| 摘要 |
IN A VIDEO PHOTOGRAPHING APPARATUS HAVING AN INFRARED RAYS AV TRANSMITTING FUNCTION, THERE ARE PROVIDED: EXCHANGING UNIT FOR MOVING THE INFRARED RAYS CUTTING FILTER SERVING AS A COMPONENT ELEMENT OF A CAMERA PORTION TO AN OUTSIDE OF AN OPTICAL PATH AND, IN PLACE OF IT, FOR ARRANGING THE INFRARED RAYS TRANSMITTING MATERIAL SUCH THAT THE OPTICAL PATH IS EQUIVALENT TO THAT OF THE INFRARED RAYS CUTTING FILTER ONTO THE OPTICAL PATH; SWITCHING UNIT FOR SWITCHING AN INFRARED RAYS EMITTING UNIT FOR INFRARED RAYS AV TRANSMISSION TO THE TURN-ON IN THE NON-MODULATING STATE; AND SENSITIVITY SWITCHING OPERATING UNIT FOR MAKING THE EXCHANGING UNIT AND THE SWITCHING UNIT OPERATIVE IN AN INTERLOCKING MANNER. (FIG. 1)
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