Patent ID: 11867966
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The lens system according to claim 1, wherein the plurality of lens elements include a free-curved surface lens satisfying following conditional expression (2),

D×(SVb−SHb)/IHb>−0.01  (2)

where, IHb: a height at which a ray with an angle of view of 15° forms an image on the image surface, in the first direction; SHb: a sag amount at the height IHb of the free-curved surface, in the first direction; SVb: a sag amount at the height IHb of the free-curved surface, in the second direction.