Title:
MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/264495
Kind Code:
A1
Abstract:
A measurement device 1 comprises an excitation optical system 3 for guiding excitation light L1 toward an object S under measurement, an illumination optical system 10 for forming an illumination spot Lb on the object S under measurement from illumination light L3, and an imaging unit 11 for imaging the illumination spot Lb on the object S under measurement. The illumination optical system 10 comprises a light-transmitting member comprising a central region 51 having a first color and a peripheral region 52 that surrounds the central region 51 and has a second color different from the first color. The excitation optical system 3 and illumination optical system 10 are optically connected such that, in the field of view of the imaging unit 11, the emission spot La of the excitation light L1 on the object S under measurement is included in a central spot region Lc illuminated by the illumination light L3 that has passed through the central region 51 and is surrounded by a peripheral spot region Ld illuminated by the illumination light L3 that has passed through the peripheral region 52.
Inventors:
SUZUKI KENGO (JP)
IKEMURA KENICHIRO (JP)
IGUCHI KAZUYA (JP)
IKEMURA KENICHIRO (JP)
IGUCHI KAZUYA (JP)
Application Number:
PCT/JP2022/005179
Publication Date:
December 22, 2022
Filing Date:
February 09, 2022
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
G01N21/64
Domestic Patent References:
| WO2003067230A1 | 2003-08-14 | |||
| WO2014178294A1 | 2014-11-06 |
Foreign References:
| JP2017142143A | 2017-08-17 | |||
| JP2019124542A | 2019-07-25 | |||
| JP2003077141A | 2003-03-14 |
Other References:
KOJIMA KAZUNOBU; IKEDA HIROTAKA; FUJITO KENJI; CHICHIBU SHIGEFUSA F.: "Demonstration of omnidirectional photoluminescence (ODPL) spectroscopy for precise determination of internal quantum efficiency of radiation in GaN single crystals", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 111, no. 3, 21 July 2017 (2017-07-21), 2 Huntington Quadrangle, Melville, NY 11747, XP012220257, ISSN: 0003-6951, DOI: 10.1063/1.4995398
KOJIMA K.; IKEMURA K.; MATSUMORI K.; YAMADA Y.; KANEMITSU Y.; CHICHIBU S. F.: "Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy", APL MATERIALS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 7, no. 7, 31 July 2019 (2019-07-31), 2 Huntington Quadrangle, Melville, NY 11747 , XP012239507, DOI: 10.1063/1.5110652
KAZUNOBU KOJIMA ET AL.: "Demonstration of omnidirectional photoluminescence (ODPL) spectroscopy for precise determination of internal quantum efficiency of radiation in GaN single crystals", APPLIED PHYSICS LETTER, vol. 111, 2017, pages 032111, XP012220257, DOI: 10.1063/1.4995398
KAZUNOBU KOJIMA ET AL.: "Determination of absolute value of quantum efficiency of radiation in high quality GaN single crystals using an integrating sphere", JOURNAL OF APPLIED PHYSICS, vol. 120, 2016, pages 015704, XP012209055, DOI: 10.1063/1.4955139
KOJIMA K.; IKEMURA K.; MATSUMORI K.; YAMADA Y.; KANEMITSU Y.; CHICHIBU S. F.: "Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy", APL MATERIALS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 7, no. 7, 31 July 2019 (2019-07-31), 2 Huntington Quadrangle, Melville, NY 11747 , XP012239507, DOI: 10.1063/1.5110652
KAZUNOBU KOJIMA ET AL.: "Demonstration of omnidirectional photoluminescence (ODPL) spectroscopy for precise determination of internal quantum efficiency of radiation in GaN single crystals", APPLIED PHYSICS LETTER, vol. 111, 2017, pages 032111, XP012220257, DOI: 10.1063/1.4995398
KAZUNOBU KOJIMA ET AL.: "Determination of absolute value of quantum efficiency of radiation in high quality GaN single crystals using an integrating sphere", JOURNAL OF APPLIED PHYSICS, vol. 120, 2016, pages 015704, XP012209055, DOI: 10.1063/1.4955139
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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