cadmium sulphide การใช้

• It consisted of two layers of phosphor in the CRT screen, a quick-reacting layer of zinc sulphide below, and a slower " afterglow " layer of zinc cadmium sulphide on top.
• During normal operation the bright blue signal from the zinc sulphide was visible, and its signal would activate the yellow zinc cadmium sulphide layer, causing an " averaged " signal to be displayed in yellow.
• It has a " cold " accessory shoe and the meter accepted film speeds from 12 to 400 ASA . Light levels are measured using a cadmium sulphide ( CdS ) photoresistor and powered by a mercury battery.
• Inexpensive cadmium sulphide cells can be found in many consumer items such as camera light meters, clock radios, alarm devices ( as the detector for a light beam ), nightlights, outdoor clocks, solar street lamps and solar road studs, etc.
• The programme reported on the high incidence of oesophageal cancer in the Norfolk area and the possible link with secret experiments carried out in the 1960s, when the Ministry of Defence sprayed quantities of the poisonous chemical zinc cadmium sulphide into the air above Norfolk.