公开(公告)号：US20240129441A1

公开(公告)日：2024-04-18

申请号：US18394336

申请日：2023-12-22

Applicant: MAXELL, LTD.

Inventor： Takuya Shimizu ,  Shinji Onodera

IPC: H04N9/31 ,  G03B21/20 ,  G06F3/0482

CPC classification number: H04N9/3147 ,  G03B21/2006 ,  G03B21/206 ,  G06F3/0482 ,  H04N9/3155 ,  H04N9/3182

Abstract: A projection video display apparatus includes a video input unit, a light source, a display element, a projection optical system, and a variable light adjusting function which changes the amount of light incident on the display element. Display modes using the variable light adjusting function are prepared, and one display mode of the display modes can be selected from a menu screen. Further, the display modes of the display video using the variable light adjusting function includes: a first display mode where the input video is displayed while changing a light adjusting amount in accordance with light adjusting control information, which is input from external equipment and is capable of controlling the variable light adjusting function in unit of frame of a projected video; and a second display mode where the input video is displayed while changing a light adjusting amount in accordance with the input video.

公开(公告)号：US11899170B2

公开(公告)日：2024-02-13

申请号：US16918265

申请日：2020-07-01

Applicant: Young Optics Inc.

Inventor： Yu-Chen Lin ,  Chun-Tung Wu

IPC: G02B13/00 ,  G02B9/34 ,  G02B1/04 ,  G03B21/20 ,  G02B27/42

CPC classification number: G02B13/004 ,  G02B1/041 ,  G02B9/34 ,  G02B13/0055 ,  G02B27/4205 ,  G03B21/2006

Abstract: An optical lens includes a first lens with a positive refractive power, a second lens having a diffractive optical surface and a negative refractive power, and a third lens with a positive refractive power arranged in order from a magnified side to a minified side. A total number of lenses with refractive powers in the optical lens is smaller than six, and the first lens, the second lens and the third lens are made of plastic.

公开(公告)号：US20230179747A1

公开(公告)日：2023-06-08

申请号：US18063615

申请日：2022-12-08

Applicant: VALID MANUFACTURING LTD.

Inventor： Richard Allan GOSTLIN ,  Derek Lee SANDQUIST ,  Jack William FENKHUBER

IPC: H04N9/31 ,  G02B1/14 ,  G02B1/04 ,  G03B21/20 ,  B60K37/02

CPC classification number: H04N9/31 ,  G02B1/14 ,  G02B1/041 ,  G03B21/2006 ,  B60K37/02 ,  B60K2370/1529 ,  B60K2370/334

Abstract: A projector display system comprises a projector and a laminate glass panel comprising first and second glass layers and an assembly of interlayers sandwiched therebetween. The first glass layer is substantially parallel to the second glass layer and the assembly of interlayers includes a reflective polarizer film. The reflective polarizer film of the laminate glass panel has a predetermined range of incident angles defined by an upper limit and a lower limit, wherein when the image is projected onto the laminate glass panel at an incident angle within the predetermined range of incident angles, the reflective polarizer film is adapted to reflect a minimum threshold amount of a first polarized light component of the said image. The projector projects an image onto the laminate glass panel at a selected incident angle that is at least 30° less than the lower limit of the said predetermined range of incident angles.

公开(公告)号：US20230176351A1

公开(公告)日：2023-06-08

申请号：US18060041

申请日：2022-11-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： TAKAYUKI YAMAGUCHI

IPC: G02B19/00 ,  G03B21/28 ,  G03B21/20 ,  G03F7/20

CPC classification number: G02B19/0028 ,  G03B21/28 ,  G03B21/2006 ,  G03F7/20

Abstract: A light source apparatus configured to emit light includes a condenser unit configured to reflect light from a light source and to condense the light on a condensing point, a light shielding unit disposed on an optical path of the light from the condenser unit, and a reflector unit disposed between the condenser unit and the light shielding unit and configured to reflect the light from the condenser unit. The reflector unit is disposed so that reflected light is condensed by the condenser unit toward the condensing point.

公开(公告)号：US20190235370A1

公开(公告)日：2019-08-01

申请号：US16256989

申请日：2019-01-24

Applicant: Coretronic Corporation

Inventor： Yi-Hsuang Weng

IPC: G03B21/20 ,  H01L33/50 ,  G02B27/10 ,  G02B27/09 ,  G02B5/20

CPC classification number: G03B21/2006 ,  G02B5/20 ,  G02B27/0955 ,  G02B27/1006 ,  G03B21/2066 ,  H01L33/50

Abstract: An illumination system includes an excitation light source and a wavelength conversion element. The excitation light source provides an excitation beam. The wavelength conversion element has a wavelength conversion region, a reflective region, and a light transmissive region. The wavelength conversion region and the reflective region form an annular region. The light transmissive region is surrounded by the annular region, wherein the excitation beam passes through the light transmissive region of the wavelength conversion element. The illumination system of the disclosure is small in size and achieves favorable optical efficiency. A projection device including the illumination system is also provided.

公开(公告)号：US20160065919A1

公开(公告)日：2016-03-03

申请号：US14838466

申请日：2015-08-28

Applicant: NICHIA CORPORATION

Inventor： Tadaaki MIYATA ,  Hidenori MATSUO

IPC: H04N9/31 ,  G02B26/00 ,  G03B21/16 ,  G03B21/20

CPC classification number: H04N9/3111 ,  G02B26/008 ,  G02B27/30 ,  G03B21/16 ,  G03B21/2006 ,  G03B21/2013 ,  G03B21/204 ,  G03B21/2046 ,  H04N9/3158

Abstract: A light source apparatus and a Projector including the light source apparatus are provided. The light source apparatus comprises: a plurality of light sources each including a laser diode and a collimating lens, said collimating lens making a light emitted from said laser diode into an approximately collimated beam, a plurality of housings in which said plurality of light sources are placed so that a light is emitted from each of said light source advances approximately in parallel in the same direction, a condenser lens which condenses lights which is emitted from said plurality of housings to a phosphor, a phosphor wheel having said phosphor, said phosphor wheel transmitting the lights which is emitted from said condenser lens, wherein incident angles of the lights emitted from said housings to an optical axis of said condenser lens are made different by varying mount angles of said housings to a supporting member.

Abstract translation: 提供了一种光源装置和包括该光源装置的投影仪。 光源装置包括：多个光源，每个光源包括激光二极管和准直透镜，所述准直透镜将从所述激光二极管发射的光制成近似准直的光束;多个外壳，其中所述多个光源为 放置成使得从所述光源中的每一个发射的光大致平行于同一方向前进;聚光透镜，其将从所述多个壳体发射的光聚光到荧光体;具有所述荧光体的荧光轮，所述荧光轮 透射从所述聚光透镜发射的光，其中通过将所述壳体的安装角度改变为支撑构件，使从所述壳体发射到所述聚光透镜的光轴的光的入射角度不同。

公开(公告)号：US20150016085A1

公开(公告)日：2015-01-15

申请号：US14370886

申请日：2012-10-03

Applicant: NEC Corporation

Inventor： Masanao Natsumeda ,  Masao Imai ,  Shin Tominaga ,  Naofumi Suzuki ,  Mizuho Tomiyama ,  Yuji Ohno

IPC: G02B5/00 ,  F21V9/14

CPC classification number: G02B5/008 ,  F21V9/14 ,  G02B5/30 ,  G02B27/102 ,  G02B27/141 ,  G03B21/2006 ,  G03B21/2073 ,  H01L33/0004

Abstract: Disclosed are an optical device, an optical element, and an image display device that can achieve an improved absorption efficiency of excitation light. The optical device includes: a light-emitting element; a carrier generation layer on which light from the light-emitting element is incident and in which carriers are generated; a plasmon excitation layer that excites a plasmon, stacked on the upper side of the carrier generation layer and has a plasma frequency higher than a frequency of light generated when the carrier generation layer is excited by the light from the light-emitting element; and an exit layer that converts light or a surface plasmon generated on a surface of the plasmon excitation layer into light having a predetermined exit angle and from which the light having the predetermined exit angle exits. The optical device further includes a polarization conversion layer on the lower side of the carrier generation layer.

Abstract translation: 公开了能够实现提高的激发光的吸收效率的光学装置，光学元件和图像显示装置。 光学装置包括：发光元件; 来自发光元件的光入射并且其中产生载流子的载流子产生层; 激发等离子体激元层，其堆叠在载体产生层的上侧，并且具有比当载流子产生层被来自发光元件的光激发时产生的光的频率高的等离子体频率; 以及将在等离子激元激发层的表面上产生的光或表面等离子体激元转换成具有预定出射角的光的出射层，并且具有预定出射角的光离开该出射层。 该光学器件还包括位于载体产生层下侧的偏振转换层。

公开(公告)号：US08801189B2

公开(公告)日：2014-08-12

申请号：US13391702

申请日：2011-06-20

Applicant: Tetsuro Mizushima ,  Tatsuo Itoh ,  Kenichi Kasazumi ,  Kenji Nakayama

Inventor： Tetsuro Mizushima ,  Tatsuo Itoh ,  Kenichi Kasazumi ,  Kenji Nakayama

IPC: G03B21/14 ,  G03B21/20 ,  H04N9/31 ,  G02B13/00 ,  G02B27/48 ,  G02B27/09 ,  G02B27/14

CPC classification number: G02B13/007 ,  G02B27/0933 ,  G02B27/141 ,  G02B27/48 ,  G03B21/14 ,  G03B21/2006 ,  G03B21/2033 ,  G03B21/208 ,  H04N9/3161 ,  H04N9/3164

Abstract: There is provided a laser projector, including: a laser source section for emitting laser beams; a spatial light modulator which modulates the laser beams to generate image light; a projector lens from which the image light is emitted; a beam shaper which shapes the laser beams into a shape of the spatial light modulator; and a pupil uniformizer which makes a light intensity distribution uniform at an exit pupil of the projector lens, wherein the pupil uniformizer is situated between the laser source section and the beam shaper.

Abstract translation: 提供了一种激光投影仪，包括：用于发射激光束的激光源部分; 调制激光束以产生图像光的空间光调制器; 投射透镜，其中发射图像光; 光束整形器，其将激光束成形为空间光调制器的形状; 以及在投影透镜的出射光瞳上使光强分布均匀的瞳孔均匀器，其中瞳孔均匀器位于激光源部分和光束整形器之间。

公开(公告)号：US20130271733A1

公开(公告)日：2013-10-17

申请号：US13859731

申请日：2013-04-10

Applicant: Kuo-Ching CHIANG

Inventor： Kuo-Ching CHIANG

IPC: G03B21/00

CPC classification number: G03B21/008 ,  G03B21/2006 ,  G03B33/08 ,  H04N9/3114 ,  H04N9/3164

Abstract: A triple white light sources and triple filters projector includes a light guiding device; a triple filters formed with a red, green and blue filters set three sides of the light guiding device; a triple white light sources set said three sides of the light guiding device to generate white light beams with sequence, wherein the triple filters located between said triple white light sources and the three sides of the light guiding device, and the white light beams become red, green and blue after passing the triple white light sources; a digital mirror device panel having a plurality of mirror elements each being controlled so as to reflect light fed from said triple white light sources, an image signal being fed into the digital mirror device panel; and lens positioned in the reflected light path from the digital mirror device panel to project image.

Abstract translation: 三重白光光源和三重滤光片投影机包括导光装置; 形成有红色，绿色和蓝色滤色器的三重滤光器设置在导光装置的三侧; 三重白光源设置在导光装置的三个侧面以产生具有顺序的白光束，其中位于所述三白色光源和导光装置三侧之间的三重滤光器和白光束变成红色 ，绿色和蓝色通过三重白光源; 数字镜装置面板具有多个反射镜元件，每个镜像元件被控制以反射从所述三重白色光源馈送的光，将图像信号馈送到数字镜装置面板中; 以及位于从数字镜装置面板反射的光路中投影图像的透镜。

公开(公告)号：US20120140186A1

公开(公告)日：2012-06-07

申请号：US13389584

申请日：2010-08-24

Applicant: Muneharu Kuwata

Inventor： Muneharu Kuwata

IPC: G03B21/14 ,  F21V13/04 ,  F21V5/00

CPC classification number: G03B21/2093 ,  G03B21/2006 ,  G03B33/12 ,  H04N9/3111 ,  H04N9/317

Abstract: A light collecting optical system includes surface-emitting light sources, collimate lenses, and a condenser lens. Light emitting surfaces of the surface-emitting light sources have a rectangular shape of the same size as each other, and have a similar figure to an incident surface of an integrator rod, the collimate lenses are disposed so that the optical distances from the collimate lenses to the condenser lens are approximately the same, and the surface-emitting light sources are disposed so that the optical distances Lr, Lg and Lb from the light emitting surfaces to the collimate lenses satisfy Lb

Abstract translation: 集光光学系统包括表面发射光源，准直透镜和聚光透镜。 表面发射光源的发光表面具有彼此相同尺寸的矩形形状，并且具有与积分杆的入射表面相似的图形，准直透镜被设置成使得与准直透镜的光学距离 聚光透镜大致相同，并且表面发射光源被设置为使得从发光面到准直透镜的光学距离Lr，Lg和Lb满足Lb