4060results about "Light guides for lighting systems" patented technology

The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element to move relative to the fixed portion in a second moving dimension, and the first moving dimension and the second moving dimension are different.

A light system includes a housing and a lighting assembly. The housing includes a first cap, a second cap, and a lens arranged between the first cap and the second cap to form a periphery of the housing. The lighting assembly is arranged proximate to the first cap and includes a plurality of lighting elements configured to emit light toward the second cap. The lens includes a waveguide having a reflecting surface that is non-planar and that is configured to receive the light emitted by the plurality of lighting elements and direct the light toward the periphery of the housing.

A lighting device disclosed in an embodiment of the invention comprises a substrate; a light source disposed on the substrate; and a light guide member disposed on the substrate and the light source, wherein the light guide member includes an exit surface and a first reflective surface facing the exit surface, the first reflective surface includes a plurality of reflective portions having different heights with respect to an upper surface of the substrate, and each of the plurality of reflective portions may include a plurality of first surfaces inclined with respect to the upper surface of the substrate.

A lighting keyboard is provided with at least one keyswitch, a support plate and a backlight module. The keyswitch has a keycap and a switch under the keycap. The support plate connects beneath the keycap by a support mechanism. The backlight module has a lighting board configured underneath the support plate and corresponding to the keycap. The lighting board includes a board, a first reflective layer and a circuit layer. The circuit layer is disposed on the board and includes a concave-convex structure and circuit traces. The circuit traces electrically connects with a light emitting unit. The first reflective layer covers the concave-convex structure to form microstructure regions.

A lighting board for supporting at least one keycap is provided. The lighting board includes a substrate having an insulation surface, a plurality of openings penetrating through the substrate, and a plurality of coupling members disposed on the substrate and configured to directly or indirectly connect the at least one keycap, a lighting circuit disposed on the insulation surface at a side opposite to the coupling members, an illuminant electrically connected to the lighting circuit, and a protective layer disposed on the insulation surface and covering the lighting circuit.

An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the guiding element to move for moving the first blade. The optical axis passes through the through hole. The first surface has a first accommodating space having a recessed structure to accommodate the guiding element, and the protrusion extends toward the first blade.

A lighting device disclosed in an embodiment of the invention comprises a substrate; a light source disposed on the substrate; and a light guide member disposed on the substrate and the light source, wherein the light guide member includes an exit surface and a first reflective surface facing the exit surface, the first reflective surface includes a plurality of reflective portions having different heights with respect to an upper surface of the substrate, and each of the plurality of reflective portions may include a plurality of first surfaces inclined with respect to the upper surface of the substrate.

A lighting device (2), in particular for a motor vehicle, is provided, comprising: at least one first segment (100) for the visible display of at least one first ornament (104), and at least one second segment (200a-b) for the visible display of a plurality of second ornaments (204#1-n).

Disclosed is a vehicle display device. The vehicle display device includes a display panel including a liquid crystal layer a backlight unit configured to emit light to the display panel, and a controller, wherein the backlight unit includes a first light guide panel, a first light source configured to emit light to the first light guide panel, a second light guide panel disposed adjacent to the display panel, a second light source configured to emit light to the second light guide panel, and a light adjustment film including a plurality of absorption patterns made of a material absorbing light, and disposed between the first light guide panel and the second light guide panel, and the controller is configured to determine a first restricted region of the display panel based on a first condition related to driving of a vehicle, determine a second restricted region of the display panel based on a second condition related to private matter, and control the first light source and the second light source so that a viewing angle for each of the first restricted region and the second restricted region is changed. Various other embodiments are possible.

A backlight module for a lighting keyboard having a specific function key comprises a lighting board, a light guide panel and a shielding sheet. The shielding sheet, the light guide panel and the lighting board are stacked from top to bottom. The lighting board has first and second light emitting units. The light guide panel has first and second light guide holes. The first light emitting unit is in the first light guide hole. The second light emitting unit is in the second light guide hole. The shielding sheet has a blocking portion. The blocking portion overlaps in projection with the first light emitting unit and the second light emitting unit. The light guide panel has a light guide panel slot. The light guide panel slot overlaps in projection with the blocking portion and a boundary of a keycap projection area of the specific function key.

A transmission coating for a waveguide is formed with multiple layers. There are steps of a) determining a first coating parameter and a coating function for each layer -3000, b) forming the multiple

A method of forming an optical device is provided that can include forming a backside reflector layer, and forming a cladding layer on the backside reflector layer. The method can further include forming a grating layer on the cladding layer, and forming a receiving reflector layer on the cladding layer. The receiving reflector layer can include an opening for receiving optical signal to at least the grating layer.

The light guide structure comprises a light guide plate, the light guide plate is provided with a light reflecting cambered surface, a light emitting surface and a light incoming surface, the light reflecting cambered surface and the light emitting surface are located on the two sides of the light guide plate respectively and are oppositely arranged, the light incoming surface is located on the upper portion of the light guide plate, and the light reflecting cambered surface is gradually bent towards the light emitting surface from top to bottom. The light-emitting face is a plane, and the light guide plate is made of light-transmitting materials. According to the utility model, brand new light distribution design is carried out on an original light path, the light emitting direction is optimized, brand new light distribution is carried out by adopting light guide and total reflection, the light is conducted according to a specified direction, finally, light rays irradiated from a light inlet surface can be uniformly irradiated out from a light outlet surface, the structure is simple, and the effect is remarkable.

An LED filament lamp emits lamp light of a third correlated color temperature, CCT3. An LED filament light source emits LED filament light of a first correlated color temperature, CCT1, of a first light intensity, I1, and a first luminous flux, LF1. A transparent envelope at least partly encloses the LED filament light source. A further LED light source provides further LED light of a second correlated color temperature, CCT2, a second light intensity, I2, and a second luminous flux, LF2. The further LED light source provides the further LED light to the envelope. The envelope is a light emitting structure configured to emit the further LED light and to transmit the LED filament light. The lamp light thus comprises one or more of the LED filament light and the further LED light and CCT1≤2500K, 8000K≥CCT2≥3500K and 2≥LF1 / LF2≥0.5, wherein CCT1, CCT2 and LF1 / LF2 are chosen such that 3400K≥CCT3≥2600K.

The invention provides an indicator light device and network communication equipment. The indicating lamp device comprises a plastic structural part and a lamp panel, and the plastic structural part is fixedly connected with the lamp panel. Specifically, the plastic structural part is a structural part integrally formed by a plurality of light guide structures and a plastic main body, and the light guide structures are used for transmitting light emitted by a plurality of LEDs on the lamp panel to the first surface of the plastic main body to be emitted. The lamp panel comprises a printed circuit board (PCB), a plurality of LEDs arranged on the first surface of the PCB and a lamp panel base arranged on the second surface of the PCB, and the lamp panel base is electrically connected with the single board through a cable. The size of the indicating lamp device can be flexibly designed according to application requirements, and small-size indicating lamp layout can be achieved.

An electronic device may include a display with a waveguide and a surface relief grating (SRG) on the waveguide. The SRG may direct image light towards an eye box. An optical blocker may at least partially overlap the SRG. The blocker may include a first optical wedge having a curved surface and a second optical wedge separated from the curved surface by an air gap or a low refractive index material. The curved surface may have a freeform shape that configures the first optical wedge to propagate world light incident upon the blocker within a selected range of incident angles away from the SRG via total internal reflection. The blocker may transmit world light at other incident angles to the eye box through the waveguide. This may allow the blocker to block high incident angle world light from reaching the SRG and producing unsightly rainbow artifacts at the eye box.

An anamorphic directional illumination device may provide a near-eye display apparatus or a vehicle external light device. The anamorphic near-eye display apparatus comprises a spatial light modulator with asymmetric pixels; an input transverse anamorphic lens; and an extraction waveguide that passes input light in a first direction between a polarization-sensitive reflector and front guide surface to a lateral anamorphic reflector, and to reflect the light back through the extraction waveguide to guide between the rear guide surface and front guide surface. Reflective extraction features are arranged to extract the reflected light towards the pupil of a viewer, maintaining the directionality of the fan of light rays from the spatial light modulator and anamorphic imaging system. A thin, transparent and efficient anamorphic display apparatus for Augmented Reality and Virtual Reality displays and for scene illumination is provided.

The invention relates to the technical field of lighting lamps, in particular to a rhythm sky lamp. The rhythm sky lamp comprises a shell body, a blue sky module, a lighting module and a control module. A first cavity and a second cavity which are independent from each other are formed in the shell body, and the blue sky module is arranged in the first cavity; the blue sky module comprises a mixed light source and a scattering light guide plate, the mixed light source faces the side face of the scattering light guide plate, the light-emitting face of the scattering light guide plate faces the first cavity, and the mixed light source is suitable for irradiating light of different colors to the scattering light guide plate. The lighting module is rotationally arranged in the second cavity, and the light path of the lighting module deviates from the first cavity. The control module is connected with the blue sky module and the illumination module. By adopting the method, the sky effects of multiple time periods can be presented according to the rhythm time efficiency, and the diversity and authenticity of the sky effect simulated by the rhythm sky lamp are improved.

A front light module includes a light guide sheet and a light bar. The light guide sheet has two light receiving laterals, a fold line, a first pattern area, and a second pattern area respectively located on two sides of the fold line. One light receiving lateral is protruded to form first taper sets, and the other is protruded to form second taper sets. The second pattern area is superimposed on the first pattern area, and the first and second tapers set are engaged and coplanar to form a light incident surface after folding along the fold line. The light bar provides light toward the light incident surface, the first pattern area is lit by the odd positions of the light bar via the first taper sets, and the second pattern area is lit by the even positions of the light bar via the second taper sets.

An illuminated indicator for a doorbell can be arranged to receive light along an optical axis (e.g., that is perpendicular to a front face of the doorbell housing) and emit the light from an output portion that defines a closed loop (e.g., that extends around the optical axis) and in a direction that is parallel to the optical axis. The illuminated indicator can include a light pipe that receives light along the optical axis and reflects the light to follow a radially outward and divergent path, e.g., that is perpendicular to the optical axis. The radially outward and divergent light can be reflected to follow a path that is parallel to the optical axis for emission at an output portion of the light pipe. The light pipe can be configured to transmit a doorbell switch activation force to other parts of the doorbell to cause actuation of the switch.

A lighting apparatus includes a light source, a main body, a plurality of connecting sheets and a mounting frame. The light source is installed in the main body. An interior of the main body includes a fans assembly. A plurality of connecting sheets are disposed at a bottom portion of the main body. Each connecting sheet of the plurality of connecting sheets includes a first end mounted on a side wall of the main body and a second end extending in a direction away from the main body. The mounting frame is disposed below the main body for supporting and fixing the main body. The mounting frame includes a plurality of mounting slots. The plurality of mounting slots are positioned to match positions of the plurality of connecting sheets.

The invention belongs to the technical field of agricultural light supplement, and particularly relates to an agricultural light supplement lamp system and method based on optical fiber transmission and fluorescence conversion. Efficient light distribution from a single light source to multiple application terminals is achieved, and the proportion of blue light to red light can be flexibly adjusted according to the photosynthesis requirements of crops. In addition, the optical shaping system arranged behind the application tail end ensures that the light can be accurately irradiated on the target crop, so that the light utilization rate and the energy conversion efficiency are greatly improved. Through the technical innovation, the wiring design is simplified, the complexity and the cost of the system are reduced, and the effectiveness of photosynthesis and the growth quality of crops are remarkably improved.

The invention relates to the technical field of illumination optical fiber manufacturing, in particular to a photoelectric separation safety illumination line, a preparation method thereof and an illumination system. The optical fiber comprises a core layer, a wrapping layer and a protective layer, the wrapping layer is coated on the outer surface of the core layer and adopts a resin coating layer, and the protective layer is arranged on the outer surface of the wrapping layer; the photoelectric separation lighting line which is low in energy consumption, safe, reliable and high in lighting brightness is provided, through the photoelectric separation design, optical fibers are connected to LED lamp beads, optical signals are received, safety and environmental protection are achieved, environmental protection is achieved, no electric spark is generated, no electromagnetic interference is generated, no heat is generated, and therefore the surrounding environment cannot be affected; potential safety hazards are avoided; wireless energy transmission between the power supply module and the light source is realized by adopting a magnetic resonance coupling or electromagnetic induction technology, so that the electric shock risk caused by traditional wire connection is eliminated, and the safety of installation and use is improved.

The utility model relates to the technical field of decorative lamps, in particular to a hanging LED light-emitting lantern which comprises an upper fixing plate, a lower fixing plate, an inner support and a plurality of outer supports. The inner support is located in the lantern and connected with the upper fixing plate and the lower fixing plate, and an LED lamp panel is installed on the inner support. The outer supports are arranged around the upper fixing plate and the lower fixing plate in the circumferential direction, every two adjacent outer supports are connected with each other, the upper ends of the outer supports are connected with the upper fixing plate, and the lower ends of the outer supports are connected with the lower fixing plate. Each outer support is provided with a light guide plate so as to form an outer lampshade of the lantern, each light guide plate is provided with a frosted structure, the frosted structures are formed on the surfaces of the light guide plates, the uniformity of light rays is remarkably improved, the soft and non-dazzling lighting effect is created, and the ornamental value and the comfort level of the lantern are increased.

Presented are apparatus, systems and methods for creating tuned color emissions, from lighting and displays, that can be electronically controlled to select a desirable spectrum of wavelengths safer for human vision, for optimal color reproduction, for energy / brightness efficiency, and more. Apparatus including light emitting chips, materials, package design, electronic control devices and circuits, lights, light-fixtures, display panels, visual computing devices and systems, are disclosed. An embodiment is described which is capable of operating in modes, where eye-safe colors are rendered with minimal harmful wavelengths, as well as at least one mode of operation favoring color rendering, and brightness configurations. An embodiment is operable to deliver a paper-like black-on-white viewing experience, in both night-time and day-time operating modes, with reduced high-energy blue-wavelength light spectra. In one embodiment, the light-emitter, controller, display and system are operable to switch between these modes of operation.

A headphone that can replace multiple components without the need for professional tools includes two headphone bodies, which are connected together through headbands. A sheath is provided on the inner side of the headband facing the headphone body, and the end of the sheath is detachably connected to the headband. The bottom of one headphone body is connected with a power cord and a microphone, and the magnetic suction on the back side of the two headphone bodies is equipped with a decorative cover, The opposite side of the two headphone bodies is buttoned and equipped with earmuff.

The indicator lamp assembly comprises a shell, a lamp source assembly, a convex lens and a light guide column, a light guide cavity is formed in the shell and provided with a light inlet and a light outlet, and the inner diameter of the light guide cavity is gradually increased in the direction from the light inlet to the light outlet. The light source assembly comprises a circuit board fixed to the shell and a light source installed on the circuit board, the convex lens is fixed to the shell and arranged at the light outlet, the light guide column is fixed to the shell and located between the light source and the convex lens, and the light guide column is used for guiding light emitted by the light source to the light inlet. Part of the light is reflected by the cavity wall of the light guide cavity and is emitted to the convex lens. According to the technical scheme, the display effect of the display light spots projected by the indicator lamp assembly on the ground can be effectively improved, and a user can conveniently clarify the use state of the dish washing machine through the display light spots.

A light-emitting module includes a light-blocking sheet and a light guide sheet that are arranged on a circuit board. The circuit board includes a light-emitting element. The light-blocking sheet has a hollow portion and a light-blocking portion. The light guide sheet is arranged in the hollow portion, and has a light incident portion and a light guide portion, where the light incident portion includes a first side surface, a second side surface, and a third side surface, the first side surface is adjacent to the light-emitting element, the second side surface and the third side surface are separately connected to the first side surface, the angle formed between the second side surface and third side surface, the angle is smaller than a light-emitting angle of the first light-emitting element, and the light-blocking portion is arranged adjacent to the second side surface or the third side surface.

A surface light source module includes a light guide plate, a light source component, a covering layer, and an optical adhesive layer. The light guide plate has a first surface, a second surface, and a light incident surface. The first surface has multiple microstructures. The optical adhesive layer is disposed between the light guide plate and the covering layer. Each microstructure has a symmetry plane and a first structural surface. The interface between the first structural surface and the symmetry plane has a first intersection line. The first intersection line includes a first-part line segment, a second-part line segment, and a third-part line segment. A third included angle between the third-part line segment and the first surface is 50-90 degrees. A third length of the third-part line segment is greater than or equal to 5% of the total length of the first intersection line.