Title:
SYSTEM AND METHOD FOR TESTING SPECTRAL RESPONSE SPEED OF TUNABLE FILTER
Document Type and Number:
WIPO Patent Application WO/2022/006811
Kind Code:
A1
Abstract:
A system for testing spectral response speed of a tunable filter (4), comprising a collimating light source, a light splitting element (5), a focusing lens (6), and a light spot position imaging recording device (7) which are sequentially arranged. The tunable filter (4) is provided between the collimating light source and the light splitting element (5) and configured to be continuously tuned within a certain wavelength range in testing; the light splitting element (5) causes light beams that pass through the tunable filter (4) and have different wavelength bands to form diffracted light beams or reflected light beams corresponding to the different wavelength bands; the focusing lens (6) focuses the light beams; and the light spot position imaging recording device (7) records imaging position change information of the diffracted light beams or reflected light beams corresponding to the different wavelength bands. The present application also provides a testing method. Different diffraction angles or refraction angles are provided by means of the light splitting element (5), so that light spot position distributions of corresponding wavelengths are formed at a spatial receiving end, and change information in the spectral dimension is converted to the spatial dimension so as to obtain the wavelength response speed of the tunable filter (4).
Inventors:
ZHEN MINGLIANG (CN)
YU PINGPING (CN)
GUO BIN (CN)
HUANG JINBIAO (CN)
YU PINGPING (CN)
GUO BIN (CN)
HUANG JINBIAO (CN)
Application Number:
PCT/CN2020/101055
Publication Date:
January 13, 2022
Filing Date:
July 09, 2020
Export Citation:
Assignee:
SHENZHEN HYPERNANO OPTICS TECH CO LTD (CN)
International Classes:
G01M11/02; G02B5/20
Foreign References:
| CN109196333A | 2019-01-11 | |||
| CN101688808A | 2010-03-31 | |||
| CN108919478A | 2018-11-30 | |||
| CN1799001A | 2006-07-05 | |||
| CN209624935U | 2019-11-12 | |||
| CN102494873A | 2012-06-13 | |||
| US5321539A | 1994-06-14 |
Other References:
See also references of EP 3964815A4
Attorney, Agent or Firm:
XIAMEN FEBE INTELLECTUAL PROPERTY AGENCY GP (CN)
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