Methods and systems of vibrating a screen

    公开(公告)号:US10691007B2

    公开(公告)日:2020-06-23

    申请号:US15949101

    申请日:2018-04-10

    IPC分类号: G03B21/56 G02B27/48 B06B1/04

    摘要: Screen vibration systems are provided that can vibrate theatre screens using acoustical, electromagnetic, or another type of energy while reducing the presence of image artifacts that may otherwise be visible as result of vibrating the screen. In one example of a screen vibration system, the system includes a screen, a permanent magnet mounted to the screen, and a magnetic source positioned with respect to the permanent magnet and uncoupled from the screen. The screen is moveable in response to a changing magnetic field from the magnetic source.

    Despeckling System for Projected Light
    12.
    发明申请

    公开(公告)号:US20170371173A1

    公开(公告)日:2017-12-28

    申请号:US15543733

    申请日:2016-02-18

    IPC分类号: G02B27/48 H04N9/31 G02B26/08

    摘要: Speckle artifacts as viewed in images projected on a display surface by a projector can be reduced. At least one spatial light modulator, illuminated by one or more light sources, can be imaged to a screen by a projection lens. A deflector subsystem can be provided in image space, proximate to the lens, where the image light emerges. In this location, image light directed to any given field point on the display surface is convergent, but can appear collimated. The deflector subsystem can include a tilted optical plate that is rotated in a plane along an axis. As the deflector subsystem is temporally rotated, the image light to any given field point traverses different optical paths, varying the angular diversity to reduce perceivable speckle by changing at least the angle of incidence to the screen.

    Methods And Systems For Controlling Light Output Based On A Light Level Threshold At A Boundary

    公开(公告)号:US20230314924A1

    公开(公告)日:2023-10-05

    申请号:US18040948

    申请日:2021-08-06

    IPC分类号: G03B21/20 H05B47/11

    摘要: A system may include a projector subsystem in a theatre projecting fight toward a screen, a sensor measuring light levels of the projected light, and a processing device. The projector subsystem may project light such that there is a hazardous light area and a non-hazardous light area of an audience seating area. The processing device may receive a measured light level of projected light from the sensor. The processing device may determine a second light level between the hazardous light area and the non-hazardous light area based on the measured light level and the position of the light projected over the audience seating area. The processing device may compare the second light level to an unsafe threshold light level. The processing device may determine a configuration for the system such that the light level of projected light in the non-hazardous light area is less than the unsafe threshold light level.

    Methods and systems of vibrating a screen

    公开(公告)号:US11294269B2

    公开(公告)日:2022-04-05

    申请号:US17111079

    申请日:2020-12-03

    IPC分类号: G03B21/56 B06B1/04 G02B27/48

    摘要: Screen vibration systems are provided that can vibrate theatre screens using acoustical, electromagnetic, or another type of energy while reducing the presence of image artifacts that may otherwise be visible as result of vibrating the screen. In one example of a screen vibration system, the system includes a controller and an electromechanical acoustical actuator with an open baffle. The electromechanical acoustical actuator can be uncoupled from the screen in an operational setup. The controller can provide a signal to the electromechanical acoustical actuator for causing the electromechanical acoustical actuator to output energy to displace air that is (i) in front of the electromechanical acoustical actuator and (ii) between the electromechanical acoustical actuator and the screen. The open baffle can prevent displaced air behind the electromechanical acoustical actuator from affecting the screen.

    METHODS AND SYSTEMS OF VIBRATING A SCREEN
    17.
    发明申请

    公开(公告)号:US20200272042A1

    公开(公告)日:2020-08-27

    申请号:US15930028

    申请日:2020-05-12

    IPC分类号: G03B21/56 G02B27/48

    摘要: A cinema screen can be vibrated by a screen vibrator assembly. A screen vibrator assembly can include a vibrator, a mount bracket, and an isolation device. The vibrator can be positioned to generate a vibration for vibrating a cinema screen. The mount bracket is configured to be coupled to a screen support structure of the cinema screen. The isolation device is configured to couple the vibrator to the mount bracket to isolate the mount bracket from the vibration.