公开(公告)号：US20230258951A1

公开(公告)日：2023-08-17

申请号：US18014500

申请日：2021-06-16

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tsubasa WATANABE ,  Hiroto SAKAI ,  Yasushi OHBAYASHI

IPC: G02B27/10 ,  G02B27/00 ,  G02B5/28 ,  G02B27/09

CPC classification number: G02B27/1026 ,  G02B27/0012 ,  G02B5/28 ,  G02B27/095

Abstract: An optical apparatus includes an optical system for outputting parallel light, and an angle filter disposed on an optical path of the parallel light output from the optical system. The angle filter includes a dielectric multilayer film in which dielectric layers having a first refractive index n1 and dielectric layers having a second refractive index n2 lower than the first refractive index n1 are alternately stacked.

公开(公告)号：US20210191165A1

公开(公告)日：2021-06-24

申请号：US16769339

申请日：2017-12-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kuniharu TAKIZAWA ,  Hiroshi TANAKA ,  Haruyoshi TOYODA ,  Yasushi OHBAYASHI ,  Hiroto SAKAI ,  Tsubasa WATANABE

IPC: G02F1/03

Abstract: A light modulator includes a perovskite-type electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a first optical element being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a second optical element being disposed on the rear surface of the electro-optic crystal and having a second electrode through which the input light is transmitted, and a drive circuit applying an electric field between the first electrode and the second electrode.

公开(公告)号：US20200326564A1

公开(公告)日：2020-10-15

申请号：US16769327

申请日：2017-12-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kuniharu TAKIZAWA ,  Hiroshi TANAKA ,  Haruyoshi TOYODA ,  Yasushi OHBAYASHI ,  Hiroto SAKAI ,  Tsubasa WATANABE

IPC: G02F1/03

Abstract: A reflective spatial light modulator includes an electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a light input/output unit being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a light reflection unit including a substrate including a plurality of second electrodes and being disposed on the rear surface side of the electro-optic crystal, and a drive circuit applying an electric field between the first electrode and the plurality of second electrodes. The light input/output unit includes a first charge injection curbing layer formed on the input surface, and the light reflection unit includes a second charge injection curbing layer formed on the rear surface.

公开(公告)号：US20230280515A1

公开(公告)日：2023-09-07

申请号：US18015346

申请日：2021-06-16

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tsubasa WATANABE ,  Hiroto SAKAI ,  Yasushi OHBAYASHI

IPC: G02B5/28

CPC classification number: G02B5/285 ,  G02B1/11

Abstract: An optical apparatus includes an angle filter disposed on an optical path in the middle of focusing or in the middle of divergence by a focusing optical element. The angle filter includes a dielectric multilayer film in which dielectric layers having a first refractive index and dielectric layers having a second refractive index lower than the first refractive index are alternately stacked.

公开(公告)号：US20200292856A1

公开(公告)日：2020-09-17

申请号：US16769321

申请日：2017-12-05

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kuniharu TAKIZAWA ,  Hiroshi TANAKA ,  Haruyoshi TOYODA ,  Yasushi OHBAYASHI ,  Hiroto SAKAI ,  Tsubasa WATANABE

IPC: G02F1/03 ,  G01N21/64

Abstract: A reflective spatial light modulator includes an electro-optic crystal having an input surface to which input light is input and a rear surface opposing the input surface, a light input/output unit being disposed on the input surface of the electro-optic crystal and having a first electrode through which the input light is transmitted, a light reflection unit including a substrate including a plurality of second electrodes and an adhesive layer for fixing the substrate to the rear surface and being disposed on the rear surface of the electro-optic crystal, and a drive circuit applying an electric field between the first electrode and the plurality of second electrodes.