Arrangement for visualizing the cores of optical waveguides

Claim 2

An optical fiber apparatus comprising: an optical waveguide having a core therein; an irradiation source mounted adjacent said waveguide to provide light rays to said waveguide along mutually perpendicular light paths which pass through said waveguide; two optical elements, each positioned in a respective light path between said irradiation source and said waveguide, each of said elements receiving light rays from said respective source and transmitting the rays in a parallel bundle to said waveguide; two rod lenses, each being positioned in a respective light ray path emerging from said waveguide; and means for deflecting the light rays emerging from said rod lenses so that the lengths of the light paths of both rays are substantially the same and produce two adjacent images in order to determine the spatial position of the waveguide and the core.

Claim 3

The apparatus as claimed in claim 1, wherein said rod lenses are designed as cylindrical lenses.

Claim 4

The apparatus as claimed in claim 2, wherein each of said rod lenses has two oppositely arranged flat extensions extending in the longitudinal direction.

Claim 5

The apparatus as claimed in claim 1, wherein said rod lenses are designed as planoconvex lenses.

Claim 6

The apparatus as claimed in claim 1, wherein said rod lenses are designed as biconvex lenses.

Claim 7

The apparatus as claimed in claim 1, wherein said rod lenses are designed as aspherical lenses.

Claim 8

The apparatus as claimed in claim 1, wherein said deflecting means includes a beam splitter cube and two prisms which are each disposed on one surface of said beam splitter cube.

Claim 9

The apparatus as claimed in claim 7, wherein said prisms have different configurations.

Claim 10

The apparatus as claimed in claim 7, wherein said prisms are made from materials having different refractive indices.

Claim 11

The apparatus as claimed in claim 7, wherein one of said prisms has a light entry surface and wherein said deflecting means further includes, a plano-parallel glass plate disposed in front of said surface.

Claim 12

The apparatus as claimed in claim 1, wherein said deflecting means includes two parallel mirrors facing one another with their reflecting surfaces.

Claim 13

The apparatus as claimed in claim 11, wherein said deflecting means further includes a beam splitter foil between said mirrors and, in the path of the light rays, a plano-parallel glass plate disposed in front of one of said plane mirrors perpendicularly to the light rays.

Claim 14

The apparatus as claimed in claim 11, wherein said deflecting means further includes a beam splitter plate disposed between the plane mirrors and parallel in relation thereto.

Claim 15

The apparatus as claimed in claim 1, wherein said deflecting means includes two plane mirrors which are edgewisely adjacent and disposed at an angle of 135° in relation to one another.

Claim 16

The apparatus as claimed in claim 1, wherein said deflecting means includes a roof prism which is silvered on the roof faces, with the rod lenses being applied to the base of the roof prism.

Claim 17

The apparatus as claimed in claim 1, wherein the light entry surfaces of the deflecting means are provided with an optical antireflection coating.

Claim 18

The apparatus as claimed in claim 1, wherein said irridiation source includes a monchromatic light.

Claim 19

An arrangement as claimed in claim 1 characterized in that for the illumination from two mutually perpendicular directions, there is provided one single light source (4).

Claim 20

The apparatus of claim 1 further comprising: an additional optical waveguide having a core therein; an additional irradiation source mounted adjacent said additional waveguide to provide light rays to said additional waveguide along mutually perpendicular light paths which pass through said waveguide; two additional optical elements, each positioned in a respective light path between said irradiation additional source and said additional waveguide, each of said additional elements receiving light rays from said respective source and transmitting the rays in a parallel bundle to said additional waveguide; two additional rod lenses, each being positioned in a respective light ray path emerging from said additional waveguide; and means for deflecting the light rays emerging from said additional rod lenses so that the lengths of the light paths of both rays are substantially the same and produce two adjacent images, in order to mutually adjust the cores of said optical waveguide and said additional optical waveguide.