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:
Jul. 06, 2010
Filed:
May. 16, 2007
Yukio Taniguchi, Yokohama, JP;
Masakiyo Matsumura, Yokohama, JP;
Yukio Taniguchi, Yokohama, JP;
Masakiyo Matsumura, Yokohama, JP;
Advanced LCD Technologies Development Center Co., Ltd., Yokohama, JP;
Abstract
A light application apparatus includes an optical modulation element provided with a plurality of phase steps, a light beam which is entered into the optical modulation element being phase-modulated by the phase steps and exits from the optical modulation element as a light beam having a first light intensity distribution. An optical system is arranged between the optical modulation element and an predetermined plane. The optical system divides the phase-modulated light beam into at least two light fluxes having second and third light intensity distributions and different optical characteristics from each other, and projects a light beam including the divided two light fluxes, the light intensity distributions of the projected light fluxes being combined with each other, so that the projected light beam has a fourth light intensity distribution with an inverse peak shape on the predetermined plane and enters the predetermined plane. The first to fourth light intensity distributions are different from each other on the predetermined plane.