GB1068252A - Improvements in and relating to lighting control apparatus - Google Patents
Improvements in and relating to lighting control apparatusInfo
- Publication number
- GB1068252A GB1068252A GB1297063A GB1297063A GB1068252A GB 1068252 A GB1068252 A GB 1068252A GB 1297063 A GB1297063 A GB 1297063A GB 1297063 A GB1297063 A GB 1297063A GB 1068252 A GB1068252 A GB 1068252A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- amplifier
- vehicle
- photo
- relating
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/052—Switching delay, i.e. the beam is not switched or changed instantaneously upon occurrence of a condition change
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
1, 068, 252. Photo-electric control of vehicle lighting. J. HAYES and D. J. D. BROWN. March 25, 1964 [April 2, 1963; Sept. 20, 1963 ], Nos. 12970/63 and 37061/63. Heading G1A. In an arrangement for dipping the headlamps of a vehicle on the approach of another vehicle, a photo-resistance 1 mounted in a forward-looking position controls through a two-stage transistor amplifier 4, 5 a relay 10 operating change-over contacts 12, the amplifier being such that the light-level required to hold the relay is considerably less than that required to operate it initially. The resistor 15 produces a degree of negative feedback and tends to stabilize the amplifier besides reducing the effects of temperature. The potentiometer 6 provides a sensitivity control. The normal dip switch 13 is effective when the relay 10 is inoperative.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1297063A GB1068252A (en) | 1963-04-02 | 1963-04-02 | Improvements in and relating to lighting control apparatus |
BE646054A BE646054A (en) | 1963-04-02 | 1964-04-02 | |
NL6403493A NL6403493A (en) | 1963-04-02 | 1964-04-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1297063A GB1068252A (en) | 1963-04-02 | 1963-04-02 | Improvements in and relating to lighting control apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1068252A true GB1068252A (en) | 1967-05-10 |
Family
ID=10014446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297063A Expired GB1068252A (en) | 1963-04-02 | 1963-04-02 | Improvements in and relating to lighting control apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1068252A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2242018A (en) * | 1990-03-13 | 1991-09-18 | Chen Min Shiung | Automatic brightness control device for motor vehicle headlamps |
EP0533508A2 (en) * | 1991-09-19 | 1993-03-24 | Dani Ben-Lulu | Apparatus and system for controlling vehicle's headlights |
FR2696389A1 (en) * | 1992-10-07 | 1994-04-08 | Sailly Bertrand | Automobile vehicle headlight safety control system - uses photo detector to sense oncoming lights and switch from full beam to dipped beam lights by two transistors and relays |
ES2121544A1 (en) * | 1996-10-08 | 1998-11-16 | Olmedilla Juan Manuel Sanz | Anti-dazzle device for fitting to motor vehicles |
-
1963
- 1963-04-02 GB GB1297063A patent/GB1068252A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2242018A (en) * | 1990-03-13 | 1991-09-18 | Chen Min Shiung | Automatic brightness control device for motor vehicle headlamps |
EP0533508A2 (en) * | 1991-09-19 | 1993-03-24 | Dani Ben-Lulu | Apparatus and system for controlling vehicle's headlights |
EP0533508A3 (en) * | 1991-09-19 | 1993-07-28 | Dani Ben-Lulu | Apparatus and system for controlling vehicle's headlights |
FR2696389A1 (en) * | 1992-10-07 | 1994-04-08 | Sailly Bertrand | Automobile vehicle headlight safety control system - uses photo detector to sense oncoming lights and switch from full beam to dipped beam lights by two transistors and relays |
ES2121544A1 (en) * | 1996-10-08 | 1998-11-16 | Olmedilla Juan Manuel Sanz | Anti-dazzle device for fitting to motor vehicles |
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