The first RGB beam splitters:
An angle of incidence：45Degree
S1：AR 532nm T〉97%，AR473nm T>99%
S2: HR 600-700nm, R>95%,
AR532nm and AR473nm ,T〉95%
Dia 15x2mm

The second  RGB beam splitters:

An angle of incidence：45Degree
S1: AR 532nm T>97%
S2: AR 532nm T>97%, HR 473nm R>95%
dia15x2mm