Method and device for manufacturing spectacle lens
JP2025148104A5Pending Publication Date: 2026-06-03HOYA LENS THAILAND LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- HOYA LENS THAILAND LTD
- Filing Date
- 2024-03-25
- Publication Date
- 2026-06-03
AI Technical Summary
Technical Problem
The film thickness adjustment of coating liquid on eyeglass lenses is not properly adjusted due to variations in the state of the coating liquid, leading to inconsistencies.
Method used
A method and apparatus that measure the temperature of the lens surface, apply a coating liquid, and adjust the film thickness by rotating the lens substrate around its thickness direction, determining rotation time and speed based on temperature information to ensure uniform film thickness.
Benefits of technology
The film thickness of the coating liquid is satisfactorily adjusted, resulting in a simple and effective manufacturing process.
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Smart Images
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Abstract
To provide a method and a device for manufacturing a spectacle lens on which it is possible to favorably adjust the film thickness of a coating liquid.SOLUTION: A method for manufacturing a spectacle lens comprises: a temperature measurement step for measuring the temperature of a lens surface L1 of a lens base material L; a coating step for applying a coating liquid to the lens surface L1 after the temperature measurement step; and a film thickness adjustment step for adjusting the film thickness of the coating liquid on the lens surface L1 by rotating the lens base material L after the coating step. In the film thickness adjustment step, the rotation time and / or the rotation speed of the lens base material L is determined on the basis of temperature information of the lens surface L1 acquired in the temperature measurement step, and the lens base material L is rotated.SELECTED DRAWING: Figure 1
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