Maxell, Ltd.

Yusuke Baba

Yasushi Kato

Akira Inaba

Hiroyuki Hirama

A lens unit that includes an optical element including at least a lens group in which a plurality of lenses are arranged along an optical axis; and a cylindrical lens barrel having an inner accommodation space for accommodating and holding the optical element, and the lens group includes a first lens located closest to the object side thereof; and a second lens adjacent to the first lens on the image side thereof, and optical elements and/or the optical element and the lens barrel are bonded to each other in an airtight state, such that an inter-lens space between the first lens and the second lens is sealed to the outside.

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Kyoto, Japan

Yusuke Baba