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US 9,068,718 B2Granted
Indirect excitation of photoreactive materials coated on a substrate with spectrum simulation
AssigneeProduction Resource Group, LLC
InventorsRichard Pierceall, Ian Clarke
Life of this patent
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Abstract
A remote phosphor light which simulates the spectrum of a specified real world light, e.g. a tungsten or a daylight bulb.
Claims20
A lighting device, comprising:
- a housing;
- a light source, held by the housing and emitting light;
- a mixing chamber, formed within the housing, receiving the emitted light;
- a substrate coated with a photoreactive material, held by the housing adjacent the mixing chamber and receiving the emitted light from the mixing chamber;
- wherein the substrate is formulated to produce an output light when illuminated by the emitted light,
- where the output light as produced has multiple lighting components, each of the components representing a light output at a specific color temperature, and there being at least eight of said components in said output light, amounts of output light as produced at the components being different for at least a plurality of the components, and where the components which are not the same for the color temperatures each match within 80% of corresponding components at of a real world light source.
3 more elements
A lighting device, comprising:
- a housing;
- a light source, held by the housing and emitting light at a first color as emitted light;
- a mixing chamber, formed within the housing, receiving the emitted light;
- a phosphor coated substrate, removably held by the housing adjacent the mixing chamber and receiving the emitted light from the mixing chamber;
- wherein the phosphor coated substrate produces an output light when illuminated by the emitted light;
- and
- a notch filter, which is configured to remove a part of light from the output light that is at the first color and outputting output light, which includes part of said first color, as a component thereof, where an amount of said first color is reduced by said notch filter.
4 more elements
A lighting device, comprising:
- a housing;
- a light source, held by the housing and emitting light;
- a mixing chamber, formed within the housing, receiving the emitted light;
- a first substrate coated with a photoreactive material, removably held by the housing adjacent the mixing chamber and receiving the emitted light from the mixing chamber,
- wherein the housing includes a slot along which the first substrate slides, wherein the first substrate produces an output light when illuminated by the emitted light,
- wherein the first substrate is slid along the slot in order to change characteristics of the emitted light, where said first substrate in a first location in the slot produces first characteristics and said first substrate in a second location in the slot produces second characteristics.
3 more elements
Dependencies are inferred from the claim text.