Patent ID: 9261690
Filing Date: 2016-02-16
CPC Classification: G02B

Claim Text:
1. A phase-contrast microscope system that observes a specimen comprising: an illumination optical system that illuminates the specimen with an illumination light from a light source; an imaging optical system that forms an image of the specimen from a light from the specimen; a first spatial modulation element that is disposed in a position of a pupil of the imaging optical system and changes an amplitude transmittance distribution of the light from the specimen; an image sensor that detects the image of the specimen by the imaging optical system and outputs a picture signal; a calculation section that calculates the amplitude transmittance distribution of the light from the specimen for observing the specimen on the basis of the output data detected by the image sensor and the amplitude transmittance distribution of the light from the specimen formed by the first spatial modulation element, wherein the first spatial light modulation element forms the amplitude distribution of the light from the specimen in different shapes sequentially, and wherein the calculation section calculates an optimum amplitude transmittance distribution of the light from the specimen to be used for observation of the specimen based on comparison of the output data for each of the different shapes.