Display lighting device

Details Display lighting device Display lighting device

1993-01-21

1995-01-31

Gray, David M.

35428912, G03B 726

Patent

active

053862651

ABSTRACT:
A display lighting device for each of a camera and an accessory equipment of the camera performs the interlocking turning on or turning off operation between the lighting units of the camera and the accessory equipment.
When receiving a turning On signal from an operating member of the camera or receiving a turning on command from the accessory equipment through a communication circuit, the display lighting device for the camera turns on the lighting unit of the display unit, and at the same time transmits a turning on command to the accessory equipment through the communication circuit. The lighting unit of the accessory equipment is turned on when the turning on command is received thereby. In addition, when receiving a turning off signal from the operating member of the camera or receiving a turning off command from the accessory equipment through the communication circuit, the display lighting device for the camera turns off the lighting unit of the display unit, and at the same time transmits a turning off command to the accessory equipment through the communication circuit. The lighting unit of the accessory equipment is turned off when the turning off command is received thereby.

REFERENCES:
patent: 5049917 (1991-09-01), Yasukawa et al.

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