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:
May. 11, 2004
Filed:
Jul. 25, 2001
Fuminori Nakashima, Mie-pref., JP;
Denso Corporation, Kariya, JP;
Abstract
An image display apparatus comprises a hologram screen formed by bonding a hologram element to light-transmissible films and an illumination device for irradiating image light onto the hologram screen and reproducing an image on the hologram screen . The light-transmissible film positioned on the irradiation side of the image light relative to the hologram element has an angle deviation of not greater than 45 degrees between a direction of the light-transmissible film that gives the highest thermal shrinkage ratio and an axial direction in the hologram screen . Therefore, the image display apparatus can provide high-quality images without the superposition of an interference pattern on the images on the hologram screen.