CN213042105U

CN213042105U - Lens structure of projector

Info

Publication number: CN213042105U
Application number: CN202021254210.0U
Authority: CN
Inventors: 杨磊; 欧学明
Original assignee: Guangdong Guangmi Photoelectric Technology Co ltd
Current assignee: Guangdong Guangmi Photoelectric Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-04-23
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a projector lens structure, this projector lens include the fixing base, the camera lens sleeve, and the lens, focusing ring, gasket, optical filter, the camera lens outer lane, the fixing base, the camera lens sleeve, the lens, focusing ring can install in proper order, optical filter has the optical effect, the gasket is arranged in on the camera lens sleeve, the optical filter lid in on the gasket, and can be right the light that projection lens jetted out carries out certain optical property and rectifies, the camera lens outer lane is installed on optical filter, plays the effect of fixing, protection lens. The utility model discloses technical scheme can carry out optical correction to the light that the projector sent, realizes the application of more scenes.

Description

Lens structure of projector

Technical Field

The utility model relates to a projection equipment technical field, in particular to projector lens structure.

Background

In the existing projector equipment, how to design an optical filter on a lens is not generally considered, so that the use scene is single, when a client has multiple requirements, a plurality of projectors can be configured according to different requirements, the expansibility is low, and great waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a projector lens structure solves the technical problem that the aforesaid exists.

In order to achieve the above object, the present invention provides a lens structure of a projector, which includes a fixing base (1), a lens sleeve (2), a lens (3), a focusing ring (4), a spacer (5), an optical filter (6), and a lens outer ring (7); the lens barrel (2) is installed in the fixing seat (1), the lens (3) is installed inside the lens barrel (2), the focusing ring (4) is installed outside the lens barrel (2), the gasket (5) is installed on the lens barrel (2), and the optical filter (6) is installed between the gasket (5) and the outer ring (7) of the lens.

Optionally, the gasket (5) and the lens sleeve (2) are the same in size, and the bottom of the gasket (5) can be placed on the top of the lens sleeve (2) in an inosculating manner.

Optionally, the diameter of the optical filter (6) is consistent with the outer diameter of the gasket (5), and the optical filter can be placed on the gasket (5) and cannot fall off or loosen.

Optionally, a filter may be attached to the optical filter (6), and the filter may be disposed on any surface of the main body of the optical filter (6).

Optionally, the optical filter (6) is an integrally formed optical function filter.

Optionally, the optical filter (6) is replaceable.

Optionally, the lens outer ring (7) is provided with an internal thread, and the lens sleeve (2) is provided with an external thread matched with the internal thread.

The utility model discloses technical scheme is through carrying out redesign to projector lens structure, when projection lens throws out projection light, increases an optical lens piece and carries out optical correction to light, for example polarisation, blast, changes visual angle, prevents different effects such as blue light, increases the adaptability of projector to different scenes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a lens structure assembly of a projector according to the present invention;

FIG. 2 is a schematic diagram of an external view of a lens structure assembly of the projector according to the present invention;

fig. 3 is a cross-sectional view of the lens structure assembly of the projector

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a projector lens structure.

In the embodiment of the present invention, as shown in fig. 1, the projector assembly includes a fixing base 1, a lens sleeve 2, a lens 3, a focusing ring 4, a gasket 5, an optical filter 6, and a lens outer ring 7.

The utility model discloses technical scheme makes 3 protruding parts of lens obtain complete protection through increase gasket 5 on lens sleeve 2 to install optics filter 6 additional on gasket 5, when projection lens throws out projection light, optics filter 6 can carry out optical correction to light, thereby realizes the optical effect of needs.

In one embodiment, the gasket 5 and the lens sleeve 2 are the same in size, and the bottom of the gasket 5 can be placed on the top of the lens sleeve 2 in a matching manner.

The filtering structure of the optical filter 6 has a plurality of structures, for example, in an embodiment, the optical filter 6 is attached with a blue light filtering film, and the blue light filtering film is attached to the mirror surface of the optical filter 6. Wherein, optical filter 6 can be resin lens or glass lens etc. strains the blue light that the blue light membrane is arranged in the reflection projection light to reach the effect of filtering the blue light, of course, also can be equipped with on filtering the mould and prevent blue light factor, be used for absorbing the blue light, thereby reach the effect of filtering the blue light. The blue light prevention factor is a conventional substance, and is not described in detail herein. In addition, the blue light filtering film can be of a membrane structure, and the blue light filtering film can also be a coating film layer on the optical filter 6.

In one embodiment, the diameter of the optical filter 6 is the same as the outer diameter of the gasket 5, and the optical filter can be placed on the gasket 5 without falling off or loosening.

In order to protect the blue light filtering film, in one embodiment, the blue light filtering film is disposed on a side of the optical filter 6 facing the projection lens. So make to strain the blue light membrane and be located optical filter 6's inboard, can protect better and strain the blue light membrane, reduce and strain the possibility that the blue light membrane was damaged by foreign object collision, be favorable to improving optical filter 6's life.

In another embodiment, the optical filter 6 is a blue filter that is integrally formed. Need not set up on the optical filter 6 promptly and strain the blue light membrane, all add through the lens substrate at optical filter 6 and prevent the blue light factor for prevent in the optical filter 6 that the blue light factor of preventing can absorb the blue light in the projection light, thereby reach the effect of filtering the blue light. Simple structure like this, moreover through the mode of absorbing the blue light, can reduce the blue light and reflect towards the projection mirror.

Further, in an embodiment, the optical filter 6 may be a polarizing film, which changes the viewing angle of the light of the projector, and reduces the glare effect caused by reflection of the light when the projection surface has a certain reflection.

In another embodiment, the lens outer ring 7 is provided with an internal thread, and the lens sleeve 2 is provided with an external thread matching with the internal thread. The camera lens outer lane 7 and the lens sleeve 2 pass through the helicitic texture and connect promptly, so can guarantee the steadiness that the camera lens outer lane 7 and the lens sleeve 2 are connected, can back out the camera lens outer lane 7 when needs, change optical filter 6, convenience of customers uses.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A projector lens structure is characterized by comprising a fixed seat (1), a lens sleeve (2), a lens (3), a focusing ring (4), a gasket (5), an optical filter (6) and a lens outer ring (7); the lens barrel (2) is installed in the fixing seat (1), the lens (3) is installed inside the lens barrel (2), the focusing ring (4) is installed outside the lens barrel (2), the gasket (5) is installed on the lens barrel (2), and the optical filter (6) is installed between the gasket (5) and the outer ring (7) of the lens.

2. A projector lens structure as claimed in claim 1, characterized in that the spacer (5) and the lens sleeve (2) are of the same size, and the bottom of the spacer (5) can be fittingly placed on the top of the lens sleeve (2).

3. A projector lens structure as claimed in claim 1, characterized in that the diameter of the optical filter (6) is identical to the outer diameter of the spacer (5), and the optical filter can be placed on the spacer (5) without falling off or loosening.

4. A lens structure of a projector as claimed in claim 3, wherein a filter is attached to the optical filter (6) and can be disposed on any surface of the main body of the optical filter (6).

5. A projector lens structure as claimed in claim 3, characterized in that the optical filter (6) is an integrally formed optical function filter.

6. A projector lens arrangement as claimed in claim 3, characterized in that the optical filter (6) is exchangeable.

7. A lens structure for a projector according to claim 1, wherein said lens outer ring (7) is provided with an internal thread, and said lens sleeve (2) is provided with an external thread which is engaged with said internal thread.