Apparatus and methods for testing lens structure

Details Apparatus and methods for testing lens structure Apparatus and methods for testing lens structure

1982-07-19

1985-07-02

Rosenberger, R. A.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356125, G01B 900

Patent

active

045264678

ABSTRACT:
Apparatus and method for testing the optical throughput or efficiency of lens structures adapted to be used in pairs to make a connection between optical fibers by imaging one fiber end, serving as input, via the connector pair into the end of the other fiber end, serving as output. The apparatus comprises structure by which the output beam of a nominally perfect connector half is presented to a lens structure under test while a reflecting surface simulating a fiber end is positioned in the test structure under conditions of actual use. The simulating beam is focused by the test lens structure onto the reflecting surface after which it is reflected along a path travelling oppositely to its entering direction. Structure is provided for comparing the energy content of the beam emerging from the test structure with that presented to it whereby the optical efficiency of the lens structure is determined.

REFERENCES:
patent: 4033696 (1977-07-01), Nohda
patent: 4053231 (1977-10-01), Fletcher et al.
patent: 4183618 (1980-01-01), Rush et al.
patent: 4283139 (1981-08-01), Swope

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