| 摘要 |
<p>A lens assembly includes a lens set (1) which includes a first lens (11), a second lens (12), a third lens (13) and a fourth lens (14) arranged in sequence along an optical axis (L). The first lens (11) has a positive optical power. The second lens (12) has a positive optical power. The third lens (13) has a negative optical power. The fourth lens (14) has a positive optical power, and has an image-side surface (142), an object-side surface (141), and a peripheral surface (143) interconnecting the two. At least one of the object-side and image-side surfaces (141, 142) has an inflection point located between the optical axis (L) and the peripheral surface (143). The lens assembly satisfies 15<HFOV/f<50, in which, HFOV represents one half of a maximum angle of view of the lens assembly, and f represents a focal length thereof.</p> |
