Lamp Housing Light Exit Element for Glare-Free Ceiling Brightening
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Solution Overview
Problem
Existing lamps, such as those described in WO 01/59364 A1 and US Pat. No. 2,434,049, face issues with maintenance due to complex configurations that make cleaning difficult and do not effectively brighten the ceiling area surrounding the luminaire, leading to glare and uneven lighting.
Innovation Solution
A lamp with a box-shaped housing featuring a light exit element that has different light emission characteristics in distinct areas, allowing for directed light emission in one area and diffuse emission in another, with a flat underside for easy cleaning and adjustable elements to enhance ceiling brightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If additional reflector wings and diffusers are arranged laterally from the light source to brighten the surrounding area, then the area surrounding the luminaire grid is brightened, but the overall height of the luminaire increases and the configuration becomes complex making cleaning difficult
Solution Approach 1:
The patent combines the functions of the light exit element and the diffuser into a single integrated component. The light exit element serves both as the boundary of the light chamber and as the diffusing surface, eliminating the need for separate diffuser components and reducing overall structural complexity while maintaining the ability to brighten surrounding areas
Solution Approach 2:
The light exit element performs multiple functions simultaneously: it defines the light chamber boundary, provides light emission in specific directions, and diffuses light to brighten surrounding areas. This multi-functional design reduces the number of components needed while achieving comprehensive lighting performance
2Illumination intensity
If diffusers are arranged in front of reflector wings to achieve homogeneous light emission, then uniform light distribution is improved, but the luminaire becomes more complex and harder to maintain
Solution Approach 1:
The light exit element merges the diffuser function with the light chamber boundary, creating a single accessible component that can be easily removed and cleaned. This eliminates the need for separate diffuser components that would be difficult to access and maintain
Solution Approach 2:
The light exit element is designed as a removable component that can be easily taken out from the luminaire housing for cleaning and maintenance. This extraction capability allows the diffusing surface to be accessed without disassembling the entire luminaire structure
3Use of energy by moving object
If the light exit opening is left open to allow light emission, then light output is maximized, but dirt accumulation occurs and maintenance becomes difficult
Solution Approach 1:
The light exit element acts as a thin film or panel that covers the light exit opening while allowing light to pass through. This thin film structure prevents dirt accumulation on internal components while maintaining effective light output, and can be easily removed for cleaning
4Illumination intensity
If concave-shaped reflectors and diffusers are used to improve light distribution, then homogeneous emission is achieved, but the luminaire height increases and cleaning access is reduced
Solution Approach 1:
The light exit element combines the diffuser function with the light chamber boundary, allowing homogeneous light emission to be achieved within the existing luminaire height without adding separate concave diffuser components that would increase overall dimensions
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 solution improves maintenance by simplifying cleaning and maintains comparable lighting properties to prior art, while providing glare-free illumination and uniform brightness, including the ability to brighten the ceiling area surrounding the luminaire.
Implementation Method 1
The light exit element has a light influencing element in the first emission area, which causes a directed emission of light
Implementation Method 2
at least one reflector surface arranged next to the light source
Implementation Method 3
the light emission characteristic of the second emission area is such that the light is emitted diffusely here
Data Source
AI summary
The invention relates to a lamp (1) with a box-like housing (2) for housing at least one elongated light source (3) and at least one reflector surface (4), arranged next to the light source (3) - seen from the region for illumination - said lamp housing (2) forming a light outlet opening closed by a light outlet element (5). The light outlet element has a first light emission characteristic in an emission region (A) essentially in front of the light source (3) and a second light emission characteristic different from the first light emission characteristic in a second emission region (B) separate from the first emission region (A).