US 2010/0076106 A1 · OPTICAL MATERIAL AND OPTICAL ELEMENT

Abstract

Provided is an optical material which has a high transmittance, a high refractive index, a low Abbe constant, a high secondary dispersion property, and a low water absorption rate. The optical material includes a polymer of a mixture which contains: a sulfur-containing compound represented by the following general formula (1): a sulfur-containing compound represented by the following general formula (2): and an energy polymerization initiator, in which a content of the sulfur-containing compound represented by the chemical formula-2 is 10% by weight or more to 60% by weight or less, an Abbe constant (νd) of the polymer of the mixture satisfies 18<νd<23, and a secondary dispersion property (θg,F) thereof satisfies 0.68<θg,F<0.69.

Claims4

Dependent claims

An optical material comprising a polymer of a mixture of:

a sulfur-containing compound represented by the following general formula (1):
where R1 is —X1—COCR2═CH2 or —X1—CH═CH2, R2 is H or CH3, X1 is O or S, and n is an integer of 1 to 4;
a sulfur-containing compound represented by the following general formula (2):
where R3 is —S—CH═CH2 or —CH═CH2;
and
an energy polymerization initiator,
wherein a content of the sulfur-containing compound represented by the general formula (2) is 10% by weight or more to 60% by weight or less, an Abbe constant νd of the polymer of the mixture satisfies 18<νd<23, and a secondary dispersion property θg,F thereof satisfies 0.68<θg,F<0.69.

4 more elements

Dependencies are inferred from the claim text.

Optical material and optical element

Life of this patent

Optical material and optical element

Life of this patent

Abstract

Claims4