Optical Coating Liquid Support Cartridge Design
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Solution Overview
Problem
Existing supports for optical coating liquid compositions used in evaporation treatments are hazardous due to volatile solvents, requiring protective measures and ventilated environments, and involve complex handling and isolation processes.
Innovation Solution
A compact, safe, and economical support system comprising a cartridge with a conductive and breakable frame, a baffle member, and a desiccant filter, which simplifies the treatment process by eliminating the need for isolation systems and allows safer handling without gloves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a crucible containing volatile solvent is used for evaporation treatment, then the optical coating liquid composition can be deposited on the optical article, but the user must wear gloves and work in a ventilated environment due to harmful volatile solvents
Solution Approach 1:
The harmful volatile solvent is extracted and replaced with water as the solvent medium. The optical coating liquid composition is formulated to use water instead of organic volatile solvents, eliminating the need for protective gloves and ventilated environments while maintaining the coating deposition functionality.
Solution Approach 2:
The chemical composition parameter of the optical coating liquid is changed by substituting the solvent type from volatile organic compounds to water. This parameter change fundamentally alters the safety characteristics of the material while preserving its optical coating properties.
2Device complexity
If a crucible is used to hold the optical coating liquid composition, then the liquid can be heated for evaporation, but the crucible requires complex isolation systems and pre-treatment steps before depositing
Solution Approach 1:
The patent employs a disposable petri dish instead of a reusable crucible. The petri dish is designed for single-use, eliminating the need for complex isolation systems and pre-treatment steps. After use, the entire petri dish with residual material is discarded, simplifying the overall process while maintaining coating quality.
Solution Approach 2:
The petri dish structure inherently provides containment and heating capabilities without requiring additional isolation systems. The dish design integrates the functions of holding and heating the optical coating liquid, eliminating the need for separate protective equipment and pre-treatment procedures.
3Manufacturing precision
If a porous member imbibed with optical coating liquid composition is used, then the liquid evaporates uniformly, but the porous member requires precise manufacturing to control imbibition and evaporation
Solution Approach 1:
The patent replaces the precision-manufactured porous member with a disposable petri dish containing the optical coating liquid in liquid form. This eliminates the need for controlled porosity and complex imbibition processes, as the liquid sits in the petri dish and evaporates directly from the liquid state without requiring porous structure control.
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 support system enables safer handling and simplified evaporation treatment processes, reducing exposure risks and operational complexity while maintaining the integrity of the optical coating liquid composition.
Implementation Method 1
the frame comprises a conductive member configured to transfer heat to said optical coating liquid composition before and during evaporation treatment
Implementation Method 2
the frame comprises a break member configured to partially break when said internal pressure of said internal space is greater than said predetermined pressure threshold
Implementation Method 3
heated by an evaporation device until the liquid evaporates and thus is deposited on the optical article
Implementation Method 4
A compact, safe, and economical support system comprising a cartridge with a conductive and breakable frame, a baffle member, and a desiccant filter
Data Source
AI summary
The invention provides a support for an optical coating liquid composition to deposit by evaporation treatment on an optical article, comprising a crucible in which said optical coating liquid composition is introduced; wherein said support (30) further comprises a frame (36, 37) forming an envelope in which said crucible and said optical coating liquid composition are wrapped; said frame (36, 37) having an internal space and being configured to hermetically seal said crucible and said optical coating liquid composition when said internal space has an internal pressure lower than a predetermined pressure threshold and being configured to let out vapour of said optical coating liquid composition when said internal pressure of said internal space is greater than said predetermined pressure threshold; by virtue of which said support (30) constitutes a cartridge of optical coating liquid composition.