Projection device and headlight for vehicle

    公开(公告)号:US11226077B2

    公开(公告)日:2022-01-18

    申请号:US17142293

    申请日:2021-01-06

    Abstract: A projection device and a headlight for vehicle are provided. The projection device includes a light source, a light valve and a projection lens. The light source is used to emit a light beam. The light valve is located at the downstream of an optical path of the light source. The projection lens is located at the downstream of an optical path of the light valve and has an optical axis. The light valve is located on the optical axis of the projection lens and is tilted with respect to the projection lens to form an acute angle with the optical axis. The projection lens is used for projecting the light beam on a first projection surface and a second projection surface.

    LIGHT PATH ADJUSTMENT MECHANISM
    12.
    发明申请

    公开(公告)号:US20210271071A1

    公开(公告)日:2021-09-02

    申请号:US17184016

    申请日:2021-02-24

    Abstract: A light path adjustment mechanism includes a carrier, an optical plate member, a support, a base, a first pair of transmission mechanical pieces, and a second pair of transmission mechanical pieces. One side of the support is provided with a first actuator, and one side of the base is provided with a second actuator. The first pair of transmission mechanical pieces are connected between the base and the support, and the second pair of transmission mechanical pieces are connected between the carrier and the support. The first pair of transmission mechanical pieces are entirely disposed on only one side of the carrier.

    PROJECTION DEVICE AND HEADLIGHT FOR VEHICLE

    公开(公告)号:US20210207784A1

    公开(公告)日:2021-07-08

    申请号:US17142293

    申请日:2021-01-06

    Abstract: A projection device and a headlight for vehicle are provided. The projection device includes a light source, a light valve and a projection lens. The light source is used to emit a light beam. The light valve is located at the downstream of an optical path of the light source. The projection lens is located at the downstream of an optical path of the light valve and has an optical axis. The light valve is located on the optical axis of the projection lens and is tilted with respect to the projection lens to form an acute angle with the optical axis. The projection lens is used for projecting the light beam on a first projection surface and a second projection surface.

    LIGHT PATH ADJUSTMENT MECHANISM
    14.
    发明申请

    公开(公告)号:US20200301118A1

    公开(公告)日:2020-09-24

    申请号:US16822695

    申请日:2020-03-18

    Abstract: A light path adjustment mechanism includes a bracket, a light valve, a carrier, a first axis, a second axis and an optical plate member. A surface normal of a surface of the light valve crosses the bracket to define an intersection closest to the surface of the light valve, and the bracket has an end point furthest from the intersection measured in the direction of the surface normal. A distance between the intersection and the surface measured in the direction of the surface normal is smaller than a distance between the intersection and the end point measured in the direction of the surface normal.

    THREE DIMENSIONAL PRINTING APPARATUS
    15.
    发明申请

    公开(公告)号:US20200298485A1

    公开(公告)日:2020-09-24

    申请号:US16689096

    申请日:2019-11-20

    Inventor: Chien-Hsing Tsai

    Abstract: A three dimensional printing apparatus includes a carrier, a glass plate and a film. The glass plate is disposed on the carrier. The film covers the glass plate and is folded over an edge of the carrier. An interface between the glass plate and the film is in communication with the external space via a channel between the edge and the sidewall of the glass plate.

    Optical lens and fabrication method thereof

    公开(公告)号:US10718928B2

    公开(公告)日:2020-07-21

    申请号:US15955112

    申请日:2018-04-17

    Abstract: On embodiment of the invention provides an optical lens includes a lens barrel, a first lens group and a photo interrupter disposed in the lens barrel, a light-shading sheet and a power machine. The photo interrupter has an optical transmitter and an optical receiver, the optical transmitter emits a light beam in a first direction, and the optical receiver receives the light beam. The light-shading sheet is disposed in a propagation path of the light beam and has two shading parts with mutually different lengths. The power machine is linked to a kinetic machine part, and the kinetic machine part is connected to the first lens group.

    OPTICAL LENS SYSTEM
    18.
    发明申请
    OPTICAL LENS SYSTEM 审中-公开

    公开(公告)号:US20200218038A1

    公开(公告)日:2020-07-09

    申请号:US16821253

    申请日:2020-03-17

    Abstract: An optical lens system using ultraviolet for imaging includes, in order from a magnified side to a minified side, a first lens group of positive refractive power and a second lens group of positive refractive power. The second lens group includes at least one cemented lens and at least one aspheric lens. The optical lens system satisfies the condition of TE(λ=400)>94%, where TE(λ=400) denotes an overall transmittance of all of the lenses in the optical lens system measured at a wavelength of 400 nm and is equal to a product of respective internal transmittances of all of the lenses measured at a wavelength of 400 nm.

    Optical lens
    19.
    发明授权
    Optical lens 审中-公开

    公开(公告)号:US10670846B2

    公开(公告)日:2020-06-02

    申请号:US15670493

    申请日:2017-08-07

    Abstract: An optical lens includes a first lens group with negative refractive power, a second lens group with positive refractive power, and an aperture stop disposed between the first lens group and the second lens group. A total number of lenses in the first lens group is less than three, and a total number of lenses in the second lens group is less than five. The second lens group includes a first lens, a second lens and a third lens arranged in order in a direction away from the aperture stop. Each of the first lens and the second lens is an aspheric lens, and one of the first lens and the second lens has a diffractive optical surface.

    Zoom lens
    20.
    发明授权

    公开(公告)号:US10606046B2

    公开(公告)日:2020-03-31

    申请号:US14804283

    申请日:2015-07-20

    Abstract: A zoom lens arranged along an optical axis includes a first lens group and a second lens group. The second lens group has at least one aspheric lens. The first lens group moves toward an image side and the second lens group moves away from the image side along the optical axis during zooming. The first lens group is moved for focusing, and the second lens group is moved for zooming.

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