CN217425912U - Focusing structure of projector - Google Patents
Focusing structure of projector Download PDFInfo
- Publication number
- CN217425912U CN217425912U CN202220270585.9U CN202220270585U CN217425912U CN 217425912 U CN217425912 U CN 217425912U CN 202220270585 U CN202220270585 U CN 202220270585U CN 217425912 U CN217425912 U CN 217425912U
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- Prior art keywords
- screw rod
- lens
- sleeve
- fixing seat
- focusing structure
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Abstract
The utility model discloses a projecting apparatus focusing structure, include: the lens comprises a lens, a sleeve, a screw rod fixing seat and a screw rod, wherein the lens is sleeved outside the sleeve, and the screw rod fixing seat is fixed on the sleeve through a bolt; the screw rod is rotatably arranged in the screw rod fixing seat through threads, and the buckling position at the top end of the screw rod is vertically arranged in the clamping groove of the lens. The utility model discloses a regulation of making a round trip of camera lens distance is realized to rotatory mode, has changed traditional camera lens through the tensile mode focus regulation in front and back, realizes the regulation of focus through the rotation, will make the camera lens displacement more accurate.
Description
Technical Field
The utility model relates to a projecting apparatus technical field, more specifically the utility model relates to a projecting apparatus focusing structure that says so.
Background
When the projector is actually used, due to the change of the projection distance, the focal length of the lens needs to be adjusted to obtain the definition of the best projection picture; typically the projector is adjusted for direct lens extension.
The mode of direct tensile camera lens focus regulation that uses at present, when the focusing stroke is shorter, focusing precision is relatively poor, and the focusing handle often is shorter, needs additionally to increase the mechanism drive focusing handle when designing complete machine shell.
The utility model discloses a mode through lead screw thread rotation realizes the camera lens focusing that becomes more meticulous, and the focusing precision is higher, and the focusing handle stretches out the ray apparatus outside, reduces the required part quantity of complete machine shell structural design.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a projecting apparatus focusing structure truns into circular motion to linear motion through the lead screw to linear motion carries out focus control around the realization camera lens.
In order to achieve the above object, the utility model provides a following technical scheme: a projector focusing structure, comprising: the lens comprises a lens, a sleeve, a screw rod fixing seat and a screw rod, wherein the lens is sleeved outside the sleeve, and the screw rod fixing seat is fixed on the sleeve through a bolt; the screw rod is rotatably installed in the screw rod fixing seat through threads, and the buckling position at the top end of the screw rod is vertically installed in the clamping groove of the lens.
Preferably, in the above projector focusing structure, a rotating handle for increasing friction is provided at a tail end of the screw rod.
Preferably, in the above projector focusing structure, the screw rod fixing seat is mounted at the bottom of the sleeve.
Preferably, in the above projector focusing structure, the screw rod is disposed outside the optical engine.
According to the technical scheme, compare with prior art, the utility model provides a projecting apparatus focusing structure realizes the focusing that becomes more meticulous of camera lens through the rotatory mode of lead screw thread, and the focusing precision is higher, and the focusing handle stretches out the ray apparatus outside, reduces the required part quantity of complete machine shell structural design.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front schematic view of a focusing structure of a projector.
Fig. 2 is a schematic side view of a focusing structure of a projector.
In the figure: 1. a lens; 2. a sleeve; 3. a screw rod fixing seat; 4. and a screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-2, a focusing structure of a projector according to the present invention includes: the lens comprises a lens 1, a sleeve 2, a screw rod fixing seat 3 and a screw rod 4, wherein the lens 1 is sleeved outside the sleeve 2, and the screw rod fixing seat 3 is fixed on the sleeve 2 through a bolt; the screw rod 4 is rotatably installed in the screw rod fixing seat 3 through threads, and a buckling position at the top end of the screw rod 4 is vertically installed in a clamping groove of the lens 1.
Preferably, in the above projector focusing structure, a rotating handle for increasing friction is provided at the tail end of the screw rod 4.
Preferably, in the above projector focusing structure, the lead screw fixing seat 3 is installed at the bottom of the sleeve 2.
Preferably, in the above projector focusing structure, the screw rod 4 is disposed outside the optical engine.
The utility model discloses the operation explanation: the lens 1 is sleeved on the outer side of the sleeve 2 and can slide relatively, the screw rod 4 is rotatably arranged in the screw rod fixing seat 3 through threads, the buckling position at the top end of the screw rod 4 is vertically arranged in the clamping groove of the lens 1, when the screw rod 4 is rotated, the buckling position of the screw rod 4 rotates in the clamping groove, and when the screw rod 4 moves back and forth, the lens 1 is pushed/pulled to move back and forth, so that the function of adjusting the focal length of the lens 1 is realized.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A projector focusing structure, comprising: the lens comprises a lens, a sleeve, a screw rod fixing seat and a screw rod, wherein the lens is sleeved outside the sleeve, and the screw rod fixing seat is fixed on the sleeve through a bolt; the screw rod is rotatably arranged in the screw rod fixing seat through threads, and the buckling position at the top end of the screw rod is vertically arranged in the clamping groove of the lens.
2. The projector focusing structure of claim 1, wherein the rear end of the lead screw is provided with a rotation handle for increasing friction.
3. The projector focusing structure of claim 1, wherein the lead screw fixing seat is installed at the bottom of the sleeve.
4. The projector focusing structure of claim 1, wherein the lead screw is disposed outside the optical engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220270585.9U CN217425912U (en) | 2022-02-10 | 2022-02-10 | Focusing structure of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220270585.9U CN217425912U (en) | 2022-02-10 | 2022-02-10 | Focusing structure of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217425912U true CN217425912U (en) | 2022-09-13 |
Family
ID=83176559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220270585.9U Active CN217425912U (en) | 2022-02-10 | 2022-02-10 | Focusing structure of projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217425912U (en) |
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2022
- 2022-02-10 CN CN202220270585.9U patent/CN217425912U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |