Lamp With Spectral Filter And Glare Limiter
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Solution Overview
Problem
Existing lighting systems emit light over a large opening angle, leading to unnecessary light contamination and potential negative impacts on animals due to specific spectral ranges, as they lack effective spectral and spatial control over light emission.
Innovation Solution
Incorporating a filter device and glare limiting device within the protective trough of the lamp, which can be easily installed or retrofitted, to spectrally filter and geometrically restrict light emission, ensuring it is only directed where needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If no filter device is used, then the lamp structure is simple, but spectral ranges that negatively impact animals are not filtered
Solution Approach 1:
The filter device is nested within the protective trough of the lamp, integrating the filtering function into the existing lamp structure without requiring separate external components. This resolves the contradiction by adding spectral filtering capability while maintaining a compact, unified lamp design.
Solution Approach 2:
The filter device utilizes thin film technology to achieve spectral filtering with minimal structural addition. The thin film filter can be applied to the inner surface of the protective trough, providing effective spectral control while adding minimal complexity to the lamp structure.
2Object-affected harmful factors
If light is emitted over a large opening angle, then illumination coverage is extensive, but light pollution increases in unnecessary areas
Solution Approach 1:
The glare limiting device creates local quality variations in the light emission by allowing light to pass through specific zones of the protective trough while blocking other zones. This directs light precisely where needed (path illumination) while preventing light pollution in surrounding areas, resolving the contradiction between targeted illumination and extensive coverage.
3Adaptability or versatility
If a filter device and glare limiting device are added, then spectral and spatial control of light is improved, but the lamp structure becomes more complex
Solution Approach 1:
The filter device and glare limiting device are merged into a single integrated system within the protective trough. Both functions are combined in one structural element rather than requiring separate components, thereby improving light emission control while minimizing the increase in structural complexity.
Solution Approach 2:
The protective trough is designed to serve multiple functions: it protects the lamp components, provides structural support, and simultaneously houses both the filter device and glare limiting device. This multi-functionality approach allows the lamp structure to gain enhanced control capabilities without proportionally increasing complexity.
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
This solution effectively reduces light pollution and minimizes the negative impact on animals by selectively filtering specific spectral ranges and limiting light emission to specific areas, optimizing illumination while reducing visibility from unwanted angles.
Implementation Method 1
a filter device (6) assigned to a protective trough (3) of a lamp (1), by which a spectral range of light emitted by an illuminant (4) can be filtered out
Implementation Method 2
a glare limiting device (7) assigned to a protective trough (3) of a lamp (1), by which a light emission of the lamp (1) can be restricted in a corresponding opening angle range
Implementation Method 3
at least with regard to the intensity distribution
Data Source
Figure 1~3
AI summary
The invention relates to a lamp (1), comprising at least a lamp housing (2) and a transparent or translucent protective tray/cover (3). Lighting means (4) and associated electrical or electronic components (5) are arranged in the lamp housing. The protective tray/cover is in particular detachably connected to the lamp housing. In order to be able to variably limit the emitted light both in a spectral manner and in a spatial manner by means of a simple design, a filter device (6, 9) for spectrally filtering the light emitted by the lighting means and/or a glare limiting device (7) is associated with the protective tray/cover (3).