| 主权项 |
1. An optical system, comprising:
a plurality of wide angle lenses to form subject images, each wide angle lens having a peripheral area with a decreased image forming magnification per unit angle of view and an inside area ranging from an optical axis to an inside edge of the peripheral area, the inside area including:
a first area ranging from the optical axis toward the peripheral area, the first area having a constant image forming magnification per unit angle of view; anda second area ranging from an outside edge of the first area to the inside edge of the peripheral area, the second area having an image forming magnification per unit angle of view that continuously varies in a direction from the outside edge of the first area toward the peripheral area, wherein an image portion formed by the peripheral area of a wide angle lens of the plurality of wide angle lenses overlaps with another image portion formed by the peripheral area of another wide angle lens of the plurality of wide angle lenses, and wherein an image portion formed by the inside area of the wide angle lens does not overlap with another image portion formed by the inside area of said another wide angle lens. |
