CN111045177A - Novel lens assembly and projector - Google Patents
Novel lens assembly and projector Download PDFInfo
- Publication number
- CN111045177A CN111045177A CN201911360804.1A CN201911360804A CN111045177A CN 111045177 A CN111045177 A CN 111045177A CN 201911360804 A CN201911360804 A CN 201911360804A CN 111045177 A CN111045177 A CN 111045177A
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- China
- Prior art keywords
- lens
- sleeve
- wall
- ring
- convex
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a novel lens assembly, which belongs to the field of projectors and comprises a lens sleeve, an adjusting sleeve, a lens sleeve and a locking ring; the lens sleeve and the locking ring are sequentially arranged in the lens sleeve from front to back, the outer wall of the lens sleeve is in clearance fit with the inner wall of the lens sleeve, and the outer wall of the locking ring is in threaded connection with the inner wall of the lens sleeve; the front end of the inner wall of the lens sleeve is provided with a limiting convex ring, and the front end and/or the rear end of the inner wall of the lens sleeve is provided with a lens step; the lens clamping ring is pressed between the lens sleeve and the locking ring, and the inner wall of the lens clamping ring protrudes out of the inner wall of the lens step; the inner wall of the adjusting sleeve is in threaded connection with the outer wall of the lens sleeve, the outer wall of the adjusting sleeve is provided with a connecting convex ring, and a connecting hole is formed in the connecting convex ring. The invention has simple structure and reasonable design, can realize different types of lens assemblies by quickly replacing different lenses, is suitable for different occasions and projectors, and can finely adjust the position of the lens in the using process.
Description
Technical Field
The invention relates to the field of projectors, in particular to a novel lens assembly and a projector.
Background
The projection lamp, also known as a projector, is a device capable of projecting images or videos onto a curtain, and when the projection lamp is used for ordinary illumination, the projection lamp can be widely applied to outdoor lighting projects of lamps in families, offices, schools and entertainment places, and can also be used for creating effects of various lights and projecting required patterns.
Projectors typically include a chassis, a power source, a light source, a controller, a film winding mechanism, and a lens, and it is often necessary to replace different types of lenses for projection lamps depending on the requirements and applications of the projector. However, in the prior art, the lens is inconvenient to mount and fix on the lamp holder of the projection lamp, and it takes a long time to replace the lens each time. In addition, in the prior art, after a new projector is developed, an original lens is difficult to apply, and a new lens needs to be developed, which also leads to increase of use cost.
Disclosure of Invention
The invention aims to provide a novel lens assembly, aiming at solving the problems that the lens for a projection lamp in the prior art is difficult to replace quickly and cannot be well suitable for a new projector.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a novel lens assembly comprises a lens sleeve, an adjusting sleeve, a lens sleeve and a locking ring; the lens sleeve and the locking ring are sequentially arranged in the lens sleeve from front to back, the outer wall of the lens sleeve is in clearance fit with the inner wall of the lens sleeve, and the outer wall of the locking ring is in threaded connection with the inner wall of the lens sleeve; the front end of the inner wall of the lens sleeve is provided with a limiting convex ring, and the front end and/or the rear end of the inner wall of the lens sleeve is provided with a lens step; the lens clamping ring is pressed between the lens sleeve and the locking ring, and the inner wall of the lens clamping ring protrudes out of the inner wall of the lens step; the inner wall of the adjusting sleeve is in threaded connection with the outer wall of the lens sleeve, the outer wall of the adjusting sleeve is provided with a connecting convex ring, and a connecting hole is formed in the connecting convex ring.
Preferably, the spacing bulge loop with the level glass is pressed to be equipped with between the lens cover, set up in install biconcave mirror, light ring and the concave-convex mirror that distributes from the front to the back in proper order on the lens step of lens cover inner wall rear end, the lens clamping ring with the biconcave mirror is pressed to be equipped with between the check lock ring.
Preferably, the lens pressing ring is pressed between the lens sleeve and the biconvex lens, and the outer wall of the lens pressing ring is in clearance fit with the inner wall of the lens sleeve.
Another kind is preferred, spacing bulge loop with the convex-concave mirror has been pressed between the lens cover, set up in install biconvex mirror on the lens step of lens cover inner wall front end, set up in install biconcave mirror on the lens step of lens cover inner wall rear end, the lens clamping ring with the plano-convex mirror has been pressed between the check lock ring.
Preferably, the rear end of the inner wall of the lens sleeve is also provided with a lens compression ring installation step, the diameter of the lens compression ring installation step is larger than that of the lens step, and the lens compression ring is pressed between the lens sleeve and the plano-convex lens.
Preferably, the number of the connecting holes is a plurality, and the connecting holes are circumferentially and uniformly distributed.
Preferably, the connecting hole is arc-shaped, and the axis of the arc-shaped is overlapped with the axis of the lens sleeve.
Preferably, the length of the thread section on the outer wall of the lens sleeve is greater than the length of the thread section on the inner wall of the adjusting sleeve.
The invention also discloses a projector which specifically comprises the novel lens assembly.
By adopting the technical scheme, due to the arrangement of the lens sleeve, the locking ring, the lens pressing ring and the lens sleeve upper limiting convex ring, a plurality of lenses can form lens types suitable for different occasions and different projectors in a combined and matched mode, and the lenses on the inner wall of the lens sleeve can be conveniently replaced only by disassembling and assembling the locking ring; and due to the arrangement of the adjusting sleeve in threaded connection with the lens sleeve and the connecting hole in the adjusting sleeve, on one hand, the lens sleeve carrying the lens can be adjusted in a rotating mode relative to the projector frame to achieve the purpose of fine adjustment, and on the other hand, the lens sleeve can be rapidly replaced through the threaded connection mode to achieve the purpose of rapidly replacing different types of lens assemblies in the using process of the projector.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
In the figure, 1-lens sleeve, 2-adjusting sleeve, 3-lens sleeve, 4-locking ring, 5-lens compression ring, 6-convex plano-mirror, 7-double concave mirror, 8-aperture, 9-concave-convex mirror, 10-double convex mirror, 11-limit convex ring, 12-convex-concave mirror and 13-plano-convex mirror.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.
Example one
As shown in fig. 1, the present invention firstly provides a novel lens assembly, which comprises a lens sleeve 1, an adjusting sleeve 2, a lens sleeve 3 and a locking ring 4. Wherein, foretell lens sleeve 1 is the cylinder type, and lens sleeve 3 and lock ring 4 set gradually in lens sleeve 1 from the front to back, and thereby the outer wall of lens sleeve 3 and the inner wall clearance fit of lens sleeve 1 make the removal that lens sleeve 3 can be smooth and easy, and the outer wall of lock ring 4 and the inner wall threaded connection of lens sleeve 1.
The front end of the inner wall of the lens sleeve 1 is provided with a limiting convex ring 11, the limiting convex ring 11 is integrally formed on the inner wall of the lens sleeve 1, and the limiting convex ring 11 is used for preventing the lens from falling off from the front end of the lens sleeve 1. The front end and/or the rear end of the inner wall of the lens sleeve 3 is/are provided with a lens step for installing a lens. Still include lens clamping ring 5, lens clamping ring 5 is located 3 rear end one sides of lens cover, and lens clamping ring 5 pressure equipment is between lens cover 3 and lock ring 4 to the inner wall that sets up this lens clamping ring 5's inner wall protrusion foretell lens step compresses tightly the lens on the lens step through lens clamping ring 5, prevents that the lens from droing.
The inner wall of the adjusting sleeve 2 is in threaded connection with the outer wall of the lens sleeve 1, and the length of the thread section on the outer wall of the lens sleeve 1 is larger than that of the thread section on the inner wall of the adjusting sleeve 2. The outer wall of the adjusting sleeve 2 is also provided with a connecting convex ring 21, and the connecting convex ring 21 is provided with a connecting hole 22. In this embodiment, a plurality of connection holes 22 are first provided, the plurality of connection holes 22 are circumferentially and uniformly distributed, and the connection convex ring 21 is integrally formed on the adjustment sleeve 2. The coupling flange 21 functions as a flange. In another embodiment, the connecting hole 22 may be arc-shaped, and the axis of the arc-shaped connecting hole coincides with the axis of the lens sleeve 1.
In this embodiment, a convex flat mirror 6 is press-fitted between the limiting convex ring 11 and the lens sleeve 3, and the convex flat mirror 6 refers to a lens whose front end surface is a convex surface and whose rear end surface is a plane. In this embodiment, the rear end of the inner wall of the lens sleeve 3 is provided with the lens step, and the lens step is provided with a biconcave lens 7, an aperture 8 and a concave-convex lens 9 which are sequentially distributed from front to back, the biconcave lens 7 refers to a lens whose front end surface and rear end surface are both concave surfaces, and the concave-convex lens 9 refers to a lens whose front end surface is a concave surface and whose rear end surface is a convex surface. In this embodiment, a biconvex mirror 10 is press-fitted between the lens pressing ring 5 and the locking ring 4, and the biconvex mirror 10 refers to a lens whose front end surface and rear end surface are both convex surfaces. And in this embodiment, the lens pressing ring 5 is press-fitted between the lens sleeve 3 and the biconvex lens 10, and the outer wall of the lens pressing ring 5 is in clearance fit with the inner wall of the lens sleeve 3.
The result of the combination of above-mentioned lens is, the novel lens subassembly of this embodiment constitutes standard lens subassembly, and standard lens subassembly is one kind and is applicable to conventional projection lamp projection distance (30-50 meters), adopts the static projection technique of physics, and the image on the film negative is passed through with the light source to the projector, and the lens combination of rethread front end is finely tuning the lens and is reaching the standard lens of comparatively ideal formation of image effect, has obtained comparatively extensive popularization and adoption in actual market application.
When in use, the convex plane mirror 6 is firstly arranged in the lens sleeve 1, and the convex surface of the convex plane mirror is enabled to face forwards; then the lens sleeve 3 is arranged in the lens sleeve 1, and the steps of the lens on the lens sleeve face backwards; then the biconcave lens 7, the aperture 8 and the concave-convex lens 9 are sequentially arranged on the lens steps of the lens sleeve 3 according to the correct front-back direction; then the lens compression ring 5 is arranged in the lens sleeve 1, so that the front end of the lens compression ring is abutted against the concave-convex lens 9; then the locking ring 4 is screwed, so that the front components are pressed together; and finally, screwing the lens sleeve 1 provided with the lens on the adjusting sleeve 2 by screw threads. Therefore, the novel lens assembly provided by the invention is convenient to mount and dismount, and different imaging effects can be achieved by filling different lenses, so that the novel lens assembly is suitable for different use occasions and projectors; and the position of the lens can still be finely adjusted by rotating the lens sleeve 1 after the lens is installed on the projector.
Example two
The difference from the first embodiment is that: in the present embodiment, as shown in fig. 2, a convex-concave mirror 12 is pressed between the limiting convex ring 11 and the lens sleeve 3, and the convex-concave mirror 12 refers to a lens with a convex front end and a concave rear end. In this embodiment, the front end and the rear end of the inner wall of the lens sleeve 3 are provided with the lens steps, the biconvex lens 10 is arranged on the lens step at the front end of the inner wall of the lens sleeve 3, and the biconcave lens 7 is arranged on the lens step at the rear end of the inner wall of the lens sleeve 3. And a plano-convex mirror 13 is pressed between the lens pressing ring 3 and the locking ring 4. Specifically in this embodiment, the rear end of the inner wall of the lens sleeve 3 is further provided with a lens press ring installation step, the diameter of the lens press ring installation step is larger than that of the lens step, the lens press ring 5 is pressed on the lens sleeve 3 by the flat convex lens 13, and meanwhile, the flat convex lens 13 is pressed on the lens press ring 5 by the locking ring 4.
It is understood that the concave-convex mirror 12 in the present embodiment and the concave-convex mirror 9 in the first embodiment can be replaced by a reverse manner; the flat mirror 13 in the present embodiment and the convex flat mirror 6 in the first embodiment may be replaced by an inversion method.
As a result of the above lens combination, the novel lens assembly of this embodiment is a wide-angle lens assembly, which is a wide-angle lens that is suitable for being limited by the projection distance of the projection lamp (about 15 meters), and is designed to achieve the effect of projection image and the standard image range, and is developed independently. The physical static projection technology is adopted, namely, a projector passes a light source through an image on a film negative, and then the focal length of a lens is adjusted through the lens combination at the front end, so that a relatively ideal imaging effect is achieved.
The invention also discloses a projector which specifically comprises the novel lens assembly provided by any one of the embodiments.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (9)
1. A novel lens component is characterized in that: comprises a lens sleeve, an adjusting sleeve, a lens sleeve and a locking ring; the lens sleeve and the locking ring are sequentially arranged in the lens sleeve from front to back, the outer wall of the lens sleeve is in clearance fit with the inner wall of the lens sleeve, and the outer wall of the locking ring is in threaded connection with the inner wall of the lens sleeve; the front end of the inner wall of the lens sleeve is provided with a limiting convex ring, and the front end and/or the rear end of the inner wall of the lens sleeve is provided with a lens step; the lens clamping ring is pressed between the lens sleeve and the locking ring, and the inner wall of the lens clamping ring protrudes out of the inner wall of the lens step; the inner wall of the adjusting sleeve is in threaded connection with the outer wall of the lens sleeve, the outer wall of the adjusting sleeve is provided with a connecting convex ring, and a connecting hole is formed in the connecting convex ring.
2. The novel lens assembly of claim 1, wherein: spacing bulge loop with the level of convexity mirror has been pressed between the lens cover, set up in install biconcave mirror, light ring and the concave-convex mirror that distributes in proper order from the front to the back on the lens step of lens cover inner wall rear end, the lens clamping ring with the biconcave mirror is pressed between the check lock ring.
3. The novel lens assembly of claim 2, wherein: the lens pressing ring is pressed between the lens sleeve and the biconvex lens, and the outer wall of the lens pressing ring is in clearance fit with the inner wall of the lens sleeve.
4. The novel lens assembly of claim 1, wherein: the limiting convex ring and the concave-convex lens are pressed between the lens sleeves, the biconvex lens is arranged on the lens step at the front end of the inner wall of the lens sleeve, the biconcave lens is arranged on the lens step at the rear end of the inner wall of the lens sleeve, and the flat-convex lens is pressed between the lens pressing ring and the locking ring.
5. The novel lens assembly of claim 4, wherein: the rear end of the inner wall of the lens sleeve is also provided with a lens compression ring installation step, the diameter of the lens compression ring installation step is larger than that of the lens step, and the lens compression ring is pressed between the lens sleeve and the plano-convex lens.
6. The novel lens assembly of claim 1, wherein: the connecting holes are distributed uniformly in the circumferential direction.
7. The novel lens assembly of claim 1, wherein: the connecting hole is arc-shaped, and the axis of the arc-shaped is superposed with the axis of the lens sleeve.
8. The novel lens assembly of claim 1, wherein: the length of the thread section on the outer wall of the lens sleeve is larger than that of the thread section on the inner wall of the adjusting sleeve.
9. A projector, characterized in that: including the novel lens assembly of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911360804.1A CN111045177A (en) | 2019-12-25 | 2019-12-25 | Novel lens assembly and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911360804.1A CN111045177A (en) | 2019-12-25 | 2019-12-25 | Novel lens assembly and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111045177A true CN111045177A (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911360804.1A Pending CN111045177A (en) | 2019-12-25 | 2019-12-25 | Novel lens assembly and projector |
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| CN (1) | CN111045177A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443452A (en) * | 2020-05-25 | 2020-07-24 | 深圳市沃特隆科技有限公司 | Hundred million pixel turning lens with precision improving function and use method thereof |
-
2019
- 2019-12-25 CN CN201911360804.1A patent/CN111045177A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443452A (en) * | 2020-05-25 | 2020-07-24 | 深圳市沃特隆科技有限公司 | Hundred million pixel turning lens with precision improving function and use method thereof |
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Effective date of registration: 20230712 Address after: 201400 floor 5, building 11, No. 6055, Jinhai highway, Fengxian District, Shanghai Applicant after: Shanghai Xingxun Technology Co.,Ltd. Address before: 200241 Room 355, Building 3, No. 1800, Jiangchuan Road, Minhang District, Shanghai Applicant before: SHANGHAI XINGXUN ELECTRIC Co.,Ltd. |