TW202037958A - Wide-angle lens assembly - Google Patents

Wide-angle lens assembly Download PDF

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TW202037958A
TW202037958A TW108112882A TW108112882A TW202037958A TW 202037958 A TW202037958 A TW 202037958A TW 108112882 A TW108112882 A TW 108112882A TW 108112882 A TW108112882 A TW 108112882A TW 202037958 A TW202037958 A TW 202037958A
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lens
lens group
wide
refractive power
object side
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TW108112882A
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TWI687736B (en
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梁沅汎
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大陸商信泰光學（深圳）有限公司
亞洲光學股份有限公司
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Abstract

A wide-angle lens assembly includes a first lens group with negative refractive power, a second lens group with negative refractive power, a third lens group with positive refractive power, a fourth lens group with positive refractive power, and a fifth lens group with positive refractive power. The first lens group includes a first lens. The second lens group includes a second lens. The third lens group includes a third lens. The wide-angle lens assembly satisfies: 7.5 < TTL/T3 < 9.6; wherein TTL is an interval from an object side surface of the first to an image plane along the optical axis and T3 is a thickness of the third lens along the optical axis.

Description

廣角鏡頭(二十) Wide-angle lens (20)

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

現今視場達到180度的廣角鏡頭，其鏡頭總長度及有效焦距均較長，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，才能同時滿足鏡頭總長度較短、有效焦距較短及視場較大之需求。 Today’s wide-angle lenses with a 180-degree field of view have long overall lens length and effective focal length, which can no longer meet today’s needs. Another wide-angle lens with a new architecture is needed to meet the short overall length, shorter effective focal length and Need for larger field of view.

有鑑於此，本發明之主要目的在於提供一種廣角鏡頭，其鏡頭總長度較短、有效焦距較短、視場較大，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, which has a shorter overall lens length, shorter effective focal length, and larger field of view, but still has good optical performance.

本發明之廣角鏡頭包括一第一透鏡群具有負屈光力、一第二透鏡群具有負屈光力、一第三透鏡群具有正屈光力、一第四透鏡群具有正屈光力及一第五透鏡群具有正屈光力。第一透鏡群包括一第一透鏡。第二透鏡群包括一第二透鏡。第三透鏡群包括一第三透鏡。第一透鏡群、第二透鏡群、第三透鏡群、第四透鏡群及第五透鏡群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：7.5<TTL/T3<9.6；其中，TTL為第一透鏡之一物側面至一成像面於光軸上之一間距，T3為第三透鏡於光軸上之一厚度。 The wide-angle lens of the present invention includes a first lens group with negative refractive power, a second lens group with negative refractive power, a third lens group with positive refractive power, a fourth lens group with positive refractive power, and a fifth lens group with positive refractive power. The first lens group includes a first lens. The second lens group includes a second lens. The third lens group includes a third lens. The first lens group, the second lens group, the third lens group, the fourth lens group and the fifth lens group are arranged in order from the object side to the image side along an optical axis. The wide-angle lens satisfies the following conditions: 7.5<TTL/T 3 <9.6; among them, TTL is the distance between an object side of the first lens and an imaging surface on the optical axis, and T 3 is the thickness of the third lens on the optical axis .

其中第四透鏡群包括一第四透鏡及一第五透鏡，第五透鏡群包括一第六透鏡。 The fourth lens group includes a fourth lens and a fifth lens, and the fifth lens group includes a sixth lens.

其中第一透鏡具有負屈光力，第二透鏡具有負屈光力，第三透鏡具有正屈光力，第四透鏡具有負屈光力，第五透鏡具有正屈光力，第六透鏡具有正屈光力。 The first lens has negative refractive power, the second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, the fifth lens has positive refractive power, and the sixth lens has positive refractive power.

其中第一透鏡包括一凸面朝向物側及一凹面朝向像側，第二透鏡包括一平面朝向物側及一凹面朝向像側，第三透鏡包括一凸面朝向物側及另一凸面朝向像側，第四透鏡包括一凹面朝向物側及另一凹面朝向像側，第五透鏡群包括一凸面朝向物側及另一凸面朝向像側，第六透鏡包括一凸面朝向物側及另一凸面朝向像側，其中第四透鏡及第五透鏡膠合。 The first lens includes a convex surface toward the object side and a concave surface toward the image side. The second lens includes a flat surface toward the object side and a concave surface toward the image side. The third lens includes a convex surface toward the object side and another convex surface toward the image side. The fourth lens includes a concave surface toward the object side and another concave surface toward the image side. The fifth lens group includes a convex surface toward the object side and another convex surface toward the image side. The sixth lens includes a convex surface toward the object side and another convex surface toward the image. Side, where the fourth lens and the fifth lens are cemented.

本發明之另一種廣角鏡頭包括一第一透鏡群具有負屈光力、一第二透鏡群具有負屈光力、一第三透鏡群具有正屈光力、一第四透鏡群具有正屈光力及一第五透鏡群具有正屈光力。第一透鏡群包括一第一透鏡。第二透鏡群包括一第二透鏡。第三透鏡群包括一第三透鏡。第一透鏡群、第二透鏡群、第三透鏡群、第四透鏡群及第五透鏡群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：10.6<TTL/T6<29；其中，TTL為第一透鏡之一物側面至一成像面於光軸上之一間距，T6為第六透鏡於光軸上之一厚度。 Another wide-angle lens of the present invention includes a first lens group with negative refractive power, a second lens group with negative refractive power, a third lens group with positive refractive power, a fourth lens group with positive refractive power, and a fifth lens group with positive refractive power. Refractive power. The first lens group includes a first lens. The second lens group includes a second lens. The third lens group includes a third lens. The first lens group, the second lens group, the third lens group, the fourth lens group and the fifth lens group are arranged in order from the object side to the image side along an optical axis. The wide-angle lens satisfies the following conditions: 10.6<TTL/T 6 <29; where TTL is the distance between an object side of the first lens and an imaging surface on the optical axis, and T 6 is the thickness of the sixth lens on the optical axis .

其中第四透鏡群包括一第四透鏡，第五透鏡群包括一第五透鏡及一第六透鏡。 The fourth lens group includes a fourth lens, and the fifth lens group includes a fifth lens and a sixth lens.

其中第一透鏡具有負屈光力，第二透鏡具有負屈光力，第三透鏡具有正屈光力，第四透鏡具有正屈光力，第五透鏡具有正屈光力，第六透鏡具有負屈光力。 The first lens has negative refractive power, the second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, the fifth lens has positive refractive power, and the sixth lens has negative refractive power.

其中第一透鏡包括一凸面朝向物側一凹面朝向像側，第二 透鏡包括一凸面朝向物側及一凹面朝向像側，第三透鏡包括一凸面朝向物側及另一凸面朝向像側，第四透鏡包括一凸面朝向物側及另一凸面朝向像側，第五透鏡包括一凸面朝向物側及另一凸面朝向像側，第六透鏡包括一凹面朝向物側及另一凸面朝向像側，其中第五透鏡及第六透鏡膠合。 The first lens includes a convex surface facing the object side and a concave surface facing the image side. The lens includes a convex surface toward the object side and a concave surface toward the image side. The third lens includes a convex surface toward the object side and another convex surface toward the image side. The fourth lens includes a convex surface toward the object side and another convex surface toward the image side. The lens includes a convex surface facing the object side and another convex surface facing the image side. The sixth lens includes a concave surface facing the object side and another convex surface facing the image side. The fifth lens and the sixth lens are cemented.

其中廣角鏡頭滿足以下條件：TTL/f<11；BFL/TTL>0.22；19<TTL/T1<24；其中，TTL為第一透鏡之一物側面至一成像面於光軸上之一間距，BFL為第六透鏡之一像側面至成像面於光軸上之一間距，T1為第一透鏡於光軸上之一厚度，f為廣角鏡頭之一有效焦距。 Among them, the wide-angle lens meets the following conditions: TTL/f<11;BFL/TTL>0.22;19<TTL/T 1 <24; Among them, TTL is the distance between an object side of the first lens and an imaging surface on the optical axis, BFL is a distance between the image side surface of the sixth lens and the imaging surface on the optical axis, T 1 is a thickness of the first lens on the optical axis, and f is an effective focal length of the wide-angle lens.

其中廣角鏡頭滿足以下條件：1<|

Figure 108112882-A0101-12-0003-66
/
Figure 108112882-A0101-12-0003-67
|<1.8；0.5<|
Figure 108112882-A0101-12-0003-35
/
Figure 108112882-A0101-12-0003-36
|<1.8；其中，
Figure 108112882-A0101-12-0003-37
為第一透鏡群之一有效焦距，
Figure 108112882-A0101-12-0003-38
為第二透鏡群之一有效焦距，
Figure 108112882-A0101-12-0003-39
為第四透鏡群之一有效焦距，
Figure 108112882-A0101-12-0003-40
為第五透鏡群之一有效焦距。 The wide-angle lens meets the following conditions: 1<|
Figure 108112882-A0101-12-0003-66
/
Figure 108112882-A0101-12-0003-67
|<1.8;0.5<|
Figure 108112882-A0101-12-0003-35
/
Figure 108112882-A0101-12-0003-36
|<1.8; where,
Figure 108112882-A0101-12-0003-37
Is the effective focal length of one of the first lens groups,
Figure 108112882-A0101-12-0003-38
Is the effective focal length of one of the second lens groups,
Figure 108112882-A0101-12-0003-39
Is one of the effective focal lengths of the fourth lens group,
Figure 108112882-A0101-12-0003-40
One of the effective focal lengths of the fifth lens group.

其中廣角鏡頭滿足以下條件：0.5<|Vd1/Vd2|<1.1；21.6<|Vd2/Nd2|<47.3；其中，Vd1為第一透鏡之一阿貝係數，Vd2為第二透鏡之一阿貝係數，Nd2為第二透鏡之一折射率。 The wide-angle lens satisfies the following conditions: 0.5<|Vd 1 /Vd 2 |<1.1;21.6<|Vd 2 /Nd 2 |<47.3; where Vd 1 is one of the Abbe's coefficients of the first lens, and Vd 2 is the second lens One of the Abbe coefficients, Nd 2 is the refractive index of the second lens.

其中廣角鏡頭滿足以下條件：-3.4<

Figure 108112882-A0101-12-0003-41
/f<
Figure 108112882-A0101-12-0003-42
/f<
Figure 108112882-A0101-12-0003-43
/f<3.8；2.5<|
Figure 108112882-A0101-12-0003-68
/f|<3.8；其中，
Figure 108112882-A0101-12-0003-45
為第一透鏡群之一有效焦距，
Figure 108112882-A0101-12-0003-46
為第二透鏡群之一有效焦距，
Figure 108112882-A0101-12-0003-47
為第三透鏡群之一有效焦距，f為廣角鏡頭之一有效焦距。 The wide-angle lens meets the following conditions: -3.4<
Figure 108112882-A0101-12-0003-41
/f<
Figure 108112882-A0101-12-0003-42
/f<
Figure 108112882-A0101-12-0003-43
/f<3.8;2.5<|
Figure 108112882-A0101-12-0003-68
/f|<3.8; where,
Figure 108112882-A0101-12-0003-45
Is the effective focal length of one of the first lens groups,
Figure 108112882-A0101-12-0003-46
Is the effective focal length of one of the second lens groups,
Figure 108112882-A0101-12-0003-47
Is an effective focal length of the third lens group, and f is an effective focal length of a wide-angle lens.

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

1、2‧‧‧廣角鏡頭 1, 2‧‧‧Wide-angle lens

LG11、LG21‧‧‧第一透鏡群 LG1 1 、LG2 1 ‧‧‧First lens group

LG12、LG22‧‧‧第二透鏡群 LG1 2 、LG2 2 ‧‧‧Second lens group

LG13、LG23‧‧‧第三透鏡群 LG1 3 、LG2 3 ‧‧‧third lens group

LG14、LG24‧‧‧第四透鏡群 LG1 4 、LG2 4 ‧‧‧The fourth lens group

LG15、LG25‧‧‧第五透鏡群 LG1 5 、LG2 5 ‧‧‧Fifth lens group

L11、L21‧‧‧第一透鏡 L11、L21‧‧‧First lens

L12、L22‧‧‧第二透鏡 L12、L22‧‧‧Second lens

L13、L23‧‧‧第三透鏡 L13, L23‧‧‧third lens

L14、L24‧‧‧第四透鏡 L14, L24‧‧‧Fourth lens

L15、L25‧‧‧第五透鏡 L15、L25‧‧‧Fifth lens

L16、L26‧‧‧第六透鏡 L16、L26‧‧‧Sixth lens

ST1、ST2‧‧‧光圈 ST1, ST2‧‧‧Aperture

OA1、OA2‧‧‧光軸 OA1, OA2‧‧‧Optical axis

OF1、OF2‧‧‧濾光片 OF1, OF2‧‧‧Filter

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

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

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

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

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

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

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

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

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

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

S29‧‧‧第四透鏡像側面 S29‧‧‧Fourth lens image 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

S210‧‧‧第五透鏡物側面 S210‧‧‧Fifth lens object side

S211‧‧‧第五透鏡像側面(第六透鏡物側面) S211‧‧‧Fifth lens image side (6th lens object side)

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

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

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

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示意圖。 FIG. 1 is a schematic diagram of the lens configuration 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。 Figure 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 (Distortion) diagram of the first embodiment of the wide-angle lens according to the present invention.

第2D圖係依據本發明之廣角鏡頭之第一實施例的橫向色差(Lateral Color)圖。 Fig. 2D is a lateral chromatic aberration (Lateral Color) diagram of the first embodiment of the wide-angle lens according to the present invention.

第2E圖至第2I圖係依據本發明之廣角鏡頭之第一實施例的橫向光扇(Transverse Ray Fan)圖。 2E to 2I are diagrams of the Transverse Ray Fan 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示意圖。 FIG. 3 is a schematic diagram of the lens configuration 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4D圖係依據本發明之廣角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 wide-angle lens according to the present invention.

第4E圖至第4J圖係依據本發明之廣角鏡頭之第二實施例的橫向光扇圖。 4E to 4J are horizontal fan diagrams of the second embodiment of the wide-angle lens according to the present invention.

本發明提供一種廣角鏡頭，包括：一第一透鏡群，此第一透鏡群具有負屈光力；一第二透鏡群，此第二透鏡群具有負屈光力；一第三透鏡群，此第三透鏡群具有正屈光力；一第四透鏡群，此第四透鏡群具 有正屈光力；及一第五透鏡群，此第五透鏡群具有正屈光力；其中第一透鏡群包括一第一透鏡具有負屈光力，此第一透鏡包括一凸面朝向一物側；其中第二透鏡群包括一第二透鏡具有負屈光力；其中第三透鏡群包括一第三透鏡具有正屈光力；其中第五透鏡群包括一第六透鏡，此第六透鏡包括一凸面朝向一像側；其中第一透鏡群、第二透鏡群、第三透鏡群、第四透鏡群及第五透鏡群沿著一光軸從物側至像側依序排列；其中廣角鏡頭滿足以下條件：7.5<TTL/T3<9.6；其中，TTL為第一透鏡之一物側面至一成像面於光軸上之一間距，T3為第三透鏡於光軸上之一厚度。 The present invention provides a wide-angle lens, including: a first lens group, the first lens group has negative refractive power; a second lens group, the second lens group has negative refractive power; a third lens group, the third lens group has Positive refractive power; a fourth lens group, the fourth lens group has positive refractive power; and a fifth lens group, the fifth lens group has positive refractive power; wherein the first lens group includes a first lens with negative refractive power, the first lens group A lens includes a convex surface facing an object side; wherein the second lens group includes a second lens with negative refractive power; wherein the third lens group includes a third lens with positive refractive power; wherein the fifth lens group includes a sixth lens, The sixth lens includes a convex surface facing an image side; the first lens group, the second lens group, the third lens group, the fourth lens group, and the fifth lens group are arranged in order from the object side to the image side along an optical axis ; Among them, the wide-angle lens satisfies the following conditions: 7.5<TTL/T 3 <9.6; Among them, TTL is the distance between an object side of the first lens and an imaging surface on the optical axis, and T 3 is the distance between the third lens on the optical axis One thickness.

本發明提供另一種廣角鏡頭，包括：一第一透鏡群，此第一透鏡群具有負屈光力；一第二透鏡群，此第二透鏡群具有負屈光力；一第三透鏡群，此第三透鏡群具有正屈光力；一第四透鏡群，此第四透鏡群具有正屈光力；及一第五透鏡群，此第五透鏡群具有正屈光力；其中第一透鏡群包括一第一透鏡具有負屈光力，此第一透鏡包括一凸面朝向一物側；其中第二透鏡群包括一第二透鏡具有負屈光力；其中第三透鏡群包括一第三透鏡具有正屈光力；其中第五透鏡群包括一第六透鏡，此第六透鏡包括一凸面朝向一像側；其中第一透鏡群、第二透鏡群、第三透鏡群、第四透鏡群及第五透鏡群沿著一光軸從物側至像側依序排列；其中廣角鏡頭滿足以下條件：10.6<TTL/T6<29；其中，TTL為第一透鏡之一物側面至一成像面於光軸上之一間距，T6為第六透鏡於光軸上之一厚度。 The present invention provides another wide-angle lens, including: a first lens group, the first lens group has negative refractive power; a second lens group, the second lens group has negative refractive power; a third lens group, the third lens group Has positive refractive power; a fourth lens group, the fourth lens group has positive refractive power; and a fifth lens group, the fifth lens group has positive refractive power; wherein the first lens group includes a first lens with negative refractive power, this The first lens includes a convex surface facing an object side; the second lens group includes a second lens with negative refractive power; the third lens group includes a third lens with positive refractive power; the fifth lens group includes a sixth lens, The sixth lens includes a convex surface facing an image side; wherein the first lens group, the second lens group, the third lens group, the fourth lens group, and the fifth lens group are in sequence from the object side to the image side along an optical axis Arrangement; the wide-angle lens meets the following conditions: 10.6<TTL/T 6 <29; among them, TTL is the distance between an object side of the first lens and an imaging surface on the optical axis, and T 6 is the sixth lens on the optical axis One thickness.

請參閱底下表一及表三，其中表一及表三分别為依據本發明之廣角鏡頭之第一實施例至第二實施例的各透鏡之相關參數表。 Please refer to Table 1 and Table 3 below. Table 1 and Table 3 are related parameter tables of the lenses of the first embodiment to the second embodiment of the wide-angle lens according to the present invention.

第1、3圖分別為本發明之廣角鏡頭之第一、二實施例的透 鏡配置示意圖。第1、3圖中，第一透鏡群LG11、LG21具有負屈光力，分別包括第一透鏡L11、L21。第二透鏡群LG12、LG22具有負屈光力，分別包括第二透鏡L12、L22。第三透鏡群LG13、LG23具有正屈光力，分別包括第三透鏡L13、L23。第1圖中，第四透鏡群LG14具有正屈光力包括第四透鏡L14及第五透鏡L15，第五透鏡群LG15具有正屈光力包括第六透鏡L16。第3圖中，第四透鏡群LG24具有正屈光力包括第四透鏡L24，第五透鏡群LG25具有正屈光力包括第五透鏡L25及第六透鏡L26。 Figures 1 and 3 are respectively schematic diagrams of the lens arrangement of the first and second embodiments of the wide-angle lens of the present invention. In Figures 1 and 3, the first lens groups LG1 1 and LG2 1 have negative refractive power and include first lenses L11 and L21, respectively. The second lens groups LG1 2 and LG2 2 have negative refractive power and include second lenses L12 and L22, respectively. The third lens groups LG1 3 and LG2 3 have positive refractive power, and include third lenses L13 and L23, respectively. In FIG 1, the fourth lens group LG1 4 having a positive refractive power and a fifth lens L14 includes a fourth lens L15, the fifth lens group LG1 5 having a positive refractive power includes a sixth lens L16. FIG. 3, the fourth lens group LG2 4 having a positive refractive power includes a fourth lens L24, the fifth lens group LG2 5 having a positive refractive power and a sixth lens L25 including a fifth lens L26.

第一透鏡L11、L21具有負屈光力，其物側面S11、S21為凸面，物側面S11、S21與像側面S12、S22皆為球面表面。 The first lenses L11 and L21 have negative refractive power, and the object side surfaces S11 and S21 are convex surfaces, and the object side surfaces S11 and S21 and the image side surfaces S12 and S22 are all spherical surfaces.

第二透鏡L12、L22具有負屈光力，其物側面S13、S23與像側面S14、S24皆為球面表面。 The second lenses L12 and L22 have negative refractive power, and the object side surfaces S13 and S23 and the image side surfaces S14 and S24 are spherical surfaces.

第三透鏡L13、L23具有正屈光力，其物側面S15、S25與像側面S16、S26皆為球面表面。 The third lenses L13 and L23 have positive refractive power, and the object side surfaces S15 and S25 and the image side surfaces S16 and S26 are spherical surfaces.

第四透鏡L14、L24，其物側面S18、S28與像側面S19、S29皆為球面表面。 For the fourth lens L14, L24, the object side surfaces S18, S28 and the image side surfaces S19, S29 are spherical surfaces.

第五透鏡L15、L25，其物側面S19、S210與像側面S110、S211皆為球面表面。 For the fifth lens L15, L25, the object side surfaces S19, S210 and the image side surfaces S110, S211 are spherical surfaces.

第六透鏡L16、L26，其像側面S112、S212為凸面，物側面S111、S211與像側面S112、S212皆為球面表面。 For the sixth lens L16, L26, the image side surfaces S112, S212 are convex surfaces, and the object side surfaces S111, S211 and the image side surfaces S112, S212 are spherical surfaces.

另外，廣角鏡頭1、2至少滿足底下其中一條件：7.5<TTL/T3<9.6 (1) In addition, wide-angle lenses 1, 2 meet at least one of the following conditions: 7.5<TTL/T 3 <9.6 (1)

10.6<TTL/T6<29 (2) 10.6<TTL/T 6 <29 (2)

TTL/f<11 (3) TTL/f<11 (3)

BFL/TTL>0.22 (4) BFL/TTL>0.22 (4)

19<TTL/T1<24 (5) 19<TTL/T 1 <24 (5)

Figure 108112882-A0101-12-0007-1
Figure 108112882-A0101-12-0007-1

Figure 108112882-A0101-12-0007-2
Figure 108112882-A0101-12-0007-2

0.5<|Vd1/Vd2|<1.1 (8) 0.5<|Vd 1 /Vd 2 |<1.1 (8)

21.6<|Vd2/Nd2|<47.3 (9) 21.6<|Vd 2 /Nd 2 |<47.3 (9)

Figure 108112882-A0101-12-0007-3
Figure 108112882-A0101-12-0007-3

Figure 108112882-A0101-12-0007-4
Figure 108112882-A0101-12-0007-4

其中，f為第一實施例及第二實施例中，廣角鏡頭1、2之一有效焦距。

Figure 108112882-A0101-12-0007-72
為第一實施例及第二實施例中，第一透鏡群LG11、LG21之一有效焦距。
Figure 108112882-A0101-12-0007-49
為第一實施例及第二實施例中，第二透鏡群LG12、LG22之一有效焦距。
Figure 108112882-A0101-12-0007-69
為第一實施例及第二實施例中，第三透鏡群LG13、LG23之一有效焦距。
Figure 108112882-A0101-12-0007-51
為第一實施例及第二實施例中，第四透鏡群LG14、LG24之一有效焦距。
Figure 108112882-A0101-12-0007-52
為第一實施例及第二實施例中，第五透鏡群LG15、LG25之一有效焦距。Vd1為第一實施例及第二實施例中，第一透鏡L11、L21之一阿貝係數。Vd2為第一實施例及第二實施例中，第二透鏡L12、L22之一阿貝係數。Nd2為第一實施例及第二實施例中，第二透鏡L12、L22之一折射率。TTL為第一實施例及第二實施例中，第一透鏡L11、L21之物側面S11、S21分別至成像面IMA1、IMA2於光軸OA1、OA2上之一間距。BFL為第一實施例及第二實施例中，第六透鏡L16、L26之一像側面S112、S212分別至成像面IMA1、IMA2於光軸OA1、OA2上之一間距。T1為第一實施例及 第二實施例中，第一透鏡L11、L21於光軸OA1、OA2上之一厚度。T3為第一實施例及第二實施例中，第三透鏡L13、L23於光軸OA1、OA2上之一厚度。T6為第一實施例及第二實施例中，第六透鏡L16、L26於光軸OA1、OA2上之一厚度。使得廣角鏡頭1、2能有效的縮短鏡頭總長度、有效的縮短有效焦距、有效的增加視場、有效的修正像差。 Among them, f is one of the effective focal lengths of the wide-angle lenses 1 and 2 in the first and second embodiments.
Figure 108112882-A0101-12-0007-72
It is one of the effective focal lengths of the first lens group LG1 1 and LG2 1 in the first and second embodiments.
Figure 108112882-A0101-12-0007-49
It is one of the effective focal lengths of the second lens group LG1 2 and LG2 2 in the first and second embodiments.
Figure 108112882-A0101-12-0007-69
Example of embodiment and the second embodiment, the third lens group LG1 3, one embodiment of a first effective focal length LG2 3.
Figure 108112882-A0101-12-0007-51
Example of embodiment and the second embodiment, LG1 4, one LG2 4 effective focal length of the fourth lens group of the first embodiment.
Figure 108112882-A0101-12-0007-52
Example of the first embodiment and the second embodiment, the fifth lens group LG1 5, one of the effective focal length LG2 5. Vd 1 is one of the Abbe coefficients of the first lenses L11 and L21 in the first and second embodiments. Vd 2 is one of the Abbe coefficients of the second lenses L12 and L22 in the first and second embodiments. Nd 2 is one of the refractive indexes of the second lenses L12 and L22 in the first and second embodiments. TTL is a distance between the object side surfaces S11 and S21 of the first lens L11 and L21 and the imaging surfaces IMA1 and IMA2 on the optical axes OA1 and OA2 in the first and second embodiments, respectively. BFL is a distance between the image side surfaces S112, S212 of the sixth lens L16, L26 and the imaging surfaces IMA1, IMA2 on the optical axes OA1, OA2 in the first and second embodiments, respectively. T 1 is the first embodiment and the second embodiment, a first lens L11, L21 on the optical axis OA1, the thickness of one of OA2. T 3 is a thickness of the third lenses L13 and L23 on the optical axes OA1 and OA2 in the first and second embodiments. T 6 is a thickness of the sixth lenses L16 and L26 on the optical axes OA1 and OA2 in the first and second embodiments. The wide-angle lenses 1 and 2 can effectively shorten the total length of the lens, effectively shorten the effective focal length, effectively increase the field of view, and effectively correct aberrations.

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第一透鏡群LG11、一第二透鏡群LG12、一第三透鏡群LG13、一光圈ST1、一第四透鏡群LG14、一第五透鏡群LG15及一濾光片OF1。第一透鏡群LG11具有負屈光力且包括一第一透鏡L11。第二透鏡群LG12具有負屈光力且包括一第二透鏡L12。第三透鏡群LG13具有正屈光力且包括一第三透鏡L13。第四透鏡群LG14具有正屈光力且包括一第四透鏡L14及一第五透鏡L15，第四透鏡L14及第五透鏡L15膠合。第五透鏡群LG15具有正屈光力且包括一第六透鏡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】第一至十段落，其中：第一透鏡L11可更為彎月型透鏡，其像側面S12為凹面；第二透鏡L12可更為平凹透鏡，其物側面S13為平面，像側面S14為凹面；第三透鏡L13可更為雙凸透鏡，其物側面S15為凸面，像側面S16為凸面；第四透鏡L14可更為雙凹透鏡具有負屈光力，其物側面S18為凹面，像側面S19為凹面；第五透鏡L15可更為雙凸透鏡具有正屈光力，其物側面S19為凸面，像側面S110為凸面；第六透鏡L16可更為雙凸透鏡具有正屈光力，其物側面S111為凸面； 濾光片OF1其物側面S113與像側面S114皆為平面；利用上述透鏡、光圈ST1及至少滿足條件(1)至條件(11)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、有效的縮短有效焦距、有效的增加視場、有效的修正像差。 The first embodiment of the wide-angle lens of the present invention will now be described in detail. Please refer to Figure 1, the wide-angle lens 1 includes a first lens group LG1 1 , a second lens group LG1 2 , a third lens group LG1 3 , a aperture ST1, a fourth lens group LG1 4, a fifth lens group LG1 5 and a filter OF1. The first lens group LG1 1 having a negative refractive power and comprises a first lens L11. The second lens group LG1 2 has negative refractive power and includes a second lens L12. The third lens group LG1 3 having a positive refractive power and including a third lens L13. The fourth lens group LG1 4 having a positive refractive power and a fourth lens including a fifth lens L14 and L15, L14 of the fourth lens and the fifth lens L15 are cemented. The fifth lens group LG1 5 having a positive refractive power and including a sixth lens L16. When imaging, the light from the object side is finally imaged on an imaging surface IMA1. According to paragraphs 1 to 10 of the [Embodiment], wherein: the first lens L11 may be a meniscus lens with a concave image side surface S12; the second lens L12 may be a plano-concave lens with a flat object side surface S13, and the image The side surface S14 is concave; the third lens L13 can be a biconvex lens, the object side S15 is convex, and the image side S16 is convex; the fourth lens L14 can be a biconcave lens with negative refractive power, the object side S18 is concave, the image side S19 is a concave surface; the fifth lens L15 can be more biconvex lens with positive refractive power, its object side S19 is convex, and the image side surface S110 is convex; the sixth lens L16 can be more biconvex lens with positive refractive power, and its object side S111 is convex; The object side S113 and the image side S114 of the filter OF1 are both flat surfaces; using the above-mentioned lens, aperture ST1 and a design that meets at least one of the conditions (1) to (11), the wide-angle lens 1 can effectively shorten the total lens length , Effectively shorten the effective focal length, effectively increase the field of view, and effectively correct aberrations.

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.

Figure 108112882-A0101-12-0009-5
Figure 108112882-A0101-12-0009-5
Figure 108112882-A0101-12-0010-6
Figure 108112882-A0101-12-0010-6

表二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(11)之計算值，由表二可知，第一實施例之廣角鏡頭1皆能滿足條件(1)至條件(11)之要求。 Table 2 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 (11). From Table 2, it can be seen that the wide-angle lens 1 of the first embodiment can all satisfy the conditions (1) to The requirement of condition (11).

Figure 108112882-A0101-12-0010-7
Figure 108112882-A0101-12-0010-7
Figure 108112882-A0101-12-0011-8
Figure 108112882-A0101-12-0011-8

另外，第一實施例之廣角鏡頭1的光學性能也可達到要求，這可從第2A至第2I圖看出。第2A圖所示的，是第一實施例之廣角鏡頭1的縱向像差圖。第2B圖所示的，是第一實施例之廣角鏡頭1的場曲圖。第2C圖所示的，是第一實施例之廣角鏡頭1的畸變圖。第2D圖所示的，是第一實施例之廣角鏡頭1的橫向色差圖。第2E圖至第2I圖所示的，是第一實施例之廣角鏡頭1的橫向光扇圖。 In addition, the optical performance of the wide-angle lens 1 of the first embodiment can also meet the requirements, which can be seen from Figures 2A to 2I. Figure 2A shows a longitudinal aberration diagram of the wide-angle lens 1 of the first embodiment. Figure 2B shows a field curvature diagram of the wide-angle lens 1 of the first embodiment. Figure 2C shows the distortion diagram of the wide-angle lens 1 of the first embodiment. Figure 2D shows the lateral chromatic aberration diagram of the wide-angle lens 1 of the first embodiment. Figures 2E to 2I show the horizontal fan diagrams of the wide-angle lens 1 of the first embodiment.

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0.04mm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 0.04 mm.

由第2B圖可看出，第一實施例之廣角鏡頭1其場曲介於-0.04mm至0.04mm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 -0.04mm and 0.04mm.

由第2C圖可看出，第一實施例之廣角鏡頭1其畸變介於-100%至0%之間。 It can be seen from Figure 2C that the distortion of the wide-angle lens 1 of the first embodiment is between -100% and 0%.

由第2D圖可看出，第一實施例之廣角鏡頭1其橫向色差介於-2μm至5μm之間。 It can be seen from Fig. 2D that the lateral chromatic aberration of the wide-angle lens 1 of the first embodiment is between -2 μm and 5 μm.

由第2E圖至第2I圖可看出，第一實施例之廣角鏡頭1其橫向光扇值介於-16μm至20μm之間。 It can be seen from Fig. 2E to Fig. 2I that the lateral light fan value of the wide-angle lens 1 of the first embodiment is between -16 μm and 20 μm.

顯見第一實施例之廣角鏡頭1之縱向像差、場曲、畸變、橫向色差、橫向像差都能被有效修正，從而得到較佳的光學性能。 It is obvious that the longitudinal aberration, curvature of field, distortion, lateral chromatic aberration, and lateral aberration of the wide-angle lens 1 of the first embodiment can be effectively corrected to obtain 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 序包括一第一透鏡群LG21、一第二透鏡群LG22、一第三透鏡群LG23、一光圈ST2、一第四透鏡群LG24、一第五透鏡群LG25及一濾光片OF2。第一透鏡群LG21具有負屈光力且包括一第一透鏡L21。第二透鏡群LG22具有負屈光力且包括一第二透鏡L22。第三透鏡群LG23具有正屈光力且包括一第三透鏡L23。第四透鏡群LG24具有正屈光力且包括一第四透鏡L24。第五透鏡群LG25具有正屈光力且包括一第五透鏡L25及一第六透鏡L26。第五透鏡L25及第六透鏡L26膠合。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：第一透鏡L21可更為彎月型透鏡，其表面形狀凹凸與第一實施例中之第一透鏡L11相同，在此皆不加以贅述；第二透鏡L22可更為彎月型透鏡，其物側面S23為凸面，像側面S24為凹面；第三透鏡L23可更為雙凸透鏡，其表面形狀凹凸與第一實施例中之第三透鏡L13相同，在此皆不加以贅述；第四透鏡L24可更為雙凸透鏡具有正屈光力，其物側面S28為凸面，像側面S29為凸面；第五透鏡L25可更為雙凸透鏡具有正屈光力，其表面形狀凹凸與第一實施例中之第五透鏡L15相同，在此皆不加以贅述；第六透鏡L26可更為彎月型透鏡具有負屈光力，其物側面S211為凹面；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(11)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、有效的縮短有效焦距、有效的增加視場、有效的修正像差。 Please refer to FIG. 3, which is a schematic diagram of the lens configuration of the second embodiment of the wide-angle lens according to the present invention. The wide-angle lens 2 includes a first lens group LG2 1 , a second lens group LG2 2 , a third lens group LG2 3 , an aperture ST2, and a fourth lens group in order from an object side to an image side along an optical axis OA2. lens group LG2 4, a fifth lens group LG2 5 and a filter OF2. The first lens group LG2 1 having a negative refractive power and comprises a first lens L21. The second lens group LG2 2 having a negative refractive power and a second lens comprising L22. The third lens group LG2 3 having a positive refractive power and including a third lens L23. The fourth lens group LG2 4 having a positive refractive power and a fourth lens comprising L24. The fifth lens group LG2 5 having a positive refractive power and including a fifth lens and a sixth lens L25 L26. The fifth lens L25 and the sixth lens L26 are cemented. When imaging, the light from the object side is finally imaged on an imaging surface IMA2. According to paragraphs 1 to 10 of the [Embodiment Mode], the first lens L21 can be a meniscus lens, and its surface shape is the same as that of the first lens L11 in the first embodiment, which will not be repeated here; The second lens L22 can be a meniscus lens, the object side surface S23 is convex, and the image side surface S24 is concave; the third lens L23 can be a biconvex lens, the surface shape of which is the same as that of the third lens L13 in the first embodiment The fourth lens L24 can be more biconvex lens with positive refractive power, the object side surface S28 is convex, and the image side surface S29 is convex surface; the fifth lens L25 can be more biconvex lens with positive refractive power, and its surface shape The concavity and convexity are the same as that of the fifth lens L15 in the first embodiment, and will not be repeated here; the sixth lens L26 can be a meniscus lens with negative refractive power, and its object side S211 is concave; the filter OF2 has its object side Both S213 and the image side S214 are flat surfaces; using the above-mentioned lens, aperture ST2, and a design that satisfies at least one of conditions (1) to (11), the wide-angle lens 2 can effectively shorten the total length of the lens and effectively shorten the effective focal length. Effectively increase the field of view and effectively correct aberrations.

表三為第3圖中廣角鏡頭2之各透鏡之相關參數表。 Table 3 is a table of related parameters of each lens of the wide-angle lens 2 in Figure 3.

Figure 108112882-A0101-12-0013-9
Figure 108112882-A0101-12-0013-9
Figure 108112882-A0101-12-0014-10
Figure 108112882-A0101-12-0014-10

表四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(11)之計算值，由表四可知，第二實施例之廣角鏡頭2皆能滿足條件(1)至條件(11)之要求。 Table 4 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 (11). From Table 4, it can be seen that the wide-angle lens 2 of the second embodiment can all satisfy the conditions (1) to The requirement of condition (11).

Figure 108112882-A0101-12-0014-11
Figure 108112882-A0101-12-0014-11

另外，第二實施例之廣角鏡頭2的光學性能也可達到要求，這可從第4A至第4J圖看出。第4A圖所示的，是第二實施例之廣角鏡頭2的縱向像差圖。第4B圖所示的，是第二實施例之廣角鏡頭2的場曲圖。第4C圖所示的，是第二實施例之廣角鏡頭2的畸變圖。第4D圖所示的，是第二實施例之廣角鏡頭2的橫向色差圖。第4E圖至第4J圖所示的，是第二實施例之廣角鏡頭2的橫向光扇圖。 In addition, the optical performance of the wide-angle lens 2 of the second embodiment can also meet the requirements, which can be seen from Figures 4A to 4J. Figure 4A shows a longitudinal aberration diagram of the wide-angle lens 2 of the second embodiment. Figure 4B shows a field curvature diagram of the wide-angle lens 2 of the second embodiment. Figure 4C shows a distortion diagram of the wide-angle lens 2 of the second embodiment. Figure 4D shows the lateral chromatic aberration diagram of the wide-angle lens 2 of the second embodiment. Figures 4E to 4J show horizontal fan diagrams of the wide-angle lens 2 of the second embodiment.

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-0.015mm至0.010mm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 -0.015 mm and 0.010 mm.

由第4B圖可看出，第二實施例之廣角鏡頭2其場曲介於-0.09mm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 -0.09mm 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-100%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 -100% and 0%.

由第4D圖可看出，第二實施例之廣角鏡頭2其橫向色差介於-0.5μm至3.5μm之間。 It can be seen from FIG. 4D that the lateral chromatic aberration of the wide-angle lens 2 of the second embodiment is between -0.5 μm and 3.5 μm.

由第4E圖至第4J圖可看出，第二實施例之廣角鏡頭2其橫向光扇值介於-27μm至28μm之間。 It can be seen from FIGS. 4E to 4J that the wide-angle lens 2 of the second embodiment has a lateral light fan value between -27 μm and 28 μm.

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

雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟悉此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此本發明的保護範圍當視後附的申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone 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‧‧‧廣角鏡頭 1‧‧‧Wide-angle lens

LG11‧‧‧第一透鏡群 LG1 1 ‧‧‧First lens group

LG12‧‧‧第二透鏡群 LG1 2 ‧‧‧Second lens group

LG13‧‧‧第三透鏡群 LG1 3 ‧‧‧third lens group

LG14‧‧‧第四透鏡群 LG1 4 ‧‧‧Fourth lens group

LG15‧‧‧第五透鏡群 LG1 5 ‧‧‧Fifth 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

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

IMA1‧‧‧成像面 IMA1‧‧‧Image 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‧‧‧First lens image side

S13‧‧‧第二透鏡物側面 S13‧‧‧Object side of second lens

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

Claims (10)

一種廣角鏡頭，包括：一第一透鏡群，該第一透鏡群具有負屈光力；一第二透鏡群，該第二透鏡群具有負屈光力；一第三透鏡群，該第三透鏡群具有正屈光力；一第四透鏡群，該第四透鏡群具有正屈光力；以及一第五透鏡群，該第五透鏡群具有正屈光力；其中該第一透鏡群包括一第一透鏡；其中該第二透鏡群包括一第二透鏡；其中該第三透鏡群包括一第三透鏡；其中該第一透鏡群、該第二透鏡群、該第三透鏡群、該第四透鏡群以及該第五透鏡群沿著一光軸從該物側至該像側依序排列；其中該廣角鏡頭滿足以下條件：7.5<TTL/T3<9.6；其中，TTL為該第一透鏡之一物側面至一成像面於該光軸上之一間距，T3為該第三透鏡於該光軸上之一厚度。 A wide-angle lens includes: a first lens group, the first lens group has negative refractive power; a second lens group, the second lens group has negative refractive power; a third lens group, the third lens group has positive refractive power; A fourth lens group, the fourth lens group has positive refractive power; and a fifth lens group, the fifth lens group has positive refractive power; wherein the first lens group includes a first lens; wherein the second lens group includes A second lens; wherein the third lens group includes a third lens; wherein the first lens group, the second lens group, the third lens group, the fourth lens group and the fifth lens group are along a The optical axis is arranged in sequence from the object side to the image side; where the wide-angle lens meets the following conditions: 7.5<TTL/T 3 <9.6; where TTL is an object side of the first lens to an imaging surface on the optical axis The upper pitch, T 3 is a thickness of the third lens on the optical axis. 如申請專利範圍第1項所述之廣角鏡頭，其中該第四透鏡群包括一第四透鏡以及一第五透鏡，該第五透鏡群包括一第六透鏡。 According to the wide-angle lens described in claim 1, wherein the fourth lens group includes a fourth lens and a fifth lens, and the fifth lens group includes a sixth lens. 如申請專利範圍第2項所述之廣角鏡頭，其中該第一透鏡具有負屈光力，該第二透鏡具有負屈光力，該第三透鏡具有正屈光力，該第四透鏡具有負屈光力，該第五透鏡具有正屈光力，該第六透鏡具有正屈光力。 The wide-angle lens according to the second item of the patent application, wherein the first lens has negative refractive power, the second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, and the fifth lens has Positive refractive power, the sixth lens has positive refractive power. 如申請專利範圍第2項所述之廣角鏡頭，其中： 該第一透鏡包括一凸面朝向該物側以及一凹面朝向該像側；該第二透鏡包括一平面朝向該物側以及一凹面朝向該像側；該第三透鏡包括一凸面朝向該物側以及另一凸面朝向該像側該第四透鏡包括一凹面朝向該物側以及另一凹面朝向該像側；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；以及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；其中該第四透鏡以及該第五透鏡膠合。 The wide-angle lens described in item 2 of the scope of patent application, of which: The first lens includes a convex surface facing the object side and a concave surface facing the image side; the second lens includes a flat surface facing the object side and a concave surface facing the image side; the third lens includes a convex surface facing the object side and The other convex surface is facing the image side, the fourth lens includes a concave surface facing the object side and the other concave surface facing the image side; the fifth lens includes a convex surface facing the object side and another convex surface facing the image side; and the second lens The six lenses include a convex surface facing the object side and another convex surface facing the image side; wherein the fourth lens and the fifth lens are cemented. 如申請專利範圍第2項所述之廣角鏡頭，其中該廣角鏡頭滿足以下條件：19<TTL/T1<24；10.6<TTL/T6<29；BFL/TTL>0.22；0.5<|Vd1/Vd2|<1.1；21.6<|Vd2/Nd2|<47.3；其中，TTL為該第一透鏡之一物側面至一成像面於該光軸上之一間距，T1為該第一透鏡於該光軸上之一厚度，T6為該第六透鏡於該光軸上之一厚度，BFL為該第六透鏡之一像側面至該成像面於該光軸上之一間距，Vd1為該第一透鏡之一阿貝係數，Vd2為該第二透鏡之一阿貝係數，Nd2為該第二透鏡之一折射率。 For the wide-angle lens described in item 2 of the scope of patent application, the wide-angle lens meets the following conditions: 19<TTL/T 1 <24;10.6<TTL/T 6 <29;BFL/TTL>0.22;0.5<|Vd 1 /Vd 2 |<1.1;21.6<|Vd 2 /Nd 2 |<47.3; where, TTL is a distance between an object side of the first lens and an imaging surface on the optical axis, and T 1 is the distance between the first lens A thickness on the optical axis, T 6 is a thickness of the sixth lens on the optical axis, BFL is a distance from an image side surface of the sixth lens to the imaging surface on the optical axis, Vd 1 is An Abbe number of the first lens, Vd 2 is an Abbe number of the second lens, and Nd 2 is a refractive index of the second lens. 如申請專利範圍第1項所述之廣角鏡頭，其中該第四透鏡群包括一第四透鏡，該第五透鏡群包括一第五透鏡以及一第六透鏡。 According to the wide-angle lens described in claim 1, wherein the fourth lens group includes a fourth lens, and the fifth lens group includes a fifth lens and a sixth lens. 如申請專利範圍第6項所述之廣角鏡頭，其中該第一透鏡具有負屈光力，該第二透鏡具有負屈光力，該第三透鏡具有正屈光力，該第四透鏡具有正屈光力，該第五透鏡具有正屈光力，該第六透鏡具有負屈光力。 According to the wide-angle lens of claim 6, wherein the first lens has negative refractive power, the second lens has negative refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, and the fifth lens has With positive refractive power, the sixth lens has negative refractive power. 如申請專利範圍第6項所述之廣角鏡頭，其中：該第一透鏡包括一凸面朝向該物側以及一凹面朝向該像側；該第二透鏡包括一凸面朝向該物側以及一凹面朝向該像側；該第三透鏡包括一凸面朝向該物側以及另一凸面朝向該像側該第四透鏡包括一凸面朝向該物側以及另一凸面朝向該像側；該第五透鏡包括一凸面朝向該物側以及另一凸面朝向該像側；以及該第六透鏡包括一凹面朝向該物側以及另一凸面朝向該像側；其中該第五透鏡以及該第六透鏡膠合。 The wide-angle lens as described in claim 6, wherein: the first lens includes a convex surface facing the object side and a concave surface facing the image side; the second lens includes a convex surface facing the object side and a concave surface facing the image The third lens includes a convex surface toward the object side and another convex surface toward the image side. The fourth lens includes a convex surface toward the object side and another convex surface toward the image side; the fifth lens includes a convex surface toward the The object side and the other convex surface face the image side; and the sixth lens includes a concave surface facing the object side and another convex surface facing the image side; wherein the fifth lens and the sixth lens are cemented. 如申請專利範圍第6項所述之廣角鏡頭，其中該廣角鏡頭滿足以下條件：19<TTL/T1<24；10.6<TTL/T6<29；BFL/TTL>0.22；0.5<|Vd1/Vd2|<1.1；21.6<|Vd2/Nd2|<47.3；其中，TTL為該第一透鏡之一物側面至一成像面於該光軸上之一間距，T1為該第一透鏡於該光軸上之一厚度，T6為該第六透鏡於該光軸上之一厚度，BFL為該第六透鏡之一像側面至該成像面於該光軸上之一間距， Vd1為該第一透鏡之一阿貝係數，Vd2為該第二透鏡之一阿貝係數，Nd2為該第二透鏡之一折射率。 For the wide-angle lens described in item 6 of the scope of patent application, the wide-angle lens meets the following conditions: 19<TTL/T 1 <24;10.6<TTL/T 6 <29;BFL/TTL>0.22;0.5<|Vd 1 /Vd 2 |<1.1;21.6<|Vd 2 /Nd 2 |<47.3; where, TTL is a distance between an object side of the first lens and an imaging surface on the optical axis, and T 1 is the distance between the first lens A thickness on the optical axis, T 6 is a thickness of the sixth lens on the optical axis, BFL is a distance from an image side surface of the sixth lens to the imaging surface on the optical axis, Vd 1 is An Abbe number of the first lens, Vd 2 is an Abbe number of the second lens, and Nd 2 is a refractive index of the second lens. 如申請專利範圍第1項所述之廣角鏡頭，其中該廣角鏡頭滿足以下條件：TTL/f<11；1<|
Figure 108112882-A0101-13-0004-53
/
Figure 108112882-A0101-13-0004-54
|<1.8；0.5<|
Figure 108112882-A0101-13-0004-55
/
Figure 108112882-A0101-13-0004-56
|<1.8；-3.4<
Figure 108112882-A0101-13-0004-57
/f<
Figure 108112882-A0101-13-0004-58
/f<
Figure 108112882-A0101-13-0004-70
/f<3.8；2.5<|
Figure 108112882-A0101-13-0004-71
/f|<3.8；其中，TTL為該第一透鏡之一物側面至一成像面於該光軸上之一間距，f為該廣角鏡頭之一有效焦距，
Figure 108112882-A0101-13-0004-61
為該第一透鏡群之一有效焦距，
Figure 108112882-A0101-13-0004-62
為該第二透鏡群之一有效焦距，
Figure 108112882-A0101-13-0004-63
為該第三透鏡群之一有效焦距，
Figure 108112882-A0101-13-0004-64
為該第四透鏡群之一有效焦距，
Figure 108112882-A0101-13-0004-65
為該第五透鏡群之一有效焦距。 For the wide-angle lens described in item 1 of the scope of patent application, the wide-angle lens meets the following conditions: TTL/f<11;1<|
Figure 108112882-A0101-13-0004-53
/
Figure 108112882-A0101-13-0004-54
|<1.8;0.5<|
Figure 108112882-A0101-13-0004-55
/
Figure 108112882-A0101-13-0004-56
|<1.8;-3.4<
Figure 108112882-A0101-13-0004-57
/f<
Figure 108112882-A0101-13-0004-58
/f<
Figure 108112882-A0101-13-0004-70
/f<3.8;2.5<|
Figure 108112882-A0101-13-0004-71
/f|<3.8; where TTL is a distance between an object side of the first lens and an imaging surface on the optical axis, f is an effective focal length of the wide-angle lens,
Figure 108112882-A0101-13-0004-61
Is an effective focal length of the first lens group,
Figure 108112882-A0101-13-0004-62
Is an effective focal length of the second lens group,
Figure 108112882-A0101-13-0004-63
Is one of the effective focal lengths of the third lens group,
Figure 108112882-A0101-13-0004-64
Is one of the effective focal lengths of the fourth lens group,
Figure 108112882-A0101-13-0004-65
Is one of the effective focal lengths of the fifth lens group.
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TWI479188B (en) * 2014-01-27 2015-04-01 玉晶光電股份有限公司 Electronic device and optical imaging lens thereof
TWI701457B (en) * 2016-02-26 2020-08-11 大陸商科太精密工業（深圳）有限公司 Wide-angle lens
US10551593B2 (en) * 2016-04-08 2020-02-04 Young Optics Inc. Optical lens
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* Cited by examiner, † Cited by third party
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