Patent ID: 8873027

Claim:
A cell observation device comprising: a reflection interference measurement light source; a reflection interference light quantity adjustment unit which adjusts a light quantity of light emitted from the reflection interference measurement light source; a quantitative phase measurement light source; a quantitative phase light quantity adjustment unit which adjusts a light quantity of light emitted from the quantitative phase measurement light source; an imaging unit which images reflected light from a cell, of the light emitted from the reflection interference measurement light source, to generate a reflection interference image, and which images transmitted light through the cell, of the light emitted from the quantitative phase measurement light source, to generate a quantitative phase image; a first extraction unit which extracts a first parameter from the reflection interference image generated by the imaging unit; and a second extraction unit which extracts a second parameter from the quantitative phase image generated by the imaging unit, wherein during generation of the reflection interference image, the quantitative phase light quantity adjustment unit blocks the light from the quantitative phase measurement light source and the imaging unit images the reflected light, and wherein during generation of the quantitative phase image, the reflection interference light quantity adjustment unit blocks the light from the reflection interference measurement light source and the imaging unit images the transmitted light.