Three dimensional image projector with dual light modulators

Patent metadata

Field	Value
Publication number	US-8944604-B2
Application number	US-201213672980-A
Country	US
Kind code	B2
Filing date	Nov 9, 2012
Priority date	Jan 25, 2012
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A method is provided for projecting a three-dimensional image. The system includes a first light source, the first light source emitting light in a first direction and a second light source emitting light in a second direction. A beam splitter device is disposed adjacent each light source and an imaging device is disposed adjacent the beam splitter device. Light from the first light source and the second light source travel a common optical path to a projector lens assembly.

First claim

What is claimed is:

1. A method comprising:
providing a first light source and a second light source;
providing a first polarizing beam device (PBS) adjacent the first light source and a second PBS adjacent the second light source;
providing a first fly's eye lens between the first light source and the first PBS;
providing a first pre-polarizer lens between the first fly's eye lens and the first PBS:
providing a second fly's eye lens between the second light source and the…

Assignees

• IBM

Inventors

• Decusatis Casimer M

Classifications

• G03B35/26 Primary

  Physics · mapped topic

• G03B21/14

  Physics · mapped topic

• F21V9/14

  Mechanical Engineering · mapped topic

• G02B27/18 Primary

  Physics · mapped topic

• G02B30/25

  Physics · mapped topic