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a lens assembly

A technology of lens components and projection lenses, which is applied in the field of projectors, and can solve problems such as wrong image focus position, partial blurring, and affecting projection display quality

Active Publication Date: 2017-03-08
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of processing and assembly, the reflection angle of the curved mirror may change, and then there will be problems such as offset of the projected image, partial blurring, or uneven focus of the image, which will affect the quality of the projection display.

Method used

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] An embodiment of the present invention provides a lens assembly, such as Figure 1 to Figure 9 As shown, a first base 11 and a second base 12 are included, the first base 11 is provided with a curved mirror 13, the curved mirror 13 includes a reflective surface and a non-reflective surface, the second base 12 is provided with a projection lens 14, and the projection Lens 14 can project light on the reflective surface of curved reflector 13, and one side...

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Abstract

An embodiment of the present invention provides a lens assembly, which relates to the technical field of projectors and can flexibly adjust the reflection angle of a curved reflector. The lens assembly includes a first base and a second base, the first base is provided with a curved reflector, the curved reflector includes a reflective surface and a non-reflective surface, the second base is provided with a projection lens, and the non-reflective surface of the curved reflector One side is provided with a front cover, the front cover is fixed on the first base, the curved reflector includes a first adjustment end and a second adjustment end opposite to the first adjustment end; it also includes a first adjustment member, the front cover A first through hole is arranged on the top, and the first adjusting member passes through the first through hole, and the first adjusting member can drive the first adjusting end of the curved reflector to move toward or away from the projection lens; the first base is fixed with a limit Structure; the limit structure can limit the moving distance of the second adjustment end of the curved reflector in the direction of approaching or moving away from the projection lens. The present invention is used in projectors.

Description

technical field [0001] The invention relates to the technical field of projectors, in particular to a lens assembly. Background technique [0002] With the continuous advancement of science and technology, projection display technology has developed rapidly in recent years. Among them, short-focus projection has become the focus of recent research due to the advantages of small projection distance and large projection screen. [0003] Currently, one way to realize short-focus projection is reflective short-focus projection. That is, the image is projected on the curved mirror through the projection lens, and reflected to the projection screen through the curved mirror. In the prior art, in order to prevent dust or external force from adversely affecting the reflection of the curved reflector, the curved reflector is generally sealed and fixed together with the projection lens. However, in the process of processing and assembly, the reflection angle of the curved mirror ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14G03B21/28G02B7/182G02B7/198
Inventor 李兵
Owner HISENSE
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