CN112987455A - Perspective glass light guide plate and production method thereof - Google Patents
Perspective glass light guide plate and production method thereof Download PDFInfo
- Publication number
- CN112987455A CN112987455A CN202110248623.0A CN202110248623A CN112987455A CN 112987455 A CN112987455 A CN 112987455A CN 202110248623 A CN202110248623 A CN 202110248623A CN 112987455 A CN112987455 A CN 112987455A
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- China
- Prior art keywords
- light guide
- guide plate
- glass
- glass substrate
- film
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
Abstract
The invention discloses a perspective glass light guide plate and a production method thereof, wherein the glass light guide plate comprises a glass substrate, the glass substrate is provided with a plurality of light guide points, each light guide point comprises a reflecting layer, a light shielding layer and a photoresist layer which are sequentially arranged, the maximum length or the maximum diameter of each light guide point is more than 1um and less than 50um, the duty ratio of all the light guide points is less than or equal to 50 percent, and the production method comprises the following steps: plating a reflecting film and a shading film on one surface of a glass substrate; photoetching and dotting a light guide dot pattern on a mask plate; coating photoresist on the shading film; placing the mask plate on the photoresist, and developing and exposing; removing the unexposed colloid and the film layer; and (5) cleaning and drying. The production method combining the photoetching mask plate and the film coating process can control the diameter of the light guide point within 50um, and has the advantages of simple process, easy operation and high product qualification rate, thereby improving the production efficiency and the cost performance of the light guide plate.
Description
Technical Field
The invention relates to the technical field of machine vision, in particular to a perspective glass light guide plate and a production method thereof.
Background
In the application of machine vision field image snapshot, because the equipment fixing position is limited and the difficult problems such as detection of special object surface defect, the even light filling product of a light is urgently needed, and the application of this light filling product is that the industry camera is located one side of light source and is located the opposite side by the light filling object, requires that the permeability of light guide plate is very high and the homogeneity is also higher to can not have the leaded light point to appear in the picture of taking a candid photograph because of the reflection.
At present, most of the light guide points are produced and formed on a glass substrate in a laser dotting mode, but the following defects exist: on one hand, as the glass is easy to crack, the laser is easy to form tiny cracks on the surface of the glass, and the shooting effect is influenced; on the other hand, the light guide efficiency of the concave light guide points formed on the glass plate is poor, and the contrast of the captured image is poor.
Disclosure of Invention
The invention aims to: aiming at the problems that in the prior art, a light guide point is produced and formed on a glass substrate in a laser dotting mode, fine cracks are easily formed on the surface of glass, and the light guide efficiency of the light guide point is poor, a perspective glass light guide plate and a production method thereof are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a glass light guide plate of perspective, includes the glass substrate, the glass substrate is equipped with a plurality of leaded light points, every leaded light point all includes reflecting layer, light shield layer and the photoresist layer that sets gradually, every the maximum length or the maximum diameter of leaded light point are greater than 1um and are less than 50um, all the duty cycle of leaded light point is less than or equal to 50%.
The maximum length or the maximum diameter of the light guide point is set to be less than 50um, so that the light guide effect of the light guide plate can be ensured, the light guide point cannot appear in a shot picture due to reflection, and the contrast of the snap-shot image can be obviously improved. Then, the duty ratio of the light guide points is set to be less than or equal to 50%, so that the light guide plate is guaranteed to be a perspective structure with high permeability, and a camera can shoot an object to be supplemented with light through the light guide plate. Finally, the reflecting layer and the shading layer are arranged on the light guide point, and the arrangement of the reflecting layer and the shading layer can effectively control the emergent direction of the light rays and prevent the light rays from being emitted from the light guide point, so that the light rays can be uniformly irradiated on an object to be supplemented with light, and a camera shot through glass can easily obtain a picture with high contrast.
As a preferable aspect of the present invention, the maximum length or the maximum diameter of each of the light guide points is greater than 10um and less than 30 um. At the moment, the light guide effect is better, the permeability is better, and the contrast of the captured image can be further improved.
As a preferred scheme of the invention, the distance between two adjacent light guide points is more than 20um and less than 100 um.
As a preferred embodiment of the present invention, the light guide points are arranged in an array on the glass substrate, and the arrangement mode is a linear array, an arc array, or a random arrangement. The light guide points are arranged in a uniform array, so that the uniformity of the glass light guide plate is better.
In a preferred embodiment of the present invention, the glass substrate is an ultra-white glass substrate, thereby further improving the light guiding performance.
The invention also discloses a production method of the perspective glass light guide plate, which comprises the following steps:
the method comprises the following steps: plating a reflecting film and a shading film on one surface of a glass substrate; photoetching and dotting a light guide dot pattern on a mask plate;
step two: coating photoresist on the shading film;
step three: placing the mask plate on the photoresist, and developing and exposing;
step four: removing the unexposed colloid and the film layer;
step five: and (5) cleaning and drying.
The production method provided by the invention adopts a production method combining the photoetching mask plate and the film coating process, can control the maximum length or the maximum diameter of the light guide point within 50um, has the advantages of simple and easy operation process and high product qualification rate, does not scratch the surface of the light guide plate in the production process, and easily clears the surface dirt, thereby improving the production efficiency and the cost performance of the light guide plate.
In a preferred embodiment of the present invention, in the first step, after the glass substrate is cleaned, edged and polished, a reflective film and a light-shielding film are plated.
In the third step, a UV exposure method is used as a preferred embodiment of the present invention.
As a preferred embodiment of the present invention, in the fourth step, the unexposed colloid and film layer are removed by using an alkaline solution; and in the fifth step, cleaning and drying by using ultrasonic waves.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the maximum length or the maximum diameter of the light guide point is set to be less than 50um, so that the light guide effect of the light guide plate can be ensured, the light guide point cannot appear in a shot picture due to reflection, and the contrast of the snap-shot image can be obviously improved. Then, the duty ratio of the light guide points is set to be less than or equal to 50%, so that the light guide plate is guaranteed to be a perspective structure with high permeability, and a camera can shoot an object to be supplemented with light through the light guide plate. Finally, the reflecting layer and the shading layer are arranged on the light guide point, and the arrangement of the reflecting layer and the shading layer can effectively control the emergent direction of the light rays and prevent the light rays from being emitted from the light guide point, so that the light rays can be uniformly irradiated on an object to be supplemented with light, and a camera shot through glass can easily obtain a picture with high contrast.
2. The production method provided by the invention adopts a production method combining the photoetching mask plate and the film coating process, can control the maximum length or the maximum diameter of the light guide point within 50um, has the advantages of simple and easy operation process and high product qualification rate, does not scratch the surface of the light guide plate in the production process, and easily clears the surface dirt, thereby improving the production efficiency and the cost performance of the light guide plate.
Drawings
Fig. 1 is a schematic structural view of a see-through glass light guide plate according to the present invention.
Fig. 2 is a partial sectional view of a see-through glass light guide plate according to the present invention.
Fig. 3 is a light path diagram of the see-through glass light guide plate according to the present invention.
Fig. 4 is a schematic view of a perspective glass light guide plate according to the present invention.
Icon: the light source device comprises a glass substrate 1, a light guide point 2, a reflecting layer 21, a shading layer 22, a photoresist layer 23, a light source 3, a camera 4 and an object to be supplemented with light 5.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1-fig. 2, a glass light guide plate of perspective, including glass substrate 1, 1 array arrangement of glass substrate has leaded light point 2, every leaded light point 2 all includes reflecting layer 21, light shield layer (antireflection layer) 22 and the photoresist layer 23 that sets gradually, every the maximum length or the maximum diameter L of leaded light point 2 are greater than 1um and are less than 50um, adjacent two interval d between the leaded light point 2 is greater than 20um and is less than 100um, all the duty cycle of leaded light point 4 is less than or equal to 50%, preferred, and the duty cycle can be less than or equal to 30%. The light guide point 2 is of a convex or concave structure, and the shape of the light guide point 2 is spherical, elliptical, gradient, bowl-shaped, triangular, rectangular, circular, semicircular and the like. The arrangement mode of the light guide points 2 is linear array, arc array, random number arrangement and the like.
As a more preferable scheme, the maximum length or the maximum diameter of each of the light guide points 2 is more than 10um and less than 30 um. At the moment, a better light guide effect can be ensured, the permeability of the light guide plate is better, and the shooting effect is better.
As a more preferable mode, the glass substrate 1 is an ultra-white glass substrate.
As shown in fig. 3, a light source system includes a light source 3 and a transparent glass light guide plate, wherein light emitted from the light source 3 enters the glass light guide plate, and is reflected and emitted from the glass light guide plate. The light source and the glass light guide plate can be integrated on one device or can be arranged separately.
Example 2
A production method of a perspective glass light guide plate comprises the following steps:
the method comprises the following steps: preparing a glass substrate, carrying out cleaning, edging and polishing treatment, taking one surface of the glass substrate 1 as a mesh surface, and plating a reflecting film and a shading film (antireflection film) on the mesh surface;
step two: dotting a light guide dot pattern on the mask plate by using a photo engraving machine, and manufacturing a standard mask plate according to the required size;
step three: coating a layer of photoresist on the shading film, and placing the standard mask plate on the photoresist for development and exposure;
step four: and (3) removing the redundant coating parts and the photoresist layers except the light guide points by using an alkaline solution, and cleaning and drying by using ultrasonic waves to obtain the see-through glass light guide plate.
As a more preferable embodiment, in the third step, a UV exposure method is used.
As shown in fig. 3-4, when the device is used, the light source 3 and the glass light guide plate are disposed between the camera 4 and the object 5 to be light-compensated, light emitted from the light source 3 is emitted into the glass light guide plate, reflected and emitted onto the object 5 to be light-compensated, so that the light-compensation operation is realized, and then the device is used for shooting through the camera 4.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a glass light guide plate of perspective, its characterized in that, includes glass substrate (1), glass substrate (1) is equipped with a plurality of leaded light point (2), every leaded light point (2) all is including reflector layer (21), light shield layer (22) and photoresist layer (23) that set gradually, every the maximum length or the maximum diameter of leaded light point (2) are greater than 1um and are less than 50um, all the duty cycle of leaded light point (4) is less than or equal to 50%.
2. The see-through glass light guide plate according to claim 1, wherein each of the light guide points (2) has a maximum length or diameter greater than 10um and less than 30 um.
3. The see-through glass light guide plate of claim 1, wherein the distance between two adjacent light guide points (2) is greater than 20um and less than 100 um.
4. The see-through glass light guide plate of claim 1, wherein the light guide points (2) are arranged in an array on the glass substrate (1) in a linear array, an arc array, or a random arrangement.
5. The see-through glass light guide plate according to any of claims 1-4, wherein the glass substrate (1) is an ultra-white glass substrate.
6. A method for producing a see-through glass light guide plate, characterized in that a see-through glass light guide plate according to any one of claims 1 to 5 is produced, comprising the steps of:
the method comprises the following steps: plating a reflecting film and a shading film on one surface of a glass substrate (1); photoetching and dotting a light guide dot pattern on a mask plate;
step two: coating photoresist on the shading film;
step three: placing the mask plate on the photoresist, and developing and exposing;
step four: removing the unexposed colloid and the film layer;
step five: and (5) cleaning and drying.
7. The method for manufacturing a see-through glass light guide plate according to claim 6, wherein in the first step, the glass substrate (1) is cleaned, edged and polished before being coated with the reflective film and the light-shielding film.
8. The method as claimed in claim 6, wherein in the third step, a UV exposure method is used.
9. The method for producing a see-through glass light guide plate according to any of claims 6-8, wherein in the fourth step, the unexposed colloid and film layer are removed with an alkaline solution; and in the fifth step, cleaning and drying by using ultrasonic waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110248623.0A CN112987455B (en) | 2021-03-05 | 2021-03-05 | Perspective glass light guide plate and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110248623.0A CN112987455B (en) | 2021-03-05 | 2021-03-05 | Perspective glass light guide plate and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112987455A true CN112987455A (en) | 2021-06-18 |
| CN112987455B CN112987455B (en) | 2022-06-07 |
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| CN202110248623.0A Active CN112987455B (en) | 2021-03-05 | 2021-03-05 | Perspective glass light guide plate and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236791A (en) * | 2022-07-27 | 2022-10-25 | 广东绿展科技有限公司 | Light guide glass, composite light guide glass, preparation methods of light guide glass and composite light guide glass, and light guide glass device |
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| CN115236791A (en) * | 2022-07-27 | 2022-10-25 | 广东绿展科技有限公司 | Light guide glass, composite light guide glass, preparation methods of light guide glass and composite light guide glass, and light guide glass device |
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| Publication number | Publication date |
|---|---|
| CN112987455B (en) | 2022-06-07 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No.204, building 2, No.33, Wuqing South Road, Wuhou District, Chengdu, Sichuan 610041 Applicant after: Chengdu hengkun Fuai Photoelectric Technology Co.,Ltd. Address before: No.204, building 2, No.33, Wuqing South Road, Wuhou District, Chengdu, Sichuan 610041 Applicant before: Chengdu Fuai Photoelectric Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB02 | Change of applicant information |
Address after: 610041 China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan No. 777, Wulian 2nd Road, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu Applicant after: Chengdu hengkun Fuai Photoelectric Technology Co.,Ltd. Address before: No.204, building 2, No.33, Wuqing South Road, Wuhou District, Chengdu, Sichuan 610041 Applicant before: Chengdu hengkun Fuai Photoelectric Technology Co.,Ltd. |
|
| CB02 | Change of applicant information |