Patent ID: 8014083
Filing Date: 2011-09-06
Classification: G02B

Abstract:
1. An imaging lens, comprising a first junction type compound lens, an aperture stop, a second junction type compound lens, and a third junction type compound lens, characterized in that said first junction type compound lens, said aperture stop, said second junction type compound lens, and said third junction type compound lens are arranged in this sequence from an object side to an image side, said first junction type compound lens comprises a first lens, a second lens and a third lens arranged in this sequence from the object side to the image side, said second junction type compound lens comprises a fourth lens, a fifth lens and a sixth lens arranged in this sequence from the object side to the image side, said third junction type compound lens comprises a seventh lens, an eighth lens and a ninth lens arranged in this sequence from the object side to the image side, said first lens, said third lens, said fourth lens, said sixth lens, said seventh lens and said ninth lens are formed of a curable resin material, said second lens, said fifth lens and said eighth lens are formed of a high softening temperature optical glass material, said first lens and said second lens are bonded with adhesive, said second lens and said third lens are bonded with adhesive, said fourth lens and said fifth lens are bonded with adhesive, said fifth lens and said sixth lens are bonded with adhesive, said seventh lens and said eighth lens are bonded with adhesive, and said eighth lens and said ninth lens are bonded with adhesive, and the following Conditions (1) to (12) are satisfied: where