Reflector and LED light-emitting unit using the same
First Claim
1. A reflector for reflecting light emitted from at least a light emitting diode (LED) element which is received in the reflector, the reflector comprising:
- a top wall having a top surface; and
at least a light-reflecting unit recessed downwardly from the top surface of the top wall, the at least a light-reflecting unit having a reflecting face for reflecting light generated by the at least an LED element upwardly through the top surface of the top wall, the reflecting face comprising two curved faces having axes intersecting with each other, the curved faces intersecting with each other at two lines, a distance between two intersecting points of the two lines with a cross section of the reflector which is parallel to the top surface of the top wall of the reflector being larger than that between any other two intersecting points of the reflecting face intersecting with the cross section of the reflector;
wherein each of the curved faces is one of a half-conical face and a half-parabolic face.
1 Assignment
0 Petitions
Accused Products
Abstract
An LED light-emitting unit comprises an LED element having an optical axis and a reflector covering the LED element. The reflector comprises a light-reflecting unit recessed downwardly from a top surface of a top wall of the reflector and located corresponding to the LED element. The light-reflecting unit has a reflecting face comprising two curved faces intersecting with each other at two lines. The curved faces have axes intersecting with each other. A distance between two intersecting points of the two lines with a cross section of the reflector which is parallel to the top surface of the top wall of the reflector is larger than that between any other two intersecting points of the reflecting face intersecting with the cross section of the reflector.
38 Citations
16 Claims
-
1. A reflector for reflecting light emitted from at least a light emitting diode (LED) element which is received in the reflector, the reflector comprising:
-
a top wall having a top surface; and at least a light-reflecting unit recessed downwardly from the top surface of the top wall, the at least a light-reflecting unit having a reflecting face for reflecting light generated by the at least an LED element upwardly through the top surface of the top wall, the reflecting face comprising two curved faces having axes intersecting with each other, the curved faces intersecting with each other at two lines, a distance between two intersecting points of the two lines with a cross section of the reflector which is parallel to the top surface of the top wall of the reflector being larger than that between any other two intersecting points of the reflecting face intersecting with the cross section of the reflector; wherein each of the curved faces is one of a half-conical face and a half-parabolic face. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An LED (light emitting diode) light-emitting unit comprising:
-
at least an LED light-emitting element having an optical axis; a reflector having a top wall with a top surface, the reflector covering the at least a light-emitting element and comprising at least a light-reflecting unit recessed downwardly from the top surface of the top wall and located corresponding to the at least an LED light-emitting element so that light generated by the at least an LED light-emitting element is reflected by the at least a light-reflecting unit upwardly through the top surface of the top wall; wherein the at least a light-reflecting unit has a reflecting face comprising two curved faces intersecting with each other at two lines, the curved faces having axes intersecting with each other, a distance between two intersecting points of the two lines with a cross section of the reflector which is parallel to the top surface of the top wall of the reflector being larger than that between any other two intersecting points of the reflecting face intersecting with the cross section of the reflector; wherein the at least a light-reflecting unit includes a plurality of light-reflecting units, and two adjacent light-reflecting units are spaced from each other, a mounting pole being disposed between the two adjacent light-reflecting units. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
-
-
14. A reflector for reflecting light emitted from at least a light emitting diode (LED) element which is received in the reflector, the reflector comprising:
-
a top wall having a top surface; at least a light-reflecting unit recessed downwardly from the top surface of the top wall, the at least a light-reflecting unit having a reflecting face for reflecting light generated by the at least an LED element upwardly through the top surface of the top wall, the reflecting face comprising two curved faces having axes intersecting with each other, the curved faces intersecting with each other at two lines, a distance between two intersecting points of the two lines with a cross section of the reflector which is parallel to the top surface of the top wall of the reflector being larger than that between any other two intersecting points of the reflecting face intersecting with the cross section of the reflector; and a circumferential wall extending downwards from a peripheral edge of the top wall, wherein the circumferential wall surrounds the at least an LED element to protect the at least an LED element; wherein at least a groove is defined in the top wall, communicating with the at least a light-reflecting unit. - View Dependent Claims (15, 16)
-
Specification