t1 photodiode with visible response
in [Embedded]
|
From: Hul Tytus on 26 Feb 2010 16:45 comp.arch.embedded t1 photodiode with visible response Anyone know of a photodiode with visible response in a t1 package. These devices with response limited to the infared are readily available but, curiously, not in the visible range. Hul
From: Jim Stewart on 26 Feb 2010 17:11 Hul Tytus wrote: > comp.arch.embedded > t1 photodiode with visible response > > Anyone know of a photodiode with visible response in a t1 package. These > devices with response limited to the infared are readily available but, > curiously, not in the visible range. Take a look at the Osram SFH 229. Even though it peaks at about 800nm, there's still a lot of meat on the response curve down in the visible range. I've had good luck using similar Osram photodiodes and red light to read markings. http://www.mouser.com/ProductDetail/OSRAM-Opto-Semiconductors/SFH-229/?qs=sGAEpiMZZMs50KUSuyRkpkb%2fEeIVJxap29ZjGeE2K84%3d
From: dbr on 26 Feb 2010 18:03 Thanks Jim. I'll look at it and see how it does. The objective is in the blue range, though, and that might be too far away. There is a surface mount device that is similar to the diode you've mentioned. Hul Jim Stewart <jstewart(a)jkmicro.com> wrote: > Hul Tytus wrote: > > comp.arch.embedded > > t1 photodiode with visible response > > > > Anyone know of a photodiode with visible response in a t1 package. These > > devices with response limited to the infared are readily available but, > > curiously, not in the visible range. > Take a look at the Osram SFH 229. Even > though it peaks at about 800nm, there's > still a lot of meat on the response curve > down in the visible range. > I've had good luck using similar Osram > photodiodes and red light to read markings. > http://www.mouser.com/ProductDetail/OSRAM-Opto-Semiconductors/SFH-229/?qs=sGAEpiMZZMs50KUSuyRkpkb%2fEeIVJxap29ZjGeE2K84%3d
From: Jim Stewart on 26 Feb 2010 18:49 dbr(a)kbrx.com wrote: > Thanks Jim. I'll look at it and see how it does. The objective is in the > blue range, though, and that might be too far away. There is a surface > mount device that is similar to the diode you've mentioned. Yup, used that part too. Good luck. > Hul > > Jim Stewart <jstewart(a)jkmicro.com> wrote: >> Hul Tytus wrote: >>> comp.arch.embedded >>> t1 photodiode with visible response >>> >>> Anyone know of a photodiode with visible response in a t1 package. These >>> devices with response limited to the infared are readily available but, >>> curiously, not in the visible range. > >> Take a look at the Osram SFH 229. Even >> though it peaks at about 800nm, there's >> still a lot of meat on the response curve >> down in the visible range. > >> I've had good luck using similar Osram >> photodiodes and red light to read markings. > >> http://www.mouser.com/ProductDetail/OSRAM-Opto-Semiconductors/SFH-229/?qs=sGAEpiMZZMs50KUSuyRkpkb%2fEeIVJxap29ZjGeE2K84%3d
|
Pages: 1 Prev: Heap terminology Next: ATtiny10, programmed and blinking |