirror, And make center bias and the first distance of the center of the wire rod from the reflecting surface of second reflecting mirror The mode of different second distances, the inside of the reflecting surface of the first reflecting mirror of Xiang Suoshu and second reflecting mirror it is described The wire rod is inserted into the region of the inside of reflecting surface；And

From the configuration of the wire rod relatively the position of the side opposite with first reflecting mirror the light source to described Wire rod irradiation light.

The effect of invention

Light irradiation device according to the present invention, can under easy structure with high efficiency to wire rod irradiation light.

Detailed description of the invention

Fig. 1 is the figure for schematically showing the structure of the fiber fabrication apparatus comprising light irradiation device.

Fig. 2 is the whole main view for showing schematically the structure of light irradiation device.

Fig. 3 is the whole side view for schematically showing the structure of light irradiation device.

Fig. 4 is the A1-A1 line cross-sectional view in Fig. 2.

Fig. 5 is the enlarged drawing in the region A2 in Fig. 4.

Fig. 6 is the figure for the light irradiation device that corresponding diagram 5 carrys out drawing reference example.

Fig. 7 A is the figure for illustrating the state in the light irradiation device of comparative example to fiber-optic illuminated light.

Fig. 7 B is the figure for illustrating the state in the light irradiation device of reference example to fiber-optic illuminated light.

Fig. 8 is the figure for schematically showing the inverse ray tracing figure in the light irradiation device of reference example.

Fig. 9 is the figure for schematically showing the inverse ray tracing figure in the light irradiation device of embodiment.

Figure 10 is the eccentricity and the chart of the relationship for the light quantity for being irradiated to optical fiber for indicating the second reflecting mirror.

Figure 11 is the figure of the inverse ray tracing figure in the light irradiation device for the other structures for schematically showing embodiment.

Specific embodiment

It is illustrated referring to embodiment of the attached drawing to light irradiation device of the invention.In addition, in each figure below, it is attached The size ratio of figure and actual size ratio are not necessarily consistent.

[structure]

Fig. 1 is the figure for schematically showing the structure of the fiber fabrication apparatus comprising light irradiation device.As shown in Figure 1, light Irradiation unit 1 is used as manufacturing a part of the fiber fabrication apparatus 100 of optical fiber.Hereinafter, in the structure for illustrating light irradiation device 1 Before, fiber fabrication apparatus 100 is illustrated.

Fiber fabrication apparatus 100 has the conveying device 110 of delivery optical fiber 200 and applies purple to transported optical fiber 200 The applying device 120 of outside line curable resin.Optical fiber 200 is for example made up of the bare fibre being made of glass fibre, and is passed through Applying device 120 applies uv curing resin in the periphery of bare fibre as a result,.Conveying device 110 is in light irradiation device 1 Upstream side and downstream side have respectively keep optical fiber 200 and by optical fiber 200 in Fig. 1 the direction D1 conveying transfer unit 111,112, optical fiber 200 is inserted into the specified position of the inside of light irradiation device 1.Optical fiber 200 corresponds to " wire rod ".

, it is specified that mutually orthogonal D1, D2, D3 this 3 axis in Fig. 1.Hereinafter, in direction, sometimes using the D1, The symbol of D2, D3.

Light irradiation device 1 for example irradiates ultraviolet light to the optical fiber 200 conveyed with 1000 meters of speed per minute to the direction D1. The resin solidification of periphery coated in optical fiber 200 as a result,.As a result, having passed through the optical fiber 200 of light irradiation device 1 becomes naked The structure for being covered over film made of uv curing resin solidifies of optical fiber.

Then, it is illustrated referring to structure of Fig. 2~Fig. 5 to light irradiation device 1.Fig. 2 is to schematically show light irradiation The whole main view of the structure of device 1.Fig. 3 is the whole side view for schematically showing the structure of light irradiation device 1.Fig. 4 is A1-A1 line cross-sectional view in Fig. 2.Fig. 5 is the enlarged drawing in the region A2 in Fig. 4.

As shown in Figure 2 to 4, light irradiation device 1 has towards the light source unit 2 of 200 irradiation light of optical fiber and for optical fiber 200 The insertion unit 3 of insertion.Light irradiation device 1 has light source unit 2 and insertion unit 3 through the rotatable side of rotary shaft 4a The interconnecting piece 4 of formula connection.

Light source unit 2 has the light source 21 towards 200 irradiation light of optical fiber, carries out cooling light source cooling end to light source 21 22 and storage light source 21 etc. framework 23.Light source unit 2 has the power feeding section 24 for supplying electric power to light source 21.

Light source 21 is formed as strip along the conveying direction D1 of optical fiber 200, is configured in the mode opposite with optical fiber 200. In the present embodiment, light source 21 is made of the substrate for being equipped with multiple LED elements.As an example, in order to make ultraviolet curing Property resin solidification, from 21 emitting ultraviolet light of light source (for example, wavelength be 300nm~400nm light).

Light source cooling end 22 and light source 21 link, and have the cooling for refrigerant (such as cooling water) in internal circulation Main body 22a, the inflow part 22b of main body 22a is cooled down and for making refrigerant from cooling main body 22a for flowing into refrigerant The outflow portion 22c of outflow.Cooling main body 22a is configured at the inside of framework 23, and inflow part 22b and outflow portion 22c are configured at framework 23 outside.

Framework 23 has the transmittance section 23a for penetrating the light radiated from light source 21 and carries out the light shielding part 23b of shading to light. Transmittance section 23a is formed as strip along the conveying direction D1 of optical fiber 200, is configured in the mode opposite with light source 21.That is, light transmission Portion 23a is configured between light source 21 and optical fiber 200.

In order to supply from external electric power, electrical power source connection 24a of the power feeding section 24 such as having connecting cable And the terminal board 24b in order to which various terminals will be electrically connected and had between electrical power source connection 24a and light source 21.Electrical power source connection 24a configuration is configured in the outside of framework 23, terminal board 24b in the inside of framework 23.

Fixed part 7 has a pair of of clamping part (71,72) of clamping insertion section 6.Fixed part 7 pass through a pair of of clamping part (71, 72) end for clamping the length direction (direction D1) of insertion section 6, by the length of the end of the length direction of insertion section 6 and main part 5 The end in degree direction is fixed.

Insertion unit 3, which has, to be inserted into internal main part 5 for optical fiber 200, is used to for being inserted into optical fiber 200 in internal formation The fixation of main part 5 is fixed on to the insertion section 6 on the insertion road 61 (referring to Fig. 5) of the inside of main part 5 and by insertion section 6 Portion 7.Insertion unit 3, which has, carries out cooling main body cooling end 8 to main part 5.

Main body cooling end 8 and main part 5 link, and have the cooling for refrigerant (such as cooling water) in internal circulation Main body 8a, the inflow part 8b of main body 8a is cooled down and for making cooling water from cooling main body 8a outflow for flowing into cooling water Outflow portion 8c.Main body cooling end 8 (cooling main body 8a) is configured to load and unload relative to main part 5.

As shown in Figure 4 and 5, main part 5 is formed as strip along the conveying direction D1 of optical fiber 200, and have along Optical fiber 200 is inserted into internal concavity 50 by length direction.As shown in figure 5, the medial surface of concavity 50 has: having reflection The first reflecting mirror 51 of face 51b；With the second reflecting mirror 52 with reflecting surface 52b.Second reflecting mirror 52 and the first reflecting mirror 51 Opening edge 51c be configured adjacently.Concavity 50 has opening portion 53 in the circumferential side of the first reflecting mirror 51.

First reflecting mirror 51 and the second reflecting mirror 52 are formed as strip along the conveying direction D1 of optical fiber 200.First is anti- The reflecting surface 52b of the reflecting surface 51b and the second reflecting mirror 52 that penetrate mirror 51 are formed of curved surface.Specifically, two reflectings surface (51b, 52b) in the section formed by the vertical plane (D2-D3 plane) relative to length direction, be formed as by round a part The arc-shaped of composition.

In addition, the region of the reflecting surface 52b of the reflecting surface 51b of the first reflecting mirror 51 and the second reflecting mirror 52 connection can be by Reflecting surface is constituted, and can also be made of non-reflecting surface.

Opening portion 53 is formed as strip along the conveying direction D1 of optical fiber 200.In addition, opening portion 53 is by transmittance section 23a Covering, and configured in the mode opposite with light source 21.

Insertion section 6 is made of the cylindrical body for forming insertion road 61 in inside, by having light transmission to the light radiated from light source 21 Property component constitute.As shown in figure 5, being inserted into road 61 in the conveying direction D1 observation along optical fiber 200, i.e., in D2-D3 plane Upper presentation round.The light radiated from light source 21 be irradiated to via transmittance section 23a, opening portion 53 and insertion section 6 be inserted through it is slotting The outer peripheral surface of optical fiber 200 in approach 61.In addition, reflecting surface 51b or second reflecting mirror of a part of light in the first reflecting mirror 51 After 52 reflecting surface 52b reflection is one or many, it is irradiated to the outer peripheral surface for the optical fiber 200 being inserted into insertion road 61.

As an example, insertion section 6 is made of quartz ampoule, is filled with nitrogen inside it.Due in the outer surface of optical fiber 200 Volatile matter is generated when resin solidification, therefore by above structure, the volatile matter can be prevented to be attached to 2 (transmittance section of light source unit 23a) and on reflecting surface (51b, 52b).

As shown in figure 5, the first reflecting mirror 51 is to indicate that the center 51a of the reflecting surface 51b of arc-shaped is located at from insertion road 61 The mode of the eccentric position of first distance d1 center 61a configure.In addition, the second reflecting mirror 52 is to indicate the reflection of arc-shaped The center 52a of face 52b, which is located at from the mode of the position of the center 61a bias for being inserted into road 61 second distance d2, to be configured.This second Distance d2 is at a distance from different with first distance d1.In the present embodiment, with the center of the reflecting surface 52b of the second reflecting mirror 52 Center 51a of the 52a than the reflecting surface 51b of the first reflecting mirror 51 is more from situation, the i.e. d2 for the center 61a bias for being inserted into road 61 The case where > d1, is illustrated.

In this way, the center 51a of the reflecting surface 51b by making the first reflecting mirror 51 and reflecting surface 52b of the second reflecting mirror 52 Center 52a both sides from insertion road 61 center 61a it is eccentric, and keep the eccentric distance of both sides different, can be improved to optical fiber 200 illumination efficiency.

[effect]

Present inventor has performed further investigations, as a result confirmed the reflection of the arc-shaped by making optical fiber 200 from reflecting mirror The center in face is eccentric, to improve the illumination efficiency to optical fiber 200.Moreover, the further investigation of the present inventor further progress, as a result It confirms, as illustrated in the above-described embodiment, by making the multistage segment structure of reflecting mirror, and makes the anti-of each reflecting mirror The center for penetrating face is eccentric from optical fiber 200, thus further increases the illumination efficiency to optical fiber 200.

Firstly, improving below to by making optical fiber 200 from the center bias of the reflecting surface of the arc-shaped of reflecting mirror to light The case where illumination efficiency of fibre 200, is illustrated.

Fig. 6 is the figure of the structure of the light irradiation device for the reference example copying Fig. 5 and illustrating.The light irradiation device has single 300 this point of reflecting mirror it is different from present embodiment.The reflecting surface 300b of the reflecting mirror 300 is configured to arc-shaped, center Center 61a eccentric distance d300 of the 300a from insertion road 61.

Fig. 7 A is the figure for illustrating the irradiating state in the light irradiation device of comparative example to 200 irradiation light of optical fiber.Fig. 7 B is Illustrate in the light irradiation device of reference example to the figure of the irradiating state of 200 irradiation light of optical fiber.Comparative example is different from reference example, makes The center 300a of the reflecting surface 300b of the arc-shaped of reflecting mirror 300 and the center 200a of optical fiber 200 are consistent.

In fig. 7, the center 300a mono- of the reflecting surface 300b of the arc-shaped of the center 200a and reflecting mirror 300 of optical fiber 200 It causes.In this case, it for the back side of irradiation optical fiber 200 (opposite side in the face of the side opposite with light source 21), needs By the center 300a of reflecting surface 300b nearby later by reflecting surface 300b reflection (referring to the dotted line of Fig. 7 A).

But the face side of the light irradiation optical fiber 200 near the center 300a for passing through reflecting surface 300b is (opposite with light source 21 Side) (referring to Fig. 7 A double dot dash line).Therefore, the back side of optical fiber 200 is compared with the face side of optical fiber 200, it is difficult to shine Penetrate light.

In addition, using the reflecting surface 300b of arc-shaped, not to the reflecting surface 300b's for being configured at arc-shaped Side (left side side and right side side in Fig. 7 A) irradiation light of the optical fiber 200 of center 300a.This is because towards arc-shaped The light of the center 300a of reflecting surface 300b only becomes the light from the circumferential side for being configured at optical fiber 200 in geometric optics The direct light in source 21 and the reflected light of the light relative to reflecting surface vertical incidence, thus towards the direct light of center 300a and The range of reflected light is defined to face side and back side.Light is difficult to be irradiated to the side of optical fiber 200 as a result,.

In contrast, in the reference example of Fig. 7 B, the arc-shaped of the center 200a of optical fiber 200 relative to reflecting mirror 300 The center 300a of reflecting surface 300b is eccentric.In this case, for the back side of irradiation optical fiber 200, light does not need to pass through optical fiber 200 position.As a result, in the back side of optical fiber 200, the irradiation light in the same manner as the face side of optical fiber 200.Also, also to optical fiber 200 side suitably irradiation light.

As a result, according to the reference example of Fig. 7 B, compared with the comparative example of Fig. 7 A, the light irradiation radiated from light source 21 can be improved To the efficiency of the periphery of optical fiber 200.

Then, illustrate that (first is anti-by making light irradiation device 1 have the reflecting mirror in two stages as in the present embodiment Penetrate mirror 51 and the second reflecting mirror 52) structure, to illumination efficiency can be further increased compared with reference example the case where.

Fig. 8 is the figure for schematically showing the inverse ray tracing figure of light irradiation device for the reference example for having reflecting mirror 300. The attached drawing and light irradiation device 1 configure virtual point source in the position of the center 200a of optical fiber 200 on the contrary, schematically illustrating In the case where from the point light source radiate light ray tracing result.By reversely tracing the attached drawing, it may be determined that can be to optical fiber The light of the position irradiation light of 200 center 200a.In addition, in fig. 8, illustrating only and being radiated from imaginary point light source and by anti- Penetrate the light that light source 21 is reached after mirror 300 reflects.In addition, corresponding in Fig. 8, reference example 2 makes reflecting mirror 300 compared with reference example 1 The center 300a situation also eccentric relative to the center of optical fiber 200.

According to the attached drawing of reference example 1 it is found that from the light that the point light source of the position at the center for being configured at optical fiber 200 projects , the light L1 in the region for being located at transverse direction in the region B1 for being incident on reflecting mirror 300, i.e. relative to light source 21 outward than light source 21 It advances.This means that being radiated from light source 21 and the light that is incident in the region B1 of reflecting mirror 300 is advanced not towards optical fiber 200.

In the case where light source 21 is made of LED element, the light radiated from light source 21 has the big angle of divergence and diverging, because This is also incident in the region B1 of reflecting mirror 300.But as described above, the light not towards optical fiber 200, in the anti-of reflecting mirror 300 Penetrate face reflection it is one or many after, return 21 side of light source.I.e., it is known that the light cannot effectively serve as the light irradiated to optical fiber 200.

In contrast, according to the attached drawing for the reference example 2 for increasing eccentricity, it is known that from the center for being configured at optical fiber 200 The light of the region B1 of reflecting mirror 300 in attached drawing in the light that the point light source of position projects, being incident on reference example 1 also Xiang Guangyuan 21 advance.

However, in reference example 1, the angle of divergence radiated from the region 21a near the center of light source 21 compares according to Fig. 8 The ratio that small light is advanced after being reflected by reflecting mirror 300 relative to optical fiber 200 is high.In contrast, in reference example 2, really The smaller light of the angle of divergence of the region 21a radiation near the center of light source 21 of accepting is difficult to advance relative to optical fiber 200.Separately On the one hand, in reference example 2, from light source 21 radiate and into the light of the region B1 incidence of reflecting mirror 300, relative to optical fiber The ratio of 200 light advanced rises than reference example 1.

According to the analysis as a result, it is possible to export result below.In the structure of reference example 1, for being radiated from light source 21 And the incident light into the region B1 of reflecting mirror 300, the irradiation to optical fiber 200 can not be efficiently used for.In contrast, reference example The case where 2 structure, gives off from light source 21, about the light in the region B1 for being incident on reflecting mirror 300, compared with reference example 1, Efficiently optical fiber 200 can be irradiated, on the other hand, for the hair radiated from the region 21a near the center of light source 21 The irradiation to optical fiber 200 can not be efficiently used for compared with reference example 1 by dissipating the smaller light in angle.

Also, as can be seen from FIG. 8, in the light of the region 21b radiation near the end from light source 21, in 1 He of reference example In reference example 2, the angle of divergence that can reach optical fiber 200 is different.That is, in the structure of reference example 1, even if with some angle of divergence θ 1 The light of traveling reaches optical fiber 200 after the reflection of reflecting mirror 300, in the structure of reference example 2, it is also possible to generate from light source 21 The light that region 21b near end is advanced with above-mentioned angle of divergence θ 1 does not reach the feelings of optical fiber 200 after being reflected by reflecting mirror 300 Condition.It is also the same that it is reverse.

Fig. 9 is the figure for schematically showing the inverse ray tracing figure of light irradiation device 1 of present embodiment (embodiment), with Fig. 8 is same, illustrates only the light reflected by reflecting mirror (51,52).As described above, the light irradiation device 1 of present embodiment has Different two reflecting mirrors (51,52) of center eccentricity relative to optical fiber 200.As a result, the center relative to optical fiber 200 is inclined Lesser first reflecting mirror 51 of heart amount is efficient by the smaller light of the angle of divergence radiated from the region 21a near the center of light source 21 It guides to rate to optical fiber 200, biggish second reflecting mirror 52 of the center eccentricity relative to optical fiber 200 can will be from light source 21 The light of region 21b radiation near end and the angle of divergence radiated from the region 21a near the center of light source 21 are bigger Light is expeditiously guided to optical fiber 200.

That is, light irradiation device 1 according to the present embodiment, can utilize different two reflecting mirrors (51,52) will be from light Can be guided by reference to the reflecting mirror 300 of example 1 to the light of optical fiber 200 and can be by reference in the light that source 21 is radiated The guidance of reflecting mirror 300 of example 2 is guided with high proportion to optical fiber 200 to both the light of optical fiber 200.As a result, according to this implementation The light irradiation device 1 of mode efficiently can guide light to optical fiber 200 compared with the light irradiation device of reference example.Actual In analog result, compared with reference example 1 and reference example 2, it confirmed that the light quantity irradiated to optical fiber 200 improves in embodiment.

Figure 10 is indicated in the light irradiation device 1 of present embodiment, the position and first at the center of fixed optical fiber 200 The position of the center 51a of the reflecting surface 51b of reflecting mirror 51 becomes the position of the center 52a of the reflecting surface 52b of the second reflecting mirror 52 The chart of the variation of light quantity when dynamic, being irradiated to optical fiber 200.In Figure 10, horizontal axis refers to the reflecting surface of the second reflecting mirror 52 Eccentricity of the center 52a of 52b relative to the position of the center 51a of the reflecting surface 51b of the first reflecting mirror 51.In addition, in Figure 10 In, the longitudinal axis indicates the relative value of irradiate light quantity, is so that the position of the center 52a of the reflecting surface 52b of the second reflecting mirror 52 and the Value (ratio) when irradiate light quantity in the case where the position consistency of the center 51a of the reflecting surface 51b of one reflecting mirror 51 is benchmark.

In addition, eccentricity means for the case where negative (-) to eccentric, the eccentricity close to the direction of light source 21 in Figure 10 The case where being positive (+) means eccentric to the direction far from light source 21.In addition, eccentricity means the second reflection the case where being 0 The position consistency of the center 51a of the reflecting surface 51b of the position of the center 52a of the reflecting surface 52b of mirror 52 and the first reflecting mirror 51, this It is corresponding with the light irradiation device of reference example (reference example 1 or reference example 2).

It confirmed in Figure 10, in the region that is negative of eccentricity of the center 52a of the second reflecting mirror 52, with reference example Light irradiation device is compared, and is improved to the irradiate light quantity of optical fiber 200.The result is along above-mentioned analysis content.On the other hand, according to The result of Figure 10, it is thus identified that even if in the case where the eccentricity of the center 52a of the second reflecting mirror 52 to be set as just, with reference example Light irradiation device compare, the irradiate light quantity of optical fiber 200 is also improved.About its reason, the present inventor is presumed as follows.

Figure 11 is to schematically show the position of the center 52a for making the second reflecting mirror 52 to the center than the first reflecting mirror 51 The position of 51a further from light source 21 direction bias when light irradiation device 1 in inverse ray tracing figure figure.In Figure 11, Also same as Fig. 8, illustrate only the light reflected by reflecting mirror (51,52).

Referring to Fig. 8, as described above, as reference example 1, reflecting mirror 300 center 300a close to the center of optical fiber 200 Position in the case where, from light source 21 radiate light in, the light for being incident on the region B1 of the side of reflecting mirror 300 can not be effectively It utilizes.But as shown in figure 11, in the case where setting eccentricity different two groups of reflecting mirrors (51,52), by the first reflection After the reflection of both mirror 51 and the second reflecting mirror 52, form the optical path advanced to optical fiber 200 (referring to light L2).That is, having In the case where eccentricity the second reflecting mirror 52 smaller than the first reflecting mirror 51, then can will be not present the second reflecting mirror 52 the case where Under by a part of light to optical fiber 200 can not be guided to pass through the second reflecting mirror 52 guidance to optical fiber after the reflection of the first reflecting mirror 51 200.As a result, as shown in Figure 10, even if in the case where the eccentricity of the center 52a of the second reflecting mirror 52 to be set as just, It is considered that improving the irradiate light quantity to optical fiber 200 compared with the light irradiation device of reference example.

In addition, from the viewpoint of improving said effect, the center 51a of the reflecting surface 51b of the first reflecting mirror 51 and insertion The center 52a of the reflecting surface 52b of first distance d1 and the second reflecting mirror 52 between the center 61a on road 61 and insertion road 61 Center 61a between second distance d2 be both preferably the radius of optical fiber 200 or more, more preferably more than the diameter of optical fiber 200. In this case, it can make the center 51a's of the reflecting surface 51b of the first reflecting mirror 51 and reflecting surface 52b of the second reflecting mirror 52 Center 52a is respectively positioned on the position than optical fiber 200 in the outer part.

[other embodiments]

Hereinafter, being illustrated to other embodiments.

1 > of < above-mentioned light irradiation device 1 is configured to have the different two groups of reflections in center of the reflecting surface of arc-shaped Mirror (51,52).But light irradiation device 1 be also configured to have the center different 3 groups of the reflecting surface of arc-shaped with On reflecting mirror.In this case, for the same reason, it compared with the light irradiation device of reference example, can be improved to optical fiber 200 irradiate light quantity.

<2>first reflecting mirrors 51 and the second reflecting mirror 52 are the component that reflecting surface is in arc-shaped.Here purport is, Arc-shaped refer to along optical fiber 200 conveying direction D1 observation when, connection periphery on a little and center straight line (by Positive round a part constitute circular arc in the case where, be equivalent to the straight line of radius) have it is multiple in the case where, include longest straight line Length relative to the ratio of the length of shortest straight line be 1 times or more and 1.15 times or less, include that can be considered substantial several The case where in the range of circular arc in what meaning.In addition, the reflecting surface of the first reflecting mirror 51 and the second reflecting mirror 52 To be made of curved surface, at least one reflecting surface can also substantially constitute curved surface by combining multiple planes.

What the radius and the second reflecting mirror 52 of the reflecting surface 51b for the expression arc-shaped that 3 the first reflecting mirror of > 51 of < has had Indicate that the radius of the reflecting surface 52b of arc-shaped can be the same or different.In addition, the second reflecting mirror 52 can also be with first instead It penetrates the opening edge 51c connection of mirror 51 and is formed.

Also, it is shown in FIG. 5, in the linking portion of the first reflecting mirror 51 and the second reflecting mirror 52, the second reflecting mirror 52 end is located at the shape of inside compared with the opening edge 51c of the first reflecting mirror 51.But the end of the second reflecting mirror 52 It can be the shape in the outer part positioned at the opening edge 51c than the first reflecting mirror 51.

4 > light source 21 of < is made of multiple LED elements, but can also be made of multiple LD (laser diode) element.

In addition, light irradiation device 1 can also have multiple light sources 21.In this case, each light source 21 can also be with second On the basis of the opening portion 53 (referring to Fig. 5) of reflecting mirror 52, the position of the opposite side on insertion road 61, i.e. optical fiber 200 is configured.At this In the case of, each light source 21 is relative to insertion road 61, i.e. position of the configuration of optical fiber 200 in the side opposite with the first reflecting mirror 51.

5 > of < in the above-described embodiment, illustrates that the insertion road 61 when observing along the direction D1 is round situation, but be inserted into The shape on road 61 is arbitrary.Insertion road 61 when observing along the direction D1 for example can be multilateral shape, be also possible to ellipse Shape.

In addition, in the above-described embodiment, illustrating the inboard portion structure for the insertion section 6 that insertion road 61 is made of cylindrical body At the case where, but light irradiation device 1 may not possess insertion section 6 itself, and the sky of the inboard portion by reflecting mirror (51,52) Between constitute insertion road 61.In addition, " " center " on insertion road 61 refers to that in the state that insert has optical fiber 200, the optical fiber 200 leads to Position is crossed, is the predetermined position for instigating optical fiber 200 to pass through in the state of before inserting optical fiber 200.In the latter case, The position for being inserted into the center on road 61 can be set as being inserted into the position at the center of the inscribed circle on road 61.

6 > of < in the above-described embodiment, illustrates make optical fiber in the case where light irradiation device 1 has insertion road 61 Insert has the case where optical fiber 200 in the state that 200 center 200a is located at the position of the center 61a on insertion road 61.But optical fiber 200 can also deviate the state insert of the center 61a on insertion road 61 with its center 200a.As described above, when optical fiber 200 is from the The center 52a eccentric position of the center 51a of one reflecting mirror 51 and the second reflecting mirror 52 insert in the case where, can be realized with The identical effect of the effect illustrated in above embodiment.In this case, the center 61a for being inserted into road 61 is not necessarily required to from the The center 51a of one reflecting mirror 51 is eccentric, or does not need eccentric from the center 52a of the second reflecting mirror 52.

7 > of < in the above-described embodiment, illustrates light irradiation device 1 to the device of transported 200 irradiation light of optical fiber.But It is that the present invention is not limited to such Land use systems.For example, the optical fiber 200 fixed from 21 pairs of light source irradiates in light irradiation The mode of light is also within the scope of the invention.

In addition, in the above-described embodiment, illustrating light irradiation device 1 to the device of 200 irradiation light of optical fiber.But make For the wire rod of the object of irradiation light it is not limited to optical fiber, such as is also possible to fiber etc..By using light irradiation device 1 to fiber Irradiating ultraviolet light, the surface that can be used in fiber are modified.

Symbol description

1: light irradiation device

2: light source unit

3: insertion unit

4: interconnecting piece

4a: rotary shaft

5: main part

6: insertion section

7: fixed part

8: main body cooling end

8a: cooling main body

8b: inflow part

8c: outflow portion

21: light source

21a: the region near the center of light source

21b: the region near the end of light source

22: light source cooling end

22a: cooling main body

22b: inflow part

22c: outflow portion

23: framework

23a: transmittance section

23b: light shielding part

24: power feeding section

24a: electrical power source connection

24b: terminal board

50: concavity

51: the first reflecting mirrors

The center of the arc-shaped of 51a: the first reflecting mirror

The reflecting surface of 51b: the first reflecting mirror

51c: opening edge

52: the second reflecting mirrors

The center of the arc-shaped of 52a: the second reflecting mirror

The reflecting surface of 52b: the second reflecting mirror

53: opening portion

61: insertion road

61a: it is inserted into the center on road

71,72: clamping part

100: fiber fabrication apparatus

110: conveying device

111,112: transfer unit

120: applying device

200: optical fiber

200a: the center of optical fiber

300: the reflecting mirror of reference example

300a: the center of the arc-shaped of the reflecting mirror of reference example

300b: the reflecting surface of the reflecting mirror of reference example

D1: first distance

D2: second distance