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AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHiroki Yoshikawa, Masatoshi Ishii, Shigeru Konishi, Toru Shirasaki
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There is provided A method for producing an optical device by bonding optical elements each other without using adhesive wherein the optical elements are bonded each other by using optical elements in which the relation between linear expansion coefficients α1 and α2 (/° C.) of each of the optical elements to be bonded and thickness t2 (m) of one of the optical elements satisfies the following formula: |(α1−α2)×t2|≦10−9 and t2≧2×10−5; and/or, by sticking the optical elements each other in the state of being heated, and then subjecting them to a heat treatment. There can be provided a small size and highly reliable optical devise by bonding optical elements each other without using an adhesive at a low cost.
A method for producing an optical device by bonding optical elements each other without using adhesive wherein the optical elements are bonded to each other
An optical device formed by bonding a polarizer to at least one surface of a magnetic garnet crystal without using adhesive which functions by transmitting light through the bonded surface, wherein the relation between linear expansion coefficient α1 (/° C.) of the magnetic garnet crystal, linear expansion coefficient α2 (/° C.) of the polarizer and thickness t2 (m) of the polarizer satisfies the following formula:
A method for producing an optical device by bonding a polarizer to at least one surface of a magnetic garnet crystal without using adhesive wherein the bonding is performed by using the magnetic garnet crystal and the polarizer in which the relation between linear expansion coefficient α1 (/° C.) of the magnetic garnet crystal, linear expansion coefficient α2 (/° C.) of the polarizer, and thickness t2 (m) of the polarizer satisfies the following formula:
Dependencies are inferred from the claim text.