Projection type display apparatus and method of controlling the same

    公开(公告)号:US09906763B2

    公开(公告)日:2018-02-27

    申请号:US15315331

    申请日:2014-06-06

    发明人: Mitsuru Takahashi

    IPC分类号: H04N9/31

    摘要: A projection type display apparatus includes: a semiconductor laser element that outputs laser light based on supply of current; a digital mirror device (DMD) that modulates the light output from the semiconductor laser element and emits the modulated light; a projection lens that projects the incident light via the DMD; a drive unit that drives the semiconductor laser element and includes a current detection unit for detecting the current value of the current flowing through the semiconductor laser element; and a controller that, when the current value detected by the current detection unit becomes greater than a first threshold, controls driving of the DMD so that the light output from the DMD will not be incident on the projection lens, and when the current value detected becomes greater than a second threshold greater than the first threshold, causes the drive unit to cut off the supply of current.

    Method and device for projecting an image with improved safety

    公开(公告)号:US09787959B2

    公开(公告)日:2017-10-10

    申请号:US14901004

    申请日:2013-06-26

    申请人: INTEL CORPORATION

    IPC分类号: H04N9/31 G03B21/20 G02B26/08

    摘要: 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.

    PROJECTION TYPE DISPLAY APPARATUS AND METHOD OF CONTROLLING THE SAME

    公开(公告)号:US20170208306A1

    公开(公告)日:2017-07-20

    申请号:US15315331

    申请日:2014-06-06

    发明人: Mitsuru TAKAHASHI

    IPC分类号: H04N9/31

    摘要: A projection type display apparatus includes: a semiconductor laser element that outputs laser light based on supply of current; a digital mirror device (DMD) that modulates the light output from the semiconductor laser element and emits the modulated light; a projection lens that projects the incident light via the DMD; a drive unit that drives the semiconductor laser element and includes a current detection unit for detecting the current value of the current flowing through the semiconductor laser element; and a controller that, when the current value detected by the current detection unit becomes greater than a first threshold, controls driving of the DMD so that the light output from the DMD will not be incident on the projection lens , and when the current value detected becomes greater than a second threshold greater than the first threshold, causes the drive unit to cut off the supply of current.

    IMAGE DISPLAY APPARATUS
    5.
    发明申请

    公开(公告)号:US20170124926A1

    公开(公告)日:2017-05-04

    申请号:US15319220

    申请日:2015-05-13

    申请人: SONY CORPORATION

    发明人: SHOJI MITSUHASHI

    IPC分类号: G09G3/00 H04N9/31

    摘要: An image display apparatus according to an embodiment of the present technology includes an image display unit, a calculator, and a notification section. The image display unit includes an emission surface and displays an image by emitting light from the emission surface. The calculator calculates a reference distance from the emission surface, the reference distance serving as a determination criteria for an influence of emitted light that is emitted from the image projection section. The notification section notifies about information on the influence of the emitted light on the basis of the calculated reference distance.

    Projector
    8.
    发明申请
    Projector 审中-公开
    投影机

    公开(公告)号:US20140253883A1

    公开(公告)日:2014-09-11

    申请号:US14194171

    申请日:2014-02-28

    发明人: Kenji AKAMATSU

    IPC分类号: G03B21/14

    摘要: A projector includes a projection portion projecting an image on a screen by scanning a laser beam emitted from a laser beam generation portion, a light detecting portion detecting at least the laser beam reflected by a detection object, and a control portion configured to perform control of accepting an apparatus operation on the basis of a detection result of the laser beam reflected by the detection object obtained by the light detecting portion and control of detecting the breakage of the screen on the basis of a detection result of the laser beam reflected by the screen obtained by the light detecting portion.

    摘要翻译: 投影仪包括通过扫描从激光束产生部发射的激光束,至少检测由检测对象物反射的激光束的光检测部分,以及控制部分,该投影部分将图像投影在屏幕上, 基于由光检测部分获得的检测对象反射的激光束的检测结果,并根据由屏幕反射的激光束的检测结果来检测屏幕的断裂的控制,接受设备操作 由光检测部获得。

    Light source device, projector, and method of assembling light source device
    10.
    发明授权
    Light source device, projector, and method of assembling light source device 有权
    光源装置,投影仪以及组装光源装置的方法

    公开(公告)号:US08801198B2

    公开(公告)日:2014-08-12

    申请号:US13432541

    申请日:2012-03-28

    申请人: Shigeru Hirosawa

    发明人: Shigeru Hirosawa

    IPC分类号: G03B21/14 G03B21/20

    摘要: The light source device includes: a first support that supports one of a light source and a collimator lens condensing; a second support that supports the other of the light source and the collimator lens; and a fixing member that fixes the first support to the second support. The first support includes a first protruding portion that protrudes from the first support toward the second support, the first protruding portion having a through hole therethrough. The second support includes a second protruding portion that protrudes from the second support toward the first support, the second protruding portion having: a receiving portion that receives the first protruding portion; and a receiving hole. A rod portion of a locking member is inserted into the through hole and the receiving hole, and a head portion of a locking member is sealed with a sealant.

    摘要翻译: 光源装置包括:支撑光源和准直透镜冷凝中的一个的第一支撑件; 支撑另一个光源和准直透镜的第二支撑件; 以及固定构件,其将所述第一支撑件固定到所述第二支撑件。 第一支撑件包括从第一支撑件朝向第二支撑件突出的第一突出部分,第一突出部分具有穿过其的通孔。 第二支撑件包括从第二支撑件朝向第一支撑件突出的第二突出部分,第二突出部分具有:容纳第一突出部分的接收部分; 和接收孔。 锁定构件的杆部插入到通孔和容纳孔中,并且用密封剂密封锁定构件的头部。