Image capture lens modules and image capture systems
View Patent ↗Image capture lens modules are presented. An image capture lens module includes a first compound lens with a first element and a second element arranged in sequence from an object side to an image side. The second element is a plano-convex lens with a convex surface facing the image side on a paraxial line. A second compound lens includes a third element, a fourth element, and a fifth element arranged in sequence from an object side to an image side. The third element is a plano-convex lens with a convex surface facing the object side on a paraxial line, and the fifth element is a plano-concave lens with a concave surface facing the image side on a paraxial line. A third compound lens includes a sixth element and a seventh element arranged in sequence from an object side to an image side, wherein the sixth element is a plano-convex lens with a convex surface facing the object side on a paraxial line.
1. An image capture lens module, comprising:
a first compound lens with a first element and a second element arranged in sequence from an object side to an image side, wherein the second element is a plano-convex lens with a convex surface facing the image side on a paraxial line;
a second compound lens with a third element, a fourth element, and a fifth element arranged in sequence from an object side to an image side, wherein the third element is a plano-convex lens with a convex surface facing the object side on a paraxial line, and the fifth element is a plano-concave lens with a concave surface facing the image side on a paraxial line; and
a third compound lens with a sixth element and a seventh element arranged in sequence from an object side to an image side, wherein the sixth element is a plano-convex lens with a convex surface facing the object side on a paraxial line.
2. The image capture lens module according to claim 1 , wherein the first element, the fourth element, and the seventh element comprise high refraction index substrates.
3. The image capture lens module according to claim 1 , wherein the second, the third, the fifth, and the sixth elements comprise reflowable and VU curable polymer compounds.
4. The image capture lens module according to claim 1 , wherein the following relations are further satisfied:
EFL g3 >EFL g2
where:
EFL g2 is effective focal length of the second compound lens; and
EFL g3 is effective focal length of the third compound lens.
5. The image capture lens module according to claim 1 , wherein the following relations are further satisfied:
EFL g3 >|EFL g1 |
where:
EFL g1 is effective focal length of the first compound lens; and
EFL g3 is effective focal length of the third compound lens.
6. The image capture lens module according to claim 1 , wherein the following relations are further satisfied:
80 >T air56 /T air23 >5,
where:
T air23 is the distance between the second element and the third element, and
T air56 is the distance between the fifth element and the sixth element.
7. The image capture lens module according to claim 1 , wherein the first, fourth, and seventh elements comprise an optical-parallel plate.
8. The image capture lens module according to claim 1 , further comprising a cover glass for an image detector hybrid with the third compound lens, wherein the first compound lens, the second compound lens, the third compound lens, and the cover glass are arranged in sequence from an object side to an image side.
9. An image capture system, comprising:
a first compound lens with a first element and a second element arranged in sequence from an object side to an image side, wherein the second element is a plano-convex lens with a convex surface facing the image side on a paraxial line;
a second compound lens with a third element, a fourth element, and a fifth element arranged in sequence from an object side to an image side, wherein the third element is a plano-convex lens with a convex surface facing the object side on a paraxial line, and the fifth element is a plano-concave lens with a concave surface facing the image side on a paraxial line; and
a third compound lens with a sixth element and a seventh element arranged in sequence from an object side to an image side, wherein the sixth element is a plano-convex lens with a convex surface facing the object side on a paraxial line; and
an image detector with a cover glass hybrid with the seventh element of the third compound lens, wherein the first compound lens, the second compound lens, the third compound lens, and the cover glass are arranged in sequence from an object side to an image side.
10. The image capture system according to claim 9 , wherein the first element, the fourth element, and the seventh element comprise high refraction index substrates.
11. The image capture system according to claim 9 , wherein the second, the third, the fifth, and the sixth elements comprise reflowable and VU curable polymer compounds.
12. The image capture system according to claim 9 , wherein the following relations are further satisfied:
EFL g3 >EFL g2
where:
EFL g2 is effective focal length of the second compound lens; and
EFL g3 is effective focal length of the third compound lens.
13. The image capture system according to claim 9 , wherein the following relations are further satisfied:
EFL g3 >|EFL g1 |
where:
EFL g1 is effective focal length of the first compound lens; and
EFL g3 is effective focal length of the third compound lens.
14. The image capture system according to claim 9 , wherein the following relations are further satisfied:
80 >T air56 /T air23 >5,
where:
T air23 is the distance between the second element and the third element, and
T air56 is the distance between the fifth element and the sixth element.
15. The image capture system according to claim 9 , wherein the first, fourth, and seventh elements comprise an optical-parallel plate.
16. The image capture system according to claim 9 , further comprising a cover glass for an image detector hybrid with the third compound lens, wherein the first compound lens, the second compound lens, the third compound lens, and the cover glass are arranged in sequence from an object side to an image side.