FR2347032A1 - Obstacle detector unit for use by blind person - analyses light from beam emitted by unit and transforms this into audible signal - Google Patents

Obstacle detector unit for use by blind person - analyses light from beam emitted by unit and transforms this into audible signal

Info

Publication number
FR2347032A1
FR2347032A1 FR7610212A FR7610212A FR2347032A1 FR 2347032 A1 FR2347032 A1 FR 2347032A1 FR 7610212 A FR7610212 A FR 7610212A FR 7610212 A FR7610212 A FR 7610212A FR 2347032 A1 FR2347032 A1 FR 2347032A1
Authority
FR
France
Prior art keywords
unit
audible signal
light
beam emitted
blind person
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7610212A
Other languages
French (fr)
Other versions
FR2347032B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUILLEMAIN JEAN CLAUDE
Original Assignee
GUILLEMAIN JEAN CLAUDE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUILLEMAIN JEAN CLAUDE filed Critical GUILLEMAIN JEAN CLAUDE
Priority to FR7610212A priority Critical patent/FR2347032A1/en
Publication of FR2347032A1 publication Critical patent/FR2347032A1/en
Application granted granted Critical
Publication of FR2347032B1 publication Critical patent/FR2347032B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/006—Teaching or communicating with blind persons using audible presentation of the information

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Burglar Alarm Systems (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

The unit enables a blind person to detect obstacles, analysing light reflected by a beam emitted by the unit. This information is transformed into an audible signal to provide a warning. A battery supplies power to a light emitting system through a switching circuit, the beam being focused through a lens into the required direction. An optical system receives the reflected light signal and focuses it onto photoelectric cells. These provide electrical impulses corresponding to the light image and these are fed into an electronic circuit. This gives a variable frequency audible signal, supplied to the user through an electro-acoustic unit.
FR7610212A 1976-04-08 1976-04-08 Obstacle detector unit for use by blind person - analyses light from beam emitted by unit and transforms this into audible signal Granted FR2347032A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7610212A FR2347032A1 (en) 1976-04-08 1976-04-08 Obstacle detector unit for use by blind person - analyses light from beam emitted by unit and transforms this into audible signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610212A FR2347032A1 (en) 1976-04-08 1976-04-08 Obstacle detector unit for use by blind person - analyses light from beam emitted by unit and transforms this into audible signal

Publications (2)

Publication Number Publication Date
FR2347032A1 true FR2347032A1 (en) 1977-11-04
FR2347032B1 FR2347032B1 (en) 1978-09-01

Family

ID=9171544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610212A Granted FR2347032A1 (en) 1976-04-08 1976-04-08 Obstacle detector unit for use by blind person - analyses light from beam emitted by unit and transforms this into audible signal

Country Status (1)

Country Link
FR (1) FR2347032A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932404C2 (en) * 1979-08-09 1981-09-03 Beck, Edgar, Dipl.-Ing. Guide device for the blind
WO1991004458A1 (en) * 1989-09-15 1991-04-04 The Australian National University Passive-optoelectronic rangefinding
ES2087014A2 (en) * 1993-10-27 1996-07-01 Garcia Ramon Manrique Device for detecting/warning of obstacles
AT14790U1 (en) * 2015-01-30 2016-06-15 Veronika Mayerboeck Setting of light by mobile portable radio-linked light sensor system with integrated sound processing and light control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PROCEEDINGS OF THE SOCIETY OF PHOTOOPTICAL INSTRUMENTATION ENGINEERS, VOLUME 41, 27 - 29 AOUT 1973, PAGES 107 - 109, ARTICLE J. MALVER BENJAMIN E.A.: "AN IMPROVED LASER CANE FOR THE BLIND") *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932404C2 (en) * 1979-08-09 1981-09-03 Beck, Edgar, Dipl.-Ing. Guide device for the blind
WO1991004458A1 (en) * 1989-09-15 1991-04-04 The Australian National University Passive-optoelectronic rangefinding
ES2087014A2 (en) * 1993-10-27 1996-07-01 Garcia Ramon Manrique Device for detecting/warning of obstacles
AT14790U1 (en) * 2015-01-30 2016-06-15 Veronika Mayerboeck Setting of light by mobile portable radio-linked light sensor system with integrated sound processing and light control

Also Published As

Publication number Publication date
FR2347032B1 (en) 1978-09-01

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Legal Events

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