Patent · US Expired

Optimal elements (such as vari focal lens component, vari-focal diffractive optical element and variable declination prism) and electronic image pickup unit using optical elements

US7009757B2 · kind B2 · utility

155Cited by

7References

63Claims

0Family size

Assignee

OLYMPUS CORPORATION · JP

Inventors

Kimihiko Nishioka · Tokyo, JP
Koji Ishizaki · Ebeye, US
Masahiro Kaburaki · Iruma, JP

Key dates

Filing date	Jun 27, 2003
Grant date	Mar 7, 2006
Priority date	—
Expiry date	Jun 27, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/294
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Optical elements such as a vari-focal lens element, a vari-focal diffractive optical element and a variable declination prism usable as spectacle lens elements and so on.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.