Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Triangulating laser profilometer as a navigational aid for the blind: optical aspects

Not Accessible

Your library or personal account may give you access

Abstract

We propose a navigational aid approach for the blind that relies on active optical profilometry with real-time electrotactile interfacing on the skin. Here we are concerned with the optical parts of this system. We point out the particular requirements the profilometer must meet to meet the needs of blind people. We show experimentally that an adequate compromise is possible that consists of a compact class I IR laser-diode triangulation profilometer with the following characteristics: 30-cm to 30-m range, 1-deg angular resolution, 20-ms acquisition time per measure of distance, 60° angular scanning field.

© 1996 Optical Society of America

Full Article  |  PDF Article
More Like This
Triangulating laser profilometer as a three-dimensional space perception system for the blind

R. Farcy and R. Damaschini
Appl. Opt. 36(31) 8227-8232 (1997)

Noncontact optical profilometer

R. J. Whitefield
Appl. Opt. 14(10) 2480-2485 (1975)

Design and demonstration of a high-speed, multichannel, optical-sampling oscilloscope

Rick L. Morrison, Steven G. Johnson, Anthony L. Lentine, and Wayne H. Knox
Appl. Opt. 35(8) 1187-1194 (1996)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved