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:
Oct. 03, 2006
Filed:
May. 02, 2005
Hiroyuki Minakata, Hachioji, JP;
Hiroyuki Minakata, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
The invention relates to a compact, slimmed-down, low-cost optical system and electronic equipment that incorporates the same. The optical system at least comprises a stopat least one object-side reflecting surfacelocated on the object side with respect to the stopand inclined from the optical axis of the optical system, at least one image-side reflecting surfacelocated on the image side of the optical system with respect to the stopand inclined from the optical axis, and an image pickup deviceRegarding all reflecting surfaces inclined from the optical axis in the optical system, the reference plane for each reflecting surface is given by a plane defined by an entrance-side axial chief ray and a reflection-side axial chief ray regarding each reflecting surface. In the invention, the reference plane for at least one object-side reflecting surfaceand the reference plane for at least one image-side reflecting surfacecross at any angle, and at least one object-side reflecting surfaceand at least one image-side reflecting surfacehave a rotationally asymmetric aspheric shape.