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US 9,852,667 B2Granted
Current-generated photo-luminescent hybrid sign
AssigneeGlow Light Emergency Exit Products, LLC
InventorsO. Michael Roberts, Thomas Wells Brignall, Jr.
Life of this patent
Estimating the term…
Abstract
A current-generated photo-luminescent hybrid sign is provided that includes one or more light emitting elements within a channel in the frame to evenly distribute light, while at the same time energizing a photo-luminescent glow material in case of power outage. A method of use of the sign is also provided.
Claims14
A photo-luminescent sign comprising:
- a front panel comprising at least one photo-luminescent member which is energizable by exposure to a light source, the photo-luminescent member comprising a the thermoplastic polymer and a photo-luminescent material having an average particle size in the range of about 30 microns to about 40 microns and being capable of emitting light visible by the human eye;
- a lengthwise rear panel disposed adjacent to and behind the front panel;
- a frame attached to both the front panel and the rear panel, the front panel, rear panel, and frame together defining a housing;
- a light source within the housing and positioned not immediately adjacent the at least one photo-luminescent member such that the light source may be used to energize at least a portion of the photo-luminescent member;
- and
- a power converter capable of converting both 120-volt electricity and 277-volt electricity to a 12-volt output, the power converter in electrical communication with the light source,
- the photo-luminescent member when energized is seen at least 100 feet away from the sign for at least 90 minutes without the use of electricity.
4 more elements
A photo-luminescent sign comprising:
- a housing;
- a front panel connected to the housing and comprising a first plate and a second plate, the first plate positioned adjacent to and in front of the second plate and having at least one transparent area therein, the second plate comprising a photo-luminescent material having an average particle size in the range of about 30 microns to about 40 microns and being semi-transparent such that light can pass therethrough to the at least one transparent area of the first plate;
- and
- a light source disposed within the housing and spaced from the second plate, the light source disposed to emit light to and through the second plate to the at least one transparent area of the first plate, and to simultaneously energize the photo-luminescent material of the second plate,
- the photo-luminescent material of the second plate when energized is seen at least 100 feet away from the sign for at least 90 minutes without the use of electricity.
2 more elements
Dependencies are inferred from the claim text.