Can those modules be driven with the same drivers we use for flashlights? I know that the voltage is a bit too high for 1 li-ion, but apart from that, are lasers any different from leds to drive?
We bought modules without a pre-collimator lens on the phosphor. This makes them suitable for use with a reflector. Because of the small size of the emitting area (0.25mm2 i.e. one quarter of the size of a white flat1) you need a precise reflector to really make use of theses modules (electroformed reflectors and glass reflectors are probably needed).
The luminance of these modules is similar to that of a white flat LED with wavien collar. The benefit is that they are easier to use in a flashlight because there is no collar to align and large metal precision-reflectors are cheaper and much lighter compared to large glass precision-aspherics.
The bottom of this page gives instructions on driving a laser module. I’m not sure which ones are mandatory and which are best practice for longevity. Laser Drivers - DTR's Laser Shop
3.0 V -> 5 ma -> 0.03 lm
3.2 V -> 110 mA -> 0.3 lm
3.5 V -> 700 mA -> 120 lm
3.7 V -> 1.5 A -> 340 lm
4.0 V -> 2.8 A -> 470 lm (kühler) coolwhite
4.0 V -> 3.1 A -> 510 lm (wärmer) get warmer
Thanks for those links, that shop gives some nice compact basic information on how lasers must be driven.Although just as leds they must be current-driven, they are much more sensitive, spikes and inductances must be avoided, even when setting a current a dummy load must be used because turning a pot can damage a laser
Is a collar ever used on a LEP flashlight yet? Since the LES is so tiny, to get a significantly improved luminance the optical quality of the collar must be very good, and the positioning in all 3 dimensions extremely precise.
If you chop the front off a w30 the cone of light coming out is 68° with that number you can work out the focal length needed for a certain sized lens. Not sure of other but w30 has a small secondary lens close to the phosphor. I personally don’t think a single optic is any good and the secondary can be mirror or lens. S9 the short answer no but I have tried other lens.
I can’t stress what djozz said any more. We need pics and details!
From what I understanding, you cut the stock bezel off a W30, measured the emission angle through it’s first lens at 68°, then used a ~150mm lens with the proper focal length to utilize all of the emitted light and machined a custom bezel.