阅读说明：本技术 一种基于光学的镜片表面刮痕检测装置 (Optics-based lens surface scratch detection device ) 是由 胡江龙 于 2019-11-15 设计创作，主要内容包括：本发明公开的一种基于光学的镜片表面刮痕检测装置,包括底座,所述底座上端固连有固定板,所述固定板内左右贯通的设有夹持腔,所述夹持腔内设有夹持装置,通过所述夹持装置可夹持住镜片,所述底座左右两侧对称且可滑动的设有支撑杆,所述底座与所述支撑杆之间滑动连接,本发明可分别对凹透镜以及凸透镜片进行表面刮痕检测,并且能够根据镜片度数来调节光源与镜片之间的距离,不需要更换检测设备,方便快捷,并且根据光学的折射原理来检测刮痕,镜片上有刮痕时折射光线就会发生改变,进而能够检测出痕迹较浅的刮痕。(The invention discloses an optical-based lens surface scratch detection device, which comprises a base, wherein the upper end of the base is fixedly connected with a fixed plate, a clamping cavity is arranged in the fixed plate in a left-right through manner, a clamping device is arranged in the clamping cavity, a lens can be clamped through the clamping device, supporting rods are symmetrically arranged on the left side and the right side of the base in a sliding manner, and the base is connected with the supporting rods in a sliding manner.)

1. The utility model provides a lens surface scratch detection device based on optics, includes the base, its characterized in that: the upper end of the base is fixedly connected with a fixed plate, a clamping cavity is arranged in the fixed plate in a left-right through manner, a clamping device is arranged in the clamping cavity, and the lens can be clamped by the clamping device; the optical device faces the lens, a light probe is arranged in the optical device, the light probe in the optical device at one side emits light, and the light probe in the optical device at the other side is used for receiving light; the light ray probes on two sides correspond to each other one by one, and when the light ray probe on the side for receiving the light ray cannot receive the light ray signal, the position, irradiated on the lens, of the corresponding light ray probe for emitting the light ray has a scratch; adjusting devices are symmetrically arranged in the base from left to right, and indication arrows in the adjusting devices are respectively connected to the supporting rods on the two sides; the optical device is characterized in that a driving device is arranged in the base, a gear cavity is arranged in the supporting rod, a steering bevel gear is rotatably arranged in the gear cavity, the left end and the right end of the driving device are fixedly connected with the steering bevel gear through sliding shafts respectively, the upper end of the steering bevel gear is meshed with the upper end of a connecting bevel gear, the upper end of the connecting bevel gear is fixedly connected with a vertical shaft, and the upper end of the vertical shaft is connected with the optical device.

2. An optical-based lens surface scratch detection device as claimed in claim 1, wherein: the driving device comprises a driving cavity arranged in the base, an intermediate gear is rotatably arranged in the driving cavity, the lower end of the intermediate gear is fixedly connected with a driving shaft, a motor is fixedly arranged in the inner wall of the lower side of the driving cavity, and the lower end of the driving shaft is in power connection with the motor; symmetrical gears are arranged at the left end and the right end of the middle gear in a meshed mode, one ends, far away from the symmetrical center, of the symmetrical gears are fixedly connected with a fixed shaft, a connecting hole with an opening facing the fixed shaft is formed in the supporting rod, and the fixed shaft extends into the connecting hole and is connected with the supporting rod in a sliding mode; the fixed shaft is internally provided with a spline hole with an opening facing the supporting rod, and the sliding shaft extends into the spline hole and is connected with the fixed shaft through a spline.

3. An optical-based lens surface scratch detection device as claimed in claim 2, wherein: adjusting device link up and bilateral symmetry's locating including the front and back logical groove in the base, the bracing piece is close to symmetry center one end and extends to logical inslot, symmetry and slidable are equipped with the instruction arrow head around leading to the inslot, instruct the arrow head link firmly in the bracing piece, lead to setting firmly of symmetry around leading to in the inslot upside inner wall and mark the chi, it is directional to indicate the arrow head mark the chi and pass through mark corresponding scale on the chi, come to represent the detection the number of degrees of lens.

4. An optical-based lens surface scratch detection device as claimed in claim 1, wherein: the optical device comprises a transmission cavity arranged in the supporting rod, a driving bevel gear is rotatably arranged in the transmission cavity, the upper end of the vertical shaft is fixedly connected with the driving bevel gear, one end of the driving bevel gear, which is close to the symmetry center, is meshed with one end of the driving bevel gear, which is close to the symmetry center, is provided with a driven bevel gear, one end of the driven bevel gear, which is close to the symmetry center, is fixedly connected with a supporting shaft, and one end of the supporting shaft; nine worm wheels are annularly distributed on the circumferential surface of the worm in an array manner and are meshed with each other, a rope winding wheel is fixedly connected to one clockwise end of each worm wheel, and an elastic rope is wound on the circumferential surface of each rope winding wheel; one end of the support rod, which is close to the symmetry center, is fixedly connected with a disc, the diameter of the disc on the right side is larger than that of the disc on the left side, an annular groove with an opening facing the symmetry center is formed in the disc, and one end of the elastic rope extends into the annular groove and is fixedly connected with the disc; eleven light ray probes are fixedly connected to the elastic rope, and the light ray probes located in the annular grooves can emit light rays or receive light rays.

5. An optical-based lens surface scratch detection device as claimed in claim 4, wherein: nine supporting columns are distributed on the circumferential surface of the disc in an annular array mode and fixedly connected, two guide wheels are rotatably connected to the supporting columns, and the guide wheels can guide the elastic ropes.

6. An optical-based lens surface scratch detection device as claimed in claim 4, wherein: the worm wheel has linked firmly the connecting axle along anticlockwise one end, the connecting axle rotates along anticlockwise one end and is connected with the backup pad, the backup pad link firmly in on the transmission intracavity wall, the backup pad with the connecting axle is supported the worm wheel with the rope winding wheel.

7. An optical-based lens surface scratch detection device as claimed in claim 1, wherein: the clamping device comprises a front groove and a rear groove which are symmetrical and are communicated with the clamping cavity, clamping rods are symmetrically arranged in the grooves in an up-down mode and are rotatably arranged, a torsion shaft is fixedly connected in each clamping rod, the left end and the right end of the torsion shaft are rotatably connected to the inner walls of the left side and the right side of each groove, anti-slip pads are fixedly arranged in one end faces, close to the symmetrical centers, of the clamping rods, and the lenses are clamped between the four clamping rods.

8. An optical-based lens surface scratch detection device as claimed in claim 7, wherein: and torsional springs are fixedly connected between the left end and the right end of the clamping rod and the inner walls of the left side and the right side of the groove.

Technical Field

The invention relates to the field of glasses, in particular to an optical-based lens surface scratch detection device.

Background

The invention discloses a pair of glasses, which is a common optical device in daily life, wherein the glasses are used for improving eyesight, protecting the glasses or serving as decoration purposes through lens lenses embedded in a frame, a myopia lens is a concave lens generally, a hyperopia lens is a convex lens generally, scratches can be generated on the surface of the lens after long-time use, some scratches are shallow and difficult to detect, but the sight line can be influenced after the glasses are worn, a fuzzy feeling can be generated, the positions with scratches are required to be polished when the lens is repaired, but the scratch positions are difficult to accurately determine, and if the whole lens is polished, the consumed time is long and the lens is easy to damage.

Disclosure of Invention

The technical problem is as follows:

the shallow scratches on the lens make it difficult to determine the exact location.

In order to solve the above problems, the present example designs an optical lens surface scratch detection device, which comprises a base, wherein a fixing plate is fixedly connected to the upper end of the base, a clamping cavity is arranged in the fixing plate and is through from left to right, a clamping device is arranged in the clamping cavity, the lens can be clamped by the clamping device, supporting rods are symmetrically and slidably arranged on the left and right sides of the base, the base is slidably connected with the supporting rods, an optical device is connected to the upper end of the supporting rods, the optical device faces the lens, a light probe is arranged in the optical device, the light probe in the optical device on one side emits light, the light probe in the optical device on the other side receives light, and when the lens is a concave lens, the light can be diffused through the lens, when the lens is a convex lens, light rays can be focused through the lens, the light ray probes on two sides correspond one to one, when the light ray probe on one side for receiving the light rays cannot receive a light ray signal, the position, irradiated on the lens, of the light ray probe for correspondingly emitting the light rays is scratched, adjusting devices are symmetrically arranged in the base from left to right, indicating arrows in the adjusting devices are respectively connected to the supporting rods on two sides, the distance between the optical device and the lens can be adjusted by sliding the supporting rods, a driving device is arranged in the base, a gear cavity is arranged in the supporting rods, a steering bevel gear is rotatably arranged in the gear cavity, the left end and the right end of the driving device are respectively fixedly connected to the steering bevel gear through sliding shafts, a connecting bevel gear is meshed with the upper end of the steering bevel gear, and a vertical shaft is fixedly connected to the, the upper end of the vertical shaft is connected to the optical device, the driving device drives the sliding shaft and synchronously drives the optical devices on two sides through the transmission among the steering bevel gear, the connecting bevel gear and the vertical shaft, and the optical devices are used for adjusting the distribution condition of the light ray probes. Beneficially, the driving device includes a driving chamber disposed in the base, an intermediate gear is rotatably disposed in the driving chamber, a driving shaft is fixedly connected to a lower end of the intermediate gear, a motor is fixedly disposed in an inner wall of a lower side of the driving chamber, a lower end of the driving shaft is connected to the motor in a power manner, symmetrical gears are disposed at left and right ends of the intermediate gear in a meshed manner, a fixed shaft is fixedly connected to one end of the symmetrical gear away from a center of symmetry, a connecting hole with an opening facing the fixed shaft is disposed in the supporting rod, the fixed shaft extends into the connecting hole and is slidably connected with the supporting rod, a spline hole with an opening facing the supporting rod is disposed in the fixed shaft, the sliding shaft extends into the spline hole and is in spline connection with the fixed shaft, the motor is started, and the, and then the symmetrical gears on the two sides are driven to synchronously rotate, and further the steering bevel gear is driven to rotate through the fixed shaft and the sliding shaft, so that the connecting bevel gear is driven to rotate, the optical device is driven through the vertical shaft, the supporting rod slides, and further the sliding shaft is driven to slide, and at the moment, the sliding shaft is connected with the fixed shaft.

Beneficially, the adjusting device includes a through groove which is through from front to back and is arranged in the base in bilateral symmetry, one end of the supporting rod close to the symmetry center extends into the through groove, the through groove is provided with indication arrows which are symmetrical from front to back and can slide, the indication arrows are fixedly connected to the supporting rod, the inner wall of the upper side of the through groove is provided with indication rulers which are symmetrical from front to back, the indication arrows point to the indication rulers and indicate the detected degrees of the lenses through corresponding scales on the indication rulers, when the lenses are concave lenses, the supporting rod on the right side is slid according to the degrees of the lenses to adjust the distance between the optical device on the right side and the lenses, when the lenses are convex lenses, the supporting rod on the left side is slid according to the degrees of the lenses, the distance between the optical device on the left side and the lens is adjusted, and the support rod on the right side is located at the left limit position.

Beneficially, the optical device comprises a transmission cavity arranged in the support rod, a driving bevel gear is rotatably arranged in the transmission cavity, the upper end of the vertical shaft is fixedly connected with the driving bevel gear, a driven bevel gear is arranged at one end of the driving bevel gear close to the symmetry center in a meshed manner, a support shaft is fixedly connected at one end of the driven bevel gear close to the symmetry center, a worm is fixedly connected at one end of the support shaft close to the symmetry center, nine worm gears are arranged on the circumferential surface of the worm in an annular array and in a meshed manner, a rope winding wheel is fixedly connected to one clockwise end of the worm gears, an elastic rope is wound on the circumferential surface of the rope winding wheel, a disc is fixedly connected at one end of the support rod close to the symmetry center, the diameter of the disc at the right side is larger than that of the disc at the left side, an annular, eleven light probes are fixedly connected to the elastic rope and located in the annular groove, the light probes can emit light or receive light, the vertical shaft rotates and drives the driving bevel gear to rotate, the driven bevel gear is driven to rotate, the worm is driven to rotate through the supporting shaft, the worm wheel is driven to rotate and further drive the rope winding wheel to rotate and further wind the elastic rope, the elastic rope has elasticity, the distance between the two adjacent light probes can be prolonged, the distribution condition of the light probes in the annular groove can be changed, and the range of the surface detection of the lens can be enlarged.

Preferably, nine supporting columns are distributed on the circumferential surface of the disc in an annular array mode and fixedly connected, two guide wheels are rotatably connected to the supporting columns, and the guide wheels can guide the elastic ropes.

Preferably, the worm wheel has linked firmly the connecting axle along anticlockwise one end, the connecting axle rotates along anticlockwise one end and is connected with the backup pad, the backup pad link firmly in on the transmission intracavity wall, the backup pad with the connecting axle is supported the worm wheel with the rope winding wheel.

Beneficially, clamping device including the longitudinal symmetry and be linked together in the recess in centre gripping chamber, longitudinal symmetry and rotatable supporting rod that is equipped with in the recess, the supporting rod internal fixation has the torsion shaft, both ends rotate about the torsion shaft connect in recess left and right sides inner wall, the supporting rod is close to a central symmetry terminal surface and has set firmly the slipmat, the lens centre gripping is in four between the supporting rod, the slipmat can avoid the lens slides and drops.

Preferably, torsion springs are fixedly connected between the left end and the right end of the clamping rod and the inner walls of the left side and the right side of the groove, and the lenses are clamped tightly through the four clamping rods under the elastic action of the torsion springs.

The invention has the beneficial effects that: the invention can respectively detect the surface scratches of the concave lens and the convex lens, can adjust the distance between the light source and the lens according to the lens power, does not need to replace detection equipment, is convenient and quick, detects the scratches according to the optical refraction principle, changes the refraction light when the lens has the scratches, and further can detect the scratches with shallow traces.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic diagram of the overall structure of an optical-based lens surface scratch detection apparatus according to the present invention;

FIG. 2 is an enlarged schematic view of "A" of FIG. 1;

FIG. 3 is an enlarged schematic view of "B" of FIG. 1;

FIG. 4 is an enlarged schematic view of "C" of FIG. 1;

FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 1;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 2;

FIG. 7 is a schematic view of the structure in the direction "F" of FIG. 2;

FIG. 8 is a schematic view of the structure in the direction "G-G" of FIG. 3;

FIG. 9 is a schematic view of the structure in the direction "H-H" of FIG. 5.

Detailed Description

The invention will now be described in detail with reference to fig. 1-9, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an optical-based lens surface scratch detection device, which comprises a base 11, wherein the upper end of the base 11 is fixedly connected with a fixed plate 20, a clamping cavity 18 is arranged in the fixed plate 20 in a left-right through manner, a clamping device 100 is arranged in the clamping cavity 18, a lens 22 can be clamped through the clamping device 100, support rods 17 are symmetrically arranged on the left side and the right side of the base 11 in a sliding manner, the base 11 is connected with the support rods 17 in a sliding manner, an optical device 102 is connected to the upper end of the support rods 17, the optical device 102 faces the lens 22, a light probe 27 is arranged in the optical device 102, the light probe 27 in the optical device 102 on one side emits light, the light probe 27 in the optical device 102 on the other side is used for receiving light, when the lens 22 is a concave lens, the light can be diffused through the lens 22, when the lens 22 is a convex lens, light rays can be focused through the lens 22, the light ray probes 27 on two sides correspond to each other one by one, when the light ray probe 27 on the side receiving the light rays cannot receive a light ray signal, the position of the corresponding light ray probe 27 emitting the light rays, which irradiates the lens 22, is scratched, adjusting devices 101 are symmetrically arranged in the base 11 from left to right, indicating arrows 41 in the adjusting devices 101 are respectively connected to the supporting rods 17 on two sides, the distance between the optical device 102 and the lens 22 can be adjusted by sliding the supporting rods 17, a driving device 103 is arranged in the base 11, a gear cavity 46 is arranged in the supporting rod 17, a steering bevel gear 47 is rotatably arranged in the gear cavity 46, the left end and the right end of the driving device 103 are respectively fixedly connected to the steering bevel gear 47 through sliding shafts 44, and a connecting bevel gear 45 is meshed with the upper end of the steering bevel gear, the upper end of the connecting bevel gear 45 is fixedly connected with a vertical shaft 23, the upper end of the vertical shaft 23 is connected with the optical device 102, and the driving device 103 drives the sliding shaft 44 and synchronously drives the optical devices 102 on two sides through the transmission among the steering bevel gear 47, the connecting bevel gear 45 and the vertical shaft 23, so as to adjust the distribution condition of the optical line probes 27.

According to the embodiment, the driving device 103 will be described in detail below, the driving device 103 includes a driving cavity 16 disposed in the base 11, an intermediate gear 15 is rotatably disposed in the driving cavity 16, a driving shaft 14 is fixedly connected to a lower end of the intermediate gear 15, a motor 13 is fixedly disposed in an inner wall of a lower side of the driving cavity 16, a lower end of the driving shaft 14 is dynamically connected to the motor 13, symmetrical gears 12 are disposed at left and right ends of the intermediate gear 15 in a meshed manner, a fixed shaft 39 is fixedly connected to an end of the symmetrical gear 12 away from a symmetrical center, a connecting hole 43 with an opening facing the fixed shaft 39 is disposed in the supporting rod 17, the fixed shaft 39 extends into the connecting hole 43 and is slidably connected to the supporting rod 17, a spline hole 38 with an opening facing the supporting rod 17 is disposed in the fixed shaft 39, the sliding shaft 44 extends into the spline hole 38 and is connected to the fixed shaft 39, the motor 13 is started, and then the driving shaft 14 drives the middle gear 15 to rotate, and further drives the symmetrical gears 12 on both sides to synchronously rotate, and further drives the steering bevel gear 47 to rotate through the fixed shaft 39 and the sliding shaft 44, and further drives the connecting bevel gear 45 to rotate, and further drives the optical device 102 through the vertical shaft 23, and slides the supporting rod 17, and further drives the sliding shaft 44 to slide, and at this time, the sliding shaft 44 is connected with the fixed shaft 39.

According to an embodiment, the adjusting device 101 is described in detail below, the adjusting device 101 includes a through groove 40 penetrating from front to back and symmetrically arranged in the base 11 from left to right, one end of the supporting rod 17 near a symmetry center extends into the through groove 40, an indicating arrow 41 is symmetrically and slidably arranged in the through groove 40, the indicating arrow 41 is fixedly connected to the supporting rod 17, a marking ruler 42 is symmetrically and fixedly arranged in the inner wall of the upper side of the through groove 40 from front to back, the indicating arrow 41 points to the marking ruler 42 and represents the detected degree of the lens 22 through a corresponding scale on the marking ruler 42, when the lens 22 is a concave lens, the supporting rod 17 on the right side is slid according to the degree of the lens 22 to adjust the distance between the optical device 102 on the right side and the lens 22, and when the supporting rod 17 on the left side is located at a right limit position, when the lens 22 is a convex lens, the distance between the left optical device 102 and the lens 22 is adjusted by sliding the left support bar 17 according to the power of the lens 22, and the right support bar 17 is located at a left limit position.

According to the embodiment, the optical device 102 is described in detail below, the optical device 102 includes a transmission cavity 36 disposed in the support rod 17, a driving bevel gear 35 is rotatably disposed in the transmission cavity 36, the upper end of the vertical shaft 23 is fixedly connected to the driving bevel gear 35, one end of the driving bevel gear 35 near the symmetry center is engaged with a driven bevel gear 34, one end of the driven bevel gear 34 near the symmetry center is fixedly connected to a support shaft 30, one end of the support shaft 30 near the symmetry center is fixedly connected to a worm 31, nine worm gears 33 are disposed on the circumferential surface of the worm 31 in an annular array and engaged with each other, the worm gear 33 is fixedly connected to a rope winding wheel 50 along a clockwise end, an elastic rope 26 is wound on the circumferential surface of the rope winding wheel 50, one end of the support rod 17 near the symmetry center is fixedly connected to a disc 29, the diameter of the disc 29 on the right side, an annular groove 28 with an opening facing the symmetrical center is arranged in the disk 29, one end of the elastic rope 26 extends into the annular groove 28 and is fixedly connected with the disk 29, eleven light probes 27 are fixedly connected to the elastic rope 26, the light probes 27 located in the annular groove 28 can emit light or receive light, the vertical shaft 23 rotates and drives the driving bevel gear 35 to rotate, thereby driving the driven bevel gear 34 to rotate, further driving the worm 31 to rotate through the supporting shaft 30, thereby driving the worm wheel 33 to rotate, further driving the rope winding wheel 50 to rotate, further winding the elastic rope 26, wherein the elastic rope 26 has elasticity, the distance between two adjacent light probes 27 can be extended, and the distribution of the light probes 27 in the annular groove 28 can be changed, so that the detection range of the surface of the lens 22 can be enlarged.

Advantageously, nine supports 25 are distributed in a circular array on the circumferential surface of the disc 29 and are attached, two guide wheels 24 being rotatably connected to the supports 25, the guide wheels 24 being able to guide the elastic cord 26.

Beneficially, the worm wheel 33 is fixedly connected with a connecting shaft 32 at one end in the counterclockwise direction, the connecting shaft 32 is rotatably connected with a supporting plate 37 at one end in the counterclockwise direction, the supporting plate 37 is fixedly connected to the inner wall of the transmission chamber 36, and the supporting plate 37 and the connecting shaft 32 support the worm wheel 33 and the rope winding wheel 50.

According to the embodiment, the following description details the clamping device 100, the clamping device 100 includes a groove 49 which is symmetrical front and back and is communicated with the clamping cavity 18, clamping rods 21 are symmetrically and rotatably arranged in the groove 49, a torsion shaft 48 is fixedly connected in the clamping rods 21, the left and right ends of the torsion shaft 48 are rotatably connected to the inner walls of the left and right sides of the groove 49, non-slip pads 19 are fixedly arranged in one end face of the clamping rod 21, which is close to the symmetrical center, the lenses 22 are clamped between the four clamping rods 21, and the non-slip pads 19 can prevent the lenses 22 from sliding off.

Advantageously, a torsion spring 51 is fixedly connected between the left and right ends of the holding rod 21 and the inner walls of the left and right sides of the groove 49, and the lens 22 is clamped by the four holding rods 21 under the action of the elasticity of the torsion spring 51.

The following describes in detail the use of an optical-based lens surface scratch detection device herein with reference to fig. 1 to 9:

initially, the support bars 17 on both sides are in close proximity to each other, with the light probes 27 both located in the annular groove 28.

When the lens 22 is used, the lens 22 is clamped between the four clamping rods 21, the lens 22 is clamped under the elastic force of the torsion spring 51, the supporting rod 17 is slid according to the degree of the lens 22, when the lens 22 is a concave lens, the supporting rod 17 on the right side is slid rightwards, and then the indicating arrow 41 on the right side is driven to slide until the indicating arrow 41 on the right side points to the scale corresponding to the degree of the lens 22 on the marking ruler 42, at this time, the light probe 27 on the left side emits light, the light probe 27 on the right side receives light, when no scratch is formed on the surface of the lens 22, the light probe 27 on the left side emits light and penetrates through the lens 22, the light probe 27 on the right side can receive light signals, and when the light probe 27 on the right side cannot receive the light signals, the corresponding scratch is;

when the lens 22 is a convex lens, the left support rod 17 slides leftwards, and then the left indication arrow 41 is driven to slide until the left indication arrow 41 points to the scale corresponding to the degree of the lens 22 on the indication ruler 42, at this time, the right light probe 27 emits light, the left light probe 27 receives light, when there is no scratch on the surface of the lens 22, the right light probe 27 emits light and penetrates through the lens 22, the left light probe 27 can receive light signals, and when the left light probe 27 cannot receive light signals, there is a scratch at the position where the corresponding right light probe 27 irradiates the lens 22.

Since the concave lens can disperse light and the convex lens can focus light, the distribution of the right light probe 27 is more dispersed than that of the left light probe 27.

When the distribution of the light probes 27 needs to be changed to expand the detection range of the lens 22, the motor 13 is started, and then the driving shaft 14 drives the intermediate gear 15 to rotate, and then the symmetrical gear 12 is synchronously driven to rotate, and then the fixed shaft 39 drives the sliding shaft 44 to rotate, and further drives the steering bevel gear 47 to rotate, and further drives the connecting bevel gear 45 to rotate, and further drives the driving bevel gear 35 to rotate through the vertical shaft 23, and further drives the driven bevel gear 34 to rotate, and further drives the worm 31 to rotate through the supporting shaft 30, and further drives the worm wheel 33 to rotate, and further drives the rope winding wheel 50 to rotate and wind the elastic rope 26, and further expands the distance between two adjacent light probes 27, and further expands the irradiation range of the lens 22, and at this time, the light probes 27 sliding out of the annular groove 28 are.

The invention has the beneficial effects that: the invention can respectively detect the surface scratches of the concave lens and the convex lens, can adjust the distance between the light source and the lens according to the lens power, does not need to replace detection equipment, is convenient and quick, detects the scratches according to the optical refraction principle, changes the refraction light when the lens has the scratches, and further can detect the scratches with shallow traces.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.