Light-source system for optical projection and projection device comprising the same

    公开(公告)号:US11650491B2

    公开(公告)日:2023-05-16

    申请号:US17273771

    申请日:2019-04-08

    CPC classification number: G03B21/204 G02B27/102 G03B21/28

    Abstract: The present disclosure provides a light source system and a projection device. The light source system includes: a laser light source, a supplementary light source, a wavelength conversion device and an imaging subsystem. The laser light source is configured to emit laser light. The supplementary light source is configured to emit supplementary light. The wavelength conversion device is configured to convert the laser light into excited light and output first light including the excited light and the laser light. The imaging subsystem is configured to form a first light imaging beam, a supplementary light imaging beam, and a mixed light imaging beam; the imaging subsystem includes a light combining device and a reflective assembly, the light combining device is placed at an intersection of the first light imaging beam and the supplementary light imaging beam, and the reflective assembly is placed between the wavelength conversion device and the light combining device.

    Projection system
    2.
    发明授权

    公开(公告)号:US10168610B2

    公开(公告)日:2019-01-01

    申请号:US15532461

    申请日:2015-12-02

    Abstract: A projection system includes a light source system for generating a first light beam in a first timing sequence and for generating a second light beam in a second timing sequence, the first light beam comprising a first light and a first compensation light, and the second light beam comprising a second light or comprising the second light and a first compensation light. A light splitting device sequentially divides the first light beam and the second light beam into a light transmitting along a first light path and a light transmitting along a second light path. A first light modulating device modulates the light travelling along the first light path, and a second light modulating device modulates the light travelling along the second light path. The first light or the second light is compensated by the first compensation light to have a wider color gamut of a synthesized color image.

    Light-Source System and Projection Device

    公开(公告)号:US20210318602A1

    公开(公告)日:2021-10-14

    申请号:US17273771

    申请日:2019-04-08

    Abstract: The present disclosure provides a light source system and a projection device. The light source system includes: a laser light source, a supplementary light source, a wavelength conversion device and an imaging subsystem. The laser light source is configured to emit laser light. The supplementary light source is configured to emit supplementary light. The wavelength conversion device is configured to convert the laser light into excited light and output first light including the excited light and the laser light. The imaging subsystem is configured to form a first light imaging beam, a supplementary light imaging beam, and a mixed light imaging beam; the imaging subsystem includes a light combining device and a reflective assembly, the light combining device is placed at an intersection of the first light imaging beam and the supplementary light imaging beam, and the reflective assembly is placed between the wavelength conversion device and the light combining device.

    Light source system and projection system

    公开(公告)号:US10139713B2

    公开(公告)日:2018-11-27

    申请号:US15564180

    申请日:2016-04-05

    Abstract: A light source system includes an excitation light source emitting excitation light in at least first and second time intervals; a compensation light source emitting compensation light in at least third time intervals, the compensation light including laser light of at least one color; and a rotating color wheel, including at least first and second regions, the first region generating light of at least two different colors in time sequence under irradiation of the excitation light in the first and second time sequences, and the second region transmitting the compensation light in at least the third time sequence. The light of the at least two different colors includes at least one type of wide-spectrum fluorescence, and the laser compensates for the fluorescence or light split from the fluorescence. The compensation light is directly transmitted without being irradiated upon fluorescent powder, so scattering loss of the compensation light is reduced.

    Stereoscopic image projection device and stereoscopic display glasses

    公开(公告)号:US10863167B2

    公开(公告)日:2020-12-08

    申请号:US15510002

    申请日:2015-08-19

    Inventor: Zeqin Wang

    Abstract: A stereoscopic image projection device and stereoscopic display glasses include a light source system for sequentially generating a first broad spectrum light and a second broad spectrum light; a light splitter for splitting the first broad spectrum light into a first wavelength light and a second wavelength light, each having different wavelengths, and splitting the second broad spectrum light into a third wavelength light and a fourth wavelength light, each having different wavelengths; and a controller for simultaneously controlling the first wavelength light to display a corresponding color in a left-eye image and the second wavelength light to display a corresponding color in a right-eye image, and simultaneously controlling the third wavelength light to display a corresponding color in the left-eye image and the fourth wavelength light to display a corresponding color in the right-eye image. At the same time, the left eye of a viewer can see the first wavelength light or the third wavelength light, and the right eye thereof can see the second wavelength light or the fourth wavelength light, such that the left and right eyes of the viewer simultaneously receive light rays, thus relieving fatigue to the eyes.

    Projection system
    7.
    发明授权

    公开(公告)号:US10466580B2

    公开(公告)日:2019-11-05

    申请号:US16219224

    申请日:2018-12-13

    Abstract: A projection system includes a light source system that has a first light source for emitting first light, and a rotating color wheel that has at least a first fluorescent color band to absorb the first light and generate second light, and a second fluorescent color band to absorb the first light and generate compensation light. A light splitting device sequentially splits the first and second lights into light travelling along first and second light paths respectively. A first light modulation device modulates the light travelling along the first light path, and a second light modulation device for modulating the light travelling along the second light path. The first light is a primary light, the second light is a wide-spectrum light comprising at least two kinds of primary light, and a combined light of the first light and the second light comprises light of three primary colors.

    PROJECTION SYSTEM
    8.
    发明申请
    PROJECTION SYSTEM 审中-公开

    公开(公告)号:US20190113834A1

    公开(公告)日:2019-04-18

    申请号:US16219224

    申请日:2018-12-13

    Abstract: A projection system includes a light source system that has a first light source for emitting first light, and a rotating color wheel that has at least a first fluorescent color band to absorb the first light and generate second light, and a second fluorescent color band to absorb the first light and generate compensation light. A light splitting device sequentially splits the first and second lights into light travelling along first and second light paths respectively. A first light modulation device modulates the light travelling along the first light path, and a second light modulation device for modulating the light travelling along the second light path. The first light is a primary light, the second light is a wide-spectrum light comprising at least two kinds of primary light, and a combined light of the first light and the second light comprises light of three primary colors.

    Light-emitting device and projection system

    公开(公告)号:US10184641B2

    公开(公告)日:2019-01-22

    申请号:US15564159

    申请日:2016-04-05

    Abstract: A light emitting device includes a light source module comprising an excitation light source for emitting exciting light and a compensation light source for emitting compensation light; and a color wheel component, comprising at least one segmented region distributed in a motion direction of the color wheel component. The color wheel component emits the compensation light and first light that comprises at least one beam of excited light under irradiation of the excitation light source and the compensation light source. The compensation light spectrally overlaps the at least one beam of excited light in the first light, and the compensation light and the excited light spectrally overlapping the compensation light are simultaneously emitted and are independently adjustable. A projection system comprising a light emitting device is further provided.

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