CN-116643385-B - Image capturing lens system, image capturing device and electronic device

CN116643385BCN 116643385 BCN116643385 BCN 116643385BCN-116643385-B

Abstract

The invention discloses an image capturing lens system, which sequentially comprises a front lens group and a rear lens group from an object side to an image side of an optical path. The front lens group includes four lenses, and the rear lens group includes four lenses. The front lens group has negative refractive power from the image side to the second lens. The front lens group has a convex image-side surface at a paraxial region from an image-side surface of the first lens element. The second lens group has negative refractive power from the object side. The object side surface of the first lens element of the rear lens group is concave at a paraxial region. At least one lens in the rear lens group has at least one surface which is aspheric. When the specific condition is satisfied, the image capturing lens system can satisfy the requirements of long focal length, miniaturization and high imaging quality. The invention also discloses an image capturing device with the image capturing lens system set and an electronic device with the image capturing device.

Inventors

YE GUANTING
GUO ZIJIE

Assignees

大立光电股份有限公司

Dates

Publication Date: 20260505
Application Date: 20220324
Priority Date: 20220216

Claims (10)

1. The image capturing lens system comprises a first front lens group, a second front lens group, a rear lens group and an optical path switching structure, wherein the optical path switching structure is used for enabling the image capturing lens system to be switched between a first optical path state and a second optical path state; when the image capturing lens system is in the first light path state, the image capturing lens system sequentially comprises the first front lens group and the rear lens group from an object side to an image side on a first light path; when the image capturing lens system is in the second light path state, the image capturing lens system sequentially comprises the second front lens group and the rear lens group from an object side to an image side on a second light path; The first front lens group comprises at least three lenses, the second front lens group comprises at least one lens, the rear lens group comprises at least two lenses, the at least three lenses of the first front lens group, the at least one lens of the second front lens group and the at least two lenses of the rear lens group respectively have an object side surface facing in an object side direction and an image side surface facing in an image side direction, and at least one surface of the object side surface and the image side surface of at least one lens of the rear lens group is an aspheric surface; The half of the maximum viewing angle in the image capturing lens system set is HFOV, the focal length of the image capturing lens system set in the first optical path state is FS1, the focal length of the image capturing lens system set in the second optical path state is FS2, the minimum abbe number in all lenses of the rear lens group is minVGr, which satisfies the following conditions: 3.0 degrees < HFOV < 18.0 degrees; 1.2 < FS1/FS2 > 8.0 < minVGr < 26.5。
2. The image capturing lens system of claim 1, wherein the focal length of the image capturing lens system in the first optical path state is FS1, the focal length of the image capturing lens system in the second optical path state is FS2, and the minimum abbe number of all lenses of the rear lens group is minVGr, which satisfies the following conditions: 1.4 < FS1/FS2 < 5.5, and 10.0 < minVGr < 23.0。
3. The image capturing lens system of claim 1, wherein the first front lens group has a focal length of FGf a and the second front lens group has a focal length of FGf a, which satisfies the following conditions: 1.2 < FGf1/FGf2 < 2.0。
4. the image capturing lens system of claim 1, wherein the light path switching structure comprises at least one reflective element, and the at least one reflective element is movable or rotatable relative to the first front lens group, the second front lens group, or the rear lens group.
5. The image capturing lens system of claim 1, further comprising a first reflective element, wherein the first reflective element is disposed in the first front lens group; The image capturing lens system further includes a second reflective element, and when the image capturing lens system is in the second optical path state, the second reflective element is located between the second front lens group and the rear lens group on the second optical path.
6. The image capturing lens system of claim 1, wherein the first front lens group comprises four lenses, the second front lens group comprises one lens, and the rear lens group comprises four lenses.
7. The set of image capturing lens systems of claim 1, wherein the rear lens group comprises a movable lens subgroup, the movable lens subgroup comprising at least one lens, and the movable lens subgroup moving along the optical axis when the set of image capturing lens systems switches between the first optical path state and the second optical path state.
8. The set of image capturing lens systems of claim 7, wherein the movable lens subgroup has negative refractive power; wherein the focal length of the movable lens subgroup is FGm, and the thickness of the movable lens subgroup on the optical axis is TGm, which satisfies the following conditions: -50.0 < FGm/TGm < -10.0。
9. an image capturing device, comprising: the image capture lens system set according to claim 1, and An electronic photosensitive element is arranged on an imaging surface of the image capturing lens system group.
10. An electronic device, comprising: the image capturing apparatus according to claim 9.

Description

Image capturing lens system, image capturing device and electronic device Technical Field The present invention relates to an image capturing lens system, an image capturing device and an electronic device, and more particularly to an image capturing lens system and an image capturing device suitable for an electronic device. Background With the advancement of semiconductor technology, the performance of the electronic photosensitive device is improved, and the pixels can be made to have smaller sizes, so that an optical lens with high imaging quality is considered to be an indispensable feature. Along with the technological change, the electronic device equipped with the optical lens has a wider application range, and the requirements for the optical lens are more diversified. Because the existing optical lens is not easy to balance among requirements of imaging quality, sensitivity, aperture size, volume or visual angle, the invention provides an optical lens which meets the requirements. Disclosure of Invention The invention provides an image capturing lens system set, an image capturing device and an electronic device. The image capturing lens system includes a front lens assembly and a rear lens assembly sequentially from an object side to an image side along an optical path. The front lens group comprises at least one lens, the rear lens group comprises at least two lenses, and the lenses are sequentially arranged from an object side to an image side along the light path. When meeting specific conditions, the image capturing lens system set provided by the invention can meet the requirements of long focal length, miniaturization and high imaging quality. The invention provides an image capturing lens system, which sequentially comprises a front lens group and a rear lens group from an object side to an image side along an optical path. The front lens group includes four lenses, and the rear lens group includes four lenses. The four lenses of the front lens group and the four lenses of the rear lens group each have an object side surface facing in the object side direction and an image side surface facing in the image side direction. The front lens group has negative refractive power from the image side to the second lens. The front lens group has a convex image-side surface at a paraxial region from an image-side surface of the first lens element. The second lens group has negative refractive power from the object side. The object side surface of the first lens element of the rear lens group is concave at a paraxial region. At least one surface of the object side surface and the image side surface of at least one lens in the rear lens group is an aspheric surface. The abbe number of the first lens element from the image side is Vrr1, the abbe number of the second lens element from the image side is Vrr2, the distance between the image side surface of the first lens element from the image side and the object side surface of the first lens element from the object side is TGfGr, and the thickness of the first lens element from the image side is Tfr1, which satisfies the following conditions: 1.2< Vrr1/Vrr2<7.5, and 2.4<TGfGr/Tfr1。 The invention further provides an image capturing lens system, which sequentially comprises a front lens group and a rear lens group from an object side to an image side along an optical path. The front lens group includes one lens, and the rear lens group includes four lenses. Each of the four lenses of the front lens group and the rear lens group has an object-side surface facing in the object-side direction and an image-side surface facing in the image-side direction. The front lens group has a convex object-side surface at a paraxial region from an object-side surface of the first lens element. The second lens group has negative refractive power from the object side. The object side surface of the second lens element is concave at a paraxial region. The object side surface of the second lens element is convex at a paraxial region of the rear lens group. The rear lens group has negative refractive power from the image side to the first lens. At least one surface of the object side surface and the image side surface of at least one lens in the rear lens group is an aspheric surface. The abbe number of the first lens element from the image side is Vrr1, the abbe number of the second lens element from the image side is Vrr2, the distance between the image side surface of the first lens element from the image side and the object side surface of the first lens element from the object side is TGfGr, and the thickness of the first lens element from the image side is Tfr1, which satisfies the following conditions: 1.2< Vrr1/Vrr2<7.5, and 1.6<TGfGr/Tfr1。 The invention further provides an image capturing lens system, which comprises a first front lens group, a second front lens group, a rear lens group and an optical path switching structure. The optical path switching structure is us