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US 2018/0003373 A1Published application
LED Luminaire Tertiary Optic System
AssigneeKenall Manufacturing Company
InventorsBrandon Stolte, Kevin Dahlen, James W. Hawkins
Life of this patent
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Abstract
A lens system for LED based light fixtures having a substantially coplanar array of LED's with a requirement for a wide angle of illumination. And in particular, light fixtures comprising LED lights used in low bay applications.
Claims22
1-21. (canceled)
A light fixture having reduced glare from a light emitting diode (LED) array comprising:
- (i) a generally coplanar LED array having a plurality of LEDs each LED generating a quantum of light;
- (ii) a primary optic configuration receiving each quantum of light and creating a plurality of main beams of light, each main beam of light disposed at a high incidence angle relative to the LED substrate;
- (iii) a refractive secondary optic configuration disposed adjacent to the primary optic configuration and receiving the plurality of main beams of light from the primary optic configuration;
- (iv) a tertiary optic configuration being angularly disposed from the primary optic configuration and not immediately adjacent to the LED array and situated to receive and disperse the main beam from each LED;
- (v) a treatment applied to the tertiary optic configuration, the treatment dispersing the main beam from each LED into a distributed plurality of rays collectively having a substantially batwing distribution with a type V distribution to create a larger, more homogenous luminary element with lower glare than the main beams.
2 more elements
A method of reducing glare from a lighting fixture having an array of LEDs, the method comprising:
- (i) generating a quantum of light from each of a plurality of LEDs in an LED array carried by a substantially coplanar LED substrate;
- (ii) focusing each quantum of light into a main beam of light through a primary optic configuration such that each main beam of light is disposed at a high incidence angle relative to the LED substrate;
- (iii) focusing each main beam of light through a refractive secondary optic configuration disposed adjacent to the primary optic configuration;
- (iv) receiving each main beam of light with a tertiary optic configuration that is angularly disposed from the primary optic and is not immediately adjacent to the LED array;
- (v) dispersing each main beam of light through the tertiary optic configuration and into a distributed plurality of rays with a treatment applied to the tertiary optic configuration, the plurality of rays collectively having a substantially batwing distribution with a type V distribution, thereby creating a larger, more homogenous luminary element with lower glare than the main beams.
2 more elements
Dependencies are inferred from the claim text.