FR2379825A1 - Appareil photo-electronique a transducteur d'utilisation et transducteur auxiliaire, notamment pour barrieres de securite - Google Patents
Appareil photo-electronique a transducteur d'utilisation et transducteur auxiliaire, notamment pour barrieres de securiteInfo
- Publication number
- FR2379825A1 FR2379825A1 FR7802857A FR7802857A FR2379825A1 FR 2379825 A1 FR2379825 A1 FR 2379825A1 FR 7802857 A FR7802857 A FR 7802857A FR 7802857 A FR7802857 A FR 7802857A FR 2379825 A1 FR2379825 A1 FR 2379825A1
- Authority
- FR
- France
- Prior art keywords
- transducer
- photo
- auxiliary
- electronic device
- safety barriers
- 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
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
Abstract
Appareil photo-électronique avec transducteur d'utilisation photo-électrique raccordé à un dispositif d'exploitation fournissant un signal de sortie dépendant de l'intensité lumineuse atteignant ce transducteur. Tout prés du transducteur d'utilisation 11 est disposé un transducteur auxiliaire photo-électrique 12 relié en opposition avec le transducteur 11 de façon que, si, ce transducteur 12 reçoit des rayons lumineux, il provoque un affaiblissement du signal transmis au dispositif d'exploitation 13 dépendant de l'intensité de ces rayons lumineux. En cas de rayons lumineux perturbateurs, le dispositif fonctionne donc dans le sens de la plus grande sécurité. Applicable notamment aux barrières de sécurité photo-électriques.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772704565 DE2704565A1 (de) | 1977-02-03 | 1977-02-03 | Photoelektronisches geraet |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2379825A1 true FR2379825A1 (fr) | 1978-09-01 |
FR2379825B1 FR2379825B1 (fr) | 1983-05-27 |
Family
ID=6000301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7802857A Granted FR2379825A1 (fr) | 1977-02-03 | 1978-02-02 | Appareil photo-electronique a transducteur d'utilisation et transducteur auxiliaire, notamment pour barrieres de securite |
Country Status (8)
Country | Link |
---|---|
US (1) | US4388528A (fr) |
JP (1) | JPS5397479A (fr) |
CA (1) | CA1134474A (fr) |
CH (1) | CH624482A5 (fr) |
DE (1) | DE2704565A1 (fr) |
FR (1) | FR2379825A1 (fr) |
IT (1) | IT1092377B (fr) |
SE (1) | SE7801247L (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4734576A (en) * | 1986-05-01 | 1988-03-29 | Tektronix, Inc. | Electro-optic sampler |
US4939358A (en) * | 1986-10-08 | 1990-07-03 | Jeffries, Inc. | Switch apparatus including a pair of beam-type switches |
USRE37777E1 (en) * | 1986-10-08 | 2002-07-02 | Jeffrey G. Herman | Switch apparatus requiring the hand of the operator to activate the switch by breaking a light beam |
US4859054A (en) * | 1987-07-10 | 1989-08-22 | The United States Of America As Represented By The United States Department Of Energy | Proximity fuze |
DE3808260C1 (en) * | 1988-03-12 | 1989-03-16 | Fred 6991 Igersheim De Henneberg | Screen device |
US5117118A (en) * | 1988-10-19 | 1992-05-26 | Astex Co., Ltd. | Photoelectric switch using an integrated circuit with reduced interconnections |
US5077467A (en) * | 1990-09-12 | 1991-12-31 | Triad Controls, Inc. | Photoelectric switch and relay system with disabling fail-safe monitoring circuitry |
US5367158A (en) * | 1991-10-25 | 1994-11-22 | Break-A-Beam, Inc. | Photoelectric switch for use with a machine control circuit |
DE4214920A1 (de) * | 1992-05-11 | 1993-11-18 | Thomson Brandt Gmbh | Verfahren und Vorrichtung zur Sensorsignal-Aufbereitung |
DE4219270A1 (de) * | 1992-06-14 | 1993-12-16 | Gerhard Woerner | Vorrichtung zum Umschalten eines Mehrwegeventils |
EP3261131B1 (fr) | 2016-06-21 | 2022-06-22 | Nokia Technologies Oy | Appareil de détection de rayonnement électromagnétique |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE899868C (de) * | 1943-05-20 | 1953-12-17 | Tobis Tonbild Syndikat G M B H | Photometer |
US3521962A (en) * | 1964-06-19 | 1970-07-28 | Stanley Electric Co Ltd | Light responsive and measuring device |
FR1600914A (fr) * | 1968-11-18 | 1970-08-03 | ||
FR2106761A5 (fr) * | 1970-09-23 | 1972-05-05 | Cilas | |
DE2344306A1 (de) * | 1972-09-04 | 1974-03-21 | Nippon Kogaku Kk | Automatischer photometer |
US3924256A (en) * | 1974-01-08 | 1975-12-02 | Morton H Cohen | Burglar alarm switch |
US4054795A (en) * | 1975-12-16 | 1977-10-18 | Bell Telephone Laboratories, Incorporated | Photoelectric sensing system with light source compensating means |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS404557Y1 (fr) * | 1959-11-02 | 1965-02-09 | ||
US3311748A (en) * | 1963-12-20 | 1967-03-28 | Frank A Volpe | Sun tracker with rotatable planeparallel plate and two photocells |
US3500049A (en) * | 1967-04-17 | 1970-03-10 | Bendix Corp | Variable albedo earth sensor of a relatively narrow angular effective field of view |
US3486031A (en) * | 1967-06-05 | 1969-12-23 | Bell Telephone Labor Inc | Memory cell utilizing optical read-in |
US3475613A (en) * | 1967-10-09 | 1969-10-28 | Trw Inc | Three-photocell network for detecting small-area radiation source in presence of large area background noise radiation |
US3845319A (en) * | 1971-10-22 | 1974-10-29 | Sick Erwin | Method and apparatus for the accurate detection of the passage of the edge of a straight contrast jump |
-
1977
- 1977-02-03 DE DE19772704565 patent/DE2704565A1/de active Granted
-
1978
- 1978-01-13 CA CA000294898A patent/CA1134474A/fr not_active Expired
- 1978-01-25 CH CH77478A patent/CH624482A5/de not_active IP Right Cessation
- 1978-01-26 IT IT19665/78A patent/IT1092377B/it active
- 1978-02-01 JP JP939278A patent/JPS5397479A/ja active Pending
- 1978-02-02 FR FR7802857A patent/FR2379825A1/fr active Granted
- 1978-02-02 SE SE7801247A patent/SE7801247L/xx unknown
-
1980
- 1980-10-30 US US06/202,280 patent/US4388528A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE899868C (de) * | 1943-05-20 | 1953-12-17 | Tobis Tonbild Syndikat G M B H | Photometer |
US3521962A (en) * | 1964-06-19 | 1970-07-28 | Stanley Electric Co Ltd | Light responsive and measuring device |
FR1600914A (fr) * | 1968-11-18 | 1970-08-03 | ||
FR2106761A5 (fr) * | 1970-09-23 | 1972-05-05 | Cilas | |
DE2344306A1 (de) * | 1972-09-04 | 1974-03-21 | Nippon Kogaku Kk | Automatischer photometer |
US3924256A (en) * | 1974-01-08 | 1975-12-02 | Morton H Cohen | Burglar alarm switch |
US4054795A (en) * | 1975-12-16 | 1977-10-18 | Bell Telephone Laboratories, Incorporated | Photoelectric sensing system with light source compensating means |
Also Published As
Publication number | Publication date |
---|---|
DE2704565A1 (de) | 1978-08-10 |
DE2704565B2 (fr) | 1979-02-22 |
IT7819665A0 (it) | 1978-01-26 |
CA1134474A (fr) | 1982-10-26 |
IT1092377B (it) | 1985-07-12 |
US4388528A (en) | 1983-06-14 |
SE7801247L (sv) | 1978-08-04 |
CH624482A5 (fr) | 1981-07-31 |
DE2704565C3 (fr) | 1979-10-18 |
JPS5397479A (en) | 1978-08-25 |
FR2379825B1 (fr) | 1983-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2379825A1 (fr) | Appareil photo-electronique a transducteur d'utilisation et transducteur auxiliaire, notamment pour barrieres de securite | |
FR2453455A1 (fr) | Systemes d'alarme de securite | |
FR2406351A1 (fr) | Relais optique | |
KR900008567A (ko) | 광 스위치 장치 | |
NO156514C (no) | Festeanordning til aa anbringes paa huden rundt en utlagt aapning (stoma). | |
DE68909274D1 (de) | Handgerät mit Ein-Ausgabe-Bildteil. | |
BE905450A (fr) | Dispositif de mesure de pression. | |
ES2111552T3 (es) | Sistema de transmision optica. | |
ATE192895T1 (de) | Hörgerät | |
BE903181A (fr) | Detecteur d'intensite residuelle | |
FR2637369A1 (fr) | Appareil de mesure de temperature de couleur | |
KR830009501A (ko) | 초점조절장치(焦點調節裝置) | |
OA03397A (fr) | Dispositif de sécurité pour la commande de la marche arrière d'appareils de traction et de levage agissant par des pinces sur un câble. | |
FR2356146A1 (fr) | Circuit d'annulation automatique pour compenser des courants d'obscurite ou analogues | |
FR2374677A1 (fr) | Dispositif de commande du deroulement chronologique des fonctions d'un appareil | |
FR2361856A1 (fr) | Dispositif d'eclairage pour l'ophtalmoscopie indirecte | |
SE8301581L (sv) | Doseringsanordning | |
JPS5539019A (en) | Torque converter | |
BE898953A (fr) | Circuits de controle utilisant un amplificateur operationnel | |
JPS54151059A (en) | Measuring pulse transmitter | |
SU763940A1 (ru) | Устройство дл передачи телесигналов | |
KR880008007A (ko) | 액정의 광투과율 측정장치 | |
JPS52150992A (en) | Photo coupling device | |
FR1487780A (fr) | Dispositif de mesure du couple à la sortie d'une transmission de puissance | |
JPS5587923A (en) | Optical detector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |