Magnification Device Dual Filter Lens Laser Protection
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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 harmful electromagnetic radiation, as they often filter out specific wavelengths inadequately, leading to increased risk of eye damage due to cumbersome and uncomfortable designs.
Innovation Solution
A magnification device with a housing containing an optical system and a dual-filtering system, where the first filter lens at the distal end and a second filter lens at the proximal end have specific optical densities to attenuate harmful radiation before and after magnification, ensuring safe eye protection across various laser wavelengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single filter lens is used in magnification devices, then the device structure is simple, but the eye protection against harmful electromagnetic radiation is insufficient
Solution Approach 1:
The filtering system is divided into two separate filter lenses positioned at different locations within the optical path. The first filter lens is positioned to block harmful radiation before it enters the optical system, while the second filter lens provides additional protection after magnification. This segmentation allows each filter to be optimized for specific wavelengths and provides redundant protection without requiring a single complex filter.
2Object-affected harmful factors
If filter lenses with high optical density are used to block harmful radiation, then eye protection is improved, but visible light transmission is reduced
Solution Approach 1:
Each filter lens is designed with specific optical density values tailored to its position in the optical path. The first filter lens has optical density values optimized for blocking harmful radiation at the entrance aperture, while the second filter lens has different optical density values optimized for the magnified image path. This allows localized optimization of filtering characteristics without uniformly reducing visible light transmission throughout the entire system.
3Object-affected harmful factors
If conventional 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 integrated directly into the magnification device housing, with the first and second filter lenses positioned within the device structure itself. This merging of the protective filtering function with the magnification function eliminates the need for separate laser safety glasses, providing both magnification and eye protection through a single unified device that is more comfortable and convenient to use.
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 electromagnetic radiation, providing enhanced eye protection while maintaining visible light transmission, thus preventing eye damage from laser exposure during medical or dental procedures.
Implementation Method 1
chemical additives or dyes or thin films may be added to a filter (in the form of a lens), which may be formed of polycarbonate, glass, or other suitable material, to match and consequently absorb the wavelength and power of the source of laser radiation
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 vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is disclosed. The magnification device including a housing having an objective lens at a distal end and an eye lens at a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal end, and one or more eye lenses adjacent the proximal end, the optical system producing a desired level of magnification and a filtering system having at least one of at least one first lens or at least one second lens, wherein an optical density of the at least one first lens and the optical density of the at least one second lens is determined based on a magnification level of the optical system and a position of the at least one of the at least one first lens and the at least one second lens with respect to at least one of: the objective lens and the eye lens.