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:
Jan. 27, 2015
Filed:
Feb. 25, 2011
Kentarou Imamura, Osaka, JP;
Shigeto Yoshida, Osaka, JP;
Takafumi Shimatani, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A reflective imaging element includes: a plurality of holes penetrating through the plate-like substrate along a thickness direction thereof; two orthogonally-disposed specular elements on inner walls of the plurality of holes; a first principal face on which light from an object is received; a second principal face parallel to the first principal face; and two taper elements opposing the two specular elements. The two taper elements each have a first side parallel to the first principal face, a second side orthogonal to the first principal face and to the first side, and a hypotenuse meeting the first and second sides and constituting an angle β with the second side. An angle constituted by a normal direction of the first principal face and an incident direction of light striking the first principal face defines an incident angle θ, such that, in a range of 0°<θ<90°, the angle β satisfies (90°−θ)/4≦β.