Camera optical lens

A camera optical lens, comprising from an object side to an image side:

• a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens;
• wherein an on-axis distance from an image-side surface of the third lens to an object-side surface of the fourth lens is d6, a total optical length from an object-side surface of the first lens to an image plane of the camera optical lens along an optic axis of the camera optical lens is TTL, a field of view of the camera optical lens is FOV, a full field of view image height in a diagonal direction of the camera optical lens is IH, a focal length of the camera optical lens is f, a focal length of the third lens is f3, a central curvature radius of an object-side surface of the second lens is R3, and a central curvature radius of an image-side surface of the second lens is R4, and following relational expressions are satisfied:
• 0.06
• ≤
• d
• ⁢
• 6
• /
• TTL
• ≤
• 0.2
• ;
• 90.
• ≤
• (
• FOV
• ×
• f
• )
• /
• H
• ≤
• 140.
• ;
• 1.
• ≤
• f
• ⁢
• 3
• /
• f
• ≤
• 5.
• ;
• and
• 1.
• ≤
• R
• ⁢
• 4
• /
• R
• ⁢
• 3
• ≤
• 15.
• .