公开(公告)号：US08384620B2

公开(公告)日：2013-02-26

申请号：US13101002

申请日：2011-05-04

申请人： Margaret K. Brown ,  Mark Champion ,  Michael Lee Schaaf ,  Heng Huang

发明人： Margaret K. Brown ,  Mark Champion ,  Michael Lee Schaaf ,  Heng Huang

IPC分类号： G09G3/16

CPC分类号： G09G3/02 ,  G09G2320/0666 ,  G09G2360/145 ,  H04N9/3129 ,  H04N9/3158 ,  H04N9/3182 ,  H05B33/0869

摘要： The radiance of a laser diode is a function of laser diode drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded radiance, and also includes photodetectors to provide a measured radiance. The commanded radiance and measured radiance are compared, and drive currents for the laser diodes are adjusted to provide luminance and color balance tracking.

摘要翻译： 激光二极管的辐射度是激光二极管驱动电流的函数。 辐射也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令的辐射而产生光的激光二极管，并且还包括提供测量辐射度的光电检测器。 比较指令的辐射度和测量辐射度，并调整激光二极管的驱动电流以提供亮度和色平衡跟踪。

公开(公告)号：US07711018B2

公开(公告)日：2010-05-04

申请号：US11962602

申请日：2007-12-21

申请人： Mark Champion ,  Heng Huang

发明人： Mark Champion ,  Heng Huang

IPC分类号： H01S3/13

CPC分类号： H01S5/0683 ,  H01S5/0617 ,  H01S5/06812 ,  H04N9/3129 ,  H04N9/3155

摘要： The luminance of a laser diode is a function of laser diode drive current. The luminance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded luminance, and also includes photodiodes to provide a measured luminance. The commanded luminance and measured luminance are compared, and drive currents for the laser diodes are adjusted to compensate for changes in laser diode characteristics.

摘要翻译： 激光二极管的亮度是激光二极管驱动电流的函数。 亮度也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令亮度产生光的激光二极管，并且还包括提供测量亮度的光电二极管。 比较命令亮度和测量亮度，并调整激光二极管的驱动电流以补偿激光二极管特性的变化。

公开(公告)号：US20110181791A1

公开(公告)日：2011-07-28

申请号：US12894730

申请日：2010-09-30

申请人： Heng Huang ,  Mark Champion

发明人： Heng Huang ,  Mark Champion

IPC分类号： H04N9/31 ,  H01S3/10

CPC分类号： H04N9/3158 ,  H01S5/0617 ,  H01S5/06832 ,  H04N9/3129 ,  H04N9/3155

摘要： The luminance of a laser diode is a function of laser diode drive current. The luminance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded luminance, and also includes photodiodes to provide a measured luminance. The commanded luminance and measured luminance are compared, and drive currents for the laser diodes are adjusted to compensate for changes in laser diode characteristics.

摘要翻译： 激光二极管的亮度是激光二极管驱动电流的函数。 亮度也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令亮度产生光的激光二极管，并且还包括提供测量亮度的光电二极管。 比较命令亮度和测量亮度，并调整激光二极管的驱动电流以补偿激光二极管特性的变化。

公开(公告)号：US20090161707A1

公开(公告)日：2009-06-25

申请号：US11962602

申请日：2007-12-21

申请人： Mark Champion ,  Heng Huang

发明人： Mark Champion ,  Heng Huang

IPC分类号： H01S5/0683

CPC分类号： H01S5/0683 ,  H01S5/0617 ,  H01S5/06812 ,  H04N9/3129 ,  H04N9/3155

摘要： The luminance of a laser diode is a function of laser diode drive current. The luminance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded luminance, and also includes photodiodes to provide a measured luminance. The commanded luminance and measured luminance are compared, and drive currents for the laser diodes are adjusted to compensate for changes in laser diode characteristics.

摘要翻译： 激光二极管的亮度是激光二极管驱动电流的函数。 亮度也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令亮度产生光的激光二极管，并且还包括提供测量亮度的光电二极管。 比较命令亮度和测量亮度，并调整激光二极管的驱动电流以补偿激光二极管特性的变化。

公开(公告)号：US20110205498A1

公开(公告)日：2011-08-25

申请号：US13101002

申请日：2011-05-04

申请人： Margaret K. Brown ,  Mark Champion ,  Michael Lee Schaaf ,  Heng Huang

发明人： Margaret K. Brown ,  Mark Champion ,  Michael Lee Schaaf ,  Heng Huang

IPC分类号： G03B21/14

CPC分类号： G09G3/02 ,  G09G2320/0666 ,  G09G2360/145 ,  H04N9/3129 ,  H04N9/3158 ,  H04N9/3182 ,  H05B33/0869

摘要： The radiance of a laser diode is a function of laser diode drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded radiance, and also includes photodetectors to provide a measured radiance. The commanded radiance and measured radiance are compared, and drive currents for the laser diodes are adjusted to provide luminance and color balance tracking.

摘要翻译： 激光二极管的辐射度是激光二极管驱动电流的函数。 辐射也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令辐射而产生光的激光二极管，并且还包括提供测量辐射度的光电检测器。 比较指令的辐射度和测量辐射度，并调整激光二极管的驱动电流以提供亮度和色平衡跟踪。

公开(公告)号：US09407887B2

公开(公告)日：2016-08-02

申请号：US12754995

申请日：2010-04-06

申请人： Mark Champion ,  Heng Huang

发明人： Mark Champion ,  Heng Huang

IPC分类号： H04N9/31 ,  G09G3/02 ,  G09G3/34

CPC分类号： H04N9/3155 ,  G09G3/025 ,  G09G3/3406 ,  G09G2320/0626 ,  G09G2330/026 ,  G09G2330/12 ,  G09G2340/04

摘要： Briefly, in accordance with one or more embodiments, a display is powered on to display a projected image, and the operation of one or more display elements are ramped up until a stabilized state is reached. During said ramping up, a light source of the display is powered display at less than full power until the stabilized state is reached. While the light source is operating at less than full power, a splash screen may be displayed. After the stabilized state is reached, the light source can then be operated at or near full power. By providing a light output that is less than full power during ramp up, the display does not need to wait until the stabilized state is reached before the light source is powered on. As a result, the projector provides an output earlier in time to cue to the user that the projector is operating.

摘要翻译： 简而言之，根据一个或多个实施例，对显示器通电以显示投影图像，并且一个或多个显示元件的操作被斜升直到达到稳定状态。 在上升期间，显示器的光源以小于全功率供电显示，直到达到稳定状态。 当光源工作在小于全功率时，可能会显示闪屏。 在达到稳定状态之后，光源可以在全功率或接近全功率下工作。 通过在斜坡上升期间提供小于全功率的光输出，在光源通电之前，显示器不需要等到达到稳定状态。 因此，投影机可以及时提供输出以提示用户投影机正在运行。

公开(公告)号：US08665920B2

公开(公告)日：2014-03-04

申请号：US12894730

申请日：2010-09-30

申请人： Heng Huang ,  Mark Champion

发明人： Heng Huang ,  Mark Champion

IPC分类号： H01S5/042 ,  H01S5/068

CPC分类号： H04N9/3158 ,  H01S5/0617 ,  H01S5/06832 ,  H04N9/3129 ,  H04N9/3155

摘要： The luminance of a laser diode is a function of laser diode drive current. The luminance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded luminance, and also includes photodiodes to provide a measured luminance. The commanded luminance and measured luminance are compared, and drive currents for the laser diodes are adjusted to compensate for changes in laser diode characteristics.

摘要翻译： 激光二极管的亮度是激光二极管驱动电流的函数。 亮度也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令亮度产生光的激光二极管，并且还包括提供测量亮度的光电二极管。 比较命令亮度和测量亮度，并调整激光二极管的驱动电流以补偿激光二极管特性的变化。

公开(公告)号：US20110181574A1

公开(公告)日：2011-07-28

申请号：US12754995

申请日：2010-04-06

申请人： Mark Champion ,  Heng Huang

发明人： Mark Champion ,  Heng Huang

IPC分类号： G09G5/00

CPC分类号： H04N9/3155 ,  G09G3/025 ,  G09G3/3406 ,  G09G2320/0626 ,  G09G2330/026 ,  G09G2330/12 ,  G09G2340/04

摘要： Briefly, in accordance with one or more embodiments, a display is powered on to display a projected image, and the operation of one or more display elements are ramped up until a stabilized state is reached. During said ramping up, a light source of the display is powered display at less than full power until the stabilized state is reached. While the light source is operating at less than full power, a splash screen may be displayed. After the stabilized state is reached, the light source can then be operated at or near full power. By providing a light output that is less than full power during ramp up, the display does not need to wait until the stabilized state is reached before the light source is powered on. As a result, the projector provides an output earlier in time to cue to the user that the projector is operating.

摘要翻译： 简而言之，根据一个或多个实施例，显示器被通电以显示投影图像，并且一个或多个显示元件的操作被斜升直到达到稳定状态。 在上升期间，显示器的光源以小于全功率供电显示，直到达到稳定状态。 当光源工作在小于全功率时，可能会显示闪屏。 在达到稳定状态之后，光源可以在全功率或接近全功率下工作。 通过在斜坡上升期间提供小于全功率的光输出，在光源通电之前，显示器不需要等到达到稳定状态。 因此，投影机可以及时提供输出以提示用户投影机正在运行。

公开(公告)号：US20090160833A1

公开(公告)日：2009-06-25

申请号：US11962561

申请日：2007-12-21

申请人： Margaret K. Brown ,  Mark Champion ,  Michael Lee Schaaf ,  Heng Huang

发明人： Margaret K. Brown ,  Mark Champion ,  Michael Lee Schaaf ,  Heng Huang

IPC分类号： G09G5/00

CPC分类号： G09G3/02 ,  G09G2320/0666 ,  G09G2360/145 ,  H04N9/3129 ,  H04N9/3158 ,  H04N9/3182 ,  H05B33/0869

摘要： The radiance of a laser diode is a function of laser diode drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded radiance, and also includes photodetectors to provide a measured radiance. The commanded radiance and measured radiance are compared, and drive currents for the laser diodes are adjusted to provide luminance and color balance tracking.

摘要翻译： 激光二极管的辐射度是激光二极管驱动电流的函数。 辐射也是其他因素的函数，如年龄和温度。 激光投影装置包括响应于指令的辐射而产生光的激光二极管，并且还包括提供测量辐射度的光电检测器。 比较指令的辐射度和测量辐射度，并调整激光二极管的驱动电流以提供亮度和色平衡跟踪。

公开(公告)号：US08274522B2

公开(公告)日：2012-09-25

申请号：US12957577

申请日：2010-12-01

申请人： Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Kelly D. Linden ,  Aarti Raghavan ,  Shawn M. Swilley

发明人： Margaret K. Brown ,  Mark O. Freeman ,  Mark Champion ,  Kelly D. Linden ,  Aarti Raghavan ,  Shawn M. Swilley

IPC分类号： G09G5/36 ,  G09G5/00

CPC分类号： G09G3/001 ,  G02B26/0816 ,  G09G3/02 ,  G09G3/025 ,  G09G5/006 ,  G09G5/022 ,  G09G5/395 ,  G09G2320/028 ,  H04N3/08 ,  H04N9/3129 ,  H04N19/186 ,  H04N19/59 ,  H04N19/86

摘要： An image generation apparatus provides interpolation and distortion correction. The interpolation and distortion correction may be provided in one or two dimensions. Nonlinear image scan trajectories, such as sinusoidal and bi-sinusoidal trajectories are accommodated. Horizontal and vertical scan positions are determined using a linear pixel clock, and displayed pixel intensities are determined using interpolation techniques.

摘要翻译： 图像生成装置提供插值和失真校正。 内插和失真校正可以以一维或二维提供。 非线性图像扫描轨迹，例如正弦和双正弦轨迹。 使用线性像素时钟确定水平和垂直扫描位置，并且使用内插技术确定显示的像素强度。