Ca$io Optics

[Bradfo69]

Doing a brief search brought up a little about the dichros but, I picked up a couple of these with my order from DTR 'cause they were cheap.

https://sites.google.com/site/dtrlpf...-lenses-motors

However.... my dumb ass has no idea of what is usable in this little assembly for any other purpose. Front surface mirror I know but, anything else? Or is this unit just something to satisfy the burning need to dissect something? LOL

(Surprising how large these units are!)

[VDX]

... I'm using the lenses for focussing LED's or collimating+focussing diode-lasers ...

Viktor

[Bradfo69]

Humm... any pics of an example?

[norty303]

There are 2 usable dichros in there, type I and type II as Dan Briggs referred to them when he did the testing.

Here are the results of his testing:

Type I:

Pass: Blue,Red
Reflect: Green

Tests:
Pass 473nm: ~95%
Pass 640nm: ~96%
Reflect 532nm: ~95%

All tests performed at 45˚ angle of incidence.


Type II:

Pass: Blue
Reflect: Red, Green

Tests:
Pass 473nm: ~96%
Reflect 640nm: ~98.5%
Reflect 532nm: ~90%

All tests performed at 45˚ angle of incidence.

[VDX]

Humm... any pics of an example?

... try to make some in the next evenings or at weekend ...

Viktor

[Bradfo69]

No rush. I'm just curious as I haven't really worked with lenses for diodes yet and didn't know if they were actually of any use.

(Thanks Adam!)

[VDX]

... I've modified some of the Ca$ios to 'lampless', so I can inssert any light source like white 5Watt-LED's for BW operation (data-beamer or 3D-scanning) or a BluRay-UV-diodelaser or a 9Watt-405nm-LED for UV-resin 3D-printing ...

Viktor

[Photonbeam]

I used the type II for combining in my RB module and the type I for adding the green and they are outstanding. There are also some very efficient thin broadband mirrors that I believe are hard dielectric coatings, not aluminum - that will handle high power and are fairly easy to cut.