Dual-Filter Magnification Device for Laser Eye Safety
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Solution Overview
Problem
Current optical magnification devices used in the presence of laser radiation do not adequately protect the eyes from retinal hazards, as they often filter out specific wavelengths inadequately, leading to discomfort and increased risk of eye damage due to cumbersome designs.
Innovation Solution
A magnification device with a housing containing objective and eye lenses, along with a dual-filtering system comprising a first filter lens at the distal end and a second filter lens at the proximal end, each with specific optical densities to attenuate harmful electromagnetic radiation before and after magnification, ensuring safe eye protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single filter lens is used in magnification devices, then the device structure is simple, but the eye protection against laser radiation is inadequate
Solution Approach 1:
The filtering system is divided into two separate filter lenses positioned at different locations within the magnification device. The first filter lens is positioned at the distal end to block harmful radiation before it enters the optical system, while the second filter lens is positioned at the proximal end to provide additional protection. This segmentation allows each filter to perform a specific protective function, thereby improving overall eye protection effectiveness without requiring a single complex filter system.
2Object-affected harmful factors
If filter lenses with high optical density are used, then harmful radiation is effectively blocked, but visible light transmission is reduced
Solution Approach 1:
Each filter lens is designed with specific optical density characteristics tailored to its position and function. The first filter lens at the distal end has optical density optimized for blocking incoming laser radiation, while the second filter lens at the proximal end has optical density optimized for protecting the eye from magnified radiation. This localized optimization allows each filter to address specific harmful wavelengths while maintaining adequate visible light transmission for the overall system.
3Measurement precision
If magnification is increased to improve visualization, then the work area is magnified, but the concentration of laser energy at the retina increases
Solution Approach 1:
The first filter lens is positioned at the distal end of the magnification device to preliminarily block harmful laser radiation before it enters the optical system and before it can be magnified. By performing the filtering action beforehand, the system prevents the concentration of harmful energy that would otherwise occur with magnification, while still allowing the optical system to provide the necessary magnification for precise work visualization.
4Reliability
If existing laser safety glasses are used with magnification devices, then eye protection is provided, but the device becomes cumbersome and uncomfortable
Solution Approach 1:
The filtering system is merged with the magnification device structure, with both the first and second filter lenses integrated into the housing of the magnification device. This combination eliminates the need for separate laser safety glasses, as the magnification device itself provides both magnification and eye protection functions. The integrated design maintains a compact and comfortable form factor suitable for prolonged use during surgical or dental procedures.
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 dual-filtering system effectively blocks harmful radiation, reducing the risk of eye damage while maintaining visible light transmission, providing comfortable and effective eye protection during procedures involving laser radiation.
Implementation Method 1
the first and second filter lens having first and second optical densities, respectively, selected based on the desired level of magnification
Implementation Method 2
an optical system including one or more objective lenses mounted in the housing adjacent the distal open end, and one or more eye lenses mounted in the housing adjacent the proximal open end, achieving a desired level of magnification
Data Source
AI summary
A magnification device including a housing having a distal open end and a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal open end, and one or more eye lenses adjacent the proximal open end, the optical system produced a desired level of magnification; and a filtering system having first filter selectively filtering a first group of wavelengths and a second filter selective filtering a second group of wavelengths. The first and second filters having an optical density selected based on a magnification level of the optical system. A vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is also disclosed, wherein the magnification devices include filters that have optical densities based on a magnification level.