公开(公告)号：US20190182461A1

公开(公告)日：2019-06-13

申请号：US16254111

申请日：2019-01-22

申请人： Pentair Water Pool and Spa, Inc.

发明人： Rakesh Reddy ,  Bruce Johnson ,  Kevin Doyle

IPC分类号： H04N9/31 ,  G06F3/0488 ,  G03B21/608 ,  H04N5/74 ,  G03B21/53 ,  G03B21/14

CPC分类号： H04N9/3179 ,  G03B21/14 ,  G03B21/53 ,  G03B21/56 ,  G03B21/608 ,  G06F3/0488 ,  H04N5/74 ,  H04N9/3182 ,  H04N9/3185 ,  H04N9/3194

摘要： An underwater projection system includes a controller designed to generate a map based on the boundary of a projection area, receive image content, and generate a control output based on the image content and the map. A projector is in communication with the controller to project the control output through the fluid onto the projection area.

公开(公告)号：US10148925B2

公开(公告)日：2018-12-04

申请号：US14622751

申请日：2015-02-13

申请人： SEIKO EPSON CORPORATION

发明人： Yoshitaka Nakashin

IPC分类号： H04N3/22 ,  H04N9/31 ,  H04N5/232 ,  G03B21/53

摘要： A projector includes a projection optical system adapted to project an image on a screen, a lens drive section adapted to perform a focus adjustment in accordance with an operation, a shooting section adapted to shoot the screen, an evaluation value calculation section adapted to calculate an evaluation value used to evaluate contrast of a shot image of the shooting section, and a display control section adapted to make the projection lens project an image, which corresponds to a difference between the evaluation value calculated by the evaluation value calculation section after the focus adjustment and a maximum value of the evaluation values having been calculated by the evaluation value calculation section before the focus adjustment, on the screen in a case in which the lens drive section has performed the focus adjustment in accordance with the operation.

公开(公告)号：US20180284588A1

公开(公告)日：2018-10-04

申请号：US15926724

申请日：2018-03-20

申请人： Coretronic Corporation

发明人： Jian-Jiun Wu ,  Chien-Ming Tsao ,  Liang-Chieh Weng

IPC分类号： G03B21/53 ,  G02B7/36

摘要： An autofocus method for a projector is provided. A projection lens of the projector projects at least projecting one image. The image includes a correction image. The projection lens has a focal length. The autofocus method includes: projecting the correction image; capturing the correction image; capturing a luminance parameter value of the correction image; controlling the focal length of the projection lens according to the luminance parameter value, wherein a process of controlling the focal length of the projection lens according to the luminance parameter value comprises a coarse adjustment phase and a fine adjustment phase, and the luminance parameter value changes with the adjustment of the focal length of the projection lens; and finding a maximum of the luminance parameter value. An autofocus system and a projector having the autofocus system are also provided.

公开(公告)号：US20180063491A1

公开(公告)日：2018-03-01

申请号：US15692004

申请日：2017-08-31

申请人： Kazuaki NAKAMURA

发明人： Kazuaki NAKAMURA

IPC分类号： H04N9/31 ,  G03B21/53 ,  G03B21/14 ,  H04N5/74 ,  G03B17/54 ,  H04N9/28

CPC分类号： H04N9/317 ,  G03B17/54 ,  G03B21/13 ,  G03B21/147 ,  G03B21/53 ,  G03B21/56 ,  H04N5/7416 ,  H04N9/28 ,  H04N9/3105 ,  H04N9/3185

摘要： An image projection apparatus includes processing circuitry that receives, for each surface of a plurality of surfaces in a projection region, an adjustment value to increase or decrease an effective distance from an imaging device to a curved position of the surface. The processing circuitry further determines, for each surface, a curved shape of the surface in accordance with a change of distortion corresponding to the effective distance that was increased or decreased by the received adjustment value. The processing circuitry further calculates, for each surface, correction parameters to correct the distortion of projection images projected onto the surface, in accordance with the determined curved shape of the surface. The processing circuitry further divides an image into a plurality of divided images in accordance with positions and sizes of the each surface of the plurality of surfaces in the projection region.

公开(公告)号：US20170332071A1

公开(公告)日：2017-11-16

申请号：US15665609

申请日：2017-08-01

申请人： Nikolay Ledentsov ,  Vitaly Shchukin

发明人： Nikolay Ledentsov ,  Vitaly Shchukin

IPC分类号： H04N13/04 ,  G03B21/28 ,  G03B35/22 ,  G02B27/22 ,  G06T19/00 ,  H04N13/00 ,  G03B17/54 ,  G03B21/53

CPC分类号： H04N13/363 ,  G02B27/2221 ,  G03B17/54 ,  G03B21/28 ,  G03B21/53 ,  G03B35/22 ,  G06T19/006 ,  H04N13/128 ,  H04N13/322 ,  H04N13/324 ,  H04N13/361 ,  H04N13/395 ,  H04N13/398 ,  H04N2013/0081

摘要： A laser system for generation of three-dimensional (3D) colored images is based on semiconductor laser sources generating laser light at a plurality of wavelengths. The laser source for each basic color range (red, green and blue) is formed on a single chip. The chip can be an array of the distributed feedback lasers or an array of distributed Bragg reflector lasers, each of which generates laser light at its own wavelength, or a COMB laser generating laser light at a plurality of wavelengths.All light illuminates a two-dimensional (2D) display, and the light transmitted through the display or reflected by the display at a given color range impinges on an optical unit, containing a first optical element, e.g., a lens or a mirror, the focal length of which is wavelength-sensitive. Light at different wavelengths forms 2D images at different depths. Then, once the images created by the display and the laser pulses at each wavelength are synchronized, all images of the given colored range are perceived by the human's eyes as a single 3D image of this color range.To fuse 3D images in red, green and blue that are formed at different positions, an optical element, e. g., a lens or a mirror is employed, the focal length of which is adjustable by mechanical motion, or deformation, or applying an electro-optic effect in an electric field. This optical element can be either the same first element with the wavelength-dependent focal length, or a different element. Then, once the light is switched between red, green and blue color ranges, the adjustable focal length of this element is adjusted such to compensate a change of the focal length of the first element, and the focal length of the entire optical unit is restored. Then the human's eyes average the perceived light and see a smoothly moving fully colored 3D image.

公开(公告)号：US09785043B2

公开(公告)日：2017-10-10

申请号：US14400820

申请日：2013-12-26

申请人： NITTOH INC.

发明人： Takahiko Matsuo

IPC分类号： G03B21/53 ,  G03B21/00 ,  G02B13/16 ,  G02B17/08 ,  G02B7/02 ,  G02B7/04 ,  G03B21/28

CPC分类号： G03B21/53 ,  G02B7/028 ,  G02B7/04 ,  G02B13/16 ,  G02B17/08 ,  G02B17/0896 ,  G03B21/005 ,  G03B21/28

摘要： A projection optical system (2) projects from a DMD (7) on a reducing side onto a screen (9) on an enlargement side, and includes: a first refractive optical system (10) that forms a first intermediate image (51) on the enlargement side using light incident from the reducing side; a second refractive optical system (20) that forms the first intermediate image (51) on the reducing side into a second intermediate image (52) on the enlargement side; and a first reflective optical system (30) including a first reflective surface (31a) with positive refractive power that is positioned on the enlargement side of the second intermediate image (52), wherein the second refractive optical system (20) includes a first focus lens group (61) that moves when focusing is carried out, and the first focus lens group (61) includes at least one lens (L13) included in the second refractive optical system (20).

公开(公告)号：US09678413B2

公开(公告)日：2017-06-13

申请号：US14377994

申请日：2013-03-06

申请人： SEIKO EPSON CORPORATION

发明人： Shiki Furui

IPC分类号： G03B21/14 ,  G03B21/53 ,  H04N9/31

CPC分类号： G03B21/147 ,  G03B21/53 ,  H04N9/317 ,  H04N9/3185 ,  H04N9/3194

摘要： A projector includes a projecting unit including a projection optical system and configured to project an image on a screen SC, a lens driving unit configured to perform focus adjustment for the projection optical system, a trapezoidal-distortion correcting unit configured to perform distortion correction processing for correcting distortion of the image projected by the projecting unit, and a projection control unit configured to cause the trapezoidal-distortion correcting unit to execute the distortion correction processing until a completion condition for the distortion correction processing holds after a start condition for the distortion correction processing holds and restrict the execution of the focus adjustment by the lens driving unit while the projection control unit causes the trapezoidal-distortion correcting unit to execute the distortion correction processing.

公开(公告)号：US09459518B2

公开(公告)日：2016-10-04

申请号：US14596222

申请日：2015-01-14

申请人： LITE-ON ELECTRONICS (GUANGZHOU) LIMITED ,  Lite-On Technology Corporation

发明人： Hua-De Lei ,  Chi-Hung Lin

IPC分类号： G03B21/14 ,  G03B21/53 ,  H04N9/31

CPC分类号： G03B21/147 ,  G03B21/53 ,  H04N9/3185 ,  H04N9/3194

摘要： A projection apparatus and an image calibration method thereof are provided. The image calibration method of the projection apparatus includes: transmitting N optical pulse signals to N calibration reference points on a projection plane respectively, wherein N is greater than or equal to 2; receiving N reflected optical pulse signals that are generated by reflecting the optical pulse signals; and respectively calculating time intervals between pulse waves of the optical pulse signals and the corresponding reflected optical pulse signals to obtain N time differences, thereby performing an image calibration.

摘要翻译： 提供投影装置及其图像校准方法。 投影装置的图像校准方法包括：分别向投影平面上的N个校准参考点发送N个光脉冲信号，其中N大于或等于2; 接收通过反射光脉冲信号产生的N个反射光脉冲信号; 并分别计算光脉冲信号的脉冲波与对应的反射光脉冲信号之间的时间间隔，以获得N个时间差，从而执行图像校准。

公开(公告)号：US09383635B2

公开(公告)日：2016-07-05

申请号：US14017795

申请日：2013-09-04

申请人： SEIKO EPSON CORPORATION

发明人： Yoshitaka Nakashin

IPC分类号： G03B21/14 ,  G03B21/53 ,  H04N9/31 ,  G09G3/00

CPC分类号： G03B21/147 ,  G03B21/53 ,  G09G3/001 ,  H04N9/317 ,  H04N9/3185

摘要： An image processing device is capable of suppressing the influence of the direction in which the image is projected on the projection surface to thereby improve the accuracy of the focus adjustment. The image processing device includes a detection section adapted to detect information regarding a direction in which an adjusting image for adjusting focus of an image to be projected on a projection surface is projected on the projection surface, and an adjusting image acquisition section adapted to obtain the adjusting image different in accordance with the information regarding the direction detected by the detection section.

摘要翻译： 图像处理装置能够抑制图像投影方向在投影面上的影响，提高焦点调整的精度。 该图像处理装置包括：检测部，其适于检测关于将投影在投影面上的图像的焦点的调整图像投影在投影面上的方向的信息;以及调整图像获取部， 根据与由检测部检测到的方向有关的信息调整不同的图像。

公开(公告)号：US09274404B2

公开(公告)日：2016-03-01

申请号：US13947908

申请日：2013-07-22

申请人： Seiko Epson Corporation

发明人： Kaoru Yamaguchi ,  Tadashi Kinebuchi ,  Shuji Narimatsu ,  Hiroyuki Moteki ,  Hirofumi Kasuga ,  Hidehito Iisaka

IPC分类号： G03B21/14 ,  G03B21/00 ,  G03B5/02 ,  G03B21/53 ,  H04N9/31 ,  G03B21/20 ,  G03B33/12 ,  G09G3/00

CPC分类号： G03B21/005 ,  G03B5/02 ,  G03B21/14 ,  G03B21/142 ,  G03B21/2033 ,  G03B21/2053 ,  G03B21/208 ,  G03B21/53 ,  G03B33/12 ,  G09G3/001 ,  G09G2330/026 ,  H04N9/3105 ,  H04N9/3132 ,  H04N9/317 ,  H04N9/3197

摘要： A projector includes a light source; a spatial light modulation device which modulates light from the light source according to an image that is written; a light diffusion device which adjusts a degree of diffusion of the light incident on the spatial light modulation device or the light emitted from the spatial light modulation device; and a light diffusion controller which controls the light diffusion device so that the light diffusion device diffuses the light when the light source starts to light up.

摘要翻译： 投影仪包括光源; 空间光调制装置，其根据写入的图像调制来自光源的光; 调整入射到空间光调制装置的光或从空间光调制装置发射的光的扩散程度的光漫射装置; 以及光扩散控制器，其控制光漫射装置，使得当光源开始点亮时，光漫射装置漫射光。