Projector lens assembly imaging effect screening tool

Abstract

The utility model provides a projector lens assembly imaging effect screening tool. The screening tool comprises a shell, a light source, a reflection cup, a light-transmitting plate and a placement frame. The shell is provided with an installation opening for installing a lens assembly, the light source, the reflection cup, the placing frame and the light-transmitting plates are all located in the shell, the placing frame is used for placing the light-transmitting plates, and light rays of the light source sequentially pass through the reflection cup and the light-transmitting plates and finally pass through the installation opening. According to the screening tool, the optical devices needed by imaging are arranged in the shell, the lens assembly can be subjected to an imaging test by installing the lens assembly on the installation opening of the shell, and therefore the lens assembly meeting the imaging requirement can be screened out in advance, the first pass yield and quality of product production are improved, and the maintenance time and cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of projector lens quality inspection, in particular to a kind of projector lens assembly imaging effect screening tool. BACKGROUND

[0002] Lens assembly is an important component of projector, and the quality of its finished product is related to the quality of projection picture, so imaging test needs to be carried out on lens assembly.In actual operation, imaging test can be carried out after lens assembly is assembled to other parts of projector to form complete machine.If lens assembly does not meet imaging requirements, the complete machine cannot be used normally, and the complete machine of projector needs to be disassembled, replaced with other lens assembly, reassembled, and then imaging test is carried out again until test is qualified, and projector can be used normally and sold.

[0003] Therefore, it is necessary to provide a kind of projector lens assembly imaging effect screening tool for screening qualified lens assembly in advance. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a kind of projector lens assembly imaging effect screening tool for screening qualified lens assembly in advance, to improve the direct-through rate of product production.

[0005] According to the embodiment of the present application, the first scheme is provided: a kind of projector lens assembly imaging effect screening tool, the screening tool includes shell, light source, light cup, light transmission plate piece and placing rack;The shell is equipped with the installation port of installation lens assembly, the light source, the light cup, the placing rack and the light transmission plate piece are all located in the shell, the placing rack is used to place the light transmission plate piece, the light of the light source is sequentially through the light cup and multiple light transmission plate pieces, and finally through the installation port.

[0006] In a preferred scheme, the bottom of the placing rack is provided with a receiving groove for placing the light transmission plate piece.

[0007] In a preferred scheme, the opposite sides of the placing rack are each provided with a clamping piece, the clamping piece includes a clamping portion and an elastic portion, and the elastic portion drives the clamping portion to abut against the light transmission plate piece.

[0008] In a preferred scheme, the clamping portion is provided with a clamping groove for clamping the light transmission plate piece on the side away from the elastic portion.

[0009] In a preferred embodiment, the bottom of the placing rack is provided with a threaded hole and a knob, the knob penetrating through the threaded hole from the bottom of the threaded hole and being threadedly connected with the threaded hole, the height of the light-transmitting plate being adjusted by rotating the knob, and the bottom of the shell is provided with an opening exposing the knob.

[0010] In a preferred embodiment, the placing rack comprises an outer rack and an inner rack, the threaded hole being arranged at the bottom of the outer rack, and the inner rack being pushed to slide relative to the outer rack by rotating the knob.

[0011] In a preferred embodiment, the direction of the light source towards the mounting opening is a first direction, the shell is provided with a first sliding groove extending along the first direction, and a plurality of the placing racks are arranged along the first direction and are respectively connected with the first sliding groove in sliding mode.

[0012] In a preferred embodiment, the bottom of the placing rack is provided with a first sliding block connected with the first sliding groove in sliding mode, the first sliding block comprises a first connecting portion and a first limiting portion, the first limiting portion being connected with the bottom of the first connecting portion, the first sliding groove comprises a first connecting groove and a first limiting groove, and the first limiting groove is communicated with the bottom of the first connecting groove.

[0013] In a preferred embodiment, the shell comprises a base and a top shell, the base comprises a first mounting plate protruding upward, the mounting opening is arranged at the first mounting plate, and the top shell is provided with a combination groove abutting with the first mounting plate.

[0014] In a preferred embodiment, the projection lens assembly imaging effect screening tool further comprises a second mounting plate mounting the light source, the bottom of the second mounting plate is provided with a second sliding block, the base is further provided with a second sliding groove extending along the first direction, and the second sliding block is located in the second sliding groove and can slide relative to the second sliding groove.

[0015] The present application has the following beneficial effects:

[0016] The shell of the screening tool is provided with various optical devices required for imaging, the lens assembly can be tested for imaging by being mounted on the mounting opening of the shell, and thus the lens assembly meeting the imaging requirements can be screened in advance, thereby improving the direct pass rate and quality of product production, reducing maintenance man-hours and costs. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of the shell according to an embodiment of the present application;

[0018] Figure 2The structural schematic view of the projection lens assembly imaging effect screening tool according to an embodiment of the utility model;

[0019] Figure 3 For Figure 3 The enlarged view at a in the middle;

[0020] Figure 4 For Figure 4 The enlarged view at b in the middle;

[0021] Figure 5 The structural schematic view of another view of the projection lens assembly imaging effect screening tool according to an embodiment of the utility model;

[0022] Figure 6 The installation structure schematic view of the second mounting plate and the base.

[0023] The label: 10, shell; 10a, base; 10b, top shell; 11, installation mouth; 12, opening; 13, first sliding groove; 131, connecting groove; 132, limiting groove; 14, first mounting plate; 15, combination groove; 16, second sliding groove; 20, light source; 30, light cup; 40, light transmission plate; 50, placing rack; 50a, inner rack; 50b, outer rack; 51, containing groove; 52, clamping piece; 521, clamping part; 5211, clamping groove; 522, elastic part; 53, knob piece; 55, first sliding block; 551, connecting part; 552, limiting part; 60, second mounting plate; F1, first direction; 60, lens assembly; DETAILED DESCRIPTION

[0024] In order to make the skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" and "several" is two or more, unless otherwise explicitly specified.

[0028] It should be understood that the structure, proportion, size and the like shown in the drawings of the present application are only used to cooperate with the content disclosed in the description, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, and therefore do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0029] Please refer to Figures 1-5 The embodiment of the present application provides a projection lens assembly imaging effect screening tool, which comprises a shell 10, a light source 20, a light cup 30, a light transmission plate 40 and a placing rack 50. The shell 10 is provided with a mounting port 11 for mounting the lens assembly 60, the light source 20, the light cup 30, the placing rack 50 and the light transmission plate 40 are all located in the shell 10, the placing rack 50 is used for placing the light transmission plate 40, the light of the light source 20 passes through the light cup 30 and the plurality of light transmission plates 40 in sequence, and finally passes through the mounting port 11.

[0030] It can be understood that the plurality of light transmission plates 40 contain various optical devices required for imaging, such as front lenses, liquid crystal screens and rear lenses, so that the screening tool meets the conditions for testing the imaging effect, and the heat insulation glass for heat insulation can also be contained, so that the screening tool can perform screening operation on the lens assembly 60 for a long time.

[0031] In the embodiment, the shell 10 of the screening tool is provided with various optical devices required for imaging. By mounting the lens assembly 60 on the mounting port 11 of the shell 10, the lens assembly 60 can be subjected to imaging test, so that the lens assembly 60 meeting the imaging requirement can be screened in advance, thereby improving the straight-through rate and quality of product production, reducing maintenance man-hours and cost.

[0032] In one embodiment, reference can be made to Figure 3 and Figure 4 The bottom of the placing rack 50 is provided with a receiving groove 51 for placing the light-transmitting plate 40. The width of the receiving groove 51 can be set to correspond to the thickness of the light-transmitting plate 40, so as to ensure the stability of the light-transmitting plate 40 when placed.

[0033] In one embodiment, in order to make the light-transmitting plate 40 more stable, the opposite sides of the placing rack 50 are each provided with a clamping piece 52. The clamping piece 52 includes a clamping portion 521 and an elastic portion 522. The elastic portion 522 drives the clamping portion 521 to abut against the light-transmitting plate 40, so that the clamping portions 521 on the opposite sides clamp the light-transmitting plate 40. The elastic portion 522 is preferably a spring. The provision of the elastic member can make the placing rack 50 adaptable to light-transmitting plates 40 of various sizes.

[0034] Further, reference can be made to Figure 3 and Figure 4 The clamping portion 521 is provided on the side away from the elastic portion 522 with a clamping groove 5211 for clamping the light-transmitting plate 40. The width of the clamping groove 5211 can be set to correspond to the thickness of the light-transmitting plate 40.

[0035] In one embodiment, the bottom of the placing rack 50 is provided with a threaded hole and a knob piece 53. The knob piece 53 penetrates the threaded hole from the bottom of the threaded hole and is threadedly connected with the threaded hole. The height of the light-transmitting plate 40 can be adjusted by rotating the knob piece 53.

[0036] Alternatively, the knob piece 53 can directly abut against the bottom of the optical plate to push the optical plate to be raised.

[0037] Preferably, in order to avoid direct contact between the knob piece 53 and the optical plate, thereby causing abrasion of the bottom of the optical component, the placing rack 50 further includes an outer rack 50b and an inner rack 50a. The threaded hole (not shown) is arranged at the bottom of the outer rack 50b. The knob piece 53 directly abuts against the inner rack 50a instead of directly abutting against the optical plate. The height of the optical plate can be adjusted by rotating the knob piece 53 to push the inner rack 50a to slide relative to the outer rack 50b.

[0038] Preferably, in order to facilitate the height adjustment by the operator, the bottom of the shell 10 is provided with an opening 12 for exposing the knob piece 53, so that the operator can reach from the bottom to adjust the height.

[0039] Specifically, the accommodation groove 51 is arranged at the bottom of the inner frame 50a, the clamping member 52 is arranged at the two sides of the inner frame 50a, and the elastic part 522 is connected between the clamping part 521 and the inner frame 50a.

[0040] In some embodiments, the placing rack 50 in the shell 10 can be one, and the placing rack 50 is provided with a plurality of accommodation grooves 51, and each light-transmitting plate member 40 can be placed in one of the accommodation grooves 51.

[0041] Of course, in other embodiments, the placing rack 50 in the shell 10 can also be multiple, and one placing rack 50 corresponds to one light-transmitting plate member 40.

[0042] Preferably, referring to Figure 2 , Figure 3 and Figure 5 , the placing rack 50 in the shell 10 has multiple, the direction of the light source 20 towards the mounting port 11 is the first direction F1, the shell 10 is provided with a first sliding groove 13 extending along the first direction F1, the first sliding groove 13 is preferably arranged at the bottom of the shell 10, and the multiple placing racks 50 are arranged along the first direction F1 and are respectively connected with the first sliding groove 13 in sliding mode.

[0043] In this embodiment, the multiple placing racks 50 can slide along the first direction F1, so that the focal length of the front lens, the heat insulation glass, the liquid crystal screen and the rear lens can be adjusted according to the requirements of the light path, thereby being compatible with the test requirements of lens assemblies 60 of different specifications, and the practicability of the screening tool is better.

[0044] Preferably, referring to Figure 3 and Figure 5 , the bottom of the placing rack 50 is provided with a first sliding block 55 connected with the first sliding groove 13 in sliding mode, the first sliding block 55 includes a first connecting part 551 and a first limiting part 552, the first limiting part 552 is connected to the bottom of the first connecting part 551, the first sliding groove 13 includes a first connecting groove 131 and a first limiting groove 132, and the first limiting groove 132 is connected to the bottom of the first connecting groove 131. Specifically, the first sliding block 55 and the first sliding groove 13 are both in inverted T-shaped structure, the first connecting part 551 is located in the first connecting groove 131, and the first limiting part 552 is located in the first limiting groove 132, so that the connection between the placing rack 50 and the base 10a is more stable and is not easy to be tilted and shaken.

[0045] In one embodiment, the shell 10 includes a base 10a and a top shell 10b, the base 10a includes a first mounting plate 14 protruding upward, the mounting port 11 is arranged on the first mounting plate 14, and the top shell 10b is provided with a combination groove 15 abutting the first mounting plate 14. Referring to Figure 2The lens assembly 60 can be directly inserted into the mounting hole 11 on the first mounting plate 14, so as to facilitate imaging test, the first mounting plate 14 is matched with the shape of the combining groove 15, and the top cover 10b and the base 10a are directly disassembled and assembled.

[0046] In one embodiment, reference can be made to Figure 6 The reflecting cup 30 can be fixed on the nearest clamping part 521 by a screw, the screening tool further comprises a second mounting plate 60, and the light source 20 can be fixed on the second mounting plate 60 by a screw, wherein the base 10a is provided with a second sliding groove 16 extending along the first direction F1, the second sliding groove 16 is located between the two first sliding grooves 13, the bottom of the second mounting plate 60 is provided with a second sliding block 61, the second sliding block 61 is located in the second sliding groove 16, and the second sliding block 61 can slide relative to the second sliding groove 16, so that the second mounting plate 60 can move forward and backward, and the position of the light source 20 can be adjusted. Preferably, the second sliding block 61 and the second sliding groove 16 are both provided with two. When the reflecting cup 30 of different specifications is replaced, the forward and backward positions of the second mounting plate 60 can also be adjusted by sliding.

[0047] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A projector lens assembly imaging effect screening tool, characterized in that, The projection apparatus lens assembly imaging effect screening tool comprises a shell, a light source, a light reflecting cup, a light transmitting plate and a placing rack.

2. The projector lens assembly imaging effect screening tool of claim 1, wherein, The bottom of the placing rack is provided with a receiving groove for placing the light transmitting plate.

3. The tool of claim 1, wherein, The opposite sides of the placing rack are provided with clamping pieces, which comprise clamping portions and elastic portions.

4. The tool of claim 3, wherein, The clamping portions are provided with clamping grooves for clamping the light transmitting plate on the side away from the elastic portions.

5. The tool of claim 1, wherein, The bottom of the placing rack is provided with a threaded hole and a knob piece.

6. The tool of claim 5, wherein, The bottom of the placing rack is provided with a threaded hole and a knob piece.

7. The tool of any of claims 1-6, wherein: The direction of the light source towards the mounting port is a first direction.

8. The tool of claim 7, wherein, The shell is provided with a first sliding groove extending along the first direction.

9. The tool of claim 1, wherein, The bottom of the placing rack is provided with a first sliding block in sliding connection with the first sliding groove.

10. The tool of claim 9, wherein The shell comprises a base and a top shell. The base comprises a first mounting plate protruding upwards. The mounting port is arranged on the first mounting plate. The top shell is provided with a combination groove in close contact with the first mounting plate. The projection apparatus lens assembly imaging effect screening tool further comprises a second mounting plate for mounting the light source. The bottom of the second mounting plate is provided with a second sliding block. The base is further provided with a second sliding groove extending along the first direction. The second sliding block is located in the second sliding groove and can slide relative to the second sliding groove.

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