Wide-angle lens assembly

A wide-angle lens assembly comprising:

• a first lens which is with negative refractive power;
• a second lens which is with positive refractive power;
• a third lens which is with positive refractive power;
• a fourth lens which is with refractive power;
• a fifth lens which is with refractive power;
• a sixth lens which is with positive refractive power;
• a seventh lens which is with positive refractive power and comprises a convex surface facing an image side;
• and
• an eighth lens which is a biconcave surface with negative refractive power and comprises a concave surface facing an object side and another concave surface facing the image side;
• wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens are arranged in order from the object side to the image side along an optical axis;
• wherein the wide-angle lens assembly satisfies at least one of following conditions:
• 0
• .
• 8
• ≤
• f
• /
• D
• ⁢
• 22
• ⁢
• ≤
• 3
• ;
• 0.025
• degrees
• -
• 1
• ≤
• 1
• /
• α
• ≤
• 0.3
• degrees
• -
• 1
• ;
• 0.03
• degrees
• -
• 1
• ≤
• 1
• /
• β
• ≤
• 0
• .35
• degrees
• -
• 1
• ;
• 0.5
• ≤
• α
• /
• β
• ⁢
• ≤
• 3
• ⁢
• 0
• ;
• wherein fis an effective focal length of the wide-angle lens assembly, D22 is an effective optical diameter of an image side surface of the second lens, a is a maximum tangent angle of a first cemented surface, and B is a maximum tangent angle of a second cemented surface.

A wide-angle lens assembly comprising:

• a first lens which is a biconcave lens with negative refractive power and comprises a concave surface facing an object side and another concave surface facing an image side;
• a second lens which is with positive refractive power;
• a third lens which is a biconvex lens with positive refractive power and comprises a convex surface facing the object side and another convex surface facing the image side;
• a fourth lens which is with refractive power;
• a fifth lens which is with refractive power;
• a sixth lens which is with positive refractive power and comprises a convex surface facing the image side;
• a seventh lens which is a biconvex lens with positive refractive power and comprises a convex surface facing the object side and another convex surface facing the image side;
• and
• an eighth lens which is a meniscus surface with refractive power and comprises a concave surface facing the object side and a convex surface facing the image side;
• wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens are arranged in order from the object side to the image side along an optical axis;
• wherein the wide-angle lens assembly satisfies at least one of following conditions:
• 0
• .
• 8
• ≤
• f
• /
• D
• ⁢
• 22
• ⁢
• ≤
• 3
• ;
• 0.025
• degrees
• -
• 1
• ≤
• 1
• /
• α
• ≤
• 0.3
• degrees
• -
• 1
• ;
• 0.03
• degrees
• -
• 1
• ≤
• 1
• /
• β
• ≤
• 0
• .35
• degrees
• -
• 1
• ;
• 0.5
• ≤
• α
• /
• β
• ⁢
• ≤
• 3
• ⁢
• 0
• ;
• wherein fis an effective focal length of the wide-angle lens assembly, D22 is an effective optical diameter of an image side surface of the second lens, a is a maximum tangent angle of a first cemented surface, and B is a maximum tangent angle of a second cemented surface.