Fuji Photo Optical Co., Ltd.

Hiroshi Shibamoto

Masane Suzuki

Shigeo Mizukawa

Motonori Kanaya

Shigenori Ohi

Toshikazu Akaogi

Kenichi Noguchi

Yukio Kondou

A support apparatus for an optical wave interferometer reference plate comprises a support member for supporting an outer peripheral face of the reference plate. The support member is bonded to the outer peripheral face of the reference plate at a plurality of positions spaced from each other along the circumferential direction of the outer peripheral face and adapted to deform elastically in a circumferential/diametric direction of the reference plate but less in the optical axis direction of the reference plate than in the circumferential/diametric direction.

Support apparatus for optical wave interferometer reference plate

An O ring having an inside diameter slightly smaller than the diameter of a reference plate is wound about the reference plate at an outer peripheral face position aligning with a neutral plane of the reference plate , and the O ring and the outer peripheral face of the reference plate are uniformly bonded and secured together with an adhesive Subsequently, the reference plate wound with the O ring is inserted into an attachment to be mounted to the main body of an interferometer, by way of an opening of the attachment After it is confirmed that the O ring is stably in contact with the abutment of the attachment and that reference plate is not directly in contact with the attachment a pressure ring is caused to press and secure the O ring . Thus, the reference plate is prevented from deforming when being attached to the main body of the interferometer, and from rotating with respect to the optical axis thereafter, whereby interference fringes can be measured with a high accuracy and favorable reproducibility.

Method of supporting reference plate for lightwave interferometer

A laser interferometer for inspecting the surface condition of a specimen by irradiating the specimen on a specimen support mechanism with a laser beam projected thereto through a reference plate, and observing the interference fringe produced by interference between reflected light from a reference surface of the reference plate and a surface of the specimen under inspection, the laser interferometer includes: an interferometer housing accommodating therein an optical laser beam guide member and an optical interference fringe imaging member, and is provided with a laser beam guide portion in a wall portion thereof; a laser tube mount member of a cylindrical form projected on the outer side of the housing and positioned in such a manner so as to circumvent the laser guide portion; and a laser tube detachably fitted in the laser tube mount member.

Laser interferometer for inspecting the surface of a specimen

A laser vascular anastomosis apparatus comprising a fiber probe with a conical tip formed at its distal end for transmitting therethrough an applying laser rays to butted vascular ends to be joined. The probe is inserted through the wall of one of vascular ducts to be anastomosed and then the conical tip is positioned inside the butt joint. The conical tip serves to reflect laser rays incident upon its wall once by total internal reflection and then to allow the reflected laser rays to emanate from the tip, passing through the opposite wall thereof so as to form annular sheath of laser rays which are applied to the annular inside wall of the butted portion of the vascular ducts to be anastomosed.

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Saitama, Japan

Hiroshi Shibamoto