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.

Date of Patent:
Jun. 10, 2014

Filed:

Nov. 07, 2012
Applicant:

Omnivision Technologies, Inc., Santa Clara, CA (US);

Inventor:

Ting-Yu Cheng, San Jose, CA (US);

Assignee:

OmniVision Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/02 (2006.01); A61B 1/002 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lens system and a for a capsule endoscope includes a first lens having a concave aspheric surface having a radius R2 and a second lens having a convex aspheric surface having a radius R3 facing the first lens. A third lens has a convex aspheric surface having radius R6. The lens system satisfies the following conditions: (1) R2/Gap>1 and ABS(R3/R2)>1.28; (2) 1<ABS(R6/R2)<1.1 and R6<0; and (3) V2<V1 and V2<V3; wherein: i) Gap is a distance from a center of curvature of the concave aspheric surface of the first lens to a center of curvature of the convex aspheric surface of the second lens; (ii) ABS denotes absolute value; and (iii) V1 is an Abbe number of the first lens, V2 is an Abbe number of the second lens, and V3 is an Abbe number of the third lens.


Find Patent Forward Citations

Cheng, Ting-Yu. (2014). Large-field-of-view lens system for capsule endoscope and capsule endoscope having large-field-of-view lens system (U.S. Patent No. 8749897). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8749897

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

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