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1. (WO2019027705) SPECTRAL FILTER FOR HIGH-POWER FIBER ILLUMINATION SOURCES
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Pub. No.: WO/2019/027705 International Application No.: PCT/US2018/043211
Publication Date: 07.02.2019 International Filing Date: 23.07.2018
IPC:
G02B 5/20 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
20
Filters
Applicants:
KLA-TENCOR CORPORATION [US/US]; Legal Department One Technology Drive Milpitas, California 95035, US
Inventors:
HILL, Andrew; US
BACHAR, Ohad; IL
ABRAMOV, Avi; IL
MANASSEN, Amnon; IL
Agent:
MCANDREWS, Kevin; US
MORRIS, Elizabeth M.N.; US
Priority Data:
15/665,91101.08.2017US
62/539,54331.07.2017US
Title (EN) SPECTRAL FILTER FOR HIGH-POWER FIBER ILLUMINATION SOURCES
(FR) FILTRE SPECTRAL POUR SOURCES D'ÉCLAIRAGE À FIBRE HAUTE PUISSANCE
Abstract:
(EN) A spectral filter includes a curved filtering element including a concave surface forming a portion of a sphere. The concave surface may be positioned to receive light diverging from an output face of an optical fiber located at a first location proximate to a center of the sphere corresponding to the concave surface. The concave surface may transmit a first portion of a spectrum of the light. The concave surface may further reflect and focus a second portion of the spectrum to a second location proximate to the center of the sphere. The spectral filter may further include a collector to direct the second portion of the spectrum away from the output face of the optical fiber.
(FR) Selon l'invention, un filtre spectral comprend un élément de filtrage incurvé comprenant une surface concave formant une partie d'une sphère. La surface concave peut être positionnée pour recevoir la lumière divergeant d'une face de sortie d'une fibre optique située à un premier emplacement à proximité d'un centre de la sphère correspondant à la surface concave. La surface concave peut transmettre une première partie d'un spectre de la lumière. La surface concave peut en outre réfléchir et focaliser une seconde partie du spectre en un second emplacement à proximité du centre de la sphère. Le filtre spectral peut en outre comprendre un collecteur pour diriger la seconde partie du spectre à l'écart de la face de sortie de la fibre optique.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)