| 摘要 |
PROBLEM TO BE SOLVED: To provide a photographic lens unit and an operation control method of the photographic lens unit which prevents a large current from instantaneously flowing through the photographic lens unit. SOLUTION: CPU boards 10 to 21 which are independent from one another and equipped with CPUs are interconnected via a network line. When a camera body 41 is mounted to a photographic lens unit 1, power is supplied from the camera body 41 to a power management CPU board 10. The power is supplied to an iris control CPU board 19 first, to a focus control CPU board 18 next, and successively to a zoom control CPU board 17. This prevents a large current from instantaneously flowing due to simultaneous supply of the power to the CPU boards 17 to 19. COPYRIGHT: (C)2013,JPO&INPIT |
