Operating Light Radial Color Temperature Distribution
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Solution Overview
Problem
Conventional operating lights fail to provide an optimal light perception that balances concentration and fatigue reduction, as they often rely on uniform color temperatures that can be either too glaring or too relaxing, lacking a dynamic distribution to accommodate varying work areas effectively.
Innovation Solution
An operating light with a radiation source that produces a locally varying color temperature distribution in a radial pattern across a work area, featuring a constant color temperature in the innermost part, a decreasing temperature in the middle area, and a lower temperature in the outer area, achieved through a combination of LED technology and optical systems that maintain the color temperature distribution and intensity patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a uniform color temperature is used in conventional operating lights, then the lighting is simple to control, but the light perception is suboptimal and causes either glare or excessive relaxation
Solution Approach 1:
The patent applies local quality by creating different color temperature zones within the lighting area. The central region has a higher color temperature (4000-6500K) for concentrated illumination, while the peripheral region has a lower color temperature (2000-4000K) for relaxed lighting. This spatial variation in color temperature properties allows different areas to serve different functional purposes, eliminating glare in the work area while maintaining comfort at the edges.
Solution Approach 2:
The lighting area is segmented into distinct functional zones: a central work area with high color temperature for concentration and a peripheral area with low color temperature for relaxation. This segmentation allows each zone to be optimized independently for its specific function, resolving the contradiction between simple control and optimal light perception by maintaining uniform intensity while varying color temperature across zones.
2Productivity
If high color temperature light is used to enhance concentration, then cognitive performance improves, but fatigue and glare increase
Solution Approach 1:
The patent implements local quality by applying high color temperature (4000-6500K) specifically to the central work area where concentration is needed, while applying low color temperature (2000-4000K) to the peripheral area where relaxation is beneficial. This localized application of color temperature properties allows the system to enhance productivity where needed without causing fatigue throughout the entire lighting area.
3Object-affected harmful factors
If low color temperature light is used to reduce fatigue, then relaxation improves, but concentration ability decreases
Solution Approach 1:
The patent applies local quality by reserving low color temperature (2000-4000K) for the peripheral lighting area where fatigue reduction is desired, while maintaining high color temperature (4000-6500K) in the central work area to preserve concentration ability. This spatial differentiation ensures that relaxation benefits are obtained at the edges without compromising cognitive performance at the work surface.
4Device complexity
If a single color temperature is used across the entire lighting area, then the lighting system is simple, but it cannot accommodate varying work area requirements
Solution Approach 1:
The lighting system is segmented into multiple color temperature zones without requiring complex control mechanisms. The central high color temperature zone and peripheral low color temperature zone are created through optical design rather than active control, maintaining system simplicity while achieving adaptability to different work area requirements through spatial differentiation of lighting properties.
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 enhances light perception by allowing for high concentration with reduced fatigue in the central operating area while minimizing overstimulation at the edges, utilizing a radial color temperature pattern that adjusts lighting intensity and color temperature to create a more comfortable working environment.
Implementation Method 1
a blue-emitting semiconductor, which is coated with a phosphor layer, which absorbs part of the transmitting blue light, fluoresces broad-band yellow light and thus generates white light by mixing the radiation
Implementation Method 2
An optical imaging system is used to focus the light radiation of the LED onto a work area at a defined distance
Data Source
AI summary
An operating light (36) and a process are provided for lighting an operating table via an operating light (36). The operating light (36) includes at least one first radiation source (1), which is suitable for producing light (12) with locally different, especially radially outwardly decreasing color temperature distribution (18) in a plane extending at right angles to the work area.