TWI733191B

TWI733191B - Lens assembly

Info

Publication number: TWI733191B
Application number: TW108132997A
Authority: TW
Inventors: 陳柏瑜
Original assignee: 大陸商信泰光學（深圳）有限公司; 亞洲光學股份有限公司
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2021-07-11
Also published as: TW202111378A

Abstract

A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with refractive power and includes a convex surface facing an object side. The second lens is with positive refractive power. The third lens is with positive refractive power. The fourth lens is with refractive power. The fifth lens is with refractive power. The sixth lens is with 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, and the sixth lens are arranged in order from the object side to an image side along an optical axis. The lens assembly satisfies the following condition: 0.2 < |f₅/f| < 1.5; wherein f₅ is an effective focal length of the fifth lens and f is an effective focal length of the lens assembly.

Description

成像鏡頭(三十九) Imaging lens (39)

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，除了不斷朝向大光圈發展外，隨著不同的應用需求，還需具備高解析度及抗環境溫度變化的特性，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，才能同時滿足大光圈、高解析度及抗環境溫度變化的需求。 The development trend of today's imaging lenses, in addition to the continuous development towards large apertures, with different application requirements, they also need to have high resolution and resistance to environmental temperature changes. Conventional imaging lenses can no longer meet today's needs. There is another imaging lens with a new architecture that can simultaneously meet the needs of 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 purpose of the present invention is to provide an imaging lens with a smaller aperture value, higher resolution, resistance to environmental temperature changes, but still having good optical performance.

本發明提供一種成像鏡頭，包括：一第一透鏡、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡及一第六透鏡。第一透鏡具有屈光力且包括一凸面朝向一物側。第二透鏡具有正屈光力。第三透鏡具有正屈光力。第四透鏡具有屈光力。第五透鏡具有屈光力。第六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、第五透鏡及第六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：0.2<|f₅/f|<1.5；其中，f₅為第五透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The present invention provides an imaging lens including: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has refractive power and includes a convex surface facing an object side. The second lens has positive refractive power. The third lens has positive refractive power. The fourth lens has refractive power. The fifth lens has refractive power. The sixth 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 and the sixth lens are arranged in order from the object side to the image side along an optical axis. The imaging lens satisfies the following conditions: 0.2<|f ₅ /f|<1.5; where f ₅ is an effective focal length of the fifth 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、一第二透鏡、一第三透鏡、一第四透鏡、一第五透鏡及一第六透鏡。第一透鏡具有屈光力且包括一凸面朝向一物側。第二透鏡具有正屈光力。第三透鏡具有正屈光力。第四透鏡具有屈光力。第五透鏡具有屈光力。第六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、第五透鏡及第六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：4.5mm<f+f₄<5.7mm；其中，f₄為該第四透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The present invention provides another imaging lens, including: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has refractive power and includes a convex surface facing an object side. The second lens has positive refractive power. The third lens has positive refractive power. The fourth lens has refractive power. The fifth lens has refractive power. The sixth 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 and the sixth lens are arranged in order from the object side to the image side along an optical axis. The imaging lens satisfies the following conditions: 4.5mm<f+f ₄ <5.7mm; where f _{4 is} an effective focal length of the fourth lens, and f is an effective focal length of the imaging lens.

其中第一透鏡具有負屈光力且可更包括一凹面朝向像側，第二透鏡包括一凸面朝向物側及另一凸面朝向像側，第三透鏡包括一凸面朝向物側及一凹面朝向像側，第四透鏡具有負屈光力且包括一凹面朝向物側及另一凹面朝向像側，第五透鏡具有正屈光力且包括一凸面朝向物側及另一凸面朝向像側，第六透鏡可更包括一凸面朝向像側。 The first lens has negative refractive power and may further include a concave surface facing the image side. The second lens includes a convex surface facing the object side and another convex surface facing the image side. The third lens includes a convex surface facing the object side and a concave surface facing the image side. The fourth lens has negative refractive power and includes a concave surface facing the object side and another concave surface facing the image side. The fifth lens has positive refractive power and includes a convex surface facing the object side and another convex surface facing the image side. The sixth lens may further include a convex surface Towards the image side.

其中第一透鏡具有負屈光力且可更包括一凹面朝向像側，第二透鏡包括一凸面朝向物側及另一凸面朝向像側，第三透鏡包括一凸面朝向物側及一凹面朝向像側，第四透鏡具有負屈光力且包括一凹面朝向物側及另一凹面朝向像側，第五透鏡具有正屈光力且包括一凸面朝向物側及另一凸面朝向像側，第六透鏡可更包括一平面朝向像側。 The first lens has negative refractive power and may further include a concave surface facing the image side. The second lens includes a convex surface facing the object side and another convex surface facing the image side. The third lens includes a convex surface facing the object side and a concave surface facing the image side. The fourth lens has negative refractive power and includes a concave surface facing the object side and another concave surface facing the image side. The fifth lens has positive refractive power and includes a convex surface facing the object side and another convex surface facing the image side. The sixth lens may further include a flat surface. Towards the image side.

其中第四透鏡及第五透鏡膠合。 The fourth lens and the fifth lens are cemented together.

其中成像鏡頭滿足以下條件：0.8<|f₁/f|<2.9；0.5<|f₂/f|<2.6；其中，f₁為第一透鏡之一有效焦距，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 satisfies the following conditions: 0.8<|f ₁ /f|<2.9 _{; 0.5<|f 2} /f|<2.6; where f ₁ is one of the effective focal lengths of the first lens, and f ₂ is one of the second lenses Effective focal length, f is one of the effective focal lengths of the imaging lens.

其中成像鏡頭滿足以下條件：0.2<|f₄/f|<1.5；0.3<|f₆/f|<2.4；其中，f₄為第四透鏡之一有效焦距，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 imaging lens satisfies the following conditions: 0.2<|f ₄ /f|<1.5 _{; 0.3<|f 6} /f|<2.4; among them, f ₄ is one of the effective focal lengths of the fourth lens, and f ₆ is one of the sixth lenses Effective focal length, f is one of the effective focal lengths of the imaging lens.

其中成像鏡頭滿足以下條件：0.1<|BFL/TTL|<0.6；其中，BFL為第六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。 The imaging lens satisfies the following conditions: 0.1<|BFL/TTL|<0.6; among them, BFL is the distance from the image side of the sixth lens to the image surface on the optical axis, and TTL is the distance from the object side of the first lens to the A distance between the imaging surface and the optical axis.

其中成像鏡頭滿足以下條件：-10mm<f+f₁<-7mm；24mm<f+f₂<25mm；其中，f₁為第一透鏡之一有效焦距，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 satisfies the following conditions: -10mm<f+f ₁ <-7mm;24mm<f+f ₂ <25mm; where f ₁ is an effective focal length of the first lens and f ₂ is an effective focal length of the second lens , F is one of the effective focal lengths of the imaging lens.

其中成像鏡頭滿足以下條件：103.7mm<f+f₃<199.8mm；4.5mm<f+f₄<5.7mm；其中，f₃為第三透鏡之一有效焦距，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: 103.7mm<f+f ₃ <199.8mm;4.5mm<f+f ₄ <5.7mm; among them, f ₃ is one of the effective focal lengths of the third lens, and f ₄ is one of the fourth lenses Effective focal length, f is one of the effective focal lengths of the imaging lens.

其中成像鏡頭滿足以下條件：14.5mm<f+f₅<15mm；21.2mm<f+f₆<23.6mm；其中，f₅為第五透鏡之一有效焦距，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 imaging lens meets the following conditions: 14.5mm<f+f ₅ <15mm;21.2mm<f+f ₆ <23.6mm; among them, f ₅ is one of the effective focal lengths of the fifth lens, and f ₆ is one of the effective focal lengths of the sixth lens Focal length, f is one of the effective focal lengths 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 objectives, features, and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below in conjunction with the accompanying drawings.

1、2、3‧‧‧成像鏡頭 1, 2, 3‧‧‧imaging lens

L11、L21、L31‧‧‧第一透鏡 L11, L21, L31‧‧‧First lens

L12、L22、L32‧‧‧第二透鏡 L12, L22, L32‧‧‧Second lens

L13、L23、L33‧‧‧第三透鏡 L13, L23, L33‧‧‧third lens

L14、L24、L34‧‧‧第四透鏡 L14, L24, L34‧‧‧Fourth lens

L15、L25、L35‧‧‧第五透鏡 L15, L25, L35‧‧‧Fifth lens

L16、L26、L36‧‧‧第六透鏡 L16, L26, L36‧‧‧Sixth lens

ST1、ST2、ST3‧‧‧光圈 ST1, ST2, ST3‧‧‧Aperture

OA1、OA2、OA3‧‧‧光軸 OA1, OA2, OA3‧‧‧Optical axis

OF1、OF2、OF3‧‧‧濾光片 OF1, OF2, OF3‧‧‧Filter

CG1、CG3‧‧‧保護玻璃 CG1, CG3‧‧‧protective glass

IMA1、IMA2、IMA3‧‧‧成像面 IMA1, IMA2, IMA3‧‧‧imaging surface

S11、S21、S31‧‧‧第一透鏡物側面 S11, S21, S31‧‧‧Object side of the first lens

S12、S22、S32‧‧‧第一透鏡像側面 S12, S22, S32‧‧‧The side of the first lens image

S13、S23、S33‧‧‧第二透鏡物側面 S13, S23, S33‧‧‧Object side of the second lens

S14、S24、S34‧‧‧第二透鏡像側面 S14, S24, S34‧‧‧Second lens image side

S15、S25、S35‧‧‧第三透鏡物側面 S15, S25, S35‧‧‧Object side of the third lens

S16、S26、S36‧‧‧第三透鏡像側面 S16, S26, S36‧‧‧Third lens image side

S17、S27、S37‧‧‧光圈面 S17, S27, S37‧‧‧Aperture surface

S18、S28、S38‧‧‧第四透鏡物側面 S18, S28, S38‧‧‧Object side of the fourth lens

S19、S29、S39‧‧‧第四透鏡像側面(第五透鏡物側面) S19, S29, S39‧‧‧Image side of the fourth lens (object side of the fifth lens)

S110、S210、S310‧‧‧第五透鏡像側面 S110, S210, S310‧‧‧Fifth lens image side

S111、S211、S311‧‧‧第六透鏡物側面 S111, S211, S311‧‧‧Sixth lens object side

S112、S212、S312‧‧‧第六透鏡像側面 S112, S212, S312‧‧‧Sixth lens image side

S113、S213、S313‧‧‧濾光片物側面 S113, S213, S313‧‧‧The side of the filter object

S114、S214、S314‧‧‧濾光片像側面 S114, S214, S314‧‧‧Filter image side

S115、S315‧‧‧保護玻璃物側面 S115, S315‧‧‧Protect the side of the glass object

S116、S316‧‧‧保護玻璃像側面 S116, S316‧‧‧Protect the side of the glass image

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 the lens configuration of the first embodiment of the 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。 Figure 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。 Figure 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。 The 2D diagram is a diagram of the lateral chromatic aberration (Lateral Color) 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。 Figure 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。 Figure 2F is a diagram of Modulation Transfer Function (Modulation Transfer Function) 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。 Figure 2G is a Through Focus Modulation Transfer Function diagram 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 the lens configuration of the second embodiment of the 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圖。 Fig. 4A is a longitudinal aberration diagram of the second embodiment of the 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圖。 Figure 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圖。 Fig. 4D is a lateral chromatic 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圖。 Fig. 4E is a relative contrast 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圖。 Figure 4F is a diagram of the modulation transfer function of the second embodiment of the 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圖。 Fig. 4G is a diagram of the defocus modulation transfer function of the second embodiment of the imaging lens according to the present invention.

第5圖係依據本發明之成像鏡頭之第三實施例的透鏡配置示意圖。 FIG. 5 is a schematic diagram of the lens configuration of the third embodiment of the imaging lens according to the present invention.

第6A圖係依據本發明之成像鏡頭之第三實施例的縱向像差圖。 Fig. 6A is a longitudinal aberration diagram of the third embodiment of the imaging lens according to the present invention.

第6B圖係依據本發明之成像鏡頭之第三實施例的場曲圖。 Fig. 6B is a field curvature diagram of the third embodiment of the imaging lens according to the present invention.

第6C圖係依據本發明之成像鏡頭之第三實施例的畸變圖。 Fig. 6C is a distortion diagram of the third embodiment of the imaging lens according to the present invention.

第6D圖係依據本發明之成像鏡頭之第三實施例的橫向色差圖。 Fig. 6D is a lateral chromatic aberration diagram of the third embodiment of the imaging lens according to the present invention.

第6E圖係依據本發明之成像鏡頭之第三實施例的相對照度圖。 Fig. 6E is a relative contrast diagram of the third embodiment of the imaging lens according to the present invention.

第6F圖係依據本發明之成像鏡頭之第三實施例的調變轉換函數圖。 Figure 6F is a diagram of the modulation transfer function of the third embodiment of the imaging lens according to the present invention.

第6G圖係依據本發明之成像鏡頭之第三實施例的離焦調變轉換函數圖。 Figure 6G is a diagram of the defocus modulation transfer function of the third embodiment of the 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；一第二透鏡具有正屈光力；一第三透鏡具有正屈光力；一第四透鏡具有屈光力；一第五透鏡具有屈光力；及一第六透鏡具有正屈光力，此第六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、第五透鏡及第六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：0.2<|f₅/f|<1.5；其中，f₅為第五透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The present invention provides an imaging lens comprising: a first lens having refractive power, the first lens including a convex surface facing an object side; a second lens having positive refractive power; a third lens having positive refractive power; and a fourth lens having refractive power ; A fifth lens has refractive power; and a sixth lens has positive refractive power, the sixth 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 and the first lens The six lenses are arranged in order from the object side to the image side along an optical axis; the imaging lens satisfies the following conditions: 0.2<|f ₅ /f|<1.5; where f ₅ is the effective focal length of the fifth lens, f One of the effective focal lengths 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；一第二透鏡具有正屈光力；一第三透鏡具有正屈光力；一第四透鏡具有屈光力；一第五透鏡具有屈光力；及一第六透鏡具有正屈光力，此第六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、第五透鏡及第六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：4.5mm<f+f₄<5.7mm；其中，f₄為該第四透鏡之一有效焦距，f為成像鏡頭之一有效焦距。 The present invention provides another imaging lens, including: a first lens with refractive power, the first lens including a convex surface facing an object side; a second lens with positive refractive power; a third lens with positive refractive power; and a fourth lens with Refractive power; a fifth lens with refractive power; and a sixth lens with positive refractive power, the sixth 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 and The sixth lens is arranged in order from the object side to the image side along an optical axis; the imaging lens satisfies the following conditions: 4.5mm<f+f ₄ <5.7mm; where f _{4 is} one of the effective focal lengths of the fourth lens , F is one of the effective focal lengths of the imaging lens.

請參閱底下表一、表三及表五，其中表一、表三及表五分別為依據本發明之成像鏡頭之第一實施例至第三實施例的各透鏡之相關參數表。 Please refer to Table 1, Table 3, and Table 5 below. Table 1, Table 3, and Table 5 are related parameter tables of each lens of the first embodiment to the third embodiment of the imaging lens according to the present invention.

第1、3、5圖分別為本發明之成像鏡頭之第一、二、三實施例的透鏡配置示意圖，其中第一透鏡L11、L21、L31為彎月型透鏡具有負屈光力，由玻璃材質製成，其物側面S11、S21、S31為凸面，像側面S12、S22、S32為凹面，物側面S11、S21、S31與像側面S12、S22、S32皆為球面表面。 Figures 1, 3, and 5 are schematic diagrams of the lens configuration of the first, second, and third embodiments of the imaging lens of the present invention. The first lenses L11, L21, and L31 are meniscus lenses with negative refractive power and are made of glass. The object side surfaces S11, S21, S31 are convex surfaces, the image side surfaces S12, S22, S32 are concave surfaces, and the object side surfaces S11, S21, S31 and the image side surfaces S12, S22, S32 are spherical surfaces.

第二透鏡L12、L22、L32為雙凸透鏡具有正屈光力，由玻璃材質製成，其物側面S13、S23、S33為凸面，像側面S14、S24、S34為凸面，物側面S13、S23、S33與像側面S14、S24、S34皆為球面表面。 The second lenses L12, L22, and L32 are double convex lenses with positive refractive power and are made of glass. The object side surfaces S13, S23, S33 are convex surfaces, and the image side surfaces S14, S24, S34 are convex surfaces. The object side surfaces S13, S23, S33 and The image sides S14, S24, and S34 are all spherical surfaces.

第三透鏡L13、L23、L33為彎月型透鏡具有正屈光力，由玻璃材質製成，其物側面S15、S25、S35為凸面，像側面S16、S26、S36為凹面，物側面S15、S25、S35與像側面S16、S26、S36皆為球面表面。 The third lenses L13, L23, and L33 are meniscus lenses with positive refractive power and are made of glass. The object side surfaces S15, S25, and S35 are convex surfaces, the image side surfaces S16, S26, and S36 are concave surfaces, and the object side surfaces S15, S25, S35 and the image side surface S16, S26, S36 are all spherical surfaces.

第四透鏡L14、L24、L34為雙凹透鏡具有負屈光力，由玻璃材質製成，其物側面S18、S28、S38為凹面，像側面S19、S29、S39為凹面，物側面S18、S28、S38與像側面S19、S29、S39皆為球面表面。 The fourth lens L14, L24, and L34 are biconcave lenses with negative refractive power and are made of glass. The object side surfaces S18, S28, S38 are concave surfaces, the image side surfaces S19, S29, and S39 are concave surfaces, and the object side surfaces S18, S28, S38 and The image sides S19, S29, and S39 are all spherical surfaces.

第五透鏡L15、L25、L35為雙凸透鏡具有正屈光力，由玻璃材質製成，其物側面S19、S29、S39為凸面，像側面S110、S210、S310為凸面，物側面S19、S29、S39與像側面S110、S210、S310皆為球面表面。 The fifth lens L15, L25, L35 is a double convex lens with positive refractive power, made of glass material, its object side surface S19, S29, S39 is convex surface, the image side surface S110, S210, S310 is convex surface, the object side surface S19, S29, S39 and The image sides S110, S210, and S310 are all spherical surfaces.

第六透鏡L16、L26、L36具有正屈光力，由玻璃材質製成，其物側面S111、S211、S311為凸面，物側面S111、S211、S311為球面表面。 The sixth lens L16, L26, L36 has positive refractive power and is made of glass material, The object side surfaces S111, S211, S311 are convex surfaces, and the object side surfaces S111, S211, S311 are spherical surfaces.

第四透鏡L14、L24、L34分別與第五透鏡L15、L25、L35膠合。 The fourth lenses L14, L24, and L34 are cemented with the fifth lenses L15, L25, and L35, respectively.

另外，成像鏡頭1、2、3至少滿足底下其中一條件： In addition, the imaging lenses 1, 2, and 3 meet at least one of the following conditions:

0.2<|f₅/f|<1.5 (1) 0.2<|f ₅ /f|<1.5 (1)

0.8<|f₁/f|<2.9 (2) 0.8<|f ₁ /f|<2.9 (2)

0.5<|f₂/f|<2.6 (3) 0.5<|f ₂ /f|<2.6 (3)

0.2<|f₄/f|<1.5 (4) 0.2<|f ₄ /f|<1.5 (4)

0.3<|f₆/f|<2.4 (5) 0.3<|f ₆ /f|<2.4 (5)

0.1<|BFL/TTL|<0.6 (6) 0.1<|BFL/TTL|<0.6 (6)

-10mm<f+f₁<-7mm (7) -10mm<f+f ₁ <-7mm (7)

24mm<f+f₂<25mm (8) 24mm<f+f ₂ <25mm (8)

103.7mm<f+f₃<199.8mm (9) 103.7mm<f+f ₃ <199.8mm (9)

4.5mm<f+f₄<5.7mm (10) 4.5mm<f+f ₄ <5.7mm (10)

14.5mm<f+f₅<15mm (11) 14.5mm<f+f ₅ <15mm (11)

21.2mm<f+f₆<23.6mm (12) 21.2mm<f+f ₆ <23.6mm (12)

其中，f₁為第一實施例至第三實施例中，第一透鏡L11、L21、L31之一有效焦距，f₂為第一實施例至第三實施例中，第二透鏡L12、L22、L32之一有效焦距，f₃為第一實施例至第三實施例中，第三透鏡L13、L23、L33之一有效焦距，f₄為第一實施例至第三實施例中，第四透鏡L14、L24、L34之一有效焦距，f₅為第一實施例至第三實施例中，第五透鏡L15、L25、L35之一有效焦距，f₆為第一實施例至第三實施例中，第六透鏡L16、L26、 L36之一有效焦距，f為第一實施例至第三實施例中，成像鏡頭1、2、3之一有效焦距，BFL為第一實施例至第三實施例中，第六透鏡L16、L26、L36之像側面S112、S212、S312分別至成像面IMA1、IMA2、IMA3於光軸OA1、OA2、OA3上之一間距，TTL為第一實施例至第三實施例中，第一透鏡L11、L21、L31之物側面S11、S21、S31分別至成像面IMA1、IMA2、IMA3於光軸OA1、OA2、OA3上之一間距。使得成像鏡頭1、2、3能有效的縮小光圈值、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、有效的修正色差。 Among them, f ₁ is the effective focal length of one of the first lenses L11, L21, L31 in the _{first embodiment to the third embodiment, and f 2} is the second lens L12, L22, and L22 in the first embodiment to the third embodiment. L32 is an effective focal length, f ₃ is an effective focal length of the third lens L13, L23, L33 in the _{first embodiment to the third embodiment, f 4} is the fourth lens in the first embodiment to the third embodiment One of the effective focal lengths of L14, L24, L34, f ₅ is the effective focal length of the fifth lens L15, L25, L35 in the _{first embodiment to the third embodiment, f 6} is the effective focal length of the first embodiment to the third embodiment , One of the effective focal lengths of the sixth lens L16, L26, L36, f is the effective focal length of one of the imaging lenses 1, 2, and 3 in the first embodiment to the third embodiment, and BFL is the first embodiment to the third embodiment Among them, the image sides S112, S212, and S312 of the sixth lenses L16, L26, and L36 are spaced from the imaging planes IMA1, IMA2, IMA3 on the optical axis OA1, OA2, OA3, respectively. In an example, the object side surfaces S11, S21, and S31 of the first lenses L11, L21, and L31 are spaced apart from the imaging planes IMA1, IMA2, IMA3 on the optical axis OA1, OA2, OA3, respectively. The imaging lens 1, 2, and 3 can effectively reduce the aperture value, effectively improve the resolution, effectively resist environmental temperature changes, effectively correct aberrations, and effectively correct chromatic 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】第一至十段落，其中：第六透鏡L16為雙凸透鏡，其像側面S112為凸面，像側面S112為球面表面；濾光片OF1其物側面S113與像側面S114皆為平面；保護玻璃CG1其物側面S115與像側面S116皆為平面；利用上述透鏡、光圈ST1及至少滿足條件(1)至條件(12)其中一條件之設計，使得成像鏡頭1能有效的縮小光圈值、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、有效的修正色差。 The first embodiment of the imaging lens of the present invention will now be described in detail. Please refer to FIG. 1, the imaging lens 1 includes a first lens L11, a second lens L12, a third lens L13, an aperture ST1, a first lens L11, a second lens L12, a third lens L13, a first lens L11, a second lens L12, a second lens L11, a third lens Four lenses L14, a fifth lens L15, a sixth lens L16, a filter OF1 and a protective glass CG1. When imaging, the light from the object side is finally imaged on an imaging surface IMA1. According to paragraphs 1 to 10 of the [implementation mode], the sixth lens L16 is a biconvex lens, the image side surface S112 is a convex surface, and the image side surface S112 is a spherical surface; the object side surface S113 and the image side surface S114 of the filter OF1 are both flat The protective glass CG1, whose object side surface S115 and image side surface S116 are both flat surfaces; using the above-mentioned lens, aperture ST1 and a design that satisfies at least one of the conditions (1) to (12), the imaging lens 1 can effectively reduce the aperture value , Effectively improve resolution, effective resistance to environmental temperature changes, effective correction of aberration, effective correction of chromatic aberration.

表一為第1圖中成像鏡頭1之各透鏡之相關參數表。 Table 1 is a table of related parameters of each lens of the imaging lens 1 in Figure 1.

表二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(12)之計算值，由表二可知，第一實施例之成像鏡頭1皆能滿足條件(1)至條件(12)之要求。 Table 2 shows the relevant parameter values of the imaging lens 1 of the first embodiment and the calculated values of the corresponding conditions (1) to (12). From Table 2, it can be seen that the imaging lens 1 of the first embodiment can all satisfy the condition (1). ) To the requirements of condition (12).

另外，第一實施例之成像鏡頭1的光學性能也可達到要求，由第2A圖可看出，第一實施例之成像鏡頭1其縱向像差介於-0.01mm至0.04mm之間。由第2B圖可看出，第一實施例之成像鏡頭1其場曲介於-0.06mm至0.04mm之間。由第2C圖可看出，第一實施例之成像鏡頭1其畸變介於 -2%至0%之間。由第2D圖可看出，第一實施例之成像鏡頭1其橫向色差介於-1μm至4.5μm之間。由第2E圖可看出，第一實施例之成像鏡頭1其相對照度介於0.76至1.0之間。由第2F圖可看出，第一實施例之成像鏡頭1其調變轉換函數值介於0.58至1.0之間。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0.0至0.9之間。 In addition, the optical performance of the imaging lens 1 of the first embodiment can also meet the requirements. It can be seen from Fig. 2A that the longitudinal aberration of the imaging lens 1 of the first embodiment is between -0.01 mm and 0.04 mm. It can be seen from FIG. 2B that the curvature of field of the imaging lens 1 of the first embodiment is between -0.06mm and 0.04mm. It can be seen from Figure 2C that the distortion of the imaging lens 1 of the first embodiment is between -2% to 0%. It can be seen from Fig. 2D that the lateral chromatic aberration of the imaging lens 1 of the first embodiment is between -1 μm and 4.5 μm. It can be seen from FIG. 2E that the relative illuminance of the imaging lens 1 of the first embodiment is between 0.76 and 1.0. It can be seen from FIG. 2F that the value of the modulation transfer function of the imaging lens 1 of the first embodiment is between 0.58 and 1.0. It can be seen from Fig. 2G that the imaging lens 1 of the first embodiment has a modulation transfer function value between 0.0 and 0.9 when the focus shift is between -0.05 mm and 0.05 mm.

顯見第一實施例之成像鏡頭1之縱向像差、場曲、畸變、橫向色差都能被有效修正，相對照度、鏡頭解析度、焦深也都能滿足要求，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, distortion, and lateral chromatic aberration of the imaging lens 1 of the first embodiment can be effectively corrected, and the relative illuminance, lens resolution, and focal depth can also meet the requirements, thereby obtaining 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及一濾光片OF2。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】第一至十段落，其中：第六透鏡L26為平凸透鏡，其像側面S212為平面；濾光片OF2其物側面S213與像側面S214皆為平面；利用上述透鏡、光圈ST2及至少滿足條件(1)至條件(12)其中一條件之設計，使得成像鏡頭2能有效的縮小光圈值、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、有效的修正色差。 Please refer to FIG. 3, which is a schematic diagram of the lens configuration of the second embodiment of the 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 sequence from an object side to an image side along an optical axis OA2. Five lenses L25, a sixth lens L26 and a filter OF2. When imaging, the light from the object side is finally imaged on an imaging surface IMA2. According to the first to tenth paragraphs of [Embodiment], wherein: the sixth lens L26 is a plano-convex lens, and the image side surface S212 is a flat surface; the object side surface S213 and the image side surface S214 of the filter OF2 are both flat surfaces; the above lens and aperture ST2 are used And a design that satisfies at least one of the conditions (1) to (12), so that the imaging lens 2 can effectively reduce the aperture value, effectively improve the resolution, effectively resist environmental temperature changes, effectively correct aberrations, and effectively Correct the chromatic aberration.

表三為第3圖中成像鏡頭2之各透鏡之相關參數表。 Table 3 is a table of related parameters of each lens of the imaging lens 2 in Figure 3.

表四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(12)之計算值，由表四可知，第二實施例之成像鏡頭2皆能滿足條件(1)至條件(12)之要求。 Table 4 shows the relevant parameter values of the imaging lens 2 of the second embodiment and the calculated values of the corresponding conditions (1) to (12). From Table 4, it can be seen that the imaging lens 2 of the second embodiment can all satisfy the condition (1). ) To the requirements of condition (12).

另外，第二實施例之成像鏡頭2的光學性能也可達到要求，由第4A圖可看出，第二實施例之成像鏡頭2其縱向像差介於-0.02mm至0.04mm之間。由第4B圖可看出，第二實施例之成像鏡頭2其場曲介於-0.04mm至0.04mm之間。由第4C圖可看出，第二實施例之成像鏡頭2其畸變介於-2.2%至0%之間。由第4D圖可看出，第二實施例之成像鏡頭2其橫向色差介於-1.5μm至5.0μm之間。由第4E圖可看出，第二實施例之成像鏡頭2其相對照度介於0.98至1.0之間。由第4F圖可看出，第二實施例之成像鏡頭2其調變轉換函數值介於0.50至1.0之間。由第4G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0.0至0.88之間。 In addition, the optical performance of the imaging lens 2 of the second embodiment can also meet the requirements. It can be seen from Fig. 4A that the longitudinal aberration of the imaging lens 2 of the second embodiment is between -0.02 mm and 0.04 mm. It can be seen from FIG. 4B that the curvature of field of the imaging lens 2 of the second embodiment is between -0.04mm and 0.04mm. It can be seen from FIG. 4C that the distortion of the imaging lens 2 of the second embodiment is between -2.2% and 0%. It can be seen from Fig. 4D that the lateral chromatic aberration of the imaging lens 2 of the second embodiment Between -1.5μm to 5.0μm. It can be seen from FIG. 4E that the relative illuminance of the imaging lens 2 of the second embodiment is between 0.98 and 1.0. 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. It can be seen from Fig. 4G that the imaging lens 2 of the second embodiment has a modulation transfer function value between 0.0 and 0.88 when the focus shift is between -0.05 mm and 0.05 mm.

顯見第二實施例之成像鏡頭2之縱向像差、場曲、畸變、橫向色差都能被有效修正，相對照度、鏡頭解析度、焦深也都能滿足要求，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, distortion, and lateral chromatic aberration of the imaging lens 2 of the second embodiment can be effectively corrected, and the relative illuminance, lens resolution, and focal depth can also meet the requirements, thereby obtaining better optical performance.

請參閱第5圖，第5圖係依據本發明之成像鏡頭之第三實施例的透鏡配置示意圖。成像鏡頭3沿著一光軸OA3從一物側至一像側依序包括一第一透鏡L31、一第二透鏡L32、一第三透鏡L33、一光圈ST3、一第四透鏡L34、一第五透鏡L35、一第六透鏡L36、一濾光片OF3及一保護玻璃CG3。成像時，來自物側之光線最後成像於一成像面IMA3上。根據【實施方式】第一至十段落，其中：第六透鏡L36為雙凸透鏡，其像側面S312為凸面，像側面S312為球面表面；濾光片OF3其物側面S313與像側面S314皆為平面；保護玻璃CG3其物側面S315與像側面S316皆為平面；利用上述透鏡、光圈ST3及至少滿足條件(1)至條件(12)其中一條件之設計，使得成像鏡頭3能有效的縮小光圈值、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、有效的修正色差。 Please refer to FIG. 5, which is a schematic diagram of the lens configuration of the third embodiment of the imaging lens according to the present invention. The imaging lens 3 includes a first lens L31, a second lens L32, a third lens L33, an aperture ST3, a fourth lens L34, and a first lens L31 in sequence from an object side to an image side along an optical axis OA3. Five lenses L35, a sixth lens L36, a filter OF3 and a protective glass CG3. When imaging, the light from the object side is finally imaged on an imaging surface IMA3. According to the first to tenth paragraphs of [Embodiment], the sixth lens L36 is a biconvex lens, the image side surface S312 is a convex surface, and the image side surface S312 is a spherical surface; the object side surface S313 and the image side surface S314 of the filter OF3 are both flat ; The protective glass CG3 whose object side S315 and image side S316 are both flat; using the above-mentioned lens, aperture ST3 and a design that meets at least one of the conditions (1) to (12), the imaging lens 3 can effectively reduce the aperture value , Effectively improve resolution, effective resistance to environmental temperature changes, effective correction of aberration, effective correction of chromatic aberration.

表五為第5圖中成像鏡頭3之各透鏡之相關參數表。 Table 5 is a table of related parameters of each lens of the imaging lens 3 in Figure 5.

表六為第三實施例之成像鏡頭3之相關參數值及其對應條件(1)至條件(12)之計算值，由表六可知，第三實施例之成像鏡頭3皆能滿足條件(1)至條件(12)之要求。 Table 6 shows the relevant parameter values of the imaging lens 3 of the third embodiment and the calculated values of the corresponding conditions (1) to (12). From Table 6, it can be seen that the imaging lens 3 of the third embodiment can all satisfy the condition (1). ) To the requirements of condition (12).

另外，第三實施例之成像鏡頭3的光學性能也可達到要求，由第6A圖可看出，第三實施例之成像鏡頭3其縱向像差介於-0.01mm至0.06mm之間。由第6B圖可看出，第三實施例之成像鏡頭3其場曲介於-0.02mm至0.04mm之間。由第6C圖可看出，第三實施例之成像鏡頭3其畸變介於 -3.5%至0%之間。由第6D圖可看出，第三實施例之成像鏡頭3其橫向色差介於-1.0μm至4.5μm之間。由第6E圖可看出，第三實施例之成像鏡頭3其相對照度介於0.72至1.0之間。由第6F圖可看出，第三實施例之成像鏡頭3其調變轉換函數值介於0.53至1.0之間。由第6G圖可看出，第三實施例之成像鏡頭3，當焦點偏移介於-0.05mm至0.05mm之間其調變轉換函數值介於0.0至0.86之間。 In addition, the optical performance of the imaging lens 3 of the third embodiment can also meet the requirements. It can be seen from Figure 6A that the imaging lens 3 of the third embodiment has a longitudinal aberration between -0.01 mm and 0.06 mm. It can be seen from FIG. 6B that the field curvature of the imaging lens 3 of the third embodiment is between -0.02 mm and 0.04 mm. It can be seen from Fig. 6C that the distortion of the imaging lens 3 of the third embodiment is between -Between 3.5% and 0%. It can be seen from FIG. 6D that the lateral chromatic aberration of the imaging lens 3 of the third embodiment is between -1.0 μm and 4.5 μm. It can be seen from FIG. 6E that the relative illuminance of the imaging lens 3 of the third embodiment is between 0.72 and 1.0. It can be seen from FIG. 6F that the value of the modulation transfer function of the imaging lens 3 of the third embodiment is between 0.53 and 1.0. It can be seen from Fig. 6G that the imaging lens 3 of the third embodiment has a modulation transfer function value between 0.0 and 0.86 when the focus shift is between -0.05 mm and 0.05 mm.

顯見第三實施例之成像鏡頭3之縱向像差、場曲、畸變、橫向色差都能被有效修正，相對照度、鏡頭解析度、焦深也都能滿足要求，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, distortion, and lateral chromatic aberration of the imaging lens 3 of the third embodiment can be effectively corrected, and the relative illuminance, lens resolution, and focal depth can also meet the requirements, thereby obtaining 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 familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the scope of the attached patent application.

1‧‧‧成像鏡頭 1‧‧‧Imaging lens

L11‧‧‧第一透鏡 L11‧‧‧First lens

L12‧‧‧第二透鏡 L12‧‧‧Second lens

L13‧‧‧第三透鏡 L13‧‧‧Third lens

L14‧‧‧第四透鏡 L14‧‧‧Fourth lens

L15‧‧‧第五透鏡 L15‧‧‧Fifth lens

L16‧‧‧第六透鏡 L16‧‧‧Sixth lens

ST1‧‧‧光圈 ST1‧‧‧Aperture

OA1‧‧‧光軸 OA1‧‧‧Optical axis

OF1‧‧‧濾光片 OF1‧‧‧Filter

CG1‧‧‧保護玻璃 CG1‧‧‧Protection glass

IMA1‧‧‧成像面 IMA1‧‧‧imaging surface

S11‧‧‧第一透鏡物側面 S11‧‧‧Object side of the first lens

S12‧‧‧第一透鏡像側面 S12‧‧‧The side of the first lens image

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

S14‧‧‧第二透鏡像側面 S14‧‧‧Second lens image side

S15‧‧‧第三透鏡物側面 S15‧‧‧Third lens object side

S16‧‧‧第三透鏡像側面 S16‧‧‧Third lens image side

S17‧‧‧光圈面 S17‧‧‧Aperture surface

S18‧‧‧第四透鏡物側面 S18‧‧‧Fourth lens object side

S19‧‧‧第四透鏡像側面(第五透鏡物側面) S19‧‧‧Fourth lens image side (fifth lens object side)

S110‧‧‧第五透鏡像側面 S110‧‧‧Fifth lens image side

S111‧‧‧第六透鏡物側面 S111‧‧‧Sixth lens object side

S112‧‧‧第六透鏡像側面 S112‧‧‧Sixth lens image side

S113‧‧‧濾光片物側面 S113‧‧‧The side of the filter object

S114‧‧‧濾光片像側面 S114‧‧‧Filter image side

S115‧‧‧保護玻璃物側面 S115‧‧‧Protect the side of the glass object

S116‧‧‧保護玻璃像側面 S116‧‧‧Protect the side of the glass image

Claims

一種成像鏡頭，包括：一第一透鏡具有屈光力，該第一透鏡包括一凸面朝向一物側；一第二透鏡具有正屈光力；一第三透鏡具有正屈光力；一第四透鏡具有屈光力；一第五透鏡具有正屈光力；以及一第六透鏡具有正屈光力，該第六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、該第五透鏡以及該第六透鏡沿著一光軸從該物側至一像側依序排列；該成像鏡頭滿足以下條件：0.2<|f₅/f|<1.5；其中，f₅為該第五透鏡之一有效焦距，f為該成像鏡頭之一有效焦距。 An imaging lens comprising: a first lens with refractive power, the first lens including a convex surface facing an object side; a second lens with positive refractive power; a third lens with positive refractive power; a fourth lens with refractive power; Five lenses have positive refractive power; and a sixth lens has positive refractive power, and the sixth lens includes a convex surface facing the object side; wherein the first lens, the second lens, the third lens, the fourth lens, and the first lens The five lenses and the sixth lens are arranged in order from the object side to the image side along an optical axis; the imaging lens satisfies the following conditions: 0.2<|f ₅ /f|<1.5; where f _{5 is} the fifth An effective focal length of the lens, f is an effective focal length of the imaging lens.

如申請專利範圍第1項所述之成像鏡頭，其中該第五透鏡包括一凸面朝向該物側以及另一凸面朝向該像側。 According to the imaging lens of claim 1, wherein the fifth lens includes a convex surface facing the object side and another convex surface facing the image side.

一種成像鏡頭，包括：一第一透鏡具有屈光力，該第一透鏡包括一凸面朝向一物側；一第二透鏡具有正屈光力；一第三透鏡具有正屈光力；一第四透鏡具有屈光力；一第五透鏡具有屈光力；以及一第六透鏡具有正屈光力，該第六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、該第五透鏡以及該第六透鏡沿著一光軸從該物側至一像側依序排列；該成像鏡頭滿足以下條件：4.5mm<f+f₄<5.7mm；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。 An imaging lens includes: a first lens with refractive power, the first lens including a convex surface facing an object side; a second lens with positive refractive power; a third lens with positive refractive power; a fourth lens with refractive power; Five lenses have refractive power; and a sixth lens has positive refractive power, and the sixth lens includes a convex surface facing the object side; wherein the first lens, the second lens, the third lens, the fourth lens, and the fifth lens The lens and the sixth lens are arranged in order from the object side to the image side along an optical axis; the imaging lens satisfies the following conditions: 4.5mm<f+f ₄ <5.7mm; where f _{4 is} the fourth lens Is an effective focal length, and f is an effective focal length of the imaging lens.

如申請專利範圍第3項所述之成像鏡頭，其中該第四透鏡具有負屈光力且包括一凹面朝向該物側以及另一凹面朝向該像側。 According to the imaging lens described in item 3 of the scope of patent application, the fourth lens element has a negative refractive power and includes a concave surface facing the object side and another concave surface facing the image side.

如申請專利範圍第1項或第3項中任一請求項所述之成像鏡頭，其中：該第二透鏡包括一凸面朝向該物側以及另一凸面朝向該像側；以及該第三透鏡包括一凸面朝向該物側以及一凹面朝向該像側。 The imaging lens according to any one of claims 1 or 3 of the scope of patent application, wherein: the second lens includes a convex surface facing the object side and another convex surface facing the image side; and the third lens includes A convex surface faces the object side and a concave surface faces the image side.

如申請專利範圍第1項或第3項中任一請求項所述之成像鏡頭，其中該第一透鏡具有負屈光力且更包括一凹面朝向該像側。 The imaging lens according to any one of claims 1 or 3 in the scope of the patent application, wherein the first lens has a negative refractive power and further includes a concave surface facing the image side.

如申請專利範圍第1項或第3項中任一請求項所述之成像鏡頭，其中該第六透鏡更包括一凸面朝向該像側或一平面朝向該像側。 According to the imaging lens described in item 1 or item 3 of the scope of patent application, the sixth lens further includes a convex surface facing the image side or a flat surface facing the image side.

如申請專利範圍第1項至第4項中任一請求項所述之成像鏡頭，其中該成像鏡頭至少滿足以下其中一項條件：0.8<|f₁/f|<2.9；0.5<|f₂/f|<2.6；0.3<|f₆/f|<2.4；-10mm<f+f₁<-7mm；24mm<f+f₂<25mm；103.7mm<f+f₃<199.8mm； 21.2mm<f+f₆<23.6mm；0.1<|BFL/TTL|<0.6；其中，f₁為該第一透鏡之一有效焦距，f₂為該第二透鏡之一有效焦距，f₃為該第三透鏡之一有效焦距，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，BFL為該第六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。 Such as the imaging lens described in any one of claims 1 to 4 of the scope of patent application, wherein the imaging lens meets at least one of the following conditions: 0.8<|f ₁ /f|<2.9 _{; 0.5<|f 2} _{_{/f|<2.6;0.3<|f 6 /f|<2.4;-10mm<f+f 1 <-7mm; 24mm}} <f + f 2 <25mm; 103.7mm <f + f 3 <199.8mm; 21.2mm <f+f ₆ <23.6mm;0.1<|BFL/TTL|<0.6; where f _{1 is} an effective focal length of the first lens, f _{2 is} an effective focal length of the second lens, and f _{3 is} the first lens. One of the effective focal lengths of the three lenses, f _{6 is} one of the effective focal lengths of the sixth lens, f is one of the effective focal lengths of the imaging lens, BFL is one of the image side of the sixth lens to an imaging surface on the optical axis Pitch, TTL is a pitch from an object side of the first lens to the imaging surface on the optical axis.

如申請專利範圍第1項至第4項中任一請求項所述之成像鏡頭，其中該成像鏡頭至少滿足以下其中一項條件：0.2<|f₄/f|<1.5；14.5mm<f+f₅<15mm；其中，f₄為該第四透鏡之一有效焦距，f₅為該第五透鏡之一有效焦距，f為該成像鏡頭之一有效焦距。 Such as the imaging lens described in any one of claims 1 to 4 of the scope of patent application, wherein the imaging lens meets at least one of the following conditions: 0.2<|f ₄ /f|<1.5;14.5mm<f+ f ₅ <15mm; where f _{4 is} an effective focal length of the fourth lens, f _{5 is} an effective focal length of the fifth lens, and f is an effective focal length of the imaging lens.

如申請專利範圍第9項所述之成像鏡頭，其中該第四透鏡以及該第五透鏡膠合。 The imaging lens according to item 9 of the scope of patent application, wherein the fourth lens and the fifth lens are cemented.