Suspended lighting fixture employing shaped light guide illumination devices

    公开(公告)号:US11614576B2

    公开(公告)日:2023-03-28

    申请号:US17206089

    申请日:2021-03-18

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    摘要: A suspended lighting fixture for direct/indirect lighting including a pair of curved sheets which are joined by a linear heat-dissipating structural element and cooperatively forming a trough-shaped structure configured to be suspended with a downward orientation using one or more suspension elements. The lighting fixture further includes a linear light source with one or more linear arrays of light emitting diodes (LEDs) optically coupled to light input edges of the curved sheets, a linear heat-dissipating structural element joining curved sheets, and an opaque elongated housing at least partially enclosing the structural element, light source, and the light input edges.

    Sheet-form solid-state illumination device

    公开(公告)号:US11543578B2

    公开(公告)日:2023-01-03

    申请号:US17214843

    申请日:2021-03-27

    IPC分类号: F21V8/00

    摘要: Wide-area solid-state illumination devices and systems employing a front sheet, a back sheet approximately coextensive with the front sheet, a wide-area light emitting panel positioned between the front and back sheets and one or more strips of a two-sided adhesive tape joining an inner surface of the front sheet with an inner surface of the back sheet along one or more perimeter edges so as to form a thin and hollow sheet-form structure having a generally uniform thickness and at least partially enclosing the wide-area light emitting panel. The wide-area light emitting panel includes one or more solid-state light sources and has a total area which is less than total areas of each of the front and back sheets. The two-sided adhesive tape is configured at a thickness that is approximately equal to or greater than a total thickness of the wide-area light emitting structure. The wide-area light emitting structure may include a planar light guide and one or more LEDs optically coupled to the light guide.

    METHOD OF MAKING LIGHT DIRECTING STRUCTURES

    公开(公告)号:US20220034479A1

    公开(公告)日:2022-02-03

    申请号:US17502036

    申请日:2021-10-14

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    IPC分类号: F21V5/02 G02B5/02 F21V8/00

    摘要: A method of making light directing structures using a prismatic optical film and a low-refractive index resin. The prismatic optical film has a plurality of linear refractive prisms formed in its surface. The prisms extend parallel to one another and define a series of refractive walls. The resin is applied to the prism-carrying surface of the film so as to form a generally uniform optical layer. The resin may be further cured to a solid form to form a monolithic layered light bending structure incorporating an embedded corrugated optical interface with a stepped change in a refractive index and having generally smooth outer surfaces.

    SUSPENDED LIGHTING FIXTURE EMPLOYING SHAPED LIGHT GUIDE ILLUMINATION DEVICES

    公开(公告)号:US20210208325A1

    公开(公告)日:2021-07-08

    申请号:US17206089

    申请日:2021-03-18

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    IPC分类号: F21V8/00 G09F13/02 G09F13/18

    摘要: A suspended lighting fixture for direct/indirect lighting including a pair of curved sheets which are joined by a linear heat-dissipating structural element and cooperatively forming a trough-shaped structure configured to be suspended with a downward orientation using one or more suspension elements. The lighting fixture further includes a linear light source with one or more linear arrays of light emitting diodes (LEDs) optically coupled to light input edges of the curved sheets, a linear heat-dissipating structural element joining curved sheets, and an opaque elongated housing at least partially enclosing the structural element, light source, and the light input edges.

    DAYLIGHT RESPONSIVE LED LIGHTING FIXTURE WITH DIMMING AND COLOR TEMPERATURE CONTROL

    公开(公告)号:US20210149104A1

    公开(公告)日:2021-05-20

    申请号:US17128105

    申请日:2020-12-19

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    IPC分类号: F21V8/00

    摘要: A daylight responsive lighting fixture employing two or more groups of light emitting diodes (LEDs) configured to emit light in different color temperatures, an optically transmissive light distribution sheet, and an LED driver electrically connected to the LEDs and having two or more LED intensity control channels and one or more pulse width modulation (PWM) circuits. The LED driver is configured to independently control the light output from the LED groups so as to vary the color temperature of the lighting fixture and to provide dimming of the LEDs in response to a change of the intensity of natural daylight incident onto an area of the lighting fixture.

    Wide-area solid-state illumination devices and systems

    公开(公告)号:US10962701B2

    公开(公告)日:2021-03-30

    申请号:US16840382

    申请日:2020-04-04

    IPC分类号: F21V8/00

    摘要: Wide-area solid-state illumination devices and systems employing a light guide formed by a sheet of an optically transmissive material and selectively patterned in designated areas. Printed light extraction features are used to form a plurality of patterned areas are separated from each other and from edges of the light guide by separation areas which are generally free from the light extraction features. One or more light emitting diodes (LEDs) is optically coupled to the light guide and provides a light source. The light guide is sandwiched between a front sheet and a reflective back sheet. The front sheet includes opaque areas and a plurality of optically transmissive areas disposed in registration with the patterned areas.

    Suspended lighting fixtures employing shaped light guide illumination devices

    公开(公告)号:US10955604B2

    公开(公告)日:2021-03-23

    申请号:US16276602

    申请日:2019-02-14

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    摘要: A suspended lighting fixture for direct/indirect lighting having a broad light emitting surface and including a thin curved sheet of an optically transmissive material, an LED strip optically coupled to a light input edge of the curved sheet, one or more suspension elements, an elongated heat dissipating structural element longitudinally extending along the light input edge, and an opaque elongated housing at least partially enclosing the LED strip. The curved sheet may include forward-deflecting or forward-scattering elements distributed over an area of the curved sheet according to a two-dimensional pattern and configured to extract light from one location of the sheet and direct the extracted light toward a second location of the sheet.

    Light trapping optical structure
    89.
    发明授权

    公开(公告)号:US10797191B2

    公开(公告)日:2020-10-06

    申请号:US15584727

    申请日:2017-05-02

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    摘要: A light trapping optical structure employing an optically transmissive layer with a plurality of light deflecting elements. The transparent layer is defined by opposing broad-area surfaces extending parallel to each other. The light deflecting elements deflect light propagating transversely through the optically transmissive layer at a sufficiently high bend angle with respect to a surface normal, above a critical angle of a Total Internal Reflection. The deflected light is retained by means of at least TIR in the system which allows for longer light propagation paths through a photoabsorptive layer that may be associated with the optically transmissive layer for an improved light absorption. The light trapping optical structure may further employ a focusing array of light collectors being pairwise associated with the respective light deflecting elements.

    LIGHT CONVERTING SYSTEM EMPLOYING PLANAR LIGHT TRAPPING AND LIGHT ABSORBING STRUCTURES

    公开(公告)号:US20200028015A1

    公开(公告)日:2020-01-23

    申请号:US16585550

    申请日:2019-09-27

    申请人: Sergiy Vasylyev

    发明人: Sergiy Vasylyev

    摘要: A light converting optical system employing a planar light trapping optical structure illuminated by a source of monochromatic light. The light trapping optical structure includes a photoresponsive layer including quantum dots. The photoresponsive layer is configured at a relatively low thickness and located between opposing broad-area reflective surfaces that confine and redistribute light within the light trapping structure, causing multiple transverse propagation of light through the photoresponsive layer and enhanced absorption and light conversion. The light trapping optical structure further incorporates optical elements located on a light path between the light source and the photoresponsive layer.