Patent ID: 8248710
Filing Date: 2012-08-21
Classification: G02B

Abstract:
1. A prism type of lens, comprising a first reflection lens, at least a first lens group, a second reflection prism, at least a second lens group, a third reflection prism, and at least a third lens group sequentially arranged from an object side to an image side; wherein light is reflected by the reflection prisms to form a bent light axis, which has a first section between the first reflection prism and the second reflection prism, a second section between the second reflection prism and the third reflection prism, and a third section between the third reflection prism and the image side; wherein the second section is substantially perpendicular to the first section and the third section is substantially perpendicular to the second section; wherein the first lens group is in the first section, the second lens group is in the second section, and the third lens group is in the third section.