公开(公告)号：US09970922B2

公开(公告)日：2018-05-15

申请号：US14924234

申请日：2015-10-27

Applicant: OLYMPUS CORPORATION

Inventor： Atsuhiro Tsuchiya ,  Hiroyuki Okahira ,  Koichiro Izumi

IPC: G01N33/483 ,  G01J1/02 ,  G01J1/04

CPC classification number: G01N33/4833 ,  G01J1/0271 ,  G01J1/044

Abstract: With the object of preventing deterioration of or damage to a photodetector caused by excessive light by more reliably preventing the excessive light from entering the photodetector, a microscope of the present invention is provided with a high-sensitivity detector, such as an HPD, a GaAsP, an EM-CCD or the like, that detects observation light coming from a specimen, a box-shaped casing that has an opening that allows contained items to be placed therein and removed therefrom and that covers the high-sensitivity detector, a door that can close off the opening of the casing, a switch that restricts light detection by the high-sensitivity detector by turning on and off a drive voltage to be applied to the high-sensitivity detector, and an opening restricting mechanism that allows the opening of the casing in the closed state imposed by the door to be opened only when the light detection by the high-sensitivity detector is restricted by the switch.

公开(公告)号：US09915814B2

公开(公告)日：2018-03-13

申请号：US15060585

申请日：2016-03-03

Applicant: OLYMPUS CORPORATION

Inventor： Makio Ueno ,  Masahito Dohi ,  Atsuhiro Tsuchiya ,  Hiroyasu Hebiishi

IPC: G02B21/00 ,  G02B21/36 ,  G02B27/14 ,  G02B27/00 ,  G01N21/64 ,  A61B5/00

CPC classification number: G02B21/0076 ,  A61B5/0059 ,  A61B5/0062 ,  G01N21/6402 ,  G01N21/6458 ,  G01N21/6486 ,  G02B21/0032 ,  G02B21/0084 ,  G02B21/361 ,  G02B27/0025 ,  G02B27/141

Abstract: A fluorescence observation unit includes a scanner that scans ultrashort pulsed laser light, a pupil projection lens that focuses the scanned ultrashort pulsed laser light, an image-forming lens that converts the focused ultrashort pulsed laser light to substantially collimated light and causes the ultrashort pulsed laser light to be incident on the objective lens, and a dichroic mirror that splits off, from the optic path of the ultrashort pulsed laser light, fluorescence generated in a sample due to irradiation with the ultrashort pulsed laser light and collected by the objective lens. The image-forming lens includes a first optical system having positive refractive power, and a second optical system having negative refractive power and disposed at a position closer to the scanner than the first optical system is. The dichroic mirror is disposed between the first optical system and the second optical system.