TWI687736B - Wide-angle lens assembly - Google Patents
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- TWI687736B TWI687736B TW108112882A TW108112882A TWI687736B TW I687736 B TWI687736 B TW I687736B TW 108112882 A TW108112882 A TW 108112882A TW 108112882 A TW108112882 A TW 108112882A TW I687736 B TWI687736 B TW I687736B
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Abstract
Description
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 lens with a field of view of 180 degrees has a longer total lens length and effective focal length, which can no longer meet today's needs. It is necessary to have another new-structure wide-angle lens to meet the short total lens length, short effective focal length and The need for a 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 with a shorter total lens length, a shorter effective focal length, and a larger field of view, but still having 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 having negative refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having 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 sequentially arranged along the optical axis from the object side to the image side. The wide-angle lens satisfies the following conditions: 7.5<TTL/T 3 <9.6; where TTL is the distance between the object side of the first lens and an imaging plane 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 facing the object side and a concave surface facing the image side, the second lens includes a plane facing the object side and a concave surface facing the image side, and the third lens includes a convex surface facing the object side and another convex surface facing the image side. The fourth lens includes a concave surface facing the object side and another concave surface facing the image side, the fifth lens group includes a convex surface facing the object side and another convex surface facing the image side, and the sixth lens includes a convex surface facing the object side and another convex surface facing the image side 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 having negative refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having 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 sequentially arranged along the optical axis from the object side to the image side. The wide-angle lens satisfies the following conditions: 10.6<TTL/T 6 <29; where TTL is the distance between the object side of the first lens and an imaging plane 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, a concave surface facing the image side, and a second The lens includes a convex 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 another convex surface facing the image side, the fourth lens includes a convex surface facing the object side and another convex surface facing the image side, and the fifth The lens includes a convex surface facing the object side and another convex surface facing 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.
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。 The wide-angle lens satisfies the following conditions: TTL/f<11;BFL/TTL>0.22;19<TTL/T 1 <24; where TTL is the distance between the object side of the first lens and an imaging plane on the optical axis, BFL is a distance between the image side of the sixth lens and the imaging plane 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<|/|<1.8;0.5<|/|<1.8;其中,為第一透鏡群之一有效焦距,為第二透鏡群之一有效焦距,為第四透鏡群之一有效焦距,為第五透鏡群之一有效焦距。 The wide-angle lens satisfies the following conditions: 1<| / |<1.8;0.5<| / |<1.8; where, Is the effective focal length of one of the first lens groups, Is the effective focal length of one of the second lens groups, Is the effective focal length of one of the fourth lens groups, It is 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 the Abbe coefficient of one of the first lenses and Vd 2 is the second lens One of the Abbe coefficients, Nd 2 is the refractive index of one of the second lenses.
其中廣角鏡頭滿足以下條件:-3.4</f</f</f<3.8;2.5<|/f|<3.8;其中,為第一透鏡群之一有效焦距,為第二透鏡群之一有效焦距,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 satisfies the following conditions: -3.4< /f< /f< /f<3.8;2.5<| /f|<3.8; where, Is the effective focal length of one of the first lens groups, Is the effective focal length of one of the second lens groups, Is one of the effective focal lengths of the third lens group, and f is one of the effective focal lengths of the 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 objects, features, and advantages of the present invention more comprehensible, preferred embodiments are described in detail below in conjunction with the accompanying drawings.
1、2‧‧‧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 ‧‧‧ 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‧‧‧Side of the first lens
S12、S22‧‧‧第一透鏡像側面 S12, S22‧‧‧The first lens image side
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‧‧‧Side of third lens
S16、S26‧‧‧第三透鏡像側面 S16, S26‧‧‧‧Lens image side
S17、S27‧‧‧光圈面 S17, S27‧‧‧ Aperture
S18、S28‧‧‧第四透鏡物側面 S18, S28‧‧‧‧Side of the fourth lens
S19‧‧‧第四透鏡像側面(第五透鏡物側面) S19‧‧‧Image side of fourth lens (object side of fifth lens)
S29‧‧‧第四透鏡像側面 S29‧‧‧Image side of fourth lens
S110‧‧‧第五透鏡像側面 S110‧‧‧Image side of fifth lens
S111‧‧‧第六透鏡物側面 S111‧‧‧Sixth lens object side
S210‧‧‧第五透鏡物側面 S210‧‧‧Side of the fifth lens
S211‧‧‧第五透鏡像側面(第六透鏡物側面) S211‧‧‧Image side of fifth lens (object side of sixth lens)
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 ‧‧‧ filter side
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。 FIG. 2A is a longitudinal aberration (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。 FIG. 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。 FIG. 2C is a 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 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。 FIGS. 2E to 2I are diagrams of a transverse ray fan (Transverse Ray Fan) according to the first embodiment of the wide-angle lens of 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。 FIG. 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。 FIG. 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。 FIGS. 4E to 4J are lateral light 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 having a negative refractive power; a second lens group having a negative refractive power; a third lens group having a third lens group Positive refractive power; a fourth lens group, the fourth lens group has a positive refractive power; and a fifth lens group, the fifth lens group has a positive refractive power; wherein the first lens group includes a first lens having a negative refractive power, the first 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, which 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 sequentially arranged along the optical axis from the object side to the image side ; Among them, the wide-angle lens satisfies the following conditions: 7.5<TTL/T 3 <9.6; Among them, TTL is the distance between the object side of the first lens and an imaging plane on the optical axis, and T 3 is 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 having a negative refractive power; a second lens group having a negative refractive power; a third lens group having a third lens group Has a positive refractive power; a fourth lens group, the fourth lens group has a positive refractive power; and a fifth lens group, the fifth lens group has a positive refractive power; wherein the first lens group includes a first lens having a negative refractive power, this The first 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; wherein the first lens group, the second lens group, the third lens group, the fourth lens group, and the fifth lens group are sequentially along the optical axis from the object side to the image side Arrangement; where the wide-angle lens satisfies the following conditions: 10.6<TTL/T 6 <29; where, TTL is the distance between the object side of the first lens and an imaging plane 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 the following Table 1 and Table 3, where Table 1 and Table 3 are the relevant parameter tables of the lenses of the first to second embodiments 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 schematic diagrams of lens configurations of the first and second embodiments of the wide-angle lens of the present invention, respectively. In FIGS. 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. In FIG. 3, the fourth lens group LG2 4 has a positive refractive power including the fourth lens L24, and the fifth lens group LG2 5 has a positive refractive power including the fifth lens L25 and the sixth 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, the object side surfaces S11 and S21 are convex surfaces, and the object side surfaces S11 and S21 and the image side surfaces S12 and S22 are spherical surfaces.
第二透鏡L12、L22具有負屈光力,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。 In the fourth lenses L14 and L24, the object side surfaces S18 and S28 and the image side surfaces S19 and 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。 In the fifth lenses L15 and L25, the object side surfaces S19 and S210 and the image side surfaces S110 and S211 are all 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。 In the sixth lenses L16 and L26, the image side surfaces S112 and S212 are convex surfaces, and the object side surfaces S111 and S211 and the image side surfaces S112 and 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-
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)
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)
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。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。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。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。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。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。
Where f is the effective focal length of one of the wide-
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. Referring to FIG. 1, the wide-
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-
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 related parameter values of the wide-
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-
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。
As can be seen from FIG. 2A, the wide-
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 angle of the wide-
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 FIG. 2C that the distortion of the wide-
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 wide-
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。
As can be seen from FIGS. 2E to 2I, the wide-
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, field curvature, distortion, lateral chromatic aberration, and lateral aberration of the wide-
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 a lens configuration of a second embodiment of a wide-angle lens according to the present invention. The wide-
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-
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-
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-
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。
As can be seen from FIG. 4A, the wide-
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。
As can be seen from FIG. 4B, the field angle of the wide-
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-
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 wide-
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。
As can be seen from FIGS. 4E to 4J, the wide-
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, field curvature, distortion, lateral chromatic aberration, and lateral aberration of the wide-
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 as above in an embodiment, it is not intended to limit the present invention. Anyone who is familiar with this art can make various changes and modifications without departing from the spirit and scope of the present invention, so the protection of the present invention The scope shall be determined by 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‧‧‧Imaging surface
S11‧‧‧第一透鏡物側面 S11‧‧‧Side of the first lens
S12‧‧‧第一透鏡像側面 S12‧‧‧The first lens image side
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‧‧‧Side of third lens object
S16‧‧‧第三透鏡像側面 S16‧‧‧ Image side of the third lens
S17‧‧‧光圈面 S17‧‧‧Aperture
S18‧‧‧第四透鏡物側面 S18‧‧‧Fourth lens side
S19‧‧‧第四透鏡像側面(第五透鏡物側面) S19‧‧‧Image side of fourth lens (object side of fifth lens)
S110‧‧‧第五透鏡像側面 S110‧‧‧Image side of fifth lens
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‧‧‧ Filter side
S114‧‧‧濾光片像側面 S114‧‧‧ filter image side
Claims (10)
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TW108112882A TWI687736B (en) | 2019-04-12 | 2019-04-12 | Wide-angle lens assembly |
Applications Claiming Priority (1)
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TW108112882A TWI687736B (en) | 2019-04-12 | 2019-04-12 | Wide-angle lens assembly |
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TWI687736B true TWI687736B (en) | 2020-03-11 |
TW202037958A TW202037958A (en) | 2020-10-16 |
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TWI808581B (en) * | 2021-12-27 | 2023-07-11 | 大陸商信泰光學(深圳)有限公司 | Lens assembly |
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TW201430374A (en) * | 2014-01-27 | 2014-08-01 | 玉晶光電股份有限公司 | Electronic device and optical imaging lens thereof |
TW201730619A (en) * | 2016-02-26 | 2017-09-01 | 亞太精密工業(深圳)有限公司 | Wide-angle lens |
TW201802517A (en) * | 2016-04-08 | 2018-01-16 | 揚明光學股份有限公司 | Optical lens |
TW201816461A (en) * | 2016-10-28 | 2018-05-01 | 光芒光學股份有限公司 | Optical lens |
CN108152914A (en) * | 2016-12-05 | 2018-06-12 | 三星电机株式会社 | Optical imaging system |
TW201823793A (en) * | 2016-12-27 | 2018-07-01 | 信泰光學(深圳)有限公司 | Lens assembly |
TWM564165U (en) * | 2018-01-25 | 2018-07-21 | 今國光學工業股份有限公司 | Seven-piece miniaturized fisheye lens |
TW201839453A (en) * | 2017-04-27 | 2018-11-01 | 揚明光學股份有限公司 | Fixed focus lens |
TWM573434U (en) * | 2018-08-06 | 2019-01-21 | 今國光學工業股份有限公司 | Seven-piece wide-angle lens |
TW201918741A (en) * | 2017-11-07 | 2019-05-16 | 玉晶光電股份有限公司 | Optical imaging lens |
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TW201430374A (en) * | 2014-01-27 | 2014-08-01 | 玉晶光電股份有限公司 | Electronic device and optical imaging lens thereof |
TW201730619A (en) * | 2016-02-26 | 2017-09-01 | 亞太精密工業(深圳)有限公司 | Wide-angle lens |
TW201802517A (en) * | 2016-04-08 | 2018-01-16 | 揚明光學股份有限公司 | Optical lens |
TW201816461A (en) * | 2016-10-28 | 2018-05-01 | 光芒光學股份有限公司 | Optical lens |
CN108152914A (en) * | 2016-12-05 | 2018-06-12 | 三星电机株式会社 | Optical imaging system |
TW201823793A (en) * | 2016-12-27 | 2018-07-01 | 信泰光學(深圳)有限公司 | Lens assembly |
TW201839453A (en) * | 2017-04-27 | 2018-11-01 | 揚明光學股份有限公司 | Fixed focus lens |
TW201918741A (en) * | 2017-11-07 | 2019-05-16 | 玉晶光電股份有限公司 | Optical imaging lens |
TWM564165U (en) * | 2018-01-25 | 2018-07-21 | 今國光學工業股份有限公司 | Seven-piece miniaturized fisheye lens |
TWM573434U (en) * | 2018-08-06 | 2019-01-21 | 今國光學工業股份有限公司 | Seven-piece wide-angle lens |
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