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    Optical device for modifying light distribution
    1.
    发明授权
    Optical device for modifying light distribution 有权

    公开(公告)号：US11662082B2

    公开(公告)日：2023-05-30

    申请号：US17601564

    申请日：2020-01-17

    Applicant: LEDIL OY

    Inventor： Olli Saarnio

    IPC: F21V14/06 ,  F21V5/00 ,  F21V7/00 ,  F21V17/02

    CPC classification number: F21V14/06 ,  F21V5/008 ,  F21V7/0091 ,  F21V17/02

    Abstract: An optical device includes first and second optical elements rotatable with respect to each other around a geometric optical axis of the optical device. The first optical element includes a first surface for modifying a distribution of light exiting the first optical element, and the second optical element includes a second surface facing towards the first surface and for further modifying the distribution of the light. One of the first and second surfaces includes convex areas whereas the other one of these surfaces includes concave areas so that an optical effect of the optical device is changeable by rotating the first and second optical elements with respect to each other. The first and second optical elements include sliding surfaces for mechanically supporting the second optical element with respect to first optical element in radial directions perpendicular to the geometric optical axis.

    Light diffuser
    2.
    外观设计
    Light diffuser 有权

    公开(公告)号：USD1020056S1

    公开(公告)日：2024-03-26

    申请号：US29789809

    申请日：2021-10-19

    Applicant: Ledil Oy

    Designer： Olli Saarnio

    Abstract: FIG. 1 is a top perspective view of a light diffuser showing the new design;
    FIG. 2 is a bottom perspective view thereof;
    FIG. 3 is a top plan view thereof;
    FIG. 4 is a bottom plan view thereof; and,
    FIG. 5 is a side elevation view thereof.
    The portions of the light diffuser shown in dash-dash broken lines form no part of the claim.
    The dash-dot-dash broken lines define the bounds of the design and form no part thereof.

    Device for modifying light distribution
    3.
    发明授权
    Device for modifying light distribution 有权

    公开(公告)号：US10760770B2

    公开(公告)日：2020-09-01

    申请号：US16473232

    申请日：2017-12-19

    Applicant: LEDIL OY

    Inventor： Olli Saarnio

    IPC: F21V7/24 ,  F21V5/04 ,  F21V7/00 ,  F21Y115/10

    Abstract: A device for modifying light distribution includes a transparent body including a first surface, a second surface on an opposite side of the transparent body, and a third surface joining the first surface. The second surface defines a cavity opening away from the first surface. The second surface reflects, towards the third surface, at least a part of light received via the first surface. The third surface reflects, towards the second surface, the light reflected from the second surface. The second surface acts as a light egress surface for the light reflected from the third surface. The third surface includes a groove so that a part of the light reflected from the second surface propagates across the groove prior to being reflected from the third surface. The light distribution can be tuned by adjusting the shape, the size, and/or the location of the groove.

    Light diffuser
    4.
    外观设计
    Light diffuser 有权

    公开(公告)号：USD1016375S1

    公开(公告)日：2024-02-27

    申请号：US29789150

    申请日：2021-09-03

    Applicant: Ledil Oy

    Designer： Olli Saarnio

    Abstract: FIG. 1 is a top perspective view of a light diffuser showing the new design;
    FIG. 2 is a bottom perspective view thereof;
    FIG. 3 is a top plan view thereof;
    FIG. 4 is a bottom plan view thereof;
    FIG. 5 is a front elevation view thereof; and,
    FIG. 6 is a side elevation view thereof.
    The portions of the light diffuser shown in broken lines form no part of the claim.

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