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:
Nov. 02, 2010
Filed:
Mar. 26, 2008
Tetsuya Noda, Tenri, JP;
Tetsuya Noda, Tenri, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
In a joined optical member, let the adhesion strength between a surface coating layer and an eyepiece prism be A, the adhesion strength between the surface coating layer and a deflector prism be A, the adhesion strength between the surface coating layer and adhesive be A, and the adhesion strength between, at one end, the adhesive and, at the other, the eyepiece prism and the deflector prism be A, then A(A)>Aand simultaneously AA. This makes removal of superfluous adhesive on the surface coating layer easy, and prevents scratches on the exterior surfaces. Even after removal of superfluous adhesive, the surface coating layer remains on the exterior surfaces of the eyepiece prism and the deflector prism. This prevents scratches on the exterior surfaces in actual use, and prevents degradation of optical performance.