nikhilele
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photodiode with ir filter
what is sutiable material for covering ir photodiode and ir led used in proximity detector ckt.
for following purpose without affecting operation like range and sensitivity
1> protection from dust and humidty
2> protection from changes in ambient light
3> protection from bright light if it will fall on photodiode it will suprress the ir signal
ir photo-diode and ir led are place near to each other and seperated by a metal partition
and also in some ckt ir photodiode is replace with TSOP1738 ir reciever module from vishay.
i have seeen in vishay modules range increases as brightness of light in surrounding decreases.
and this is undesirable for us
what is sutiable material for covering ir photodiode and ir led used in proximity detector ckt.
for following purpose without affecting operation like range and sensitivity
1> protection from dust and humidty
2> protection from changes in ambient light
3> protection from bright light if it will fall on photodiode it will suprress the ir signal
ir photo-diode and ir led are place near to each other and seperated by a metal partition
and also in some ckt ir photodiode is replace with TSOP1738 ir reciever module from vishay.
i have seeen in vishay modules range increases as brightness of light in surrounding decreases.
and this is undesirable for us