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.:

US 6873471 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 29, 2005

Filed:

Apr. 16, 2003
Applicants:

Nicholas Richard Coates, Crowborough, GB;

Roger Brian Huxford, Burgess Hill, GB;

Inventors:

Nicholas Richard Coates, Crowborough, GB;

Roger Brian Huxford, Burgess Hill, GB;

Assignee:

SEOS Limited, West Sussex, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B025/04 ; G02B017/08 ;
U.S. Cl.
CPC ...
Abstract

An eyepiece () for viewing a flat image, which eyepiece () has a wide field of view and which eyepiece () comprises a cemented doublet of reflecting and refracting optical components, the reflecting and refracting optical components being such that they are each of a different refractive index whereby chromatic aberrations and spherical aberrations are reduced.


Find Patent Forward Citations

Coates, Nicholas. (2005). Eyepiece for viewing a flat image (U.S. Patent No. 6873471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6873471

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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