Imaging lens and camera module comprising the same
AssigneeLG Innotek Co., Ltd.
InventorsJi Sung Kim, Dae Sik Jang, Soo Min Jeong
Life of this patent
Estimating the term…
Abstract
An embodiment provides an imaging lens comprising first to third lens groups arranged sequentially from an object side to an image side and having refractive power, wherein the distances of the second lens group and the third lens group from the first lens group are variable such that a tele mode having a narrow angle of view and a wide mode having a wide angle of view can be implemented, the EFL in the tele mode is no more than 2.5 times the EFL in the wide mode, 2<Fnumber<5 and 15 mm<TTL≤40 mm.
Claims20
An imaging lens comprising first to third lens groups arranged sequentially from an object side to an image side and having refractive power, wherein:
- a first lens of the first lens group has an object side configured to be concave towards the object,
- distances to the second lens group and the third lens group from the first lens group are variable such that a tele mode having a narrow angle of view and a wide mode having a wide angle of view can be implemented;
- and
- an EFL in a tele mode is no more than 2.5 times an EFL in a wide mode, 2<FNumber<5, and 15 mm<TTL≤40 mm.
A camera module comprising:
- an imaging lens comprising first to third lens groups arranged sequentially from an object side to an image side and having refractive power, wherein:
- a first lens of the first lens group has an object side configured to be concave towards the object, distances to the second lens group and the third lens group from the first lens group are variable such that a tele mode having a narrow angle of view and a wide mode having a wide angle of view can be implemented;
- and an EFL in a tele mode is no more than 2.5 times an EFL in a wide mode, 2<Fnumber<5, and 15 mm<TTL≤40 mm;
- a filter configured to selectively transmit light having passed through the imaging lens depending on a wavelength of the light;
- and
- a light receiving element configured to receive light having passed through the filter,
- wherein a maximum distance between the first lens group and the light receiving element on an optical axis, as defined as a TTL, is more than 15 mm and is no more than 40 mm.
An imaging lens comprising first to third lens groups arranged sequentially from an object side to an image side and having refractive power, and a stop disposed between the first lens group and the second lens group wherein:
- a first lens of the first lens group has an object side configured to be concave towards the object,
- distances to the second lens group and the third lens group from the first lens group are variable such that a tele mode having a narrow angle of view and a wide mode having a wide angle of view can be implemented;
- and
- an EFL in a tele mode is no more than 2.5 times an EFL in a wide mode, 2<Fnumber<5, and 15 mm<TTL≤40 mm.
Dependencies are inferred from the claim text.