CN215895177U - Lens and polaroid positioning device - Google Patents
Lens and polaroid positioning device Download PDFInfo
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- CN215895177U CN215895177U CN202122416108.7U CN202122416108U CN215895177U CN 215895177 U CN215895177 U CN 215895177U CN 202122416108 U CN202122416108 U CN 202122416108U CN 215895177 U CN215895177 U CN 215895177U
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- polarizer
- lens
- dimming
- polaroid
- lens barrel
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Abstract
The embodiment of the utility model discloses a lens and a polaroid positioning device, wherein the lens is applied to the polaroid positioning device and comprises a dimming polaroid; the optical axis of the dimming polaroid is adjustable, and when the polaroid to be positioned is positioned, the optical axis of the dimming polaroid is intersected with the optical axis of the polaroid to be positioned. The technical scheme of the embodiment of the utility model can improve the positioning precision of the polarizer.
Description
Technical Field
The embodiment of the utility model relates to the technical field of liquid crystal display preparation, in particular to a lens and polarizer positioning device.
Background
The liquid crystal display panel generally includes an array substrate, a color filter substrate, and a liquid crystal layer located between the array substrate and the color filter substrate, wherein a lower polarizer is attached to a side of the array substrate away from the color filter substrate, and an upper polarizer is attached to a side of the color filter substrate away from the array substrate. With the development of display technology, the requirement for the lamination precision of the polarizer and the liquid crystal display panel is higher and higher.
In the prior art, a full-lamination process is usually used to attach the polarizer, and a photosensitive element such as a Charge-coupled Device (CCD) is used to position the polarizer in the full-lamination process. The positioning mode is that light penetrating through the polarizer reaches pixels of the CCD through the lens, each pixel generates charges with corresponding size according to the intensity of the light, the charges of each pixel are converted into black and white signals through binarization and other processing, and the position of the polarizer is determined through the arrangement of the black and white signals on each pixel.
However, in the full-lamination process, the polarizer is adhered to the white steel strip, glue overflow exists at the edge of the polarizer, the glue overflow can remain on the steel strip, after long-time transfer printing, the glue overflow can form a trace consistent with the appearance of the polarizer, the existing CCD working mode cannot distinguish the residual trace on the steel strip from the real edge of the polarizer, and the positioning deviation occurs, so that a lens and a polarizer positioning device with accurate positioning are urgently needed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a lens and a polarizer positioning device, which are used for improving the positioning precision of a polarizer.
In a first aspect, an embodiment of the present invention provides a lens, which is applied to a polarizer positioning device; the lens barrel includes: a dimming polarizer;
the optical axis of the dimming polaroid is adjustable, and when the polaroid to be positioned is positioned, the optical axis of the dimming polaroid is intersected with the optical axis of the polaroid to be positioned.
Optionally, the lens further includes a rotatable polarizing axis adjusting aperture, and the dimming polarizer is fixed in the polarizing axis adjusting aperture.
Optionally, the lens barrel further comprises a lens.
Optionally, the lens further comprises a focal length adjusting device.
Optionally, the dimming polarizer is located on one side of the lens, which is far away from the light incident surface of the lens.
Optionally, the dimming polarizer is located on one side of the lens close to the light incident surface of the lens.
Optionally, a light source is integrated in the lens.
Optionally, the lens further includes a light intensity adjusting device electrically connected to the light source.
In a second aspect, an embodiment of the present invention further provides a polarizer positioning apparatus, including a photosensitive module and the lens provided in the first aspect;
the photosensitive module comprises photosensitive elements arranged in an array;
the light beam sequentially passes through the polaroid to be positioned and the lens and then is incident on the light sensing module.
Optionally, a light source is integrated in the lens;
the polarizer positioning device further comprises a reflector arranged on one side of the lens far away from the photosensitive module.
In the embodiment of the utility model, the dimming polaroid is arranged in the lens, and when the polaroid is positioned, the optical axis of the dimming polaroid is intersected with the optical axis of the polaroid to be positioned, so that compared with the prior art, the light transmittance of the area corresponding to the polaroid to be positioned can be further reduced, the light intensity received by the photosensitive element in the area corresponding to the polaroid to be positioned is further reduced, the light intensity contrast between the area where the polaroid to be positioned is located and the surrounding environment is improved, and the purpose of improving the positioning precision is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a lens provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a polarizer positioning device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an operation of a polarizer positioning apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another lens provided in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of another lens provided in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another polarizer positioning device according to an embodiment of the present invention.
Reference numerals:
10-a lens; 11-a dimming polarizer; 110-polarizing axis adjusting aperture; 12-a lens; 13-focal length adjustment means; 14-light intensity adjusting means; 20-a photosensitive module; 30-a mirror; 200-polarizer to be positioned.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a lens 10, which is applicable to a polarizer positioning device for positioning a polarizer in a full-lamination process. As shown in fig. 1, the lens 10 includes a dimming polarizer 11, an optical axis of the dimming polarizer 11 is adjustable, and when the polarizer to be positioned is positioned, the optical axis of the dimming polarizer 11 intersects with the optical axis of the polarizer to be positioned. When the lens 10 provided by the embodiment of the utility model is applied to a polarizer positioning device, the positioning accuracy can be improved, and the working principle of the lens is explained by combining the polarizer positioning device.
Fig. 2 is a schematic structural diagram of a polarizer positioning device according to an embodiment of the present invention, and referring to fig. 2, the polarizer positioning device according to the embodiment of the present invention includes a photosensitive module 20 and a lens 10 according to the embodiment of the present invention; the photosensitive module 20 includes photosensitive elements arranged in an array; the light beam sequentially passes through the polarizer 200 to be positioned and the lens 10, and then is incident on the photosensitive module 20.
In this embodiment, a light source may be disposed on a side of the lens 10 away from the photosensitive module 20 for lighting the field of view V. When the polarizer is positioned, the polarizer 200 to be positioned is placed between the light source and the lens 10, so that light emitted from the light source sequentially passes through the polarizer 200 to be positioned and the lens 10 and then is incident on the photosensitive element in the photosensitive module 20. Optionally, the photosensitive element is a photosensitive coupling element (CCD), and the CCD may convert the optical signal into an electrical signal, and may further determine the position of the polarizer 200 to be positioned through data processing.
In the prior art, natural light emitted by a light source passes through the polarizer 200 to be positioned and then becomes polarized light, and compared with light passing through the rest positions (i.e., the region Q) in the field of view V, the light intensity of the region corresponding to the polarizer 200 to be positioned is attenuated, so that the light intensity received by the photosensitive element in the region corresponding to the polarizer 200 to be positioned is slightly less than that of the photosensitive element corresponding to the region Q, and the polarizer 200 to be positioned can be positioned according to the data processing method described in the background art. However, since the difference between the light intensity of the area where the polarizer 200 to be positioned is located and the light intensity of the surrounding environment (area Q) is small, the polarizer is easily affected by other factors (such as residual glue marks described in the background art), and thus the positioning is deviated.
In order to solve the problem, the dimming polarizer 11 is additionally arranged in the lens 10 provided in the embodiment of the present invention, and when the polarizer is positioned, the optical axis of the dimming polarizer 11 may be adjusted to intersect with the optical axis of the polarizer 200 to be positioned, so that the light transmittance of the region corresponding to the polarizer 200 to be positioned may be further reduced, and thus the light intensity received by the photosensitive element in the region corresponding to the polarizer 200 to be positioned may be further reduced. Although the light passing through the region Q in the field V is also attenuated when passing through the dimming polarizer 11, compared with the light intensity attenuation degree caused by the intersection of the optical axes of the to-be-positioned polarizer 200 and the dimming polarizer 11, the light intensity attenuation degree is much smaller, so that the technical scheme of the embodiment of the utility model can improve the light intensity contrast between the region where the to-be-positioned polarizer 200 is located and the surrounding environment, and the charge sizes generated by the photosensitive elements at different positions according to the light intensity are obviously different, so that the accuracy in the binarization processing is improved, and the purpose of improving the positioning accuracy can be achieved.
It can be understood that the larger the deflection angle between the optical axis of the dimming polarizer 11 and the optical axis of the polarizer 200 to be positioned is, the lower the light transmittance is, the smaller the light intensity received by the photosensitive element in the region corresponding to the polarizer 200 to be positioned is, the more obvious the light intensity contrast with the surrounding environment is, and the higher the positioning accuracy is.
In a specific embodiment, the optical axis of the dimming polarizer 11 may be orthogonal to the optical axis of the polarizer 200 to be positioned when the polarizer is positioned. At this time, the light transmittance of the area corresponding to the polarizer 200 to be positioned is 0, and the light intensity received by the corresponding photosensitive element is 0, so that the light intensity is completely distinguished from the light intensity of the surrounding environment, and the positioning accuracy can be greatly improved.
For example, fig. 3 is a schematic diagram illustrating an operation principle of a polarizer positioning device according to an embodiment of the present invention; as shown in fig. 3, the natural light becomes polarized light after passing through the polarizer 200 to be positioned, and the optical axis of the dimming polarizer 11 in fig. 3 is orthogonal to the optical axis of the polarizer 200 to be positioned, so that the polarized light in the area corresponding to the polarizer 200 to be positioned does not have light to be emitted after passing through the lens 10, the light intensity received by the corresponding photosensitive element is 0, the natural light penetrating through the area Q in the viewing field V becomes polarized light after passing through the dimming polarizer 11, and the light intensity received by the corresponding photosensitive element is not 0, therefore, the light intensity received by the photosensitive element in the area corresponding to the polarizer 200 to be positioned clearly contrasts with the light intensity of the surrounding environment, and thus the positioning accuracy can be improved.
According to the lens and the polarizer positioning device comprising the lens, the dimming polarizer is additionally arranged in the lens, and when the polarizer is positioned, the optical axis of the dimming polarizer is intersected with the optical axis of the polarizer to be positioned.
On the basis of the above-described embodiment, the structure of the lens 10 will be described in further detail below.
Referring to fig. 3, the optional lens 10 further includes a rotatable polarizing axis adjusting aperture 110, and the dimming polarizer 11 is fixed in the polarizing axis adjusting aperture 110. Thus, by rotating the polarizing axis adjusting aperture 110, the optical axis of the dimming polarizer 11 can be adjusted, and the adjustment method is simple.
Referring to fig. 1, the alternative lens 10 also includes a lens 12. Illustratively, the lens 12 may be a convex lens for converging the light transmitted through the field of view V into the photosensitive module 20.
Referring to fig. 1, the alternative lens 10 further includes a focus adjustment device 13. The distance between the lens 12 and the photosensitive module 20 can be adjusted by setting the focal length adjusting device 13, so as to adjust the size of the field of view V.
In addition, the position of the light-adjusting polarization sheet 11 in the lens 10 is not particularly limited in the embodiment of the present invention. As shown in fig. 1, the optional dimming polarizer 11 is located on a side of the lens 12 away from the light incident surface of the lens 10. Fig. 4 is a schematic structural diagram of another lens provided in an embodiment of the utility model, and as shown in fig. 4, in another embodiment, the optional dimming polarizer 11 is located on a side of the lens 12 close to the light incident surface of the lens 10.
Optionally, a light source is integrated in the lens 10, so that the light source in the lens 10 can be used to illuminate the field of view V, thereby improving the integration level of the device. Fig. 5 is a schematic structural diagram of another lens provided in an embodiment of the present invention, referring to fig. 5, when a light source is integrated in the lens 10, the optional lens 10 further includes a light intensity adjusting device 14, and the light intensity adjusting device 14 is electrically connected to the light source. Therefore, the intensity of the light beam emitted by the light source can be adjusted to adapt to different light intensity requirements.
Correspondingly, fig. 6 is a schematic structural diagram of another polarizer positioning device according to an embodiment of the present invention, and referring to fig. 6, when a light source is integrated in the lens 10, the optional polarizer positioning device further includes a reflector 30 disposed on a side of the lens 10 away from the photosensitive module 20. Therefore, the polarized light passing through the polarizer 200 to be positioned can be reflected to the polarizer 200 to be positioned again by the reflector 30, and then is incident to the photosensitive module 20 through the lens 10, so as to realize the positioning of the polarizer 200 to be positioned.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A lens is applied to a polaroid positioning device; it is characterized by comprising: a dimming polarizer;
the optical axis of the dimming polaroid is adjustable, and when the polaroid to be positioned is positioned, the optical axis of the dimming polaroid is intersected with the optical axis of the polaroid to be positioned.
2. The lens barrel according to claim 1, further comprising a rotatable polarizing axis adjusting aperture, wherein the dimming polarizer is fixed inside the polarizing axis adjusting aperture.
3. The lens barrel as claimed in claim 1, further comprising a lens.
4. A lens barrel according to claim 3, characterized in that the lens barrel further comprises a focal length adjusting means.
5. The lens barrel as claimed in claim 3, wherein the dimming polarizer is located on a side of the lens away from the light incident surface of the lens barrel.
6. The lens barrel as claimed in claim 3, wherein the dimming polarizer is located on a side of the lens barrel adjacent to the light incident surface of the lens barrel.
7. The lens barrel as recited in claim 1, wherein a light source is integrated within the lens barrel.
8. The lens barrel as claimed in claim 7, further comprising a light intensity adjusting device electrically connected to the light source.
9. A polarizer positioning device, comprising a photosensitive module and the lens barrel of any one of claims 1 to 8;
the photosensitive module comprises photosensitive elements arranged in an array;
and the light beam sequentially passes through the polaroid to be positioned and the lens and then is incident on the photosensitive module.
10. The polarizer positioning device of claim 9, wherein a light source is integrated into the lens;
the polarizer positioning device further comprises a reflector arranged on one side of the lens, which is far away from the photosensitive module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122416108.7U CN215895177U (en) | 2021-10-08 | 2021-10-08 | Lens and polaroid positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122416108.7U CN215895177U (en) | 2021-10-08 | 2021-10-08 | Lens and polaroid positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215895177U true CN215895177U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122416108.7U Active CN215895177U (en) | 2021-10-08 | 2021-10-08 | Lens and polaroid positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215895177U (en) |
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2021
- 2021-10-08 CN CN202122416108.7U patent/CN215895177U/en active Active
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