IMAGING DEVICE AND IMAGING SYSTEM

• Main Author: BABA TOMOHIKO
• Format: Patent
• Language: English; Japanese
• Published: 11.06.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To improve performance and achieve a wide angle and a low profile in lenses basically formed in a one-group configuration.SOLUTION: An imaging lens is provided with first to third lenses. These first to third lenses are arranged in order from the object side to the image surface side without air therebetween. The respective surfaces of the first to third lenses have aspherical shapes. An imaging element is disposed on the image surface side of the imaging lens. A cover glass is stuck to the imaging surface of the imaging element without any air gap therebetween. Another lens may be disposed between the imaging lens and the imaging element.SELECTED DRAWING: Figure 1 【課題】１群構成を基本とするレンズにおいて、性能を向上させ、広角および低背化を図る。【解決手段】撮像レンズは、第１乃至第３レンズを備える。これら第１乃至第３レンズは、物体側から像面側に向かって空気を挟まず順番に配置される。第１乃至第３レンズのそれぞれの面は、非球面形状を有する。撮像素子は、撮像レンズの像面側に配置される。撮像素子の撮像面には、カバーガラスが空気間隔なしに貼り付けられている。撮像レンズと撮像素子との間には、他のレンズを配置してもよい。【選択図】図１