公开(公告)号：US09800847B2

公开(公告)日：2017-10-24

申请号：US14812185

申请日：2015-07-29

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hideyuki Kurosaki

IPC: G03B21/20 ,  H04N9/31 ,  G02B27/30

CPC classification number: H04N9/3152 ,  G02B19/0014 ,  G02B19/0052 ,  G02B27/0911 ,  G02B27/0927 ,  G02B27/0966 ,  G02B27/30 ,  G03B21/204 ,  G03B21/208 ,  H04N9/3111 ,  H04N9/3161 ,  H04N9/3164

Abstract: A light source unit includes a laser diode and a collimator lens having an entrance portion and an exit portion, with light emitted from the laser diode being incident light which is caused to enter the collimator lens. The laser diode is disposed so that a direction of a major axis of an elliptic cross section which intersects an axis of the incident light at right angles is defined as a direction of a first axis, and the entrance portion includes an elongated recess portion which is formed into a recess shape which is curved inwards towards a direction in which the incident light exits. In addition, a recessed edge of the elongated recess portion in a cross section, which intersects the first axis at right angles, is formed into an arc shape, and the incident light which enters the entrance portion is caused to exit from the exit portion.

公开(公告)号：US09513539B2

公开(公告)日：2016-12-06

申请号：US14633329

申请日：2015-02-27

Applicant: CASIO COMPUTER CO. LTD.

Inventor： Hideyuki Kurosaki

IPC: G03B21/20 ,  G03B21/14 ,  F21V9/16 ,  F21V13/02 ,  G02B27/09 ,  F21Y101/00

CPC classification number: G03B21/204 ,  F21K9/64 ,  F21V9/30 ,  F21V13/02 ,  F21Y2101/00 ,  F21Y2115/10 ,  F21Y2115/30 ,  G02B27/0961 ,  G03B21/14 ,  G03B21/2033 ,  G03B21/208

Abstract: To provide a projector which enables a stable projection for a long period of time, there is provided a projector comprising a light source unit, a display device, a projection-side optical system, a light guiding optical system and a projector control unit, wherein the light source unit comprises an excitation light source unit comprising an excitation light source and a microlens array and a rectangular green luminescent plate which receives light emitted from the excitation light source to emit light in a green wavelength band, and the microlens array is disposed between the excitation light source and the luminescent plate and has a plurality of micro convex lenses which each have a similar shape to the shape of the luminescent material layer are arranged into a matrix, so as to convert light from excitation light source into a plurality of pencils of light to shine them onto the luminescent plate.

公开(公告)号：US09194560B2

公开(公告)日：2015-11-24

申请号：US13797598

申请日：2013-03-12

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hideyuki Kurosaki ,  Hideki Nakamura

IPC: G03B21/00 ,  F21V13/08 ,  G03B21/20 ,  G03B33/08

CPC classification number: F21V13/08 ,  G03B21/2013 ,  G03B21/204 ,  G03B33/08

Abstract: A light source device includes first to third light sources, a fluorescent material, and a dichroic mirror. The dichroic mirror is constituted so that excitation light emitted from the first light source is transmitted through the dichroic mirror and applied to the fluorescent material, light of a first wavelength bandwidth emitted from the second light source is transmitted through the dichroic mirror and emitted in a predetermined emitting direction, generated light emitted from the fluorescent material is reflected by the dichroic mirror and emitted in the predetermined emitting direction, and at least a part of light of a second wavelength bandwidth from the third light source passes the outside of the dichroic mirror without entering the dichroic mirror, and is emitted in the predetermined emitting direction.

Abstract translation: 光源装置包括第一至第三光源，荧光材料和二向色镜。 分色镜被构成为使得从第一光源发射的激发光透过分色镜并施加到荧光材料上，从第二光源发出的第一波长带宽的光透过分色镜并发射到 预定的发射方向，从荧光材料发射的产生的光被分色镜反射并以预定的发射方向发射，并且来自第三光源的第二波长带宽的至少一部分光通过分色镜的外部，而没有 进入分色镜，并以预定的发射方向发射。

公开(公告)号：US08723142B2

公开(公告)日：2014-05-13

申请号：US13727469

申请日：2012-12-26

Applicant: Casio Computer Co., Ltd.

Inventor： Hideyuki Kurosaki ,  Hideaki Inoue

IPC: G01J1/58 ,  G03B21/28

CPC classification number: G03B21/204 ,  F21V9/30 ,  G03B21/28

Abstract: A light source device includes: a light emitting plate that has a plurality of segment regions including a transmissive portion that transmits light and a reflective portion on which a fluorescent substance layer; a light source that irradiates the fluorescent substance layer of the light emitting plate with the excitation light; a dichroic mirror that is disposed between the light source and the light emitting plate to transmit the excitation light and reflect fluorescent light from fluorescent substances of the fluorescent substance layer; and an optical device that condenses the excitation light transmitted by the transmissive portion of the light emitting plate and the fluorescent light reflected by the dichroic mirror on a single optical path to form a condensed light and radiate the condensed light toward the same direction.

Abstract translation: 光源装置包括：发光板，其具有包括透射光的透射部分和具有荧光物质层的反射部分的多个分割区域; 用激发光照射发光板的荧光物质层的光源; 分光镜，设置在光源和发光板之间，以透射激发光并反射来自荧光物质层的荧光物质的荧光; 以及光学装置，其将由发光板的透射部分透射的激发光和由分色镜反射的荧光聚光在单个光路上，以形成聚光，并朝向相同方向辐射聚光。