Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Separating white light into polarized, colored light










Image Number 11 for United States Patent #6490017.

An electro-optic shutter is provided that includes first and second liquid crystal devices located along an optical path and first and second color-selective layers located between the first and second liquid crystal devices. Each liquid crystal device is adapted to rotate the polarization of incident light to a substantially orthogonal polarization in response to being in a first state, and to not substantially change the polarization of incident light in response to being in a second state. The first color-selective layer is adapted to transmit first and second colors and a first polarization of a third color. The second color-selective layer is adapted to transmit the first and the third colors and a second polarization of the second color that is substantially orthogonal to the first polarization. An electro-optic shutter is also provided that includes a color-selective layer, a liquid crystal device to receive light from the color-selective layer and a polarizer to receive light from the liquid crystal layer. The color-selective layer is adapted to transmit a first color, a first polarization of a second color, and a substantially orthogonal polarization of a third color. The liquid crystal device is adapted to rotate the polarization of light to a substantially orthogonal polarization when in a first state and to not substantially rotate the polarization of light when in a second state. The electro-optic shutter can be employed in projection systems.








 
 
  Recently Added Patents
Scalable pixel coverage function-map
Method and apparatus for reducing and controlling highway congestion to save on fuel costs
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Active element machine computation
Optical cable plug-in detection
Communication apparatus, communication method, and communication system
Authentication service
  Randomly Featured Patents
Method for preparing cell cultures from biological specimens for assaying secreted factors
Combined can opener, bottle opener and bag closer
Percent-of-clock delay circuits with enhanced phase jitter immunity
Storage cap with spring biased female threads
Separating spent mineral matter from heat carriers
Gateway apparatus, control instruction processing method, and program
Electronic cuff to monitor blood pressure in polygraph instruments
Method for making a strong, bulky, absorbent paper sheet using restrained can drying
Scanning device by curvilineal motion
Celebration pay