IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0417820
(2009-04-03)
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등록번호 |
US-7832908
(2011-01-16)
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발명자
/ 주소 |
- Peck, John Patrick
- Leib, III, William S.
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
18 인용 특허 :
15 |
초록
▼
A light-emitting diode (LED) reflector optic includes a reflector having a reflector having a plurality of reflecting surfaces, wherein each one of the plurality of reflecting surfaces is associated with at least one optical axis, each reflecting surface comprising a cross-section that is projected
A light-emitting diode (LED) reflector optic includes a reflector having a reflector having a plurality of reflecting surfaces, wherein each one of the plurality of reflecting surfaces is associated with at least one optical axis, each reflecting surface comprising a cross-section that is projected along a curved trajectory and a plurality of LEDs, wherein each one of the plurality of LEDs is positioned in a line parallel to the cross-section of an associated one of the plurality of reflecting surfaces and relative to the associated reflecting surface of the plurality of reflecting surfaces such that a central light-emitting axis of each one of the plurality of LEDs is angled relative to the at least one optical axis of the associated reflecting surface of the plurality of reflecting surfaces at about 90° and such that each of the reflecting surfaces redirects and collimates a light output of a respective each one of the plurality of LEDs at an angle of about 90° with respect to the central light emitting axis of each one of the plurality of LEDs, wherein each one of the plurality of reflecting surfaces receives light from each one of the plurality of LEDs from a focal distance of the associated one of the plurality of reflecting surfaces.
대표청구항
▼
The invention claimed is: 1. A light-emitting diode (LED) reflector optic, comprising: a reflector having a plurality of reflecting surfaces, wherein each one of said plurality of reflecting surfaces is associated with at least one optical axis, each reflecting surface comprising a cross-section th
The invention claimed is: 1. A light-emitting diode (LED) reflector optic, comprising: a reflector having a plurality of reflecting surfaces, wherein each one of said plurality of reflecting surfaces is associated with at least one optical axis, each reflecting surface comprising a cross-section that is projected along a curved trajectory; and a plurality of light emitting diodes (LEDs), wherein each one of the plurality of LEDs is positioned in a line parallel to said cross-section of an associated one of said plurality of reflecting surfaces and relative to said associated reflecting surface of said plurality of reflecting surfaces such that a central light-emitting axis of each one of the plurality of LEDs is angled relative to the at least one optical axis of said associated reflecting surface of the plurality of reflecting surfaces at about 90° and such that each of the reflecting surfaces redirects and collimates a light output of a respective each one of the plurality of LEDs at an angle of about 90° with respect to the central light emitting axis of each one of the plurality of LEDs, wherein each one of the plurality of reflecting surfaces receives light from each one of the plurality of LEDs from a focal distance of said associated one of said plurality of reflecting surfaces. 2. The LED reflector optic of claim 1, wherein the about 90° has a tolerance of ±30°. 3. The LED reflector optic of claim 1, wherein each reflecting surface comprises at least one of: a conic or a substantially conic shape. 4. The LED reflector optic of claim 1, wherein the cross-section that is projected along a curved trajectory comprises a plurality of the cross-sections that are angled relative to each other. 5. The LED reflector optic of claim 4, wherein each reflecting surface is associated with one of the plurality of optical axes, and for each reflecting surface: the associated optical axis, the associated central light emitting axis, and the curved trajectory are approximately mutually perpendicular. 6. The LED reflector optic of claim 5, wherein the approximately mutually perpendicular has a tolerance of about ±30°. 7. The LED reflector optic of claim 1, wherein the cross-section of each reflecting surface comprises a shape which is at least one of: a hyperbola, a parabola, an ellipse, a circle, or a modified conic. 8. The LED reflector optic of claim 1, wherein at least one of the plurality of reflecting surfaces comprises a faceted surface. 9. The LED reflector optic of claim 1, wherein at least one of the plurality of reflecting surface comprises at least one of: a metal or a reflective material. 10. The LED reflector optic of claim 1, wherein the reflector comprises at least one of: glass, plastic or a transparent material; and wherein the reflector reflects light using total internal reflection. 11. The LED reflector optic of claim 1, wherein the cross-section that is projected along a curved trajectory of said plurality of reflecting surfaces of the reflector and each one of the plurality of LEDs are configured to direct light along the optical axis with a beam spread of less than 10° in a direction perpendicular to the central light-emitting axis of each one of the plurality of LEDs. 12. The LED reflector optic of claim 1, wherein the LED reflector optic comprises a plurality of LED reflector optics. 13. The LED reflector optic of claim 1, wherein said light output is collimated with a beamspread of less than 10°. 14. The LED reflector optic of claim 1, wherein each one of the plurality of LEDs has a beam spread of about 120. degrees and the associated reflecting surface of the plurality of reflecting surfaces redirects and collimates the light of a respective each one of the plurality of LEDs by receiving the LED from about 90° on one side of the central light-emitting axis and about 45° on a second side of the central light-emitting axis. 15. A light-emitting diode (LED) reflector optic, comprising: a reflector having a plurality of reflecting surfaces, wherein each one of said plurality of reflecting surfaces is associated with at least one optical axis, each reflecting surface comprising a cross-section that is projected along a curved trajectory; and a plurality of light emitting diodes (LEDs) positioned in a straight line parallel to said linearly projected cross-section of an associated one of said plurality of reflecting surfaces and relative to said associated reflecting surface of said plurality of reflecting surfaces such that a central light-emitting axis of each one of the plurality of LEDs is angled relative to the at least one optical axis of said associated reflecting surface of the plurality of reflecting surfaces at about 0° and such that each of the reflecting surfaces redirects and collimates a light output of a respective each one of the plurality of LEDs at an angle of about 90° with respect to the central light emitting axis of each one of the plurality of LEDs , wherein each one of the plurality of reflecting surfaces receives light from each one of the plurality of LEDs from a focal distance of said associated one of said plurality of reflecting surfaces. 16. The LED reflector optic of claim 15, wherein the about 0° has a tolerance of ±30°. 17. The LED reflector optic of claim 15, wherein the cross-section that is projected along a curved trajectory comprises a plurality of the cross-sections that are angled relative to each other. 18. A method for transmitting light from a plurality of light emitting diodes (LEDs), comprising: arranging a plurality of reflecting surfaces relative to each other, each of the plurality of reflecting surfaces comprising a cross-section projected along a curved trajectory; positioning each one of the plurality of LEDs in a line parallel to said linearly projected cross-section of an associated one of the plurality of reflecting surfaces, wherein the positioning step angles a central light-emitting axis of each one of the plurality of LEDs relative to at least one optical axis associated with the plurality of reflecting surfaces at about 90° such that each of the reflecting surfaces redirects and collimates a light output of a respective each one of the plurality of LEDs at an angle of about 90° with respect to the central light emitting axis of each one of the plurality of LEDs, wherein each one of the plurality of reflecting surfaces receives light from each one of the plurality of LEDs from a focal distance of said associated one of said plurality of reflecting surfaces; and transmitting light from the plurality of LEDs onto the associated one of the plurality of reflecting surfaces. 19. The method of claim 18, wherein the about 90° has a tolerance of ±30°. 20. The method of claim 18, wherein said light output is collimated with a beamspread of less than 10°. 21. The method of claim 18, wherein the arranging step comprises: arranging the plurality of reflecting surfaces relative to each other so that a plurality of the cross-sections that are projected along a curved trajectory are angled relative to each other. 22. A reflector optic, comprising: a plurality of reflecting means for reflecting light in the direction of at least one optical axis, each reflecting means comprising a means for receiving light along a cross-section projected along a curved trajectory; and a plurality of light emitting means for emitting a hemisphere of light, each one of the plurality of light emitting means positioned in a line parallel to said linearly projected cross-section of an associated one of said plurality of reflecting means and such that a central light-emitting axis of each one of the plurality of light emitting means is angled relative to the at least one optical axis at about 90° and such that each of the plurality of reflecting means redirects and collimates a light output of a respective each one of the plurality of light emitting means at an angle of about 90° with respect to the central light emitting axis of each one of the plurality of light emitting means, wherein each one of the plurality of reflecting means receives light from each one of the plurality of light emitting means from a focal distance of said associated one of said plurality of reflecting means. 23. The reflector optic of claim 22, wherein the about 90° has a tolerance of ±30°. 24. The reflector optic of claim 22, wherein said light output is collimated with a beamspread of less than 10°0.
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