Multiple wavelength LED array illuminator for fluorescence microscopy
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-021/06
H05B-037/02
F21V-009/00
출원번호
US-0088033
(2011-04-15)
등록번호
US-8596815
(2013-12-03)
발명자
/ 주소
Lee, Jeffrey B.
Lu, Junying Jonathan
Schleicher, Robert E.
출원인 / 주소
DiCon Fiberoptics Inc.
대리인 / 주소
Davis Wright Tremaine LLP
인용정보
피인용 횟수 :
7인용 특허 :
34
초록▼
One embodiment provides light along an optical axis. It comprises a substrate and at least one array of multiple LED chips without individual packaging supported by the substrate. The LED chips emit light within different wavelength ranges and are distributed laterally with respect to the axis over
One embodiment provides light along an optical axis. It comprises a substrate and at least one array of multiple LED chips without individual packaging supported by the substrate. The LED chips emit light within different wavelength ranges and are distributed laterally with respect to the axis over an area, the LED chips having light emitting surfaces for emitting light in directions transverse to the area. An optical element adjacent to the light emitting surfaces of the LED chips in the at least one array collects and directs light emitted by the LED chips of the at least one array along the axis towards a target. Another embodiment is directed to a method for providing multiple wavelength light for fluorescent microscopy using the above system. Electric current is supplied to the multiple LED chips, causing them to emit light of multiple wavelengths. The currents supplied to the multiple LED chips are controlled so as to control the exposure of fluorescent dyes with different excitation wavelengths wherein the light emitted by the multiple LED chips include wavelength components at such different excitation wavelengths without having to move the multiple LED chips.
대표청구항▼
1. A multiple wavelength LED array illuminator for providing light along an optical axis, comprising: a substrate;at least one array of multiple LED chips without individual packaging supported by said substrate, wherein the LED chips emit light within different wavelength ranges and are distributed
1. A multiple wavelength LED array illuminator for providing light along an optical axis, comprising: a substrate;at least one array of multiple LED chips without individual packaging supported by said substrate, wherein the LED chips emit light within different wavelength ranges and are distributed laterally with respect to said axis over an area, said LED chips having light emitting surfaces for emitting light in directions transverse to said area; andan optical element adjacent to the light emitting surfaces of the LED chips in said at least one array that collects and directs light emitted by the LED chips of the at least one array along said axis towards a target. 2. The illuminator of claim 1, wherein the light-emitting area is substantially circular in shape and a diameter of the light-emitting area does not exceed 25 mm. 3. The illuminator of claim 1, wherein the dimensions of the light-emitting area does not exceed 25 mm. 4. The illuminator of claim 1, wherein the multiple LED chips are located less than about 15 mm from said axis. 5. The illuminator of claim 1, wherein the multiple LED chips are located less than about 10 mm from said axis. 6. The illuminator of claim 1, wherein the LED chips emit light within an ultraviolet wavelength range. 7. The illuminator of claim 1, wherein the optical element comprises a half-ball lens. 8. The illuminator of claim 1, further comprising a band pass filter. 9. The illuminator of claim 1, further comprising a collector lens for collecting light from the optical element and a lens focusing or collimating light from the collector lens to form a beam directed to the target. 10. The illuminator of claim 1, further comprising a device for adjusting distances between the optical element, collector lens and focusing/collimating lens for fluorescent microscopy. 11. The illuminator of claim 1, further comprising a diffusing/scattering/homogenizing element and an aperture between the collector lens and focusing/collimating lens. 12. The illuminator of claim 1, further comprising a mirror or a light guide for directing the light from the optical element to the target. 13. The illuminator of claim 1, the light guide comprising embedded diffusing elements. 14. The illuminator of claim 1, further comprising an electronic control circuit for supplying electric current to the at least one array of multiple LED chips, and at least one interface for receiving computer or user commands for controlling the electric current supplied by the circuit to control light emission by the multiple LED chips. 15. The illuminator of claim 1, further comprising a top hat diffuser. 16. A multiple wavelength LED array illuminator for providing light along an optical axis, comprising: a substrate;at least one array of multiple LED chips without individual packaging supported by said substrate, wherein the LED chips emit light within different wavelength ranges and are distributed laterally with respect to said axis over an area, said LED chips having light emitting surfaces for emitting light in directions transverse to said area; andan optical element adjacent to the light emitting surfaces of the LED chips in said at least one array that collects and directs light emitted by the LED chips of the at least one array along said axis towards a target, the at least one array comprising a plurality of subsets of LED chips, the illuminator further comprising a mechanism for moving the substrate relative to the optical element in a lateral direction transverse to the axis, to align one of the plurality of subsets of LED chips in the at least one array with the optical element, based on which subset of the LEDs within the at least one array is to be illuminated. 17. The illuminator of claim 16, the illuminator comprising a plurality of arrays of multiple LED chips supported by said substrate, wherein the mechanism moves the substrate relative to the optical element in order to align one of the plurality of arrays of multiple LED chips with the optical element. 18. The illuminator of claim 17, wherein each of the plurality of arrays of multiple LED chips emit light within a wavelength range that is different from those of light emitted by at least one of the remaining arrays. 19. The illuminator of claim 18, wherein each of the plurality of arrays of multiple LED chips emit light within a plurality of wavelength ranges that are different from those of light emitted by at least one of the remaining arrays. 20. The illuminator of claim 16, the illuminator comprising a plurality of arrays of multiple LED chips supported by said substrate and a plurality of optical elements, each of the optical elements located adjacent to a corresponding one of the arrays of multiple LED chips, wherein the mechanism moves the substrate relative to the axis in order to align one of the plurality of arrays of multiple LED chips and its corresponding optical element with the axis. 21. The illuminator of claim 20, wherein each of the plurality of arrays of multiple LED chips emit light within a wavelength range that is different from those of light emitted by at least one of the remaining arrays. 22. The illuminator of claim 21, wherein each of the plurality of arrays of multiple LED chips emit light within a plurality of wavelength ranges that are different from those of light emitted by at least one of the remaining arrays.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (34)
Fredricks, Dennis, Aquarium light fixture with latch mechanism and bracket.
Negley, Gerald H.; van de Ven, Antony Paul; Keller, Bernd P.; LeToquin, Ronan P.; Andrews, Peter Scott, High CRI lighting device with added long-wavelength blue color.
Ignatius Ronald W. (Dodgeville WI) Martin Todd S. (Dodgeville WI) Bula Raymond J. (Cross Plains WI) Morrow Robert C. (Madison WI) Tibbitts Theodore W. (Madison WI), Method and apparatus for irradiation of plants using optoelectronic devices.
Lee, Ho-Shang; Chiang, Brian I-Yuan; Lu, Junying Jonathan; Schleicher, Robert Eric, LED illuminator apparatus, using multiple luminescent materials dispensed onto an array of LEDs, for improved color rendering, color mixing, and color temperature control.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.