CN216387720U - Universal automatic focusing LCD projection system - Google Patents
Universal automatic focusing LCD projection system Download PDFInfo
- Publication number
- CN216387720U CN216387720U CN202122905665.5U CN202122905665U CN216387720U CN 216387720 U CN216387720 U CN 216387720U CN 202122905665 U CN202122905665 U CN 202122905665U CN 216387720 U CN216387720 U CN 216387720U
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- motor
- projection system
- thick bamboo
- shell
- lcd projection
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- Focusing (AREA)
- Projection Apparatus (AREA)
Abstract
The utility model discloses a universal automatic focusing LCD projection system which comprises a focal length adjusting mechanism, wherein the focal length adjusting mechanism comprises a lens frame, a rotating cylinder, a shell and a motor, an optical lens is arranged in the lens frame, one end of the rotating cylinder is rotationally connected with the lens frame, the rotating cylinder is provided with a gear ring, the shell is provided with a thread in threaded connection with the rotating cylinder, the motor is provided with a telescopic rod at an output shaft, the telescopic rod is provided with a gear meshed with the gear ring, the motor is provided with a protective shell, the protective shell is of a telescopic rod structure, and the protective shell is used for achieving the protection effect of the motor, the telescopic rod and the gear ring and achieving focal length adjustment.
Description
Technical Field
The utility model relates to the technical field of automatic focusing, in particular to a universal automatic focusing LCD projection system.
Background
As is well known, the lenses currently used in projectors usually require an autofocus function to obtain high quality sharp images. However, the cost of the lens with the auto-focusing function is relatively high, and the ordinary projector cannot obtain high-quality images.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a general automatic focusing LCD projection system which can effectively solve the problems in the background art.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a general type auto focus LCD projection system, includes focus adjustment mechanism, focus adjustment mechanism includes lens barrel, rotatory section of thick bamboo, shell and motor, be equipped with optical lens in the lens barrel, rotatory section of thick bamboo one end and lens barrel swivelling joint, rotatory section of thick bamboo is equipped with the ring gear, the shell is equipped with the screw thread with rotatory section of thick bamboo threaded connection, the motor is equipped with the telescopic link in output shaft department, the telescopic link be equipped with ring gear meshing's gear, the motor is equipped with protecting sheathing, protecting sheathing is telescopic rod structure, protecting sheathing is used for realizing the guard action of motor, telescopic link, ring gear.
Preferably, the protective housing is provided with a fixing groove at a position corresponding to the gear ring, and the telescopic rod penetrates through one side of the fixing groove and is fixedly connected with the gear.
Preferably, the fixing groove is provided with a rotation hole which is not in contact connection with the telescopic rod.
Preferably, the one end that the shell was equipped with the screw thread stretches into in the rotatory section of thick bamboo, the rotatory section of thick bamboo is equipped with sealed pad in the one end of keeping away from the screw thread.
Preferably, an infrared distance measuring module is arranged above the focal length adjusting mechanism.
Compared with the prior art, the utility model has the beneficial effects that:
drive the telescopic link through the motor during use and the gear is rotatory, and the gear drives rotatory whole rotation of rotatory messenger rotary drum with the ring gear meshing, because rotary drum makes rotary drum can come and go the displacement at the shell through with shell threaded connection, realizes the focus and adjusts, can realize keeping clean in the shell through setting up sealed the pad, makes rotary drum remove more smoothly, can realize improving the accuracy when automatic focusing according to surveying the distance through setting up infrared ranging module.
Drawings
FIG. 1 is a schematic diagram of a general type of auto-focus LCD projection system.
Fig. 2 is a schematic structural diagram at a.
Reference numbers in the figures:
1-focal length adjusting mechanism, 11-infrared distance measuring module, 21-lens frame, 211-optical lens, 22-rotary cylinder, 221-gear ring, 222-sealing gasket, 23-shell, 231-screw thread, 24-motor, 241-telescopic rod, 242-gear, 25-protective shell, 251-fixed groove and 252-rotary hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, a general type LCD projection system with auto focus function includes a focus adjustment mechanism 1, the focus adjustment mechanism 1 includes a lens frame 21, a rotary cylinder 22, a housing 23 and a motor 24, an optical lens 211 is disposed in the lens frame 21, one end of the rotary cylinder 22 is rotatably connected to the lens frame 21, the rotary cylinder 22 is provided with a gear ring 221, the housing 23 is provided with a thread 231 that is threadedly connected to the rotary cylinder 22, the motor 24 is provided with an extension rod 241 at an output shaft, the extension rod 241 is provided with a gear 242 that is engaged with the gear ring 221, the motor 24 is provided with a protective housing 25, the protective housing 25 is a telescopic rod structure, the protective housing 25 is used for protecting the motor 24, the extension rod 241 and the gear ring 221, the protective housing 25 is provided with a fixing groove 251 at a position corresponding to the gear ring 221, the extension rod 241 penetrates through one side of the fixing groove 251 to be fixedly connected to the gear 242, fixed slot 251 is equipped with the rotatory hole 252 of being connected with telescopic link 241 contactless, the one end that shell 23 was equipped with screw thread 231 stretches into in the rotatory section of thick bamboo 22, rotatory section of thick bamboo 22 is equipped with sealed pad 222 in the one end of keeping away from screw thread 231, focus adjustment mechanism 1 top is equipped with infrared ranging module 11, it is rotatory to drive telescopic link 241 and gear 242 through motor 24 during the use, gear 242 drives rotatory section of thick bamboo 22 whole rotation with ring gear 221 meshing, because rotatory section of thick bamboo 22 makes rotatory section of thick bamboo 22 can come and go the displacement at shell 23 through 231 and shell 23 threaded connection, realize the focus and adjust, can realize keeping clean in the shell 23 through setting up sealed pad 222, make rotatory section of thick bamboo 22 remove more smoothly, can realize improving the accuracy when automatic focusing according to surveying the distance through setting up infrared ranging module 11.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A general type automatic focusing LCD projection system is characterized in that: including focus adjustment mechanism, focus adjustment mechanism includes lens frame, rotatory section of thick bamboo, shell and motor, be equipped with optical lens in the lens frame, rotatory section of thick bamboo one end and lens frame swivelling joint, rotatory section of thick bamboo is equipped with the ring gear, the shell is equipped with the screw thread with rotatory section of thick bamboo threaded connection, the motor is equipped with the telescopic link in output shaft department, the telescopic link is equipped with the gear with the ring gear meshing, the motor is equipped with protecting sheathing, protecting sheathing is telescopic rod structure, protecting sheathing is used for realizing the guard action of motor, telescopic link, ring gear.
2. A versatile auto-focus LCD projection system as claimed in claim 1, wherein: the protective housing is provided with a fixing groove at the position corresponding to the gear ring, and the telescopic rod penetrates through one side of the fixing groove and is fixedly connected with the gear.
3. A versatile auto-focus LCD projection system as claimed in claim 2, wherein: the fixed slot is provided with a rotating hole which is not in contact connection with the telescopic rod.
4. A versatile auto-focus LCD projection system as claimed in claim 1, wherein: the shell is equipped with in the screwed one end stretches into rotatory section of thick bamboo, rotatory section of thick bamboo is equipped with sealed pad in the one end of keeping away from the screw thread.
5. A versatile auto-focus LCD projection system as claimed in claim 1, wherein: an infrared distance measuring module is arranged above the focal length adjusting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905665.5U CN216387720U (en) | 2021-11-23 | 2021-11-23 | Universal automatic focusing LCD projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122905665.5U CN216387720U (en) | 2021-11-23 | 2021-11-23 | Universal automatic focusing LCD projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216387720U true CN216387720U (en) | 2022-04-26 |
Family
ID=81218436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122905665.5U Active CN216387720U (en) | 2021-11-23 | 2021-11-23 | Universal automatic focusing LCD projection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216387720U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115097689A (en) * | 2022-06-16 | 2022-09-23 | 深圳吉祥星科技股份有限公司 | Projector with remote control and adjustable projection angle |
| CN115185055A (en) * | 2022-07-13 | 2022-10-14 | 深圳创鉴科技有限公司 | Projecting apparatus camera lens that rotation angle is little |
-
2021
- 2021-11-23 CN CN202122905665.5U patent/CN216387720U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115097689A (en) * | 2022-06-16 | 2022-09-23 | 深圳吉祥星科技股份有限公司 | Projector with remote control and adjustable projection angle |
| CN115185055A (en) * | 2022-07-13 | 2022-10-14 | 深圳创鉴科技有限公司 | Projecting apparatus camera lens that rotation angle is little |
| CN115185055B (en) * | 2022-07-13 | 2024-04-05 | 深圳创鉴科技有限公司 | Projector lens with small rotation angle |
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