CN220271643U - Automatic focusing lens for projector - Google Patents
Automatic focusing lens for projector Download PDFInfo
- Publication number
- CN220271643U CN220271643U CN202320923920.5U CN202320923920U CN220271643U CN 220271643 U CN220271643 U CN 220271643U CN 202320923920 U CN202320923920 U CN 202320923920U CN 220271643 U CN220271643 U CN 220271643U
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- lens
- rotating
- frame
- wall
- automatic focusing
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- 230000000875 corresponding effect Effects 0.000 claims description 4
- 230000002596 correlated effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an automatic focusing lens for a projector, which comprises a bracket, a lens component, a rotating frame and a rotating motor, wherein the rotating motor is arranged on one side of the bracket; the periphery of the outer wall of one side of the rotating frame is provided with annular rotating teeth, and a gear of the rotating motor is meshed with the annular rotating teeth. The utility model has the beneficial effects of novel structure and convenient use; the electrified automatic rotation is realized through the engagement between the rotary motor and the annular rotary gear, further, the rotation of the rotary frame is changed into the front-back telescopic movement of the lens by utilizing the sliding groove on the rotary frame and the sliding piece on the lens, so that the automatic focusing can be realized, and the automatic focusing is more accurate and the efficiency is higher compared with the manual focusing.
Description
Technical Field
The utility model relates to the technical field of projectors, in particular to an automatic focusing lens for a projector.
Background
Today, projectors are one of the commonly used electronic products. In the projector, the projection is realized by a light source, a lens, and in general, the projection distance of the projector is limited, so that the focal length of the conventional projector lens can be adjusted to obtain the optimum projection effect, in other words, the optimum projection effect is realized by the lens of the knob projector.
However, the lenses of projectors on the market are manually adjusted to focus, which has the disadvantage of being completely dependent on a knob of a human hand, thus making accurate adjustment difficult and inefficient.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide an automatic focusing lens for a projector, which realizes automatic focusing of the lens through the meshing of a rotary motor and a ring-shaped rotary gear, so that the efficiency is higher, and the optimal projection effect is easier to adjust and obtain.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an automatic focusing lens for a projector comprises a bracket, a lens component, a rotating frame and a rotating motor, wherein the rotating motor is arranged on one side of the bracket, the lens component is movably connected to the periphery of the inner wall of the rotating frame, and the rotating frame is sleeved in the bracket; the periphery of the outer wall of one side of the rotating frame is provided with annular rotating teeth, and a gear of the rotating motor is meshed with the annular rotating teeth.
It should be noted that the lens assembly includes a lens frame and a lens, one end of the lens is movably connected to the lens frame, and the other end of the lens is movably connected to the periphery of the inner wall of the rotating frame.
The sliding parts are uniformly distributed on the periphery of the outer wall of the other end of the lens, sliding grooves corresponding to the sliding parts are formed on the periphery of the inner wall of the rotating frame, and the sliding parts are located in the sliding grooves to move, so that the lens moves back and forth relative to the rotating frame and the lens frame.
The outer wall of one end of the lens is provided with an external thread, and the inner wall of the lens frame is provided with an internal thread matched with the external thread.
It should be noted that, the forward distance of the lens is positively correlated with the length of the chute.
The utility model has the beneficial effects of novel structure and convenient use; the electrified automatic rotation is realized through the engagement between the rotary motor and the annular rotary gear, further, the rotation of the rotary frame is changed into the front-back telescopic movement of the lens by utilizing the sliding groove on the rotary frame and the sliding piece on the lens, so that the automatic focusing can be realized, and the automatic focusing is more accurate and the efficiency is higher compared with the manual focusing.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, and it should be noted that the following examples give detailed embodiments and specific operation procedures on the premise of the present technical solution, but the scope of the present utility model is not limited to the examples.
As shown in fig. 1, the present utility model is an autofocus lens for a projector, including a bracket 1, a lens assembly, a turret 2, and a rotary motor 3, wherein the rotary motor 3 is disposed on one side of the bracket 1, the lens assembly is movably connected to the periphery of the inner wall of the turret 2, and the turret 2 is sleeved in the bracket 1; the periphery of one side outer wall of the rotating frame 2 is provided with annular rotating teeth 21, and a gear 31 of the rotating motor 3 is meshed with the annular rotating teeth 21.
Further, as shown in fig. 1, the lens assembly of the present utility model includes a lens frame 4 and a lens 5, one end of the lens 5 is movably connected to the lens frame 4, and the other end of the lens 5 is movably connected to the periphery of the inner wall of the rotating frame 2.
Further, as shown in fig. 1, the periphery of the outer wall of the other end of the lens is uniformly provided with sliding pieces 51, the periphery of the inner wall of the rotating frame 2 is provided with sliding grooves 22 corresponding to the positions of the sliding pieces 51, and the sliding pieces 51 move in the sliding grooves 22, so that the lens moves back and forth relative to the rotating frame and the lens frame.
Furthermore, the outer wall of one end of the lens is provided with external threads, and the inner wall of the lens frame is provided with internal threads matched with the external threads.
Further, the forward distance of the lens of the present utility model is positively correlated with the length of the chute.
It should be noted that the sliding member in the present utility model may be a cylinder, and in order to prevent detachment between the lens and the lens frame, the cylinder may abut against an end surface of the lens frame.
As a preferable technical scheme, the number of the sliding parts is 4, and the number of the corresponding sliding grooves is also 4.
It should be noted that the present utility model is installed in a projector, and control of the present utility model is achieved by a control circuit of the projector.
Examples
When focusing is needed, the rotating motor is started to drive the gear on the rotating motor to rotate, further, the annular rotating gear on the rotating frame is meshed with the gear of the rotating motor, so that the rotating frame simultaneously rotates under the rotation of the gear, and further, in the rotating process, the sliding piece connected in the sliding groove rotates along with the sliding groove, at the moment, the lens rotates relative to the lens frame, and the lens is in threaded connection with the lens frame, so that the lens can extend relative to the lens frame and can extend out of the rotating frame when the lens rotates; when the lens is required to be retracted, the motor is rotated reversely.
Various modifications and variations of the present utility model will be apparent to those skilled in the art in light of the foregoing teachings and are intended to be included within the scope of the following claims.
Claims (5)
1. The automatic focusing lens for the projector is characterized by comprising a bracket, a lens assembly, a rotating frame and a rotating motor, wherein the rotating motor is arranged on one side of the bracket, the lens assembly is movably connected to the periphery of the inner wall of the rotating frame, and the rotating frame is sleeved in the bracket; the periphery of the outer wall of one side of the rotating frame is provided with annular rotating teeth, and a gear of the rotating motor is meshed with the annular rotating teeth.
2. The automatic focusing lens for projector according to claim 1, wherein the lens assembly comprises a lens frame and a lens, one end of the lens is movably connected to the lens frame, and the other end of the lens is movably connected to the periphery of the inner wall of the rotating frame.
3. The automatic focusing lens for projector according to claim 2, wherein sliding members are uniformly distributed on the periphery of the outer wall of the other end of the lens, sliding grooves corresponding to the sliding members are formed on the periphery of the inner wall of the rotating frame, and the sliding members are located in the sliding grooves to move so that the lens moves back and forth relative to the rotating frame and the lens frame.
4. An autofocus lens for a projector according to claim 2, wherein an outer wall of one end of the lens is provided with an external thread, and an inner wall of the lens holder is provided with an internal thread matching the external thread.
5. The auto-focus lens for a projector according to claim 3, wherein a forward distance of the lens is positively correlated with a length of the slide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320923920.5U CN220271643U (en) | 2023-04-20 | 2023-04-20 | Automatic focusing lens for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320923920.5U CN220271643U (en) | 2023-04-20 | 2023-04-20 | Automatic focusing lens for projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220271643U true CN220271643U (en) | 2023-12-29 |
Family
ID=89302689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320923920.5U Active CN220271643U (en) | 2023-04-20 | 2023-04-20 | Automatic focusing lens for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220271643U (en) |
-
2023
- 2023-04-20 CN CN202320923920.5U patent/CN220271643U/en active Active
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