GB2107859A - Night light activator - Google Patents

Night light activator Download PDF

Info

Publication number
GB2107859A
GB2107859A GB08131082A GB8131082A GB2107859A GB 2107859 A GB2107859 A GB 2107859A GB 08131082 A GB08131082 A GB 08131082A GB 8131082 A GB8131082 A GB 8131082A GB 2107859 A GB2107859 A GB 2107859A
Authority
GB
United Kingdom
Prior art keywords
cells
light
circuit
logic
timer
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
GB08131082A
Other versions
GB2107859B (en
Inventor
John Martin Warrington
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08131082A priority Critical patent/GB2107859B/en
Publication of GB2107859A publication Critical patent/GB2107859A/en
Application granted granted Critical
Publication of GB2107859B publication Critical patent/GB2107859B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A light sensitive switch uses a pair of light cells in order to prevent daylight operating the circuit, and make it less sensitive to ambient light. When one light cell conducts sufficiently to register a logic one at the input to its associated gate G1 or G2, then a logic one is passed to G3. If only one light cell operates in this way then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off. Should both light cells go positive the G3 will not pass a logic one to the timer. In this way, daylight falling on both cells will not activate the circuit. The separation of the circuit box from the cells and shading tube allows the cells and shading tube to be fitted to such projections as mirrors and to other specially made projections. The device can also be used on vessels and stationary aircraft, or in domestic situations for the illumination of dark entrances to facilitate parking of owner's vehicles. <IMAGE>

Description

SPECIFICATION Improved night light activator The use of a pair of light cells in order to allow the circuit to recognise daylight conditions and to switch itself off accordingly, to prevent daylight operating the circuit, and to make it less sensitive to ambient light. A single chip using 4 exclusive or gates is controlled by the light cells. The output from this is fed to a timer circuit. The timer output drives a switching device, either a relay or a transistor, according to application. When one light cell becomes sufficiently positive to register a logic one at the input to it's associated gate, then a logic one is passed on to G3. If only one light cell operates in this way, then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off.Should both light cells go positive, then G3 will not pass on a logic one to the timer.
In this way, daylight falling on both cells will not activate the circuit.
The separation of the circuit box from the cells and shading tube to render the system immune from ambient light, and bad weather. The cells and tube to be fitted to such projections as mirrors and other specially made projections. The use of this device on vessels and stationary aircraft and also in domestic situations such as, for the illumination of dark entrances, to facilitate parking of owners vehicles etc.
Fig. A. The tube to protect the photo cells from the weather and to render the system immune from ambient light.
Fig. B. The photo cells.
Fig. C. The circuit panel.
Fig D. The window ciip.
Fig. E. The socket and plug.
Claims
1. The use of a pair of light cells in order to allow the circuit to recognise daylight conditions and to switch itself off accordingly, to prevent daylight operating the circuit, and make it less sensitive to ambient light. When one light cell becomes sufficiently positive to register a logic one, the input to it's associated gate, then a logic one is passed on to G3. If only one light cell operates in this way, then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off.
Should both light cells go positive, then G3 will not pass on a logic one to the time. In this way, daylight falling on both cells will not activate the circuit.
2. The separation of the circuit box from the cells and shading tube, allowing the cells and shading tube to be fitted to such projections as mirrors and to other specially made projections.
3. The use of this device on vessels and stationary aircraft.
4. The use of this device in domestic situations for the illumination of dark entrances to facilitate parking of owners vehicles etc.
5. The use of a tube to protect the photo cell from weather and to render the system immune from ambient light.
6. A design of a night light Activator unit which consist of an all electronic circuit with micro-chip technology to avoid the need for electro mechanical relays. In a sealed case the circuit goes.
New Claims or Amendments to Claims filed on 28 January, 1983 Superseded Claims 1 and 6 New or Amended Claims 1. The use of a pair of light cells in order to allow the circuit to recognise either: a) Daylight Conditions, or; b) Oncoming lights from either front or rear of the device. Therefore turning the system off during daylight hours or turning the lights on with approaching lights and also to render the system less sensitive to ambient light. When either light cell becomes sufficiently positive to register a logic one at the input to its associated gate, then a logic one is passed on to G3. If only one light cell operates in this way then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off. Should both light cells go positive, then G3 will not pass on a logic one to the timer. In this way, daylight falling on both cells will not activate the circuit.
6. A design of a night light activator unit which consists of an electronic circuit with micro-chip technology to avoid the need for electro mechanical relays. The circuit goes in a sealed case.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improved night light activator The use of a pair of light cells in order to allow the circuit to recognise daylight conditions and to switch itself off accordingly, to prevent daylight operating the circuit, and to make it less sensitive to ambient light. A single chip using 4 exclusive or gates is controlled by the light cells. The output from this is fed to a timer circuit. The timer output drives a switching device, either a relay or a transistor, according to application. When one light cell becomes sufficiently positive to register a logic one at the input to it's associated gate, then a logic one is passed on to G3. If only one light cell operates in this way, then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off.Should both light cells go positive, then G3 will not pass on a logic one to the timer. In this way, daylight falling on both cells will not activate the circuit. The separation of the circuit box from the cells and shading tube to render the system immune from ambient light, and bad weather. The cells and tube to be fitted to such projections as mirrors and other specially made projections. The use of this device on vessels and stationary aircraft and also in domestic situations such as, for the illumination of dark entrances, to facilitate parking of owners vehicles etc. Fig. A. The tube to protect the photo cells from the weather and to render the system immune from ambient light. Fig. B. The photo cells. Fig. C. The circuit panel. Fig D. The window ciip. Fig. E. The socket and plug. Claims
1. The use of a pair of light cells in order to allow the circuit to recognise daylight conditions and to switch itself off accordingly, to prevent daylight operating the circuit, and make it less sensitive to ambient light. When one light cell becomes sufficiently positive to register a logic one, the input to it's associated gate, then a logic one is passed on to G3. If only one light cell operates in this way, then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off.
Should both light cells go positive, then G3 will not pass on a logic one to the time. In this way, daylight falling on both cells will not activate the circuit.
2. The separation of the circuit box from the cells and shading tube, allowing the cells and shading tube to be fitted to such projections as mirrors and to other specially made projections.
3. The use of this device on vessels and stationary aircraft.
4. The use of this device in domestic situations for the illumination of dark entrances to facilitate parking of owners vehicles etc.
5. The use of a tube to protect the photo cell from weather and to render the system immune from ambient light.
6. A design of a night light activator unit which consists of an electronic circuit with micro-chip technology to avoid the need for electro mechanical relays. The circuit goes in a sealed case.
6. A design of a night light Activator unit which consist of an all electronic circuit with micro-chip technology to avoid the need for electro mechanical relays. In a sealed case the circuit goes.
New Claims or Amendments to Claims filed on 28 January, 1983 Superseded Claims 1 and 6 New or Amended Claims
1. The use of a pair of light cells in order to allow the circuit to recognise either: a) Daylight Conditions, or; b) Oncoming lights from either front or rear of the device. Therefore turning the system off during daylight hours or turning the lights on with approaching lights and also to render the system less sensitive to ambient light. When either light cell becomes sufficiently positive to register a logic one at the input to its associated gate, then a logic one is passed on to G3. If only one light cell operates in this way then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off. Should both light cells go positive, then G3 will not pass on a logic one to the timer. In this way, daylight falling on both cells will not activate the circuit.
GB08131082A 1981-10-15 1981-10-15 Night light activator Expired GB2107859B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08131082A GB2107859B (en) 1981-10-15 1981-10-15 Night light activator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08131082A GB2107859B (en) 1981-10-15 1981-10-15 Night light activator

Publications (2)

Publication Number Publication Date
GB2107859A true GB2107859A (en) 1983-05-05
GB2107859B GB2107859B (en) 1985-01-30

Family

ID=10525167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08131082A Expired GB2107859B (en) 1981-10-15 1981-10-15 Night light activator

Country Status (1)

Country Link
GB (1) GB2107859B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155620A (en) * 1984-03-06 1985-09-25 Holophane Europ Limited Photocell and method for calibration thereof
GB2198229A (en) * 1986-12-05 1988-06-08 Smiths Industries Plc Opto-electric device for switching on power-consuming equipment
FR2746248A1 (en) * 1996-03-15 1997-09-19 Ivsic Frederic Automatic illumination device for interior of cavity or container, e.g. handbag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155620A (en) * 1984-03-06 1985-09-25 Holophane Europ Limited Photocell and method for calibration thereof
GB2198229A (en) * 1986-12-05 1988-06-08 Smiths Industries Plc Opto-electric device for switching on power-consuming equipment
FR2746248A1 (en) * 1996-03-15 1997-09-19 Ivsic Frederic Automatic illumination device for interior of cavity or container, e.g. handbag

Also Published As

Publication number Publication date
GB2107859B (en) 1985-01-30

Similar Documents

Publication Publication Date Title
GB2107859A (en) Night light activator
SE7606634L (en) CONTROL DEVICE FOR AUTOMATIC CONNECTION AND DISCONNECTION OF ATMINSTONE A LIGHT SOURCE
US3591825A (en) Clock and light-sensitive light control system for motor vehicles
GB1224133A (en) Improvements in or relating to traffic signals
JPS643697Y2 (en)
JPS5631841A (en) Headlight controller
GB2061489A (en) Activating Vehicle Lights at Night
JPH0218128A (en) Lighting control device for vehicle illumination equipment
JPS604827Y2 (en) auto-dimming mirror
KR0167952B1 (en) Automatic swing apparatus of room mirror for a vehicle
GB1356574A (en) Motor vehicle including dazzle-reducing means
JPH0346622Y2 (en)
KR100193662B1 (en) Automatic adjustment of brake lamp illuminance at vehicle brake
KR200299694Y1 (en) Automotive device for window radiance with sunshine interception
KR0120617B1 (en) Head lamp and taillamp control device
KR20000017346U (en) Lamp Control Ck&#39;t For Multipurpose Socket
KR960028202A (en) Left, right and rear monitoring system using CD camera
FR2600023A1 (en) Anti-black hole device for an automobile, with supports for interchangeable transistors. Device for automatically controlling the dipped-beam headlight and/or parking lights of automobiles by day and/or by night (underground ...)
JPS56165127A (en) Photographic device
KR970026454A (en) Light power disconnect device of car
JPS5559030A (en) Flasher control system for automobile headlight
JPS584293A (en) Power source switching circuit
JPS56106228A (en) Camera equipped with electric shutter
ES300089A1 (en) Connection system for lighting on automobile vehicles (Machine-translation by Google Translate, not legally binding)
ATE119342T1 (en) DOOR SYSTEM, ESPECIALLY DOOR INTERCOM SYSTEM.

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee