Imaging lens system and camera module

An imaging lens system comprising:

• a first optical path folding member having one reflective surface and having a cross-sectional shape of a right-angled triangle;
• a second optical path folding member having two or more reflective surfaces and having the cross-sectional shape of a right-angled triangle;
• a lens unit disposed to face the incident surface or exit surface of the first optical path folding member;
• and
• an imaging plane disposed to face a total reflective surface of the second optical path folding member,
• wherein the first optical path folding member, the second optical path folding member and the imaging plane are sequentially arranged along an optical axis of the lens unit, and
• wherein the second optical path folding member comprises:
• a first reflective surface reflecting light exiting the first optical path folding member;
• and
• a second reflective surface reflecting light reflected from the first reflective surface to the first reflective surface.

An imaging lens system comprising:

• an optical path folding member including a first reflective surface, a second reflective surface, and a third reflective surface configured to sequentially reflect light incident from an object side;
• and
• a first lens group disposed on the object side or image side of the first reflective surface,
• wherein a first angle of incidence of the first reflective surface is less than a second angle of incidence of the second reflective surface, and a third angle of incidence of the third reflective surface is less than the first angle of incidence of the first reflective surface.

An imaging lens system comprising:

• a first lens having positive refractive power;
• a second lens having negative refractive power, a convex object-side surface, and a concave image-side surface;
• a third lens having refractive power and a concave image-side surface;
• a first reflective surface, a second reflective surface, and a third reflective surface disposed in this order from an object side along an optical axis;
• and
• an imaging plane disposed along the optical axis and parallel to a second virtual plane including the second reflective surface,
• wherein the first lens, the second lens, the third lens, the second reflective surface, and the third reflective surface are disposed in this order from an object side along the optical axis.