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:
Mar. 25, 2003
Filed:
Apr. 12, 2000
Joji Karasawa, Suwa, JP;
Shoichi Ishizawa, Suwa, JP;
Shoichi Uchiyama, Suwa, JP;
Yoko Miyazawa, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In a head-mounted image display apparatus ( ) for viewing images on a liquid crystal display means virtually enlarged by an enlarging lens while worn on the head, main apparatus ( ) comprises a front case ( ), which is positioned at the frontal region side when said main apparatus is worn on the head, and a back case ( ), which is positioned at the occipital region. In addition, an air bag ( ), which inflates to cause the frontal region to contact a buffer pad affixed to the inside surface of the front case ( ), is provided on the inside of the back case ( ). The back case ( ) is able to rotate on connecting member to the front case ( ). Adjustment mechanisms for moving the optical system in the pupil distance direction and in the direction of the optical axes is disposed inside main apparatus ( ), and the knobs therefor are centrally disposed on the front of main apparatus ( ).