CN211577641U - Lens device for free-form surface ultra-short focus projector - Google Patents

Abstract

The utility model discloses a be used for lens device on super short burnt projecting apparatus of free-form surface contains the lens and is used for fixing the set casing of lens, wherein, the set casing communicates with each other for both ends, and inside is equipped with the cylinder structure of passageway, follows the surface of the radial direction of set casing is equipped with the concave part, be equipped with the retaining member on the concave part, the set casing contains first semi-circular casing and lower semi-circular casing, first semi-circular casing with protruding strip is located on lower semi-circular casing contact jaw surface, just lower semi-circular casing with first semi-circular casing contact jaw surface is equipped with the cooperation the recess of protruding strip, prior art compares, has reasonable in design, convenient to detach, and the installation can save advantages such as cost.

Description

Lens device for free-form surface ultra-short focus projector

Technical Field

The utility model particularly relates to a be used for lens device on free-form surface ultrashort burnt projecting apparatus.

Background

With the development of science and technology, people often can apply to projection equipment when meeting, especially the ultrashort burnt projecting apparatus of free curved surface, because of its adoption all solid-state laser light source, can long-time continuous service, the life-span is up to 20000 hours. In order to guarantee to put in to the screen on the image more clear, need change the camera lens of projecting apparatus, because lens and set casing fixed connection in the camera lens, the design is unreasonable, and be not convenient for dismantle, the installation, when the lens is damaged, need the professional to maintain, the influence is used, increases the cost simultaneously.

How to provide a lens device on being used for ultrashort burnt projecting apparatus of free-form surface, have reasonable in design, convenient to detach, the installation can save the cost, is the problem that will solve at present.

Disclosure of Invention

The utility model aims at providing a be used for lens device on free-form surface ultrashort burnt projecting apparatus has reasonable in design, convenient to detach, and the installation can save advantages such as cost.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for lens device on super short burnt projecting apparatus of free-form surface, contains the lens and is used for fixing the set casing of lens, wherein, the set casing communicates with each other for both ends, and inside is equipped with the cylinder structure of passageway follows the surface of set casing radial direction is equipped with the concave part, be equipped with the retaining member on the concave part, the set casing contains first semicircle casing and lower semicircle casing, first semicircle casing with protruding strip is located on lower semicircle casing contact jaw surface, just lower semicircle casing with first semicircle casing contact jaw surface is equipped with the cooperation the recess of protruding strip.

Further, the protruding strips and the upper semicircular shell are integrally formed, or are mutually independent parts.

Further, when the protruding strips and the upper semicircular shell are mutually independent parts, the protruding strips and the upper semicircular shell are connected through an adhesive.

Furthermore, the appearance of the protruding strip is of a cuboid structure, and the chamfer far away from one side of the upper semicircular shell is an arc chamfer.

Further, the length of the groove along the extending direction of the two ends of the channel is equal to the length of the lower semicircular shell.

Furthermore, the sealing element which is tightly attached to the groove is arranged in the groove.

Further, the sealing element is a colloid strip.

Furthermore, the locking piece is an elastic rubber band.

Furthermore, the inner side of the fixed shell is provided with a fixed groove for fixing the lens, and the periphery of the lens is positioned in the fixed groove and is tightly attached to the inner side of the fixed groove.

Compared with the prior art, the beneficial effects of the utility model are that: the lens device for the free-form surface ultra-short focus projector is composed of a lens and a fixed shell for fixing the lens. Divide into first semicircle casing and lower semicircle casing with the set casing, can conveniently part, change the lens, the surface of set casing radial direction is equipped with the concave part, be equipped with the retaining member on the concave part, will first semicircle casing and lower semicircle casing fixed through the retaining member, because the existence of concave part, can effectively fix the retaining member, avoid the retaining member to be in set casing surface removal. Protruding strip is located on last semi-circular shell with lower semi-circular shell contact jaw surface, just lower semi-circular shell with last semi-circular shell contact jaw surface is equipped with the cooperation the recess of protruding strip, protruding strip and recess realize unsmooth cooperation, and easy to assemble avoids both to take place the displacement removal simultaneously. The whole structure has the advantages of reasonable design, convenient disassembly and assembly, cost saving and the like.

Drawings

Fig. 1 is a front view of the lens device of the present invention;

fig. 2 is a perspective view of the concave portion of the present invention;

FIG. 3 is a front view of the upper semicircular shell of the present invention;

FIG. 4 is a front view of the lower semi-circular housing of the present invention;

FIG. 5 is a perspective view of the locking member of the present invention;

FIG. 6 is a perspective view of the raised strip of the present invention;

fig. 7 is a left side view of the fixing groove of the present invention;

fig. 8 is a front view of the fixing groove of the present invention.

Description of reference numerals:

1 recess 2 locking piece

3 upper semicircular shell and 4 lower semicircular shell

5 raised strips and 6 grooves

7 sealing element 8 fixing groove

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the spirit of the present invention will be described in detail with reference to the accompanying drawings, and any person skilled in the art can change or modify the techniques taught by the present invention without departing from the spirit and scope of the present invention after understanding the embodiments of the present invention.

The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.

As used herein, the terms "first," "second," …, etc. do not denote any order or sequential importance, nor are they used to limit the invention, but rather are used to distinguish one element from another or from another element or operation described in the same technical language.

With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.

As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.

As used herein, "and/or" includes any and all combinations of the described items.

As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.

Certain words used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.

The embodiment of the utility model provides a lens device on being used for free-form surface ultrashort burnt projecting apparatus, as figure 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 are shown, contain the lens and be used for the set casing of fixed lens, wherein, the set casing communicates with each other for both ends, inside is equipped with the cylinder structure of passageway, surface along the set casing radial direction is equipped with concave part 1, be equipped with retaining member 2 on the concave part 1, the set casing contains first semicircle casing 3 and the 4 bodies of second semicircle casing, protruding strip 5 is located on first semicircle casing 3 and the 4 contact jaw surfaces of lower semicircle casing, and lower semicircle casing 4 is equipped with the recess 6 of cooperation protruding strip 5 with first semicircle casing 3 contact jaw surfaces.

Specifically, the method comprises the following steps: the lens device for the free-form surface ultra-short focus projector is composed of a lens and a fixed shell for fixing the lens. Divide into first semicircle casing 3 and lower semicircle casing 4 with the set casing, can conveniently part, change the lens, the surface of the radial direction of set casing is equipped with concave part 1, is equipped with retaining member 2 on the concave part 1, and first semicircle casing 3 is fixed with lower semicircle casing 4 through retaining member 2, because the existence of concave part 1, can effectively fix locking 2, avoids retaining member 2 to be in the set casing surface removes. Protruding strip 5 is located on last semi-circular shell 3 and lower semi-circular shell 4 contact tip surface, and semi-circular shell 4 is equipped with the recess 6 of cooperation protruding strip 5 with last semi-circular shell 3 contact tip surface down, and protruding strip 5 realizes unsmooth cooperation with recess 6, and easy to assemble avoids both to take place the displacement removal simultaneously for both connect inseparabler, and is fixed more firm. The whole structure has the advantages of reasonable design, convenient disassembly and assembly, cost saving and the like.

In order to make the protruding strips 5 and the upper semicircular shell 3 tightly connected and firmly fixed, the protruding strips 5 and the upper semicircular shell 3 can be connected by a bonding agent, it should be noted that in this embodiment, the protruding strips 5 and the upper semicircular shell 3 are described as separate parts, and in the practical application process, in order to make the protruding strips 5 and the upper semicircular shell 3 more tightly connected and firmly fixed, the protruding strips 5 and the upper semicircular shell 3 are integrally formed, and the process is not described here.

It should be noted that, as shown in fig. 4 and fig. 6, in order to ensure the stable structure of the protruding strip 5, the protruding strip 5 is shaped like a rectangular parallelepiped, and in addition, in order to facilitate the protruding strip 5 to enter the groove 6, for example, the chamfer of the protruding strip 5 on the side away from the upper semicircular shell 3 is a circular arc chamfer.

It is further noted that for the convenience of the protruding strips 5 being connected to the grooves 6, for example, the length of the grooves 6 is equal to the length of the lower semicircular shell 4 along the extension direction of the two ends of the channel.

It should be noted that, as shown in fig. 1, 3 and 4, in order to connect the upper semicircular shell 3 and the lower semicircular shell 4 more tightly and avoid the wear caused by the direct contact between the two during the installation process, for example, a sealing member is disposed in the groove 6 and tightly contacts with the groove 6. In the present embodiment, the sealing member 7 is a gel strip. Further, for convenience of fixing, the locking member 2 is, for example, an elastic rubber band.

In addition, as shown in fig. 7 and 8, in order to fix the lens inside the fixing housing and prevent the lens from shaking, for example, a fixing groove 8 for fixing the lens is provided inside the fixing housing, and the periphery of the lens is located in the fixing groove 8 and is tightly attached to the inside of the fixing groove.

The foregoing is only an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims (9)

1. The utility model provides a be used for lens device on free-form surface ultrashort burnt projecting apparatus which characterized in that: contain the lens and be used for fixing the set casing of lens, wherein, the set casing communicates with each other for both ends, and inside is equipped with the cylinder structure of passageway, follows the surface of set casing radial direction is equipped with the concave part, be equipped with the retaining member on the concave part, the set casing contains first semicircle casing and lower semicircle casing, first semicircle casing with protruding strip is located on lower semicircle casing contact tip surface, just lower semicircle casing with first semicircle casing contact tip surface is equipped with the cooperation the recess of protruding strip.

2. The apparatus of claim 1, wherein: the protruding strips and the upper semicircular shell are integrally formed or are mutually independent parts.

3. The apparatus of claim 2, wherein: when the protruding strips and the upper semicircular shell are mutually independent parts, the protruding strips and the upper semicircular shell are connected through an adhesive.

4. The apparatus of claim 1, wherein: the protruding strip is of a cuboid structure, and the chamfer far away from one side of the upper semicircular shell is an arc chamfer.

5. The apparatus of claim 1, wherein: the length of the groove is equal to that of the lower semicircular shell along the extending direction of the two ends of the channel.

6. The apparatus of claim 1, wherein: and a sealing piece which is tightly attached to the groove is arranged in the groove.

7. The apparatus of claim 6, wherein: the sealing element is a colloid strip.

8. The apparatus of claim 1, wherein: the locking piece is an elastic rubber band.

9. The apparatus of claim 1, wherein: the inner side of the fixed shell is provided with a fixed groove for fixing the lens, and the periphery of the lens is positioned in the fixed groove and is tightly attached to the inner side of the fixed groove.

Images