To provide a night vision camera which is made of a small number of optical components, has a wide visual field in the horizontal direction and a narrow visual field in a vertical direction.SOLUTION: A night vision camera for converting heat energy emitted from an object into an electric signal and displaying an image comprises: at least one anamorphic lens having the negative power in the horizontal direction; and at least a free-form surface mirror which is arranged outside the axis. The night vision camera includes an imaging region in which the visual field angle of the horizontal direction center part is equal to or greater than 120° and the visual field angle of the vertical direction center part is equal to or less than 30°. The entire imaging region is collectively and simultaneously imaged.SELECTED DRAWING: Figure 1
【課題】少ない光学部品で水平方向に広く垂直方向に狭い視野を持つナイトビジョンカメラ。【解決手段】物体から放出される熱エネルギーを電気的な信号に変換し画像表示するナイトビジョンカメラであって、 水平方向に負のパワーを有する少なくとも1枚のアナモルフィックレンズと、少なくとも一面の軸外配置された自由曲面ミラーを持ち、水平方向中央部の視野角が120°以上であり、かつ垂直方向中央部の視野角が30°以下である撮像領域を持ち、かつ上記撮像領域全体が一括同時撮像されること特徴とする。【選択図】図1
NIGHT VISION CAMERA
ナイトビジョンカメラ
25.04.2023
Patent
Elektronische Ressource
Japanisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien |
NTRS | 1996
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