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20250231400. Optical Element, Optica (CANON KABUSHIKI KAISHA)

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OPTICAL ELEMENT, OPTICAL EQUIPMENT, IMAGE PICKUP APPARATUS, AND METHOD OF MANUFACTURING OPTICAL ELEMENT

Abstract: an optical element includes a glass base material including a first surface and a second surface opposed to the first surface, a resin portion provided on the first surface, and a light-shielding film configured to cover at least a part of a side surface of the glass base material and a part of the first surface. the second surface is an incident surface or an exit surface for light. a part of the light-shielding film is provided between the glass base material and the resin portion. a linear expansion coefficient of the light-shielding film is between a linear expansion coefficient of the glass base material and a linear expansion coefficient of the resin portion.

Inventor(s): MAMO MATSUMOTO

CPC Classification: G02B27/0025 (Optical systems or apparatus not provided for by any of the groups - ,)

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