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:
Aug. 20, 2002
Filed:
Jul. 28, 2000
Toshinori Sugiyama, Tsukuba, JP;
Masanori Kadotani, Kudamatsu, JP;
Other;
Abstract
In a light transmission system for transmitting a light beam with a variation of wavelength from a light source to a light receiver, comprising, an optical element for receiving the light beam and projecting the light beam, and a compensation optical element for receiving the light beam and projecting the light beam, the optical element and the compensation optical element are arranged optically in series between the light source and the light receiver, a deflection angle of the optical element changes in a first direction according to an increase of wavelength of the light beam, a compensating deflection angle of the compensation optical element changes in a second direction according to the increase of wavelength of the light beam, and the change of the deflection angle in the first direction is compensated by the change of the compensating deflection angle in the second direction so that a position on the light receiver at which position the light beam impinges is restrained from changing according to the increase of wavelength of the light beam.