Light reflector device for light emitting diode (LED) array
First Claim
Patent Images
1. A light device comprising:
- (a) a printed circuit board on which a plurality of light emitting diodes (LEDs) are mounted, a light intensity distribution output from the LEDs having 50% intensity values at about +/−
60 degrees;
(b) a master reflector including a plurality of individual reflectors, one of said plurality of individual reflectors configured to surround at least one of the plurality of LEDs, each individual reflector including an opening through which a respective at least one of the plurality of LEDs can pass, and including reflective surfaces as sidewalls of the opening surrounding the respective at least one of the plurality of LEDs; and
wherein one of the LEDs is placed in a center of a respective individual reflector at a position such that light output from the one LED beyond +/−
50 degrees impinges on the reflective sidewalls to be reflected, and each individual reflector modifies a light intensity portion of the respective surrounded LED to provide a light output in which an intensity value near 0 degrees is about one-half intensity peaks beyond 20 degrees and beyond −
20 degrees.
2 Assignments
0 Petitions
Accused Products
Abstract
A reflector device to be utilized with light emitting diodes (LEDs), and particularly with high-flux LEDs. In the reflector structure individual reflector portions surround at least one LED. Light output from each individual LED is reflected by sloping walls of each individual reflector portion and is redirected. As a result, light that may otherwise be lost is redirected to a more useful direction. Each individual reflector portion can have a cross-section of a conic shape, a complicated curve, and can also be oval in shape. A light device is realized by utilizing such a master reflector with an LED light source.
150 Citations
21 Claims
-
1. A light device comprising:
-
(a) a printed circuit board on which a plurality of light emitting diodes (LEDs) are mounted, a light intensity distribution output from the LEDs having 50% intensity values at about +/−
60 degrees;(b) a master reflector including a plurality of individual reflectors, one of said plurality of individual reflectors configured to surround at least one of the plurality of LEDs, each individual reflector including an opening through which a respective at least one of the plurality of LEDs can pass, and including reflective surfaces as sidewalls of the opening surrounding the respective at least one of the plurality of LEDs; and wherein one of the LEDs is placed in a center of a respective individual reflector at a position such that light output from the one LED beyond +/−
50 degrees impinges on the reflective sidewalls to be reflected, and each individual reflector modifies a light intensity portion of the respective surrounded LED to provide a light output in which an intensity value near 0 degrees is about one-half intensity peaks beyond 20 degrees and beyond −
20 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A light device comprising:
-
(a) means for supporting a plurality of light emitting diodes (LEDs), a light intensity distribution output from the LEDs having 50% intensity values at about +/−
60 degrees;(b) master reflecting means including a plurality of individual reflecting means, one of said plurality of individual reflecting means including an opening through which a respective at least one of the plurality of LEDs can pass, and including reflective surfaces as sidewalls of the opening surrounding at least one of the plurality of LEDs and for reflecting light output from the respective at least one of the plurality of LEDs; and wherein one of the LEDs is placed in a center of a respective individual reflecting means at a position such that light output from the one LED beyond +/−
50 degrees impinges on the reflective sidewalls to be reflected, and each individual reflecting means modifies a light intensity portion of the surrounded LED to provide a light output in which an intensity value near 0 degrees is about one-half intensity peaks beyond 20 degrees and beyond −
20 degrees. - View Dependent Claims (17, 18, 19, 20, 21)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeDialight Corporation (Dialight PLC)
-
Original AssigneeDialight Corporation (Dialight PLC)
-
InventorsVerdes, Anthony, You, Chenhua, Lomberg, Markus, Yang, Yubo, Abdelhafez, Mohamed, Hertrich, Michael
-
Primary Examiner(s)Lee; Jong-Suk James
-
Assistant Examiner(s)Negron; Ismael
-
Application NumberUS10/732,513Publication NumberTime in Patent Office1,405 DaysField of Search362/238, 362/241, 362/346, 362/227, 362/235, 362/236, 362/237, 362/240, 362/249, 362/317, 362/341, 362/347, 362/348, 362/350, 362/800, 362/247, 257/87, 257/88, 257/98, 313/500US Class Current362/241CPC Class CodesF21V 17/12 by screwingF21V 19/0035 the fastening means being c...F21V 19/0055 by screwingF21V 23/005 the substrate is supporting...F21V 23/0442 activated by means of a sen...F21V 23/0457 the sensor sensing the oper...F21V 7/0083 Array of reflectors for a c...F21V 7/09 with a combination of diffe...F21Y 2105/10 comprising a two-dimensiona...F21Y 2115/10 Light-emitting diodes [LED]
