CN220855436U - High-precision Fresnel lens for projector - Google Patents
High-precision Fresnel lens for projector Download PDFInfo
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- CN220855436U CN220855436U CN202322711054.6U CN202322711054U CN220855436U CN 220855436 U CN220855436 U CN 220855436U CN 202322711054 U CN202322711054 U CN 202322711054U CN 220855436 U CN220855436 U CN 220855436U
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- Prior art keywords
- fresnel lens
- projector
- main body
- projector main
- trigger
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- 238000004140 cleaning Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000007306 turnover Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000428 dust Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a high-precision Fresnel lens for a projector, which comprises the following components: a projector main body, a cleaning mechanism and a triggering mechanism; the projector body is provided with a Fresnel lens body; the cleaning mechanism is arranged on the projector main body and comprises a supporting frame, one side of the supporting frame is provided with a vertical plate, and a plurality of cleaning brushes which are uniformly distributed are arranged on the vertical plate; the triggering mechanism is arranged in the shrinkage cavity and comprises a triggering sliding plate, a pushing rod is fixedly connected to the triggering sliding plate, one end of the pushing rod is arranged outside the shrinkage cavity, a triggering ring is arranged on one side, away from the pushing rod, of the triggering sliding plate, and the triggering ring is fixed on the projector main body. According to the utility model, through setting the corresponding mechanism, the Fresnel lens can be cleaned regularly in the use process of the projector, so that too much dust is not easy to adhere to the outer surface of the Fresnel lens, the projected image is not easy to be influenced, and the probability of damage of the Fresnel lens is also reduced.
Description
Technical Field
The utility model belongs to the technical field of lenses, and particularly relates to a high-precision Fresnel lens for a projector.
Background
The Fresnel lens is also called a threaded lens, and is mostly made of thin sheets formed by injection molding of polyolefin materials, and also made of glass, one surface of the lens is a smooth surface, and concentric circles from small to large are inscribed on the other surface of the lens, and the textures of the Fresnel lens are designed according to the interference and interference of light and the requirements of relative sensitivity and receiving angle. The method is commonly used in projectors, and can effectively improve the conditions of darkening and blurring of corners, so that the projectors can project high-precision images.
However, due to the texture characteristics of the fresnel lens, dust is easily attached to the surface of the fresnel lens, and the dust easily affects the definition of the projected image. Therefore, the working personnel are required to clean regularly, which is time-consuming and labor-consuming, and the Fresnel lens is easy to damage during cleaning, so that larger economic loss is caused.
Accordingly, in order to solve the above-described problems, it is necessary to provide a high-precision fresnel lens for a projector.
Disclosure of utility model
The utility model aims to provide a high-precision Fresnel lens for a projector, which is used for solving the problem that dust on the Fresnel lens is difficult to clean in the prior art.
In order to achieve the above object, an embodiment of the present utility model provides the following technical solution:
A high-precision fresnel lens for a projector, comprising: a projector main body, a cleaning mechanism and a triggering mechanism;
the Fresnel lens body is arranged on the projector body, and a shrinkage cavity is cut on the projector body;
the cleaning mechanism is arranged on the projector main body and comprises a supporting frame, one side of the supporting frame is provided with a vertical plate, and a plurality of cleaning brushes which are uniformly distributed are arranged on the vertical plate;
The trigger mechanism is arranged in the shrinkage cavity, the trigger mechanism comprises a trigger slide plate, a push rod is fixedly connected to the trigger slide plate, one end of the push rod is arranged outside the shrinkage cavity, a trigger ring is arranged on one side, away from the push rod, of the trigger slide plate, and the trigger ring is fixed on the projector main body.
Further, fixedly connected with support column in the projector main part for fixed projector main part makes the difficult condition that rocks of projector main part appear, thereby the guarantee is projected the image definition, and the person of facilitating the use observes.
Further, a first motor is fixedly installed on the supporting frame and used for driving the transmission shaft and the vertical plates, and further provides power for driving the rotation of the plurality of cleaning brushes, and the transmission shaft is fixedly connected between the first motor and the vertical plates and used for supporting the vertical plates and the plurality of cleaning brushes and has the function of driving the vertical plates and the plurality of cleaning brushes to rotate.
Further, a supporting plate is arranged on the projector main body and used for supporting the second motor, so that the second motor is not easy to shake or unstable, and the second motor is arranged on the supporting plate and used for driving the overturning shaft to rotate and providing power for rotating the supporting frame;
The second motor is fixedly connected with a turnover shaft and is used for supporting the supporting frame and driving the supporting frame to rotate, and the supporting frame is fixed on the turnover shaft.
Further, the fixed shafts are connected between the two ends of the turnover shaft and the projector main body, and are used for fixing the two ends of the turnover shaft, so that the turnover shaft is not easy to shake or fall off, and the rotation of the turnover shaft is not easy to be influenced by the projector main body.
Further, be connected with supporting spring between trigger slide and the projector main part that is close to the one side of trigger ring for promote the trigger slide, make the trigger slide can promote the ejector pin and stretch out, and make the trigger slide be difficult for mutual contact with the trigger ring when not needing to clean, guarantee device's stability.
Compared with the prior art, the utility model has the following advantages:
According to the utility model, through setting the corresponding mechanism, the Fresnel lens can be cleaned regularly in the use process of the projector, so that too much dust is not easy to adhere to the outer surface of the Fresnel lens, the projected image is not easy to be influenced, and the probability of damage of the Fresnel lens is also reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a perspective view of a high-precision Fresnel lens for projectors according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the structure of FIG. 1 at A;
FIG. 3 is a cross-sectional view showing a part of the structure of a high-precision Fresnel lens for projectors according to an embodiment of the present utility model;
Fig. 4 is a schematic diagram of the structure at B in fig. 3.
In the figure: 1. projector body, 101, fresnel lens body, 102, support post, 2, cleaning mechanism, 201, support frame, 202, riser, 203, cleaning brush, 204, first motor, 205, drive shaft, 206, support plate, 207, second motor, 208, trip shaft, 209, fixed shaft, 3, trigger mechanism, 301, trigger slide, 302, push rod, 303, trigger ring, 304, support spring.
Detailed Description
The present utility model will be described in detail below with reference to the embodiments shown in the drawings. The embodiments are not intended to limit the utility model, but structural, methodological or functional modifications from the embodiments are within the scope of the utility model.
The utility model discloses a high-precision Fresnel lens for a projector, which is shown by referring to figures 1-4 and comprises the following components: a projector main body 1, a cleaning mechanism 2, and a trigger mechanism 3.
Referring to fig. 1-4, a fresnel lens body 101 is mounted on a projector body 1, so as to improve accuracy of projection influence, and prevent a dark condition, and a shrink cavity is cut on the projector body 1, so that a space is conveniently provided for triggering lifting movement of a slide plate 301. Fixedly connected with support column 102 on the projector main part 1 for fixed projector main part 1 makes the difficult condition that rocks of projector main part 1 appear, thereby the guarantee is projected the image definition, the observation of convenience of customers.
Referring to fig. 1 to 4, the cleaning mechanism 2 is provided on the projector main body 1, and the cleaning mechanism 2 includes a support frame 201 for supporting a first motor 204 and driving the first motor 204 to rotate. One side of the supporting frame 201 is provided with a vertical plate 202 for supporting a plurality of cleaning brushes 203, and the vertical plate 202 is provided with a plurality of uniformly distributed cleaning brushes 203 for cleaning the Fresnel lens main body 101 after rotation.
Referring to fig. 1-3, a first motor 204 is fixedly mounted on the supporting frame 201, and is used for driving a transmission shaft 205 and a vertical plate 202, so as to provide power for driving a plurality of cleaning brushes 203 to rotate. A transmission shaft 205 is fixedly connected between the first motor 204 and the vertical plate 202, and is used for supporting the vertical plate 202 and the plurality of cleaning brushes 203 and has the function of driving the vertical plate 202 to rotate.
Referring to fig. 1, a support plate 206 for supporting the second motor 207 is provided on the projector main body 1, so that the second motor 207 is not liable to shake or instability. A second motor 207 is mounted on the support plate 206 for driving the rotation shaft 208 to rotate, thereby providing power for rotating the support frame 201.
Specifically, the second motor 207 is fixedly connected with a turnover shaft 208, which is used for supporting the support frame 201 and driving the support frame 201 to rotate, and the support frame 201 is fixed on the turnover shaft 208. Fixed shafts 209 are connected between both ends of the turning shaft 208 and the projector main body 1, and are used for fixing both ends of the turning shaft 208, so that the turning shaft 208 is not easy to shake or fall off, and the rotation of the turning shaft 208 is not easy to be affected by the projector main body 1.
Referring to fig. 1-4, the trigger mechanism 3 is disposed in the shrink cavity, and the trigger mechanism 3 includes a trigger slide 301 for supporting a push rod 302, and is capable of starting the first motor 204 when the trigger slide 301 contacts the trigger ring 303, so as to conveniently and rapidly clean the surface of the fresnel lens main body 101. The trigger slide 301 is fixedly connected with a push rod 302, one end of the push rod 302 is arranged outside the shrinkage cavity, one side of the trigger slide 301 away from the push rod 302 is provided with a trigger ring 303, and the trigger ring 303 is fixed on the projector main body 1.
Referring to fig. 1 to 4, a supporting spring 304 is connected between one surface of the trigger slide 301, which is close to the trigger ring 303, and the projector main body 1, and is used for pushing the trigger slide 301, so that the trigger slide 301 can push the push rod 302 to extend, and the trigger slide 301 and the trigger ring 303 are not easy to contact each other when cleaning is not needed, and the stability of the device is ensured.
When the Fresnel lens main body 101 needs cleaning, a worker starts the second motor 207 to drive the turnover shaft 208 to rotate, and then drives the support frame 201 to rotate through the turnover shaft 208, so that the cleaning brush 203 approaches to the Fresnel lens main body 101, the support frame 201 also presses the push rod 302 in the rotating process, the trigger slide plate 301 can be pushed to move downwards through the push rod 302, and the trigger slide plate 301 is in contact with the trigger ring 303;
and when the trigger slide 301 contacts with the trigger ring 303, the first motor 204 is started, the first motor 204 drives the transmission shaft 205 to rotate, and then drives the vertical plate 202 and the cleaning brushes 203 to rotate, one ends of the cleaning brushes 203 are tightly attached to the Fresnel lens main body 101, the rotating cleaning brushes 203 can clean dust on the surface of the Fresnel lens main body 101, and after cleaning, the second motor 207 is started, so that the supporting frame 201 can rotate and reset.
The technical scheme shows that the utility model has the following beneficial effects:
According to the utility model, through setting the corresponding mechanism, the Fresnel lens can be cleaned regularly in the use process of the projector, so that too much dust is not easy to adhere to the outer surface of the Fresnel lens, the projected image is not easy to be influenced, and the probability of damage of the Fresnel lens is also reduced.
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 utility model may be embodied in other specific forms without departing from the spirit or essential characteristics 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.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and that such description is provided for clarity only, and that the technical solutions of the embodiments may be appropriately combined to form other embodiments that will be understood by those skilled in the art.
Claims (6)
1. A high-precision fresnel lens for a projector, comprising:
The projector comprises a projector main body (1), wherein a Fresnel lens main body (101) is arranged on the projector main body (1), and a shrinkage cavity is cut on the projector main body (1);
The cleaning mechanism (2) is arranged on the projector main body (1), the cleaning mechanism (2) comprises a supporting frame (201), a vertical plate (202) is arranged on one side of the supporting frame (201), and a plurality of cleaning brushes (203) which are uniformly distributed are arranged on the vertical plate (202);
The trigger mechanism (3) is arranged in the shrinkage cavity, the trigger mechanism (3) comprises a trigger slide plate (301), a push rod (302) is fixedly connected to the trigger slide plate (301), one end of the push rod (302) is arranged outside the shrinkage cavity, a trigger ring (303) is arranged on one side, away from the push rod (302), of the trigger slide plate (301), and the trigger ring (303) is fixed on the projector main body (1).
2. The high-precision fresnel lens for projectors according to claim 1, characterized in that the projector main body (1) is fixedly connected with a support column (102).
3. The high-precision Fresnel lens for the projector according to claim 1, wherein a first motor (204) is fixedly arranged on the supporting frame (201), and a transmission shaft (205) is fixedly connected between the first motor (204) and the vertical plate (202).
4. The high-precision fresnel lens for projectors according to claim 1, characterized in that the projector main body (1) is provided with a support plate (206), the support plate (206) is provided with a second motor (207), the second motor (207) is fixedly connected with a turnover shaft (208), and the support frame (201) is fixed on the turnover shaft (208).
5. The high-precision fresnel lens for projectors according to claim 4, characterized in that a fixed shaft (209) is connected between both ends of the turning shaft (208) and the projector main body (1).
6. The high-precision fresnel lens for projectors according to claim 1, characterized in that a supporting spring (304) is connected between one face of the trigger slide (301) close to the trigger ring (303) and the projector main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322711054.6U CN220855436U (en) | 2023-10-10 | 2023-10-10 | High-precision Fresnel lens for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322711054.6U CN220855436U (en) | 2023-10-10 | 2023-10-10 | High-precision Fresnel lens for projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220855436U true CN220855436U (en) | 2024-04-26 |
Family
ID=90746922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322711054.6U Active CN220855436U (en) | 2023-10-10 | 2023-10-10 | High-precision Fresnel lens for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220855436U (en) |
-
2023
- 2023-10-10 CN CN202322711054.6U patent/CN220855436U/en active Active
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