Invention Grant
- Patent Title: Tinted lens and method of making same
- Patent Title (中): 有色透镜及其制作方法
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Application No.: US11827893Application Date: 2007-07-13
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Publication No.: US07931369B2Publication Date: 2011-04-26
- Inventor: David Andrew Harris
- Applicant: David Andrew Harris
- Agency: Valauskas Corder LLC
- Main IPC: G02C7/04
- IPC: G02C7/04 ; G02C7/02

Abstract:
A lens and a method of making lenses suitable for color blindness correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to the desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. If desired, the dyes may be heated during immersion.
Public/Granted literature
- US20090015786A1 Tinted lens and method of making same Public/Granted day:2009-01-15
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