Skin Irradiation Filter Device for UV and Red Light Wavelength Selection
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Solution Overview
Problem
Existing irradiation devices for skin tanning face high installation costs, energy consumption, and complexity due to the need for additional LED spotlights for red light emission, which also lack adaptive intensity control and suffer from uneven radiation distribution.
Innovation Solution
An irradiation device with a filter device that emits UV radiation and red light simultaneously, using a filter disk with specific coatings to transmit desired wavelengths while filtering others, allowing for uniform and adaptive radiation emission without the need for additional LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LED spotlights are added to provide red light radiation, then collagen and elastin production can be stimulated, but installation complexity and cost increase
Solution Approach 1:
The patent merges the UV radiation source and red light emission function into a single integrated device. The filter device is positioned in the radiation path of the UV source, and through selective wavelength transmission, it simultaneously provides both UV radiation for tanning and red light for collagen stimulation, eliminating the need for separate LED spotlights
Solution Approach 2:
The filter device serves multiple functions: it filters UV radiation to transmit specific wavelengths (280-400 nm) for tanning, simultaneously transmits red light wavelengths (600-700 nm) for collagen production, and blocks other wavelengths. This multi-functionality replaces what would otherwise require separate LED devices
2Reliability
If LED spotlights are added for red light emission, then skin benefits are enhanced, but energy consumption increases drastically
Solution Approach 1:
The patent combines the UV radiation source and red light emission function into a single integrated device. The filter device is positioned in the radiation path of the UV source, and through selective wavelength transmission, it simultaneously provides both UV radiation for tanning and red light for collagen stimulation, eliminating the need for separate LED spotlights
Solution Approach 2:
The UV radiation source serves dual purposes: it provides UV radiation for tanning and, through the filter device, generates red light for collagen stimulation. The single radiation source performs multiple functions, reducing overall energy consumption compared to using separate UV and LED systems
3Reliability
If LED spotlights are used, then red light radiation is provided, but the visible radiation component is perceived as disturbing
Solution Approach 1:
The filter device extracts only the beneficial red light wavelengths (600-700 nm) from the broad spectrum radiation and transmits them, while blocking other visible wavelengths that would be perceived as disturbing. This selective extraction provides the desired red light effect without the unwanted visible radiation components
Solution Approach 2:
The filter device creates local quality by allowing specific wavelength ranges to pass through while blocking others. The filter has different transmission properties at different wavelengths, permitting red light (600-700 nm) to pass while absorbing or reflecting other visible wavelengths, thus providing localized wavelength selection
4Reliability
If LED spotlights are added, then red light radiation is achieved, but intensity coupling with UV radiation is difficult
Solution Approach 1:
The patent merges the UV radiation source and red light emission function into a single integrated device. The filter device is positioned in the radiation path of the UV source, and through selective wavelength transmission, it simultaneously provides both UV radiation for tanning and red light for collagen stimulation, eliminating the need for separate LED spotlights
Solution Approach 2:
The integrated design allows the intensity of red light emission to be automatically coupled to the UV radiation intensity. As the UV source intensity varies, the red light transmission through the filter device varies proportionally, providing automatic intensity matching without complex adjustment mechanisms
Data Source
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AI summary
The invention relates to an irradiation device (1) for irradiating human skin, preferably the face of a user (12), in particular at least with radiation in the red light range, comprising a radiation source (2) and a filter device (3) for filtering the radiation emitted by the radiation source (2). According to the invention, the filter device (3) is configured such that the irradiation device (1) emits radiation in a wavelength range of 280 to 400 nm and radiation in a wavelength range of 600 to 700 nm, and that the irradiation device (1) emits radiation at least in certain areas in a wavelength range of a visible hue of the visible light spectrum and filters out further radiation of the visible light spectrum.