阅读说明：本技术 一种led黑板灯防蓝光方法及led黑板灯 (Blue light prevention method for LED blackboard lamp and LED blackboard lamp ) 是由 刘睿 谢新根 崔正奎 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种LED黑板灯防蓝光方法,包括以下步骤,步骤一：一次配光,设置透镜对LED光源发出的光进行反射与折射,得到一次出射光；步骤二：二次配光,设置反射腔对步骤一中的一次出射光进行反射,得到二次出射光；步骤三：三次配光,设置透明的微晶板对步骤二中的二次出射光进行衍射与漫反射,所述微晶板的出射面设有若干颗粒状凸起,得到三次出射光；步骤四：在微晶板的出射面镀一层二氧化钛导光膜,对步骤三中的三次出射光进行折射、过滤与反射,得到柔和均匀、眩光少、无蓝光危害的照明光。本发明经二至三次配光再给合微晶板散射,可提升黑板面照度均匀度,有效降低蓝光危害,降低眩光,使用感觉良好,发光柔和,防蓝光效果好。(The invention discloses a blue light prevention method for an LED blackboard lamp, which comprises the following steps: primary light distribution, wherein a lens is arranged to reflect and refract light emitted by the LED light source to obtain primary emergent light; step two: secondary light distribution, wherein a reflection cavity is arranged to reflect the primary emergent light in the first step to obtain secondary emergent light; step three: thirdly, distributing light, wherein a transparent microcrystalline plate is arranged to diffract and diffuse the secondary emergent light in the second step, and a plurality of granular protrusions are arranged on the emergent surface of the microcrystalline plate to obtain third emergent light; step four: and plating a layer of titanium dioxide light guide film on the emergent surface of the microcrystalline plate, and refracting, filtering and reflecting the three emergent lights in the third step to obtain soft and uniform illuminating light with less glare and no blue light hazard. The invention scatters the synthesized microcrystalline plate after two to three light distributions, can improve the illumination uniformity of the blackboard surface, effectively reduces the harm of blue light, reduces glare, has good use feeling, soft light emission and good blue light prevention effect.)

1. A blue light prevention method for an LED blackboard lamp is characterized by comprising the following steps: comprises the following steps of (a) carrying out,

the method comprises the following steps: primary light distribution, wherein a lens is arranged to reflect and refract light emitted by the LED light source to obtain primary emergent light;

step two: secondary light distribution, wherein a reflection cavity is arranged to reflect the primary emergent light in the first step to obtain secondary emergent light;

step three: thirdly, distributing light, wherein a transparent microcrystalline plate is arranged to diffract and diffuse the secondary emergent light in the second step, and a plurality of granular protrusions are arranged on the emergent surface of the microcrystalline plate to obtain third emergent light;

step four: and plating a layer of titanium dioxide light guide film on the emergent surface of the microcrystalline plate, and refracting, filtering and reflecting the three emergent lights in the third step to obtain soft and uniform illuminating light with less glare and no blue light hazard.

2. The utility model provides a LED blackboard lamp which characterized in that: including the lamp body and install in the end cover at lamp body both ends, luminous bar LED light source and bar lens are installed from top to bottom in proper order to upper portion in the lamp body, bar LED light source includes that bar lamp plate and equipartition are located a plurality of LED lamp pearls of bar lamp plate bottom, bar lens's top is equipped with the bar recess, LED lamp pearl is located the top of bar recess, the bottom of bar recess is equipped with one and makes progress bellied bar cambered surface, bar lens's below is equipped with a reflection chamber, transparent micrite board is installed to bottom in the lamp body, the bottom equipartition of micrite board is equipped with a plurality of graininess archs.

3. The LED blackboard lamp according to claim 2, characterized in that: and a lamp panel mounting groove for mounting the bar-shaped LED light source is formed in the upper part in the lamp housing.

4. The LED blackboard lamp according to claim 2, characterized in that: the strip lens all be equipped with the installation sand grip in both sides around, upper portion in the lamp body be equipped with the lens mounting groove that the installation sand grip corresponds.

5. The LED blackboard lamp according to claim 2, characterized in that: and a microcrystalline plate mounting groove for mounting the microcrystalline plate is formed in the bottom of the lamp shell.

6. The LED blackboard lamp according to claim 2, characterized in that: the granular protrusions are regular hexagonal pyramid granular protrusions.

7. The LED blackboard lamp according to claim 2, characterized in that: and a titanium dioxide light guide coating is arranged on the bottom surface of the microcrystalline board.

8. The LED blackboard lamp according to claim 2, characterized in that: the strip-shaped lens is a PS strip-shaped lens, and the strip-shaped lens comprises a plurality of strip-shaped lenses which are sequentially spliced.

9. The LED blackboard lamp according to claim 2, characterized in that: the microcrystal plate is a milky microcrystal plate or a milky microcrystal plate.

10. The LED blackboard lamp according to claim 1, characterized in that: the lamp body and the end covers are provided with corresponding screw mounting holes, and the top of the lamp body is provided with a hanging piece mounting groove.

Technical Field

The invention relates to the technical field of lamps, in particular to a blue light prevention method for an LED blackboard lamp and the LED blackboard lamp.

Background

The LED blackboard lamp is used as an illumination tool to create a good visual light environment for learning, and makes an important contribution to the formation of a good learning environment. However, most of the existing LED blackboard lamps have the defects of large blue light harm, uneven light emission and low light efficiency utilization rate, and can generate large glare to cause poor lighting environment and visual fatigue, so that the learning efficiency is reduced, and even the eyesight is reduced. Therefore, there is a need for improvements in the prior art to avoid the disadvantages of the prior art.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a method for preventing blue light of an LED blackboard lamp.

The invention further aims to provide the LED blackboard lamp which is simple in structure and good in blue light prevention effect.

The invention is realized by the following technical scheme:

a method for preventing blue light of an LED blackboard lamp comprises the following steps,

the method comprises the following steps: primary light distribution, wherein a lens is arranged to reflect and refract light emitted by the LED light source to obtain primary emergent light;

step two: secondary light distribution, wherein a reflection cavity is arranged to reflect the primary emergent light in the first step to obtain secondary emergent light;

step three: thirdly, distributing light, wherein a transparent microcrystalline plate is arranged to diffract and diffuse the secondary emergent light in the second step, and a plurality of granular protrusions are arranged on the emergent surface of the microcrystalline plate to obtain third emergent light;

step four: and plating a layer of titanium dioxide light guide film on the emergent surface of the microcrystalline plate, and refracting, filtering and reflecting the three emergent lights in the third step to obtain soft and uniform illuminating light with less glare and no blue light hazard.

The utility model provides a LED blackboard lamp, includes the lamp body and install in the end cover at lamp body both ends, luminous bar LED light source and bar lens are installed from top to bottom in proper order to upper portion in the lamp body, bar LED light source includes that bar lamp plate and equipartition are located a plurality of LED lamp pearls of bar lamp plate bottom, the top of bar lens is equipped with the bar recess, LED lamp pearl is located the top of bar recess, the bottom of bar recess is equipped with one bellied bar cambered surface that makes progress, the below of bar lens is equipped with a reflection chamber, transparent micrite board is installed to bottom in the lamp body, the bottom equipartition of micrite board is equipped with a plurality of graininess archs.

And further, a lamp panel mounting groove for mounting the bar-shaped LED light source is formed in the upper part in the lamp shell.

Further, both sides all are equipped with the installation sand grip around the bar lens, upper portion in the lamp body be equipped with the lens mounting groove that the installation sand grip corresponds.

Further, a microcrystalline plate mounting groove for mounting the microcrystalline plate is formed in the bottom of the lamp shell.

Further, the granular protrusions are regular hexagonal pyramid granular protrusions.

Further, a titanium dioxide light guide coating is arranged on the bottom surface of the microcrystalline board.

Further, the strip-shaped lens is a PS strip-shaped lens, and the strip-shaped lens comprises a plurality of strip-shaped lenses which are sequentially connected.

Further, the microcrystal plate is a milky-white microcrystal plate or a milky-white microcrystal plate.

Further, the end covers are installed at the two ends of the lamp shell through screws, the lamp shell and the end covers are provided with corresponding screw installation holes, and the top of the lamp shell is provided with a hanging piece installation clamping groove.

Compared with the prior art, the LED blackboard lamp provided by the invention scatters the combined microcrystalline plate after two to three light distributions, and has the following beneficial effects:

1. the uniformity of the illuminance of the blackboard surface is improved.

2. Effectively reducing the harm of blue light.

3. Reduce glare and has good use feeling.

According to the LED blackboard lamp, the strip-shaped groove is formed in the top of the strip-shaped lens, the LED lamp beads are arranged above the strip-shaped groove, the strip-shaped arc surface protruding upwards is arranged at the bottom of the strip-shaped groove, the reflecting cavity is arranged below the strip-shaped lens, the transparent microcrystalline plate is arranged at the bottom in the lamp shell, the granular protrusions are uniformly distributed at the bottom of the microcrystalline plate, light emitted by the LED lamp beads enters the strip-shaped lens from the strip-shaped arc surface after being reflected by the strip-shaped groove, is refracted and then transmitted to the reflecting cavity from the bottom of the strip-shaped lens, and is emitted by the microcrystalline plate after being reflected by the reflecting cavity, and the microcrystalline plate refracts, diffracts and diffusely reflects light, so that light emitted by the LED blackboard lamp is good in blue light glare prevention effect, small in blue light hazard, the safety level of the blue light hazard reaches 0, the light emitting is uniform, the light utilization efficiency is high, the RG is reduced, the URG is not more than 15, and the illumination efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an LED blackboard lamp of the present invention;

FIG. 2 is an exploded view of the LED blackboard lamp of the present invention;

FIG. 3 is a schematic cross-sectional view of the LED blackboard lamp of the present invention.

In the figure: 1-a lamp housing; 2-end cap; 3-bar LED light sources; 4-a strip lens; 5-bar lamp panel; 6-LED lamp beads; 7-strip-shaped grooves; 8-a strip-shaped arc surface; 9-a reflective cavity; 10-a microcrystalline plate; 11-lamp panel mounting groove; 12-installing convex strips; 13-a lens mounting groove; 14-a microcrystal plate mounting groove; 15-screw mounting holes; and 16, mounting a pendant clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A method for preventing blue light of an LED blackboard lamp comprises the following steps,

the method comprises the following steps: primary light distribution, wherein a lens is arranged to reflect and refract light emitted by the LED light source to obtain primary emergent light;

step two: secondary light distribution, wherein a reflection cavity is arranged to reflect the primary emergent light in the first step to obtain secondary emergent light;

step three: thirdly, distributing light, wherein a transparent microcrystalline plate is arranged to diffract and diffuse the secondary emergent light in the second step, and a plurality of granular protrusions are arranged on the emergent surface of the microcrystalline plate to obtain third emergent light;

step four: and plating a layer of titanium dioxide light guide film on the emergent surface of the microcrystalline plate, and refracting, filtering and reflecting the three emergent lights in the third step to obtain soft and uniform illuminating light with less glare and no blue light hazard.

In the specific implementation, metallic element cobalt is added into the titanium dioxide light guide film, so that the blue light filtering effect is achieved, and the blue light preventing effect is better.

Compared with the prior art, the LED blackboard lamp provided by the invention scatters the combined microcrystalline plate after two to three light distributions, and has the following beneficial effects:

1. the uniformity of the illuminance of the blackboard surface is improved.

2. Effectively reducing the harm of blue light.

3. Reduce glare and has good use feeling.

The LED blackboard lamp comprises a lamp shell 1 and end covers 2 arranged at two ends of the lamp shell 1, a downward luminous strip-shaped LED light source 3 and a strip-shaped lens 4 are sequentially arranged at the upper part in the lamp shell 1 from top to bottom, the strip-shaped LED light source 3 comprises a strip-shaped lamp plate 5 and a plurality of LED lamp beads 6 uniformly distributed at the bottom of the strip-shaped lamp plate 5, a strip-shaped groove 7 is formed in the top of the strip-shaped lens 4, the LED lamp beads 6 are arranged above the strip-shaped groove 7, a strip-shaped cambered surface 8 protruding upwards is arranged at the bottom of the strip-shaped groove 7, a reflection cavity 9 is arranged below the strip-shaped lens 4, a transparent microcrystalline plate 10 is arranged at the bottom in the lamp shell 1, and a plurality of granular protrusions are uniformly distributed at the bottom of the microcrystalline plate 10. The top of the strip-shaped lens 4 is provided with a strip-shaped groove 7, the LED lamp beads 6 are arranged above the strip-shaped groove 7, the bottom of the strip-shaped groove 7 is provided with a strip-shaped arc surface 8 protruding upwards, the lower part of the strip-shaped lens 4 is provided with a reflecting cavity 9, the bottom in the lamp shell 1 is provided with a transparent microcrystalline plate 10, the bottom of the microcrystalline plate 10 is uniformly provided with a plurality of granular protrusions, light emitted by the LED lamp beads 6 is reflected by the strip-shaped groove 7, enters the strip-shaped lens 4 from the strip-shaped arc surface 8 to be refracted, then is transmitted to the reflecting cavity 9 from the bottom of the strip-shaped lens 4, is reflected by the reflecting cavity 9 and then is emitted by the microcrystalline plate 10, and the microcrystalline plate 10 refracts, diffracts and diffusely reflects light, so that the light emitted by the LED blackboard lamp is soft, the blue light prevention effect is good, the blue light hazard is small, the safety level of the blue light hazard reaches 0, the light is uniform in light emission, the light utilization efficiency is high, the URG is reduced, and the URG is less than or equal to 15, the lighting efficiency is improved.

The upper portion in the lamp body 1 is equipped with the lamp plate mounting groove 11 that supplies the installation of bar LED light source 3, makes things convenient for the installation of bar LED light source 3.

Both sides all are equipped with installation sand grip 12 around bar lens 4, and the upper portion in the lamp body 1 is equipped with the lens mounting groove 13 that corresponds with installation sand grip 12, does benefit to bar lens 4's installation.

The bottom in the lamp housing 1 is provided with a microcrystal plate mounting groove 14 for mounting the microcrystal plate 10, so that the microcrystal plate 10 can be conveniently mounted.

As a specific implementation mode, the granular protrusions are regular hexagonal pyramid-shaped granular protrusions, and the regular hexagonal pyramid-shaped granular protrusions are more beneficial to reducing glare.

The bottom surface of the microcrystal plate 10 is provided with a titanium dioxide light guide coating, which is more beneficial to reducing glare.

Strip lens 4 is PS strip lens, and PS strip lens's luminousness is high, and strip lens 4 is including a plurality of strip lens that continue to connect in proper order, and the strip lens that continue to connect in proper order more does benefit to strip lens 4 and installs in strip lens mounting groove 13, and can prevent the deformation that 4 overlengths of strip lens and arouse to influence lens refraction efficiency.

In specific implementation, the microcrystal plate 10 is a milky microcrystal plate or a milky microcrystal plate, and has good light transmittance and good diffuse reflection effect.

The end covers 2 are mounted at two ends of the lamp shell 1 through screws, and the lamp shell 1 and the end covers 2 are provided with corresponding screw mounting holes 15, so that the end covers 2 can be conveniently connected and mounted.

The top of the lamp shell 1 is provided with a mounting hanger clamping groove 16, which is beneficial to quick mounting of a mounting hanger.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.