摘要:
An oscillation device in which a semiconductor element is light emissive and exhibits a negative resistance characteristic is used, and more particularly an oscillation device in which the oscillation operation or switching operation of semiconductor light emitting element having a current controlled type regative resistance characteristic is utilized in order to derive therefrom a light output at normal temperature.
摘要:
IN THE BEAM SCANNER DISCLOSED HEREIN, A CAPACITANCE WHICH INCLUDES THE CAPACITY BETWEEN A PAIR OF BEAM DEFLECTION PLATES IS CHARGED AT A CONSTANT RATE BY A FEEDBACK CURRENT SUPPLY THEREBY TO OBTAIN A SUBSTANTIALLY LINEAR SCANNING OF THE BEAM. WHEN THE DEFLECTION PLATE VOLTASGE REACHES A
PRESELECTED LEVEL, THE DIRECTION OF APPLICATION OF THE APPLIED CURRENT IS REVERSED SO AS TO REVERSE THE SCAN.