Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
OBSERVATION DEVICE AND OBSERVATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/205783
Kind Code:
A1
Abstract:
An observation device 1A comprises: a light source 11; a lens 12; a polarizer 13; a first prism 14; a condenser lens 15; an objective lens 21; a second prism 22; a 1/4 waveplate 23; a lens 24; a polarization camera 26; and an analysis unit 40. The first prism 14 and the second prism 22 are Wollaston prisms or Nomarski prisms, for example. The 1/4 waveplate 23: receives input of light output from the second prism 22; and outputs two light beams of circularly polarized light with mutually different rotation directions. The polarization camera 26: receives input of the two light beams which have been formed into circularly polarized light beams with mutually different rotation directions by the 1/4 waveplate 23; and acquires an interference image on an imaging surface for each of three or more polarization components. Due to this configuration, realized is an observation device which facilitates adjustment of an optical system and allows a complex amplitude image with improved quantitative characteristics to be obtained in a short time.

Inventors:
YASUHIKO OSAMU (JP)
TAKEUCHI KOZO (JP)
Application Number:
PCT/JP2021/008235
Publication Date:
October 14, 2021
Filing Date:
March 03, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
G02B21/06; G02B5/30; G02B21/14
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Download PDF: