Optical composite material and optical element
AssigneeCanon Kabushiki Kaisha
InventorsYasuhiro Tanaka, Katsumoto Hosokawa, Kazutaka Takeuchi
Life of this patent
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Abstract
Provided is an optical synthetic resin composed of: a synthetic resin; and fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less, each having a maximum length of 1 nm or more to 30 nm or less, in which part of surfaces of the fine particles are modified with functional groups which themselves repel each other, and a distance between two arbitrary adjacent fine particles among the fine particles is in a range of 0.1 nm or more to 500 nm or less. The two arbitrary adjacent fine particles attract each other with an intermolecular force, thereby making it possible to provide an optical composite deviating from an additivity range.
Claims16
An optical synthetic resin comprising:
- a synthetic resin;
- and
- fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less and each having a maximum length of 1 nm or more to 30 nm or less,
- wherein parts of surfaces of the fine particles are modified with functional groups which themselves bond each other with a chemical bond, and a distance between two arbitrary adjacent fine particles among the fine particles is 0.1 nm or more to 500 nm or less.
13-19. (canceled)
An optical synthetic resin comprising:
- a synthetic resin;
- and
- fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less and each having a maximum length of 1 nm or more to 30 nm or less,
- wherein surfaces of the fine particles are modified with functional groups, a distance between two arbitrary adjacent fine particles among the fine particles is 0.1 nm or more to 500 nm or less, and an elastic modulus of the optical synthetic resin is twice or more as high as an elastic modulus of the synthetic resin.
An optical synthetic resin comprising:
- a synthetic resin;
- and
- fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less and each having a maximum length of 1 nm or more to 30 nm or less,
- wherein surfaces of the fine particles are modified with functional groups, a distance between two arbitrary adjacent fine particles among the fine particles is 0.1 nm or more to 500 nm or less, and a coefficient of thermal expansion of the optical synthetic resin is half of or less than a coefficient of thermal expansion of the synthetic resin.
An optical synthetic resin comprising:
- a synthetic resin;
- and
- fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less and each having a maximum length of 1 nm or more to 30 nm or less,
- wherein surfaces of the fine particles are modified with functional groups, a distance between two arbitrary adjacent fine particles among the fine particles is 0.1 nm or more to 500 nm or less, and a coefficient of water absorption of the optical synthetic resin is half of or less than a coefficient of water absorption of the synthetic resin.
Dependencies are inferred from the claim text.