| abstract |
The invention discloses a phase microscopic imaging device and method based on structured light illumination. The device includes an illumination module, a beam modulation module and a differential interference imaging module. The lighting module includes a light source and a first telescope unit; the beam modulation module includes a polarizer, a beam digital modulation unit and a second telescope unit, and the beam digital modulation unit is used to generate fringe structured light with different angles and phases; differential interference imaging module Including the third telescope unit and the imaging unit. The light emitted by the light source is received by the imaging unit after passing through the first telescope unit, the polarizer, the light beam digital modulation unit, the second telescope unit and the third telescope unit in sequence. The invention can obtain the phase gradient distribution in two orthogonal directions of the sample to be tested by generating the illumination light of the stripe structure by the digital beam modulation unit, and realize the quantitative measurement of the phase distribution of the sample to be tested. |