Four-lens module for image capture

An optical module having an object side and an image side;

• the module comprising, from the object side to the image side:
• a first positive meniscus lens having a convergence CI, made of a material having a refractive index NdI and an Abbe number VdI, and comprising first and second optical surfaces, the first optical surface being convex and facing the object side,
• a second negative meniscus lens having a convergence C2 made of a material having a refractive index Nd2 and an Abbe number Vd2, and comprising third and forth optical surfaces,
• a third positive meniscus lens, having a convergence C3, made of a material having a refractive index Nd3 and an Abbe number Vd3, and comprising fifth and sixth optical surfaces, the fifth optical surface being concave and facing the object side, and the sixth optical surface being convex and facing the image side,
• a fourth negative lens having a convergence C4, made of a material having a refractive index Nd4 and an Abbe number Vd4, and comprising seventh and eight optical surfaces, the seventh optical surface facing the object side,
• wherein:
• 1.1<C1/C<1.35
• II C1/C2 II≧2
• 0.5<C1/C3<1.1
• C1/Vd1≦5.2
• II C2/Vd2 II≦7
• II Σ(Ci/Vdi)II≦4
• with i=1 to 4.