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 signalInfo
- 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
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.
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)
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 |
-
1976
- 1976-04-08 FR FR7610212A patent/FR2347032A1/en active Granted
Non-Patent Citations (1)
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)
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
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |