IMAGING OPTICAL SYSTEM, IMAGING DEVICE AND IMAGING SYSTEM

• Main Authors: SAWAGUCHI, Satoshi, TANAKA, Tomonori, IMAE, Nozomi, IRINO, Yoshiaki, SATOH, Hiroyuki, TERAO, Noriyuki, YAMAMOTO, Hideaki, BESSHO, Daisuke, SHOHARA, Makoto, MASUDA, Kensuke, HARADA, Toru, TAKENAKA, Hirokazu
• Format: Patent
• Language: English; French; German
• Published: 11.03.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

An imaging device includes two imaging optical systems each of the imaging optical systems including a wide-angle lens having an angle of view wider than 180 degrees, and an imaging sensor configured to image an image by the wide-angle lens, so as to obtain an image in a solid angle of 4π radian by synthesizing the images by the respective imaging optical systems, wherein the wide-angle lens of each of the imaging optical systems includes, in order from an object side to an image side, a front group having a negative power, a reflection surface and a back group having a positive power, and is configured to bend an optical axis of the front group by the reflection surface at 90 degrees toward the back group.