CURVE IMAGING DEVICE

• Main Author: OKUDA ISAO
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2015
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

PROBLEM TO BE SOLVED: To achieve size reduction and weight reduction of a first lens group as much as possible, in a curve imaging device comprising the first lens group, and a rear lens group respectively on front and rear parts of curve of a curve element on an optic axis.SOLUTION: The curve imaging device comprises a first lens group and a rear lens group on front and rear parts of curve of a curve element on an optic axis, and a notch surface orthogonal to the optic axis rear curve is formed on part of a peripheral edge of the first lens group which is closer to the rear lens group, and the notch surface of the first lens group is formed of an optic axis inclination plane which comes close to the optic axis front curve from an incidence surface toward an outgoing radiation surface of the first lens group. 【課題】屈曲素子の屈曲前後の光軸上に、第１レンズ群と、後方レンズ群をそれぞれ配置した屈曲撮像装置において、第１レンズ群の極限までの小型軽量化を図る。【解決手段】屈曲素子の屈曲前後の光軸上に、第１レンズ群と、後方レンズ群をそれぞれ配置し、第１レンズ群の後方レンズ群に近い側の周縁一部に、屈曲後光軸と直交する切欠面を形成した屈曲撮像装置において、第１レンズ群の切欠面を、該第１レンズ群の入射面から出射面にかけて、屈曲前光軸に接近する光軸傾斜平面から構成した屈曲撮像装置。【選択図】図９