OPTICAL SYSTEM FOR PHOTOGRAPHING SIMULTANEOUSLY DUAL BAND INFRARED IMAGE USING MULTIPLE OPTICAL FIELDS

摘要

The present invention relates to an optical system for simultaneously photographing a duel-band wavelength image which can convert a dual-band wavelength infrared image for long-distance, mid-distance, and short-distance targets into three kinds of optical fields, and photographs a dual-band wavelength image which can be minimized and packaged, by using multiple optical fields. The optical system for simultaneously photographing a dual-band wavelength image by using multiple optical fields according to the present invention comprises: a first visible-near infrared detection unit (71) which photographs an image of a narrow optical field area of visible-near infrared light and mid-wavelength infrared light from dual-band infrared light including a mid-wavelength infrared band and a visible-near infrared band; a mid-wavelength infrared detection unit (72) which photographs an image of a mid-optical field of the mid-wavelength infrared band from the dual-band infrared light; and a second visible-near infrared detection unit (73) which photographs an image of a mid-optical field area of the visible-near infrared band from the dual-band infrared light.