The present invention discloses a wide angle lens (10), which includes from an object side to an image side in sequence a first lens group (12) and a second lens group (14). The first lens group (12) includes from an object side to an image side in sequence: a first lens L2 having a negative refractive power, a second lens L3 having a negative refractive power and a third lens L4 having a positive refractive power. The second lens group (14) includes from an object side to an image side in sequence: a fourth lens L5 having a positive refractive power, a fifth lens L6 having a positive refractive power, a sixth lens L7 having a negative refractive power and a seventh lens L8 having a positive refractive power. The wide angle lens (10) satisfies the following relationship: H2/G2R2 < 1.8; where, H2 is a diameter of an image side surface of the first lens L2; G2R2 is a curvature radius of the image side surface of the first lens L2. In addition, the prevent invention also discloses an imaging device (100) and an unmanned aerial vehicle (1000).
WIDE-ANGLE LENS, IMAGING DEVICE, AND UNMANNED AERIAL VEHICLE
WEITWINKELOBJEKTIV, BILDGEBUNGSVORRICHTUNG UND UNBEMANNTES LUFTFAHRZEUG
OBJECTIF GRAND ANGLE, DISPOSITIF D'IMAGERIE ET AÉRONEF SANS PILOTE
2021-11-17
Patent
Elektronische Ressource
Englisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien |
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