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. 05, 2002
Filed:
Jun. 16, 2000
Applicant:
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 ;
U.S. Cl.
CPC ...
F21V 7/04 ;
Abstract
The coordinates inputting apparatus comprises two light sources provided on different positions on the touch panel, reflection members which recursively reflect the light, and light-receiving sections which receive the light and detect whether the light was cut at certain position on the touch panel. The light sources output the light at certain angle with the touch panel surface (that is, the light is not parallel to the touch panel). The light output from the light source is reflected by the touch panel, then recursively reflected by the reflection members, once more reflected by the touch panel and finally enters into light-receiving sections.