| 摘要 |
PURPOSE: A micro wide-angle lens is provided to enhance the performance of a wide-angle lens and the performance of aberration, and reduce a size of a camera by obtaining a view angle of 77 or more degrees. CONSTITUTION: A micro wide-angle lens includes a first lens(1), a second lens(2), a third lens(3), and a fourth lens(4). The first lens(1), the second lens(2), the third lens(3), and the fourth lens(4) are succeedingly arranged from a position of a target. The first lens(1) is formed with a meniscus lens having a positive refractive index. The second lens(2) has a negative reflective index. The third lens(3) has the positive refractive index. The fourth lens(4) is formed with the meniscus lens having the positive refractive index.
|
