【発明の名称】誘導光線のパワを制御する装置

Japanese Patent JPS6058425

B2

1517794 Missile guidance systems BOFORS AB 28 Aug 1975 [28 Aug 1974 4 Dec 1974] 35613/75 Heading G3N The power of a light beam in an optical missile guidance system is controlled in such a way that the beam is of low power until firing and the power of the beam is increased during flight of the missile. As described, a laser diode (1), Fig. 1 (not shown) is controlled by a pulser (2) controlled in turn by a servodevice (3) which compares a signal from a photo-detector (5) in the beam and a reference signal Fig. 3, from a control circuit (4) shown in Fig. 2. Before firing, transistor 8 is kept on by a negative signal applied to its base, whereby transistors 9, 10 are on, off respectively and a voltage Po is transmitted from the junction of resistors 15, 16 to servodevice 21. Upon firing, a positive signal is applied to transistor 8 to switch it off; capacitor 20 begins to charge and so transistor 9 begins to turn off. The voltage between resistors 15, 16 rises as shown in Fig. 3 until at time t 1 transistor 10 turns on, causing the output to servo 21 to remain constant at Pm.

RORUFU HERUGE BUROMU
SHUTEN HARARUDO RAGUNAA FUORUSUFUU
RARUSU ERITSUKU SUKAGERURUNTO

JP10446575A

December 19, 1985

August 27, 1975

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BOFORS AB

F41G7/26; G01S1/42; G01S1/70; G05D1/12; (IPC1-7): G01S1/70; F41G7/26

Adachi Tsugitada

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