Optical image lens system

An optical image lens system comprising, in order from an object side to an image side:

• a first lens element with positive refractive power having a convex object-side surface;
• a second lens element having positive refractive power;
• a third lens element with positive refractive power having a convex image-side surface;
• a fourth lens element having negative refractive power;
• a fifth lens element with positive refractive power made of plastic, and having a convex object-side surface and a concave image-side surface, wherein the object-side surface and the image-side surface of the fifth lens element are aspheric;
• and
• a sixth lens element with negative refractive power made of plastic, and having a concave image-side surface, wherein the image-side surface of the sixth lens element changes from concave at a paraxial region to convex at a peripheral region, and an object-side surface and the image-side surface of the sixth lens element are aspheric;
• wherein the optical image lens system has a total of six lens elements with refractive power, a maximal field of view of the optical image lens system is FOV, and the following relationship is satisfied:
• 70 degrees<FOV<100 degrees.

An optical image lens system comprising, in order from an object side to an image side:

• a first lens element with positive refractive power having a convex object-side surface;
• a second lens element with positive refractive power having a convex object-side surface;
• a third lens element having positive refractive power;
• a fourth lens element having negative refractive power;
• a fifth lens element with positive refractive power made of plastic, and having a convex object-side surface and a concave image-side surface, wherein the object-side surface and the image-side surface of the fifth lens element are aspheric;
• and
• a sixth lens element with negative refractive power made of plastic, and having a concave image-side surface, wherein the image-side surface of the sixth lens element changes from concave at a paraxial region to convex at a peripheral region, and an object-side surface and the image-side surface of the sixth lens element are aspheric;
• wherein the optical image lens system has a total of six lens elements with refractive power, a maximal field of view of the optical image lens system is FOV, and the following relationship is satisfied:
• 70 degrees<FOV<100 degrees.

An optical image lens system comprising, in order from an object side to an image side:

• a first lens element with positive refractive power having a convex object-side surface;
• a second lens element having positive refractive power;
• a third lens element having positive refractive power;
• a fourth lens element having negative refractive power;
• a fifth lens element with positive refractive power made of plastic, and having a convex object-side surface and a concave image-side surface, wherein the object-side surface and the image-side surface of the fifth lens element are aspheric;
• and
• a sixth lens element with negative refractive power made of plastic, and having a concave image-side surface, wherein the image-side surface of the sixth lens element changes from concave at a paraxial region to convex at a peripheral region, and an object-side surface and the image-side surface of the sixth lens element are aspheric;
• wherein the optical image lens system has a total of six lens elements with refractive power;
• each of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element is a single and non-cemented lens element;
• a maximal field of view of the optical image lens system is FOV, and the following relationship is satisfied:
• 70 degrees<FOV<100 degrees.