Invention Grant
- Patent Title: Methods and systems for making an optical functional film
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Application No.: US17019243Application Date: 2020-09-12
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Publication No.: US11541616B2Publication Date: 2023-01-03
- Inventor: Roger Wen Yi Hsu , Daniel Hsu
- Applicant: Roger Wen Yi Hsu , Daniel Hsu
- Applicant Address: US CA Rancho Cucamonga; US CA Rancho Cucamonga
- Assignee: Roger Wen Yi Hsu,Daniel Hsu
- Current Assignee: Roger Wen Yi Hsu,Daniel Hsu
- Current Assignee Address: US CA Rancho Cucamonga; US CA Rancho Cucamonga
- Agency: Zhen Law Firm
- Agent Chris J. Zhen
- Main IPC: B29D11/00
- IPC: B29D11/00 ; G02C7/10 ; G02B1/08 ; G02C7/12 ; B29K29/00 ; B29K67/00

Abstract:
Methods and apparatus are provided for eyeglass lens made using a solution casting process. The method may include providing a first soluble polymer solution. The method may include providing a first dye solution including at least one dye. The method may include adding the first dye solution to the first soluble polymer solution to form a first dyed solution. The method may include casting the first dyed solution to form a first film. The method may include providing a second soluble polymer solution. The method may include providing a second dye solution comprising at least one dye. The method may include adding the second dye solution to the second soluble polymer solution to form a second dyed solution. The method may include casting the second dyed solution onto the first film to form a two-layer film. The method may include laminating or casting the two-layer film to the eyeglass lens.
Public/Granted literature
- US20210080753A1 METHODS AND SYSTEMS FOR MAKING AN OPTICAL FUNCTIONAL FILM Public/Granted day:2021-03-18
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