Importance

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Abstract

An optical apparatus includes a lens, a lens holding member configured to hold the lens, an imaging device configured to receive light that has passed through the lens at an imaging plane of the imaging device to convert the received light into an electrical signal, and a device holder configured to hold the imaging device, the lens, the lens holding member, the imaging device, and the device holder being integrally formed in the optical apparatus, wherein the device holder holds a surface of the imaging device, the surface being different from the imaging plane and a surface opposite to the imaging plane, wherein the device holder includes, in order from the lens in an optical path direction, a first member containing a first material, and a second member containing a second material, and wherein a linear expansion coefficient of the first material is larger than that of the second material.

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First Claim