Slim lens assembly
AssigneesSintai Optical (Shenzhen) Co., Ltd., Asia Optical Co., Inc.
InventorsChien-Hung Chen, Hsi-Ling Chang
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Abstract
A slim lens assembly in accordance with the invention in order from an object side to an image side along an optical axis, comprises a first lens, a second lens, a third lens and a fourth lens. The first lens is with positive refractive power, which includes a convex surface facing an image side. The second lens is with positive refractive power, which includes a concave surface facing the image side. The third lens is with positive refractive power, which includes a concave surface facing the object side and a convex surface facing the image side. The fourth lens is with positive refractive power.
Claims20
A slim lens assembly comprising, in order from an object side to an image side along an optical axis:
- a first lens with positive refractive power, which includes a convex surface facing the image side;
- a second lens with positive refractive power, which includes a concave surface facing the image side;
- a third lens with positive refractive power, which includes a concave surface facing the object side and a convex surface facing the image side;
- and
- a fourth lens with positive refractive power, which includes a concave surface facing the image side.
A slim lens assembly comprising, in order from an object side to an image side along an optical axis:
- a first lens with positive refractive power, which includes a convex surface facing the image side;
- a second lens with positive refractive power, which includes a convex surface facing the object side and a concave surface facing the image side;
- a third lens with positive refractive power, which includes a concave surface facing the object side and a convex surface facing the image side;
- a stop;
- and
- a fourth lens with positive refractive power.
A slim lens assembly comprising, in order from an object side to an image side along an optical axis:
- a first lens with positive refractive power, which includes a convex surface facing the image side;
- a second lens with positive refractive power, which includes a concave surface facing the image side;
- a third lens with positive refractive power, which includes a concave surface facing the object side and a convex surface facing the image side;
- a stop;
- and
- a fourth lens with positive refractive power.
Dependencies are inferred from the claim text.