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. 03, 2021
Filed:
Jul. 15, 2019
Jvckenwood Corporation, Yokohama, JP;
Yasuki Arihara, Yokohama, JP;
Takatsugu Aizaki, Yokohama, JP;
JVCKENWOOD CORPORATION, Yokohama, JP;
Abstract
A step difference exists at a boundary between lens cells in a first direction of a fly-eye lens, whereas a step difference does not exist at a boundary between lens cells in a second direction. Central light transmitted though a central portion of the lens cell in the first direction is incident on a polarized light separation surface of a polarized light conversion element, and the polarized light separation surface reflects a first polarized light included in the central light and transmits a second polarized light. A reflection surface reflects the reflected first polarized light and causes the polarized light conversion element to emit the reflected first polarized light, and a ½ wavelength plate converts the second polarized light transmitted through the polarized light separation surface into the first polarized light and causes the polarized light conversion element to emit the converted first polarized light.