| 摘要 |
A lens assembly is provided and includes: a plurality of lenses including a first lens located nearest to an object side of the lens assembly and a second lens located adjacent to the first lens; and a lens frame having a hollow part which includes an opening on each of an object side and an image forming side of the lens assembly and into which the plurality of lenses are inserted with their optical axes aligned. Liquid is sealed in a part between the first lens and the second lens.
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