dichroic

Presumably, the exotic part of the beamsplitter is that the dichroic filter must be a bandpass filter with a very narrow passband around 596nm.

For Lippmann photographs, the camera has removed most of the perspective information and the dichroic or interference filtering of the gratings is the primary effect.

A Dichroic Filter is an example of what you describe.

The thing does the real work there is the dichroic thin film coating on those prism shaped glass.

It's just a dichroic beamsplitter, which is a standard optical element available from online sellers.

We could even use a dichroic filter to send part of the blue peak back for another trip through the phosphor.

On the other hand the coating isn't a notch filter, it's a series of bandpass/notch/dichroic/whatever filters which are optimised for colour blindness.

The dichroic prism uses combinations of coatings to separate RGB into different optical paths.

Bank UI authors: Management wanted a pretty UI, so we made a semi-attractive chalice out of Roman dichroic glass.

Would DLP projectors which distribute color over time (a color wheel) or multiple light sources combined with dichroic filters, produce uniform squares of color?

Right, I wonder if they considered a pulse-detector with a dichroic filter and a 555?

Creatives: look at this beautiful chalice made of Roman dichroic glass.

We know how to make dichroic prisms (Technicolor used them when filming, as did "3 CCD" digital cameras), but I imagine that to have a sufficiently narrow rejection band for the sodium-vapor prociess, you would need to be smart about where you place the prism, since the stop-band of a dichroic filter changes with angle of incidence.

Dichroic mirrors were (and still are) more common on projectors.