Mitsubishi Pencil Company, Limited

Japan Aviation Electronics Industry, Limited

Yasuhiro Koike

Koike, Yasuhiro

Naohiko Moriya

Hitoshi Suzuki

Kiyoshi Iwamoto

Akihito Mitsui

Toshimi Kamitani

Toshitaka Torikai

Takayoshi Yamauchi

Hiroyuki Muto

Yojiro Sano

Hajime Sumitomo

Yasuaki Ogiwara

A writing implement having a pen tip that can achieve excellent ink outflow performance and an increase in the effective area of a viewer portion allowing recognition of the writing direction, relative to the whole pen tip. The writing implement is a writing implement A which includes a pen tipfeeding ink from a writing implement bodyand having a viewer portion through which the writing direction can be recognized, and is characterized in that the pen tipis configured of, a least, a writing partand a holding bodyhaving a viewer portion, and the holding portionhas a sheet-shaped ink feederformed with slits or bumps on the surface and inside thereof to produce a capillary action.

Writing implement

It is an object of the present invention to accurately maintain a positional relationship between a lens held in a holding member and an optical fiber without requiring any complicated operation. The invention includes a holder (), at one end of which a housing section () that houses a ball lens () is formed and at the other end of which an insertion hole () for inserting an optical fiber () is formed, and a magnet () provided outside in a direction crossing a housing direction of the ball lens at the one end of the holder, in which the magnet generates an attracting force for aligning a center of the ball lens with a center of an optical element provided in a coupling target.

Optical coupling member, optical connector and electric connector

It is an object of the present invention to simply position a lens and an optical fiber while suppressing an increase in cost. An optical coupling member includes an optical fiber (), a holder () that holds the optical fiber () inserted from an insertion hole () formed at one end, and a lens such as a collimator lens () accommodated in an accommodation section () formed at the other end of the holder (), in which positioning is performed by causing the lens and/or the end face of the optical fiber () to come into contact with a tapered surface provided at a position facing the lens () and the optical fiber () in a protruding portion () formed on an inner surface in the vicinity of the accommodation section () of the holder ().

Optical coupling member and optical connector using the same, and optical coupling member holding member

The present invention provides an optical coupling member and an optical connector using the optical coupling member, capable of improving the efficiency of an assembly work of the optical connector and positioning optical fibers in the optical connector with high accuracy. The optical coupling member () has: holding members () for being able to hold optical fibers () that are inserted from insertion holes () formed at end parts; lenses housed in housing parts formed at opposite end parts of the holding members (); and a joining member () for connecting the holding members () as aligned in parallel to each other, the joining member being formed of an elastic material.

Optical coupling member and optical connector using the same

An optical coupling member includes an optical fiber (), a holder () that holds the optical fiber inserted from an insertion hole () formed at one end, and a lens such as a collimator lens () accommodated in an accommodation section () formed at the other end of the holder (), the optical coupling member performing positioning by causing at least one of the lens and the end face of the optical fiber () to come into contact with an abutting surface () formed in the vicinity of the accommodation section () by providing a recess () on an outer circumference near the accommodation section () of the holder (), in which a plurality of the recesses () are provided on an identical plane orthogonal to an insertion direction of the optical fiber ().

In order to fix an optical fiber to a desired position in a holding member easily and tightly, provided is an optical collimator () having a plastic optical fiber () and a cylindrical holder (). The holder () is configured to hold a collimator lens () at an end and has an insertion hole () at an opposite end for inserting the plastic optical fiber (). The plastic optical fiber () is sandwiched by an inner surface of a recess () which is formed at a part of the holder () in proper alignment with the collimator lens ().

Optical collimator and optical connector using same

In order to facilitate positioning of a collimator lens and an optical fiber while preventing cost increase, provided is an optical collimator having a holder () which has a cylindrical shape and is made of metal; a collimator lens () which is housed in a housing part () formed at an end of the holder (); and an optical fiber () which is inserted via an insertion hole () formed at an opposite end of the holder () and is fixed at a predetermined position. At least one of the collimator lens () and an end surface of the optical fiber () is made to abut to a recess () formed in proximity of the housing part () of the holder () thereby to perform positioning.

Growing community of inventors

Yokohama, Japan

Naohiko Moriya