Light emitting device
    2.
    发明授权

    公开(公告)号:US12111048B2

    公开(公告)日:2024-10-08

    申请号:US18271199

    申请日:2022-01-06

    摘要: A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting light (7, 9), at least one free-shape refractive lens element (3) configured to aim light (7) emitted by the at least one light source (2) in a first direction towards a surface (22) to be illuminated by the light emitting device (1), the lens element (3) comprising a first end (11) adapted for facing in a direction towards the surface (22) and a second end (20) adapted for facing in a direction away from the surface (22), at least one first TIR element (4), the first TIR element (4) being a collimating TIR element configured to collimate and redirect light (9) emitted from the at least one light source (2) in a second direction away from the surface (22) into light (9′) propagating parallel and in a downward direction, the first TIR element (4) comprising a light incoupling surface (19) and a light outcoupling surface (13), the light incoupling surface (19) being arranged at the second end (20) of the lens element (3), and at least one second TIR element (5) configured to redirect light (9′) redirected by the first TIR element (4) into light (9″) propagating in a direction towards the surface (22) and comprising an intensity distribution with two intensity peaks at wide angles that are aligned with the intensity peaks of light (7′) aimed by the lens element (3), the at least one second TIR element (5) being arranged at the light outcoupling surface (13) of the first TIR element (4).

    Total internal reflection lens
    3.
    发明授权

    公开(公告)号:US12078340B2

    公开(公告)日:2024-09-03

    申请号:US18035542

    申请日:2021-11-04

    发明人: Orestes Orbe

    IPC分类号: F21V7/00 F21V5/04 G02B19/00

    摘要: An asymmetric total internal reflector (TIR) lens and a luminaire including a plurality of asymmetric TIR lenses designed to provide increased control on spill light and produce asymmetric distribution within each TIR lens and that does not require a secondary optic arranged at an exit plane of the TIR lens. The TIR lenses disclosed herein utilize a refractive member having a plurality of portions, each portion includes a middle longitudinal edge, a middle lateral edge; and a middle corner formed between the middle longitudinal edge and the middle lateral edge. The TIR lens also includes a collimator arranged about the refractive member that includes an inner surface configured to receive electromagnetic radiation from the refractive member and reflect or refract it through an exit plane of the TIR lens.

    TOTAL REFLECTION LENS
    9.
    发明公开

    公开(公告)号:US20240110689A1

    公开(公告)日:2024-04-04

    申请号:US18540050

    申请日:2023-12-14

    申请人: Optronia GmbH

    发明人: Ulrich Hausmann

    摘要: A total reflection lens includes a first end surface with a first diameter, and a second end surface parallel to the first end surface and with a second diameter. The second diameter is greater than the first diameter, and the two end surfaces are connected via a convexly curved lateral surface. A recess adjoining the first end surface and pointing in the direction of the second end surface is located between the first end surface and the second end surface. The recess has at least two boundary surface portions, pointing in the direction of the second end surface and separate from one another, for refracting light in the direction of the lateral surface.