位い相そう差さ

noun

phase contrast

Technical term in optics and microscopy; refers to a technique that converts phase shifts in light passing through a transparent specimen to brightness changes in the image.

• 位い相そう差さ顕けん微び鏡きょうは透とう明めいな試し料りょうの観かん察さつに使つかわれる。

  A phase contrast microscope is used to observe transparent specimens.