Title:
SPECTROPHOTOMETER HVING DOUBLE OPTICAL PATHS, AND COLOR MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2022/000661
Kind Code:
A1
Abstract:
A spectrophotometer having double optical paths, and a color measurement method. The spectrophotometer comprises an integrating sphere (6), a light source (9) fitted with a light-transmitting hole (8) of the integrating sphere (6), and a sensor (1) fitted with a measurement port and a detection hole (5) of the integrating sphere (6), a second shutter (4), a semi-reflective and semi-transmissive device (16) and lenses (15, 17) fitted between the detection hole (5) and the sensor (1), and a light guide device and a first shutter (2) fitted between the light guide hole (7) provided on the integrating sphere (6) and the semi-reflective and semi-transmissive device (16). The color measurement method comprises: (S1) closing the first shutter (2), and opening the second shutter (4), so that light, reflected at the measurement port (11), of the surface of a measured object enters the sensor (1) through a transmitting surface of the semi-reflective and semi-transmissive device (16) and the lenses (15, 17) provided to fit the semi-reflective and semi-transmissive device (16), and the sensor (1) measures a spectrum reflection signal on the surface of the object; (S2) opening the first shutter (2), and closing the second shutter (4), so that light, reflected by the internal surface, of the integrating sphere (6) enters the sensor (1) through a reflective surface of the semi-reflective and semi-transmissive device (16), and the sensor (1) measures a spectrum reflection signal of the light source (9); and (S3) calculating a final sampling signal.
Inventors:
YUAN KUN (CN)
GONG SHUANGHU (CN)
WANG JIAN (CN)
GONG SHUANGHU (CN)
WANG JIAN (CN)
Application Number:
PCT/CN2020/104778
Publication Date:
January 06, 2022
Filing Date:
July 27, 2020
Export Citation:
Assignee:
UNIV JILIANG CHINA (CN)
International Classes:
G01J3/46; G01J3/02
Foreign References:
| CN212340438U | 2021-01-12 | |||
| CN202710184U | 2013-01-30 | |||
| CN101907493A | 2010-12-08 | |||
| CN204594582U | 2015-08-26 | |||
| CN105318970A | 2016-02-10 | |||
| CN206161160U | 2017-05-10 | |||
| JP2019052972A | 2019-04-04 |
Attorney, Agent or Firm:
HANGZHOU ZHEKE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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