TW202122861A

TW202122861A - Wide-angle lens assembly

Info

Publication number: TW202122861A
Application number: TW108145515A
Authority: TW
Inventors: 戴瑜玟
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: 2019-12-12
Filing date: 2019-12-12
Publication date: 2021-06-16
Also published as: TWI722713B

Abstract

A wide-angle lens assembly includes a front lens group and a rear lens group. The front lens group includes a first lens, a second lens, and a third lens. The rear lens group includes a fourth lens, a fifth lens, and a sixth lens. The first lens is with refractive power and includes a concave surface facing an image side. The second lens is with negative refractive power and includes a convex surface facing an object side. The third lens is with refractive power and includes convex surface facing the image side. The fourth lens is with positive refractive power. The fifth lens is with refractive power. The sixth lens is with positive refractive power. 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 wide-angle lens assembly satisfies the following condition: -8.3

f_f/f

14; wherein f is an effective focal length of the wide-angle lens assembly and f_f is an effective focal length of the front lens group.

Description

廣角鏡頭(二十六) Wide-angle lens (26)

本發明係有關於一種廣角鏡頭。 The invention relates to a wide-angle lens.

現今的廣角鏡頭之發展趨勢，除了不斷朝向大視場發展外，隨著不同的應用需求，還需具備小型化及高解析度的特性，習知的廣角鏡頭已經無法滿足現今的需求，需要有另一種新架構的廣角鏡頭，才能同時滿足大視場、小型化及高解析度的需求。 The development trend of today's wide-angle lens, in addition to the continuous development towards a large field of view, with different application needs, it also needs to have the characteristics of miniaturization and high resolution. The conventional wide-angle lens can no longer meet the needs of today, and there is a need for another The wide-angle lens of the new architecture can meet the needs of large field of view, miniaturization and high resolution at the same time.

有鑑於此，本發明之主要目的在於提供一種廣角鏡頭，其視場較大、鏡頭總長度較短、解析度較高，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 a wide-angle lens that has a larger field of view, a shorter total length of the lens, and a higher resolution, but still has good optical performance.

本發明之廣角鏡頭包括一前透鏡群及一後透鏡群。此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡。此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡。第一透鏡具有屈光力，第一透鏡包括一凹面朝向一像側。第二透鏡具有負屈光力，第二透鏡包括一凸面朝向一物側。第三透鏡具有屈光力，第三透鏡包括一凸面朝向像側。第四透鏡具有正屈光力。第五透鏡具有屈光力。第六透鏡具有正屈光力。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像側依序排列。廣角鏡頭滿足以下條件：-8.3

f_f/f

14；其中，f為廣角鏡頭之一有效焦距，f_f為前透鏡群之一有效焦距。 The wide-angle lens of the present invention includes a front lens group and a rear lens group. The previous lens group includes a first lens, a second lens, and a third lens. After that, the lens group includes a fourth lens, a fifth lens, and a sixth lens. The first lens has refractive power, and the first lens includes a concave surface facing an image side. The second lens has negative refractive power, and the second lens includes a convex surface facing an object side. The third lens has refractive power, and the third lens includes a convex surface facing the image side. The fourth lens has positive refractive power. The fifth lens has refractive power. The sixth lens has positive refractive power. 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 wide-angle lens meets the following conditions: -8.3

f _f /f

14; where f is one of the effective focal lengths of the wide-angle lens, and f _f is one of the effective focal lengths of the front lens group.

本發明之另一廣角鏡頭包括一前透鏡群及一後透鏡群。此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡。此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡。第一透鏡具有屈光力，第一透鏡包括一凹面朝向一像側。第二透鏡具有負屈光力，第二透鏡包括一凸面朝向一物側。第三透鏡具有屈光力，第三透鏡包括一凸面朝向像側。第四透鏡具有正屈光力。第五透鏡具有屈光力。第六透鏡具有正屈光力。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像側依序排列。廣角鏡頭滿足以下條件：4mm

f+f₄

5mm；其中，f為廣角鏡頭之一有效焦距，f₄為第四透鏡之一有效焦距。 Another wide-angle lens of the present invention includes a front lens group and a rear lens group. The previous lens group includes a first lens, a second lens, and a third lens. After that, the lens group includes a fourth lens, a fifth lens, and a sixth lens. The first lens has refractive power, and the first lens includes a concave surface facing an image side. The second lens has negative refractive power, and the second lens includes a convex surface facing an object side. The third lens has refractive power, and the third lens includes a convex surface facing the image side. The fourth lens has positive refractive power. The fifth lens has refractive power. The sixth lens has positive refractive power. 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 wide-angle lens meets the following conditions: 4mm

f+f ₄

5mm; where f is one of the effective focal lengths of the wide-angle lens, and f ₄ is one of the effective focal lengths of the fourth lens.

本發明之另一廣角鏡頭包括一前透鏡群及一後透鏡群。此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡。此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡。第一透鏡具有屈光力，第一透鏡包括一凹面朝向一像側。第二透鏡具有負屈光力，第二透鏡包括一凸面朝向一物側。第三透鏡具有屈光力，第三透鏡包括一凸面朝向像側。第四透鏡具有正屈光力。第五透鏡具有屈光力。第六透鏡具有正屈光力。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像側依序排列。廣角鏡頭滿足以下條件：-5.65mm

(R₃₁×R₃₂)/(R₃₁+R₃₂)

-3.8mm；其中，R₃₁為第三透鏡之一物側面之一曲率半徑，R₃₂為第三透鏡之一像側面之一曲率半徑。 Another wide-angle lens of the present invention includes a front lens group and a rear lens group. The previous lens group includes a first lens, a second lens, and a third lens. After that, the lens group includes a fourth lens, a fifth lens, and a sixth lens. The first lens has refractive power, and the first lens includes a concave surface facing an image side. The second lens has negative refractive power, and the second lens includes a convex surface facing an object side. The third lens has refractive power, and the third lens includes a convex surface facing the image side. The fourth lens has positive refractive power. The fifth lens has refractive power. The sixth lens has positive refractive power. 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 wide-angle lens meets the following conditions: -5.65mm

(R ₃₁ ×R ₃₂ )/(R ₃₁ +R ₃₂ )

-3.8mm; where R ₃₁ is a curvature radius of an object side surface of the _{third lens, and R 32} is a curvature radius of an image side surface of the third lens.

本發明之另一廣角鏡頭包括一前透鏡群及一後透鏡群。此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡。此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡。第一透鏡具有屈光力，第一透鏡包括一凹面朝向一像側。第二透鏡具有負屈光力，第二透鏡包括一凸面朝向一物側。第三透鏡具有屈光力，第三透鏡包括一凸面朝向像側。第四透鏡具有正屈光力。第五透鏡具有屈光力。第六透鏡具有正屈光力。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像側依序排列。廣角鏡頭滿足以下條件：0.5<|(CRA-MRA)/CRA|<1.02；其中，CRA為廣角鏡頭之一最大像高處之一主光線角度，MRA為廣角鏡頭之一最大像高處之一邊緣光線角度。 Another wide-angle lens of the present invention includes a front lens group and a rear lens group. The previous lens group includes a first lens, a second lens, and a third lens. After that, the lens group includes a A fourth lens, a fifth lens, and a sixth lens. The first lens has refractive power, and the first lens includes a concave surface facing an image side. The second lens has negative refractive power, and the second lens includes a convex surface facing an object side. The third lens has refractive power, and the third lens includes a convex surface facing the image side. The fourth lens has positive refractive power. The fifth lens has refractive power. The sixth lens has positive refractive power. 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 wide-angle lens meets the following conditions: 0.5<|(CRA-MRA)/CRA|<1.02; where CRA is one of the chief ray angles at one of the wide-angle lenses’ maximum image height, and MRA is one of the edge ray angles at one of the wide-angle lenses’ maximum image height .

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

其中廣角鏡頭滿足以下條件：-45度/mm

FOV/f₁

-22度/mm；105

Vd₁+Vd₄

140；其中，FOV為廣角鏡頭之一視場，f₁為第一透鏡之一有效焦距，Vd₁為第一透鏡之一阿貝係數，Vd₄為第四透鏡之一阿貝係數。 The wide-angle lens meets the following conditions: -45 degrees/mm

FOV/f ₁

-22 degrees/mm; 105

Vd ₁ +Vd ₄

140; where FOV is a field of view of a wide-angle lens, f ₁ is an effective focal length _{of the first lens, Vd 1} is an Abbe number of the first lens, and Vd ₄ is an Abbe number of a fourth lens.

其中廣角鏡頭滿足以下條件：-5.1

(f₂+f₅)/f<-3.6；其中，f為廣角鏡頭之一有效焦距，f₂為第二透鏡之一有效焦距，f₅為第五透鏡之一有效焦距。 The wide-angle lens meets the following conditions: -5.1

(f ₂ +f ₅ )/f<-3.6; where f is an effective focal length of the wide-angle lens, f ₂ is an effective focal length of the second lens, and f ₅ is an effective focal length of the fifth lens.

其中廣角鏡頭滿足以下條件：0.12

BFL/TTL

0.23； 9

TTL/T₄

19；其中，BFL為最靠近像側之一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，T₄為第四透鏡於光軸上之一厚度。 The wide-angle lens meets the following conditions: 0.12

BFL/TTL

0.23; 9

TTL/T ₄

19; where BFL is the distance from the image side of the lens closest to the image side to an imaging surface on the optical axis, TTL is the distance from the object side of the first lens to the imaging surface on the optical axis, T ₄ is a thickness of the fourth lens on the optical axis.

本發明之廣角鏡頭可更包括一第七透鏡設置於第六透鏡與像側之間，此第七透鏡具有正屈光力且包括一凹面朝向物側及一凸面朝向像側。 The wide-angle lens of the present invention may further include a seventh lens arranged between the sixth lens and the image side. The seventh lens has positive refractive power and includes a concave surface facing the object side and a convex surface facing the image side.

本發明之廣角鏡頭可更包括一第七透鏡設置於第六透鏡與像側之間，此第七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。 The wide-angle lens of the present invention may further include a seventh lens arranged between the sixth lens and the image side. The seventh lens has negative refractive power and includes a concave surface facing the object side and another concave surface facing the image side.

當廣角鏡頭滿足條件：-8.3

f_f/f

14與條件：4mm

f+f₄

5mm，可使良率提升。 When the wide-angle lens meets the conditions: -8.3

f _f /f

14 and condition: 4mm

f+f ₄

5mm, the yield can be improved.

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、4、5‧‧‧廣角鏡頭 1, 2, 3, 4, 5‧‧‧Wide-angle lens

LG1_f、LG2_f、LG3_f、LG4_f、LG5_f‧‧‧前透鏡群 LG1 _f , LG2 _f , LG3 _f , LG4 _f , LG5 _f ‧‧‧Front lens group

LG1_r、LG2_r、LG3_r、LG4_r、LG5_r‧‧‧後透鏡群 LG1 _r , LG2 _r , LG3 _r , LG4 _r , LG5 _r ‧‧‧ rear lens group

L11、L21、L31、L41、L51‧‧‧第一透鏡 L11, L21, L31, L41, L51‧‧‧First lens

L12、L22、L32、L42、L52‧‧‧第二透鏡 L12, L22, L32, L42, L52‧‧‧Second lens

L13、L23、L33、L43、L53‧‧‧第三透鏡 L13, L23, L33, L43, L53‧‧‧third lens

ST1、ST2、ST3、ST4、ST5‧‧‧光圈 ST1, ST2, ST3, ST4, ST5‧‧‧Aperture

L14、L24、L34、L44、L54‧‧‧第四透鏡 L14, L24, L34, L44, L54‧‧‧Fourth lens

L15、L25、L35、L45、L55‧‧‧第五透鏡 L15, L25, L35, L45, L55‧‧‧Fifth lens

L16、L26、L36、L46、L56‧‧‧第六透鏡 L16, L26, L36, L46, L56‧‧‧Sixth lens

L47、L57‧‧‧第七透鏡 L47、L57‧‧‧Seventh lens

OF1、OF2、OF3、OF4、OF5‧‧‧濾光片 OF1, OF2, OF3, OF4, OF5‧‧‧Filter

CG1、CG2、CG3、CG4、CG5‧‧‧保護玻璃 CG1, CG2, CG3, CG4, CG5‧‧‧Protection glass

IMA1、IMA2、IMA3、IMA4、IMA5‧‧‧成像面 IMA1, IMA2, IMA3, IMA4, IMA5‧‧‧imaging surface

OA1、OA2、OA3、OA4、OA5‧‧‧光軸 OA1, OA2, OA3, OA4, OA5‧‧‧Optical axis

S11、S21、S31、S41、S51‧‧‧第一透鏡物側面 S11, S21, S31, S41, S51‧‧‧Object side of the first lens

S12、S22、S32、S42、S52‧‧‧第一透鏡像側面 S12, S22, S32, S42, S52‧‧‧The side of the first lens image

S13、S23、S33、S43、S53‧‧‧第二透鏡物側面 S13, S23, S33, S43, S53‧‧‧Object side of the second lens

S14、S24、S34、S44、S54‧‧‧第二透鏡像側面 S14, S24, S34, S44, S54‧‧‧Second lens image side

S15、S25、S35、S45、S55‧‧‧第三透鏡物側面 S15, S25, S35, S45, S55‧‧‧Object side of the third lens

S16、S26、S36、S46、S56‧‧‧第三透鏡像側面 S16, S26, S36, S46, S56‧‧‧Third lens image side

S17、S27、S37、S47、S57‧‧‧光圈面 S17, S27, S37, S47, S57‧‧‧Aperture surface

S18、S28、S38、S48、S58‧‧‧第四透鏡物側面 S18, S28, S38, S48, S58‧‧‧Object side of the fourth lens

S19、S29、S39、S49、S59‧‧‧第四透鏡像側面 S19, S29, S39, S49, S59‧‧‧Fourth lens image side

S110、S210、S310、S410、S510‧‧‧第五透鏡物側面 S110, S210, S310, S410, S510‧‧‧Fifth lens object side

S111、S211、S311、S411、S511‧‧‧第五透鏡像側面 S111, S211, S311, S411, S511‧‧‧Fifth lens image side

S112、S212、S312、S412、S512‧‧‧第六透鏡物側面 S112, S212, S312, S412, S512‧‧‧Sixth lens object side

S113、S213、S313、S413、S513‧‧‧第六透鏡像側面 S113, S213, S313, S413, S513‧‧‧Sixth lens image side

S414、S514‧‧‧第七透鏡物側面 S414, S514‧‧‧Seventh lens object side

S415、S515‧‧‧第七透鏡像側面 S415, S515‧‧‧Seventh lens image side

S114、S214、S314、S416、S516‧‧‧濾光片物側面 S114, S214, S314, S416, S516‧‧‧The side of the filter object

S115、S215、S315、S417、S517‧‧‧濾光片像側面 S115, S215, S315, S417, S517‧‧‧Filter image side

S116、S216、S316、S418、S518‧‧‧保護玻璃物側面 S116, S216, S316, S418, S518‧‧‧Protect the side of the glass object

S117、S217、S317、S419、S519‧‧‧保護玻璃像側面 S117, S217, S317, S419, S519‧‧‧Protect the side of the glass image

第1圖係依據本發明之廣角鏡頭之第一實施例的透鏡配置與光路示意圖。 FIG. 1 is a schematic diagram of the lens arrangement and optical path of the first embodiment of the wide-angle lens according to the present invention.

第2A圖係依據本發明之廣角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 wide-angle lens according to the present invention.

第2B圖係依據本發明之廣角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 wide-angle lens according to the present invention.

第2C圖係依據本發明之廣角鏡頭之第一實施例的畸變(Distortion)圖。 Figure 2C is a distortion diagram of the first embodiment of the wide-angle lens according to the present invention.

第3圖係依據本發明之廣角鏡頭之第二實施例的透鏡配置與光路示意圖。 FIG. 3 is a schematic diagram of the lens configuration and optical path of the second embodiment of the wide-angle lens according to the present invention.

第4A圖係依據本發明之廣角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 wide-angle lens according to the present invention.

第4B圖係依據本發明之廣角鏡頭之第二實施例的場曲圖。 Figure 4B is a field curvature diagram of the second embodiment of the wide-angle lens according to the present invention.

第4C圖係依據本發明之廣角鏡頭之第二實施例的畸變圖。 Figure 4C is a distortion diagram of the second embodiment of the wide-angle lens according to the present invention.

第5圖係依據本發明之廣角鏡頭之第三實施例的透鏡配置與光路示意圖。 FIG. 5 is a schematic diagram of the lens configuration and optical path of the third embodiment of the wide-angle lens according to the present invention.

第6A圖係依據本發明之廣角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 wide-angle lens according to the present invention.

第6B圖係依據本發明之廣角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 wide-angle lens according to the present invention.

第6C圖係依據本發明之廣角鏡頭之第三實施例的畸變圖。 Fig. 6C is a distortion diagram of the third embodiment of the wide-angle lens according to the present invention.

第7圖係依據本發明之廣角鏡頭之第四實施例的透鏡配置與光路示意圖。 FIG. 7 is a schematic diagram of the lens configuration and optical path of the fourth embodiment of the wide-angle lens according to the present invention.

第8A圖係依據本發明之廣角鏡頭之第四實施例的縱向像差圖。 Fig. 8A is a longitudinal aberration diagram of the fourth embodiment of the wide-angle lens according to the present invention.

第8B圖係依據本發明之廣角鏡頭之第四實施例的場曲圖。 Fig. 8B is a field curvature diagram of the fourth embodiment of the wide-angle lens according to the present invention.

第8C圖係依據本發明之廣角鏡頭之第四實施例的畸變圖。 Figure 8C is a distortion diagram of the fourth embodiment of the wide-angle lens according to the present invention.

第9圖係依據本發明之廣角鏡頭之第五實施例的透鏡配置與光路示意圖。 FIG. 9 is a schematic diagram of the lens arrangement and optical path of the fifth embodiment of the wide-angle lens according to the present invention.

第10A圖係依據本發明之廣角鏡頭之第五實施例的縱向像差圖。 FIG. 10A is a longitudinal aberration diagram of the fifth embodiment of the wide-angle lens according to the present invention.

第10B圖係依據本發明之廣角鏡頭之第五實施例的場曲圖。 Figure 10B is a field curvature diagram of the fifth embodiment of the wide-angle lens according to the present invention.

第10C圖係依據本發明之廣角鏡頭之第五實施例的畸變圖。 Figure 10C is a distortion diagram of the fifth embodiment of the wide-angle lens according to the present invention.

本發明提供一種廣角鏡頭，包括：一前透鏡群，此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡；及一後透鏡群，此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡；第一透鏡具有屈光力，此第一透鏡包括一凹面朝向一像側；第二透鏡具有負屈光力，此第二透鏡包括一凸面朝向一物側；第三透鏡具有屈光力，此第三透鏡包括一凸面朝向像側；第四透鏡具有正屈光力；第五透鏡具有屈光力；第六透鏡具有正屈光力；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像側依序排列；廣角鏡頭滿足以下條件：-8.3

f_f/f

14；其中，f為廣角鏡頭之一有效焦距，f_f為前透鏡群之一有效焦距。 The present invention provides a wide-angle lens, including: a front lens group, the front lens group includes a first lens, a second lens, and a third lens; and a rear lens group, the rear lens group includes a fourth lens, a fifth lens Lens and a sixth lens; the first lens has refractive power, the first lens includes a concave surface facing an image side; the second lens has negative refractive power, the second lens includes a convex surface facing an object side; the third lens has refractive power, The third lens includes a convex surface facing the image side; the fourth lens has positive refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; the first lens, the second lens, the third lens, the fourth lens, and the fifth lens The sixth lens and the sixth lens are arranged in order from the object side to the image side along an optical axis; the wide-angle lens meets the following conditions: -8.3

f _f /f

本發明提供另一種廣角鏡頭，包括：一前透鏡群，此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡；及一後透鏡群，此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡；第一透鏡具有屈光力，此第一透鏡包括一凹面朝向一像側；第二透鏡具有負屈光力，此第二透鏡包括一凸面朝向一物側；第三透鏡具有屈光力，此第三透鏡包括一凸面朝向像側；第四透鏡具有正屈光力；第五透鏡具有屈光力；第六透鏡具有正屈光力；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像側依序排列；廣角鏡頭滿足以下條件：4mm

f+f₄

5mm；其中，f為廣角鏡頭之一有效焦距，f₄為第四透鏡之一有效焦距。 The present invention provides another wide-angle lens, including: a front lens group, the front lens group includes a first lens, a second lens, and a third lens; and a rear lens group, the rear lens group includes a fourth lens, a first lens Five lenses and a sixth lens; the first lens has refractive power, the first lens includes a concave surface facing an image side; the second lens has negative refractive power, the second lens includes a convex surface facing an object side; the third lens has refractive power , The third lens includes a convex surface facing the image side; the fourth lens has positive refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; 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 wide-angle lens meets the following conditions: 4mm

f+f ₄

本發明提供另一種廣角鏡頭，包括：一前透鏡群，此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡；及一後透鏡群，此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡；第一透鏡具有屈光力，此第一透鏡包括一凹面朝向一像側；第二透鏡具有負屈光力，此第二透鏡包括一凸面朝向一物側；第三透鏡具有屈光力，此第三透鏡包括一凸面朝向像側；第四透鏡具有正屈光力；第五透鏡具有屈光力；第六透鏡具有正屈光力；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像側依序排列；廣角鏡頭滿足以下條件：-5.65mm

(R₃₁×R₃₂)/(R₃₁+R₃₂)

-3.8mm；其中，R₃₁為第三透鏡之一物側面之一曲率半徑，R₃₂為第三透鏡之一像側面之一曲率半徑。 The present invention provides another wide-angle lens, including: a front lens group, the front lens group includes a first lens, a second lens, and a third lens; and a rear lens group, the rear lens group includes a fourth lens, a first lens Five lenses and a sixth lens; the first lens has refractive power, the first lens includes a concave surface facing an image side; the second lens has negative refractive power, the second lens includes a convex surface facing an object side; the third lens has refractive power , The third lens includes a convex surface facing the image side; the fourth lens has positive refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; 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 wide-angle lens meets the following conditions: -5.65mm

(R ₃₁ ×R ₃₂ )/(R ₃₁ +R ₃₂ )

本發明提供另一種廣角鏡頭，包括：一前透鏡群，此前透鏡群包括一第一透鏡、一第二透鏡及一第三透鏡；及一後透鏡群，此後透鏡群包括一第四透鏡、一第五透鏡及一第六透鏡；第一透鏡具有屈光力，此第一透鏡包括一凹面朝向一像側；第二透鏡具有負屈光力，此第二透鏡包括一凸面朝向一物側；第三透鏡具有屈光力，此第三透鏡包括一凸面朝向像側；第四透鏡具有正屈光力；第五透鏡具有屈光力；第六透鏡具有正屈光力；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像側依序排列；廣角鏡頭滿足以下條件：0.5<|(CRA-MRA)/CRA|<1.02；其中，CRA為廣角鏡頭之一最大像高處之一主光線角度，MRA為廣角鏡頭之一最大像高處之一邊緣光線角度。 The present invention provides another wide-angle lens, including: a front lens group, the front lens group includes a first lens, a second lens, and a third lens; and a rear lens group, the rear lens group includes a fourth lens, a first lens Five lenses and a sixth lens; the first lens has refractive power, the first lens includes a concave surface facing an image side; the second lens has negative refractive power, the second lens includes a convex surface facing an object side; the third lens has refractive power , The third lens includes a convex surface facing the image side; the fourth lens has positive refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; 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 wide-angle lens meets the following conditions: 0.5<|(CRA-MRA)/CRA|<1.02; where CRA is one of the largest image heights of the wide-angle lens One chief ray angle, MRA is one of the edge ray angles at one of the maximum image heights of the wide-angle lens.

請參閱底下表一、表二、表四、表五、表七、表八、表十表十一、表十三及表十四，其中表一、表四、表七、表十及表十三分別為依據本發明之廣角鏡頭之第一實施例至第五實施例的各透鏡之相關參數表，表二、表五、表八、表十一及表十四分別為表一、表四、表七、表十及表十三中非球面透鏡之非球面表面之相關參數表。 Please refer to the following table 1, table 2, table 4, table 5, table 7, table 8, table 10, table 11, table 13 and table 14, of which table 1, table 4, table 7, table 10 and table 10 Three are the relevant parameter tables of the lenses of the first embodiment to the fifth embodiment of the wide-angle lens according to the present invention. Tables 2, Table 5, Table 8, Table 11, and Table 14 are Table 1, Table 4, and Table 4 respectively. Table 7, Table 10, and Table 13 are related to the aspheric surface of the aspheric lens.

第1、3、5、7、9圖分別為本發明之廣角鏡頭之第一、二、三、四、五實施例的透鏡配置與光路示意圖，其中前透鏡群LG1_f、LG2_f、LG3_f、LG4_f、LG5_f分別包括第一透鏡L11第二透鏡L12第三透鏡L13、第一透鏡L21第二透鏡L22第三透鏡L23、第一透鏡L31第二透鏡L32第三透鏡L33、第一透鏡L41第二透鏡L42第三透鏡L43、第一透鏡L51第二透鏡L52第三透鏡L53，後透鏡群LG1_r、LG2_r、LG3_r、LG4_r、LG5_r分別包括第四透鏡L14第五透鏡L15第六透鏡L16、第四透鏡L24第五透鏡L25第六透鏡L26、第四透鏡L34第五透鏡L35第六透鏡L36、第四透鏡L44第五透鏡L45第六透鏡L46第七透鏡L47、第四透鏡L54第五透鏡L55第六透鏡L56第七透鏡L57。 Figures 1, 3, 5, 7, and 9 are schematic diagrams of lens configurations and optical paths of the first, second, third, fourth, and fifth embodiments of the wide-angle lens of the present invention, respectively. The front lens groups LG1 _f , LG2 _f , LG3 _f , LG4 _f and LG5 _f respectively include a first lens L11, a second lens L12, a third lens L13, a first lens L21, a second lens L22, a third lens L23, a first lens L31, a second lens L32, a third lens L33, and a first lens L41. The second lens L42, the third lens L43, the first lens L51, the second lens L52, the third lens L53, and the rear lens groups LG1 _r , LG2 _r , LG3 _r , LG4 _r , and LG5 _r respectively include a fourth lens L14 and a fifth lens L15. Six lens L16, fourth lens L24, fifth lens L25, sixth lens L26, fourth lens L34, fifth lens L35, sixth lens L36, fourth lens L44, fifth lens L45, sixth lens L46, seventh lens L47, and fourth lens L54 fifth lens L55 sixth lens L56 seventh lens L57.

第一透鏡L11、L21、L31、L41、L51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、S41、S51為凸面，像側面S12、S22、S32、S42、S52為凹面，物側面S11、S21、S31、S41、S51與像側面S12、S22、S32、S42、S52皆為球面表面。 The first lenses L11, L21, L31, L41, and L51 are meniscus lenses with negative refractive power and are made of glass. The object side surfaces S11, S21, S31, S41, and S51 are convex surfaces, and the image side surfaces S12, S22, S32, S42 and S52 are concave surfaces, and the object side surfaces S11, S21, S31, S41, S51 and the image side surfaces S12, S22, S32, S42, and S52 are all spherical surfaces.

第二透鏡L12、L22、L32、L42、L52為彎月型透鏡具有負屈光力，由塑膠材質製成，其物側面S13、S23、S33、S43、S53為凸面，像側面S14、S24、S34、S44、S54為凹面，物側面S13、S23、S33、S43、S53與像側面S14、S24、S34、S44、S54皆為非球面表面。 The second lenses L12, L22, L32, L42, L52 are meniscus lenses with negative refractive power and are made of plastic material. The object side surfaces S13, S23, S33, S43, and S53 are convex surfaces, and the image side surfaces S14, S24, S34, S44 and S54 are concave surfaces, and the object side surfaces S13, S23, S33, S43, S53 and the image side surfaces S14, S24, S34, S44, and S54 are all aspherical surfaces.

第三透鏡L13、L23、L33、L43、L53具有正屈光力，由塑膠材質製成，其像側面S16、S26、S36、S46、S56為凸面，物側面S15、S25、S35、S45、S55與像側面S16、S26、S36、S46、S56皆為非球面表面。 The third lens L13, L23, L33, L43, L53 has positive refractive power and is made of plastic material. Its image side surfaces S16, S26, S36, S46, S56 are convex, and the object side surfaces S15, S25, S35, S45, S55 and the image The side surfaces S16, S26, S36, S46, and S56 are all aspherical surfaces.

第四透鏡L14、L24、L34、L44、L54為雙凸透鏡具有正屈光力，由玻璃材質製成，其物側面S18、S28、S38、S48、S58為凸面，像側面S19、S29、S39、S49、S59為凸面，物側面S18、S28、S38、S48、S58與像側面S19、S29、S39、S49、S59皆為球面表面。 The fourth lens L14, L24, L34, L44, L54 is a double convex lens with positive refractive The optical power is made of glass material. The object side surface S18, S28, S38, S48, S58 is convex surface, like the side surface S19, S29, S39, S49, S59 is convex surface, the object side surface S18, S28, S38, S48, S58 and The image sides S19, S29, S39, S49, and S59 are all spherical surfaces.

第五透鏡L15、L25、L35、L45、L55為雙凹透鏡具有負屈光力，由塑膠材質製成，其物側面S110、S210、S310、S410、S510為凹面，像側面S111、S211、S311、S411、S511為凹面，物側面S110、S210、S310、S410、S510與像側面S111、S211、S311、S411、S511皆為非球面表面。 The fifth lens L15, L25, L35, L45, and L55 are biconcave lenses with negative refractive power and are made of plastic material. The object side surfaces S110, S210, S310, S410, and S510 are concave surfaces, and the image side surfaces S111, S211, S311, S411, S511 is a concave surface, and the object side surfaces S110, S210, S310, S410, S510 and the image side surfaces S111, S211, S311, S411, and S511 are all aspherical surfaces.

第六透鏡L16、L26、L36、L46、L56為雙凸透鏡具有正屈光力，由塑膠材質製成，其物側面S112、S212、S312、S412、S512為凸面，像側面S113、S213、S313、S413、S513為凸面，物側面S112、S212、S312、S412、S512與像側面S113、S213、S313、S413、S513皆為非球面表面。 The sixth lens L16, L26, L36, L46, and L56 are double convex lenses with positive refractive power and are made of plastic material. The object side surfaces S112, S212, S312, S412, and S512 are convex surfaces, and the image side surfaces S113, S213, S313, S413, S513 is a convex surface, and the object side surfaces S112, S212, S312, S412, S512 and the image side surfaces S113, S213, S313, S413, and S513 are all aspherical surfaces.

另外，廣角鏡頭1、2、3、4、5至少滿足底下其中一條件： In addition, wide-angle lenses 1, 2, 3, 4, and 5 meet at least one of the following conditions:

0.5<|(CRA-MRA)/CRA|<1.02 (4) 0.5<|(CRA-MRA)/CRA|<1.02 (4)

其中，f為第一實施例至第五實施例中，廣角鏡頭1、2、3、 4、5之一有效焦距，f₁為第一實施例至第五實施例中，第一透鏡L11、L21、L31、L41、L51之一有效焦距，f₂為第一實施例至第五實施例中，第二透鏡L12、L22、L32、L42、L52之一有效焦距，f₄為第一實施例至第五實施例中，第四透鏡L14、L24、L34、L44、L54之一有效焦距，f₅為第一實施例至第五實施例中，第五透鏡L15、L25、L35、L45、L55之一有效焦距，f_f為第一實施例至第五實施例中，前透鏡群LG1_f、LG2_f、LG3_f、LG4_f、LG5_f之一有效焦距，R₃₁為第一實施例至第五實施例中，第三透鏡L13、L23、L33、L43、L53之物側面S15、S25、S35、S45、S55之一曲率半徑，R₃₂為第一實施例至第五實施例中，第三透鏡L13、L23、L33、L43、L53之像側面S16、S26、S36、S46、S56之一曲率半徑，CRA為第一實施例至第五實施例中，廣角鏡頭1、2、3、4、5之一最大像高處之一主光線角度，MRA為第一實施例至第五實施例中，廣角鏡頭1、2、3、4、5之一最大像高處之一邊緣光線角度，FOV為第一實施例至第五實施例中，廣角鏡頭1、2、3、4、5之一視場，Vd₁為第一實施例至第五實施例中，第一透鏡L11、L21、L31、L41、L51之一阿貝係數，Vd₄為第一實施例至第五實施例中，第四透鏡L14、L24、L34、L44、L54之一阿貝係數，BFL為第一實施例至第五實施例中，最靠近像側之透鏡L16、L26、L36、L47、L57之像側面S113、S213、S313、S415、S515分別至成像面IMA1、IMA2、IMA3、IMA4、IMA5於光軸OA1、OA2、OA3、OA4、OA5上之一間距，TTL為第一實施例至第五實施例中，第一透鏡L11、L21、L31、L41、L51之物側面S11、S21、S31、S41、S51分別至成像面IMA1、IMA2、IMA3、IMA4、IMA5於光軸OA1、OA2、OA3、OA4、OA5上之一間距，T₄為第一實施例至第五實施例中，第四透鏡L14、L24、L34、L44、 L54於光軸OA1、OA2、OA3、OA4、OA5上之一厚度。使得廣角鏡頭1、2、3、4、5能有效的縮短鏡頭總長度、有效的增加視場、有效的提升解析度、有效的修正像差、有效的修正色差。 Among them, f is the effective focal length of one of the wide-angle lenses 1, 2, 3, 4, and 5 in the _{first embodiment to the fifth embodiment, and f 1} is the first lens L11, L21 in the first embodiment to the fifth embodiment , L31, L41, L51, one effective focal length, f ₂ of the first embodiment to the fifth embodiment, a second lens L12, L22, L32, L42, L52, one effective focal length, f ₄ of the first embodiment to the in the fifth embodiment, the fourth lens L14, L24, L34, L44, L54, one effective focal length, f ₅ is the first embodiment to the fifth embodiment, the fifth lens L15, L25, L35, L45, L55 of _{An effective focal length, f f} is one of the effective focal lengths of the front lens groups LG1 _f , LG2 _f , LG3 _f , LG4 _f , and LG5 _f in the first embodiment to the fifth embodiment, and R ₃₁ is the first embodiment to the fifth embodiment In the embodiment, the third lens L13, L23, L33, L43, L53 has a curvature radius of one of the object sides S15, S25, S35, S45, S55, and R ₃₂ is the first to fifth embodiments, the third lens L13, L23, L33, L43, L53 are one of the curvature radius of the image side S16, S26, S36, S46, S56, CRA is the first to fifth embodiment, the wide-angle lens 1, 2, 3, 4, 5 A chief ray angle at a maximum image height. MRA is a marginal ray angle at one of the largest image heights of the wide-angle lens 1, 2, 3, 4, and 5 in the first to fifth embodiments, and FOV is the first In the embodiment to the fifth embodiment, one of the wide-angle lenses 1, 2, 3, 4, 5 has a field of view, Vd ₁ is the first lens L11, L21, L31, L41, L51 in the first embodiment to the fifth embodiment One of the Abbe coefficients, Vd ₄ is one of the Abbe coefficients of the first embodiment to the fifth embodiment, the fourth lens L14, L24, L34, L44, L54, and BFL is the first embodiment to the fifth embodiment , The image sides S113, S213, S313, S415, and S515 of the lenses L16, L26, L36, L47, and L57 closest to the image side are respectively to the imaging planes IMA1, IMA2, IMA3, IMA4, IMA5 on the optical axis OA1, OA2, OA3, The distance between OA4 and OA5, TTL is in the first embodiment to the fifth embodiment, the object sides S11, S21, S31, S41, and S51 of the first lens L11, L21, L31, L41, L51 are respectively to the imaging surface IMA1 , IMA2, IMA3, IMA4, IMA5 to the optical axis OA1, OA2, OA3, OA4, OA5 one of pitch, T ₄ of the first embodiment to the fifth embodiment, the fourth lens L14, L24, L34, L44, L54 has a thickness on the optical axis OA1, OA2, OA3, OA4, OA5. The wide-angle lens 1, 2, 3, 4, 5 can effectively shorten the total length of the lens, effectively increase the field of view, effectively improve the resolution, effectively correct aberrations, and effectively correct chromatic aberrations.

滿足條件(1)：-8.3

f_f/f

14，可提升廣角鏡頭之相對照度。 Meet the condition (1): -8.3

f _f /f

14. It can improve the relative contrast of the wide-angle lens.

滿足條件(2)：4mm

f+f₄

5mm，可控制第四透鏡屈光力使第四透鏡屈光力不致於過大，有利於第四透鏡之加工製造。 Meet the condition (2): 4mm

f+f ₄

5mm, the refractive power of the fourth lens can be controlled so that the refractive power of the fourth lens is not too large, which is beneficial to the processing and manufacturing of the fourth lens.

滿足條件(3)：-5.65mm

(R₃₁×R₃₂)/(R₃₁+R₃₂)

-3.8mm，可降低第三透鏡之製造敏感度，以提升廣角鏡頭之製造良率。 Meet the condition (3): -5.65mm

(R ₃₁ ×R ₃₂ )/(R ₃₁ +R ₃₂ )

-3.8mm, which can reduce the manufacturing sensitivity of the third lens to improve the manufacturing yield of the wide-angle lens.

滿足條件(4)：0.5<|(CRA-MRA)/CRA|<1.02，可調整最大像高處的邊緣光線角度，以提升廣角鏡頭之照度與影像品質。 Satisfy the condition (4): 0.5<|(CRA-MRA)/CRA|<1.02, the edge light angle at the maximum image height can be adjusted to improve the illuminance and image quality of the wide-angle lens.

滿足條件(5)：-45度/mm

FOV/f₁

-22度/mm，可控制第一透鏡屈光力使第一透鏡屈光力不致於過大，有利於第一透鏡之加工製造。 Meet the condition (5): -45 degrees/mm

FOV/f ₁

-22 degrees/mm, the refractive power of the first lens can be controlled so that the refractive power of the first lens is not too large, which is beneficial to the processing and manufacturing of the first lens.

滿足條件(6)：105

Vd₁+Vd₄

140，可降低廣角鏡頭之色差提升影像品質。 Meet the condition (6): 105

Vd ₁ +Vd ₄

140, can reduce the chromatic aberration of the wide-angle lens and improve the image quality.

滿足條件(7)：-5.1

(f₂+f₅)/f<-3.6，可降低廣角鏡頭之製造敏感度，以提升影像品質。 Meet condition (7): -5.1

(f ₂ +f ₅ )/f<-3.6, which can reduce the manufacturing sensitivity of wide-angle lenses to improve image quality.

滿足條件(8)：0.12

BFL/TTL

0.23，可增長後焦距，有利於廣角鏡頭之組裝製造。 Meet the condition (8): 0.12

BFL/TTL

0.23, can increase the back focal length, which is conducive to the assembly and manufacturing of wide-angle lenses.

滿足條件(9)：9

TTL/T₄

19，可有效降低溫度變化對影像品質的影響，有利於廣角鏡頭之製造。 Meet the condition (9): 9

TTL/T ₄

19. It can effectively reduce the impact of temperature changes on image quality, which is conducive to the manufacture of wide-angle lenses.

現詳細說明本發明之廣角鏡頭之第一實施例。請參閱第1圖，廣角鏡頭1沿著一光軸OA1從一物側至一像側依序包括一前透鏡群 LG1_f、一光圈ST1、一後透鏡群LG1_r、一濾光片OF1及一保護玻璃CG1。前透鏡群LG1_f包括一第一透鏡L11、一第二透鏡L12及一第三透鏡L13。後透鏡群LG1_r包括一第四透鏡L14、一第五透鏡L15及一第六透鏡L16。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： The first embodiment of the wide-angle lens of the present invention will now be described in detail. Please refer to Fig. 1, the wide-angle lens 1 includes a front lens group LG1 _f , an aperture ST1, a rear lens group LG1 _r , a filter OF1 and an image side in sequence along an optical axis OA1 from an object side to an image side. Protect glass CG1. The front lens group LG1 _f includes a first lens L11, a second lens L12, and a third lens L13. The rear lens group LG1 _r includes a fourth lens L14, a fifth lens L15, and a sixth lens L16. When imaging, the light from the object side is finally imaged on an imaging surface IMA1. According to the first to twelfth paragraphs of [Implementation Mode], in which:

第三透鏡L13為雙凸透鏡，其物側面S15為凸面； The third lens L13 is a double convex lens, and its object side surface S15 is a convex surface;

濾光片OF1其物側面S114與像側面S115皆為平面； The object side S114 and the image side S115 of the filter OF1 are both flat surfaces;

保護玻璃CG1其物側面S116與像側面S117皆為平面； The protective glass CG1 has a flat surface on the object side S116 and the image side S117;

利用上述透鏡、光圈ST1及至少滿足條件(1)至條件(9)其中一條件之設計，使得廣角鏡頭1能有效的縮短鏡頭總長度、有效的增加視場、有效的提升解析度、有效的修正像差、有效的修正色差。 Using the above-mentioned lens, aperture ST1 and a design that meets at least one of the conditions (1) to (9), the wide-angle lens 1 can effectively shorten the total length of the lens, effectively increase the field of view, effectively improve the resolution, and effectively correct Aberration, effective correction of chromatic aberration.

表一為第1圖中廣角鏡頭1之各透鏡之相關參數表。 Table 1 is a table of related parameters of each lens of the wide-angle lens 1 in Figure 1.

表一中非球面透鏡之非球面表面凹陷度z由下列公式所得到： The aspheric surface concavity z of the aspheric lens in Table 1 is obtained by the following formula:

z=ch²/{1+[1-(k+1)c²h²]^1/2}+Ah⁴+Bh⁶+Ch⁸+Dh¹⁰+Eh¹²+Fh¹⁴+Gh¹⁶ z=ch ² /{1+[1-(k+1)c ² h ² ] ^1/2 }+Ah ⁴ +Bh ⁶ +Ch ⁸ +Dh ¹⁰ +Eh ¹² +Fh ¹⁴ +Gh ¹⁶

其中： among them:

c：曲率； c: curvature;

h：透鏡表面任一點至光軸之垂直距離； h: the vertical distance from any point on the lens surface to the optical axis;

k：圓錐係數； k: conic coefficient;

A~G：非球面係數。 A~G: Aspheric coefficient.

表二為表一中非球面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 2 is a table of related parameters of the aspheric surface of the aspheric lens in Table 1, where k is the Conic Constant, and A~G are the aspheric coefficients.

表三為第一實施例之廣角鏡頭1之相關參數值及其對應條件(1)至條件(9)之計算值，由表三可知，第一實施例之廣角鏡頭1皆能滿足條件(1)至條件(9)之要求。 Table 3 shows the relevant parameter values of the wide-angle lens 1 of the first embodiment and the calculated values of the corresponding conditions (1) to (9). From Table 3, it can be seen that the wide-angle lens 1 of the first embodiment can all satisfy the conditions (1) to The requirements of condition (9).

另外，第一實施例之廣角鏡頭1的光學性能也可達到要求。 In addition, the optical performance of the wide-angle lens 1 of the first embodiment can also meet the requirements.

由第2A圖可看出，第一實施例之廣角鏡頭1其縱向像差介於-0.01mm至0.025mm之間。 It can be seen from FIG. 2A that the longitudinal aberration of the wide-angle lens 1 of the first embodiment is between -0.01 mm and 0.025 mm.

由第2B圖可看出，第一實施例之廣角鏡頭1其場曲介於-0.02mm至0.005mm之間。 It can be seen from Fig. 2B that the field curvature of the wide-angle lens 1 of the first embodiment is between -0.02mm and 0.005mm.

由第2C圖可看出，第一實施例之廣角鏡頭1其畸變介於-30%至0%之間。 It can be seen from FIG. 2C that the distortion of the wide-angle lens 1 of the first embodiment is between -30% and 0%.

顯見第一實施例之廣角鏡頭1之縱向像差、場曲、畸變都能被有效修正，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, and distortion of the wide-angle lens 1 of the first embodiment can be effectively corrected, thereby obtaining better optical performance.

請參閱第3圖，第3圖係依據本發明之廣角鏡頭之第二實施例的透鏡配置與光路示意圖。廣角鏡頭2沿著一光軸OA2從一物側至一像側依序包括一前透鏡群LG2_f、一光圈ST2、一後透鏡群LG2_r、一濾光片OF2及一保護玻璃CG2。前透鏡群LG2_f包括一第一透鏡L21、一第二透鏡L22及一第三透鏡L23。後透鏡群LG2_r包括一第四透鏡L24、一第五透鏡L25及一第六透鏡L26。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： Please refer to FIG. 3, which is a schematic diagram of the lens configuration and optical path of the second embodiment of the wide-angle lens according to the present invention. _{The wide-angle lens 2 includes a front lens group LG2 f} , an aperture ST2, a rear lens group LG2 _r , a filter OF2 and a protective glass CG2 in order from an object side to an image side along an optical axis OA2. The front lens group LG2 _f includes a first lens L21, a second lens L22, and a third lens L23. The rear lens group LG2 _r includes a fourth lens L24, a fifth lens L25, and a sixth lens L26. When imaging, the light from the object side is finally imaged on an imaging surface IMA2. According to the first to twelfth paragraphs of [Implementation Mode], in which:

第三透鏡L23為雙凸透鏡，其物側面S25為凸面； The third lens L23 is a double convex lens, and its object side surface S25 is a convex surface;

濾光片OF2其物側面S214與像側面S215皆為平面； The object side S214 and the image side S215 of the filter OF2 are both flat surfaces;

保護玻璃CG2其物側面S216與像側面S217皆為平面； The object side S216 and the image side S217 of the protective glass CG2 are both flat surfaces;

利用上述透鏡、光圈ST2及至少滿足條件(1)至條件(9)其中一條件之設計，使得廣角鏡頭2能有效的縮短鏡頭總長度、有效的增加視場、有效的提升解析度、有效的修正像差、有效的修正色差。 Using the above-mentioned lens, aperture ST2, and a design that meets at least one of the conditions (1) to (9), the wide-angle lens 2 can effectively shorten the total length of the lens, effectively increase the field of view, effectively improve the resolution, and effectively correct Aberration, effective correction of chromatic aberration.

表四為第3圖中廣角鏡頭2之各透鏡之相關參數表。 Table 4 is a table of related parameters of each lens of the wide-angle lens 2 in Figure 3.

表四中非球面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非球面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 concavity z of the aspheric lens in Table 4 is the same as the definition of the aspheric surface concavity z of the aspheric lens in Table 1 in the first embodiment, and will not be repeated here.

表五為表四中非球面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 the aspheric lens in Table 4, where k is the Conic Constant, and A~G are the aspheric coefficients.

表六為第二實施例之廣角鏡頭2之相關參數值及其對應條件(1)至條件(9)之計算值，由表六可知，第二實施例之廣角鏡頭2皆能滿足條件(1)至條件(9)之要求。 Table 6 shows the relevant parameter values of the wide-angle lens 2 of the second embodiment and the calculated values of the corresponding conditions (1) to (9). From Table 6, it can be seen that the wide-angle lens 2 of the second embodiment can all satisfy the conditions (1) to The requirements of condition (9).

另外，第二實施例之廣角鏡頭2的光學性能也可達到要求。 In addition, the optical performance of the wide-angle lens 2 of the second embodiment can also meet the requirements.

由第4A圖可看出，第二實施例之廣角鏡頭2其縱向像差介於-0.005mm至0.005mm之間。 It can be seen from FIG. 4A that the longitudinal aberration of the wide-angle lens 2 of the second embodiment is between -0.005mm and 0.005mm.

由第4B圖可看出，第二實施例之廣角鏡頭2其場曲介於-0.035mm至0.01mm之間。 It can be seen from FIG. 4B that the field curvature of the wide-angle lens 2 of the second embodiment is between -0.035mm and 0.01mm.

由第4C圖可看出，第二實施例之廣角鏡頭2其畸變介於-15%至0%之間。 It can be seen from FIG. 4C that the distortion of the wide-angle lens 2 of the second embodiment is between -15% and 0%.

顯見第二實施例之廣角鏡頭2之縱向像差、場曲、畸變都能被有效修正，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, and distortion of the wide-angle lens 2 of the second embodiment can be effectively corrected to obtain better optical performance.

請參閱第5圖，第5圖係依據本發明之廣角鏡頭之第三實施例的透鏡配置與光路示意圖。廣角鏡頭3沿著一光軸OA3從一物側至一像側依序包括一前透鏡群LG3_f、一光圈ST3、一後透鏡群LG3_r、一濾光片OF3及一保護玻璃CG3。前透鏡群LG3_f包括一第一透鏡L31、一第二透鏡L32及一第三透鏡L33。後透鏡群LG3_r包括一第四透鏡L34、一第五透鏡L35 及一第六透鏡L36。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】第一至十二段落，其中： Please refer to FIG. 5, which is a schematic diagram of the lens configuration and optical path of the third embodiment of the wide-angle lens according to the present invention. _{The wide-angle lens 3 includes a front lens group LG3 f} , an aperture ST3, a rear lens group LG3 _r , a filter OF3 and a protective glass CG3 in order from an object side to an image side along an optical axis OA3. The front lens group LG3 _f includes a first lens L31, a second lens L32, and a third lens L33. The rear lens group LG3 _r includes a fourth lens L34, a fifth lens L35, and a sixth lens L36. When imaging, the light from the object side is finally imaged on an imaging surface IMA3. According to the first to twelfth paragraphs of [Implementation Mode], in which:

第三透鏡L33為彎月型透鏡，其物側面S35為凹面； The third lens L33 is a meniscus lens, and its object side surface S35 is concave;

濾光片OF3其物側面S314與像側面S315皆為平面； The object side S314 and the image side S315 of the filter OF3 are both flat surfaces;

保護玻璃CG3其物側面S316與像側面S317皆為平面； The protective glass CG3, the object side S316 and the image side S317 are both flat;

利用上述透鏡、光圈ST3及至少滿足條件(1)至條件(9)其中一條件之設計，使得廣角鏡頭3能有效的縮短鏡頭總長度、有效的增加視場、有效的提升解析度、有效的修正像差、有效的修正色差。 Using the above-mentioned lens, aperture ST3, and a design that meets at least one of the conditions (1) to (9), the wide-angle lens 3 can effectively shorten the total length of the lens, effectively increase the field of view, effectively improve the resolution, and effectively correct Aberration, effective correction of chromatic aberration.

表七為第5圖中廣角鏡頭3之各透鏡之相關參數表。 Table 7 is a table of related parameters of each lens of the wide-angle lens 3 in Figure 5.

表七中非球面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非球面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 concavity z of the aspheric lens in Table 7 is the same as the definition of the aspheric surface concavity z of the aspheric lens in Table 1 in the first embodiment, and will not be repeated here.

表八為表七中非球面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 8 is a table of related parameters of the aspheric surface of the aspheric lens in Table 7, where k is the Conic Constant, and A~G are the aspheric coefficients.

表九為第三實施例之廣角鏡頭3之相關參數值及其對應條件(1)至條件(9)之計算值，由表九可知，第三實施例之廣角鏡頭3皆能滿足條件(1)至條件(9)之要求。 Table 9 shows the relevant parameter values of the wide-angle lens 3 of the third embodiment and the calculated values of the corresponding conditions (1) to (9). From Table 9, it can be seen that the wide-angle lens 3 of the third embodiment can all satisfy the conditions (1) to The requirements of condition (9).

另外，第三實施例之廣角鏡頭3的光學性能也可達到要求。 In addition, the optical performance of the wide-angle lens 3 of the third embodiment can also meet the requirements.

由第6A圖可看出，第三實施例之廣角鏡頭3其縱向像差介於-0.005mm至0.025mm之間。 It can be seen from FIG. 6A that the longitudinal aberration of the wide-angle lens 3 of the third embodiment is between -0.005 mm and 0.025 mm.

由第6B圖可看出，第三實施例之廣角鏡頭3其場曲介於-0.025mm至0.01mm之間。 It can be seen from FIG. 6B that the field curvature of the wide-angle lens 3 of the third embodiment is between -0.025mm and 0.01mm.

由第6C圖可看出，第三實施例之廣角鏡頭3其畸變介於-30%至0%之間。 It can be seen from FIG. 6C that the distortion of the wide-angle lens 3 of the third embodiment is between -30% and 0%.

顯見第三實施例之廣角鏡頭3之縱向像差、場曲、畸變都能被有效修正，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, and distortion of the wide-angle lens 3 of the third embodiment can be effectively corrected to obtain better optical performance.

請參閱第7圖，第7圖係依據本發明之廣角鏡頭之第四實施例的透鏡配置與光路示意圖。廣角鏡頭4沿著一光軸OA4從一物側至一像側依序包括一前透鏡群LG4_f、一光圈ST4、一後透鏡群LG4_r、一濾光片OF4及一保護玻璃CG4。前透鏡群LG4_f包括一第一透鏡L41、一第二透鏡L42及一第三透鏡L43。後透鏡群LG4_r包括一第四透鏡L44、一第五透鏡L45、一第六透鏡L46及一第七透鏡L47。成像時，來自物側之光線最後成像於一成像面IMA4上。根據【實施方式】第一至十二段落，其中： Please refer to FIG. 7, which is a schematic diagram of the lens configuration and optical path of the fourth embodiment of the wide-angle lens according to the present invention. _{The wide-angle lens 4 includes a front lens group LG4 f} , an aperture ST4, a rear lens group LG4 _r , a filter OF4 and a protective glass CG4 in order from an object side to an image side along an optical axis OA4. The front lens group LG4 _f includes a first lens L41, a second lens L42, and a third lens L43. The rear lens group LG4 _r includes a fourth lens L44, a fifth lens L45, a sixth lens L46, and a seventh lens L47. When imaging, the light from the object side is finally imaged on an imaging surface IMA4. According to the first to twelfth paragraphs of [Implementation Mode], in which:

第三透鏡L43為雙凸透鏡，其物側面S45為凸面； The third lens L43 is a double convex lens, and its object side surface S45 is a convex surface;

第七透鏡L47為彎月型透鏡具有正屈光力，由塑膠材質製成，其物側面S414為凹面，像側面S415為凸面，物側面S414與像側面S415皆為非球面表面。 The seventh lens L47 is a meniscus lens with positive refractive power, made of plastic material As a result, the object side surface S414 is a concave surface, the image side surface S415 is a convex surface, and both the object side surface S414 and the image side surface S415 are aspherical surfaces.

濾光片OF4其物側面S416與像側面S417皆為平面； The object side S416 and the image side S417 of the filter OF4 are both flat surfaces;

保護玻璃CG4其物側面S418與像側面S419皆為平面； The protective glass CG4, the object side S418 and the image side S419 are both flat;

利用上述透鏡、光圈ST4及至少滿足條件(1)至條件(9)其中一條件之設計，使得廣角鏡頭4能有效的縮短鏡頭總長度、有效的增加視場、有效的提升解析度、有效的修正像差、有效的修正色差。 Using the above-mentioned lens, aperture ST4, and a design that meets at least one of the conditions (1) to (9), the wide-angle lens 4 can effectively shorten the total length of the lens, effectively increase the field of view, effectively improve the resolution, and effectively correct Aberration, effective correction of chromatic aberration.

表十為第7圖中廣角鏡頭4之各透鏡之相關參數表。 Table 10 is a table of related parameters of each lens of the wide-angle lens 4 in Figure 7.

表十中非球面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非球面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 concavity z of the aspheric lens in Table 10 is the same as the definition of the aspheric surface concavity z of the aspheric lens in Table 1 in the first embodiment, and will not be repeated here.

表十一為表十中非球面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 11 is a table of related parameters of the aspheric surface of the aspheric lens in Table 10, where k is the Conic Constant, and A~G are the aspheric coefficients.

表十二為第四實施例之廣角鏡頭4之相關參數值及其對應條件(1)至條件(9)之計算值，由表十二可知，第四實施例之廣角鏡頭4 皆能滿足條件(1)至條件(9)之要求。 Table 12 shows the relevant parameter values of the wide-angle lens 4 of the fourth embodiment and the calculated values of the corresponding conditions (1) to (9). From Table 12, it can be seen that the wide-angle lens 4 of the fourth embodiment All can meet the requirements of condition (1) to condition (9).

另外，第四實施例之廣角鏡頭4的光學性能也可達到要求。 In addition, the optical performance of the wide-angle lens 4 of the fourth embodiment can also meet the requirements.

由第8A圖可看出，第四實施例之廣角鏡頭4其縱向像差介於-0.01mm至0.035mm之間。 It can be seen from FIG. 8A that the longitudinal aberration of the wide-angle lens 4 of the fourth embodiment is between -0.01 mm and 0.035 mm.

由第8B圖可看出，第四實施例之廣角鏡頭4其場曲介於-0.015mm至0.025mm之間。 It can be seen from FIG. 8B that the field curvature of the wide-angle lens 4 of the fourth embodiment is between -0.015mm and 0.025mm.

由第8C圖可看出，第四實施例之廣角鏡頭4其畸變介於-30%至0%之間。 It can be seen from FIG. 8C that the distortion of the wide-angle lens 4 of the fourth embodiment is between -30% and 0%.

顯見第四實施例之廣角鏡頭4之縱向像差、場曲、畸變都能被有效修正，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, and distortion of the wide-angle lens 4 of the fourth embodiment can be effectively corrected to obtain better optical performance.

請參閱第9圖，第9圖係依據本發明之廣角鏡頭之第五實施例的透鏡配置與光路示意圖。廣角鏡頭5沿著一光軸OA5從一物側至一像側依序包括一前透鏡群LG5_f、一光圈ST5、一後透鏡群LG5_r、一濾光片OF5及一保護玻璃CG5。前透鏡群LG5_f包括一第一透鏡L51、一第二透鏡L52及一第三透鏡L53。後透鏡群LG5_r包括一第四透鏡L54、一第五透鏡L55、一第六透鏡L56及一第七透鏡L57。成像時，來自物側之光線最後成像於一成像面IMA5上。根據【實施方式】第一至十二段落，其中： Please refer to FIG. 9, which is a schematic diagram of the lens configuration and optical path of the fifth embodiment of the wide-angle lens according to the present invention. _{The wide-angle lens 5 includes a front lens group LG5 f} , an aperture ST5, a rear lens group LG5 _r , a filter OF5 and a protective glass CG5 in order from an object side to an image side along an optical axis OA5. The front lens group LG5 _f includes a first lens L51, a second lens L52, and a third lens L53. The rear lens group LG5 _r includes a fourth lens L54, a fifth lens L55, a sixth lens L56, and a seventh lens L57. When imaging, the light from the object side is finally imaged on an imaging surface IMA5. According to [Implementation Mode] paragraphs 1 to 12, in which:

第三透鏡L53為雙凸透鏡，其物側面S55為凸面； The third lens L53 is a biconvex lens, and its object side surface S55 is a convex surface;

第七透鏡L57為雙凹透鏡具有負屈光力，由塑膠材質製成，其物側面S514為凹面，像側面S515為凹面，物側面S514與像側面S515皆為非球面表面。 The seventh lens L57 is a biconcave lens with negative refractive power and is made of plastic material. The object side surface S514 is a concave surface, the image side surface S515 is a concave surface, and both the object side surface S514 and the image side surface S515 are aspherical surfaces.

濾光片OF5其物側面S516與像側面S517皆為平面； The object side S516 and the image side S517 of the filter OF5 are both flat surfaces;

保護玻璃CG5其物側面S518與像側面S519皆為平面； The protective glass CG5, the object side S518 and the image side S519 are both flat surfaces;

利用上述透鏡、光圈ST5及至少滿足條件(1)至條件(9)其中一條件之設計，使得廣角鏡頭5能有效的縮短鏡頭總長度、有效的增加視場、有效的提升解析度、有效的修正像差、有效的修正色差。 Using the above-mentioned lens, aperture ST5 and a design that meets at least one of the conditions (1) to (9), the wide-angle lens 5 can effectively shorten the total length of the lens, effectively increase the field of view, effectively improve the resolution, and effectively correct Aberration, effective correction of chromatic aberration.

表十三為第9圖中廣角鏡頭5之各透鏡之相關參數表。 Table 13 is a table of related parameters of each lens of the wide-angle lens 5 in Figure 9.

表十三中非球面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非球面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 concavity z of the aspheric lens in Table 13 is the same as the definition of the aspheric surface concavity z of the aspheric lens in Table 1 in the first embodiment, and will not be repeated here.

表十四為表十三中非球面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 14 is a table of related parameters of the aspheric surface of the aspheric lens in Table 13, where k is the Conic Constant and A~G are the aspheric coefficients.

表十五為第五實施例之廣角鏡頭5之相關參數值及其對應條件(1)至條件(9)之計算值，由表十五可知，第五實施例之廣角鏡頭5皆能滿足條件(1)至條件(9)之要求。 Table 15 shows the relevant parameter values of the wide-angle lens 5 of the fifth embodiment and the calculated values of the corresponding conditions (1) to (9). From Table 15 it can be seen that the wide-angle lens 5 of the fifth embodiment can all satisfy the condition (1). ) To the requirements of condition (9).

另外，第五實施例之廣角鏡頭5的光學性能也可達到要求。 In addition, the optical performance of the wide-angle lens 5 of the fifth embodiment can also meet the requirements.

由第10A圖可看出，第五實施例之廣角鏡頭5其縱向像差介於-0.005mm至0.025mm之間。 It can be seen from FIG. 10A that the longitudinal aberration of the wide-angle lens 5 of the fifth embodiment is between -0.005 mm and 0.025 mm.

由第10B圖可看出，第五實施例之廣角鏡頭5其場曲介於-0.025mm至0.005mm之間。 It can be seen from FIG. 10B that the curvature of field of the wide-angle lens 5 of the fifth embodiment is between -0.025mm and 0.005mm.

由第10C圖可看出，第五實施例之廣角鏡頭5其畸變介於-30%至0%之間。 It can be seen from FIG. 10C that the distortion of the wide-angle lens 5 of the fifth embodiment is between -30% and 0%.

顯見第五實施例之廣角鏡頭5之縱向像差、場曲、畸變都能被有效修正，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, and distortion of the wide-angle lens 5 of the fifth embodiment can be effectively corrected, thereby obtaining better optical performance.

當廣角鏡頭滿足條件：-8.3

f_f/f

14與條件：4mm

f+f₄

5mm，可使良率提升。 When the wide-angle lens meets the conditions: -8.3

f _f /f

14 and condition: 4mm

f+f ₄

5mm, the yield can be improved.

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 should be defined by the scope of the patent application attached Prevail.

1‧‧‧廣角鏡頭 1‧‧‧Wide-angle lens

LG1_f‧‧‧前透鏡群 LG1 _f ‧‧‧Front lens group

LG1_r‧‧‧後透鏡群 LG1 _r ‧‧‧ rear lens group

L11‧‧‧第一透鏡 L11‧‧‧First lens

L12‧‧‧第二透鏡 L12‧‧‧Second lens

L13‧‧‧第三透鏡 L13‧‧‧Third lens

ST1‧‧‧光圈 ST1‧‧‧Aperture

L14‧‧‧第四透鏡 L14‧‧‧Fourth lens

L15‧‧‧第五透鏡 L15‧‧‧Fifth lens

L16‧‧‧第六透鏡 L16‧‧‧Sixth lens

OF1‧‧‧濾光片 OF1‧‧‧Filter

CG1‧‧‧保護玻璃 CG1‧‧‧Protection glass

IMA1‧‧‧成像面 IMA1‧‧‧imaging surface

OA1‧‧‧光軸 OA1‧‧‧Optical axis

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 S19‧‧‧Fourth lens image side

S110‧‧‧第五透鏡物側面 S110‧‧‧Fifth lens object side

S111‧‧‧第五透鏡像側面 S111‧‧‧Fifth lens image side

S112‧‧‧第六透鏡物側面 S112‧‧‧Sixth lens object side

S113‧‧‧第六透鏡像側面 S113‧‧‧Sixth lens image side

S114‧‧‧濾光片物側面 S114‧‧‧The side of the filter object

S115‧‧‧濾光片像側面 S115‧‧‧Filter image side

S116‧‧‧保護玻璃物側面 S116‧‧‧Protect the side of the glass object

S117‧‧‧保護玻璃像側面 S117‧‧‧Protect the side of the glass image

Claims

一種廣角鏡頭，包括： A wide-angle lens, including:

一前透鏡群，該前透鏡群包括一第一透鏡、一第二透鏡以及一第三透鏡；以及 A front lens group, the front lens group including a first lens, a second lens, and a third lens; and

一後透鏡群，該後透鏡群包括一第四透鏡、一第五透鏡以及一第六透鏡； A rear lens group, the rear lens group includes a fourth lens, a fifth lens, and a sixth lens;

該第一透鏡具有屈光力，該第一透鏡包括一凹面朝向一像側； The first lens has refractive power, and the first lens includes a concave surface facing an image side;

該第二透鏡具有負屈光力，該第二透鏡包括一凸面朝向一物側； The second lens has negative refractive power, and the second lens includes a convex surface facing an object side;

該第三透鏡具有屈光力，該第三透鏡包括一凸面朝向該像側； The third lens has refractive power, and the third lens includes a convex surface facing the image side;

該第四透鏡具有正屈光力； The fourth lens has positive refractive power;

該第五透鏡具有屈光力； The fifth lens has refractive power;

該第六透鏡具有正屈光力； The sixth lens has positive refractive power;

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該像側依序排列； 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;

該廣角鏡頭滿足以下條件： The wide-angle lens meets the following conditions:

-8.3

f_f/f

14； -8.3

f _f /f

14;

其中，f為該廣角鏡頭之一有效焦距，f_f為該前透鏡群之一有效焦距。 Wherein, f is an effective focal length of the wide-angle lens, and f _{f is} an effective focal length of the front lens group.

一種廣角鏡頭，包括： A wide-angle lens, including:

一前透鏡群，該前透鏡群包括一第一透鏡、一第二透鏡以及一第三透鏡；以及 A front lens group, the front lens group includes a first lens, a second lens, and a third lens; as well as

該第五透鏡具有屈光力； The fifth lens has refractive power;

4mm

f+f₄

5mm； 4mm

f+f ₄

5mm;

其中，f為該廣角鏡頭之一有效焦距，f₄為該第四透鏡之一有效焦距。 Wherein, f is an effective focal length of the wide-angle lens, and f _{4 is} an effective focal length of the fourth lens.

如申請專利範圍第1項至第2項中任一請求項所述之廣角鏡頭，其中該廣角鏡頭滿足以下條件： For the wide-angle lens described in any one of claims 1 to 2 in the scope of the patent application, the wide-angle lens meets the following conditions:

-5.65mm

(R₃₁×R₃₂)/(R₃₁+R₃₂)

-3.8mm； -5.65mm

(R ₃₁ ×R ₃₂ )/(R ₃₁ +R ₃₂ )

-3.8mm;

其中，R₃₁為該第三透鏡之一物側面之一曲率半徑，R₃₂為該第三透鏡之一像側面之一曲率半徑。 Wherein, R _{31 is a} radius of curvature of an object side surface of _{the third lens, and R 32 is a} radius of curvature of an image side surface of the third lens.

0.5<|(CRA-MRA)/CRA|<1.02； 0.5<|(CRA-MRA)/CRA|<1.02;

其中，CRA為該廣角鏡頭之一最大像高處之一主光線角度，MRA為該廣角鏡頭之一最大像高處之一邊緣光線角度。 Wherein, CRA is a chief ray angle of one of the largest image heights of the wide-angle lens, and MRA is a marginal ray angle of one of the largest image heights of the wide-angle lens.

如申請專利範圍第1項至第2項中任一請求項所述之廣角鏡頭，其中： Such as the wide-angle lens described in any one of claims 1 to 2 of the scope of patent application, in which:

該第一透鏡具有負屈光力，該第一透鏡更包括一凸面朝向該物側； The first lens has negative refractive power, and the first lens further includes a convex surface facing the object side;

該第二透鏡更包括一凹面朝向該像側； The second lens further includes a concave surface facing the image side;

該第三透鏡具有負屈光力，該第三透鏡更包括一凸面朝向該物側或更包括一凹面朝向該物側； The third lens has negative refractive power, and the third lens further includes a convex surface facing the object side or a concave surface facing the object side;

該第四透鏡包括一凸面朝向該物側以及另一凸面朝向該像側； The fourth lens includes a convex surface facing the object side and another convex surface facing the image side;

該第五透鏡具有負屈光力，該第五透鏡包括一凹面朝向該物側以及另一凹面朝向該像側；以及 The fifth lens element has negative refractive power, and the fifth lens element includes a concave surface facing the object side and another concave surface facing the image side; and

該第六透鏡包括一凸面朝向該物側以及另一凸面朝向該像側。 The sixth lens includes a convex surface facing the object side and another convex surface facing the image side.

-45度/mm

FOV/f₁

-22度/mm； -45 degrees/mm

FOV/f ₁

-22 degrees/mm;

105

Vd₁+Vd₄

140； 105

Vd ₁ +Vd ₄

140;

其中，FOV為該廣角鏡頭之一視場，f₁為該第一透鏡之一有效焦距，Vd₁為該第一透鏡之一阿貝係數，Vd₄為該第四透鏡之一阿貝係數。 Wherein, FOV is a field of view of the wide-angle lens, f _{1 is} an effective focal length of _{the first lens, Vd 1 is an} Abbe number of the first lens, and Vd _{4 is an} Abbe number of the fourth lens.

-5.1

(f₂+f₅)/f<-3.6； -5.1

(f ₂ +f ₅ )/f<-3.6;

其中，f為該廣角鏡頭之一有效焦距，f₂為該第二透鏡之一有效焦距，f₅為該第五透鏡之一有效焦距。 Wherein, f is an effective focal length of the wide-angle lens, f _{2 is} an effective focal length of the second lens, and f _{5 is} an effective focal length of the fifth lens.

0.12

BFL/TTL

0.23； 0.12

BFL/TTL

0.23;

9

TTL/T₄

19； 9

TTL/T ₄

19;

其中，BFL為最靠近該像側之一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，T₄為該第四透鏡於該光軸上之一厚度。 Wherein, BFL is a distance from an image side of a lens closest to the image side to an imaging surface on the optical axis, and TTL is a distance from an object side of the first lens to the imaging surface on the optical axis The pitch, T ₄ is a thickness of the fourth lens on the optical axis.

如申請專利範圍第1項至第2項中任一請求項所述之廣角鏡頭，其更包括一第七透鏡設置於該第六透鏡與該像側之間，該第七透鏡具有正屈光力，該第七透鏡包括一凹面朝向該物側以及一凸面朝向該像側。 For example, the wide-angle lens described in any one of claims 1 to 2 of the scope of the patent application further includes a seventh lens disposed between the sixth lens and the image side, the seventh lens has positive refractive power, and The seventh lens includes a concave surface facing the object side and a convex surface facing the image side.

如申請專利範圍第1項至第2項中任一請求項所述之廣角鏡頭，其更包括一第七透鏡設置於該第六透鏡與該像側之間，該第七透鏡具有負屈光力，該第七透鏡包括一凹面朝向該物側以及另一凹面朝向該像側。 For example, the wide-angle lens described in any one of claims 1 to 2 of the scope of the patent application further includes a seventh lens arranged between the sixth lens and the image side, the seventh lens having negative refractive power, and The seventh lens includes a concave surface facing the object side and another concave surface facing the image side.