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. 28, 2014
Filed:
Jun. 03, 2011
Go Takahashi, Kanagawa, JP;
Eiichi Hayashi, Kanagawa, JP;
Akio Hirano, Kanagawa, JP;
Takamichi Ohta, Kanagawa, JP;
Kan Aoki, Kanagawa, JP;
Go Takahashi, Kanagawa, JP;
Eiichi Hayashi, Kanagawa, JP;
Akio Hirano, Kanagawa, JP;
Takamichi Ohta, Kanagawa, JP;
Kan Aoki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A plastic optical element for focusing light to a target includes a first lens and a second lens. The first lens includes an incident surface, a projection surface opposite the incident surface, and a non-optical surface through which light does not pass and that includes a non-transfer portion. At least one light beam passes from the incident surface to the projection surface. The second lens includes an incident surface, a projection surface opposite the incident surface, and a non-optical surface through which light does not pass and that includes a non-transfer portion disposed opposite the non-optical surface of the first lens. At least one light beam passes from the incident surface to the projection surface. The non-transfer portions of the first lens and the second lens are portions on which no surface is transferred from a surface of a mold used to form the plastic optical element.