Lighting Apparatus Multiple Light Sources Diverse Distribution
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Solution Overview
Problem
Existing illumination devices require additional optical elements like lenses, reflectors, or diffusers to achieve diverse light distributions, which are costly and increase the device's expense.
Innovation Solution
The use of multiple light sources with different light distributions, such as Lambertian and bat-wing distributions, where the light output intensity or quantity ratios are adjusted to modulate the overall light distribution without the need for additional optical elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional optical elements (lens, reflector, diffuser) are used to change light distribution, then diversified light distributions are achieved, but device cost increases
Solution Approach 1:
The illumination device is segmented into multiple independent light sources, each with distinct light distribution characteristics (e.g., first light source with narrow beam angle, second light source with wide beam angle). By combining these segmented light sources with different optical properties, the system achieves diversified light distributions without requiring additional optical elements like lenses or reflectors, thereby reducing device cost while maintaining adaptability.
2Adaptability or versatility
If multiple light sources with different light distributions are used, then diversified light distributions are achieved, but device complexity increases
Solution Approach 1:
Multiple light sources with different light distribution characteristics are merged into a single illumination device structure. The first light source (e.g., narrow beam angle LED) and second light source (e.g., wide beam angle LED) are combined such that their light beams overlap and mix, achieving diversified light distributions through their inherent optical properties rather than through complex external optical elements. This merging approach reduces structural complexity compared to using separate illumination devices or adding optical components.
Data Source
AI summary
The present invention relates to an illumination device, including: a support member; and at least one first light source on the support member and at least one second light source on the support member, where the first light source has a first light distribution, the second light source has a second light distribution, and the first light distribution is different from the second light distribution.