JP2010268156A5 - - Google Patents

Claims (5)

Imaging means for converting light incident through an imaging lens having an aperture means whose aperture amount changes stepwise into an electrical signal;
The imaging sensitivity and electronic shutter speed of the imaging means, the aperture means are controlled, and the exposure time of the imaging means and the aperture drive time for operating the aperture means are exclusive within one frame period during moving image shooting. Control means to be assigned to
An imaging apparatus comprising: The imaging device according to claim 1,
The control means assigns the aperture driving time to an idle time that is a difference between the one frame period and the exposure time,
At least the imaging sensitivity of the imaging unit and the electronic shutter speed so that the idle time is a length that can be assigned the aperture driving time required to change the predetermined amount of the aperture of the aperture unit. A photographing apparatus, wherein one of the two is controlled to change the exposure time. The imaging device according to claim 2,
When the control means controls at least one of the imaging sensitivity and the electronic shutter speed of the imaging means so that the idle time is a length that can be assigned the diaphragm driving time, the opening amount of the diaphragm means When controlling in the direction of reducing the aperture, control is performed to increase the imaging sensitivity, and when controlling in the direction of opening the aperture of the aperture means, control is performed to increase the electronic shutter speed. apparatus. In the imaging device according to any one of claims 1 to 3,
The imaging means is composed of a plurality of pixel columns having different exposure start timings and end timings within the one frame period, and the exposure time is defined as the period from the first exposure start to the last exposure end of the plurality of pixel columns. An imaging device characterized by that. In the imaging device according to any one of claims 2 to 4,
The photographic lens is configured to be replaceably mounted , and has a storage means for storing a driving time required for the diaphragm means to change a predetermined amount of opening inside the photographic lens,
The imaging device according to claim 1, wherein the control means acquires the drive time from the storage means and calculates the aperture drive time .