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:
May. 27, 2003
Filed:
May. 21, 2001
Applicant:
Inventors:
Assignee:
ISIS Innovation Limited, Oxford, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/20 ;
U.S. Cl.
CPC ...
G01J 1/20 ;
Abstract
The wavefront sensing device consists of a light source, a binary phase mask ( ), a fixed focus lens ( ) and at least two finite sized spatially separated detectors ( ) positioned in the plane of focus of the wavefront sensing device. The binary phase mask ( ) simultaneously applies a positive bias and a negative bias to the wavefront of the incident light such that a pair of spatially separated light points are generated in the plane of focus and detected by the detectors ( ). The difference in intensity between the pair of light points is representative of the aberration of the wavefront of the incident light from the ideal.