Device for finely adjusting focal length

Abstract

A device for fine adjustment of focal length comprises a to-be-adjusted system, a main body fixing system, a focusing system and a clamp system, the main body fixing system is connected with the focusing system, the to-be-adjusted system is arranged in the main body fixing system, and the clamp system clamps the to-be-adjusted system; according to the structure, a lead screw transmission mode is adopted, fixing, adjusting and clamping are taken into consideration, the focal length adjusting process is stable and free of shaking in an adjustable mode, the optical path position with the best imaging effect can be finely adjusted according to requirements, the optical imaging effect of a product can be rapidly adjusted to the optimal position, and the product quality is improved. The process of manual repeated debugging in production is omitted, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of imaging, in particular to a device for fine-tuning focal length. Background Art

[0002] In the daily production and assembly process, production personnel can only adjust the distance by knocking or spiral rotation (holding the optical parts by hand and rotating them to adjust the up and down positions). The result is that if the knocking force is slightly greater, the optical parts will be displaced too far and the image will not be clear; if the knocking force is too small, the displacement will not be obvious. It takes a lot of time to debug, and the efficiency is too low. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a device for fine-tuning the focal length.

[0004] The purpose of the utility model is achieved through the following technical solutions: a device for fine-tuning focal length, comprising a system to be adjusted, a main body fixing system, a focusing system and a clamping system, the main body fixing system is connected to the focusing system, the main body fixing system is provided with the system to be adjusted, and the clamping system clamps the system to be adjusted; the focusing system comprises a first connecting plate, the first connecting plate is provided with a first bearing seat and a second bearing seat, a connecting shaft is mounted on the first bearing seat, a fixed seat is provided at one end of the connecting shaft, a bearing is provided on the second bearing seat, a second screw rod is provided on the bearing, an adjusting knob is provided at one end of the second screw rod, a flange screw rod seat is provided at the other end of the second screw rod, and the flange screw rod seat is connected to the fixed seat; the clamping system comprises a second connecting plate, and the second connecting plate is connected to the fixed seat.

[0005] Furthermore, the system to be adjusted includes a system body and an optical path seat connected to the system body.

[0006] Furthermore, the main body fixing system includes a first main body connecting seat, the first main body connecting seat is connected to a connecting seat, the connecting seat is connected to a second main body connecting seat, a first screw rod is provided in the second main body connecting seat, a rubber pad is provided at one end of the first screw rod, a nut is installed between the rubber pad and the first screw rod, and a locking knob is installed at the other end of the first screw rod.

[0007] Furthermore, the first main body connecting seat is connected to the first connecting plate through a reinforcing seat.

[0008] Furthermore, the clamping system includes a first clamping plate, a flange bearing is provided on the first clamping plate, a third screw rod is provided on the flange bearing, a clamping knob is provided on one end of the third screw rod, and a second clamping plate is provided on the other end, a centering shaft is connected to the second clamping plate, the second clamping plate is connected to the second connecting plate, and the first clamping plate and the second clamping plate are used to clamp the optical path seat.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The structure of the utility model adopts a screw drive method, taking into account fixation, adjustment and clamping, and adopts an adjustable method to achieve stability and no shaking during the focal length adjustment process, and can fine-tune the optical path position with the best imaging effect according to needs. With this structure, the optical imaging effect of the product can be quickly adjusted to the optimal position, the process of manual repeated adjustment in production is omitted, and the assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a cross-sectional view of the system to be adjusted of the utility model;

[0013] Figure 3 It is a three-dimensional diagram of the system to be adjusted of the utility model;

[0014] Figure 4 It is a cross-sectional view of the main body fixing system of the utility model;

[0015] Figure 5 A three-dimensional diagram of the main body fixing system of the utility model;

[0016] Figure 6 It is a cross-sectional view of the focusing system of the utility model;

[0017] Figure 7 A three-dimensional diagram of the focusing system of the utility model;

[0018] Figure 8 It is a cross-sectional view of the fixture system of the utility model;

[0019] Fig. 9 It is a three-dimensional diagram of the clamp system of the present utility model. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-9As shown, a device for fine-tuning focal length includes a system to be adjusted 100, a main body fixing system 200, a focusing system 300 and a clamping system 400, wherein the main body fixing system 200 is connected to the focusing system 300, the main body fixing system 200 is provided with the system to be adjusted 100, and the clamping system 400 clamps the system to be adjusted 100; the focusing system 300 includes a first connecting plate 301, the first connecting plate 301 is provided with a first bearing seat 302 and a second bearing seat 303, and the first bearing seat 304 is provided with a first bearing seat 305 and a second bearing seat 306. A connecting shaft 304 is mounted on the seat 302, a fixed seat 305 is provided at one end of the connecting shaft 304, a bearing 308 is provided on the second bearing seat 303, a second screw rod 307 is provided on the bearing 308, an adjusting knob 309 is mounted at one end of the second screw rod 307, a flange screw rod seat 306 is mounted at the other end of the second screw rod 307, and the flange screw rod seat 306 is connected to the fixed seat 305; the clamp system 400 includes a second connecting plate 405, and the second connecting plate 405 is connected to the fixed seat 305.

[0022] The system to be adjusted 100 includes a system body 101 and an optical path seat 102 connected to the system body 101 .

[0023] The main body fixing system 200 includes a first main body connecting seat 201, the first main body connecting seat 201 is connected to a connecting seat 202, the connecting seat 202 is connected to a second main body connecting seat 203, a first screw rod 205 is arranged in the second main body connecting seat 203, a rubber pad 204 is arranged at one end of the first screw rod 205, a nut 206 is arranged between the rubber pad 204 and the first screw rod 205, and a locking knob 207 is arranged at the other end of the first screw rod 205.

[0024] The first main body connection seat 201 is connected to the first connection plate 301 through the reinforcement seat 310. The clamp system 400 includes a first clamping plate 401, a flange bearing 402 is provided on the first clamping plate 401, a third screw rod 403 is provided on the flange bearing 402, a clamping knob 404 is provided at one end of the third screw rod 403, and a second clamping plate 406 is provided at the other end, a centering shaft 407 is connected to the second clamping plate 406, and the second clamping plate 406 is connected to the second connection plate 405, and the first clamping plate 401 and the second clamping plate 406 are used to clamp the optical path seat 102.

[0025] The utility model adjusts the height of the fixing seat 305 by rotating the adjusting knob 309. Since the fixing seat 305 is connected to the second connecting plate 405, the height of the second connecting plate 405 is adjusted, thereby adjusting the height of the entire clamp system 400. The first clamp plate 401 and the second clamp plate 406 clamp the optical path seat 102, thereby adjusting the height of the optical path seat 102 to achieve the final height adjustment; and the clamping knob 404 and the locking knob 207 can clamp and fix the optical path seat 102.

[0026] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A device for fine-tuning the focal length, It is characterized in that The invention comprises a system to be adjusted (100), a main body fixing system (200), a focusing system (300) and a clamping system (400), wherein the main body fixing system (200) is connected to the focusing system (300), the system to be adjusted (100) is arranged in the main body fixing system (200), and the clamping system (400) clamps the system to be adjusted (100); The focusing system (300) comprises a first connecting plate (301), wherein a first bearing seat (302) and a second bearing seat (303) are provided on the first connecting plate (301), a connecting shaft (304) is arranged on the first bearing seat (302), a fixing seat (305) is arranged at one end of the connecting shaft (304), a bearing (308) is arranged on the second bearing seat (303), a second screw rod (307) is arranged on the bearing (308), an adjusting knob (309) is arranged at one end of the second screw rod (307), a flange screw rod seat (306) is arranged at the other end of the second screw rod (307), and the flange screw rod seat (306) is connected to the fixing seat (305); The clamp system (400) comprises a second connecting plate (405), wherein the second connecting plate (405) is connected to the fixing seat (305).

2. The device for fine-tuning focus according to claim 1, Features: The system to be adjusted (100) comprises a system body (101) and an optical path seat (102) connected to the system body (101).

3. The device for fine-tuning focus according to claim 2, Features: The main body fixing system (200) comprises a first main body connecting seat (201), wherein the first main body connecting seat (201) is connected to a connecting seat (202), wherein the connecting seat (202) is connected to a second main body connecting seat (203), wherein a first screw rod (205) is arranged inside the second main body connecting seat (203), wherein a rubber pad (204) is arranged at one end of the first screw rod (205), a nut (206) is arranged between the rubber pad (204) and the first screw rod (205), and a locking knob (207) is arranged at the other end of the first screw rod (205).

4. The device for fine-tuning focus according to claim 3, Features: The first main body connecting seat (201) is connected to the first connecting plate (301) via a reinforcing seat (310).

5. The device for fine-tuning focus according to claim 4, Features: The clamping system (400) comprises a first clamping plate (401), a flange bearing (402) is provided on the first clamping plate (401), a third screw rod (403) is provided on the flange bearing (402), a clamping knob (404) is provided at one end of the third screw rod (403), and a second clamping plate (406) is provided at the other end, a centering shaft (407) is connected to the second clamping plate (406), and the second clamping plate (406) is connected to a second connecting plate (405), and the first clamping plate (401) and the second clamping plate (406) are used to clamp the optical path seat (102).

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