Camera unit and macro lens thereof
View Patent ↗A camera unit is provided, including a camera lens and a macro lens coupled with the camera lens module along an optical axis. The macro lens comprises a plane substrate and a plano-convex lens structure formed on the plane substrate by wafer level processing, wherein the effective focal length of the macro lens is between 80-150 mm.
1. A macro lens, comprising:
a plane substrate; and
a plano-convex lens structure formed on the plane substrate by wafer level processing, wherein the effective focal length of the macro lens is between 80-150 mm.
2. The macro lens as claimed in claim 1 , wherein the plano-convex lens structure has a clear aperture CA and a differential value T between a center thickness and a edge thickness of the plano-convex lens, and wherein 0.01<T/CA<0.05.
3. The macro lens as claimed in claim 2 , wherein the differential value T is less than 35 um.
4. The macro lens as claimed in claim 1 , wherein the plano-convex lens structure has a sphere convex surface.
5. The macro lens as claimed in claim 1 , wherein the plano-convex lens structure has an aspheric convex surface.
6. The macro lens as claimed in claim 1 , wherein the plano-convex lens structure comprises UV curable material.
7. The macro lens as claimed in claim 1 , wherein the plane substrate comprises glass.
8. A camera unit, comprising:
a camera lens; and
a macro lens coupled with the camera lens module along an optical axis, comprising a plane substrate and a plano-convex lens structure formed on the plane substrate by wafer level processing, wherein the effective focal length of the macro lens is between 80-150 mm.
9. The camera unit as claimed in claim 8 , wherein the plano-convex lens structure has a clear aperture CA and a differential value T between a center thickness and a edge thickness thereof, and wherein 0.01<T/CA<0.05.
10. The camera unit as claimed in claim 9 , wherein the differential value T is less than 35 um.
11. The camera unit as claimed in claim 8 , wherein the plano-convex lens structure has a sphere convex surface facing the camera lens.
12. The camera unit as claimed in claim 8 , wherein the plano-convex lens structure has an aspheric convex surface facing the camera lens.
13. The camera unit as claimed in claim 8 , wherein the plano-convex lens structure comprises UV curable material.
14. The camera unit as claimed in claim 8 , wherein the plane substrate comprises glass.
15. The camera unit as claimed in claim 8 , wherein the macro lens and the camera lens has a distance between 200-1000 um.
16. The camera unit as claimed in claim 8 , wherein the macro lens is movable with respect to the camera lens along a direction substantially perpendicular to the optical axis.
17. A camera unit, comprising:
a camera lens; and
a macro lens coupled with the camera lens module along an optical axis, comprising a plane substrate and a plano-convex lens structure formed on the plane substrate by wafer level processing, wherein the macro lens and the camera lens has a distance between 200-1000 um.