Title:
FLUORESCENCE OBSERVATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/084268
Kind Code:
A1
Abstract:
A fluorescence observation device for observing fluorescence from an observation object including a negative-type switching fluorescent substance transitioned from an inactivated state to an activated state by activation light and excited by pump light in the activated state, the fluorescence observation device being provided with: a first intensity modulation unit for modulating the intensity of the activation light at a frequency f1; a second intensity modulation unit for modulating the intensity of probe light at a frequency f3 different from the frequency f1, the probe light inducing stimulated emission by the observation object; a light receiving unit for receiving the pump light and fluorescence from the observation object irradiated by the intensity-modulated probe light and the activation light; and a detection unit for detecting a frequency f1 + f3 component in a light reception signal from the light receiving unit.
Inventors:
DAKE FUMIHIRO (JP)
Application Number:
PCT/JP2017/039826
Publication Date:
May 11, 2018
Filing Date:
November 02, 2017
Export Citation:
Assignee:
NIKON CORP (JP)
International Classes:
G02B21/06; G01N21/64
Domestic Patent References:
| WO2011099269A1 | 2011-08-18 |
Foreign References:
| JP2014097191A | 2014-05-29 | |||
| JP2014157372A | 2014-08-28 | |||
| JP2010060656A | 2010-03-18 | |||
| JP2011145487A | 2011-07-28 |
Other References:
See also references of EP 3537200A4
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Download PDF: