# How Recessed Wall Wash Lights Reduce Glare Using Angled Lenses

> A specialized recessed light fixture design that uses an angled lens and a unique kicker reflector to wash walls with light while minimizing direct glare for people in the room.

- **Patent:** US RE50690
- **Original title:** USRE50690E1 - Low glare wall wash light fixture
- **Owner:** USAI LLC
- **Granted:** 2025
- **Status:** Active
- **Times cited:** 0
- **Field:** consumer_electronics, mechanical

## What it does

This patent describes a recessed light fixture designed to illuminate a wall evenly without creating harsh glare. It uses an LED module that is physically offset from the center of the fixture's aperture. A custom lens with a concave side facing the LED and a convex side facing the room is tilted at an oblique angle to redirect the light. Additionally, an internal kicker reflector with prismatic features sits near the edge of the fixture to catch and redirect light toward the wall, ensuring the light hits the target surface rather than shining directly into a person's eyes.

## What it does NOT cover

- Does not cover standard downlights that emit light straight down without a wall-washing effect
- Does not cover fixtures that lack the specific combination of an offset LED and a tilted lens
- Does not cover light fixtures that use flat, non-curved lenses
- Does not cover lighting systems that rely on external dimmers or smart home software to control glare

## The clever bit

The innovation lies in the specific geometry of the lens and the kicker reflector, which effectively 'bends' the light beam at an angle while maintaining a compact, recessed form factor that hides the light source from the viewer's direct line of sight.

## Real-world examples

1. High-end architectural recessed lighting
2. Museum and gallery wall-washing systems
3. Luxury residential interior lighting

## Why it matters

Wall washing is a common architectural lighting technique used to highlight artwork or textures on walls. By minimizing glare through precise optical engineering, this design allows for high-intensity wall illumination without the visual discomfort often associated with high-output LED fixtures in modern office or residential spaces.

## Frequently asked questions

### What does How Recessed Wall Wash Lights Reduce Glare Using Angled Lenses cover?

A specialized recessed light fixture design that uses an angled lens and a unique kicker reflector to wash walls with light while minimizing direct glare for people in the room.

### Who owns patent US RE50690?

USAI LLC owns this patent, granted in 2025.

### When does this patent expire?

This patent is expected to expire on December 9, 2045, when the invention enters the public domain.

### What problem does this patent solve?

Wall washing is a common architectural lighting technique used to highlight artwork or textures on walls. By minimizing glare through precise optical engineering, this design allows for high-intensity wall illumination without the visual discomfort often associated with high-output LED fixtures in modern office or residential spaces.

### What does this patent NOT cover?

Does not cover standard downlights that emit light straight down without a wall-washing effect

**Full plain-English explainer:** https://patentbrief.org/patent/us/RE50690/sonicare-toothbrush

**Original patent:** https://patents.google.com/patent/USRE50690

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_Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._