| 摘要 |
A method and a device (12) for the combination of a first and second incident beam of rays (14, 16), in particular in an optical instrument for the forensic investigation of preparations, whereby the beams of rays (14,16) interact with a beam splitter layer (32) to form first and second partial beams (14r, 14t, 16r, 16t) and the partial beams (14r, 14t, 16r, 16t) are superimposed to give a third emitted beam of rays (18) are characterised in that a further beam splitter layer (34) is provided, with which the first and second partial beams (14r, 14t, 16r, 16t) of the first and second beams of rays (14, 16) interact, such that, in the emitted third beam of rays (18), the number of occurring reflections and transmissions of the partial beans (14r, 14t) of the first beam of rays is essentially the same as the number of occurring reflections and transmissions of the partial beams (16r, 16t) of the second beam of rays (16).
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