JP2559442B

PURPOSE:To simultaneously photograph images by both 1st and 2nd optical systems by constituting the title system of the 1st and the 2nd optical systems which form the image of an object on a sensor and a means for shielding a part of the optical path of the 1st optical system. CONSTITUTION:A main lens system 3 which is a zoom lens and the sensor 2 are arranged so that the optical axis of the main lens system 3 and the center of the sensor 2 coincide with each other and the image is formed on the entire screen size of the sensor 2. A sub-lens system 4 for obtaining a subscreen forms the image on a part of the effective screen size of the sensor 2 through a reflecting mirror 6 and the reflecting mirror 6 is used also as a shielding plate for shielding a part of a light beam from the main lens system 3 which is formed into the image. Thus, the subscreen 9 projected by the sub-lens system 4 is displayed on apart of a main screen 8 which is projected by the main lens system 3 on the screen of a receiver 7 respectively. Then, specified information and ambient information can be simultaneously photographed and recorded on one screen without using plural cameras or plural image pickup elements and also adding an image synthesis processing circuit.