CN218885379U

CN218885379U - Polaroid detection device

Info

Publication number: CN218885379U
Application number: CN202223591767.5U
Authority: CN
Inventors: 薛晓贤; 霍丙忠; 黄邓军; 徐培聪
Original assignee: Shenzhen Sunnypol Optoelectronics Co ltd
Current assignee: Shenzhen Sunnypol Optoelectronics Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-18
Anticipated expiration: 2032-12-30

Abstract

The application relates to the technical field of polaroid detection, and discloses a polaroid detection device, include: the environment box comprises a base and an upper cover which are detachably connected, a detection space is enclosed by the base and the upper cover, and the polaroid is placed in the detection space; the illumination mechanism is arranged in the detection space or outside the detection space and is used for providing incident light to the polaroid; and the photographing mechanism is connected to the upper cover and is used for acquiring an image formed by reflected or transmitted light after the incident light enters the polaroid. The application provides a polaroid detection device accessible is built the environment case by oneself and is detected required environment in order to provide the polaroid, need not specific darkroom, and dismouting, removal are convenient, and area is little. In addition, the image formed by reflected or transmitted light after incident to the polaroid of incident light that the mechanism of shining that can shoot through the mechanism of shooing in the environment case, need not professional analytical instrument and carry out the analysis to the optical property of polaroid, device simple structure builds conveniently.

Description

Polaroid detection device

Technical Field

The application relates to a polaroid detects technical field, especially relates to a polaroid detection device.

Background

With the popularization of liquid crystal displays, polarizers are used as necessary components for imaging of display modules in the liquid crystal displays, and the application fields are more and more extensive. When evaluating the performance of the polarizer, the performance of the polarizer before and after the weather resistance test needs to be evaluated. Currently, the evaluation is mainly carried out through artificial visual inspection, camera shooting in a darkroom or through the change conditions of optical index parameters before and after weather-resistant experiments. The difference between different batches of samples cannot be evaluated by artificial visual inspection; the shooting by using the camera needs to be carried out in a darkroom, so that the environmental limit is large; the optical index parameters are obtained after the polarizer is detected by a professional analysis instrument (such as an ultraviolet spectrophotometer) and only the optical performance of the local position of the polarizer can be evaluated, the change condition of the optical performance of the polarizer cannot be evaluated visually and integrally, and the evaluation method is complex, tedious and expensive and has great limitation.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a polarizer detection apparatus, so as to solve the problems of the prior art, such as high environmental requirement, or requiring professional instruments, complex and expensive evaluation, and incomplete evaluation when testing the performance of a polarizer.

The embodiment of the application provides a polaroid detection device for detect the optical property of polaroid, polaroid detection device includes:

the environment box comprises a base and an upper cover which are detachably connected, a detection space is enclosed by the base and the upper cover, and the polaroid is placed in the detection space;

the illumination mechanism is arranged in the detection space or outside the detection space and is used for providing incident light to the polaroid;

and the photographing mechanism is connected to the upper cover and is used for acquiring an image formed by reflected or transmitted light after the incident light enters the polaroid.

In one embodiment, the photographing mechanism and the illumination mechanism are disposed at two opposite sides of the polarizer, and the photographing mechanism is configured to collect an image formed by light transmitted after the incident light is incident on the polarizer;

or the photographing mechanism and the illumination mechanism are arranged at the same side of the polaroid, and the photographing mechanism is used for collecting images formed by the incident light incident to the polaroid and reflected light.

In an embodiment, the polarizer detection apparatus further includes a light shielding mechanism disposed in the environmental chamber, the light shielding mechanism includes at least one light hole, and a portion of the incident light is incident to the polarizer through the light hole.

In an embodiment, the base is provided with a containing groove, the illumination mechanism comprises a backlight plate, and the backlight plate is contained in the containing groove;

the light shading mechanism comprises a light shading plate, the light shading plate is located above the backlight plate and located at the notch of the containing groove, a plurality of light through holes are formed in the light shading plate, and the polaroid is placed on one side, deviating from the backlight plate, of the light shading plate and shelters from the light through holes.

In an embodiment, the illumination mechanism further includes a first support member, the light-shielding mechanism further includes a second support member, the first support member and the second support member are both fixedly connected to a groove wall of the accommodating groove, the second support member is stacked on the first support member and encloses a fixing space with the first support member, the backlight plate is accommodated in the fixing space, and the light shielding plate is disposed on a side of the second support member away from the base.

In one embodiment, the upper cover is movably connected to the base along a first direction to adjust a distance between the photographing mechanism and the polarizer, and the first direction is an arrangement direction of the upper cover and the base.

In an embodiment, the environmental chamber further includes a plurality of support rods, the support rods are detachably disposed on the base and extend along the first direction, and the upper cover is slidably connected to the support rods.

In one embodiment, the support rods comprise a first support rod and a second support rod which are connected, a gap is arranged between the first support rod and the second support rod, and the upper cover is movably inserted into the gap;

the environment box further comprises a limiting piece, and the limiting piece is sleeved on the supporting rod and can be abutted to the upper cover.

In one embodiment, the polarizer detection device further comprises a plurality of rolling blinds, each rolling blind comprises a support and a rolling cloth which are connected, the support is fixedly connected to the upper cover, the rolling cloth can be wound and unwound relative to the support, and one side of the rolling cloth, which faces the illumination mechanism, is black;

when a preset distance is reserved between the upper cover and the base, the rolling cloth is unfolded relative to the support and extends to the base along the first direction.

In an embodiment, the upper cover is provided with a through hole, the photographing mechanism includes a camera, a beam splitter and a eyepiece, the beam splitter is disposed above the through hole, the camera and the eyepiece are disposed on a side of the beam splitter away from the base, the beam splitter is used for uniformly splitting light emitted from the polarizer into two beams, one beam of light is incident on the camera, and the other beam of light is incident on the eyepiece.

The utility model provides a polaroid detection device includes environment case, illumination mechanism and the mechanism of shooing, because environment case is including dismantling the base and the upper cover of connection, the darkroom can be regarded as to the detection space that base and upper cover enclose, then the accessible is built environment case by oneself in order to provide the polaroid and detect required environment, need not specific darkroom, dismouting, removal convenience, area is little, reduce cost. In addition, can shoot the image that the incident light that the mechanism of shining provided incides the polaroid back reflection or the light formation of transmission through the mechanism of shooing in the environment case, need not professional analytical instrument and carry out the analysis to the optical properties of polaroid, device simple structure builds conveniently to it is high to the environmental requirement when solving prior art test polaroid performance, or need professional instrument, the complicated loaded down with trivial details of aassessment, expensive, the incomplete problem of aassessment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of a polarizer inspection apparatus according to an embodiment of the present disclosure;

FIG. 2 is a perspective view of the polarizer inspection apparatus shown in FIG. 1 from another angle;

FIG. 3 is an exploded perspective view of the polarizer inspection apparatus shown in FIG. 2;

FIG. 4 is a schematic exploded perspective view of a base, a light shielding mechanism and an illumination mechanism of the polarizer detection apparatus shown in FIG. 3;

FIG. 5 is a schematic perspective view of a support rod in the polarizer inspection apparatus shown in FIG. 3.

The designations in the figures mean:

100. a polarizer detection device;

10. an environmental chamber; 101. detecting a space; 11. a base; 12. an upper cover; 13. a through hole; 14. a containing groove; 15. a support bar; 151. a first support bar; 152. a second support bar; 153. a gap;

20. an illumination mechanism; 21. a backlight plate; 22. a first support member; 221. a first vertical support sheet; 222. a first horizontal support tab;

30. a photographing mechanism; 31. a camera; 32. a sight glass;

40. a light-shielding mechanism; 41. a light-transmitting hole; 42. a visor; 43. a second support member; 431. a second vertical support sheet; 432. a second horizontal support sheet;

50. a limiting member; 51. a snap ring; 52. adjusting a knob;

60. rolling a curtain; 61. a support; 62. rolling cloth; 63. and (5) fixing the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, which are examples. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In order to explain the technical solutions described in the present application, the following description is made with reference to specific drawings and examples.

The embodiment of the application provides a simple and convenient polaroid detection device for detecting the optical performance of a polaroid.

Referring to FIGS. 1 and 2, in one embodiment of the present application, a polarizer testing apparatus 100 includes an environmental chamber 10, a lighting mechanism 20, and a photographing mechanism 30.

The environmental chamber 10 includes a base 11 and an upper cover 12 detachably connected, the base 11 and the upper cover 12 enclose a detection space 101, and the polarizer is disposed in the detection space 101. An illumination mechanism 20 is disposed in the inspection space 101, and the illumination mechanism 20 is used for providing incident light to the polarizer. The photographing mechanism 30 is connected to the upper cover 12, and the photographing mechanism 30 is used for collecting an image formed by light reflected or projected after incident light enters the polarizer.

It can be understood that the detection space 101 enclosed by the base 11 and the cover 12 is used as a dark room, which can shield external light and avoid the interference of the external light to the optical performance detection process of the polarizer. The environmental chamber 10 is not limited in size, and in the present embodiment, the environmental chamber 10 is a rectangular parallelepiped, it is understood that in other embodiments of the present application, the shape of the environmental chamber 10 may be other shapes, such as a cube, a truncated cone, a cylinder, a triangle, etc., which are not limited herein.

It should be understood that, in other embodiments of the present application, the illumination mechanism 20 may also be disposed outside the detection space 101, and in this case, only a portion of the environmental chamber 10 needs to be a transparent structure, and it is ensured that the incident light provided by the illumination mechanism 20 can pass through the transparent structure to enter the polarizer, which is not limited herein.

Above-mentioned polaroid detection device 100 includes environment case 10, illumination mechanism 20 and the mechanism 30 of shooing, because environment case 10 is including dismantling the base 11 and the upper cover 12 of connection, the detection space 101 that base 11 and upper cover 12 enclose can regard as the darkroom, then the accessible builds environment case 10 by oneself in order to provide the polaroid and detects required environment, need not specific darkroom, dismouting, removal convenience, area is little, reduce cost. In addition, can shoot the image that the incident light that illumination mechanism 20 provided incides the polaroid back reflection or transmission light formed through mechanism 30 of shooing in environment case 10, need not professional analytical instrument and carry out the analysis to the optical property of polaroid, device simple structure builds conveniently to require the environment height, or need professional instrument, assess complicacy loaded down with trivial details, expensive, assess incomprehensible problem when solving prior art test polaroid performance.

Referring to fig. 2 and 3, the photographing mechanism 30 is disposed on the top of the upper cover 12, so that a user can conveniently operate the photographing mechanism 30 to collect an image of the polarizer. The photographing mechanism 30 includes a camera 31, a beam splitter and a visual lens 32, the beam splitter is used for uniformly splitting the light emitted from the polarizer into two beams, one beam of light is incident on the camera 31, and the other beam of light is incident on the visual lens 32. The sight glass 32 is used to distinguish whether the actual image formed by the light emitted from the polarizer is consistent with the image captured by the camera 31, and if a difference is generated, the image captured by the camera 31 is consistent with the image seen by naked eyes by adjusting the parameters of the camera 31.

The camera 31 may be a CCD (Charge coupled Device) camera or a general camera. The CCD camera can be directly connected with a computer host to facilitate the storage and the check of the polaroid image.

In this embodiment, the through hole 13 is opened in the upper cover 12, the spectroscope is disposed above the through hole 13, the spectroscope can collect light passing through the through hole 13, and the camera 31 and the visual mirror 32 are disposed on a side of the spectroscope away from the base 11. The camera 31 collects images formed by light emitted by the polaroid, and is simple in structure and convenient to assemble. It is understood that, in other embodiments of the present application, the photographing mechanism 30 may also include a plurality of cameras 31, and correspondingly, the number of the through holes 13 is also plural. The cameras 31 are located at the top of the upper cover 12 and are evenly distributed at intervals, and each camera 31 realizes multi-angle and multi-direction comprehensive image taking of the polarizer through the corresponding through hole 13.

In addition, the material used for the environmental chamber 10 has no particular requirement, and may be a metal plate, a metal rod, a light shielding cloth, a plastic plate, or the like; the fixing mode of the environmental box 10 has no specific requirements, and the fixed connection can be realized through rivets, glue, ribbons and the like; the interior material of the environmental chamber 10 is required to be completely light-absorbing, and may be a matte black coating, a matte black plating layer, a matte black cloth, or the like, which is not limited herein.

Referring to fig. 1 and 2, in an embodiment of the present disclosure, the polarizer inspection apparatus 100 further includes a light-shielding mechanism 40 disposed in the environmental chamber 10, where the light-shielding mechanism 40 includes at least one light-passing hole 41, and a portion of incident light enters the polarizer through the light-passing hole 41. Therefore, the light shielding mechanism 40 can shield the light emitted from the illumination mechanism 20 and not required for testing, thereby improving the accuracy of the polarizer test result.

In the present embodiment, the illuminating mechanism 20 is located below the polarizer, and the light-shielding mechanism 40 is located between the illuminating mechanism 20 and the polarizer, that is, the light-shielding mechanism 40 is also located below the polarizer, and the light-passing hole 41 formed on the light-shielding mechanism 40 can provide light for the polarizer to be tested. It is understood that the polarizer to be tested should correspond to the clear aperture 41. That is, the photographing mechanism 30 and the illuminating mechanism 20 are disposed on opposite sides of the polarizer, and the photographing mechanism 30 is configured to capture an image formed by light transmitted after incident light is incident on the polarizer, that is, under the mechanism setting condition, the image photographed by the camera 31 is an image formed by light transmitted after incident light provided by the illuminating mechanism 20 is incident on the polarizer through the light transmitting hole 41.

It is understood that in other embodiments of the present application, the illumination mechanism 20 may further include a top light, which is located above the polarizer and also provides the polarizer with light required for testing. That is, the photographing mechanism 30 and the illuminating mechanism 20 are disposed on the same side of the polarizer, and the photographing mechanism 30 is configured to collect an image formed by light reflected after incident light is incident on the polarizer, that is, under the mechanism setting condition, the image photographed by the camera 31 is an image formed by light reflected after incident light provided by the illuminating mechanism 20 is directly incident on the polarizer.

Referring to fig. 1, fig. 2 and fig. 4, in an embodiment of the present disclosure, a receiving groove 14 is disposed on the base 11, the illumination mechanism 20 includes a backlight plate 21, and the backlight plate 21 is received in the receiving groove 14; the light shielding mechanism 40 includes a light shielding plate 42, the light shielding plate 42 is located above the backlight plate 21 and located at the notch of the accommodating groove 14, a plurality of light through holes 41 are formed in the light shielding plate 42, and the polarizer is placed on one side of the light shielding plate 42 departing from the backlight plate 21 and shields the light through holes 41. Thus, the backlight plate 21 is accommodated in the accommodating slot 14, and since the light shielding plate 42 is located at the slot opening of the accommodating slot 14, the light shielding plate 42 can shield part of the light emitted by the backlight plate 21, and only the light of the backlight plate 21 is emitted through the light through hole 41, thereby ensuring the controllability of the range of the light incident to the polarizer.

The number of the light holes 41 on the light shielding plate 42 is plural, and the number of the corresponding polarizer to be tested is plural, and each polarizer completely blocks one of the light holes 41. It can be understood that when the number of the polarizers to be tested is less than the number of the light through holes 41 on the light shielding plate 42, the light through holes 41 at other positions need to be blocked by opaque materials, and the brightness of the backlight plate 21 is adjusted to be appropriate, so that the light transmitted through the polarizers can reflect the optical characteristics of the polarizers themselves, and the images can be directly photographed and recorded by the photographing mechanism 30.

It is understood that in other embodiments of the present application, the size of the polarizer may be other, and accordingly, different light shielding plates 42 may be replaced to make the through holes on the light shielding plates 42 meet the test requirements.

It is understood that the illumination mechanism 20 may also be an OLED (Organic Light-Emitting Diode) Light bar, an OLED Light panel, an LED (Light-Emitting Diode) Light bar, an LED bulb, an LED Light panel, and the like, which are not limited herein. The illumination mechanism 20 needs to provide illumination with uniform brightness, and needs to meet the requirement that the brightness of the light source can be adjusted, and can be adjusted in various ways such as driving current adjustment, silicon controlled phase cut, pulse width modulation and the like. The light source may be a standard white light source, or may be other types of light sources, which is not limited herein.

Referring to fig. 1, fig. 2 and fig. 4, in an embodiment of the present application, the illumination mechanism 20 further includes a first supporting member 22, the light shielding mechanism 40 further includes a second supporting member 43, the first supporting member 22 and the second supporting member 43 are both fixedly connected to a groove wall of the accommodating groove 14, the second supporting member 43 is stacked on the first supporting member 22 and encloses a fixing space with the first supporting member 22, the backlight plate 21 is accommodated in the fixing space, and the light shielding plate 42 is disposed on a side of the second supporting member 43 departing from the base 11. Therefore, a certain distance is reserved between the backlight plate 21 and the shading plate 42, that is, the backlight plate 21 is separated from the polarizer, so that the backlight plate 21 can be prevented from being scratched when different polarizer samples to be tested are frequently switched, and the service life of the backlight plate 21 is prolonged.

Specifically, the first support 22 includes four first support portions, each of the first support portions is L-shaped, and each of the first support portions includes a first vertical support piece 221 and a first horizontal support piece 222 that are vertically connected, and the first support portions are detachably connected to the groove wall of the accommodating groove 14 through screws by the first vertical support piece 221. The second support 43 includes four second support portions, each of which is L-shaped, each of which includes a second vertical support piece 431 and a second horizontal support piece 432 that are vertically connected, and the second support portion 1 is detachably connected to the groove wall of the accommodating groove 14 through the second vertical support piece 431 by screws.

The first horizontal support sheet 222, the second vertical support sheet 431 and the second horizontal support sheet 432 together enclose a fixing space to accommodate the backlight panel 21. The light screen 42 is horizontally disposed on a side of the second horizontal support piece 432 facing away from the fixing space.

It is understood that in other embodiments of the present application, the polarizer may be located at other positions within the detection space 101. For example, the polarizer detection mechanism may further include a carrying mechanism, the carrying mechanism is mainly used for placing a polarizer sample for use, and the position fixing function may be achieved by adding the bracket 61, adding the baffle, adding the slot, adding the automatic sheet placing device, and the like. Wherein, the loading mechanism needs to separate the polarizer sample from the illumination mechanism 20, so as to prevent the polarizer sample from being frequently switched to scratch the illumination mechanism 20.

It is understood that the light entering the polarizer is divided into an ordinary ray and an extraordinary ray, and the propagation direction and the refractive index thereof are different. When the incident angle of the incident light increases, the traveling paths of the extraordinary ray and the ordinary ray increase, and more delay occurs. Therefore, the polarized light coming out of the polarizer enters the photographing mechanism 30 from different angles, which causes chromatic aberration, resulting in some error in the obtained test result. In order to solve such problems, the distance between the polarizer and the photographing mechanism 30 may be increased, and the influence of the included angle between the emergent light penetrating through the polarizer and the photographing mechanism 30 on the test result may be reduced. For example, the height of the environmental chamber 10 is adjustable, and the distance between the photographing mechanism 30 and the polarizer can be adjusted by adjusting the height of the upper cover 12 to reduce the included angle between the emitted light of the polarizer and the photographing mechanism 30, so as to adjust the difference between the ordinary light and the extraordinary light emitted from the polarizer to reduce the influence of the angle on the photographing effect. Referring to fig. 1 and 2, in one embodiment of the present application, the cover 12 is movably connected to the base 11 along a first direction (shown as X direction) to adjust a distance between the photographing mechanism 30 and the polarizer, wherein the first direction is an arrangement direction of the cover 12 and the base 11.

Referring to fig. 1 and 2, in the present embodiment, the environmental chamber 10 further includes a plurality of support rods 15, the support rods 15 are detachably disposed on the base 11 and extend along a first direction, and the upper cover 12 is slidably connected to the support rods 15. Therefore, the moving distance of the upper cover 12 can be accurately regulated, so that the accuracy of regulating the distance between the photographing mechanism 30 and the polarizer is realized, and the photographing effect of the photographing mechanism 30 at different distances can be conveniently tested.

Specifically, the environmental chamber 10 includes four support rods 15, and evenly distributed around the base 11, so as to improve the stability of the moving process of the upper cover 12. In addition, each support rod 15 is provided with a scale, so that the position of the upper cover 12 can be conveniently adjusted in the moving process.

In addition, referring to fig. 1 to 3 and 5, in the present embodiment, the supporting rod 15 includes a first supporting rod 151 and a second supporting rod 152 connected to each other, a gap 153 is disposed between the first supporting rod 151 and the second supporting rod 152, and the upper cover 12 is movably inserted into the gap 153.

In order to stop the upper cover 12 and fix the upper cover 12 at a proper height, the environmental chamber 10 further includes a limiting member 50, and the limiting member 50 is sleeved on the supporting rod 15 and can abut against the upper cover 12.

Specifically, the first supporting rod 151 and the second supporting rod 152 are both fan-shaped columns, the gap 153 is formed between the adjacent surfaces of the first supporting rod 151 and the second supporting rod 152, and is L-shaped, and then each sidewall bending part of the upper cover 12 can be inserted into the corresponding gap 153, so as to realize the sliding connection to the supporting rod 15 along the first direction.

Referring to fig. 1 to 3, the limiting member 50 includes a clamping ring 51 and an adjusting knob 52, the clamping ring 51 is sleeved on the support rod 15, the clamping ring 51 is provided with a screw hole, one end of the adjusting knob 52 can be inserted into the screw hole and abuts against the support rod 15, so that the clamping ring 51 is fixed, the upper cover 12 abuts against the side wall of the clamping ring 51, the adjusting mode is simple, and the operation is simple.

It is understood that in other embodiments of the present application, the supporting rod 15 can be omitted, and the upper cover 12 can be disposed on a liftable base to adjust the distance between the upper cover and the base 11, so as to change the distance between the photographing mechanism 30 and the polarizer, but not limited thereto.

Referring to fig. 1 to 3, in an embodiment of the present application, polarizer inspection apparatus 100 further includes a plurality of roller blinds 60, where roller blinds 60 include a bracket 61 and a rolling cloth 62 connected to each other, bracket 61 is fixedly connected to upper cover 12, and rolling cloth 62 can be wound and unwound with respect to bracket 61; when the upper cover 12 is spaced apart from the base 11 by a predetermined distance, the roll cloth 62 is unwound from the bracket 61 and extends to the base 11 along the first direction. Thus, when the upper cover 12 and the base 11 have a predetermined distance therebetween, the roll cloth 62 can prevent external light from entering the detection space 101.

Specifically, the top cover 12 includes four connected sidewalls, and the polarizer testing mechanism includes four roller shutters 60 respectively disposed on the four sidewalls to ensure the normal use of the darkroom in the environmental chamber 10. In addition, each rolling screen 60 further comprises a fixing rod 63 disposed at an end of the rolling cloth 62, and a screw is disposed on the fixing rod 63 and can be in threaded connection with a groove wall of the accommodating groove 14 on the base 11, so as to fix the rolling cloth 62.

In this embodiment, the side of the roll 62 facing the light mechanism 20 is black to ensure that the roll 62 is completely light absorbing.

It is understood that the roll 62 itself may be a black roll, or the roll 62 may be provided with a black light absorbing coating, without limitation.

The polarizer detection device 100 comprises an environment box 10, an illumination mechanism 20 and a photographing mechanism 30, wherein the environment box 10 comprises a base 11 and an upper cover 12 which are detachably connected, and a detection space 101 enclosed by the base 11 and the upper cover 12 can be used as a darkroom, so that the environment box 10 can be automatically built to provide an environment required by polarizer detection so as to photograph the polarizer, and the differences of optical properties of different materials are compared under the condition that other conditions are consistent. In addition, the polarizer inspection apparatus 100 can be designed according to different requirements, and has high flexibility. Because the polaroid detection device 100 has the characteristics of simplicity and convenience, the evaluation on the performance of the polaroid can be finished without a darkroom environment or a specific professional analysis instrument, and the polaroid detection device has the advantages of simplicity in construction, no limitation of used materials, portability, detachability, strong designability, small occupied area and the like.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. A polarizer inspection apparatus for inspecting optical properties of a polarizer, the polarizer inspection apparatus comprising:

2. The polarizer inspection device of claim 1, wherein the photographing mechanism and the illumination mechanism are disposed on opposite sides of the polarizer, the photographing mechanism configured to collect an image formed by light transmitted after the incident light is incident on the polarizer;

3. The polarizer inspection device of claim 1, further comprising a light-shielding mechanism disposed in the environmental chamber, wherein the light-shielding mechanism comprises at least one light-transmitting hole, and a portion of the incident light is incident on the polarizer through the light-transmitting hole.

4. The polarizer inspection device of claim 3, wherein the base has a receiving slot, and the illumination mechanism comprises a backlight plate received in the receiving slot;

the light shading mechanism comprises a light shading plate, the light shading plate is located above the backlight plate and located at the notch of the containing groove, a plurality of light through holes are formed in the light shading plate, and the polaroid is placed in the light shading plate deviates from one side of the backlight plate and is shielded by the light through holes.

5. The polarizer detection device of claim 4, wherein the illumination mechanism further comprises a first support member, the light-shielding mechanism further comprises a second support member, the first support member and the second support member are both fixedly connected to a wall of the accommodating groove, the second support member is stacked on the first support member and encloses a fixing space with the first support member, the backlight plate is accommodated in the fixing space, and the light shielding plate is disposed on a side of the second support member away from the base.

6. The polarizer inspection device of any of claims 1 to 5, wherein the cover is movably attached to the base in a first direction to adjust the distance between the photographing mechanism and the polarizer, the first direction being the direction in which the cover and the base are arranged.

7. The polarizer testing device of claim 6, wherein the environmental box further comprises a plurality of support rods detachably disposed on the base and extending along the first direction, and the top cover is slidably connected to the support rods.

8. The polarizer detection device of claim 7, wherein the support rods comprise a first support rod and a second support rod connected to each other, a gap is formed between the first support rod and the second support rod, and the upper cover is movably inserted into the gap;

9. The polarizer inspection device of claim 6, further comprising a plurality of roll blinds, wherein the roll blinds comprise a bracket and a roll cloth connected to each other, the bracket is fixedly connected to the upper cover, the roll cloth can be wound and unwound with respect to the bracket, and the side of the roll cloth facing the illumination mechanism is black;

10. The polarizer detection device according to any of claims 1 to 5, wherein the upper cover is provided with a through hole, the photographing mechanism comprises a camera, a beam splitter and a sight glass, the beam splitter is disposed above the through hole, the camera and the sight glass are disposed on a side of the beam splitter away from the base, and the beam splitter is configured to split the light emitted from the polarizer into two beams uniformly, wherein one beam of light is incident on the camera and the other beam of light is incident on the sight glass.