公开(公告)号：EP4155818B1

公开(公告)日：2024-05-01

申请号：EP22201451.6

申请日：2017-11-03

IPC分类号： G03B21/20 ,  G02B26/04 ,  G03B33/12 ,  H04N9/31

CPC分类号： G02B26/04 ,  G03B21/20 ,  G03B21/2073 ,  H04N9/3126 ,  H04N9/3167 ,  G03B21/2053 ,  G03B21/2066 ,  G03B21/208 ,  G03B33/12

公开(公告)号：EP3382451A1

公开(公告)日：2018-10-03

申请号：EP18171153.2

申请日：2012-08-10

申请人： Appotronics Corporation Limited

发明人： Hu, Fei ,  Li, Yi ,  Yang, Yi

IPC分类号： G03B21/20 ,  G03B21/00 ,  G03B33/12 ,  G02B27/10

CPC分类号： G03B21/204 ,  G02B27/1006 ,  G03B21/208 ,  G03B33/12

摘要： A light emitting device includes: an excitation light emitting source (71) for generating excitation light; a wavelength conversion device (72) comprising a wavelength conversion layer (722), the wavelength conversion layer (722) converting at least a part of the excitation light into converted light, and the converted light being light with a wide spectrum, or the converted light being mixed with excitation light not converted by the wavelength conversion layer (722) to form light with a wide spectrum; a driving device (73) for enabling the excitation light to move relative to the wavelength conversion layer; and a light splitting device (62) for splitting the light with the wide spectrum into at least two kinds of monochromatic light propagating along different paths. Further provided is a projection system comprising the light emitting device.

公开(公告)号：EP3241072A4

公开(公告)日：2018-08-01

申请号：EP15876022

申请日：2015-12-21

申请人： DOLBY LABORATORIES LICENSING CORP

发明人： DEWALD DUANE SCOTT ,  WAINWRIGHT NATHAN ,  GORNY DOUGLAS J ,  RICHARDS MARTIN J

IPC分类号： G03B21/14 ,  G02B5/04 ,  G03B21/00 ,  G03B21/20 ,  G03B21/28 ,  G03B33/12 ,  H04N9/31

CPC分类号： G03B21/28 ,  G02B1/11 ,  G02B5/04 ,  G02B27/0994 ,  G02B27/1033 ,  G03B21/008 ,  G03B21/2013 ,  G03B21/2066 ,  G03B33/12 ,  H04N9/3126

摘要： Prism assemblies for projector display systems disclosed receive inputs from discrete color channels (e.g., red, green and blue channels. In one embodiment, “off state” light from the red, green, and blue DLP modulation may be reflected away from on-state light paths within the prism, tending to avoid uncontrolled scatter. In other embodiments, by keeping the colors separate for much of the prism path length, power levels may be significantly reduced at typical failure points. Light efficiency may be increased significantly when using discrete light sources like LEDs and lasers by removal of the additional red, green, and blue separation and re-combination losses.

公开(公告)号：EP3064995B1

公开(公告)日：2018-07-25

申请号：EP14856917.1

申请日：2014-06-11

申请人： JVC KENWOOD Corporation

发明人： SEGAWA, Masaru

IPC分类号： G02B17/08 ,  G02B5/02 ,  B60K35/00 ,  G02B25/02 ,  G03B21/20 ,  G03B21/28 ,  G03B21/62 ,  G03B33/12 ,  G09F9/00 ,  G02B27/01 ,  G03B21/00

CPC分类号： G02B27/0101 ,  B60K35/00 ,  B60K2350/1072 ,  B60K2350/2052 ,  G02B5/0226 ,  G02B5/0278 ,  G02B5/0289 ,  G02B17/0896 ,  G02B2027/0118 ,  G02B2027/0145 ,  G03B21/00 ,  G03B21/2033 ,  G03B21/2073 ,  G03B21/208 ,  G03B21/28 ,  G03B21/62 ,  G03B33/12 ,  G09F9/00

摘要： A transmission type screen 362 includes: two light diffusion plates 363a and 363b that respectively have flat surfaces 368a and 368b and light diffusion surfaces 367a and 367b that face the flat surfaces 368a and 368b, respectively, and diffuse and transmit incident light. The two light diffusion plates 363a and 363b are layered such that the respective light diffusion surfaces 367a and 367b face each other, and the respective light diffusion surfaces 367a and 367b diffuse light that is incident on the light diffusion surfaces 367a and 367b in substantially the same light distribution. The light diffusion plates 363a and 363b respectively include base members 366a and 366b having respective principal surfaces and a plurality of light diffusion members 369a and a plurality of light diffusion members 369b that are provided on the respective principal surfaces, and the light diffusion surfaces 367a and 367b may be formed of the respective principal surfaces on which the light diffusion members 369a and the light diffusion members 369b are provided.

公开(公告)号：EP3229055A4

公开(公告)日：2018-05-30

申请号：EP16742983

申请日：2016-01-27

申请人： CANON KK

发明人： TANAKA JUNICHI

IPC分类号： G02B7/08 ,  G02B13/16 ,  G03B21/00 ,  G03B21/14

CPC分类号： G03B21/142 ,  G02B5/3083 ,  G02B7/08 ,  G02B7/09 ,  G02B13/16 ,  G02B15/20 ,  G02B27/285 ,  G03B5/02 ,  G03B21/00 ,  G03B21/14 ,  G03B21/53 ,  G03B33/12 ,  G03B2205/0046

摘要： Provided are a lens apparatus and an image projection apparatus, which are capable of automatically adjusting zoom or focus easily in accordance with change in field curvature. The lens apparatus includes: a first optical unit configured to change a field curvature amount of a projection optical system by shifting in an optical axis direction of the projection optical system; a second optical unit configured to change a projection magnification or a focus position of the projection optical system by shifting in the optical axis direction of the projection optical system; a sensor configured to detect a position of the first optical unit; a memory configured to store change information regarding change in projection magnification or focus position of the projection optical system through the shift of the first optical unit; and a control unit configured to control the second optical unit to shift so as to reduce the change in projection magnification or focus position of the projection optical system, which is caused due to the shift of the first optical unit, based on the position of the first optical unit detected by the sensor and the change information stored in the memory.

公开(公告)号：EP2639635A3

公开(公告)日：2017-12-13

申请号：EP13159233.9

申请日：2013-03-14

申请人： CASIO COMPUTER CO., LTD.

发明人： Ogura, Naotsugu ,  Nakamura, Hideki ,  Kurosaki, Hideyuki ,  Nagao, Tomoyuki ,  Sato, Makoto ,  Ogino, Hiroshi

IPC分类号： G03B21/20 ,  H04N9/31 ,  G03B33/12

CPC分类号： F21S2/00 ,  G03B21/14 ,  G03B21/2013 ,  G03B21/204 ,  G03B33/12 ,  H04N9/3111 ,  H04N9/315

摘要： A light source unit 60 includes an excitation light source 70, a plurality of light sources 120, 300 at least one of which emits a light ray in a wavelength band different from that of the excitation light source, a plurality of collimator lenses 125, 305 which make light rays from the light sources into parallel ones, a luminous light emitting device 100 which receives the light ray from the excitation light source to emit a luminous light ray, a microlens array 254 which diffuses the light rays from the light sources to a predetermined range and distributes the luminance thereof uniformly within the predetermined range and a collective lens 255 which collects the light rays from the light sources which are emitted from the microlens array, and the light sources are disposed so that the light rays from the plurality of light sources intersect the light ray from the excitation light source at right angles.

摘要翻译： 光源单元60包括激发光源70，多个光源120,300，多个光源120,300中的至少一个发射与激发光源不同的波段的光线，多个准直透镜125,305 使来自光源的光线成为平行光束的发光装置100，接收来自激励光源的光线而发出发光光线的发光装置100，将来自光源的光线扩散到 并且将其亮度均匀地分布在预定范围内;以及聚集透镜255，其收集来自微透镜阵列发射的光源的光线，并且光源被设置为使得来自多个光源的光线 源以直角与来自激发光源的光线相交。

公开(公告)号：EP3249466A1

公开(公告)日：2017-11-29

申请号：EP16739786.8

申请日：2016-01-20

申请人： Appotronics (China) Corporation

发明人： GUO, Zuqiang ,  WANG, Zeqing

IPC分类号： G03B21/20 ,  F21V13/00

CPC分类号： G03B21/2053 ,  F21V13/00 ,  G02B27/126 ,  G02B27/283 ,  G03B21/20 ,  G03B21/204 ,  G03B33/12 ,  H04N9/3164 ,  H04N9/3167

摘要： A light source system and a projection system, comprising a light source (30); a switching system (40,60) switching light emitted by the light source (30) into at least two light beams (λ1, λ2, λ3, λ4) having a preset proportion in the manner of time division or light intensity division; a color wheel assembly (50, 70) located in a transmission light path of each light beam of the at least two light beams (λ1, λ2, λ3, λ4), with the color wheel assembly (50, 70) generating light having different colors and a preset proportion under the irradiation of each light beam of the at least two light beams (λ1, λ2, λ3, λ4), and light of different colors being able to synthesize a projection image after being modulated by a light modulation system, wherein the switching system (40, 60) can adjust the proportion of the at least two light beams (λ1, λ2, λ3, λ4) according to the parameters of the projection image, so as to adjust the proportion of the light of different colors. Once an offset of a white balance occurs on the projection image, the proportion of light beams of different colors can be adjusted by adjusting the proportion of the switched light beams, so as to achieve the white balance again, so that it is not necessary to replace same with a new color wheel, thereby solving the problems of relatively high costs and relatively large usage difficulty of the projection system.

摘要翻译： 一种光源系统和投影系统，包括光源（30）; 切换系统（40,60），以时分或光强度分割的方式将由光源（30）发射的光转换为具有预设比例的至少两个光束（λ1，λ2，λ3，λ4）; 位于所述至少两个光束（λ1，λ2，λ3，λ4）中的每个光束的透射光路中的色轮组件（50,70），其中所述色轮组件（50,70）产生不同的光 在所述至少两束光束（λ1，λ2，λ3，λ4）中的每一束光束的照射下，颜色和预设比例，并且不同颜色的光线能够在通过光调制系统调制后合成投影图像， 其中切换系统（40,60）可根据投影图像的参数调整至少两个光束（λ1，λ2，λ3，λ4）的比例，以调整不同颜色的光的比例 。 一旦在投影图像上出现白平衡的偏移，就可以通过调整切换光束的比例来调整不同颜色的光束的比例，从而再次实现白平衡，从而不必 将其替换为新的色轮，解决投影系统成本较高，使用难度较大的问题。

公开(公告)号：EP2597505A4

公开(公告)日：2017-08-16

申请号：EP11809426

申请日：2011-07-11

申请人： FUNAI ELECTRIC CO

发明人： NISHIOKA KEN ,  NAGASHIMA KENJI ,  HIRANO ATSUYA ,  CHIKAOKA ATSUHIKO

IPC分类号： H04N9/31 ,  G02B26/10 ,  G02B27/48 ,  G03B21/00 ,  G03B21/14 ,  G09G3/02 ,  G09G3/20 ,  H01S5/042 ,  H01S5/0683

CPC分类号： G02B27/48 ,  G03B21/2033 ,  G03B33/06 ,  G03B33/12 ,  G09G3/02 ,  G09G2360/145 ,  H01S5/005 ,  H01S5/4093 ,  H04N9/3129 ,  H04N9/3167

摘要： To prevent effectively the flickering of an image due to the switching of a polarization direction while reducing speckle noise. A polarization switching unit 6 is provided in an optical path of laser light to a projection surface A and periodically switches a polarization direction of the laser light emitted therefrom between p and S polarization. A laser control unit 13 controls laser light sources 2a to 2c in synchronization with the switching by the polarization switching unit 6 and determines a driving current corresponding to a grayscale to be displayed on the basis of driving current characteristics for P polarization when the polarization direction of the laser light is the P polarization. In addition, the laser control unit 13 determines the driving current corresponding to the grayscale to be displayed on the basis of the driving current characteristics for P polarization when the polarization direction of the laser light is the S polarization.

摘要翻译： 为了有效防止由于偏振方向的切换而造成的图像闪烁，同时减少散斑噪声。 偏振切换单元6被设置在激光的光路中到投影表面A并周期性地切换从其发射的激光的偏振方向在p和S偏振之间。 激光控制单元13与偏振切换单元6的切换同步地控制激光光源2a至2c，并且当偏振方向为偏振方向时，基于用于P偏振的驱动电流特性确定与要显示的灰度相对应的驱动电流 激光是P偏振。 另外，当激光的偏振方向是S偏振时，激光控制单元13基于用于P偏振的驱动电流特性来确定与要显示的灰度相对应的驱动电流。

公开(公告)号：EP3128749A1

公开(公告)日：2017-02-08

申请号：EP15772363.6

申请日：2015-04-01

申请人： Appotronics China Corporation

发明人： LI, Yi ,  YE, Hong ,  WANG, Zeqin

IPC分类号： H04N9/31

CPC分类号： H04N9/3114 ,  G02B26/008 ,  G02B27/141 ,  G03B21/005 ,  G03B21/2013 ,  G03B21/204 ,  G03B21/208 ,  G03B33/12 ,  H04N9/3111 ,  H04N9/3155 ,  H04N9/3158 ,  H04N9/3161 ,  H04N9/3164

摘要： A light source system and projection system, the light source system comprising: a first light source (1) producing first wide spectrum light, a second light source (103) producing second wavelength light, a light splitting and light combining device (2) used to split and combine light, a first spatial light modulator (106), a second spatial light modulator (107), and a control device (108) controlling the first light source (1) and the second light source (103) and modulating the first spatial light modulator (106) and the second spatial light modulator (107). The projection system comprises the light source system. The light source system and projection system have high brightness and wide color gamut, effectively eliminating rainbow effect, and also have a simple structure and low cost.

摘要翻译： 1。一种光源系统和投影系统，所述光源系统包括：产生第一宽谱光的第一光源（1），产生第二波长光的第二光源（103），使用的分光和光合成装置（2） （1）和第二光源（103）的第一空间光调制器（106），第二空间光调制器（107）和控制装置（108），并且将所述第一光源 第一空间光调制器（106）和第二空间光调制器（107）。 投影系统包括光源系统。 光源系统和投影系统亮度高，色域宽，有效消除彩虹效应，结构简单，成本低廉。

公开(公告)号：EP2757785B8

公开(公告)日：2016-09-14

申请号：EP13193727.8

申请日：2013-11-20

申请人： Christie Digital Systems USA, Inc.

发明人： Goerzen, Lawrence

IPC分类号： H04N9/31 ,  G03B33/04 ,  G03B33/12 ,  G09G3/34

CPC分类号： G09G3/3413 ,  G02B26/0833 ,  G03B33/04 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/3126

摘要： A projection system is provided that uses an additional light valve in series with the conventional color splitting-converging prism in order to increase the contrast of a projected image, wherein bit sequences are generated for the additional light valve that do not result in interference with the conventional color light valve bit sequences.