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:
Feb. 04, 2014

Filed:

Mar. 03, 2010
Applicant:

Kenji Okayasu, Minato-ku, JP;

Inventor:

Kenji Okayasu, Minato-ku, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/182 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a high-performance mirror which is capable of being varied between a plane mirror and a concave mirror. The mirror comprises a base (), a mirror holder (), a mirror surface sheet () and a back sheet () both capable of varying their curvature and retained in a spaced-apart relation by the mirror holder () to define an air-tight space between the sheets, the back sheet () being deformed from its center to reduce the pressure in the space, the mirror surface sheet being deformed into a concave spherical surface by a difference between the reduced pressure and the atmospheric pressure thereby to vary the curvature thereof.


Find Patent Forward Citations

Okayasu, Kenji. (2014). Mirror (U.S. Patent No. 8641213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8641213

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

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