Infrared-Filtering Optical Lens with Segmented Absorbent Regions
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Solution Overview
Problem
Existing infrared ray-absorbable eyeglasses lenses and spectacle lens devices are unable to effectively absorb both ultraviolet rays and high-energy violet rays, leading to a reduction in transmittance rates across the whole visible spectrum.
Innovation Solution
The development of an infrared-filtering thermal-isolative optical lens device that incorporates a lens body with an optical filter, featuring a violet & UV absorbent region, an IR absorbent region, and a whole-visible-spectrum transmittance region. This configuration allows for the absorption of violet light, UV light, and IR light, while maintaining enhanced transmittance across the visible spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If infrared ray absorbent is added to the lens, then infrared ray absorption is improved, but transmittance rate in visible spectrum is reduced
Solution Approach 1:
The optical filter is divided into distinct functional regions: a violet & UV absorbent region for absorbing wavelengths below 400 nm, a whole-visible-spectrum transmittance region for transmitting visible light (400-780 nm), and an IR absorbent region for absorbing infrared wavelengths above 780 nm. This segmentation allows each region to independently perform its function without interfering with the others, resolving the contradiction between infrared absorption and visible light transmittance.
Solution Approach 2:
Different portions of the optical filter are assigned different optical properties: the violet & UV absorbent region has high absorption in the UV/violet range, the whole-visible-spectrum transmittance region has high transmittance across the visible spectrum, and the IR absorbent region has high absorption in the infrared range. This local differentiation of optical properties enables selective wavelength management, allowing infrared absorption without compromising visible light transmission.
2Object-affected harmful factors
If ultraviolet absorbent and blue light absorbent are added to the lens, then ultraviolet and blue ray absorption is improved, but transmittance rate in whole visible spectrum is reduced
Solution Approach 1:
The optical filter is segmented into functional regions, with the violet & UV absorbent region specifically targeting ultraviolet and violet wavelengths below 400 nm, while the whole-visible-spectrum transmittance region ensures high transmittance for visible light from 400-780 nm. This segmentation allows UV and blue ray absorption without reducing overall visible spectrum transmittance.
Solution Approach 2:
The violet & UV absorbent region is designed with local optical properties that selectively absorb ultraviolet and violet wavelengths while being transparent to other wavelengths. This localized quality assignment enables harmful UV/blue ray absorption while preserving beneficial visible light transmission in other regions of the filter.
3Object-affected harmful factors
If multiple absorbents are combined in the lens, then comprehensive ray absorption (IR, UV, blue) is improved, but transmittance rate in visible spectrum is reduced
Solution Approach 1:
The optical filter is divided into three distinct functional regions: violet & UV absorbent region, whole-visible-spectrum transmittance region, and IR absorbent region. Each region contains specific absorbents tailored to its function, allowing comprehensive ray absorption across different wavelength ranges while maintaining high visible spectrum transmittance through the dedicated transmittance region.
Solution Approach 2:
Different absorbents are localized to specific regions of the optical filter based on their spectral absorption characteristics. The violet & UV absorbent region contains UV-absorbing compounds, the whole-visible-spectrum transmittance region maintains optical clarity, and the IR absorbent region contains infrared-absorbing materials. This local quality differentiation enables comprehensive absorption of harmful rays while preserving visible light transmission.
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 optical lens device successfully absorbs high-energy violet light and UV light, while enhancing the transmittance of the whole visible spectrum, thereby addressing the limitations of existing technologies.
Implementation Method 1
the violet & UV absorbent region is provided to absorb a violet light and a UV light of beams
Implementation Method 2
the IR absorbent region is provided to absorb an IR light of beams to reduce an IR-heat transformed energy
Implementation Method 3
the whole-visible-spectrum transmittance region is formed therebetween, with transmitting a beam through the optical absorbance portion
Data Source
AI summary
An optical lens device includes a lens body, an optical filter and an optical absorbance portion. The optical absorbance portion has a violet & UV absorbent region and an IR absorbent region between which forms a whole-visible-spectrum transmittance region. The whole-visible-spectrum transmittance region is located between a first transmittance wavelength at 400 nm and a second transmittance wavelength at 780 nm. The violet & UV absorbent region is provided to absorb a violet light and a UV light of beams while the IR absorbent region is provided to absorb an IR light of beams.