Imaging lens module and mobile terminal

1. An imaging lens module, comprising:

an imaging lens assembly comprising at least one lens element, wherein the lens element comprises an effective optical portion disposed on a center of the lens element;

a first optical component being a barrel and comprising:

a side wall, which is closed-shape; and

an end wall connected to one end of the side wall and having a circular opening hole, which is a stop of the imaging lens assembly; and

at least one second optical component having a non-circular opening hole, wherein the second optical component and the imaging lens assembly are disposed in the first optical component, and the non-circular opening hole of the second optical component is corresponded to the circular opening hole of the first optical component;

wherein a line distance between any two points of a peripheral edge of the non-circular opening hole of the second optical component through a center of the non-circular opening hole of the second optical component is m 2AA′ , a minimum line distance between two points of the peripheral edge of the non-circular opening hole of the second optical component through the center of the non-circular opening hole of the second optical component is m 2BB′ , a maximum line distance between two points of the peripheral edge of the non-circular opening hole of the second optical component through the center of the non-circular opening hole of the second optical component is m 2CC′ , an angle between the line distance m 2AA′ of the second optical component and the minimum line distance m 2BB′ of the second optical component is K 2AB , an angle between the maximum line distance m 2CC′ of the second optical component and the minimum line distance m 2BB′ of the second optical component is K 2CB , and the following conditions are satisfied:

m 2BB′ ≦m 2AA′ <m 2CC′ ; and

| K 2AB |>|K 2CB |, wherein | K 2AB | and | K 2CB | are both smaller than or equal to 90 degrees.

2. The imaging lens module of claim 1 , wherein the lens element is made of a plastic material, the effective optical portion is non-circular, a line distance between any two points of a peripheral edge of the effective optical portion of the lens element through the center of the lens element is I AA′ , a minimum line distance between two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I BB′ , a maximum line distance between two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I CC′ , an angle between the line distance I AA′ of the lens element and the minimum line distance I BB′ of the lens element is θ AB , an angle between the maximum line distance I CC′ of the lens element and the minimum line distance I BB′ of the lens element is θ CB , and the following conditions are satisfied:

I BB′ ≦I AA′ <I CC′ ; and

|θ AB |>|θ CB |, wherein |θ AB | and |θ CB | are both smaller than or equal to 90 degrees.

3. The imaging lens module of claim 2 , wherein the maximum line distance between two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I CC′ , a maximum outer diameter of the lens element is Γ CC′ , and the following condition is satisfied:

0.6<I CC′ /Γ CC′ <1.

4. The imaging lens module of claim 3 , wherein the angle between the maximum line distance I CC′ of the lens element and the minimum line distance I BB′ of the lens element is θ CB , and the following condition is satisfied:

50 degrees<|θ CB |<75 degrees.

5. The imaging lens module of claim 3 , wherein the line distance between any two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I AA′ , the maximum line distance between two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I CC′ , and the following condition is satisfied:

0.80<I AA′ /I CC′ <0.98.

6. The imaging lens module of claim 3 , wherein the maximum line distance between two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I CC′ , the maximum outer diameter of the lens element is Γ CC′ , and the following condition is satisfied:

0.8<I CC′ /Γ CC′ <0.98.

7. The imaging lens module of claim 1 , wherein the minimum line distance between two points of the peripheral edge of the non-circular opening hole of the second optical component through the center of the non-circular opening hole of the second optical component is m 2BB′ , the maximum line distance between two points of the peripheral edge of the non-circular opening hole of the second optical component through the center of the non-circular opening hole of the second optical component is m 2CC′ , and the following condition is satisfied:

0.50<m 2BB′ /m 2CC′ <0.95.

8. The imaging lens module of claim 1 , wherein the second optical component further comprises:

a side wall, which is closed-shape; and

two end walls, wherein each of the end walls is connected to each of two ends of the side wall separately and has the non-circular opening hole.

9. The imaging lens module of claim 1 , wherein the second optical component is a light blocking plate with an uniform thickness.

10. The imaging lens module of claim 2 , wherein the lens element is a non-circular lens element, a maximum outer diameter of the lens element is Γ CC′ , a minimum outer diameter of the lens element is Γ BB′ , a lens outer diameter of the lens element is Γ AA′ , which excludes the maximum outer diameter Γ CC′ of the lens element and the minimum outer diameter Γ BB′ of the lens element, an angle between the lens outer diameter Γ AA′ of the lens element and the minimum outer diameter Γ BB′ of the lens element is α AB , an angle between the maximum outer diameter Γ CC′ of the lens element and the minimum outer diameter Γ BB′ of the lens element is α CB , and the following conditions are satisfied:

Γ BB′ ≦Γ AA′ <Γ CC′ ; and

|α AB |>|α CB |, wherein |α AB | and |α CB | are both smaller than or equal to 90 degrees.

11. The imaging lens module of claim 10 , wherein the angle between the maximum outer diameter Γ CC′ of the lens element and the minimum outer diameter Γ BB′ of the lens element is α CB , and the following condition is satisfied:

35 degrees<|α CB |<65 degrees.

12. The imaging lens module of claim 10 , wherein the minimum line distance between two points of the peripheral edge of the effective optical portion of the lens element through the center of the lens element is I BB′ , the minimum outer diameter of the lens element is Γ BB′ , and the following condition is satisfied:

0.65<I BB′ /Γ BB′ <1.0.

13. The imaging lens module of claim 1 , further comprising:

an image surface;

wherein the second optical component is closer to the image surface than the imaging lens assembly.

14. A mobile terminal, having a communication function, comprising:

the imaging lens module of claim 1 .