日本卡侬公司研制出测量电荷耦合器等固体摄象元件析象能力的装置。固体摄象元件如果在遇到光的时候发出电信号而在没有光照射时不发出电信号的话,其析象能力较高。但是,几乎所有的固体摄象元件在不受光照射时也输出电信号,析象能力较低。到目前为止,只能在实际使用中,由人来观测其电信号的输出才能制判断出固体摄象 Japan’s Canon company developed a solid-state imaging device such as charge-coupled device image resolution of the device. If the solid-state imaging element emits an electric signal when it encounters light and emits no electric signal when it is not irradiated with light, its resolution is high. However, almost all the solid-state image pickup elements output electric signals without being irradiated with light, and the resolution is low. So far, only in actual use, by the people to observe the output of the electrical signal can be made to judge the solid camera