公开(公告)号：US20180120483A1

公开(公告)日：2018-05-03

申请号：US15572982

申请日：2016-05-12

申请人： Tsutomu SHIMURA ,  Egarim Corporation Japan ,  Okamoto Glass Co., Ltd.

发明人： Tsutomu Shimura ,  Hideyoshi Horimai ,  Toshihiro Kasezawa ,  Hiroshi Tabuchi

IPC分类号： G02B5/18 ,  G02B5/32 ,  H01L31/054 ,  E06B3/67 ,  G02B27/14

CPC分类号： G02B5/18 ,  E06B3/6715 ,  F24S10/40 ,  F24S20/63 ,  G02B5/32 ,  G02B19/0019 ,  G02B19/0076 ,  G02B27/144 ,  H01L31/054 ,  Y02E10/52

摘要： To provide a photovoltaic device and a light condensing device having a high condensing rate which can be manufactured easily and at low cost. This light condensing device is provided with: a light-guiding subtract for causing light to propagate between a rear-side surface and a front-side surface for receiving light from a light source; a reflective layer for light guiding, in which a reflection-type hologram is formed for reflecting light incident at a first incidence angle less than the critical angle of the light-guiding substrate at a reflection angle greater than the critical angle, the reflective layer being provided to the rear-side surface; and an emission window for causing light incident at a second incidence angle equal to or greater than the critical angle to be emitted from the light-guiding substrate, the emission window being provided to the front-side surface and/or the rear-side surface.

公开(公告)号：US20190288145A1

公开(公告)日：2019-09-19

申请号：US16428556

申请日：2019-05-31

申请人： Holomedia, LLC ,  Egarim Corporation Japan

发明人： Hideyoshi Horimai ,  Toshihiro Kasezawa ,  Chikara Kasezawa

IPC分类号： H01L31/054 ,  F24S10/40 ,  G02B5/08 ,  F24S20/63 ,  E06B9/24 ,  G02B5/26 ,  G02B5/28 ,  G02B27/14 ,  E06B3/67 ,  E06B7/28 ,  G02B19/00 ,  G02B5/32

摘要： A light-concentrating mechanism comprises an angle-selective reflection means that reflects light having an incident angle of at least a first threshold angle and transmits at least some of the light having an incident angle smaller than the first threshold angle, and an angle-increase reflection means that reflects incident light at an angle greater than the incident angle of said light, the two means being arranged to have a gap therebetween. The angle-increase reflection means reflects, at an angle equal to or greater than the first threshold angle, at least some of the light transmitted by the angle-selective reflection means, and the angle-selective reflection means reflects the light reflected by the angle-increase reflection means and has an angle that is equal to or greater than the first threshold angle. Light is propagated and concentrated by the gap between the angle-selective reflection means and the angle-increase reflection means.

公开(公告)号：US10355156B2

公开(公告)日：2019-07-16

申请号：US14762312

申请日：2014-01-20

申请人： Holomedia, LLC ,  Egarim Corporation Japan

发明人： Hideyoshi Horimai ,  Toshihiro Kasezawa ,  Chikara Kasezawa

IPC分类号： G02B5/08 ,  G02B5/26 ,  G02B5/28 ,  G02B5/32 ,  G02B27/14 ,  H01L31/054 ,  E06B3/67 ,  E06B7/28 ,  E06B9/24 ,  F24S10/40 ,  F24S20/63 ,  G02B19/00

摘要： [Problem] To provide a light-concentrating mechanism that is suitable for photovoltaic power generation. [Solution] This light-concentrating mechanism comprises an angle selective reflection means that reflects light having an incident angle of at least a first threshold angle and transmits at least some of the light having an incident angle smaller than the first threshold angle, and an angle-increase reflection means that reflects incident light at an angle greater than the incident angle of said light, the two means being arranged so as to have a gap therebetween. The angle-increase reflection means reflects, at an angle that is equal to or greater than the first threshold angle, at least some of the light that has been transmitted by the angle-selective reflection means, and the angle-selective reflection means reflects the light that has been reflected by the angle-increase reflection means and has an angle that is equal to or greater than the first threshold angle, and light is propagated and concentrated by the gap between the angle-selective reflection means and the angle-increase reflection means.

公开(公告)号：US20210088800A1

公开(公告)日：2021-03-25

申请号：US16635293

申请日：2018-07-25

申请人： Egarim Corporation Japan

发明人： Hideyoshi Horimai ,  Toshihiro Kasezawa ,  Shinobu Yamamoto

IPC分类号： G02B27/28

摘要： A polarization beam splitter is disclosed having reduced size and weight relative to the prior art. The disclosed polarization beam splitter has a translucent substrate and a hologram layer provided on a front surface of the substrate. The polarization beam splitter is capable of separating S-polarized light from light incident on the hologram layer via the substrate, wherein the substrate has a back surface facing the front surface on which the hologram layer is provided, and a side surface connecting the front surface and the back surface. The hologram layer has a hologram for diffracting circularly polarized light incident on the hologram layer from outside the substrate via either the back surface or a portion of the side surface to generate S-polarized light having an extinction ratio of 50:1 or greater toward the other of the back surface or the portion of the side surface.