Device for detecting size thermal stability of lens cone material

Abstract

The utility model provides a size thermal stability detection device for a lens cone material, and belongs to the technical field of lens cone material stability detection equipment. The device comprises a bottom plate, a sliding rail, a sliding block, a high-speed camera, a supporting seat, a fixing sleeve, a laser generating device and a controllable heat box, when the device is used, the heating device continuously heats the internal space of a sealed box body, and along with temperature rise, the length of a lens cone is changed according to the principle of thermal expansion and cold contraction; even if the relative position of the convex lens and the high-speed camera is changed, the imaging focus at the high-speed camera is changed, the high-speed camera is connected with a computer, the size of the focus is monitored in real time, and the heat-resistant stability of each optical lens cone material can be compared through the definition comparison of the focus; the device for detecting the size thermal stability of the lens cone material is convenient to disassemble and assemble the optical lens cone, and has the advantages of simple structure, small volume, easiness in operation, low cost, portability and the like.

Description

Technical Field

[0001] The present application relates to the technical field of equipment for detecting the material stability of a lens barrel, and in particular to a device for detecting the dimensional thermal stability of a lens barrel material. Background Art

[0002] After an optical lens barrel is produced, its heat resistance needs to be tested. Sometimes, optical lens barrels made of different materials need to be compared and tested to determine the advantages and disadvantages of the heat resistance of optical lens barrels made of different materials. Currently, the equipment used for heat resistance testing of optical lens barrels often has the disadvantages of large size, high equipment cost, and inconvenience in carrying. Therefore, the present application provides a device for testing the dimensional thermal stability of lens barrel materials. Utility Model Content

[0003] In order to make up for the above shortcomings, the present application provides a device for detecting the dimensional thermal stability of a lens barrel material, aiming to improve the problems of the current equipment used for detecting the heat resistance of optical lens barrels, such as large size, high equipment cost, and inconvenience in carrying.

[0004] This application is implemented as follows:

[0005] The present application provides a device for detecting the thermal stability of the size of a lens barrel material, comprising a base plate, a slide rail, a slider, a high-speed camera, a support seat, a fixed sleeve, a laser generating device and a controllable heat box, wherein the slide rail, the controllable heat box and the support seat are all fixed on the upper surface of the base plate, the slider is slidably arranged on the slide rail, the high-speed camera is mounted on the slider, and the fixed sleeve is slidably arranged on the support seat;

[0006] The laser generating device is fixed on the fixing sleeve, a lens barrel is arranged on the controllable heat box, a lens barrel cover is threadedly sleeved on the lens barrel, a convex lens is fixedly installed in the lens barrel cover, a light shielding cover is arranged on the laser generating device, a part of the lens barrel close to the laser generating device is threadedly penetrated through the controllable heat box, and a part of the lens barrel close to the high-speed camera is slidably penetrated through the controllable heat box.

[0007] In one embodiment of the present application, it also includes a dust cover, which is fixed on the base plate.

[0008] In one embodiment of the present application, a hand-held portion is further included, and the hand-held portion is fixed on the upper surface of the dust cover.

[0009] In one embodiment of the present application, the controllable heat box includes a box body, a heating device and a temperature control probe, the box body is fixed on the upper surface of the bottom plate, and the heating device and the temperature control probe are both fixed in the box body;

[0010] The portion of the lens barrel near the laser generating device is threadedly penetrated through the box, and the portion of the lens barrel near the high-speed camera is slidably penetrated through the box.

[0011] In one embodiment of the present application, a heat insulation board is fixedly installed in the box body, and the lens barrel passes through the heat insulation board.

[0012] In one embodiment of the present application, an L-shaped plate is further included, wherein the lower surface of the L-shaped plate is fixed on the upper surface of the slider, and the high-speed camera is fixed on the side surface of the L-shaped plate.

[0013] The beneficial effects of the present application are as follows: the present application obtains a device for detecting the thermal stability of the size of a lens barrel material through the above-mentioned design. When in use, the dust cover and the cover of the box are removed, different lens barrels are screwed to different positions of the box respectively, and then the lens barrel cover is screwed onto the lens barrel. The end of the lens barrel close to the laser generating device is tightened by screwing and cannot be moved. The end of the lens barrel close to the high-speed camera slides through the box and can move forward and backward. The laser generating device is started, and the fixed sleeve is moved to adjust the position of the laser generating device on the support seat. Then the front and back and up and down positions of the high-speed camera are adjusted to optimize the laser imaging focus and make the focus of multiple lasers The point remains consistent in size, the lid of the box is closed, the temperature value of the box is set, and the heating device continues to heat the internal space of the sealed box. As the temperature rises, according to the principle of thermal expansion and contraction, the length of the lens barrel changes, even if the relative position of the convex lens and the high-speed camera changes, resulting in a change in the imaging focus at the high-speed camera. The high-speed camera is connected to a computer to monitor the focus size in real time. By comparing the clarity of the focus, the heat resistance stability of each optical lens barrel material can be compared. The size thermal stability detection device of the lens barrel material is convenient for disassembly and assembly of the optical lens barrel, and has the advantages of simple structure, small size, easy operation, low cost, and portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a device for detecting the thermal stability of the size of a lens barrel material provided in an embodiment of the present application;

[0016] Figure 2 A diagram showing the relationship between the base plate, the box, the high-speed camera and the laser generating device provided in the embodiment of the present application;

[0017] Figure 3A schematic diagram of the cross-sectional structure of the base plate, heat insulation plate, lens barrel cover and box body provided in the embodiment of the present application;

[0018] Figure 4 A diagram showing the relationship between the box, heat insulation board and temperature control probe provided in the embodiment of the present application.

[0019] In the figure: 110 - dust cover; 120 - handheld part; 130 - bottom plate; 140 - slide rail; 150 - slider; 160 - high-speed camera; 170 - support seat; 180 - fixed sleeve; 190 - laser generating device; 191 - controllable heat box; 1911 - box body; 1912 - heat insulation board; 1913 - heating device; 1914 - temperature control probe; 192 - lens barrel cover; 193 - convex lens; 194 - lens barrel; 195 - light shielding cover; 196 - L-shaped plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] Example

[0022] See also Figure 1 - Figure 4 The present application provides a technical solution: a device for detecting the thermal stability of the size of a lens barrel material, comprising a base plate 130, a slide rail 140, a slider 150, a high-speed camera 160, a support seat 170, a fixing sleeve 180, a laser generating device 190 and a controllable heat box 191, wherein the slide rail 140, the controllable heat box 191 and the support seat 170 are all fixed on the upper surface of the base plate 130, and further comprising a dust cover 110, wherein the dust cover 110 is fixed on the base plate 130, and the setting of the dust cover 110 is convenient for dustproof protection of the high-speed camera 160, the laser generating device 190 and the controllable heat box 191, and further comprising a handheld part 120, wherein the handheld part 120 is fixed on the upper surface of the dust cover 110, and the setting of the handheld part 120 is convenient for carrying the device, and the slider 150 is slidably set on the slide rail 140;

[0023] The high-speed camera 160 is installed on the slider 150, and also includes an L-shaped plate 196. The lower surface of the L-shaped plate 196 is fixed on the upper surface of the slider 150, and the high-speed camera 160 is fixed on the side surface of the L-shaped plate 196. The setting of the L-shaped plate 196 is convenient for adjusting the left and right and up and down positions of the high-speed camera 160. The L-shaped plate 196 is provided with a first bolt, and the first bolt thread penetrates the L-shaped plate 196 and the slider 150. The fixing sleeve 180 is provided with a second bolt, and the second bolt thread penetrates the fixing sleeve 180. The setting of the first bolt is convenient for fixing the slider 150 on the slide rail 140. The lower end of the first bolt squeezes the upper surface of the slide rail 140. The setting of the second bolt is convenient for fixing the fixing sleeve 180 on the support seat 170. The lower end of the second bolt squeezes the upper surface of the support seat 170, and the fixing sleeve 180 is slidably set on the support seat 170.

[0024] The laser generating device 190 is fixed on the fixing sleeve 180, and a lens barrel 194 is provided on the controllable heat box 191. A lens barrel cover 192 is threadedly sleeved on the lens barrel 194, and a convex lens 193 is fixedly installed in the lens barrel cover 192. The controllable heat box 191 includes a box body 1911, a heating device 1913 and a temperature control probe 1914. The box body 1911 is fixed on the upper surface of the bottom plate 130, and the heating device 1913 and the temperature control probe 1914 are both fixed in the box body 1911;

[0025] The portion of the lens barrel 194 near the laser generating device 190 is threadedly penetrated through the box 1911, and the portion of the lens barrel 194 near the high-speed camera 160 is slidably penetrated through the box 1911. The setting of the heating device 1913 and the temperature control probe 1914 facilitates the control of the temperature in the box 1911. A heat insulation board 1912 is fixedly installed in the box 1911, and the lens barrel 194 penetrates the heat insulation board 1912. The setting of the heat insulation board 1912 stabilizes the temperature in the box 1911 and improves the accuracy. A light shielding cover 195 is provided on the laser generating device 190, and the portion of the lens barrel 194 near the laser generating device 190 is threadedly penetrated through the controllable heat box 191, and the portion of the lens barrel 194 near the high-speed camera 160 is slidably penetrated through the controllable heat box 191.

[0026] Specifically, the working principle of the device for detecting the thermal stability of the size of the lens barrel material is as follows: when in use, remove the dust cover 110 and the cover of the box 1911, screw different lens barrels 194 to different positions of the box 1911, and then screw the lens barrel cover 192 onto the lens barrel 194, the lens barrel 194 is close to the end of the laser generating device 190, and is tightened by screwing, and cannot be moved. The lens barrel 194 is close to the end of the high-speed camera 160 and slides through the box 1911, and can move back and forth. Start the laser generating device 190, move the fixing sleeve 180 to adjust the position of the laser generating device 190 on the support seat 170, and then adjust the front and back and up and down positions of the high-speed camera 160 to optimize the focus of laser imaging and make the focus of multiple lasers The point remains consistent in size, the lid of the box 1911 is closed, the temperature value of the box 1911 is set, and the heating device 1913 continues to heat the internal space of the sealed box 1911. As the temperature rises, according to the principle of thermal expansion and contraction, the length of the lens barrel 194 changes, even if the relative position of the convex lens 193 and the high-speed camera 160 changes, resulting in a change in the imaging focus at the high-speed camera 160. The high-speed camera 160 is connected to a computer to monitor the focus size in real time. By comparing the clarity of the focus, the heat resistance stability of each optical lens barrel 194 material can be compared. The size thermal stability detection device of the lens barrel material is convenient for disassembly and assembly of the optical lens barrel 194, and has the advantages of simple structure, small size, easy operation, low cost, and portability.

[0027] It should be noted that the specific model specifications of the high-speed camera 160, laser generating device 190, heating device 1913 and temperature control probe 1914 need to be selected and determined based on the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0028] The power supply and principles of the high-speed camera 160 , the laser generating device 190 , the heating device 1913 and the temperature control probe 1914 are clear to those skilled in the art and will not be described in detail herein.

[0029] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A device for detecting the dimensional thermal stability of a lens barrel material, characterized in that: The invention comprises a bottom plate (130), a slide rail (140), a slider (150), a high-speed camera (160), a support seat (170), a fixing sleeve (180), a laser generating device (190) and a controllable heat box (191), wherein the slide rail (140), the controllable heat box (191) and the support seat (170) are all fixed on the upper surface of the bottom plate (130), the slider (150) is slidably arranged on the slide rail (140), the high-speed camera (160) is mounted on the slider (150), and the fixing sleeve (180) is slidably arranged on the support seat (170); The laser generating device (190) is fixed on the fixing sleeve (180), a lens barrel (194) is arranged on the controllable heat box (191), a lens barrel cover (192) is threadedly sleeved on the lens barrel (194), a convex lens (193) is fixedly installed in the lens barrel cover (192), a light shielding cover (195) is arranged on the laser generating device (190), a portion of the lens barrel (194) close to the laser generating device (190) is threadedly penetrated through the controllable heat box (191), and a portion of the lens barrel (194) close to the high-speed camera (160) is slidably penetrated through the controllable heat box (191).

2. The device for detecting the dimensional thermal stability of a lens barrel material according to claim 1, characterized in that: It also includes a dust cover (110), wherein the dust cover (110) is fixed on the bottom plate (130).

3. A device for detecting the dimensional thermal stability of a lens barrel material according to claim 2, characterized in that: It also comprises a hand-held part (120), wherein the hand-held part (120) is fixed on the upper surface of the dust cover (110).

4. The device for detecting the dimensional thermal stability of a lens barrel material according to claim 1, characterized in that: The controllable heat box (191) comprises a box body (1911), a heating device (1913) and a temperature control probe (1914); the box body (1911) is fixed on the upper surface of the bottom plate (130); the heating device (1913) and the temperature control probe (1914) are both fixed inside the box body (1911); The portion of the lens barrel (194) close to the laser generating device (190) is threadedly penetrated through the box body (1911), and the portion of the lens barrel (194) close to the high-speed camera (160) is slidably penetrated through the box body (1911).

5. The device for detecting the dimensional thermal stability of a lens barrel material according to claim 4, characterized in that: A heat insulation board (1912) is fixedly installed in the box body (1911), and the lens barrel (194) passes through the heat insulation board (1912).

6. The device for detecting the dimensional thermal stability of a lens barrel material according to claim 1, characterized in that: It also includes an L-shaped plate (196), the lower surface of the L-shaped plate (196) is fixed on the upper surface of the slider (150), and the high-speed camera (160) is fixed on the side surface of the L-shaped plate (196).

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