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    Method for controlling the position of a MEMS mirror
    2.
    发明授权
    Method for controlling the position of a MEMS mirror 有权

    公开(公告)号：US09798136B2

    公开(公告)日：2017-10-24

    申请号：US15024740

    申请日：2013-10-07

    Applicant: INTEL CORPORATION

    Inventor： Martin Lemaire ,  Thierry Barras ,  Nicolas Abele

    IPC: G02B26/08 ,  G02B7/00

    CPC classification number: G02B26/085 ,  G02B7/008

    Abstract: According to the present invention there is provided a method of controlling the position of a MEMS mirror in a MEMS device, wherein the MEMS device comprises, a MEMS mirror, a magnet which provides a magnetic field (B), an actuating means which operatively cooperates with the MEMS mirror so that it can apply a force to the MEMS mirror which can tilt the MEMS mirror about at least one rotational axis when the actuating means is provided with a drive signal, wherein the magnitude force applied by the actuating means to the MEMS mirror is dependent on the amplitude of the drive signal, and a detection coil which is mounted on the MEMS mirror, the method comprising the steps of, detecting a change in the resistance (R) of the detection coil so as to detect a change in temperature of the MEMS mirror; determining the drive signal amplitude required to maintain the MEMS mirror at a predefined angular position (Θ); providing the actuating means with a drive signal which has an amplitude which is equal to the determined drive signal amplitude.

    Method and device for projecting an image with improved safety
    3.
    发明授权
    Method and device for projecting an image with improved safety 有权

    公开(公告)号：US09787959B2

    公开(公告)日：2017-10-10

    申请号：US14901004

    申请日：2013-06-26

    Applicant: INTEL CORPORATION

    Inventor： Jeremy Schlachter ,  Nicolas Abele

    IPC: H04N9/31 ,  G03B21/20 ,  G02B26/08

    CPC classification number: H04N9/3185 ,  G02B26/0833 ,  G03B21/2033 ,  G03B21/2053 ,  G03B21/2086 ,  H04N9/3129 ,  H04N9/3155

    Abstract: A projection device comprising a MEMS mirror which oscillates about one or more oscillation axes to scan light from one or more lasers, across a display screen, to project pixels which define an image onto a display screen is disclosed. A method comprising selecting a laser class for the projection device; calculating relationship between maximum accessible emission limit and distance, for the selected laser class, for a predetermined number of black pixels in an image; determining the distance between a display screen and the projection device; and modifying a pixel stream which defines said image which is to be projected by the projection device, so that the pixel stream is provided with said predetermined number of black pixels is provided.

    METHOD AND DEVICE FOR PROJECTING A 3-D VIEWABLE IMAGE
    5.
    发明申请
    METHOD AND DEVICE FOR PROJECTING A 3-D VIEWABLE IMAGE 审中-公开

    公开(公告)号：US20190075287A1

    公开(公告)日：2019-03-07

    申请号：US15959904

    申请日：2018-04-23

    Applicant: INTEL CORPORATION

    Inventor： Lucio Kilcher ,  Nicolas Abele

    IPC: H04N13/315 ,  H04N9/31 ,  G02B27/22 ,  G03B21/28 ,  H04N13/365 ,  G03B37/04 ,  H04N13/398 ,  H04N13/366 ,  H04N13/363

    CPC classification number: H04N13/315 ,  G02B27/22 ,  G03B21/28 ,  G03B37/04 ,  H04N9/3129 ,  H04N9/3147 ,  H04N9/3179 ,  H04N13/363 ,  H04N13/365 ,  H04N13/366 ,  H04N13/398

    Abstract: According to the present invention there is provided a method for projecting a 3-D viewable image onto a display surface, comprising the steps of, providing two or more projection systems; arranging the two or more projection systems into a first group and second group, wherein the first group and second group each comprise one or more projection systems; arranging the first and second group of projection systems such that each group of project systems can project an image on a display surface, wherein the first group of projection systems is arranged such that the first group of projection systems can project an image to a first position on the display surface and the second group of projection systems is arranged such that the second group of projection systems can project an image to a second position on the display surface, wherein the first and second positions are off-set from one another; configuring the first and second group of projection systems such that the first and second group of projection systems alternately project onto the display surface. There is further provided a corresponding projection system.

    METHOD AND DEVICE FOR PROJECTING AN IMAGE WITH IMPROVED SAFETY
    6.
    发明申请
    METHOD AND DEVICE FOR PROJECTING AN IMAGE WITH IMPROVED SAFETY 审中-公开

    公开(公告)号：US20180131916A1

    公开(公告)日：2018-05-10

    申请号：US15727836

    申请日：2017-10-09

    Applicant: INTEL CORPORATION

    Inventor： Jeremy Schlachter ,  Nicolas Abele

    IPC: H04N9/31 ,  G02B26/08 ,  G03B21/20

    CPC classification number: H04N9/3185 ,  G02B26/0833 ,  G03B21/2033 ,  G03B21/2053 ,  G03B21/2086 ,  H04N9/3129 ,  H04N9/3155

    Abstract: A method of projecting an image with improved safety, using a projection device which comprises a MEMS mirror which oscillates about one or more oscillation axes to scan light from one or more lasers, across a display screen, to project pixels which define an image onto a display screen, the method comprising the steps of, (a) selecting a laser class for the projection device; (b) calculating relationship between maximum accessible emission limit and distance, for the selected laser class, for a predetermined number of black pixels in an image; (c) repeating step (b) a plurality of times, each for a different predetermined number of black pixels in the image, so as to provide a plurality of relationships between maximum accessible emission limit and distance, for the selected laser class, wherein each relationship is for different predetermined number of black pixels in the image; (d) determining the distance between a display screen and the projection device; (e) selecting a desired maximum accessible emission limit for an image which is to be projected by the projection device onto said display screen; (f) selecting a relationship, from the plurality of relationships between maximum accessible emission limit and distance, which contains a maximum accessible emission limit which is equal to the desired maximum accessible emission limit selected in step (e), at the distance determined in step (d) and; (g) identifying the predetermined number of black pixels in the image for that selected relationship; (h) modifying a pixel stream which defines said image which is to be projected by the projection device, so that the pixel stream is provided with said predetermined number of black pixels identified in step (g). There is further provided a corresponding projection device.

    Compact illumination system
    8.
    发明授权
    Compact illumination system 有权
    小型照明系统

    公开(公告)号：US09507143B2

    公开(公告)日：2016-11-29

    申请号：US14491012

    申请日：2014-09-19

    Applicant: Intel Corporation

    Inventor： Nicolas Abele ,  Lucio Kilcher

    IPC: G02B26/10 ,  G02B3/00 ,  G02B19/00

    CPC classification number: G02B26/105 ,  G02B19/0028 ,  G02B19/0061 ,  G02B19/0085 ,  G02B26/0833 ,  H01L25/0652 ,  H01L25/50 ,  H01L33/58 ,  H01L33/60

    Abstract: An illumination system includes a light source arranged for emitting non-collimated light towards a reflective surface of a scanning mirror assembly such that the light source occludes a region of the light reflected from the reflective surface. The scanning mirror assembly includes the reflective surface, which is arranged to be rotationally displaced around at least one rotation axis. The illumination system also includes an optical element for changing the propagation direction of the said reflected light so as to illuminate at least a part of the said occluded region.

    Abstract translation: 照明系统包括光源，光源被布置成朝向扫描反射镜组件的反射表面发射非准直光，使得光源遮挡从反射表面反射的光的区域。 扫描反射镜组件包括被设置为围绕至少一个旋转轴线旋转移位的反射表面。 照明系统还包括用于改变所述反射光的传播方向以照亮所述遮挡区域的至少一部分的光学元件。

    Laser driver and method of operating a laser
    9.
    发明授权
    Laser driver and method of operating a laser 有权

    公开(公告)号：US09496682B2

    公开(公告)日：2016-11-15

    申请号：US14653186

    申请日：2012-12-18

    Applicant: Intel Corporation

    Inventor： Nicolas Abele ,  Mohammed Adham

    IPC: H01S5/06 ,  H01S5/062 ,  G02B26/10 ,  H01S5/00 ,  H04N9/31

    CPC classification number: H01S5/0617 ,  G02B26/105 ,  H01S5/0014 ,  H01S5/06216 ,  H04N9/3135 ,  H04N9/3194

    Abstract: According to the present invention there is provided a method of operating a laser comprising the steps of; defining an intensity value (KVIDEO red, KVIDEO green, KVIDEO blue) for a light beam which is to be output from the laser; determining if the defined intensity value is greater than, or less than, a threshold intensity (KTH red, KTH green, KTH blue) for the laser, wherein the threshold intensity is the intensity of the light which is output from the laser when the input current to the laser is equal to the threshold current (ITH red, ITH green, ITH blue) of the laser, wherein the threshold current (ITH red, ITH green, ITH blue) of the laser is an input current value below which the laser would operate in its light emitting region and equal to, or above which, the laser will operate in its laser region; operating the laser using current from at least a DAC current source if the defined intensity value (KVIDEO red, KVIDEO green, KVIDEO blue) is greater than the threshold intensity (KTH red, KTH green, KTH blue), wherein the DAC current source operates the laser by inputting to the laser a continuous current which has an amplitude which is greater than the threshold current (ITH red, ITH green, ITH blue) of the laser, and which has an amplitude such that the laser is operated to output a light beam which has an intensity equal to the defined intensity value (KVIDEO red, KVIDEO green, KVIDEO blue); and operating the laser using current from the PWM current source only, if the defined intensity value (KVIDEO red, KVIDEO green, KVIDEO blue) is less than the threshold intensity (KTH red, KTH green, KTH blue), wherein the PWM current source operates the laser by inputting to the laser a current which has an amplitude which is at least equal to the threshold current value (ITH red, ITH green, ITH blue) of the laser, and wherein the duration of time over which the PWM current source inputs its current to the laser is such that the laser is operated to output a light beam which has an intensity equal to the defined intensity value (KVIDEO red, KVIDEO green, KVIDEO blue). There is further provided a corresponding laser driver.

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