Optical keyboard
Abstract
An optical keyboard includes an optical panel having optical waveguides stacked together. First ends of the waveguides define an inlet face, and opposite ends thereof define a screen. A projector transmits a light beam outbound through the waveguides for display on the screen as a keyboard image. A light sensor is optically aligned with the inlet face for sensing an inbound light beam channeled through the waveguides from the screen upon covering one key of the keyboard image.
- Inventors:
-
- Manorville, NY
- Fiddletown, CA
- San Diego, CA
- Issue Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- OSTI Identifier:
- 873505
- Patent Number(s):
- 6175679
- Assignee:
- Brookhaven Science Associates (Upton, NY)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AC02-98CH10886
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- optical; keyboard; panel; waveguides; stacked; define; inlet; opposite; screen; projector; transmits; light; beam; outbound; display; image; sensor; optically; aligned; sensing; inbound; channeled; covering; key; light sensor; optical waveguides; optical panel; light beam; optical waveguide; optical key; optically aligned; optical wave; optical keyboard; /385/340/
Citation Formats
Veligdan, James T, Feichtner, John D, and Phillips, Thomas E. Optical keyboard. United States: N. p., 2001.
Web.
Veligdan, James T, Feichtner, John D, & Phillips, Thomas E. Optical keyboard. United States.
Veligdan, James T, Feichtner, John D, and Phillips, Thomas E. Mon .
"Optical keyboard". United States. https://www.osti.gov/servlets/purl/873505.
@article{osti_873505,
title = {Optical keyboard},
author = {Veligdan, James T and Feichtner, John D and Phillips, Thomas E},
abstractNote = {An optical keyboard includes an optical panel having optical waveguides stacked together. First ends of the waveguides define an inlet face, and opposite ends thereof define a screen. A projector transmits a light beam outbound through the waveguides for display on the screen as a keyboard image. A light sensor is optically aligned with the inlet face for sensing an inbound light beam channeled through the waveguides from the screen upon covering one key of the keyboard image.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}
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