Lighting Apparatus Uniform Luminance Color Temperature
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Solution Overview
Problem
Existing lighting apparatuses that control color temperature suffer from non-uniform luminance and inefficiency, as they require turning off some light modules to achieve desired color temperatures, leading to decreased performance.
Innovation Solution
A lighting apparatus design featuring a combination of main light sources emitting white light and sub-light sources emitting color light, with a light guide plate to mix and distribute the light uniformly, allowing for efficient use of all light sources across varying color temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light modules with different color temperatures are alternately disposed to control color temperature, then color temperature control is achieved, but luminance uniformity deteriorates (light modules look stained)
Solution Approach 1:
The patent merges light sources of different color temperatures (2500K and 6000K) into a single integrated lighting apparatus with a unified optical system, including a common reflector and lens assembly. This combination allows all light sources to be simultaneously active while maintaining luminance uniformity, eliminating the stained appearance problem that occurs when separate light modules are alternately disposed.
2Adaptability or versatility
If intensity of lighting of each light module is adjusted to control color temperature, then color temperature control is achieved, but efficiency deteriorates (only some light modules are used)
Solution Approach 1:
The patent enables continuous operation of all light sources across the entire color temperature range. By integrating both 2500K and 6000K light sources with a unified optical system, the design allows all bulbs to remain active simultaneously, adjusting their individual intensities to achieve desired color temperatures without turning off any light modules, thus maintaining continuous useful action and high lighting efficiency.
3Adaptability or versatility
If separate light modules are used for different color temperatures, then color temperature adjustment is possible, but device complexity increases (multiple separate modules required)
Solution Approach 1:
The patent creates a universal lighting apparatus that can produce multiple color temperatures (2500K, 3000K, 6000K) using a single integrated system. The apparatus includes both 2500K and 6000K light sources along with a unified reflector and lens assembly that works for all color temperatures, eliminating the need for separate light modules or complex switching mechanisms required by conventional designs.
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 provides uniform luminance and increased efficiency by allowing all light sources to be used across different color temperatures, eliminating non-uniformity and enhancing the overall performance of the lighting apparatus.
Implementation Method 1
a light guide plate mixing the white light radiated from the main light source and the color light radiated from the sub-light source and radiating the mixed light downward
Data Source
AI summary
Disclosed herein is a lighting apparatus. The lighting apparatus includes: a first light emitting unit including one or more main light sources radiating white light downward; one or more second light emitting units formed at the sides under the first light emitting unit and including one or more sub-light sources radiating color light that is mixed with the white light radiated from the first light emitting unit; and a light guide plate mixing the white light radiated from the main light sources and the color light radiated from the sub-light sources and radiating the mixed light downward.According to the embodiments, it is possible to remove non-uniformity of luminance of the lighting apparatus that can control color temperature by efficiently disposing main light sources radiating white light and sub-light sources radiating color light. Further, it is possible to increase efficiency of the lighting apparatus by radiating light, using all of the main light sources even at any color temperature.