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公开(公告)号：US20240288149A1
公开(公告)日：2024-08-29
申请号：US18572713
申请日：2022-06-06
Applicant: LEDIL OY
Inventor： Olli SAARNIO
IPC: F21V14/06 , F21V5/00 , F21V5/04 , F21V7/00 , F21Y115/10
CPC classification number: F21V14/06 , F21V5/008 , F21V5/045 , F21V7/0091 , F21Y2115/10
Abstract: An optical device includes a first optical element and a second optical element moveable with respect to the first optical element. 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. An optical effect of the optical device is changeable by moving the second optical element with respect to the first optical element in a direction parallel with the first surface. The first and second surfaces are shaped to have stepwise shape discontinuities to reduce a spatial room needed between the first and second surfaces.
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公开(公告)号：USD992804S1
公开(公告)日：2023-07-18
申请号：US29758117
申请日：2020-11-12
Applicant: Ledil Oy
Designer： Kim Kaski
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 side elevation view thereof;
FIG. 6 is an enlarged front elevation view thereof;
FIG. 7 is an enlarged view along line 7 as shown in FIG. 1; and,
FIG. 8 is an enlarged view along line 8 as shown in FIG. 2.
The evenly spaced dash-dash broken lines shown in the drawings illustrate portions of the light diffuser that form no part of the claimed design. The dash-dot broken lines depict the boundaries of the enlarged views and form no part thereof.-
公开(公告)号：US20210396980A1
公开(公告)日：2021-12-23
申请号：US17297648
申请日：2019-10-24
Applicant: LEDIL OY
Inventor： Yrjö-Sakari MATIKAINEN
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.
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公开(公告)号：US11036036B2
公开(公告)日：2021-06-15
申请号：US15769751
申请日：2016-10-20
Applicant: Ledil Oy
Inventor： Olli Hakala
Abstract: An optical device for modifying light distribution including a light-ingress surface and a light-egress surface. The light-ingress surface having convex areas and the light-egress surface comprises elevations so that the convex areas are configured to direct light to the elevations. Each elevation is configured to turn at least a part of light directed to the elevation sideward with respect to the height direction of the elevation. The convex areas of the light-ingress surface make it possible to direct the light to the elevations in a controlled way and thus the optical properties of the optical device can be designed more freely than for example in cases where the light-ingress surface is smooth or has depressions corresponding to the elevations so that the material thickness between the light-ingress and light-egress surfaces is constant.
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公开(公告)号：USD900380S1
公开(公告)日：2020-10-27
申请号：US29695448
申请日：2019-06-19
Applicant: Ledil Oy
Designer： Kimmo Harjunpää
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Patent Agency Ranking
公开(公告)号：US10429035B2
公开(公告)日：2019-10-01
申请号：US15744230
申请日：2017-09-13
Applicant: Ledil Oy
Inventor： Hannu Hukkanen , Kimmo Harjunpää
IPC: F21V13/04 , F21V5/04 , F21V5/08 , F21V7/00 , F21V8/00 , G02B19/00 , F21V7/04 , F21W131/103 , F21Y115/10 , B29D11/00
Abstract: An optical device for modifying a light distribution pattern of a light source is presented. The light source radiates first light beams to a first geometric quarter-space and second light beams to a second geometric quarter-space, where the first and second quarter-spaces are defined by mutually perpendicular geometric planes one of which constitutes a boundary between the first and second geometric quarter-spaces. The optical device may include a lens-section for modifying a light distribution pattern of the first light beams and a reflector surface for reflecting at least a part of the second light beams from the second geometric quarter-space to the first geometric quarter-space. The reflector surface is shaped to resemble a wedge that points towards the first geometric quarter-space so as to provide total internal reflection and to direct the reflected second light beams to sideward directions.
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公开(公告)号：US10165676B2
公开(公告)日：2018-12-25
申请号：US15510284
申请日：2015-09-03
Applicant: LEDIL OY
Inventor： Hannu Hukkanen
Abstract: A circuit board system includes a circuit board having a base part (101) and at least one changeable part (102) furnished with at least one electrical component (103) such as a light emitting diode. The base part includes an aperture for receiving the changeable part so that a perpendicular of the changeable part is parallel with a perpendicular of the base part. The aperture is shaped to allow the position of the changeable part to be changed with respect to the base part when the changeable part is in the aperture, and edges of the aperture and the changeable part have mutually cooperative connection portions (105, 106) which allow the changeable part to be introduced on the aperture when the changeable part is in a first position and which limit freedom of the changeable part to get away from the aperture when the changeable part is in a second position.
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公开(公告)号：US09822942B2
公开(公告)日：2017-11-21
申请号：US15034880
申请日：2014-04-24
Applicant: LEDIL OY
Inventor： Hannu Hukkanen
CPC classification number: F21S48/1291 , F21S41/25 , F21S41/27 , F21S41/28 , F21S41/295 , F21S41/336 , F21S41/37 , G02B3/00
Abstract: A low-beam headlight element includes a lens (301) for modifying the distribution pattern of light penetrating the lens, and a reflector element (302) including a first end having a place for a light source (303) and a second end having an opening constituting a passage for the light penetrating the lens. The thickness of the lens is shaped to decrease more strongly towards a first edge (303) of the lens than towards an opposite second edge of lens so as to provide more refractivity on a first area of the lens abutting on the first edge than on a second area of the lens abutting on the second edge. The refractivity on the first area produces a cutoff line in a resulting light distribution pattern. Hence, for achieving a cutoff line meandering in a desired way, there is no need for a screen element which converts light into heat.
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公开(公告)号：US20160116723A1
公开(公告)日：2016-04-28
申请号：US14891481
申请日：2014-03-04
Applicant: LEDIL OY
Inventor： Hannu HUKKANEN
CPC classification number: G02B17/086 , F21V5/045 , F21V7/0091 , F21V7/22 , G02B3/08 , G02B5/021 , G02B6/0016 , G02B6/0043 , G02B19/0061
Abstract: A light guide (201) including a transparent element is presented. The transparent element includes a first surface (203) for acting as a light-ingress surface and a second surface (204) for acting as a light-egress surface. The second surface includes elevations (205) for directing a part of the light into directions sideward with respect to a direction in which another and greater part of the light exits the transparent element through the second surface. Each elevation is shaped to provide total internal reflection for a light beam on a first point of the surface of the elevation and refract the reflected light beam on a second point of the surface of the elevation so as to direct the light beam sideward. The sideward directed light enables an observer, who sees the light guide from a small viewing angle, to easily see whether the light is on or off.
Abstract translation: 提供了包括透明元件的导光体（201）。 透明元件包括用作光入射表面的第一表面（203）和用作光出射表面的第二表面（204）。 第二表面包括用于将一部分光引导到相对于另一和更大部分光通过第二表面离开透明元件的方向的侧向的方向的高度（205）。 每个高度被成形为在高度表面的第一点处为光束提供全内反射，并将反射的光束折射到高度表面的第二点上，以将光束向侧面引导。 侧向引导的光使得能够从小视角看到光导的观察者容易地看到光是否打开或关闭。
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公开(公告)号：USD748848S1
公开(公告)日：2016-02-02
申请号：US29465668
申请日：2013-08-30
Applicant: Ledil Oy
Designer： Petri Laukkanen
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