Mold-Release Gas Supply for Optical Element Shaping
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Solution Overview
Problem
Conventional methods for manufacturing optical elements, such as lenses and mirrors, face issues with surface roughness degradation and tarnishing due to fusion bonding between the glass material and molds, which affects the quality of the optical elements.
Innovation Solution
A manufacturing method and apparatus that supply a gas containing a mold-release acceleration substance, such as hydrocarbons or boron nitride, between molds to improve mold-release characteristics, preventing fusion bonding and surface degradation by controlling the temperature and flow rate of the gas during the heating and softening process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the glass material and mold are fusion-bonded to transform the glass into a desired shape, then the shaping process is effective, but the surface roughness of the mold degrades and tarnishing occurs
Solution Approach 1:
A mold-release gas is introduced as an intermediary substance between the glass material and mold. This gas forms a protective layer that prevents direct contact and fusion bonding between the glass and mold surfaces, thereby maintaining mold surface quality while still enabling effective shaping of the glass material
Solution Approach 2:
The mold-release gas creates an inert environment between the glass and mold, preventing the harmful fusion bonding process. This inert atmosphere allows the glass to be shaped effectively while protecting the mold surface from degradation and tarnishing
2Reliability
If plasma treatment is performed on the glass surface to improve mold-release characteristics, then fusion is prevented, but the process complexity increases
Solution Approach 1:
The invention replaces complex plasma treatment processes with a simpler gas supply system. Instead of using plasma generation equipment and complex surface treatment mechanisms, the patent employs a mold-release gas supply apparatus that achieves the same mold-release effect through a more straightforward process
Solution Approach 2:
The invention changes the approach from physical plasma treatment to chemical gas phase treatment. By controlling the parameters of the mold-release gas (such as hydrocarbon or halogenated hydrocarbon gases) and their delivery conditions, the system achieves effective mold release without requiring complex plasma generation equipment
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
This approach effectively prevents fusion bonding and tarnishing, maintaining the surface quality of the molds and enhancing the mold-release characteristics, resulting in improved optical element production with reduced defects.
Implementation Method 1
heating and softening the optical material by heating a heating and softening gas and supplying it to the space between the first and second molds
Implementation Method 2
supplying a gas containing a mold-release acceleration substance to the space between a first mold and a second mold which sandwich an optical material and face each other
Data Source
AI summary
A manufacturing method for manufacturing an optical element includes: supplying a gas containing a mold-release acceleration substance to the space between a first mold and a second mold which sandwich an optical material and face each other; and pressurizing and transforming the optical material by bringing the first and second molds relatively close to each other.