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US 10,288,833 B2Granted
Optical component, optical component manufacturing method, and camera
AssigneeCanon Kabushiki Kaisha
InventorShusuke Tobita
Life of this patent
Estimating the term…
Abstract
A portion of a holder is in contact with a lens surface, a holding portion configured to hold a lens in the holder is provided, and a mold shrinkage factor of a material that forms the holder is smaller than a mold shrinkage factor of a material that forms the lens by no less than 0.3%.
Claims11
An optical component comprising:
- a lens having a lens surface held in a holder;
- a portion of the holder in contact with the lens surface;
- and
- a holding portion configured to hold the lens in the holder,
- wherein a mold shrinkage factor of a material that forms the holder is smaller than a mold shrinkage factor of a material that forms the lens by no less than 0.3%.
2 more elements
A camera comprising:
- an optical component including a lens that has a lens surface and that is held in a holder,
- a portion of the holder in contact with the lens surface, and
- a holding portion configured to hold the lens in the holder is provided,
- wherein a mold shrinkage factor of a material that forms the holder is smaller than a mold shrinkage factor of a material that forms the lens by no less than 0.3%.
1 more element
An optical component manufacturing method for manufacturing an optical component in which a lens is held in a holder by:
- injecting a molten resin into a cavity in a mold, wherein:
- the holder includes a front surface, a back surface, an outer peripheral surface, and an inner peripheral surface, and the front surface and the outer peripheral surface are made to be in contact with the mold to constitute a portion of the cavity;
- and
- a mold shrinkage factor of a material that forms the holder is smaller than a mold shrinkage factor of the molten resin by no less than 0.3%.
1 more element
Dependencies are inferred from the claim text.