公开(公告)号：US09235054B2

公开(公告)日：2016-01-12

申请号：US13792312

申请日：2013-03-11

Applicant: Ledil Oy

Inventor： Hannu Hukkanen

IPC: G02B27/10

CPC classification number: G02B27/1006

Abstract: The present invention provides an optical surface which is able to mix different wavelengths into a light pattern which contains all wavelengths evenly distributed across the pattern. The novel optical surface extends in at least two Cartesian base dimensions (X, Y), whereby a cross-section of the surface taken in either of said two Cartesian base dimensions (X, Y) features a first plurality of protuberances which extend to the same direction in a third Cartesian dimension (Z). The cross-section of the optical surface also features a second plurality of protuberances which extend to the opposite direction as the first plurality of protuberances in the third Cartesian dimension (Z). The pluralities of protuberances form converging and diverging optical shapes for mixing different wavelengths scattering from the optical surface.

Abstract translation: 本发明提供一种光学表面，其能够将不同波长混合成包含均匀分布在图案上的所有波长的光图案。 新颖的光学表面以至少两个笛卡尔基座尺寸（X，Y）延伸，由此在所述两个笛卡尔基座尺寸（X，Y）中的任何一个中截取的表面的横截面具有第一多个突起，其延伸到 第三个笛卡尔维度（Z）的方向相同。 光学表面的横截面还具有第二多个突起，其延伸到与第三笛卡尔尺寸（Z）中的第一多个突起相反的方向。 多个突起形成会聚和发散的光学形状，用于混合从光学表面散射的不同波长。

公开(公告)号：USD1067500S1

公开(公告)日：2025-03-18

申请号：US29868980

申请日：2022-12-19

Applicant: Ledil Oy

Designer： Oskari Savin

公开(公告)号：US12181145B2

公开(公告)日：2024-12-31

申请号：US18263493

申请日：2022-01-03

Applicant: LEDIL OY

Inventor： Olli-Pekka Laakkio ,  Joel Jones ,  Veijo Isojunno

IPC: F21V5/02 ,  F21S4/24 ,  F21S8/04 ,  F21V15/01 ,  F21Y103/10 ,  F21Y115/10

Abstract: An optical device for modifying a light distribution is made of transparent material and includes a front wall constituting a front portion, a coupling portion for connecting to a light source system, and side walls between the coupling portion and the front portion. The front wall is configured to let through a first part of light emitted by the light source, and the side walls are configured to let through a second part of the light. The side walls have grooves that refract at least 80% of the second part of the light obliquely rearwards with respect to a direction from the coupling portion to the front portion. Thus, the optical device can be used for illuminating both a floor and a ceiling so that light emitted to unwanted directions and potentially causing glare can be kept at a low level.

公开(公告)号：USD1053430S1

公开(公告)日：2024-12-03

申请号：US29754079

申请日：2020-10-06

Applicant: LEDIL OY

Designer： Yrjö Matikainen

公开(公告)号：USD1016372S1

公开(公告)日：2024-02-27

申请号：US29788332

申请日：2021-05-05

Applicant: Ledil Oy

Designer： Antti Siironen

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 broken lines form no part of the claim.

公开(公告)号：USD1013250S1

公开(公告)日：2024-01-30

申请号：US29774126

申请日：2021-03-15

Applicant: Ledil Oy

Designer： Joel Jones

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 broken lines form no part of the claim.

公开(公告)号：USD1001349S1

公开(公告)日：2023-10-10

申请号：US29729223

申请日：2020-03-25

Applicant: Ledil Oy

Designer： Palm Joni

Abstract: FIG. 1 is a front, left side, and top perspective view of a Light Diffuser showing the new design;
FIG. 2 is a front, right side, and 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 view thereof; and
FIG. 6 is a side elevation view thereof.
The dash-dot lines immediately adjacent to the claim depict the bounds of the claimed design, while all other broken lines are directed to environment. The broken lines form no part of the claimed design.

公开(公告)号：USD999437S1

公开(公告)日：2023-09-19

申请号：US29729062

申请日：2020-03-24

Applicant: Ledil Oy

Designer： Olli Sipilä

Abstract: FIG. 1 is a front, left side, and top perspective view of a Light Diffuser showing the new design;
FIG. 2 is a front, right side, and bottom perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view thereof; and
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings illustrate portions of the Light Diffuser that form no part of the claimed design.

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.

公开(公告)号：US11555989B2

公开(公告)日：2023-01-17

申请号：US17297648

申请日：2019-10-24

Applicant: LEDIL OY

Inventor： Yrjö-Sakari Matikainen

IPC: G02B19/00 ,  F21V7/09 ,  G02B5/30 ,  F21Y115/10

Abstract: An optical device includes a reflector-section that includes a light-ingress surface for receiving light from a light source, a reflector surface for reflecting the light based on total internal reflection, and a light-egress surface through which the reflected light exits the optical device. When the light source is at a predetermined position with respect to the optical device, an angle of incidence (θi) of the light at the light-egress surface is a polarization angle at which a p-polarized component of the light is transmitted through the light-egress surface without being reflected by the light-egress surface. Thus, unwanted reflections at the light-egress surface can be reduced and thereby unwanted scattering of light is reduced while having good transmitting efficacy.