OPTICAL ELEMENT MANUFACTURING METHOD, OPTICAL ELEMENT, OPTICAL APPARATUS, AND IMAGE CAPTURING APPARATUS
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Oct 7, 2024
filing date -
Oct 7, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A method of manufacturing an optical element includes preparing a first transparent base having a d-line refractive index of 1.80 or more and a second transparent base having a d-line refractive index of 1.80 or more, coating an adhesive on the first transparent base and/or the second transparent base, the adhesive containing a photo-curable resin and a photopolymerization initiator having an absorption edge wavelength of 410 nm or more, and bonding the first transparent base and the second transparent base by irradiating the adhesive with light with a wavelength of 400 nm or more through the second transparent base to cure the adhesive.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C09J:ADHESIVES; ADHESIVE PROCESSES IN GENERAL
- C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....
- H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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