LED Glare Prevention for Safe Illumination

An LED lighting system that provides efficient, glare-free illumination with adjustable color and directionality to replace fluorescent tubes. The system uses multiple LEDs mounted on a transparent support structure. Reflectors redirect light emitted in undesirable directions toward the desired illumination direction. Phosphors on the support structure homogenize the LED colors for a consistent appearance.

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A light guide and a light guide structure for electronic devices that improves the matching of LED lights with the light guide to eliminate bright spots and shadows. The light guide has a reflector fixed to the LED source that covers the light inlet and directs the light into the guide. This prevents direct LED light from shining through the device surface. The light guide structure has a housing with a light transmission hole. The LED and reflector are inside the housing. The reflector's light outlet faces the transmission hole to guide the light through the hole instead of directly from the LED. This eliminates bright spots and shadows on the device surface.

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An LED downlight fixture with anti-glare features. The fixture includes a housing with an anti-glare cup that blocks direct light from the LED source and reflects it downward. This prevents the LED light from shining directly into people's eyes.

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Light guide assembly for uniformly illuminating the surface of a diffuser sheet in LED lighting applications. The assembly consists of a light guide sheet attached to one end of a diffuser sheet, with a reflective layer on the upper end of the light guide sheet. This design ensures uniform light emission from the diffuser sheet by using the light guide to direct light into the diffuser sheet and the reflective layer to bounce any missed light back into the diffuser. This prevents shadows and hotspots on the diffuser surface.

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A high concealment light guide plate for backlight sources that reduces visible bright lines and hotspots when light exits the plate. The plate has a light entrance end and an exit end. The plate body has a reflection surface with crisscrossing V-shaped slots and parallel slots. These slots form protruding reflection units. The V-shaped slots are vertical to guide light directionally. The parallel slots are parallel to the light source. This concentrates and reflects light from the slots, narrowing the diffuse reflection angles. It prevents light convergence on defects or white spots, weakening hotspots and lines. The slots improve concealment by uniformly distributing light.

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LED downlight apparatus with an anti-glare feature that mitigates direct light emission. The apparatus comprises a rim housing, an anti-glare cup surrounding the LED light source, and a driver module. The cup helps direct light downwards while shielding the LED from direct view. The driver module powers the LED.

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A low-glare, ruggedized, shock-absorbing, diffuse, reflecting luminaire that provides enhanced lighting efficiency, effectively filters or eliminates ultra-violet light, reduces energy costs (and carbon footprint), and reduces harmful glare without being overly large for both fixed and transportable uses. The luminaire uses an internally mirrored-shaped lens to spread light evenly and project it horizontally rather than focusing. The lens material contains UV filtering additives. The semi-soft flexible lens protects components. A Fresnel-like lens can be added. Shock-absorbing mounts reduce bulb damage.

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A light-emitting device that replicates the appearance of an incandescent bulb while avoiding glare when the LED filament intensity is increased. The device has a centrally arranged translucent core containing the LED light sources, surrounded by an outer bulb containing the LED filament. The core is designed to scatter and reflect light more at the filament position to increase the intensity ratio compared to the core. This allows higher filament intensity without glare.

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LED lamp for classrooms that provides improved anti-glare and uniform lighting without dazzling. The lamp has an LED assembly with a layered structure inside a frame. The layers include an opaque plate, reflective film, light guide plate, diffusion film, and prism plate. The light guide plate has an LED source emitting light towards it. The diffusion film has a glare control layer with hollow holes. The light guide plate has a hollow layer with a reflective support mechanism to guide emitted light. This arrangement reflects and refracts light through the hollow holes in the glare control layer and prism plate to emit uniform, anti-glare light.

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An LED retrofit lamp that mimics the appearance of incandescent bulbs while avoiding glare at higher brightness levels. The lamp has a translucent central core with LED light sources inside, surrounded by LED filaments outside the core. The core is designed to scatter and reflect light more around the filaments than in the rest of the core. This creates a higher-intensity contrast between the filament light and core light. It also reduces glare when the filament brightness is increased.

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Light fixtures that provide customizable, field-reconfigurable, and glare-free lighting for indoor spaces. The fixtures have modular components that can be easily changed to customize the fixture's lighting output. Key components include removable light engines, interchangeable adapter plates, and a baffle that hides the light sources at high angles. The fixtures can be reconfigured by disassembling from below to add, remove, and/or replace components. The modularity allows easy customization and upgrades without replacing the entire fixture. The fixtures also provide glare-free lighting with a baffle that hides the light sources at high angles while providing smooth reflections.

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A lighting device for a luminaire that produces less glare when the lumen output is increased. The device has a base, LED filaments, light guides, and a transmissive envelope. The LED filaments emit light in a first spatial distribution. The light guides the couple into the light and emits a second distribution. The light guides are external to the filaments. This reduces glare as increasing filament brightness is offset by diffusing light from the guides. The device mimics incandescent bulbs with decorative LED filaments but avoids glare at high output.

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A light diffusion panel to prevent glare and increase light diffusion from LEDs without reducing efficiency. The panel has a base with metallic particles or dielectric particles impregnated into it. The particles are heated and aligned by an applied magnetic or electric field. When light from an LED shines on the panel, the particles scatter the light in multiple directions, reducing glare. The particles are heated in the direction of the LED light to further enhance scattering. The panel is placed in front of the LED to diffuse the light.

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A rugged, glare-free, energy-efficient luminaire that provides uniform, low-glare illumination for outdoor area lighting. The luminaire uses an internally mirrored, cylindrical lens with UV-filtering and shock-absorbing properties. The lens shape and internal mirrors spread the light horizontally for wide area coverage. The flexible lens protects components and allows transport without disassembly. The lens also has Fresnel-like optical structures for uniform horizontal dispersion.

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Automotive lighting and signaling device with homogenous lighting using LED backlighting and a diffusion layer. The device has a light guide with LED light sources behind it. The light guide has an opaline diffusion layer that scatters and homogenizes the light from the LEDs. The diffusion layer has a transmission factor variation. It scatters more light from areas with lower intensity and less from areas with higher intensity. This prevents hotspots and dark areas. The variation can be achieved by changing the density and size of scattering particles in the opaline.

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LED lighting system that uses optical elements to direct light rays from unlensed LEDs instead of lensed LEDs to avoid hot spots and glare while maximizing light utilization. The system uses optical elements like diffusers, reflectors, and lens arrays to shape the LED's wide dispersion angle light into a desired distribution. This provides controlled illumination without the hot spots and glare of lensed LEDs, while avoiding light leakage and waste by keeping the light inside the display case.

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Lighting device with reduced glare, wider light distribution, and improved durability compared to conventional LED lighting. The device uses a light diffusing member made of fibrous glass to diffuse light from the LEDs. This reduces glare and widens the light distribution compared to unmodified LEDs. The fibrous glass material is more resilient to heat and light aging compared to translucent covers made of organic materials like polycarbonate. This helps prevent brightness decay over time in the lighting device.

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Lighting apparatus for providing comfortable lighting for the aging population. The lighting apparatus has two light source modules. The first module has a narrow beam angle and higher color temperature to provide focused task lighting. The second module has a wider beam angle and lower color temperature to provide ambient lighting. This configuration improves visibility for aging people by reducing glare and increasing color saturation. The narrow beam task lighting helps with visual tasks and wider beam ambient lighting provides overall illumination.

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Light emitting device that looks like an incandescent bulb but avoids glare when the LED filament intensity is increased. It has an LED filament outside a central translucent core with LED light sources. The core surrounds the filament. This configuration prevents excessive glare as the filament brightness increases. The core can have reflective or backscattering properties at the filament position to increase its intensity compared to the core.

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LED lighting fixture for reducing glare in low bay applications like parking garages. The fixture uses a modular design with a primary optic to distribute light and secondary optic to focus light. A tertiary lens is added to diffuse the concentrated light and reduce glare. The tertiary lens also acts as a cover that channels airflow over the LEDs to cool them.

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