SOLID STATE LINEAR ARRAY MODULES FOR GENERAL ILLUMINATION
First Claim
1. An illumination module, comprising:
- a longitudinal support member including a base portion and a pair of sidewalls extending from the base portion, the base portion and the pair of sidewalls defining a channel that extends in a longitudinal direction;
a printed circuit board (PCB) on the base portion of the support member and extending in the longitudinal direction within the channel;
a plurality of light emitting diodes (LEDs) mounted on the PCB and arranged in an array extending in the longitudinal direction;
a reflective sheet within the channel and extending across the channel between the pair of sidewalls, wherein the PCB is between the reflective sheet and the base portion of the support member, wherein the reflective sheet includes a plurality of holes therein that are arranged to correspond with locations of the LEDs on the PCB, and wherein the LEDs are at least partially positioned within the holes; and
an optical film positioned in the channel and extending across the channel between the pair of sidewalls and defining an optical cavity between the reflective sheet and the optical film into which light is emitted by the LEDs, wherein the optical film, the reflective sheet and the sidewalls of the support member are configured to recycle light in the optical cavity by reflecting some light emitted by the LEDs back into the optical cavity and transmitting some light emitted by the LEDs out of the optical cavity.
3 Assignments
0 Petitions
Accused Products
Abstract
An illumination module includes a longitudinal support member including a base portion and a pair of sidewalls extending from the base portion that together define a channel that extends in a longitudinal direction. A printed circuit board (PCB) on the base portion extends in the longitudinal direction within the channel. A plurality of light emitting diodes (LEDs) are on the PCB in a linear array. A reflective sheet is within and extends across the channel, and includes a plurality of holes that correspond with locations of the LEDs on the PCB, and the LEDs are at least partially within the holes. An optical film extends across the channel above the reflective sheet and defines an optical cavity between the reflective sheet and the optical film. The optical film, the reflective sheet and the sidewalls of the support member are configured to recycle light in the optical cavity by reflecting some light emitted by the LEDs back into the optical cavity and transmitting some light emitted by the LEDs out of the optical cavity.
257 Citations
22 Claims
-
1. An illumination module, comprising:
-
a longitudinal support member including a base portion and a pair of sidewalls extending from the base portion, the base portion and the pair of sidewalls defining a channel that extends in a longitudinal direction; a printed circuit board (PCB) on the base portion of the support member and extending in the longitudinal direction within the channel; a plurality of light emitting diodes (LEDs) mounted on the PCB and arranged in an array extending in the longitudinal direction; a reflective sheet within the channel and extending across the channel between the pair of sidewalls, wherein the PCB is between the reflective sheet and the base portion of the support member, wherein the reflective sheet includes a plurality of holes therein that are arranged to correspond with locations of the LEDs on the PCB, and wherein the LEDs are at least partially positioned within the holes; and an optical film positioned in the channel and extending across the channel between the pair of sidewalls and defining an optical cavity between the reflective sheet and the optical film into which light is emitted by the LEDs, wherein the optical film, the reflective sheet and the sidewalls of the support member are configured to recycle light in the optical cavity by reflecting some light emitted by the LEDs back into the optical cavity and transmitting some light emitted by the LEDs out of the optical cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A subassembly for an illumination module including a support member having a base portion defining a channel that extends in a longitudinal direction, the subassembly comprising:
-
a printed circuit board (PCB) on the base portion of the support member and extending in the longitudinal direction within the channel; and a plurality of light emitting diodes (LEDs) on the PCB and arranged in an array extending in the longitudinal direction; wherein the plurality of light emitting diodes comprises a metameric grouping of LEDs, wherein chromaticities of the LEDs of the metameric grouping are selected so that a combined light generated by a mixture of light from each of the LEDs of the metameric grouping comprises light having about a target chromaticity. - View Dependent Claims (18, 19, 20, 21)
-
-
22. A solid state luminaire, comprising:
-
a troffer including a base portion and sidewall portions; a plurality of longitudinal illumination modules on the base portion of the troffer;
wherein each of the plurality of longitudinal illumination modules comprises;a longitudinal support member including a base and a pair of sidewalls extending from the base, the base and the pair of sidewalls defining a channel that extends in a longitudinal direction; a printed circuit board (PCB) on the base of the support member and extending in the longitudinal direction within the channel; a plurality of light emitting diodes (LEDs) on the PCB and arranged in an array extending in the longitudinal direction; a reflective sheet within the channel and above the PCB and extending across the channel between the pair of sidewalls, wherein the PCB is between the reflective sheet and the base of the support member, wherein the reflective sheet includes a plurality of holes therein that are arranged to correspond with locations of the LEDs on the PCB, and wherein the LEDs are at least partially positioned within the holes; and an optical film positioned in the channel and extending across the channel between the pair of sidewalls and defining an optical cavity between the reflective sheet and the optical film into which light is emitted by the LEDs, wherein the optical film, the reflective sheet and the sidewalls of the support member are configured to recycle light in the optical cavity by reflecting some light emitted by the LEDs back into the optical cavity and transmitting some light emitted by the LEDs out of the optical cavity.
-
Specification