Eccentric fiber optic adjustable holder

An adjustable holder for securing an optical fiber comprising:

• an end disc having an eccentric hole therein for receiving one end of the fiber;
• a tubular member having said end disc disposed in one end thereof;
• a threaded collet having an eccentric hole disposed therein into which said tubular member is slidably disposed;
• and
• a tapered nut adapted to thread onto said threaded collet to secure said tubular member in a selected one of a plurality of variable positions relative to said collet.

An adjustable fiber optic holder which provides for both longitudinal and radial adjustment of a length of optical fiber disposed therein, said holder comprising:

• an end disc having an eccentric hole disposed therein into which is disposed one end of said optical fiber;
• a tubular member having said end disc disposed in one end thereof and said optical fiber extending therethrough;
• a threaded collet having an eccentric opening disposed therein into which said tubular member is slidably mounted;
• a tapered nut threaded onto said collet and adapted to secure said tubular member in a fixed position relative to said collet;
• and
• a housing for rotatably mounting the collet;
• whereby relative rotational motion between said tubular member and said collet and between the collet and said housing provides for radial adjustment of said fiber end because of the relative eccentricities of holes in said collet and said end disc, and whereby relative longitudinal motion of said tubular member with respect to said collet and said tapered nut provides for longitudinal adjustment of the fiber.

An adjustable fiber optic holder for use with an optical system which focuses light energy onto an end of an optical fiber wherein the position of said fiber must be adjusted to receive the focused energy, said holder comprising:

• an end disc having an eccentric hole therein into which is disposed said one end of the fiber;
• a tubular member having said end disc disposed in one end thereof and having the fiber extending therethrough;
• a threaded collet having an eccentric hole disposed therein into which said tubular member is slidably and rotatably mounted;
• a tapered nut threadable onto said collet for securing the tubular member in a fixed position, both rotationally and longitudinally, relative to said collet;
• a housing for rotatably mounting the collet;
• and
• a jam nut for locking the collet against rotation relative to the housing.

An adjustable fiber optic holder comprising:

• a hollow elongated tubular member for holding an optical fiber flush mounted with the end thereof in a position radially offset from the axis of the tubular member;
• a second member having an opening offset from its longitudinal axis for receiving the tubular member therein, the tubular member being axially slidable within said opening;
• a housing for encasing the second member while permitting relative rotational movement thereof;
• first releasable locking means for locking the tubular member in a selected one of a plurality of positions axially related to the second member;
• and
• second releasable locking means for locking the second member in an assumed position relative to the housing.

A method of mounting an optical fiber for adjustable positioning relative to a housing comprising the steps of:

• flush mounting a first end of the fiber in an eccentrically located opening in the end of a tubular member;
• slidably mounting the tubular member in an eccentrically located opening in a second member which is rotatable relative to a housing;
• rotating the tubular member relative to the second member and the second member relative to the housing to position the first end of the fiber at a selected location within a circle of radius exceeding the eccentric displacement of either the tubular member opening from the axis of the tubular member or the second member opening from the axis of the second member taken individually;
• adjusting the longitudinal position of the tubular member relative to the second member;
• and
• locking the tubular member against movement relative to the second member.