Olympus Optical Company, Ltd.

Naoyuki Seo

Michio Shirai

Takae Harutake

Naohito Siga

Kaoru Ohyoshi

A device for retaining an optical part is disclosed, which comprises an optical element, a holding frame and an adhesive for fixing the optical element to the holding frame. The adhesive comprises an ultraviolet curing type adhesive containing 0.5-20% by weight of a filler.

Device for retaining an optical part

A device for retaining a lens by a lens holding frame is disclosed, which comprises a plurality of non-adhesion portions formed on an outer periphery of the lens an inner periphery of the frame, and an adhesive inserted into portions other than the non-adhesion portions between the lens and the frame.

Lens retaining device

A treating method for giving durability to an optical fiber bundle produced by bundling optical fibers respectively covered by acid-soluble glass, shielding both end portions thereof by acid-resisting material and dissolving and removing said acid-soluble glass at the middle portion by means of acid. That is, said optical fiber bundle is immersed in organic solvent containing antifriction agent and is subjected to ultrasonic oscillation for the purpose of removing sludge remaining in said optical fiber bundle and replacing said sludge with said antifriction agent.

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Hachioji, Japan

Naoyuki Seo