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.

公开(公告)号：US20190302488A1

公开(公告)日：2019-10-03

申请号：US16307527

申请日：2017-06-05

Applicant: HAMAMATSU PHOTONICS K.K.

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

IPC: G02F1/03 ,  G02F1/33 ,  G09G3/36 ,  G02B26/08

Abstract: A reflective spatial light modulator includes a perovskite-type electro-optic crystal having a relative permittivity of 1,000 or higher, a light input and output unit disposed on an input surface of the electro-optic crystal and including a first electrode through which input light is transmitted, a light reflecting unit including a plurality of second electrodes disposed on a rear surface of the electro-optic crystal and reflects the input light toward the light input and output unit, a drive circuit including a plurality of drive electrodes respectively corresponding to the plurality of second electrodes and for applying an electric field to a part between the first electrode and the second electrode by inputting an electrical signal to each of the plurality of drive electrodes, and a plurality of bumps which are disposed such that the plurality of second electrodes and the plurality of drive electrodes are electrically connected to each other.