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:
Apr. 16, 2013
Filed:
Jun. 10, 2009
Takahiro Nakayama, Yokohama, JP;
Takahiro Nakayama, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide an illumination device in which a point light source and a reflective member based on a light weight, cheap resin material is used, the illumination device has high precision and is strong to environmental variations when in a state assembled as a unit and is easily moldable as a part, a plurality of point light sources () is arrayed, a first reflective member () is disposed along an outgoing direction of light of the point light sources, a second reflective member () is disposed in a surface opposed to a light emitting surface of the point light source in an orthogonal direction, the point light sources are moved integrally with a part or a whole of the first and the second reflective member, the illumination device irradiates an irradiation surface by light from the point light sources, rib shaped bodies () are disposed in a light passageway side of the first reflective member, the rib shaped bodies includes a reflective surface and is situated at a position of an approximately equal distance from two adjacent point light sources, the rib shaped bodies are disposed to be approximately orthogonal against a straight line connecting the two adjacent point light sources.