Patent ID: 7285787
Filing Date: 2007-10-23
Classification: G01N,G02B

Abstract:
1. An epi-illumination microscope comprising: a light source that emits light to illuminate a sample; a first wavelength selection member that selectively transmits the light from the light source; a light splitter that reflects the light from the first wavelength selection member to epi-illuminate the sample and transmits the light emitted from the sample, the light splitter comprising a transparent member and a dichroic mirror coat disposed on the transparent member, the transparent member including a first surface and a second surface, the dichroic mirror coat comprising a first dichroic mirror coat disposed on the first surface of the transparent member and having a first transmittance characteristic, and a second dichroic mirror coat disposed on the second surface of the transparent member and having a second transmittance characteristic, a reflection band of the second transmittance characteristic of the second dichroic mirror is shifted from and partially overlaps with a reflection band of the first transmittance characteristic; and a second wavelength selection member that selectively transmits the light transmitted through the light splitter.