公开(公告)号：US20210088766A1

公开(公告)日：2021-03-25

申请号：US16971753

申请日：2018-12-26

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yuu TAKIGUCHI ,  Rumika TANAKA ,  Hisayoshi TAKAMOTO

IPC: G02B21/00 ,  G01N21/63

Abstract: A light sheet microscope includes an irradiation optical system, a detection optical system, and a photodetector. The irradiation optical system includes a wavelength sweep light source which outputs light of which a wavelength changes with time as excitation light, a spectroscopic element on which the excitation light output from the wavelength sweep light source is incident and which emits the excitation light at an emission angle corresponding to a wavelength of the excitation light, a relay optical system which includes a cylindrical lens on which the excitation light emitted from the spectroscopic element is incident at an incident angle corresponding to the emission angle, and a first objective lens which condenses the excitation light guided by the relay optical system and irradiates the sample with the excitation light having a sheet shape.

公开(公告)号：US20240305907A1

公开(公告)日：2024-09-12

申请号：US18272611

申请日：2022-01-13

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Keisuke UCHIDA ,  Munenori TAKUMI ,  Hisayoshi TAKAMOTO ,  Naoaki KATO ,  Katsuhiro NAKAMOTO ,  Mitsuhito MASE

IPC: H04N25/705 ,  G01S7/4863 ,  G01S7/4865 ,  H04N25/771

CPC classification number: H04N25/705 ,  G01S7/4863 ,  G01S7/4865 ,  H04N25/771

Abstract: A distance image acquisition apparatus includes a light source, an irradiation optical system, an imaging optical system, an imaging element, and a processing unit. The imaging element receives a light pulse output from the light source, reflected by an object, and passed through the imaging optical system on a light receiving surface. Each of a plurality of pixels on the light receiving surface includes a photodiode for generating charges by receiving light, and a charge accumulation portion for accumulating the charges generated in the photodiode. The processing unit commonly applies a control pattern to the plurality of pixels. The control pattern indicates a period in which the charges generated in the photodiode are accumulated in the charge accumulation portion. The processing unit acquires a distance image of the object based on an amount of charges generated in the photodiode and accumulated in the charge accumulation portion.