Mirror Cabinet with Integrated Side-Wall LED Lighting to Reduce Dazzle

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Solution Overview

Problem

Existing mirror cabinets in bathrooms often dazzle users with direct lighting, compromising visibility and requiring additional space for lighting fixtures, which limits the interior space and design flexibility.

Innovation Solution

The mirror cabinet features LED lighting elements integrated into the side walls and optionally the top and bottom walls, using translucent panel elements flush-mounted in longitudinal profiles, eliminating the need for additional space and allowing customizable lighting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If external light sources are positioned on top of the housing, then adequate lighting is provided, but the light directly illuminates the user causing dazzle and compromised visibility

Engineering Contradiction:
Improvelighting intensityVSAvoiddazzle effect
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

A translucent diffuser panel is introduced as an intermediary element between the LED light source and the user. The panel scatters the direct light into diffuse illumination, eliminating the dazzle effect while maintaining adequate lighting intensity in the bathroom interior.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The lighting system provides different lighting qualities in different locations: direct LED illumination for task lighting near the mirror, and diffuse indirect lighting for general ambient illumination in the bathroom interior, achieving both visibility and comfort.

Inventive Principle:
Principle #3Local quality

2Illumination intensity

If box-shaped brackets with integrated LED strips are arranged inside the cabinet, then interior lighting is provided, but a corresponding amount of space inside the cabinet is required

Engineering Contradiction:
Improveinterior lightingVSAvoidcabinet interior space
Core Design Contradiction:
Illumination intensityVSVolume of moving object

Solution Approach 1:

The lighting structure is merged with the cabinet's existing longitudinal profiles. The LED strips are mounted on support elements that integrate into the cabinet frame structure, eliminating the need for separate box-shaped brackets and preserving maximum interior space.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting elements are arranged in a linear configuration along the longitudinal profiles rather than requiring three-dimensional box-shaped brackets, transforming the space requirement from volumetric to linear and minimizing interior space occupation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If lighting elements are installed in the side wall of the cabinet, then optimal non-dazzling illumination is achieved, but the structure becomes more complex

Engineering Contradiction:
Improveillumination qualityVSAvoidlighting structure
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The longitudinal profiles serve multiple functions: they provide structural support for the cabinet, act as mounting channels for the lighting elements, and serve as the framework for the overall cabinet assembly, thereby simplifying the overall structure despite the integrated lighting.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Provides optimal, non-dazzling interior illumination with adjustable light intensity and color, enhancing visibility and maintaining a spacious, unobstructed design.

Implementation Method 1

a panel element (21) fastened in a longitudinal profile (3) of the frame (2), which is preferably made of a translucent milky plastic

Methodology Applied
Scientific EffectLight diffusion: Scattering

Data Source

PatentEP3804563B1Mirror cabinet, in particular for a bathroom
Publication Date: 2025.07.23 W SCHNEIDER CO
  • EP3804563B1 patent drawingFigure 1~2
  • EP3804563B1 patent drawingFigure 3~5

AI summary

A mirrored cabinet, particularly for a bathroom, is equipped with a frame (2) with side walls (5, 6), a lower and an upper wall (7, 8), a back wall (4), and with or without at least one shelf (14, 15). The interior (13) of the at least one side wall (5, 6), the lower and upper walls (7, 8), the frame (2), the back wall (4), and/or the shelf (14, 15) is provided with a lighting device (20) with one or more light elements (19), which is preferably installed as indirect lighting.