Unlock instant, AI-driven research and patent intelligence for your innovation.

Projecting device with high light-engine efficiency

A projection device and projection mirror technology, applied in projection devices, optics, instruments, etc., can solve the problems of reduced volume, large projection device size, insufficient brightness, etc.

Active Publication Date: 2012-01-04
QISDA OPTRONICS (SUZHOU) CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to reduce the size, the micro-projection device mostly adopts the design of single light path of LED light source module, but its disadvantage is that the brightness is insufficient
However, if two or more light source modules are used to form a single optical path using a dichroic combiner in order to improve brightness, the volume will not be effectively reduced.
For example, the combination of light adopted in US patent application US2006 / 0279710A1, US2006 / 0164600A1 or US patent approval US6644814B2 will lead to a larger projection device size

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Projecting device with high light-engine efficiency
  • Projecting device with high light-engine efficiency
  • Projecting device with high light-engine efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Various specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Although the present invention is described in conjunction with specific embodiments, it should be understood that the present invention can be implemented in various ways, and is not limited to the specific embodiments disclosed here; the specific embodiments provided by the present invention make the disclosure of the present invention more sufficient and complete, And enable those skilled in the art to fully grasp the scope of the present invention.

[0022] The projection device according to the first embodiment of the present invention is used for projecting image information onto a surface for the public or individuals to view the projected content. The projection device can constitute a separate projector, or it can exist in a modular form to be integrated with Other portable devices, such as mobile phones, are integrated into a por...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a projecting device with high light-engine efficiency for projecting image information onto a surface. The projecting device comprises a light source module, a light source synthesizer, a lighter source homogenizer, an illuminating lens set, a reflecting type image generator and an image projecting mirror set. Through an inverse total reflection type telecentric optical framework, the invention definitely can provide a projecting device or module with smaller size or volume and high optical-mechaical efficiency, provide a miniature projecting device or module for realizing conjugate imaging and also provide a miniature projectin device or module with two paths of LED light sources.

Description

technical field [0001] The invention relates to a projection device, in particular to the optical path (path) design of a micro-projection device with high optical machine efficiency. Background technique [0002] In recent years, the projection device market has expanded from the market of enterprise products to the market of household and even personal portable products. As for the application of portable products, in addition to reducing the size of projection devices, improving optical-mechanical efficiency is also the direction of efforts of various manufacturers. [0003] In order to reduce the size, the micro-projection device mostly adopts the design of a single light path of the LED light source module, but its disadvantage is that the brightness is insufficient. However, if more than two light source modules are used to form a single light path with a dichroic combiner in order to improve the brightness, the size cannot be effectively reduced. For example, the li...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/00G03B21/20
Inventor 林明坤吴宗训
Owner QISDA OPTRONICS (SUZHOU) CO LTD