| 摘要 |
<p>A fundus camera for performing fluorescent image pickup is provided. A timer means is started when a fluorescent agent is infused into a body, and a mode of an amplifying ratio control part is set to AGC. AGC is then checked, and fluorescent illuminance curves of respective eyes to be examined are calculated, if the AGC is operating. A fluorescent illuminance value at a fundus is calculated from a gain value on the AGC and a corresponding time which are stored in an amplifying ratio memory, thereby determining a proper exposure value. When the AGC is not operating, the fluorescent illuminance value is calculated from the calculated illuminance curves of the respective eyes to be examined and an output of a timer means, thereby determining a proper exposure value. When an image pickup switch is depressed while observing an image, input from the image pickup switch is detected. After an observation light source is turned off, a fixed gain value of the amplifying ratio control part is set to the obtained value. An image pickup light intensity is set to the obtained fixed gain. A light emission instruction is outputted to an image pickup light source to perform image pickup. <IMAGE></p> |
