F21V7/0041

Illumination devices including multiple light emitting elements

A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

LINEAR LED MODULE AND BACKLIGHT UNIT INCLUDING THE SAME

The present disclosure discloses a linear LED module including: at least one LED bar including multiple LEDs arrayed on a substrate in a lengthwise direction of the substrate; a mounting portion in which the at least one LED bar is mounted on its mounting surface in the lengthwise direction; and a composite reflective portion integrated with the mounting portion and adapted to reflect light emitted from the at least one LED bar. A cross-section of the composite reflective portion includes a curved reflective surface adjacent to the mounting portion and a straight reflective surface extending away from a boundary with the mounting portion. Also disclosed is a backlight unit including the linear LED module. The backlight unit includes a rear case arranged in rear of a display panel, a reflective sheet positioned in rear of the display panel in the rear case, and a linear LED module.

MEDICAL LIGHTING DEVICE, SYSTEM FOR FLUORESCENCE IMAGE GUIDED SURGERY AND METHOD TO MANUFACTURE A MEDICAL LIGHTING DEVICE
20230181281 · 2023-06-15 · ·

A medical lighting device, a system for fluorescence image guided surgery and a method to manufacture a medical lighting device are provided. The medical lighting device includes a device body and light guiding optics. The light guiding optics comprise optical fibers and a first ring-shaped mirror encircling the device body. A segment of each optical fiber passes through the first ring-shaped mirror while being guided towards the distal end. After passing through the first ring-shaped mirror, a light guiding element redirects one or more of excitation light and white light ack towards the first ring-shaped mirror. The first ring-shaped mirror reflects the one or more of the emitted excitation light and the white light towards the area to be illuminated by the one or more of the excitation light and the white light.

Lighting apparatus
09739447 · 2017-08-22 · ·

A lighting apparatus includes: a plurality of light sources; a first frame including a first reflection surface disposed inside of the light sources, the first reflection surface reflecting, in a forward direction, light emitted from the light sources; a second frame including a visor portion covering fronts of the light sources; and a diffuser disposed in front of a front surface of the visor portion with a distance left between the diffuser and at least a part of the front surface of the visor portion.

Trim element comprising two independent backlit areas

A trim element having a coating layer defining an outer surface and an inner surface, the coating layer including at least two distinct backlit pattern areas separated by at least one opaque area preventing the passage of light from the inner surface to the outer surface. The trim element includes at least one light source for each backlit pattern area, the light source being fixed on the inner surface of the coating layer facing an opaque area while being spaced apart from the corresponding backlit pattern area. The trim element has one light guide per backlit pattern area.

LED lighting apparatus
09810399 · 2017-11-07 · ·

An LED lighting apparatus is provided. The LED lighting apparatus includes a case part which covers a residual part, excluding a light-emitting surface, to provide a reflective space and has a predetermined depth and in which an upper edge of the inside thereof has a slope. Further, a receiving surface has a lateral surface portion of the case part that is bent toward the inside of the case. A substrate is fixed on the receiving surface and a plurality of LEDs are provided. A reflective part located in an upper center portion of the inside of the case part reflects the light of the LEDs and enables reflection and diffusion of light within the reflective space provided from the case part.

BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS
20170261769 · 2017-09-14 ·

A backlight device including an optical sheet diffusing and outputting light from a light guide plate, a frame member having an opening corresponding to a light output surface of the light guide plate, the frame member being provided between the light guide plate and the optical sheet to secure a positional relationship therebetween. The device also includes a plurality of securing members provided at a peripheral edge of the frame member, which secure the optical sheet, are each coupled with the frame member via a thin hinge, and each include a pressing portion having a hole, where the pressing portion presses the optical sheet to the frame member. The frame member is provided with protrusions respectively fit into the holes. The optical sheet includes perforations, and the protrusions are inserted through the perforations and fit into the holes, and the pressing portions press the optical sheet to the frame member.

SPOT LIGHTING APPARATUS

A spot lighting apparatus includes a first reflection unit, a semiconductor light emitting device, a second reflection unit being provided on an optical axis of the semiconductor light emitting device, and a fixing unit fixing the second reflection unit to be separated from the semiconductor light emitting device, wherein the second reflection unit receives a part of a light released from the semiconductor light emitting device and reflects it toward the first reflection unit, the first reflection unit receives a part of a light released from the semiconductor light emitting device and all or a part of a light reflected on the second reflection unit and reflects them toward the opening part, and the light reflected on the first reflection unit and emitted from the opening part is 80% or more of total lights emitted from the opening part.

Method and means for reflecting light to produce soft indirect illumination while avoiding scattering enclosures
20170254507 · 2017-09-07 ·

A HubblePerkinElmer correcting mirror for luminaries intended to illuminate a room, where the luminaries may send direct bright light towards directions that are inconvenient. Similarly to its space telescope device, the HubblePerkinElmer correcting mirror redirects the emitted light to other directions that are more advantageous for illumination, particularly to avoid direct bright light onto the eyes of humans in the space.

Luminaire for generating direct lighting and indirect lighting

A luminaire comprises a first light exit opening for emitting light from at least two light sources. A diffusely-reflecting first reflector portion is arranged on an inner side of a luminaire body. A first light source is arranged in an edge portion of the luminaire body surrounding the first light exit opening. First light beams of the first light source are deflected towards the first reflector portion by a second reflector portion, so that said beams exit through the first light exit opening as a diffusely-reflected first light beam bundle. A second light source generates a second light beam bundle. The first light beams exit the luminaire body exclusively as first light beams reflected at the first reflector portion. A second light exit opening is surrounded by the first reflector portion. A second aperture angle of the second light beam bundle is smaller than the first aperture angle.