Light and heat sensing. 

 - New York :   The Macmillan Company,   1963. 
 - p. 457 
<br/><br/><label>Subjects--Topical Terms: </label><br/>OPTICA<br/>INSTRUMENTOS OPTICOS<br/>ONDAS HERZIANAS<br/>LUZ<br/>IMAGEN
<br/><br/><label>Universal Decimal Class. No.: </label>535