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

Assymetric spot area spoke reduction

An asymmetric, area-based technology, applied to instruments, optical elements for changing the spectral characteristics of emitted light, lighting and heating equipment, etc., can solve problems such as reducing brightness

Pending Publication Date: 2019-05-28
TEXAS INSTR INC
View PDF19 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the projector is shuttered during the spoke time (e.g. to not project "mixed" spoke colors), it reduces brightness or requires complex and expensive electronics solutions to rapidly pulse the light source

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
  • Assymetric spot area spoke reduction
  • Assymetric spot area spoke reduction
  • Assymetric spot area spoke reduction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] In this specification: (a) the term "part" may mean the whole part or a part less than the whole part; (b) the term "encapsulation" may mean a substrate or a sealed container, which may include a partial die, wafer, or micromechanical device in the environment; (c) the term "tapered" may mean a volume of space illuminated by projecting a shape in cross-section, where the projected shape is not necessarily a perfect circle (e.g., not necessarily is the base of a perfect cone); and (d) the term "optics" may mean any component or collection of components for at least one of generating, propagating, reflecting, refracting, masking, filtering, modulating and projecting light.

[0012] In some projectors, light from a light source is reflected and focused into illuminated areas (spots). The spot appears to be perfectly circular (eg, with a constant radius) when viewed along the axis of travel of the focused light. The focal point of the illuminated spot is brought into focus...

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

Assymetric spot area spoke reduction is disclosed. In described examples, one or more devices include: a light source to generate a beam of light; and an optical device to generate a spot of light (310) in response to the beam of light. A color wheel (300) revolves in a direction of rotation about an axis (340), so the spot of light (310) illuminates an area (such as a part of 320) of the color wheel (310). The spot of light has: a first width; and a second width wider than the first width and orthogonal to the first width. The first width is aligned tangential to the direction of rotation.

Description

Background technique [0001] In some electronic image projectors, the light for projection by the image projector originates from the emission of light from a lamp or laser. The emitted light is usually reflected and focused on the projector's light tunnel (or light rod) before being modulated and projected. The emitted light can have a correlated color temperature close to white, so that light with different wavelengths can be obtained therefrom for projecting an optical image in color. The primary colors red, blue and green are usually chosen as the different wavelengths. Primary colors are obtained by shining light from a lamp through a rotating color wheel. The color wheel is usually between the source of the focused light and the entrance of the light tunnel. The color wheel is arranged to rotate such that different colors of light (different primary colors) are filtered through the color wheel at different times. However, mixed colors are obtained when unfiltered ligh...

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 Applications(China)
IPC IPC(8): G03B21/20G02B26/04
CPCG03B21/208G03B21/204G03B21/2066G03B21/008F21V11/08F21V9/04F21V9/06F21V14/08F21V9/30
Inventor V·R·巴克达S·P·克里乔
Owner TEXAS INSTR INC