Strip LED Lighting Device for Perceived Space Enhancement

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Solution Overview

Problem

Small rooms, such as elevators, often cause claustrophobia due to perceived lack of space, and existing solutions like mirrors provide limited optical enlargement and increased costs with complex textile fabric lighting devices.

Innovation Solution

A lighting device with a strip-like design that illuminates a structured aluminum foil reflector surface, simulating dome-like or pointed-roof designs to enhance perceived room height and depth, using LEDs on frame profiles for easy assembly and low-cost production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If mirrors are used to enlarge the perceived room space, then the optical enlargement effect is achieved, but the cost increases and the effect is limited

Engineering Contradiction:
Improveperceived room spaceVSAvoidcomplexity of optical enlargement solution
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent uses changes in light color temperature (from warm to cool white) to create different visual perceptions of space. The LED module transitions between color temperatures to simulate different lighting conditions that affect perceived room size, providing an optical enlargement effect without using mirrors or complex structures.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent introduces temporal dimension by dynamically changing light color temperature over time. This creates a dynamic lighting experience that simulates different times of day or weather conditions, enhancing the perceived space through temporal variation rather than static mirror reflections.

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

2Illumination intensity

If textile fabrics with light sources are used to create lighting effects, then optical effects are achieved, but the technical requirements and costs are high

Engineering Contradiction:
Improvelighting effect qualityVSAvoidtechnical complexity of lighting device
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent extracts the light source from complex textile fabric structures and places it in a simple LED module mounted on the rear wall. This separates the illumination function from the complex optical structures, achieving lighting effects with minimal technical complexity while maintaining high illumination quality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical/optical systems (textile fabrics with embedded light sources) with an electrical system (LED module). This substitution simplifies the device by using electrically controllable LEDs instead of mechanically complex fabric-based lighting systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Area of stationary object

If complex optical structures are used to simulate room enlargement, then the perceived space increases, but the device height and complexity increase

Engineering Contradiction:
Improveperceived room depthVSAvoiddevice height
Core Design Contradiction:
Area of stationary objectVSLength of stationary object

Solution Approach 1:

The patent uses color temperature transitions to create depth perception. By shifting from warm to cool white light, the system simulates different lighting conditions that enhance perceived room depth without requiring physically tall structures or complex optical elements.

Inventive Principle:
Principle #32Color changes

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

The device effectively increases the perceived space in small rooms, reducing claustrophobic feelings while maintaining low technical complexity and cost, suitable for retrofitting and varying room designs.

Implementation Method 1

more than one LED (Light Emitting Diode) is arranged, which is designed in the manner of a strip 5

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 2

The structure of the surface brings about an effect which, for example, simulates a dome-like or pointed-roof design

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP3458771B1Lighting device
Publication Date: 2021.08.11 BBH DESIGNELEMENTE GMBH
  • EP3458771B1 patent drawingFigure 1~6

AI summary

The invention relates to a lighting device for attaching to a building wall, comprising a mounting frame (1), which has a back wall (3) and which is provided with a transparent plate (4) on the visible side of the mounting frame, wherein at least one LED and a reflective surface (7) are arranged in the mounting frame (1). According to the invention, the LED is fastened to the mounting frame (1) and is designed as a strip (5) or band. The reflective surface (7) is formed by a reflector film, which has a structured surface on the side of the reflector film facing the plate (4).