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. 02, 1999
Filed:
Nov. 06, 1997
Hitoshi Hasegawa, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A data imprinting apparatus for a camera prevents image dropout and loss of image sharpness in the imprinted image even when the path length from the light source to the data imprinting LCD is shortened, or when the diffusion angle of the emitted light is increased. In a camera data imprinting apparatus 1 the relationship between the position of a segment 630 on the liquid crystal panel 604 and the position of a light transmitting segment 660 on the light mask 622 is determined with consideration given to the diffusion angle of the emitted light so that the corresponding light transmitting segment 660 of the light mask 622 is positioned within the illumination area 640 formed on the light mask 622 by light passing a segment 630 switched to the light transmitting state. The illumination area 640 is thus formed at a position which is not partially offset from the light transmitting segment 660 of the light mask. Partial dropout of the imprinted data image, or partial loss of sharpness, can thus be avoided.