DE69614964D1 - Photosensitive device for controlling the illuminance in a room - Google Patents

Photosensitive device for controlling the illuminance in a room

Info

Publication number
DE69614964D1
DE69614964D1 DE69614964T DE69614964T DE69614964D1 DE 69614964 D1 DE69614964 D1 DE 69614964D1 DE 69614964 T DE69614964 T DE 69614964T DE 69614964 T DE69614964 T DE 69614964T DE 69614964 D1 DE69614964 D1 DE 69614964D1
Authority
DE
Germany
Prior art keywords
illuminance
room
controlling
theta
sensor
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.)
Expired - Lifetime
Application number
DE69614964T
Other languages
German (de)
Inventor
Bernard Grehant
Aurele Millet
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.)
Somfy SA
Original Assignee
Somfy SA
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 Somfy SA filed Critical Somfy SA
Application granted granted Critical
Publication of DE69614964D1 publication Critical patent/DE69614964D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection-Type Copiers In General (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Television Receiver Circuits (AREA)

Abstract

The photosensor device comprises a photosensitive element (6) mounted on a base (7) with its sensitive surface facing upwards. The sensor is covered by a conical screen (8) forming an optical integrator. The optical transmission through the conical screen varies according to the angle at which light enters with respect to the vertical. A transmission mask (9) is applied to the outside surface of the cone, between two angles (theta-1, theta-2). This is intended to attenuate the sensitivity of the sensor when light is incident between two specified angles (aCmin, aCmax).
DE69614964T 1995-10-25 1996-10-14 Photosensitive device for controlling the illuminance in a room Expired - Lifetime DE69614964D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9512581A FR2740573B1 (en) 1995-10-25 1995-10-25 PHOTOSENSITIVE DEVICE FOR INSTALLING CONTROLS FOR THE LIGHT LEVEL OF A ROOM

Publications (1)

Publication Number Publication Date
DE69614964D1 true DE69614964D1 (en) 2001-10-11

Family

ID=9483897

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69614964T Expired - Lifetime DE69614964D1 (en) 1995-10-25 1996-10-14 Photosensitive device for controlling the illuminance in a room

Country Status (6)

Country Link
EP (1) EP0770949B1 (en)
JP (1) JPH09178552A (en)
AT (1) ATE205315T1 (en)
DE (1) DE69614964D1 (en)
ES (1) ES2104540T1 (en)
FR (1) FR2740573B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041396C2 (en) * 1980-11-03 1983-10-27 Karl Albert 7000 Stuttgart Krieger Light sensor device for adapting the lighting of a given area to the brightness of extraneous light
NO158389C (en) * 1985-03-04 1988-08-31 Sintef LIGHT LIGHT CONTROL DEVICE.
DE3526590A1 (en) * 1985-07-25 1986-01-02 Zinnecker, Elisabeth, 7891 Lottstetten Method and arrangement for controlling an illumination system
FR2676842B1 (en) * 1991-05-22 1993-09-17 Somfy INSTALLATION OF AUTOMATIC CONTROL OF THE ILLUMINATION LEVEL OF A PREMISES.
FR2678752B1 (en) * 1991-07-03 1993-10-29 Somfy INSTALLATION FOR CONTROLLING THE ILLUMINATION LEVEL OF A PREMISES.

Also Published As

Publication number Publication date
ATE205315T1 (en) 2001-09-15
ES2104540T1 (en) 1997-10-16
EP0770949B1 (en) 2001-09-05
FR2740573B1 (en) 1997-12-26
FR2740573A1 (en) 1997-04-30
EP0770949A1 (en) 1997-05-02
JPH09178552A (en) 1997-07-11

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Legal Events

Date Code Title Description
8332 No legal effect for de