Photoresistor 光敏電阻 link
A photoresistor or light dependent resistor or cadmium sulfide (CdS) cell is a resistor whose resistance decreases with increasing incident light intensity. It can also be referenced as a photoconductor.
CDS link
Cadmium sulfide is a chemical compound with the formula CdS. Cadmium sulfide is yellow in colour and is a semiconductor.[2] It exists in nature as two different minerals, hexagonal greenockite[2] and cubic hawleyite.[3] Cadmium sulfide is a direct band gap semiconductor (gap 2.42 eV[4]) and has many applications for example in light detectors. It forms thermally stable pigments and with the addition of e.g. CdTe, HgS colours ranging from deep red to yellow are formed.
Praktica SLR Light Meter Circuit link
Rolleiflex SL35 Light Meter Repair link
Rolleiflex SL35 light meter calibration link
Leica Camera Repair Handbook link
Wheatstone Bridge link
XCircuit link
TSL220 photo diode light meter link
沒有留言:
張貼留言