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projection device

A projection device and projection technology, applied in projection devices, optics, instruments, etc., can solve problems affecting the integrity of projected images

Active Publication Date: 2016-01-06
YOUNG OPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, the projection beam of the micro projector needs to have an offset relative to the optical axis of the projection lens, so that the projection beam can be completely projected onto the projection surface without being projected on the desktop, which will affect the integrity of the projected image. sex

Method used

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Embodiment Construction

[0035] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed descriptions of multiple embodiments with reference to the drawings. The directional terms mentioned in the following embodiments, such as up, down, front, back, left, right, etc., are only directions referring to the drawings. Accordingly, the directional terms are used to illustrate, not to limit, the invention.

[0036] figure 2 It is a schematic diagram of a projection device according to an embodiment of the present invention. Please refer to figure 2 The projection device 100 of this embodiment is, for example, a picoprojector and includes a casing 110 , a light output unit 120 and a reflective element 130 . The light emitting unit 120 is disposed in the casing 110 and emits a first projection light beam L1'. The housing 110 has an opening 112a. The reflective element 130 is, for example, a reflective mirror and is di...

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Abstract

A projection apparatus includes a casing with an opening, a light-emitting unit in the casing and emitting a first projection beam, and a reflective component in the casing and on a transmission path of the first projection beam. The first projection beam reflected by the reflective component becomes a second projection beam projected out via the opening along a projection direction. The light-emitting unit includes a projection lens with an optical axis between a center of the reflective component and the opening of the casing.

Description

technical field [0001] The present invention relates to an optical device, and in particular to a projection device. Background technique [0002] Recently, the development of pico projection technology has attracted the attention of many people, and pico projectors have gradually become the mainstream of the personal digital market in the future. All types of electronic products are developing toward high speed, high performance, and thin, light and compact. The micro projector has the advantages of being portable and unlimited in use, and can be integrated into handheld electronic devices such as mobile phones or digital cameras. [0003] Generally speaking, the projection beam of the micro projector needs to have an offset relative to the optical axis of the projection lens, so that the projection beam can be completely projected onto the projection surface without being projected on the desktop, which will affect the integrity of the projected image. sex. exist figure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/28G03B21/00
CPCG03B21/28
Inventor 张研博陈惠萍
Owner YOUNG OPTICS