BEAM SPLITTING PRISMS

An optical colour separating arrangement comprising a first plane colour-selective dichroic semi-reflector inclined at an angle of incidence alpha to the axis of the beam incident on said semi-reflector, alpha being less than 30 DEG , a second plane colour-selective dichroic semi-reflector inclined...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	FAWCETT J,GB, WHITEHEAD G,GB, COOK G,GB
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An optical colour separating arrangement comprising a first plane colour-selective dichroic semi-reflector inclined at an angle of incidence alpha to the axis of the beam incident on said semi-reflector, alpha being less than 30 DEG , a second plane colour-selective dichroic semi-reflector inclined at an angle of incidence beta to the axis of the beam transmitted through the first semi-reflector, beta lying between 20 DEG and 50 DEG and being greater than alpha , a single plane total-reflector receiving the reflected beam from the second semi-reflector 0and directing said beam along an axis at least approximately parallel to the axis of the transmitted beam, and at least one total reflector for the beam reflected from the first semi-reflector, the arrangement being such that all the colour constituents undergo either zero or an even number of reflections.