| 摘要 |
PURPOSE:To make it possible to extract the photoelectrically converted signals of any wavelength with the use of a simple circuit by using the address signals corresponding to the addess of the photoelectric converting unit of an image sensor. CONSTITUTION:The light which is scattered by a scattering optical element is condensed at a fixed position on an image sensor 24 thereby to generate a photoelectric converted signal in a time shearing manner. If, at this time, any wavelength is designated by a wavelength switch 34, this converting means 34 converts the output of the switch 34 into the value corresponding to the address of the phtoelectrically converting unit. On the other hand, a signal output circuit 32 synchronizes with the drive of the photoelectric converting unit to generate the address signals corresponding to the respective addresses. Those two signals are compared by a coincidence generating circuit 38 so that a coincidence signal is generated when coincidence takes place. Thus, it is possible to extract the photoelectric converting signals having any desired wavelength with the use of such simple circuit. |
