The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2002
Filed:
Mar. 19, 2001
Yong-Sheng Chao, Storrs, CT (US);
Advanced Optical Technologies, Inc., E. Hartford, CT (US);
Abstract
A light beam deflector comprises an initial beam deflector that imparts a small initial deflection, and a beam deflection amplifier that increases the initial small deflection by a multiplication factor. The first of two initial beam deflector embodiments employs highly-electro-optic-sensitive materials and provides methods for reducing and eliminating their photorefractive effects, including the use of a suppressing light source, external electric fields, and temperature control. The second embodiment employs a multi-layer, iterative prism structure, increasing the aperture without increasing the supply voltage. The first of five embodiments of the beam deflection amplifier is a Keplerian telescope lens first stage and a negative lens system second stage. The second is a Galilean telescope lens first stage and a negative lens system second stage. The third is either a Keplerian or Galilean telescope lens alone. The fourth replaces the single second lens of the first stage with a compound lens system. The fifth uses a special sphere lens alone.