TWI679447B

TWI679447B - Lens assembly

Info

Publication number: TWI679447B
Application number: TW108103132A
Authority: TW
Inventors: 陳柏瑜; Po Yu Chen
Original assignee: 大陸商信泰光學（深圳）有限公司; Sintai Optical (Shenzhen) Co., Ltd.; 亞洲光學股份有限公司; Asia Optical Co., Inc.
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2019-12-11
Also published as: TW202028800A

Abstract

一種成像鏡頭包括一第一透鏡、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡、一第六透鏡及一第七透鏡。第一透鏡具有負屈光力且包括一凸面朝向一物側。第二透鏡具有負屈光力。第三透鏡具有正屈光力。第四透鏡具有正屈光力。第五透鏡具有正屈光力。第六透鏡具有負屈光力。第七透鏡具有正屈光力且包括一凸面朝向物側。第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡、第六透鏡及第七透鏡沿著一光軸從物側至像側依序排列。成像鏡頭滿足以下條件：0.1<|f₂/f|<2.2；其中，f₂為第二透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 An imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has negative refractive power and includes a convex surface facing an object side. The second lens has negative refractive power. The third lens has a positive refractive power. The fourth lens has positive refractive power. The fifth lens has a positive refractive power. The sixth lens has negative refractive power. The seventh lens has positive refractive power and includes a convex surface facing the object side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are sequentially arranged along the optical axis from the object side to the image side. The imaging lens satisfies the following conditions: 0.1 <| f ₂ /f|<2.2; wherein f ₂ is one effective focal length of the second lens and f is one effective focal length of the imaging lens.

Description

成像鏡頭(二十九) Imaging lens (29)

本發明係有關於一種成像鏡頭。 The invention relates to an imaging lens.

現今的成像鏡頭之發展趨勢，除了不斷朝向小型化發展外，隨著不同的應用需求，還需具備大光圈、高解析度及抗環境溫度變化的能力，習知的成像鏡頭已經無法滿足現今的需求，需要有另一種新架構的成像鏡頭，才能同時滿足小型化、大光圈、高解析度及抗環境溫度變化的需求。 The current development trend of imaging lenses, in addition to the continuous development of miniaturization, with different application requirements, also needs to have a large aperture, high resolution and resistance to environmental temperature changes, the conventional imaging lens can no longer meet the current Demand, there needs to be another imaging lens with a new architecture in order to meet the needs of miniaturization, large aperture, high resolution and resistance to environmental temperature changes.

有鑑於此，本發明之主要目的在於提供一種成像鏡頭，其鏡頭總長度較短、光圈值較小、解析度較高、抗環境溫度變化，但是仍具有良好的光學性能。 In view of this, the main object of the present invention is to provide an imaging lens with a shorter overall length, smaller aperture value, higher resolution, and resistance to environmental temperature changes, but still has good optical performance.

本發明之成像鏡頭包括一第一透鏡、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡、一第六透鏡及一第七透鏡。第一透鏡具有負屈光力且包括一凸面朝向一物側。第二透鏡具有負屈光力。第三透鏡具有正屈光力。第四透鏡具有正屈光力。第五透鏡具有正屈光力。第六透鏡具有負屈光力。第七透鏡具有正屈光力且包括一凸面朝向物側。第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡、第六透鏡及第七透鏡沿著一光軸從物側至一像側依序排列。成像鏡頭滿足以下條件： 0.1<|f₂/f|<2.2；其中，f₂為第二透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The imaging lens of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has negative refractive power and includes a convex surface facing an object side. The second lens has negative refractive power. The third lens has a positive refractive power. The fourth lens has a positive refractive power. The fifth lens has a positive refractive power. The sixth lens has negative refractive power. The seventh lens has positive refractive power and includes a convex surface facing the object side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are sequentially arranged along an optical axis from the object side to an image side. The imaging lens satisfies the following conditions: 0.1 <| f ₂ /f|<2.2; where f ₂ is one effective focal length of the second lens and f is one effective focal length of the imaging lens.

本發明之另一種成像鏡頭包括一第一透鏡、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡、一第六透鏡及一第七透鏡。第一透鏡具有負屈光力且包括一凸面朝向一物側。第二透鏡具有負屈光力。第三透鏡具有正屈光力。第四透鏡具有正屈光力。第五透鏡具有正屈光力。第六透鏡具有負屈光力。第七透鏡具有正屈光力且包括一凸面朝向物側。第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡、第六透鏡及第七透鏡沿著一光軸從物側至一像側依序排列。成像鏡頭滿足以下條件：0.3<|f₆/f|<1.2；其中，f₆為第六透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 Another imaging lens of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has negative refractive power and includes a convex surface facing an object side. The second lens has negative refractive power. The third lens has a positive refractive power. The fourth lens has positive refractive power. The fifth lens has a positive refractive power. The sixth lens has negative refractive power. The seventh lens has positive refractive power and includes a convex surface facing the object side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are sequentially arranged along an optical axis from the object side to an image side. The imaging lens satisfies the following conditions: 0.3 <| f ₆ /f|<1.2; where f ₆ is an effective focal length of the sixth lens and f is an effective focal length of the imaging lens.

其中第二透鏡及第三透鏡膠合，第五透鏡及第六透鏡膠合。 The second lens and the third lens are cemented, and the fifth lens and the sixth lens are cemented.

其中第一透鏡可更包括一凹面朝向像側，第二透鏡包括一凹面朝向物側，第三透鏡包括一凸面朝向像側，第四透鏡為雙凸透鏡，包括一凸面朝向物側及另一凸面朝向像側，第五透鏡包括一凸面朝向物側，第六透鏡包括一凹面朝向像側，第七透鏡可更包括一凸面朝向像側。 The first lens may further include a concave surface toward the image side, the second lens includes a concave surface toward the object side, the third lens includes a convex surface toward the image side, and the fourth lens is a biconvex lens including a convex surface toward the object side and another convex surface. Toward the image side, the fifth lens includes a convex surface toward the object side, the sixth lens includes a concave surface toward the image side, and the seventh lens may further include a convex surface toward the image side.

其中第二透鏡可更包括一凹面朝向像側，第三透鏡可更包括一凸面朝向物側，第五透鏡可更包括一凸面朝向像側，第六透鏡可更包括一凹面朝向物側。 The second lens may further include a concave surface toward the image side, the third lens may further include a convex surface toward the object side, the fifth lens may further include a convex surface toward the image side, and the sixth lens may further include a concave surface toward the object side.

其中第二透鏡可更包括一凸面朝向像側，第三透鏡可更包括一凹面朝向物側，第五透鏡可更包括一凹面朝向像側，第六透鏡可更包括一凸面朝向物側。 The second lens may further include a convex surface facing the image side, the third lens may further include a concave surface toward the object side, the fifth lens may further include a concave surface toward the image side, and the sixth lens may further include a convex surface toward the object side.

其中成像鏡頭滿足以下條件：2.2<|f₁/f|<4.2；其中，f₁為第一透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The imaging lens satisfies the following conditions: 2.2 <| f ₁ /f|<4.2; wherein f ₁ is one effective focal length of the first lens and f is one effective focal length of the imaging lens.

其中成像鏡頭滿足以下條件：0.5<|f₄/f|<2.6；其中，f₄為第四透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The imaging lens satisfies the following conditions: 0.5 <| f ₄ /f|<2.6; wherein f ₄ is one of the effective focal lengths of the fourth lens and f is one of the effective focal lengths of the imaging lens.

其中成像鏡頭滿足以下條件：0.9<|f₇/f|<3.1；其中，f₇為第七透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The imaging lens satisfies the following conditions: 0.9 <| f ₇ /f|<3.1; wherein f ₇ is an effective focal length of the seventh lens, and f is an effective focal length of the imaging lens.

其中成像鏡頭滿足以下條件：0.1<BFL/TTL<0.4；0.3<f/TTL<0.4；其中，BFL為第七透鏡之一像側面至一成像面於光軸上之一間距，TTL為第一透鏡之一物側面至成像面於光軸上之一間距，f為成像鏡頭之一有效焦距。 The imaging lens satisfies the following conditions: 0.1 <BFL / TTL <0.4; 0.3 <f / TTL <0.4; Among them, BFL is a distance from the image side of the seventh lens to an imaging surface on the optical axis, and TTL is the first A distance from an object side of the lens to the imaging plane on the optical axis, and f is an effective focal length of the imaging lens.

為使本發明之上述目的、特徵、和優點能更明顯易懂，下文特舉較佳實施例並配合所附圖式做詳細說明。 In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, preferred embodiments are described in detail below in conjunction with the accompanying drawings.

1、2‧‧‧成像鏡頭 1, 2‧‧‧ imaging lens

L11、L21‧‧‧第一透鏡 L11, L21‧‧‧First lens

L12、L22‧‧‧第二透鏡 L12, L22‧‧‧Second lens

L13、L23‧‧‧第三透鏡 L13, L23‧‧‧ Third lens

L14、L24‧‧‧第四透鏡 L14, L24‧‧‧ Fourth lens

L15、L25‧‧‧第五透鏡 L15, L25‧‧‧ fifth lens

L16、L26‧‧‧第六透鏡 L16, L26‧‧‧ Sixth lens

L17、L27‧‧‧第七透鏡 L17, L27‧‧‧ Seventh lens

ST1、ST2‧‧‧光圈 ST1, ST2 ‧‧‧ aperture

OF1、OF2‧‧‧濾光片 OF1, OF2‧‧‧ filters

CG1、CG2‧‧‧保護玻璃 CG1, CG2‧‧‧protective glass

OA1、OA2‧‧‧光軸 OA1, OA2 ‧‧‧ Optical axis

IMA1、IMA2‧‧‧成像面 IMA1, IMA2‧‧‧ imaging surface

S11、S21‧‧‧第一透鏡物側面 S11, S21‧‧‧‧ the first lens object side

S12、S22‧‧‧第一透鏡像側面 S12, S22 ‧‧‧ side of the first lens image

S13、S23‧‧‧第二透鏡物側面 S13, S23‧‧‧‧Second lens object side

S14、S24‧‧‧第二透鏡像側面(第三透鏡物側面) S14, S24‧‧‧‧Second lens image side (third lens object side)

S15、S25‧‧‧第三透鏡像側面 S15, S25‧‧‧‧ Third lens image side

S16、S26‧‧‧光圈面 S16, S26‧‧‧ aperture surface

S17、S27‧‧‧第四透鏡物側面 S17, S27 ‧‧‧ Fourth lens object side

S18、S28‧‧‧第四透鏡像側面 S18, S28 ‧‧‧ Fourth lens image side

S19、S29‧‧‧第五透鏡物側面 S19, S29‧‧‧‧Fifth lens object side

S110、S210‧‧‧第五透鏡像側面(第六透鏡物側面) S110, S210‧‧‧‧ Fifth lens image side (sixth lens object side)

S111、S211‧‧‧第六透鏡像側面 S111, S211‧‧‧‧Sixth lens image side

S112、S212‧‧‧第七透鏡物側面 S112, S212‧‧‧ Seventh lens object side

S113、S213‧‧‧第七透鏡像側面 S113, S213‧‧‧ Seventh lens image side

S114、S214‧‧‧濾光片物側面 S114, S214‧‧‧‧ Side of filter object

S115、S215‧‧‧濾光片像側面 S115, S215‧‧‧ Filter side view

S116、S216‧‧‧保護玻璃物側面 S116, S216‧‧‧Protect glass side

S117、S217‧‧‧保護玻璃像側面 S117, S217‧‧‧ Protected glass like side

第1圖係依據本發明之成像鏡頭之第一實施例的透鏡配置示意圖。 FIG. 1 is a schematic diagram of a lens configuration of a first embodiment of an imaging lens according to the present invention.

第2A圖係依據本發明之成像鏡頭之第一實施例的縱向像差(Longitudinal Aberration)圖。 FIG. 2A is a longitudinal aberration diagram of the first embodiment of the imaging lens according to the present invention.

第2B圖係依據本發明之成像鏡頭之第一實施例的場曲(Field Curvature)圖。 FIG. 2B is a Field Curvature diagram of the first embodiment of the imaging lens according to the present invention.

第2C圖係依據本發明之成像鏡頭之第一實施例的畸變(Distortion)圖。 FIG. 2C is a distortion diagram of the first embodiment of the imaging lens according to the present invention.

第2D圖係依據本發明之成像鏡頭之第一實施例的橫向色差(Lateral Color)圖。 FIG. 2D is a lateral color aberration diagram of the first embodiment of the imaging lens according to the present invention.

第2E圖係依據本發明之成像鏡頭之第一實施例的相對照度(Relative Illumination)圖。 FIG. 2E is a relative illumination diagram of the first embodiment of the imaging lens according to the present invention.

第2F圖係依據本發明之成像鏡頭之第一實施例的調變轉換函數(Modulation Transfer Function)圖。 FIG. 2F is a Modulation Transfer Function diagram of the first embodiment of the imaging lens according to the present invention.

第2G圖係依據本發明之成像鏡頭之第一實施例的離焦調變轉換函數(Through Focus Modulation Transfer Function)圖。 FIG. 2G is a diagram of a Through Focus Modulation Transfer Function of the first embodiment of the imaging lens according to the present invention.

第3圖係依據本發明之成像鏡頭之第二實施例的透鏡配置示意圖。 FIG. 3 is a schematic diagram of a lens configuration of a second embodiment of an imaging lens according to the present invention.

第4A圖係依據本發明之成像鏡頭之第二實施例的縱向像差(Longitudinal Aberration)圖。 FIG. 4A is a longitudinal aberration diagram of a second embodiment of an imaging lens according to the present invention.

第4B圖係依據本發明之成像鏡頭之第二實施例的場曲(Field Curvature)圖。 FIG. 4B is a Field Curvature diagram of the second embodiment of the imaging lens according to the present invention.

第4C圖係依據本發明之成像鏡頭之第二實施例的畸變(Distortion)圖。 FIG. 4C is a distortion diagram of the second embodiment of the imaging lens according to the present invention.

第4D圖係依據本發明之成像鏡頭之第二實施例的橫向色差(Lateral Color)圖。 FIG. 4D is a lateral color aberration diagram of the second embodiment of the imaging lens according to the present invention.

第4E圖係依據本發明之成像鏡頭之第二實施例的相對照度(Relative Illumination)圖。 FIG. 4E is a relative illumination diagram of the second embodiment of the imaging lens according to the present invention.

第4F圖係依據本發明之成像鏡頭之第二實施例的調變轉換函數(Modulation Transfer Function)圖。 FIG. 4F is a Modulation Transfer Function diagram of a second embodiment of an imaging lens according to the present invention.

第4G圖係依據本發明之成像鏡頭之第二實施例的離焦調變轉換函數(Through Focus Modulation Transfer Function)圖。 FIG. 4G is a diagram of a Through Focus Modulation Transfer Function of a second embodiment of an imaging lens according to the present invention.

本發明提供一種成像鏡頭，包括：一第一透鏡具有負屈光力，此第一透鏡包括一凸面朝向一物側；一第二透鏡具有負屈光力；一第三透鏡具有正屈光力；一第四透鏡具有正屈光力；一第五透鏡具有正屈光力；一第六透鏡具有負屈光力；及一第七透鏡具有正屈光力，此第七透鏡包括一凸面朝向物側；其中第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡、第六透鏡及第七透鏡沿著一光軸從物側至一像側依序排列；其中成像鏡頭滿足以下條件：0.1<|f₂/f|<2.2；其中，f₂為第二透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The present invention provides an imaging lens including: a first lens having negative refractive power, the first lens including a convex surface facing an object side; a second lens having negative refractive power; a third lens having positive refractive power; and a fourth lens having A positive refractive power; a fifth lens having a positive refractive power; a sixth lens having a negative refractive power; and a seventh lens having a positive refractive power, the seventh lens including a convex surface facing the object side; wherein the first lens, the second lens, the third lens The lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are sequentially arranged along an optical axis from the object side to an image side; wherein the imaging lens satisfies the following conditions: 0.1 <| f ₂ /f|<2.2 ; Where f ₂ is an effective focal length of the second lens and f is an effective focal length of the imaging lens.

本發明提供另一種成像鏡頭，包括：一第一透鏡具有負屈光力，此第一透鏡包括一凸面朝向一物側；一第二透鏡具有負屈光力；一第三透鏡具有正屈光力；一第四透鏡具有正屈光力；一第五透鏡具有正屈光力；一第六透鏡具有負屈光力；及一第七透鏡具有正屈光力，此第七透鏡包括一凸面朝向物側；其中第一透鏡、第二透鏡、第三透鏡、第四透鏡、第五透鏡、第六透鏡及第七透鏡沿著一光軸從物側至一像側依序排列；其中成像鏡頭滿足以下條件：0.3<|f₆/f|<1.2；其中，f₆為第六透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The present invention provides another imaging lens including: a first lens having a negative refractive power, the first lens including a convex surface facing an object side; a second lens having a negative refractive power; a third lens having a positive refractive power; and a fourth lens A fifth lens has a positive refractive power; a sixth lens has a negative refractive power; and a seventh lens has a positive refractive power, the seventh lens includes a convex surface facing the object side; wherein the first lens, the second lens, the first lens The three lenses, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are sequentially arranged along an optical axis from the object side to an image side; wherein the imaging lens satisfies the following conditions: 0.3 <| f ₆ / f | <1.2; where f ₆ is an effective focal length of the sixth lens and f is an effective focal length of the imaging lens.

請參閱底下表一、表二、表四及表五，其中表一及表四分别為依據本發明之成像鏡頭之第一實施例及第二實施例的各透鏡之相關參數表，表二及表五分别為表一及表四中各個透鏡之非球面表面之相關參數表。 Please refer to the following Tables I, II, IV and V. Tables I and IV are the relevant parameter tables of the first and second embodiments of the imaging lens according to the present invention, respectively. Table 5 is a table of related parameters of the aspheric surfaces of each lens in Tables 1 and 4.

第1、3圖分別為本發明之成像鏡頭之第一、二實施例的透鏡配置示意圖，其中第一透鏡L11、L21具有負屈光力由玻璃材質製成，其物側面S11、S21為凸面，物側面S11、S21與像側面S12、S22皆為球面表面。 Figures 1 and 3 are lens configuration diagrams of the first and second embodiments of the imaging lens of the present invention, respectively. The first lenses L11 and L21 have negative refractive power and are made of glass. The object side surfaces S11 and S21 are convex surfaces, and the object side surfaces S11 and S21 and the image side surfaces S12 and S22 are spherical surfaces.

第二透鏡L12、L22具有負屈光力由玻璃材質製成，其物側面S13、S23與像側面S14、S24皆為球面表面。 The second lenses L12 and L22 have negative refractive power and are made of glass material, and the object sides S13 and S23 and the image sides S14 and S24 are spherical surfaces.

第三透鏡L13、L23具有正屈光力由玻璃材質製成，其物側面514、S24與像側面S15、S25皆為球面表面。 The third lenses L13 and L23 have a positive refractive power and are made of glass material, and the object side surfaces 514 and S24 and the image side surfaces S15 and S25 thereof are spherical surfaces.

上述第二透鏡L12、L22分別與第三透鏡L13、L23膠合。 The second lenses L12 and L22 are cemented with the third lenses L13 and L23, respectively.

第四透鏡L14、L24具有正屈光力由玻璃材質製成，其物側面S17、S27與像側面S18、S28皆為非球面表面。 The fourth lenses L14 and L24 have a positive refractive power and are made of glass material, and the object sides S17 and S27 and the image sides S18 and S28 are aspherical surfaces.

第五透鏡L15、L25具有正屈光力由玻璃材質製成，其物側面S19、S29與像側面S110、S210皆為球面表面。 The fifth lenses L15 and L25 have a positive refractive power and are made of glass material. The object sides S19 and S29 and the image sides S110 and S210 are spherical surfaces.

第六透鏡L16、L26具有負屈光力由玻璃材質製成，其物側面S110、S210與像側面S111、S211皆為球面表面。 The sixth lenses L16 and L26 have negative refractive power and are made of glass material. The object sides S110 and S210 and the image sides S111 and S211 are spherical surfaces.

上述第五透鏡L15、L25分別與第六透鏡L16、L26膠合。 The fifth lenses L15 and L25 are cemented with the sixth lenses L16 and L26, respectively.

第七透鏡L17、L27具有正屈光力由玻璃材質製成，其物側面S112、S212為凸面，物側面S112、S212與像側面S113、S213皆為非球面表面。 The seventh lenses L17 and L27 have a positive refractive power and are made of glass. The object sides S112 and S212 are convex, and the object sides S112 and S212 and the image sides S113 and S213 are aspherical surfaces.

另外，成像鏡頭1、2至少滿足底下其中一條件：0.1<|f₂/f|<2.2 (1) In addition, the imaging lenses 1 and 2 meet at least one of the following conditions: 0.1 <| f ₂ /f|<2.2 (1)

0.3<|f₆/f|<1.2 (2) 0.3 <| f ₆ /f|<1.2 (2)

2.2<|f₁/f|<4.2 (3) 2.2 <| f ₁ /f|<4.2 (3)

0.5<|f₄/f|<2.6 (4) 0.5 <| f ₄ /f|<2.6 (4)

0.9<|f₇/f|<3.1 (5) 0.9 <| f ₇ /f|<3.1 (5)

0.1<BFL/TTL<0.4 (6) 0.1 <BFL / TTL <0.4 (6)

0.3<f/TTL<0.4 (7) 0.3 <f / TTL <0.4 (7)

其中，f為第一實施例至第二實施例中，成像鏡頭1、2之一有效焦距，f₁為第一實施例至第二實施例中，第一透鏡L11、L21之一有效焦距，f₂為第一實施例至第二實施例中，第二透鏡L12、L22之一有效焦距，f₄為第一實施例至第二實施例中，第四透鏡L14、L24之一有效焦距，f₆為第一實施例至第二實施例中，第六透鏡L16、L26之一有效焦距，f₇為第一實施例至第二實施例中，第七透鏡L17、L27之一有效焦距，BFL為第一實施例至第二實施例中，第七透鏡L17、L27之像側面S113、S213分別至成像面IMA1、IMA2於光軸OA1、OA2上之一間距，TTL為第一實施例至第二實施例中，第一透鏡L11、L21之物側面S11、S21分別至成像面IMA1、IMA2於光軸OA1、OA2上之一間距。使得成像鏡頭1、2能有效的縮短鏡頭總長度、有效的縮小光圈值、有效的提升解析度、有效的抗環境溫度變化、有效的修正像差。 Among them, f is an effective focal length of one of the imaging lenses 1 and 2 in the first to second embodiments, and f ₁ is an effective focal length of one of the first lenses L11 and L21 in the first to second embodiments. f ₂ is an effective focal length of one of the second lenses L12 and L22 in the first to second embodiments, and f ₄ is an effective focal length of one of the fourth lenses L14 and L24 in the first to second embodiments. f ₆ is an effective focal length of one of the sixth lenses L16 and L26 in the first to second embodiments, and f ₇ is an effective focal length of one of the seventh lenses L17 and L27 in the first to second embodiments. BFL is the distance between the image sides S113 and S213 of the seventh lenses L17 and L27 to the imaging surfaces IMA1 and IMA2 on the optical axes OA1 and OA2, and TTL is the distance from the first embodiment to the second embodiment. In the second embodiment, the object sides S11 and S21 of the first lenses L11 and L21 are spaced from the imaging surfaces IMA1 and IMA2 on one of the optical axes OA1 and OA2, respectively. The imaging lenses 1 and 2 can effectively shorten the total length of the lens, effectively reduce the aperture value, effectively improve the resolution, effectively resist the change of the ambient temperature, and effectively correct the aberrations.

現詳細說明本發明之成像鏡頭之第一實施例。請參閱第1圖，成像鏡頭1沿著一光軸OA1從一物側至一像側依序包括一第一透鏡L11、一第二透鏡L12、一第三透鏡L13、一光圈ST1、一第四透鏡L14、一第五透鏡L15、一第六透鏡L16、一第七透鏡L17、一濾光片OF1及一保護玻璃CG1。成像時，來自物側之光線最後成像於一成像面IMA1上。根據【實施方式】第一至十二段落，其中：第一透鏡L11可更為彎月型透鏡，其像側面S12為凹面；第二透鏡L12可更為雙凹透鏡，其物側面S13為凹面，像側面S14為凹面；第三透鏡L13可更為雙凸透鏡，其物側面S14為凸面，像側面S15為凸面；第四透鏡L14可更為雙凸透鏡，其物側面S17為凸面，像側面S18為凸面；第五透鏡L15可更為雙凸透鏡，其物側面S19為凸面，像側面S110為凸面；第六透鏡L16可更為雙凹透鏡，其物側面S110為凹面，像側面S111為凹面；第七透鏡L17可更為雙凸透鏡，其像側面S113為凸面；濾光片OF1其物側面S114與像側面S115皆為平面；保護玻璃CG1其物側面S116與像側面S117皆為平面。 A first embodiment of the imaging lens of the present invention will now be described in detail. Referring to FIG. 1, the imaging lens 1 includes a first lens L11, a second lens L12, a third lens L13, an aperture ST1, and a first lens L11 in order from an object side to an image side along an optical axis OA1. The four lenses L14, a fifth lens L15, a sixth lens L16, a seventh lens L17, a filter OF1, and a protective glass CG1. During imaging, the light from the object side is finally imaged on an imaging surface IMA1. According to the first embodiment, the first lens L11 may be a meniscus lens, and its image side S12 is concave; The second lens L12 may be a double-concave lens, and its object side S13 is concave, and the image side S14 is concave. The third lens L13 may be a double-convex lens, and its object side S14 is convex, and the image side S15 is convex. It can be a more lenticular lens, the object side S17 is convex, and the image side S18 is convex; the fifth lens L15 can be more convex lens, its object side S19 is convex, and the image side S110 is convex; the sixth lens L16 can be more double Concave lens, the object side S110 is concave, and the image side S111 is concave; the seventh lens L17 can be a biconvex lens, and the image side S113 is convex; the filter OF1 has the object side S114 and the image side S115 as flat surfaces; protective glass Both the object side S116 and the image side S117 of CG1 are flat.

利用上述透鏡、光圈ST1及至少滿足條件(1)至條件(7)其中一條件之設計，使得成像鏡頭1能有效的縮短鏡頭總長度、有效的縮小光圈值、有效的提升解析度、有效的抗環境溫度變化、有效的修正色差、有效的修正像差。 By using the lens, the aperture ST1, and a design that meets at least one of the conditions (1) to (7), the imaging lens 1 can effectively shorten the total lens length, effectively reduce the aperture value, effectively improve the resolution, and effectively Resistant to ambient temperature changes, effective correction of chromatic aberration, effective correction of aberration.

表一為第1圖中成像鏡頭1之各透鏡之相關參數表，表一資料顯示，第一實施例之成像鏡頭1之有效焦距等於9.659mm、光圈值等於1.8、鏡頭總長度等於29.914mm、垂直視場等於26.7度。 Table 1 is the relevant parameter table of each lens of imaging lens 1 in Figure 1. The data in Table 1 shows that the effective focal length of imaging lens 1 of the first embodiment is equal to 9.659 mm, the aperture value is equal to 1.8, and the total lens length is equal to 29.914 mm. The vertical field of view is equal to 26.7 degrees.

表一中各個透鏡之非球面表面凹陷度z由下列公式所得到：z=ch²/{1+[1-(k+1)c²h²]^1/2}+Ah⁴+Bh⁶+Ch⁸+Dh¹⁰ The aspheric surface depression z of each lens in Table 1 is obtained by the following formula: z = ch ² / {1+ [1- (k + 1) c ² h ² ] ^1/2 } + Ah ⁴ + Bh ⁶ + Ch ⁸ + Dh ¹⁰

其中：c：曲率；h：透鏡表面任一點至光軸之垂直距離； k：圓錐係數；A~D：非球面係數。 Where: c: curvature; h: vertical distance from any point on the lens surface to the optical axis; k: conic coefficient; A ~ D: aspherical coefficient.

表二為表一中各個透鏡之非球面表面之相關參數表，其中k為圓錐係數(Conic Constant)、A~D為非球面係數。 Table 2 is a table of related parameters of the aspheric surface of each lens in Table 1, where k is the Conic Constant and A ~ D are aspheric coefficients.

表三為第一實施例之成像鏡頭1之相關參數值及其對應條件(1)至條件(7)之計算值，由表三可知，第一實施例之成像鏡頭1皆能滿足條件(1)至條件(7)之要求。 Table 3 shows the relevant parameter values of the imaging lens 1 of the first embodiment and the calculated values of corresponding conditions (1) to (7). As can be seen from Table 3, the imaging lens 1 of the first embodiment can satisfy the condition (1 ) To the requirements of condition (7).

另外，第一實施例之成像鏡頭1的光學性能也可達到要求，這可從第2A至第2G圖看出。第2A圖所示的，是第一實施例之成像鏡頭1的縱向像差(Longitudinal Aberration)圖。第2B圖所示的，是第一實施例之成像鏡頭1的場曲(Field Curvature)圖。第2C圖所示的，是第一實施例之成像鏡頭1的畸變(Distortion)圖。第2D圖所示的，是第一實施例之成像鏡頭1的橫向色差(Lateral Color)圖。第2E圖所示的，是第一實施例之成像鏡頭1的相對照度(Relative Illumination)圖。第2F圖所示的，是第一實施例之成像鏡頭1的調變轉換函數(Modulation Transfer Function)圖。第2G圖所示的，是第一實施例之成像鏡頭1的離焦調變轉換函數(Through Focus Modulation Transfer Function)圖。 In addition, the optical performance of the imaging lens 1 of the first embodiment can also meet the requirements. This can be seen from Figures 2A to 2G. FIG. 2A is a longitudinal aberration diagram of the imaging lens 1 of the first embodiment. FIG. 2B is a Field Curvature diagram of the imaging lens 1 of the first embodiment. FIG. 2C is a distortion diagram of the imaging lens 1 of the first embodiment. FIG. 2D is a lateral color aberration diagram of the imaging lens 1 of the first embodiment. FIG. 2E is a relative illumination diagram of the imaging lens 1 of the first embodiment. Shown in FIG. 2F is a diagram of a Modulation Transfer Function of the imaging lens 1 of the first embodiment. FIG. 2G is a diagram of a Through Focus Modulation Transfer Function of the imaging lens 1 of the first embodiment.

由第2A圖可看出，第一實施例之成像鏡頭1其縱向像差(Longitudinal Aberration)介於-0.03mm至0.02mm之間。 It can be seen from FIG. 2A that the longitudinal aberration (Longitudinal Aberration) of the imaging lens 1 of the first embodiment is between -0.03 mm and 0.02 mm.

由第2B圖可看出，第一實施例之成像鏡頭1其場曲(Field Curvature)介於-0.02mm至0.03mm之間。 It can be seen from FIG. 2B that the Field Curvature of the imaging lens 1 of the first embodiment is between -0.02mm and 0.03mm.

由第2C圖可看出，第一實施例之成像鏡頭1其畸變(Distortion)介於-5%至0%之間。 It can be seen from FIG. 2C that the distortion (Distortion) of the imaging lens 1 of the first embodiment is between -5% and 0%.

由第2D圖可看出，第一實施例之成像鏡頭1其橫向色差(Lateral Color)介於0μm至4μm之間。 As can be seen from the 2D diagram, the lateral color aberration (Lateral Color) of the imaging lens 1 of the first embodiment is between 0 μm and 4 μm.

由第2E圖可看出，第一實施例之成像鏡頭1其相對照度(Relative Illumination)介於0.84至1.0之間。 It can be seen from FIG. 2E that the relative illumination of the imaging lens 1 of the first embodiment is between 0.84 and 1.0.

由第2F圖可看出，第一實施例之成像鏡頭1其調變轉換函數(Modulation Transfer Function)值介於0.42至1.0之間。 It can be seen from FIG. 2F that the Modulation Transfer Function value of the imaging lens 1 of the first embodiment is between 0.42 and 1.0.

由第2G圖可看出，第一實施例之成像鏡頭1，當焦點偏移介於-0.05mm至0.05mm之間其調變轉換函數值介於0至0.8之間。 It can be seen from FIG. 2G that when the imaging lens 1 of the first embodiment is out of focus, The value of its modulation transfer function is between 0-0.8mm between -0.05mm and 0.05mm.

顯見第一實施例之成像鏡頭1之縱向像差(Longitudinal Aberration)、場曲(Field Curvature)、畸變(Distortion)、橫向色差(Lateral Color)都能被有效修正，相對照度(Relative Illumination)、鏡頭解析度(Resolution)、焦深(Depth of Focus)也都能滿足要求，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration (Longitudinal Aberration), field curvature (Distortion), and lateral color aberration (Lateral Color) of the imaging lens 1 of the first embodiment can be effectively corrected. Relative Illumination, lens Resolution and Depth of Focus can also meet the requirements, so as to obtain better optical performance.

請參閱第3圖，第3圖係依據本發明之成像鏡頭之第二實施例的透鏡配置示意圖。成像鏡頭2沿著一光軸OA2從一物側至一像側依序包括一第一透鏡L21、一第二透鏡L22、一第三透鏡L23、一光圈ST2、一第四透鏡L24、一第五透鏡L25、一第六透鏡L26、一第七透鏡L27、一濾光片OF2及一保護玻璃CG2。成像時，來自物側之光線最後成像於一成像面IMA2上。根據【實施方式】第一至十二段落，其中：第一透鏡L21之表面形狀凹凸與第一實施例中之第一透鏡L11相似，在此皆不加以贅述；第二透鏡L22可更為彎月型透鏡，其物側面S23為凹面，像側面S24為凸面；第三透鏡L23可更為彎月型透鏡，其物側面S24為凹面，像側面S25為凸面；第四透鏡L24之表面形狀凹凸與第一實施例中之第四透鏡L14相似，在此皆不加以贅述；第五透鏡L25可更為彎月型透鏡，其物側面S29為凸面，像側面S210為凹面；第六透鏡L26可更為彎月型透鏡，其物側面S210為凸面，像側面S211為凹面；第七透鏡L27之表面形狀凹凸與第一實施例中之第七透鏡L17相似，在此皆不加以贅述；濾光片OF2其物側面S214與像側面S215皆為平面；保護玻璃CG2其物側面S216與像側面S217皆為平面。 Please refer to FIG. 3, which is a schematic diagram of a lens configuration of a second embodiment of an imaging lens according to the present invention. The imaging lens 2 includes a first lens L21, a second lens L22, a third lens L23, an aperture ST2, a fourth lens L24, and a first lens L21 in order from an object side to an image side along an optical axis OA2. Five lenses L25, a sixth lens L26, a seventh lens L27, a filter OF2, and a protective glass CG2. During imaging, the light from the object side is finally imaged on an imaging surface IMA2. According to the first to twelfth paragraphs of the embodiment, the surface shape of the first lens L21 is similar to that of the first lens L11 in the first embodiment, which is not described here; the second lens L22 may be more curved The moon-shaped lens has a concave side surface S23 and a convex image side S24; the third lens L23 can be a more meniscus lens, and its objective side S24 is concave and the image side S25 is convex; the surface shape of the fourth lens L24 is uneven It is similar to the fourth lens L14 in the first embodiment, and will not be repeated here; the fifth lens L25 may be a meniscus lens, the object side S29 is convex, and the image side S210 is concave; the sixth lens L26 may be More meniscus lenses, the object side S210 is convex, and the image side S211 is concave; the surface shape of the seventh lens L27 is similar to that of the seventh lens L17 in the first embodiment, and will not be described here; filtering The object side S214 and the image side S215 of the sheet OF2 are both flat; the object side S216 and the image side S217 of the cover glass CG2 are both flat.

利用上述透鏡、光圈ST2及至少滿足條件(1)至條件(7)其中一條件之設計，使得成像鏡頭2能有效的縮短鏡頭總長度、有效的縮小光圈值、有效的提升解析度、有效的抗環境溫度變化、有效的修正色差、有效的修正像差。 Utilizing the above lens, aperture ST2, and a design that meets at least one of the conditions (1) to (7), the imaging lens 2 can effectively shorten the total lens length, effectively reduce the aperture value, effectively improve the resolution, and effectively Resistant to ambient temperature changes, effective correction of chromatic aberration, effective correction of aberration.

表四為第3圖中成像鏡頭2之各透鏡之相關參數表，表四資料顯示，第二實施例之成像鏡頭2之有效焦距等於9.200mm、光圈值等於1.8、鏡頭總長度等於24.95mm、垂直視場等於26.7度。 Table 4 shows the relevant parameters of each lens of imaging lens 2 in Figure 3. The data in Table 4 shows that the effective focal length of imaging lens 2 of the second embodiment is 9.200 mm, the aperture value is 1.8, and the total lens length is 24.95 mm. The vertical field of view is equal to 26.7 degrees.

表四中各個透鏡之非球面表面凹陷度z之定義，與第一實施例中表一之各個透鏡之非球面表面凹陷度z之定義相同，在此皆不加以贅述。 The definition of the aspheric surface depression z of each lens in Table 4 is the same as the definition of the aspheric surface depression z of each lens in Table 1 in the first embodiment, and will not be repeated here.

表五為表四中各個透鏡之非球面表面之相關參數表，其中k為圓錐係數(Conic Constant)、A~G為非球面係數。 Table 5 is a table of related parameters of the aspheric surface of each lens in Table 4, where k is the Conic Constant and A ~ G are aspheric coefficients.

表六為第二實施例之成像鏡頭2之相關參數值及其對應條件(1)至條件(7)之計算值，由表六可知，第二實施例之成像鏡頭2皆能滿足條件(1)至條件(7)之要求。 Table 6 shows the related parameter values of the imaging lens 2 of the second embodiment and the calculated values of corresponding conditions (1) to (7). As can be seen from Table 6, the imaging lens 2 of the second embodiment can satisfy the condition (1 ) To the requirements of condition (7).

另外，第二實施例之成像鏡頭2的光學性能也可達到要求，這可從第4A至第4G圖看出。第4A圖所示的，是第二實施例之成像鏡頭2的縱向像差(Longitudinal Aberration)圖。第4B圖所示的，是第二實施例之成像鏡頭2的場曲(Field Curvature)圖。第4C圖所示的，是第二實施例之成像鏡頭2的畸變(Distortion)圖。第4D圖所示的，是第二實施例之成像鏡頭2的橫向色差(Lateral Color)圖。第4E圖所示的，是第二實施例之成像鏡頭2的相對照度(Relative Illumination)圖。第4F圖所示的，是第二實施例之成像鏡頭2的調變轉換函數(Modulation Transfer Function)圖。第4G圖所示的，是第二實施例之成像鏡頭2的離焦調變轉換函數(Through Focus Modulation Transfer Function)圖。 In addition, the optical performance of the imaging lens 2 of the second embodiment can also meet the requirements, which can be seen from FIGS. 4A to 4G. FIG. 4A is a longitudinal aberration diagram of the imaging lens 2 of the second embodiment. FIG. 4B is a Field Curvature diagram of the imaging lens 2 of the second embodiment. FIG. 4C is a distortion diagram of the imaging lens 2 of the second embodiment. 4D is a lateral color aberration diagram of the imaging lens 2 of the second embodiment. FIG. 4E is a relative illumination diagram of the imaging lens 2 of the second embodiment. FIG. 4F is a Modulation Transfer Function diagram of the imaging lens 2 of the second embodiment. Shown in FIG. 4G is a diagram of a Through Focus Modulation Transfer Function of the imaging lens 2 of the second embodiment.

由第4A圖可看出，第二實施例之成像鏡頭2其縱向像差(Longitudinal Aberration)介於-0.04mm至0.02mm之間。 It can be seen from FIG. 4A that the longitudinal aberration (Longitudinal Aberration) of the imaging lens 2 of the second embodiment is between -0.04 mm and 0.02 mm.

由第4B圖可看出，第二實施例之成像鏡頭2其場曲(Field Curvature)介於-0.06mm至0.04mm之間。 It can be seen from FIG. 4B that the field curvature of the imaging lens 2 of the second embodiment (Field Curvature) is between -0.06mm and 0.04mm.

由第4C圖可看出，第二實施例之成像鏡頭2其畸變(Distortion)介於-5%至0%之間。 It can be seen from FIG. 4C that the distortion (Distortion) of the imaging lens 2 of the second embodiment is between -5% and 0%.

由第4D圖可看出，第二實施例之成像鏡頭2其橫向色差(Lateral Color)介於-1μm至2.5μm之間。 It can be seen from FIG. 4D that the lateral color aberration (Lateral Color) of the imaging lens 2 of the second embodiment is between -1 μm and 2.5 μm.

由第4E圖可看出，第二實施例之成像鏡頭2其相對照度(Relative Illumination)介於0.82至1.0之間。 It can be seen from FIG. 4E that the relative illumination (Relative Illumination) of the imaging lens 2 of the second embodiment is between 0.82 and 1.0.

由第4F圖可看出，第二實施例之成像鏡頭2其調變轉換函數(Modulation Transfer Function)值介於0.50至1.0之間。 It can be seen from FIG. 4F that the value of the Modulation Transfer Function of the imaging lens 2 of the second embodiment is between 0.50 and 1.0.

由第2G圖可看出，第二實施例之成像鏡頭2，當焦點偏移介於-0.05mm至0.05mm之間其調變轉換函數值介於0至0.8之間。 It can be seen from FIG. 2G that the imaging lens 2 of the second embodiment has a modulation conversion function value between 0 and 0.8 when the focus shift is between -0.05mm and 0.05mm.

顯見第二實施例之成像鏡頭2之縱向像差(Longitudinal Aberration)、場曲(Field Curvature)、畸變(Distortion)、橫向色差(Lateral Color)都能被有效修正，相對照度(Relative Illumination)、鏡頭解析度(Resolution)、焦深(Depth of Focus)也都能滿足要求，從而得到較佳的光學性能。 It can be seen that the longitudinal aberration (Longitudinal Aberration), field curvature (Distortion), and lateral color aberration (Lateral Color) of the imaging lens 2 of the second embodiment can be effectively corrected. Relative Illumination, lens Resolution and Depth of Focus can also meet the requirements, so as to obtain better optical performance.

雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟悉此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此本發明的保護範圍當視後附的申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. The scope shall be determined by the scope of the attached patent application.

Claims

一種成像鏡頭，主要由一第一透鏡、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡、一第六透鏡以及一第七透鏡組成；該第一透鏡具有負屈光力，該第一透鏡包括一凸面朝向一物側；該第二透鏡具有負屈光力；該第三透鏡具有正屈光力；該第四透鏡具有正屈光力；該第五透鏡具有正屈光力；該第六透鏡具有負屈光力；以及該第七透鏡具有正屈光力，該第七透鏡包括一凸面朝向該物側；其中該第一透鏡、該第二透鏡、該第三透鏡、該第四透鏡、該第五透鏡、該第六透鏡以及該第七透鏡沿著一光軸從該物側至一像側依序排列；其中該成像鏡頭滿足以下條件：0.1<|f₂/f|<2.2；其中，f₂為該第二透鏡之一有效焦距，f為該成像鏡頭之一有效焦距；其中該第二透鏡以及該第三透鏡膠合。An imaging lens is mainly composed of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens; the first lens has a negative refractive power, The first lens includes a convex surface facing an object side; the second lens has negative refractive power; the third lens has positive refractive power; the fourth lens has positive refractive power; the fifth lens has positive refractive power; the sixth lens has negative Refractive power; and the seventh lens has positive refractive power, the seventh lens includes a convex surface facing the object side; wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the The sixth lens and the seventh lens are sequentially arranged along the optical axis from the object side to an image side; wherein the imaging lens satisfies the following conditions: 0.1 <| f ₂ /f|<2.2; where f _{2 is} the An effective focal length of one of the second lenses, f is an effective focal length of the imaging lens; wherein the second lens and the third lens are cemented.

一種成像鏡頭，主要由一第一透鏡、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡、一第六透鏡以及一第七透鏡組成；該第一透鏡具有負屈光力，該第一透鏡包括一凸面朝向一物側；該第二透鏡具有負屈光力；該第三透鏡具有正屈光力；該第四透鏡具有正屈光力；該第五透鏡具有正屈光力；該第六透鏡具有負屈光力；以及該第七透鏡具有正屈光力，該第七透鏡包括一凸面朝向該物側；其中該第一透鏡、該第二透鏡、該第三透鏡、該第四透鏡、該第五透鏡、該第六透鏡以及該第七透鏡沿著一光軸從該物側至一像側依序排列；其中該成像鏡頭滿足以下條件；0.3<|f₆/f|<1.2；其中，f₆為該第六透鏡之一有效焦距，f為該成像鏡頭之一有效焦距；其中該第五透鏡以及該第六透鏡膠合。An imaging lens is mainly composed of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens; the first lens has a negative refractive power, The first lens includes a convex surface facing an object side; the second lens has negative refractive power; the third lens has positive refractive power; the fourth lens has positive refractive power; the fifth lens has positive refractive power; the sixth lens has negative Refractive power; and the seventh lens has positive refractive power, the seventh lens includes a convex surface facing the object side; wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the The sixth lens and the seventh lens are sequentially arranged along the optical axis from the object side to an image side; wherein the imaging lens satisfies the following conditions; 0.3 <| f ₆ /f|<1.2; where f _{6 is} the One of the sixth lenses has an effective focal length, and f is an effective focal length of the imaging lens; wherein the fifth lens and the sixth lens are cemented.

如申請專利範圍第1項所述之成像鏡頭，其中該第五透鏡以及該第六透鏡膠合。The imaging lens according to item 1 of the patent application scope, wherein the fifth lens and the sixth lens are cemented.

如申請專利範圍第1項或第2項所述之成像鏡頭，其中：該第一透鏡更包括一凹面朝向該像側；該第二透鏡包括一凹面朝向該物側；該第三透鏡包括一凸面朝向該像側；該第四透鏡為雙凸透鏡，包括一凸面朝向該物側以及另一凸面朝向該像側；該第五透鏡包括一凸面朝向該物側；該第六透鏡包括一凹面朝向該像側；以及該第七透鏡更包括一凸面朝向該像側。The imaging lens according to item 1 or item 2 of the patent application scope, wherein: the first lens further includes a concave surface facing the image side; the second lens includes a concave surface facing the object side; and the third lens includes a The convex surface faces the image side; the fourth lens is a biconvex lens including a convex surface toward the object side and another convex surface toward the image side; the fifth lens includes a convex surface toward the object side; the sixth lens includes a concave surface The image side; and the seventh lens further includes a convex surface facing the image side.

如申請專利範圍第4項所述之成像鏡頭，其中：該第二透鏡更包括一凹面朝向該像側；該第三透鏡更包括一凸面朝向該物側；該第五透鏡更包括一凸面朝向該像側；以及該第六透鏡更包括一凹面朝向該物側。The imaging lens according to item 4 of the scope of patent application, wherein: the second lens further includes a concave surface toward the image side; the third lens further includes a convex surface toward the object side; the fifth lens further includes a convex surface The image side; and the sixth lens further includes a concave surface facing the object side.

如申請專利範圍第4項所述之成像鏡頭，其中：該第二透鏡更包括一凸面朝向該像側；該第三透鏡更包括一凹面朝向該物側；該第五透鏡更包括一凹面朝向該像側；以及該第六透鏡更包括一凸面朝向該物側。The imaging lens according to item 4 of the scope of patent application, wherein: the second lens further includes a convex surface facing the image side; the third lens further includes a concave surface toward the object side; the fifth lens further includes a concave surface The image side; and the sixth lens further includes a convex surface facing the object side.

如申請專利範圍第1項或第2項所述之成像鏡頭，其中該成像鏡頭滿足以下條件：2.2<|f₁/f|<4.2；其中，f₁為該第一透鏡之一有效焦距，f為該成像鏡頭之一有效焦距。The imaging lens according to item 1 or 2 of the scope of patent application, wherein the imaging lens satisfies the following conditions: 2.2 <| f ₁ /f|<4.2; wherein f _{1 is} an effective focal length of the first lens, f is one of the effective focal lengths of the imaging lens.

如申請專利範圍第1項或第2項所述之成像鏡頭，其中該成像鏡頭滿足以下條件：0.5<|f₄/f|<2.6；其中，f₄為該第四透鏡之一有效焦距，f為該成像鏡頭之一有效焦距。The imaging lens according to item 1 or item 2 of the patent application scope, wherein the imaging lens satisfies the following conditions: 0.5 <| f ₄ /f|<2.6; wherein f _{4 is} an effective focal length of the fourth lens, f is one of the effective focal lengths of the imaging lens.

如申請專利範圍第1項或第2項所述之成像鏡頭，其中該成像鏡頭滿足以下條件：0.9<|f₇/f|<3.1；其中，f₇為該第七透鏡之一有效焦距，f為該成像鏡頭之一有效焦距。The imaging lens according to item 1 or 2 of the scope of patent application, wherein the imaging lens satisfies the following conditions: 0.9 <| f ₇ /f|<3.1; wherein f _{7 is} an effective focal length of the seventh lens, f is one of the effective focal lengths of the imaging lens.

如申請專利範圍第1項或第2項所述之成像鏡頭，其中該成像鏡頭滿足以下條件：0.1<BFL/TTL<0.4；0.3<f/TTL<0.4；其中，BFL為該第七透鏡之一像側面至一成像面於該光軸上之一間距，TTL為該第一透鏡之一物側面至該成像面於該光軸上之一間距，f為該成像鏡頭之一有效焦距。The imaging lens according to item 1 or item 2 of the patent application scope, wherein the imaging lens satisfies the following conditions: 0.1 <BFL / TTL <0.4; 0.3 <f / TTL <0.4; where BFL is the seventh lens A distance from an image side to an imaging plane on the optical axis, TTL is a distance from an object side of the first lens to the imaging plane on the optical axis, and f is an effective focal length of the imaging lens.