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Title: 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:
 [1];  [2];  [3]
  1. (Manorville, NY)
  2. (Fiddletown, CA)
  3. (San Diego, CA)
Issue Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY
OSTI Identifier:
873505
Patent Number(s):
6175679
Assignee:
Brookhaven Science Associates (Upton, NY) BNL
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 = {2001},
month = {1}
}

Patent:

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