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US 12,656,584 B2Granted
Imaging lens assembly, camera module and imaging device
AssigneeGuangdong Oppo Mobile Telecommunication Corp., Ltd.
InventorDaigo Katsuragi
Life of this patent
Estimating the term…
Abstract
An imaging lens assembly includes a first lens group for shooting at a short focal length, a second lens group for shooting at a long focal length, a third lens group for shooting at the short focal length and the long focal length, a first minor positioned between the first lens group and the third lens group; and a second mirror positioned between the second lens group and the third lens group. The first lens group and second lens group change its position in an optical axis direction between a shooting state and a lens storage state. The first minor or second mirror forms an optical path optically connecting a corresponding lens group and the third lens group. The first minor or second minor secure a storage space for the corresponding lens group.
Claims13
An imaging lens assembly, comprising:
- a first lens group;
- a second lens group;
- a third lens group;
- and
- a mirror assembly, configured to form an optical path optically connecting the first lens group and the third lens group, or form an optical path optically connecting the second lens group and the third lens group;
- wherein a focal length of an optical system comprising the first lens group and the third lens group is less than a focal length of an optical system comprising the second lens group and the third lens group;
- wherein the imaging lens assembly is configured so that at least one of the following is satisfied:
- 3<(ΣWd+ΣTd)/(Yh_w+Yh_t)<20;
- ΣWd/fw<2.0;
- ΣTd/ft<2.0;
- WLG1/fw<2.0;
- WLG1/LG2<0;
- TLG1/LG2<0;
- or
- ΣTLd1/ΣWLd1<2.0;
- where ΣWd is a distance on a first optical axis of the imaging lens assembly from a vertex of an object side surface of a most object side disposed lens of the first lens group to an imaging surface, the first optical axis comprising an optical axis of the first lens group and an optical axis of the third lens group that are continuous with each other at an intersection with a first mirror of the mirror assembly, ΣTd is a distance on a second optical axis of the imaging lens assembly from a vertex of an object side surface of a most object side disposed lens of the second lens group to an imaging surface, the second optical axis comprising an optical axis of the second lens group and the optical axis of the third lens group that are continuous with each other at an intersection with a second mirror of the mirror assembly Yh_w is an image height of the short focal length side, Yh tis an image height of the long focal length side, fw is a focal length of the imaging lens assembly of the short focal length side, ft is a focal length of the imaging lens assembly of the long focal length side, WLG1 is a focal length of the first lens group, LG2 is a focal length of the third lens group, TLG1 is a focal length of the second lens group, ΣTLd1 is a distance on an optical axis of the second lens group from a vertex of an object side surface of a most object side disposed lens of the second lens group to the second mirror, and ΣWLd1 is a distance on an optical axis of the first lens group from a vertex of an object side surface of a most object side disposed lens of the first lens group to the first mirror;
- and wherein
- the first mirror is positioned between the first lens group and the third lens group;
- and
- the second mirror is positioned between the second lens group and the third lens group.
17 more elements
A camera module, comprising:
- an imaging lens assembly, having a first shooting state, a second shooting state, and a lens storage state, the second shooting state having a focus length longer than that of the first shooting state, and the imaging lens assembly comprising:
- a first lens group;
- a second lens group;
- a third lens group;
- and
- a mirror assembly, configured to form an optical path optically connecting the first lens group and the third lens group or form an optical path optically connecting the second lens group and the third lens group;
- wherein a focal length of an optical system comprising the first lens group and the third lens group is less than a focal length of an optical system comprising the second lens group and the third lens group;
- wherein the imaging lens assembly is configured so that at least one of the following is satisfied:
- 3<(ΣWd+ΣTd)/(Yh_w+Yh_t)<20;
- ΣWd/fw<2.0;
- ΣTd/f<2.0;
- WLG1/fw<2.0.
- WLG1/LG2<0;
- TLG1/LG2<0;
- or
- ΣTLd1/ΣWLd1<2.0;
- where ΣWd is a distance on a first optical axis of the imaging lens assembly from a vertex of an object side surface of a most object side disposed lens of the first lens group to an imaging surface, the first optical axis comprising an optical axis of the first lens group and an optical axis of the third lens group that are continuous with each other at an intersection with a first mirror of the mirror assembly, ΣTd is a distance on a second optical axis of the imaging lens assembly from a vertex of an object side surface of a most object side disposed lens of the second lens group to an imaging surface, the second optical axis comprising an optical axis of the second lens group and the optical axis of the third lens group that are continuous with each other at an intersection with a second mirror of the mirror assembly, Yh_w is an image height of the short focal length side, Yh_t is an image height of the long focal length side, fw is a focal length of the imaging lens assembly of the short focal length side, ft is a focal length of the imaging lens assembly of the long focal length side, WLG1 is a focal length of the first lens group, LG2 is a focal length of the third lens group, TLG1 is a focal length of the second lens group, ΣTLd1 is a distance on an optical axis of the second lens group from a vertex of an object side surface of a most object side disposed lens of the second lens group to the second mirror, and ΣWLd1 is a distance on an optical axis of the first lens group from a vertex of an object side surface of a most object side disposed lens of the first lens group to the first mirror;
- and wherein
- the first mirror is positioned between the first lens group and the third lens group;
- and
- the second mirror is positioned between the second lens group and the third lens group;
- and
- an image sensor comprising an imaging surface.
20 more elements
An imaging device, comprising:
- a camera module, comprising:
- an imaging lens assembly, comprising:
- a first lens group;
- a second lens group;
- a third lens group;
- and
- a mirror assembly, configured to form an optical path optically connecting the first lens group and the third lens group, or form an optical path optically connecting the second lens group and the third lens group;
- wherein a focal length of an optical system comprising the first lens group and the third lens group is less than a focal length of an optical system comprising the second lens group and the third lens group;
- wherein the imaging lens assembly is configured so that at least one of the following is satisfied:
- 3<(>Wd+ΣTd)/(Yh_w+Yh_t)<20;
- ΣWd/fw<2.0;
- ΣTd/ft<2.0;
- WLG1/fw<2.0;
- WLG1/LG2<0;
- TLG1/LG2<0;
- or
- ΣTLd1/ΣWLd1<2.0;
- where ΣWd is a distance on a first optical axis of the imaging lens assembly from a vertex of an object side surface of a most object side disposed lens of the first lens group to an imaging surface, the first optical axis comprising an optical axis of the first lens group and an optical axis of the third lens group that are continuous with each other at an intersection with a first mirror of the mirror assembly, ΣTd is a distance on a second optical axis of the imaging lens assembly from a vertex of an object side surface of a most object side disposed lens of the second lens group to an imaging surface, the second optical axis comprising an optical axis of the second lens group and the optical axis of the third lens group that are continuous with each other at an intersection with a second mirror of the mirror assembly, Yh_w is an image height of the short focal length side, Yh_t is an image height of the long focal length side, fw is a focal length of the imaging lens assembly of the short focal length side, ft is a focal length of the imaging lens assembly of the long focal length side, WLG1 is a focal length of the first lens group, LG2 is a focal length of the third lens group, TLG1 is a focal length of the second lens group, ΣTLd1 is a distance on an optical axis of the second lens group from a vertex of an object side surface of a most object side disposed lens of the second lens group to the second mirror, and ΣWLd1 is a distance on an optical axis of the first lens group from a vertex of an object side surface of a most object side disposed lens of the first lens group to the first mirror;
- and wherein
- the first mirror is positioned between the first lens group and the third lens group;
- and
- the second mirror is positioned between the second lens group and the third lens group;
- and
- an image sensor comprising an imaging surface;
- and
- a housing for storing the imaging lens assembly.
23 more elements
Dependencies are inferred from the claim text.