Two dimensional fiber collimator array with high return loss
AssigneeSchleifring und Apparatebau GmbH
InventorGregor Popp
Life of this patent
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Abstract
A lens system includes a body member holding at least one micro lens array. The micro lens array has a first surface with a plurality of micro lenses arranged in a row and a second surface opposing the first surface. The second surface is under an angle towards the first surface. Furthermore the lens system comprises either: (i) a plurality of ferrules enclosing end-portions of light waveguides, or (ii) a plurality of light waveguides without ferrules, wherein the ferrules or light waveguides are adhesively fastened in a spaced relationship from each other to the second surface of the micro lens array preferably by means of an adhesive, by bonding or by welding.
Claims8
A lens system comprising:
- a body member;
- at least one micro lens array being held in said body member;
- wherein said micro lens arrays have a first surface with a plurality of micro lenses arranged in a row and a second surface opposing the first surface under an oblique angle with optical fibers attached thereon in such a way that the distance from a micro lens to the location where the corresponding optical fiber is attached on the second surface is always the same for each micro lens of the row.
A rotary joint comprising:
- a derotating element having two sides for coupling light;
- at least one lens system on either side of the derotating element;
- the lens system having a body member and at least one micro lens array being held in said body member;
- wherein said micro lens arrays have a first surface with a plurality of micro lenses arranged in a row and a second surface opposing the first surface under an oblique angle with optical fibers attached thereon in such a way that the distance from a micro lens to the location where the corresponding optical fiber is attached on the second surface is always the same for each micro lens of the row.
Dependencies are inferred from the claim text.