Myopia Prevention Device Using 350-400 nm Wavelength Selective Transmission
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Solution Overview
Problem
The increasing prevalence of myopia worldwide, particularly axial myopia, which progresses with elongation of the eye's axial length and can lead to high myopia causing blindness, necessitates effective prevention and progression suppression methods.
Innovation Solution
Exposure to light with a wavelength range of 350 nm to 400 nm, achieved through devices that either transmit or emit light within this range, such as eyeglasses, lighting equipment, and light irradiation devices, to prevent and suppress myopia progression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light with wavelength 400 nm or less is blocked to prevent ultraviolet damage, then eye protection from ultraviolet damage is improved, but exposure to light in the 350 nm to 400 nm range is reduced, which may affect myopia prevention
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different wavelength ranges. Instead of uniformly blocking all light below 400 nm, the invention selectively transmits light in the 350-400 nm range while blocking shorter wavelengths. This is achieved through specific optical filter designs that allow targeted wavelength transmission, enabling simultaneous protection from harmful ultraviolet radiation and exposure to beneficial near-UV light for myopia prevention.
Solution Approach 2:
The patent utilizes parameter changes by precisely controlling the transmission characteristics of optical elements. By adjusting the transmission cutoff wavelengths and bandwidths of filters, the system optimizes the balance between blocking harmful ultraviolet light and transmitting beneficial 350-400 nm light. This involves specifying exact wavelength ranges and transmission percentages to achieve the desired dual effect.
2Object-affected harmful factors
If conventional eyeglasses and contact lenses are used to block ultraviolet light, then transmission of harmful ultraviolet light is minimized, but they do not specifically ensure exposure to light in the 350 nm to 400 nm range needed for myopia prevention
Solution Approach 1:
The patent applies segmentation by dividing the ultraviolet and near-UV spectrum into distinct functional zones. Rather than treating all short-wavelength light uniformly, the invention segments the spectrum to block harmful wavelengths (below 350 nm) while transmitting beneficial wavelengths (350-400 nm). This segmentation is implemented through multi-layer optical coatings or stacked filter elements that address different wavelength ranges separately.
Solution Approach 2:
The patent introduces optical filters and wavelength-selective elements as intermediaries between the light source and the eye. These intermediary components selectively transmit or block specific wavelength ranges, mediating between the need to block harmful ultraviolet light and the need to transmit beneficial 350-400 nm light. The filters act as intelligent intermediaries that perform spectral discrimination.
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
Significantly reduces the elongation of the eye's axial length and refractive myopia, effectively preventing the occurrence and progression of myopia, as demonstrated by studies using intraocular lenses and light exposure on chicks.
Implementation Method 1
a light transmission part that transmits light (light having a wavelength within the range of 350 nm to 400 nm inclusive)
Implementation Method 2
a light emission part which emits light (light having a wavelength within the range of 350 nm to 400 nm inclusive)
Data Source
AI summary
The purpose of the present invention is to provide a myopia prevention device. A myopia prevention device of the present invention comprises a light transmission part selected from a group consisting of an eyesight correcting tool, an eye protection tool, a face protection tool, a sunshade, a display device, a window, a wall, a light source covering, and a coating material. The light transmission part of the device transmits light having a wavelength within a range of 350 nm to 400 nm inclusive and thus suppresses the occurrence and progression of myopia. Further, a myopia prevention device comprises a light emission part selected from a group consisting of lighting equipment, a display device, and a light irradiation device. The light emission part of the device emits light having a wavelength within a range of 350 nm to 400 nm inclusive and thus suppresses the occurrence and progression of myopia.