About 1,388,695 results (5,430 milliseconds)

US20100327766A1 - Wireless emergency lighting system - Google ...

https://patents.google.com/patent/US20100327766A1/en
... light emitting diode (LED) based lighting devices. More particularly, the ... level while still reducing the power consumed from the AC power source ...

US3739226A - Emergency light unit for mounting to an electrical ...

https://patents.google.com/patent/US3739226A/en
This invention relates to an emergency light unit of a size for plugging into a standard electrical wall outlet. The unit is self-contained and includes ...

Lighting Calcs and guide pro - Apps on Google Play

https://play.google.com/store/apps/details?id=com.EduMission.lightingPro
Mar 29, 2023 ... Lighting calculations features :- CIBSE LUX Level Recomendations Sports lighting level. Emergency Lighting Room Index (K) Calculator

EP0828657B1 - Emergency lighting - Google Patents

https://patents.google.com/patent/EP0828657B1/en
The photoluminescent floor-level emergency exit lighting system may be ... illumination level of 1000 Lux. Test at 23°C. Luminance Level 1000 Lux ...

US8415901B2 - Switch sensing emergency lighting device - Google ...

https://patents.google.com/patent/US8415901B2/en
In embodiments, the LED based light source may take the form of a standard light bulb that plugs into a standard lighting socket or fixture. Images (42) ...

WO1996033093A1 - Emergency lighting - Google Patents

https://patents.google.com/patent/WO1996033093A1/en
The photoluminescent floor-level emergency exit lighting system may be ... illumination level of 1000 Lux. Test at 23°C. Figure imgf000020_0001. Test ...

US6057646A - Light level monitoring and ATM control system for ...

https://patents.google.com/patent/US6057646A/en
The invention is a light level monitoring and ATM control system which is designed for operation at a typical automated teller machine (ATM).

US20140368342A1 - Integration of led lighting control with ...

https://patents.google.com/patent/US20140368342A1/en
... standard light fixture, the at least one LED-based light comprising: an emergency detector having a sensor operable to detect an emergency, wherein the ...

Lighting Calculations – Apps on Google Play

https://play.google.com/store/apps/details?id=it.Ettore.calcoliilluminotecnici&hl=en_ZA
Fundamental for those who want to correctly calculate the lighting of an environment. Using this app, with its diagrams and calculations, ...

Detecting trip hazards - Lighting Research Group

https://sites.google.com/sheffield.ac.uk/lightingresearchgroup/publications/lighting-for-pedestrians/detecting-trip-hazards
This used only younger test participants but increased the number of illuminance levels (0.2, 0.63, 2.0, 6.3, 20 lux) to enable the detection vs illuminance ...

WO2014162131A1 - Emergency exit sign - Google Patents

https://patents.google.com/patent/WO2014162131A1/en
To further increase the light levels of the LEDs 3 showing behind the pictogram sign 1, a printing process of perforated printing can be used (also known as ...

US9046244B2 - Lighting apparatus - Google Patents

https://patents.google.com/patent/US9046244B2/de
the power of the bar-shaped lamp 4 is adjusted to increases up to 26w, so as to ensure that the illuminance of the ground still remains at a level of 60 lux.

US9635727B2 - Light and light sensor - Google Patents

https://patents.google.com/patent/US9635727B2/en
determining, using a sensor, a brightness level of light during operation of an LED-based lighting device; ... Emergency vehicle warning light. US3746918A ...

US20020048174A1 - LED double light bar and warning light signal ...

https://patents.google.com/patent/US20020048174A1/en
... LED technology while simultaneously utilizing existing standard bases in a standard lamp ... level of illumination for an area adjacent to an emergency vehicle.

US6705745B1 - Rotational led reflector - Google Patents

https://patents.google.com/patent/US6705745B1/en
The warning signal light provides various colored light signals for independent use or use by an emergency vehicle. These light signals may include a strobe ...

US9574717B2 - LED-based light with addressed LEDs - Google ...

https://patents.google.com/patent/US9574717B2/en
The embodiments disclosed herein relate to a light emitting diode (LED)-based light for replacing a fluorescent light in a standard fluorescent light fixture.

Lighting Calcs and guide pro – Google Play ilovalari

https://play.google.com/store/apps/details?id=com.EduMission.lightingPro&hl=uz
Lighting calculations features :- CIBSE LUX Level Recomendations Sports lighting level. Emergency Lighting Room Index (K) Calculator

US7033036B2 - LED light bar - Google Patents

https://patents.google.com/patent/US7033036B2/en
... light intensity to modify a standard lighting effect. The warning lights as ... level of illumination for an area adjacent to an emergency vehicle. The ...

US7049761B2 - Light tube and power supply circuit - Google Patents

https://patents.google.com/patent/US7049761B2/en
The PWM duty cycle can be adjusted or varied by control circuitry (not shown) to maintain the power consumption of the LEDs 22 at safe levels. The DC power is ...

US9265112B2 - LED light control and management system - Google ...

https://patents.google.com/patent/US9265112B2/en
2 , light source 161 may replace a standard fluorescent tube light fixture. This can be accomplished by replacing the entire fixture, such that ballasts and ...