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

Multiple path illumination for image display systems

A technology of image display and illumination angle, applied in the field of optical systems, which can solve problems such as light source failure

Inactive Publication Date: 2010-01-13
TEXAS INSTR INC
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the light source may fail when operated at increased temperature and current levels

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
  • Multiple path illumination for image display systems
  • Multiple path illumination for image display systems
  • Multiple path illumination for image display systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 is a block diagram of one embodiment of a portion of a projection display system 10 implementing multiple light sources 12 . In this example, projection display system 10 includes a first light source 12a and a second light source 12b. The first and second light sources 12a and 12b are respectively capable of generating illumination beams 14a and 14b which are directed at the modulator 16 . Modulator 16 may comprise any device capable of selectively transmitting at least some of the received light beams along projection light path 18 . In various embodiments, modulator 16 may comprise a spatial light modulator such as, for example, a liquid crystal display or a light emitting diode modulator.

[0013] In this particular embodiment, modulator 16 comprises a digital micromirror device (DMD). DMDs are microelectromechanical devices that include arrays of hundreds of thousands of tilting micromirrors. In a planar state, each micromirror can be substantially par...

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

In one embodiment, a method for transmitting sources of light in an image display system includes generating a first plurality of light beams at a first light source. The first plurality of light beams are transmitted at a first illumination angle. A second plurality of light beams are generated at a second light source. The second plurality of light beams transmitted at a second illumination angle. The transmission of the first and second pluralities of light beams are oscillated from the first and second light sources such that each of the first and second light sources alternate between an active state and an inactive state.

Description

technical field [0001] The present invention relates generally to image display systems, and more particularly to optical systems implementing micromirror-based projection display systems. Background technique [0002] Spatial light modulators used in projection display systems are capable of projecting image detail from media sources such as HDTV, DVD and DVI. Conventional spatial light modulators are limited by their etendue, which specifies the energy available to the system. In particular, the amount of light in a particular wavelength range acceptable to a spatial light modulator is limited by the etendue of the system. The light from a light source emitting narrowband light is generally not powerful enough for the light modulator to produce an image of the correct color or bright enough. Additionally, light sources may fail when operated at increased temperatures and current levels. Contents of the invention [0003] In one embodiment, a method of delivering a lig...

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): G02B27/10G03B21/26G03B21/00G03B21/28
CPCG09G3/346G09G3/3413G02B26/0841G03B33/12G03B21/2013
Inventor 史蒂文·M·佩恩迈克尔·T·戴维斯
Owner TEXAS INSTR INC