TWM581700U - Optical imaging lens and imaging device - Google Patents
Optical imaging lens and imaging device Download PDFInfo
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- TWM581700U TWM581700U TW108204442U TW108204442U TWM581700U TW M581700 U TWM581700 U TW M581700U TW 108204442 U TW108204442 U TW 108204442U TW 108204442 U TW108204442 U TW 108204442U TW M581700 U TWM581700 U TW M581700U
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本創作係有關於一種光學成像裝置,特別是有關於一種可用於車用攝影裝置、監控系統或可攜式電子裝置之光學成像透鏡組,以及具有此光學成像透鏡組之成像裝置。 The present invention relates to an optical imaging device, and more particularly to an optical imaging lens set that can be used in a vehicle photographic device, a monitoring system, or a portable electronic device, and an imaging device having the optical imaging lens group.
隨著半導體製程技術的進步,使得攝影裝置之影像感測元件(如CCD及CMOS Image Sensor)可以達到尺寸小型化的要求,因此提高小型攝影裝置(Miniaturized Camera)的製造便利性,帶動數位電子產品紛紛搭載小型攝影裝置以提供影像拍攝功能的趨勢。然而,攝影裝置除了因應尺寸小型化的潮流之外,為符合消費者的使用需求,攝影裝置亦朝向更高的解析度、更高的鏡頭規格發展,例如大口徑比、大視場角,以及更低的製造成本。 With the advancement of semiconductor process technology, image sensing components (such as CCD and CMOS Image Sensor) of the photographic device can meet the requirements of size miniaturization, thereby improving the manufacturing convenience of the Miniaturized Camera and driving digital electronic products. A small photographic device is being installed to provide a trend in image capturing functions. However, in addition to the trend of miniaturization of the photographic device, in order to meet the needs of consumers, the photographic device is also developed toward higher resolution and higher lens specifications, such as a large aperture ratio, a large angle of view, and Lower manufacturing costs.
已知反遠距攝像鏡頭具有廣角、大孔徑的特色,此類鏡頭通常是由具有負屈折力的前鏡群及具有正屈折力的後鏡群所構成。以美國專利第7623305號為例,其包含具有負屈折力之第一鏡群、光圈及具有正屈折力之第二鏡群;第一鏡群包含具有負屈折力之第一透鏡及具有正屈折力之第二透鏡,第二鏡群包含具有正屈折力之第三透鏡、具有負屈折力之第四透鏡及具有正屈折力之第五透鏡。其中,所述專利之第一透鏡及第二透鏡均為彎月形透鏡,且第一透鏡包含凸面之物側面、凹面之像側面、而第二透鏡包含凸面之物側面及凹 面之像側面。雖然在此架構下,可以縮小鏡頭成像的畸變像差,但是在視場角變大時,卻會使得其他像差(例如場曲像差)變得難以修正。 It is known that an anti-distance camera lens has a wide angle and a large aperture. Such a lens is usually composed of a front lens group having a negative refractive power and a rear lens group having a positive refractive power. Taking U.S. Patent No. 7,623,305 as an example, it includes a first mirror group having a negative refractive power, an aperture, and a second mirror group having a positive refractive power; the first mirror group includes a first lens having a negative refractive power and having a positive refractive index The second lens of the force, the second mirror group includes a third lens having a positive refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive refractive power. Wherein, the first lens and the second lens of the patent are both meniscus lenses, and the first lens includes a convex side surface, a concave image side surface, and the second lens includes a convex side surface and a concave surface The side of the image. Although the distortion of the lens imaging can be reduced under this architecture, when the angle of view becomes large, other aberrations (such as field curvature aberration) become difficult to correct.
本創作提供一種光學成像透鏡組,由物側至像側依序包含:具有負屈折力之第一鏡群、光圈及具有正屈折力之第二鏡群。所述第一鏡群包含第一透鏡及第二透鏡,其中,第一透鏡具有負屈折力,其像側面為凹面;第二透鏡具有正屈折力,其物側面為凹面、像側面為凸面,且第二透鏡之物側面及像側面皆為非球面。所述第二鏡群包含第三透鏡、第四透鏡及第五透鏡,其中,第三透鏡具有正屈折力,其物側面為凸面,其像側面為凸面;第四透鏡具有負屈折力,且第四透鏡之物側面的離軸處及像側面為凹面;第五透鏡具有正屈折力,其物側面為凸面,且第三透鏡、第四透鏡及第五透鏡之物側面及像側面皆為非球面;所述光學成像透鏡組之透鏡總數為五片。所述光學成像透鏡組滿足以下關係式:1<f3/EFL<1.35;及2.5<f2/EFL<4.5;其中,EFL為所述光學成像透鏡組之有效焦距,f2為第二透鏡之焦距,f3為第三透鏡之焦距。 The present invention provides an optical imaging lens group comprising, in order from the object side to the image side, a first mirror group having a negative refractive power, an aperture, and a second mirror group having a positive refractive power. The first lens group includes a first lens and a second lens, wherein the first lens has a negative refractive power and the image side is a concave surface; the second lens has a positive refractive power, the object side surface is a concave surface, and the image side surface is a convex surface. And the object side surface and the image side surface of the second lens are aspherical surfaces. The second lens group includes a third lens, a fourth lens, and a fifth lens, wherein the third lens has a positive refractive power, the object side surface is a convex surface, the image side surface thereof is a convex surface, and the fourth lens has a negative refractive power, and The off-axis and the image side of the object surface of the fourth lens are concave; the fifth lens has a positive refractive power, and the object side surface is a convex surface, and the object side and the image side surface of the third lens, the fourth lens, and the fifth lens are both The aspherical surface; the total number of lenses of the optical imaging lens group is five. The optical imaging lens group satisfies the following relationship: 1 < f3 / EFL < 1.35; and 2.5 < f2 / EFL < 4.5; wherein EFL is the effective focal length of the optical imaging lens group, and f2 is the focal length of the second lens, F3 is the focal length of the third lens.
根據本創作之一實施例,所述第一透鏡滿足以下關係式:0.95<(C1+C2)/(C2-C1)<1.15;其中,C1、C2分別為第一透鏡之物側面及像側面的曲率。 According to an embodiment of the present invention, the first lens satisfies the following relationship: 0.95<(C1+C2)/(C2-C1)<1.15; wherein C1 and C2 are the object side and the image side of the first lens, respectively. Curvature.
根據本創作之一實施例,所述光學成像透鏡組滿足以下關係式:|Φ1/Nd1+Φ2/Nd2+Φ3/Nd3+Φ4/Nd4+Φ5/Nd5|<0.02;其中,Φ1至Φ5分別為第一透鏡至第五透鏡之屈折力(Refractive Power),Nd1至Nd5分別為第一透鏡至第五透鏡之折射率。 According to an embodiment of the present invention, the optical imaging lens group satisfies the following relationship: |Φ1/Nd1+Φ2/Nd2+Φ3/Nd3+Φ4/Nd4+Φ5/Nd5|<0.02; wherein Φ1 to Φ5 are respectively The refractive power of the first to fifth lenses, Nd1 to Nd5 are the refractive indices of the first to fifth lenses, respectively.
根據本創作之一實施例,所述第二透鏡滿足以下關係式:0.35<R4/R3<0.5;其中,R3、R4分別為第二透鏡之物側面及像側面的曲率半徑。 According to an embodiment of the present invention, the second lens satisfies the following relationship: 0.35 < R4 / R3 < 0.5; wherein R3, R4 are the curvature radii of the object side and the image side of the second lens, respectively.
根據本創作之一實施例,所述光學成像透鏡組滿足以下關係式:0.6<AT2/AT1<2;其中,AT1為第一透鏡之像側面至第二透鏡之物側面於光軸上的距離,AT2為第二透鏡之像側面至第三透鏡之物側面於光軸上的距離。 According to an embodiment of the present invention, the optical imaging lens group satisfies the following relationship: 0.6<AT2/AT1<2; wherein AT1 is the distance from the image side of the first lens to the object side of the second lens on the optical axis. AT2 is the distance from the image side of the second lens to the object side of the third lens on the optical axis.
根據本創作之一實施例,所述光學成像透鏡組滿足以下關係式:2.5<AT2/(AT3+AT4)<5;其中,AT2為第二透鏡之像側面至第三透鏡之物側面於光軸上的距離,AT3為第三透鏡之像側面至第四透鏡之物側面於光軸上的距離,AT4為第四透鏡之像側面至第五透鏡之物側面於光軸上的距離。 According to an embodiment of the present invention, the optical imaging lens group satisfies the following relationship: 2.5<AT2/(AT3+AT4)<5; wherein AT2 is the image side of the second lens to the side of the third lens. The distance on the axis, AT3 is the distance from the image side of the third lens to the object side of the fourth lens on the optical axis, and AT4 is the distance from the image side of the fourth lens to the object side of the fifth lens on the optical axis.
根據本創作之一實施例,所述光學成像透鏡組滿足以下關係式:Nd4>Nd5;及Vd4<Vd5;其中,Nd4、Nd5分別為第四透鏡及第五透鏡之折射率,Vd4、Vd5分別第四透鏡及第五透鏡之色散係數。較佳地,第四透鏡之色散係數Vd4<30,第五透鏡之色散係數Vd5>55。 According to an embodiment of the present invention, the optical imaging lens group satisfies the following relationship: Nd4>Nd5; and Vd4<Vd5; wherein Nd4 and Nd5 are refractive indices of the fourth lens and the fifth lens, respectively, Vd4 and Vd5 respectively The dispersion coefficient of the fourth lens and the fifth lens. Preferably, the fourth lens has a dispersion coefficient Vd4 < 30, and the fifth lens has a dispersion coefficient Vd5 > 55.
根據本創作之一實施例,所述第三透鏡滿足以下關係式:-0.95<R6/R5<-0.7;其中,R5、R6分別為第三透鏡之物側面及像側面的曲率半徑。 According to an embodiment of the present invention, the third lens satisfies the following relationship: −0.95<R6/R5<−0.7; wherein R5 and R6 are the curvature radii of the object side and the image side of the third lens, respectively.
根據本創作之一實施例,所述光學成像透鏡組滿足以下關係式:-1.3<f1/EFL<-1.0;其中,f1為第一透鏡之焦距。 According to an embodiment of the present invention, the optical imaging lens group satisfies the following relationship: -1.3 < f1/EFL < -1.0; wherein f1 is the focal length of the first lens.
根據本創作之一實施例,所述光學成像透鏡組滿足以下關係式:5.2<TTL/ImgH<5.7;其中,ImgH為所述光學成像透鏡組之最大像高,TTL為第一透鏡之物側面至所述光學成像透鏡組之成像面在光軸上的距離。 According to an embodiment of the present invention, the optical imaging lens group satisfies the following relationship: 5.2 < TTL / ImgH < 5.7; wherein, ImgH is the maximum image height of the optical imaging lens group, and TTL is the object side of the first lens The distance to the imaging plane of the optical imaging lens group on the optical axis.
本創作更提供一種成像裝置,包含如前述之光學成像透鏡組及一影像感測元件。 The present invention further provides an imaging apparatus comprising the optical imaging lens group as described above and an image sensing element.
為使本創作之上述特徵和優點能更明顯易懂,以下列舉數個實施例,並配合所附圖式詳細說明如下,然而以下說明內容及圖式僅為了示例之用,並非用限制本創作之範圍。 In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following embodiments are described in detail below with reference to the accompanying drawings. However, the following descriptions and drawings are for illustrative purposes only and are not intended to limit the present invention. The scope.
10、20、30、40、50、60、70、80‧‧‧光學成像透鏡組 10, 20, 30, 40, 50, 60, 70, 80‧‧‧ optical imaging lens sets
11、21、31、41、51、61、71、81‧‧‧第一透鏡 11, 21, 31, 41, 51, 61, 71, 81‧‧‧ first lens
12、22、32、42、52、62、72、82‧‧‧第二透鏡 12, 22, 32, 42, 52, 62, 72, 82‧‧‧ second lens
13、23、33、43、53、63、73、83‧‧‧第三透鏡 13, 23, 33, 43, 53, 63, 73, 83‧‧‧ third lens
14、24、34、44、54、64、74、84‧‧‧第四透鏡 14, 24, 34, 44, 54, 64, 74, 84‧‧‧ fourth lens
15、25、35、45、55、65、75、85‧‧‧第五透鏡 15, 25, 35, 45, 55, 65, 75, 85‧‧‧ fifth lens
11a、21a、31a、41a、51a、61a、71a、81a‧‧‧第一透鏡之物側面 11a, 21a, 31a, 41a, 51a, 61a, 71a, 81a‧‧‧ side of the first lens
11b、21b、31b、41b、51b、61b、71b、81b‧‧‧第一透鏡之像側面 11b, 21b, 31b, 41b, 51b, 61b, 71b, 81b‧‧‧ image side of the first lens
12a、22a、32a、42a、52a、62a、72a、82a‧‧‧第二透鏡之物側面 12a, 22a, 32a, 42a, 52a, 62a, 72a, 82a‧‧‧ the side of the second lens
12b、22b、32b、42b、52b、62b、72b、82b‧‧‧第二透鏡之像側面 12b, 22b, 32b, 42b, 52b, 62b, 72b, 82b‧‧‧ image side of the second lens
13a、23a、33a、43a、53a、63a、73a、83a‧‧‧第三透鏡之物側面 13a, 23a, 33a, 43a, 53a, 63a, 73a, 83a ‧ ‧ the side of the third lens
13b、23b、33b、43b、53b、63b、73b、83b‧‧‧第三透鏡之像側面 13b, 23b, 33b, 43b, 53b, 63b, 73b, 83b‧‧‧ image side of the third lens
14a、24a、34a、44a、54a、64a、74a、84a‧‧‧第四透鏡之物側面 14a, 24a, 34a, 44a, 54a, 64a, 74a, 84a ‧ ‧ the side of the fourth lens
14b、24b、34b、44b、54b、64b、74b、84b‧‧‧第四透鏡之像側面 14b, 24b, 34b, 44b, 54b, 64b, 74b, 84b‧‧‧ image side of the fourth lens
15a、25a、35a、45a、55a、65a、75a、85a‧‧‧第五透鏡之物側面 15a, 25a, 35a, 45a, 55a, 65a, 75a, 85a‧‧‧ the side of the fifth lens
15b、25b、35b、45b、55b、65b、75b、85b‧‧‧第五透鏡之像側面 15b, 25b, 35b, 45b, 55b, 65b, 75b, 85b‧‧‧ image side of the fifth lens
16a、16b、26a、26b、36a、36b、46a、46b、56a、56b、66a、66b、76a、76b、86a、86b‧‧‧濾光元件之二表面 16a, 16b, 26a, 26b, 36a, 36b, 46a, 46b, 56a, 56b, 66a, 66b, 76a, 76b, 86a, 86b ‧ ‧ ‧ two surfaces of the filter element
16、26、36、46、56、66、76、86‧‧‧濾光元件 16, 26, 36, 46, 56, 66, 76, 86‧‧‧ Filter elements
17、27、37、47、57、67、77、87‧‧‧成像面 17, 27, 37, 47, 57, 67, 77, 87 ‧ ‧ imaging surface
100、200、300、400、500、600、700、800‧‧‧影像感測元件 100, 200, 300, 400, 500, 600, 700, 800‧‧‧ image sensing components
G1‧‧‧第一鏡群 G1‧‧‧ first mirror group
G2‧‧‧第二鏡群 G2‧‧‧Second mirror group
I‧‧‧光軸 I‧‧‧ optical axis
ST‧‧‧光圈 ST‧‧‧ aperture
圖1A為本創作第一實施例之光學成像透鏡組示意圖。 1A is a schematic view of the optical imaging lens unit of the first embodiment of the present invention.
圖1B由左至右依序為本創作第一實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 1B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the first embodiment, which are sequentially composed from left to right.
圖2A為本創作第二實施例之光學成像透鏡組示意圖。 2A is a schematic view of the optical imaging lens unit of the second embodiment of the present invention.
圖2B由左至右依序為本創作第二實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 2B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the second embodiment, which are sequentially composed from left to right.
圖3A為本創作第三實施例之光學成像透鏡組示意圖。 Fig. 3A is a schematic view showing the optical imaging lens unit of the third embodiment of the present invention.
圖3B由左至右依序為本創作第三實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 3B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the third embodiment, which are sequentially composed from left to right.
圖4A為本創作第四實施例之光學成像透鏡組示意圖。 4A is a schematic view of the optical imaging lens unit of the fourth embodiment of the present invention.
圖4B由左至右依序為本創作第四實施例之縱向球差圖、像散像差圖及畸變像差圖。 4B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the fourth embodiment, which are sequentially composed from left to right.
圖5A為本創作第五實施例之光學成像透鏡組示意圖。 Fig. 5A is a schematic view showing the optical imaging lens unit of the fifth embodiment of the present invention.
圖5B由左至右依序為本創作第五實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 5B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the fifth embodiment, which are sequentially composed from left to right.
圖6A為本創作第六實施例之光學成像透鏡組示意圖。 Fig. 6A is a schematic view showing the optical imaging lens unit of the sixth embodiment of the present invention.
圖6B由左至右依序為本創作第六實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 6B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the sixth embodiment, which are sequentially composed from left to right.
圖7A為本創作第七實施例之光學成像透鏡組示意圖。 Fig. 7A is a schematic view showing the optical imaging lens unit of the seventh embodiment of the present invention.
圖7B由左至右依序為本創作第七實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 7B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the seventh embodiment, which are sequentially composed from left to right.
圖8A為本創作第八實施例之光學成像透鏡組示意圖。 Fig. 8A is a schematic view showing the optical imaging lens unit of the eighth embodiment of the present invention.
圖8B由左至右依序為本創作第八實施例之縱向球差圖、像散像差圖及畸變像差圖。 FIG. 8B is a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the eighth embodiment, which are sequentially composed from left to right.
本創作提供一種光學成像透鏡組,由物側至像側依序包含具有負屈折力的第一鏡群、光圈及具有正屈折力之第二鏡群。第一鏡群由物側至像側依序包含第一透鏡及第二透鏡,其中,第一透鏡具有負屈折力,其像側面為凹面;第二透鏡具有正屈折力,其物側面為凹面、像側面為凸面,且第二透鏡之物側面及像側面皆為非球面。第二鏡群由物側至像側依序包含第三透鏡、第四透鏡及第五透鏡,其中,第三透鏡具有正屈折力,其物側面及像側面皆為凸面;第四透鏡具有負屈折力,且第四透鏡之物側面的離軸處及像側面為凹面;第五透鏡具有正屈折力,其物側面為凸面;第三透鏡、第四透鏡及第五透鏡之物側面及像側面皆為非球面;此光學成像透鏡組之透鏡總數為五片。 The present invention provides an optical imaging lens group that sequentially includes a first mirror group having a negative refractive power, an aperture, and a second mirror group having a positive refractive power from the object side to the image side. The first lens group sequentially includes a first lens and a second lens from the object side to the image side, wherein the first lens has a negative refractive power and the image side is a concave surface; the second lens has a positive refractive power, and the object side has a concave surface The image side surface is convex, and the object side surface and the image side surface of the second lens are aspherical surfaces. The second lens group sequentially includes a third lens, a fourth lens and a fifth lens from the object side to the image side, wherein the third lens has a positive refractive power, and both the object side surface and the image side surface are convex surfaces; the fourth lens has a negative a refractive power, and the off-axis and image side surfaces of the object side of the fourth lens are concave; the fifth lens has a positive refractive power, the object side surface is a convex surface; and the third lens, the fourth lens, and the fifth lens object side and image The sides are all aspherical; the total number of lenses of this optical imaging lens group is five.
在以下實施例中,此光學成像透鏡組之各透鏡可為玻璃或塑膠材質,而不以實施例所列舉之材質為限。在本創作之實施例中,每一個透鏡皆包含朝向被攝物之一物側面,及朝向成像面之一像側面。每一個物側面及像側面 皆包含靠近光軸處之表面區域(以下稱為近光軸處)及遠離光軸處之表面區域(以下稱為離軸處)。 In the following embodiments, the lenses of the optical imaging lens group may be made of glass or plastic, and are not limited to the materials listed in the embodiments. In the embodiment of the present invention, each of the lenses includes a side facing the object and an image side facing the imaging surface. Side and side of each object Both include a surface area near the optical axis (hereinafter referred to as the near optical axis) and a surface area away from the optical axis (hereinafter referred to as the off-axis).
當所述具有負屈折力之第一鏡群及具有正屈折力之第二鏡群由物側至像側依序配置時,可形成一反遠距成像透鏡組(Retrofocus Lens),提供較長的後焦距(Back Focal Length)。長後焦距使入射光線在到達影像感測元件表面時(例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide Semiconductor,CMOS)等固態成像元件),可以具有較小的入射角,從而提高所述成像元件之中心至邊緣位置的亮度。 When the first mirror group having a negative refractive power and the second mirror group having a positive refractive power are sequentially arranged from the object side to the image side, an anti-distance imaging lens group (Retrofocus Lens) may be formed to provide a longer period. Back Focal Length. The long back focal length allows the incident light to reach the surface of the image sensing element (for example, a solid-state imaging element such as a Charge-Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS)). A smaller angle of incidence, thereby increasing the brightness of the center-to-edge position of the imaging element.
所述第一鏡群的第一透鏡具有負屈折力,其像側面為凹面,用以提高收光範圍,使整個光學成像透鏡組可以具有較大的視場角。第一鏡群及第二鏡群分別包含具有正屈折力之第二透鏡及第三透鏡,做為調節光路的元件,使得入射光在經過第一透鏡形成發散光線後,再依序穿過第二透鏡及第三透鏡,成為較靠近光軸的光束。其中,第一鏡群之第二透鏡的焦距為f2,第二鏡群之第三透鏡的焦距為f3,而整個光學成像透鏡組之有效焦距(Effective Focal Length)為EFL,其滿足以下關係式:1<f3/EFL<1.35 (1);及2.5<f2/EFL<4.5 (2);藉由滿足關係式(1)及(2),所述光學成像透鏡組可以具有良好的成像效果及較大的視場角。其中,若f3/EFL低於式(1)之下限值,則將使場曲像差增大,難以修正;若f3/EFL高於式(1)之上限值時,則所述光學成像透鏡組之成像像高太小。若f2/EFL低於式(2)之下限值或高於式(1)之上限值,則無法有效調整入射光束的路徑。 The first lens of the first mirror group has a negative refractive power, and the image side surface is concave to increase the light receiving range, so that the entire optical imaging lens group can have a larger viewing angle. The first mirror group and the second mirror group respectively comprise a second lens having a positive refractive power and a third lens as an element for adjusting the optical path, so that the incident light passes through the first lens to form a divergent light, and then sequentially passes through the first The two lenses and the third lens become light beams closer to the optical axis. Wherein, the focal length of the second lens of the first mirror group is f2, the focal length of the third lens of the second mirror group is f3, and the effective focal length of the entire optical imaging lens group is EFL, which satisfies the following relationship :1<f3/EFL<1.35 (1); and 2.5<f2/EFL<4.5 (2); by satisfying the relations (1) and (2), the optical imaging lens group can have a good imaging effect and Larger field of view. Wherein, if f3/EFL is lower than the lower limit of the formula (1), the field curvature aberration will be increased and it is difficult to correct; if f3/EFL is higher than the upper limit of the formula (1), the optical The imaging image height of the imaging lens group is too small. If f2/EFL is lower than the lower limit of equation (2) or higher than the upper limit of equation (1), the path of the incident beam cannot be effectively adjusted.
較佳地,所述光學成像透鏡組滿足1<f3/EFL<1.28 (3)。 Preferably, the optical imaging lens group satisfies 1 < f3 / EFL < 1.28 (3).
較佳地,所述光學成像透鏡組滿足3.5<f2/EFL<4.3 (4)。 Preferably, the optical imaging lens group satisfies 3.5 < f2 / EFL < 4.3 (4).
所述第一透鏡物側面及像側面的曲率分別為C1及C2,當所述光學成像透鏡組滿足以下關係式(5)時,可以減少第一透鏡的直徑,有效縮小光學成像透鏡組的體積。 The curvatures of the first lens object side and the image side surface are C1 and C2, respectively. When the optical imaging lens group satisfies the following relation (5), the diameter of the first lens can be reduced, and the volume of the optical imaging lens group can be effectively reduced. .
0.95<(C1+C2)/(C2-C1)<1.15; (5) 0.95<(C1+C2)/(C2-C1)<1.15; (5)
當式(5)低於其下限值時,第一透鏡之物側面過度朝向像側面彎曲,不易接收大角度的入射光線;而當式(5)高於其上限值時,第一透鏡之物側面的曲率變大,將使成像面上的像高縮小。 When the formula (5) is lower than the lower limit value, the object side surface of the first lens is excessively curved toward the image side surface, and it is difficult to receive a large angle of incident light; and when the formula (5) is higher than the upper limit value thereof, the first lens The curvature of the side of the object becomes larger, which will reduce the image height on the image plane.
第一透鏡至第五透鏡之屈折力分別為Φ1至Φ5,及第一透鏡至第五透鏡之折射率分別為Nd1至Nd5,當所述光學成像透鏡組滿足以下關係式(6)時,可以有效修正所述光學成像透鏡組之場曲像差。 The refractive powers of the first to fifth lenses are respectively Φ1 to Φ5, and the refractive indices of the first to fifth lenses are respectively Nd1 to Nd5, and when the optical imaging lens group satisfies the following relation (6), The field curvature aberration of the optical imaging lens group is effectively corrected.
|Φ1/Nd1+Φ2/Nd2+Φ3/Nd3+Φ4/Nd4+Φ5/Nd5|<0.02; (6) |Φ1/Nd1+Φ2/Nd2+Φ3/Nd3+Φ4/Nd4+Φ5/Nd5|<0.02; (6)
第二透鏡物側面及像側面之曲率半徑為R3、R4,當所述光學成像透鏡組滿足以下關係式(7)時,有利於修正場曲像差。 The curvature radius of the side surface and the image side surface of the second lens object is R3 and R4, and when the optical imaging lens group satisfies the following relational expression (7), it is advantageous to correct the field curvature aberration.
0.3<R4/R3<0.5; (7) 0.3<R4/R3<0.5; (7)
第一透鏡像側面至第二透鏡物側面於光軸上的距離為AT1,第二透鏡像側面至第三透鏡物側面於光軸上的距離為AT2,當所述光學成像透鏡組滿足以下關係式(8)時,可以有效控制所述光學成像透鏡組之球面像差、彗差及場曲像差。 The distance from the side of the first lens image to the side of the second lens object on the optical axis is AT1, and the distance from the side of the second lens image to the side of the third lens object on the optical axis is AT2, when the optical imaging lens group satisfies the following relationship In the case of the formula (8), the spherical aberration, coma, and field curvature of the optical imaging lens group can be effectively controlled.
0.6<AT2/AT1<2.0; (8) 0.6<AT2/AT1<2.0; (8)
此外,第三透鏡像側面至第四透鏡物側面於光軸上的距離為AT3,第四透鏡像側面至第五透鏡物側面於光軸上的距離為AT4,當所述光學成像透鏡組滿足以下關係式(9)時,可以有效修正所述光學成像透鏡組之色像差。 Further, the distance from the side of the third lens image to the side of the fourth lens object on the optical axis is AT3, and the distance from the side of the fourth lens image side to the side of the fifth lens object on the optical axis is AT4, when the optical imaging lens group satisfies In the following relation (9), the chromatic aberration of the optical imaging lens group can be effectively corrected.
2.5<AT2/(AT3+AT4)<5.0; (9) 2.5<AT2/(AT3+AT4)<5.0; (9)
第四透鏡及第五透鏡之折射率分別為Nd4、Nd5,且第四透鏡及第五透鏡之色散係數分別為Vd4、Vd5,當所述光學成像透鏡組滿足以下關係式(10)時,可以有效修正所述光學成像透鏡組之色像差。 The refractive indices of the fourth lens and the fifth lens are respectively Nd4 and Nd5, and the dispersion coefficients of the fourth lens and the fifth lens are Vd4 and Vd5, respectively. When the optical imaging lens group satisfies the following relation (10), The chromatic aberration of the optical imaging lens group is effectively corrected.
Nd4>Nd5;及Vd4<Vd5; (10) Nd4>Nd5; and Vd4<Vd5; (10)
進一步地說,當所述光學成像透鏡組滿足以下關係式(11)時,可使所述光學成像透鏡組之色像差得到良好的修正。 Further, when the optical imaging lens group satisfies the following relation (11), the chromatic aberration of the optical imaging lens group can be corrected well.
Vd4<30;及Vd5>55; (11) Vd4<30; and Vd5>55; (11)
第三透鏡物側面及像側面之曲率半徑為R5、R6,當所述光學成像透鏡組滿足以下關係式(12)時,有利於使第三透鏡的主平面(Principal Plane)往像側面偏移,有助於擴大視場角。 The radius of curvature of the side surface and the image side surface of the third lens is R5 and R6. When the optical imaging lens group satisfies the following relation (12), it is advantageous to shift the principal plane of the third lens toward the image side. To help expand the field of view.
-0.95<R6/R5<-0.7; (12) -0.95<R6/R5<-0.7; (12)
第一透鏡之焦距為f1,當所述光學成像透鏡組滿足以下關係式(13)時,可使第一透鏡提供較合適的負屈折力。 The focal length of the first lens is f1, and when the optical imaging lens group satisfies the following relation (13), the first lens can be provided with a suitable negative refractive power.
-1.3<f1/EFL<-1.0; (13) -1.3<f1/EFL<-1.0; (13)
所述光學成像透鏡組在成像面17上之最大像高(Image Height)為ImgH(最大像高定義為影像感測元件有效感測區域對角線之一半),而第一透鏡物側面至光學成像透鏡組之成像面在光軸上的距離為TTL,當所述光學成像透鏡組滿足以下關係式(14)時,可達到光學成像透鏡組小型化的目的。 The maximum image height of the optical imaging lens group on the imaging surface 17 is ImgH (the maximum image height is defined as one half of the diagonal of the effective sensing region of the image sensing element), and the first lens side to the optical The distance of the imaging surface of the imaging lens group on the optical axis is TTL, and when the optical imaging lens group satisfies the following relation (14), the purpose of miniaturization of the optical imaging lens group can be achieved.
5.2<TTL/ImgH<5.7; (14) 5.2<TTL/ImgH<5.7; (14)
參見圖1A及圖1B,圖1A為本創作第一實施例之光學成像透鏡組之示意圖。圖1B由左至右依序為本創作第一實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 1A and 1B, FIG. 1A is a schematic view showing the optical imaging lens unit of the first embodiment. FIG. 1B is a longitudinal Spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the first embodiment in this order from left to right.
如圖1A所示,第一實施例之光學成像透鏡組10包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡11及第二透鏡12,第二鏡群G2由物側至像側依序包含第三透鏡13、第四透鏡14及第五透鏡15。第一實施例之光學成像透鏡組10更可包含濾光元件16以及成像面17,其中,濾光元件16設置於第五透鏡15和成像面17之間。影像感測元件100可設置於成像面17上,與光學成像透鏡組10構成一成像裝置(未另標號)。 As shown in FIG. 1A, the optical imaging lens group 10 of the first embodiment includes a first mirror group G1 having a negative refractive power, an aperture ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 11 and a second lens 12, and the second mirror group G2 sequentially includes a third lens 13, a fourth lens 14, and a fifth lens 15 from the object side to the image side. The optical imaging lens group 10 of the first embodiment may further include a filter element 16 and an imaging surface 17, wherein the filter element 16 is disposed between the fifth lens 15 and the imaging surface 17. The image sensing element 100 can be disposed on the imaging surface 17 to form an imaging device (not otherwise labeled) with the optical imaging lens group 10.
第一透鏡11具有負屈折力,其物側面11a為平面,其像側面11b為凹面,且像側面11b為球面,其材質為玻璃。 The first lens 11 has a negative refractive power, and the object side surface 11a is a flat surface, the image side surface 11b is a concave surface, and the image side surface 11b is a spherical surface, and the material thereof is glass.
第二透鏡12具有正屈折力,其物側面12a為凹面,其像側面12b為凸面,且皆為非球面,其材質為塑膠。 The second lens 12 has a positive refractive power, and the object side surface 12a is a concave surface, and the image side surface 12b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
第三透鏡13具有正屈折力,其物側面13a為凸面,其像側面13b為凸面,且皆為非球面,其材質為玻璃。 The third lens 13 has a positive refractive power, and the object side surface 13a is a convex surface, and the image side surface 13b is a convex surface, and both are aspherical surfaces, and the material thereof is glass.
第四透鏡14具有負屈折力,其物側面14a於近光軸處為凸面、於離軸處為凹面,其像側面14b為凹面,且物側面14a及像側面14b皆為非球面,其材質為塑膠。 The fourth lens 14 has a negative refractive power, and the object side surface 14a is convex at the near optical axis, concave at the off-axis, and the image side surface 14b is concave, and the object side surface 14a and the image side surface 14b are aspherical surfaces. For plastic.
第五透鏡15具有正屈折力,其物側面15a為凸面,其像側面15b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 15 has a positive refractive power, and the object side surface 15a is a convex surface, and the image side surface 15b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
濾光元件16設置於第五透鏡15及成像面17之間,其二表面16a、16b皆為平面,其材質為玻璃。濾光元件16例如是一紅外線濾除元件(IR Filter)。 The filter element 16 is disposed between the fifth lens 15 and the imaging surface 17, and both surfaces 16a and 16b are flat and made of glass. The filter element 16 is, for example, an IR filter.
影像感測元件100例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing device 100 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
上述各個非球面之曲線方程式表示如下:
其中,X:非球面上距離光軸為Y的點與非球面於光軸上之切面間的距離;Y:非球面上的點與光軸間之垂直距離;R:透鏡於近光軸處的曲率半徑;K:錐面係數;以及Ai:第i階非球面係數。 Where X is the distance between the point on the aspheric surface from the optical axis Y and the aspheric surface on the optical axis; Y: the vertical distance between the point on the aspheric surface and the optical axis; R: the lens at the near optical axis Curvature radius; K: cone coefficient; and Ai: i-th order aspheric coefficient.
第一實施例之光學成像透鏡組10之有效焦距為EFL,光圈值(F-number)為Fno,第一透鏡11之物側面至成像面17於光軸I上之距離(Total Track Length)為TTL,整體光學成像透鏡組最大視角之一半為HFOV(Half Field of View),在成像面17上影像感測元件100有效感測區域對角線之一半為最大像高ImgH(Image Height),其數值如下:EFL=4.55mm,Fno=2.08,TTL=20.98mm,HFOV=53.2度,ImgH=3.692mm。 The effective focal length of the optical imaging lens group 10 of the first embodiment is EFL, the aperture value (F-number) is Fno, and the distance from the object side of the first lens 11 to the imaging surface 17 on the optical axis I (Total Track Length) is TTL, one of the maximum viewing angles of the overall optical imaging lens group is HFOV (Half Field of View), and one half of the diagonal of the effective sensing area of the image sensing element 100 on the imaging surface 17 is the maximum image height ImgH (Image Height). The values are as follows: EFL = 4.55 mm, Fno = 2.08, TTL = 20.98 mm, HFOV = 53.2 degrees, and ImgH = 3.692 mm.
第一實施例之光學成像透鏡組10中,第二透鏡12之焦距為f2,第三透鏡13之焦距為f3,其關係式為:f2/EFL=4.18,及f3/EFL=1.167。 In the optical imaging lens group 10 of the first embodiment, the focal length of the second lens 12 is f2, and the focal length of the third lens 13 is f3, and the relationship is f2/EFL = 4.18, and f3/EFL = 1.167.
第一實施例之光學成像透鏡組10中,第一透鏡11之物側面11a的曲率為C1,像側面11b的曲率為C2,其關係式為:(C1+C2)/(C2-C1)=1。 In the optical imaging lens group 10 of the first embodiment, the curvature of the object side surface 11a of the first lens 11 is C1, and the curvature of the image side surface 11b is C2, and the relationship is: (C1+C2)/(C2-C1)= 1.
第一實施例之光學成像透鏡組10中,第一透鏡11之屈折力為Φ1、第二透鏡12之屈折力為Φ2、第三透鏡13之屈折力為Φ3、第四透鏡14之屈折力為Φ4、第五透鏡15之屈折力為Φ5,且第一透鏡11之折射率為Nd1、第二透鏡12之折射率為Nd2、第三透鏡13之折射率為Nd3、第四透鏡14之折射率為Nd4、第五透鏡15之折射率為Nd5,其關係式為:Φ1/Nd1+Φ2/Nd2+Φ3/Nd3+Φ4/Nd4+Φ5/Nd5=0.0014。 In the optical imaging lens group 10 of the first embodiment, the refractive power of the first lens 11 is Φ1, the refractive power of the second lens 12 is Φ2, the refractive power of the third lens 13 is Φ3, and the refractive power of the fourth lens 14 is Φ4, the refractive power of the fifth lens 15 is Φ5, and the refractive index of the first lens 11 is Nd1, the refractive index of the second lens 12 is Nd2, the refractive index of the third lens 13 is Nd3, and the refractive index of the fourth lens 14 The refractive index of Nd4 and fifth lens 15 is Nd5, and the relationship is: Φ1/Nd1+Φ2/Nd2+Φ3/Nd3+Φ4/Nd4+Φ5/Nd5=0.0014.
第一實施例之光學成像透鏡組10中,第二透鏡12之物側面12a的曲率半徑為R3,像側面12b的曲率半徑為R4,其關係式為:R4/R3=0.432。 In the optical imaging lens group 10 of the first embodiment, the radius of curvature of the object side surface 12a of the second lens 12 is R3, and the radius of curvature of the image side surface 12b is R4, and the relationship is: R4/R3 = 0.432.
第一實施例之光學成像透鏡組10中,第一透鏡11之像側面11b至第二透鏡12之物側面12a於光軸I上的距離為AT1,及第二透鏡12之像側面12b至第三透鏡13之物側面13a於光軸I上的距離為AT2,其關係式為:AT2/AT1=1.186。 In the optical imaging lens group 10 of the first embodiment, the distance from the image side surface 11b of the first lens 11 to the object side surface 12a of the second lens 12 on the optical axis I is AT1, and the image side surface 12b of the second lens 12 is the first The distance of the object side surface 13a of the three lens 13 on the optical axis I is AT2, and the relational expression is AT2/AT1=1.186.
第一實施例之光學成像透鏡組10中,第三透鏡13之像側面13b至第四透鏡14之物側面14a於光軸I上的距離為AT3,及第四透鏡14之像側面14b至第五透鏡15之物側面15a於光軸I上的距離為AT4,其關係式為:AT2/(AT3+AT4)=4.306。 In the optical imaging lens group 10 of the first embodiment, the distance from the image side surface 13b of the third lens 13 to the object side surface 14a of the fourth lens 14 on the optical axis I is AT3, and the image side surface 14b of the fourth lens 14 is the first The distance of the object side surface 15a of the five lens 15 on the optical axis I is AT4, and the relational expression is: AT2/(AT3+AT4)=4.306.
第一實施例之光學成像透鏡組10中,第四透鏡14之折射率及色散係數為Nd4、Vd4,及第五透鏡15之折射率及色散係數為Nd5、Vd5,其關係式為:Nd4=1.633,Nd5=1.511;Vd4=23.2,Vd5=57.1。 In the optical imaging lens group 10 of the first embodiment, the refractive index and the dispersion coefficient of the fourth lens 14 are Nd4 and Vd4, and the refractive index and the dispersion coefficient of the fifth lens 15 are Nd5 and Vd5, and the relationship is: Nd4= 1.633, Nd5 = 1.511; Vd4 = 23.2, Vd5 = 57.1.
第一實施例之光學成像透鏡組10中,第三透鏡13之物側面13a的曲率半徑為R5,像側面13b的曲率半徑為R6,其關係式為:R6/R5=-0.769。 In the optical imaging lens group 10 of the first embodiment, the radius of curvature of the object side surface 13a of the third lens 13 is R5, and the radius of curvature of the image side surface 13b is R6, and the relationship is: R6/R5 = -0.769.
第一實施例之光學成像透鏡組10中,第一透鏡11之焦距為f1,其與整個光學成像透鏡組10之有效焦距EFL之間,滿足下列條件:f1/EFL=-1.11。 In the optical imaging lens group 10 of the first embodiment, the focal length of the first lens 11 is f1, and the effective focal length EFL of the entire optical imaging lens group 10 satisfies the following condition: f1/EFL = -1.11.
第一實施例之光學成像透鏡組10中,最大像高ImgH與第一透鏡11之物側面11a至成像面17於光軸I上的距離TTL之間,滿足下列條件:TTL/ImgH=5.683。 In the optical imaging lens group 10 of the first embodiment, the maximum image height ImgH is between the object side surface 11a of the first lens 11 and the distance TTL of the imaging surface 17 on the optical axis I, and the following condition is satisfied: TTL / ImgH = 5.683.
請參見下方表一,其為本創作第一實施例之光學成像透鏡組的詳細光學數據。其中,第一透鏡11之物側面11a標示為表面11a、像側面11b標示為表面11b,其他各透鏡表面則依此類推;表中標示為ASP之表面,例如第二透鏡12之物側面12a,則表示該表面為非球面。表中距離欄位的數值代表該表面至下一表面的距離,例如第一透鏡11之物側面11a至像側面11b之距離為0.7mm,代表第一透鏡11之厚度為0.7mm。第一透鏡11之像側面11b至第二透鏡12之物側面12a之距離為1.608mm。第二透鏡12之像側面12b至光圈ST之距離為0.05mm。其它可依此類推,以下不再重述。 Please refer to Table 1 below, which is the detailed optical data of the optical imaging lens group of the first embodiment. Wherein, the object side surface 11a of the first lens 11 is denoted as the surface 11a, the image side surface 11b is denoted as the surface 11b, and the other lens surfaces are similarly pushed; the surface of the table labeled ASP, for example, the object side surface 12a of the second lens 12, It means that the surface is aspherical. The value of the distance field in the table represents the distance from the surface to the next surface, for example, the distance from the object side surface 11a to the image side surface 11b of the first lens 11 is 0.7 mm, and the thickness of the first lens 11 is 0.7 mm. The distance from the image side surface 11b of the first lens 11 to the object side surface 12a of the second lens 12 is 1.608 mm. The distance from the image side surface 12b of the second lens 12 to the diaphragm ST is 0.05 mm. Others can be deduced by analogy, and will not be repeated below.
請參見表二,其為本創作第一實施例之各透鏡表面的非球面係數。其中,K為非球面曲線方程式中的錐面係數,A4至A10則代表各表面第4階至第10階非球面係數。例如第二透鏡12之物側面12a之錐面係數K為-79.5。其它可依此類推,以下不再重述。此外,以下各實施例的表格係對應至各實施例之光學成像透鏡組,各表格的定義係與本實施例相同,故在以下實施例中不再加以贅述。 Please refer to Table 2, which is the aspherical coefficient of each lens surface of the first embodiment of the creation. Where K is the cone coefficient in the aspheric curve equation, and A4 to A10 represent the 4th to 10th aspheric coefficients of each surface. For example, the taper coefficient K of the object side surface 12a of the second lens 12 is -79.5. Others can be deduced by analogy, and will not be repeated below. In addition, the tables of the following embodiments correspond to the optical imaging lens groups of the respective embodiments, and the definitions of the respective tables are the same as those of the present embodiment, and therefore will not be further described in the following embodiments.
參見圖2A及圖2B,圖2A為本創作第二實施例之光學成像透鏡組之示意圖。圖2B由左至右依序為本創作第二實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 2A and 2B, FIG. 2A is a schematic view of the optical imaging lens unit of the second embodiment. 2B is a longitudinal spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the second embodiment.
如圖2A所示,第二實施例之光學成像透鏡組20包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡21及第二透鏡22,第二鏡群G2由物側至像側依序包含第三透鏡23、第四透鏡24及第五透鏡25。第二實施例之光學成像透鏡組20更可包含濾光元件26以及成像面27,其中,濾光元件26設置於第五透鏡25和 成像面27之間。影像感測元件200可設置於成像面27上,與光學成像透鏡組20構成一成像裝置(未另標號)。 As shown in FIG. 2A, the optical imaging lens group 20 of the second embodiment includes a first mirror group G1 having a negative refractive power, a diaphragm ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 21 and a second lens 22, and the second mirror group G2 sequentially includes a third lens 23, a fourth lens 24, and a fifth lens 25 from the object side to the image side. The optical imaging lens group 20 of the second embodiment may further include a filter element 26 and an imaging surface 27, wherein the filter element 26 is disposed on the fifth lens 25 and Between the imaging faces 27. The image sensing element 200 can be disposed on the imaging surface 27 to form an imaging device (not otherwise labeled) with the optical imaging lens group 20.
第一透鏡21具有負屈折力,其物側面21a為平面,其像側面21b為凹面,且像側面21b為球面,其材質為玻璃。 The first lens 21 has a negative refractive power, and the object side surface 21a is a flat surface, the image side surface 21b is a concave surface, and the image side surface 21b is a spherical surface, and the material thereof is glass.
第二透鏡22具有正屈折力,其物側面22a為凹面,其像側面22b為凸面,且皆為非球面,其材質為塑膠。 The second lens 22 has a positive refractive power, and the object side surface 22a is a concave surface, and the image side surface 22b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
第三透鏡23具有正屈折力,其物側面23a為凸面,其像側面23b為凸面,且皆為非球面,其材質為玻璃。 The third lens 23 has a positive refractive power, and the object side surface 23a is a convex surface, and the image side surface 23b is a convex surface, and both of them are aspherical surfaces, and the material thereof is glass.
第四透鏡24具有負屈折力,其物側面24a於近光軸處為凸面、於離軸處為凹面,其像側面24b為凹面,且物側面24a及像側面24b皆為非球面,其材質為塑膠。 The fourth lens 24 has a negative refractive power, and the object side surface 24a is convex at the near optical axis, concave at the off-axis, and the image side surface 24b is concave, and the object side surface 24a and the image side surface 24b are aspherical surfaces. For plastic.
第五透鏡25具有正屈折力,其物側面25a為凸面,其像側面25b於近光軸處為凹面,於離軸處為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 25 has a positive refractive power, and the object side surface 25a is a convex surface, and the image side surface 25b is concave at the near optical axis, convex at the off-axis, and aspherical, and the material is plastic.
濾光元件26設置於第五透鏡25及成像面27之間,其二表面26a、26b皆為平面,其材質為玻璃。濾光元件26例如是一紅外線濾除元件(IR Filter)。 The filter element 26 is disposed between the fifth lens 25 and the imaging surface 27, and both surfaces 26a and 26b are flat and made of glass. The filter element 26 is, for example, an IR filter.
影像感測元件200例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 200 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第二實施例之光學成像透鏡組20之詳細光學數據及透鏡表面之非球面係數列於表三及表四。在第二實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 20 of the second embodiment and the aspherical coefficients of the lens surface are shown in Tables 3 and 4. In the second embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表三及表四,可計算出表五之數據。表五所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Tables 3 and 4, the data in Table 5 can be calculated. The definitions of the parameters shown in Table 5 are the same as those in the first embodiment, and therefore will not be described herein.
參見圖3A及圖3B,圖3A為本創作第三實施例之光學成像透鏡組之示意圖。圖3B由左至右依序為本創作第三實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 3A and 3B, FIG. 3A is a schematic view of the optical imaging lens unit of the third embodiment. FIG. 3B is a longitudinal Spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the third embodiment.
如圖3A所示,第三實施例之光學成像透鏡組30包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡31及第二透鏡32,第二鏡群G2由物側至像側依序包含第三透鏡33、第四透鏡34及第五透鏡35。第三實施例之光學成像透鏡組30更可包含濾光元件36以及成像面37,其中,濾光元件36設置於第五透鏡35和成像面37之間。影像感測元件300可設置於成像面37上,與光學成像透鏡組30構成一成像裝置(未另標號)。 As shown in FIG. 3A, the optical imaging lens group 30 of the third embodiment includes a first mirror group G1 having a negative refractive power, an aperture ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 31 and a second lens 32, and the second mirror group G2 sequentially includes a third lens 33, a fourth lens 34, and a fifth lens 35 from the object side to the image side. The optical imaging lens group 30 of the third embodiment may further include a filter element 36 and an imaging surface 37, wherein the filter element 36 is disposed between the fifth lens 35 and the imaging surface 37. The image sensing element 300 can be disposed on the imaging surface 37 to form an imaging device (not otherwise labeled) with the optical imaging lens group 30.
第一透鏡31具有負屈折力,其物側面31a為凸面,其像側面31b為凹面,且物側面31a及像側面31b皆為球面,其材質為玻璃。 The first lens 31 has a negative refractive power, and the object side surface 31a is a convex surface, and the image side surface 31b is a concave surface, and both the object side surface 31a and the image side surface 31b are spherical surfaces, and the material thereof is glass.
第二透鏡32具有正屈折力,其物側面32a為凹面,其像側面32b為凸面,且皆為非球面,其材質為塑膠。 The second lens 32 has a positive refractive power, and the object side surface 32a is a concave surface, and the image side surface 32b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
第三透鏡33具有正屈折力,其物側面33a為凸面,其像側面33b為凸面,且皆為非球面,其材質為玻璃。 The third lens 33 has a positive refractive power, and the object side surface 33a is a convex surface, and the image side surface 33b is a convex surface, and both of them are aspherical surfaces, and the material thereof is glass.
第四透鏡34具有負屈折力,其物側面34a於近光軸處為凸面、於離軸處為凹面,其像側面34b為凹面,且物側面34a及像側面34b皆為非球面,其材質為塑膠。 The fourth lens 34 has a negative refractive power, and the object side surface 34a is convex at the near optical axis, concave at the off-axis, and the image side surface 34b is concave, and the object side surface 34a and the image side surface 34b are aspherical surfaces. For plastic.
第五透鏡35具有正屈折力,其物側面35a為凸面,其像側面35b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 35 has a positive refractive power, and the object side surface 35a is a convex surface, and the image side surface 35b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
濾光元件36設置於第五透鏡35及成像面37之間,其二表面36a、36b皆為平面,其材質為玻璃。濾光元件36例如是一紅外線濾除元件(IR Filter)。 The filter element 36 is disposed between the fifth lens 35 and the imaging surface 37, and both surfaces 36a and 36b are flat and made of glass. The filter element 36 is, for example, an IR filter.
影像感測元件300例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 300 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第三實施例之光學成像透鏡組30之詳細光學數據及透鏡表面之非球面係數列於表六及表七。在第三實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 30 of the third embodiment and the aspherical coefficients of the lens surface are shown in Tables 6 and 7. In the third embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表六及表七,可計算出表八之數據。表八所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Tables 6 and 7, the data in Table 8 can be calculated. The definitions of the parameters shown in Table 8 are the same as those in the first embodiment, and therefore will not be described here.
參見圖4A及圖4B,圖4A為本創作第四實施例之光學成像透鏡組之示意圖。圖4B由左至右依序為本創作第四實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 4A and 4B, FIG. 4A is a schematic view of the optical imaging lens unit of the fourth embodiment. 4B is a longitudinal spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the fourth embodiment.
如圖4A所示,第四實施例之光學成像透鏡組40包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡41及第二透鏡42,第二鏡群G2由物側至像側依序包含第三透鏡43、第四透鏡44及第五透鏡45。第四實施例之光學成像透鏡組40更可包含濾光元件46以及成像面47,其中,濾光元件46設置於第五透鏡45和成像面47之間。影像感測元件400可設置於成像面47上,與光學成像透鏡組40構成一成像裝置(未另標號)。 As shown in FIG. 4A, the optical imaging lens group 40 of the fourth embodiment includes a first mirror group G1 having a negative refractive power, an aperture ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 41 and a second lens 42. The second mirror group G2 sequentially includes a third lens 43, a fourth lens 44, and a fifth lens 45 from the object side to the image side. The optical imaging lens group 40 of the fourth embodiment may further include a filter element 46 and an imaging surface 47, wherein the filter element 46 is disposed between the fifth lens 45 and the imaging surface 47. The image sensing element 400 can be disposed on the imaging surface 47 to form an imaging device (not otherwise labeled) with the optical imaging lens group 40.
第一透鏡41具有負屈折力,其物側面41a為平面,其像側面41b為凹面,且像側面41b為球面,其材質為玻璃。 The first lens 41 has a negative refractive power, and the object side surface 41a is a flat surface, the image side surface 41b is a concave surface, and the image side surface 41b is a spherical surface, and the material thereof is glass.
第二透鏡42具有正屈折力,其物側面42a為凹面,其像側面42b為凸面,且皆為非球面,其材質為塑膠。 The second lens 42 has a positive refractive power, and the object side surface 42a is a concave surface, and the image side surface 42b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
第三透鏡43具有正屈折力,其物側面43a為凸面,其像側面43b為凸面,且皆為非球面,其材質為玻璃。 The third lens 43 has a positive refractive power, and the object side surface 43a is a convex surface, and the image side surface 43b is a convex surface, and both of them are aspherical surfaces, and the material thereof is glass.
第四透鏡44具有負屈折力,其物側面44a於近光軸處為凸面、於離軸處為凹面,其像側面44b為凹面,且物側面44a及像側面44b皆為非球面,其材質為塑膠。 The fourth lens 44 has a negative refractive power, and the object side surface 44a is convex at the near optical axis, concave at the off-axis, and the image side surface 44b is concave, and the object side surface 44a and the image side surface 44b are aspherical surfaces. For plastic.
第五透鏡45具有正屈折力,其物側面45a為凸面,其像側面45b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 45 has a positive refractive power, and the object side surface 45a is a convex surface, and the image side surface 45b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
濾光元件46設置於第五透鏡45及成像面47之間,其二表面46a、46b皆為平面,其材質為玻璃。濾光元件46例如是一紅外線濾除元件(IR Filter)。 The filter element 46 is disposed between the fifth lens 45 and the imaging surface 47, and both surfaces 46a and 46b are flat and made of glass. The filter element 46 is, for example, an IR filter.
影像感測元件400例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 400 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第四實施例之光學成像透鏡組40之詳細光學數據及透鏡表面之非球面係數列於表九及表十。在第四實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 40 of the fourth embodiment and the aspherical coefficients of the lens surface are shown in Tables 9 and 10. In the fourth embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表九及表十,可計算出表十一之數據。表十一所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Table 9 and Table 10, the data in Table 11 can be calculated. The definitions of the parameters shown in Table 11 are the same as those in the first embodiment, and therefore will not be described herein.
參見圖5A及圖5B,圖5A為本創作第五實施例之光學成像透鏡組之示意圖。圖5B由左至右依序為本創作第五實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 5A and 5B, FIG. 5A is a schematic view of the optical imaging lens unit of the fifth embodiment. FIG. 5B is a longitudinal Spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the fifth embodiment from left to right.
如圖5A所示,第五實施例之光學成像透鏡組50包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡51及第二透鏡52,第二鏡群G2由物側至像側依序包含第三透鏡53、第四透鏡54及第五透鏡55。第五實施例之光學成像透鏡組50更可包含濾光元件56以及成像面57,其中,濾光元件56設置於第五透鏡55和成像面57之間。影像感測元件500可設置於成像面57上,與光學成像透鏡組50構成一成像裝置(未另標號)。 As shown in FIG. 5A, the optical imaging lens group 50 of the fifth embodiment includes a first mirror group G1 having a negative refractive power, an aperture ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 51 and a second lens 52, and the second mirror group G2 sequentially includes a third lens 53, a fourth lens 54, and a fifth lens 55 from the object side to the image side. The optical imaging lens group 50 of the fifth embodiment may further include a filter element 56 and an imaging surface 57, wherein the filter element 56 is disposed between the fifth lens 55 and the imaging surface 57. The image sensing element 500 can be disposed on the imaging surface 57 to form an imaging device (not otherwise labeled) with the optical imaging lens group 50.
第一透鏡51具有負屈折力,其物側面51a為平面,其像側面51b為凹面,且像側面51b為球面,其材質為玻璃。 The first lens 51 has a negative refractive power, and the object side surface 51a is a flat surface, the image side surface 51b is a concave surface, and the image side surface 51b is a spherical surface, and the material thereof is glass.
第二透鏡52具有正屈折力,其物側面52a為凹面,其像側面52b為凸面,且皆為非球面,其材質為塑膠。 The second lens 52 has a positive refractive power, and the object side surface 52a is a concave surface, and the image side surface 52b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
第三透鏡53具有正屈折力,其物側面53a為凸面,其像側面53b為凸面,且皆為非球面,其材質為玻璃。 The third lens 53 has a positive refractive power, and the object side surface 53a is a convex surface, and the image side surface 53b is a convex surface, and both are aspherical surfaces, and the material thereof is glass.
第四透鏡54具有負屈折力,其物側面54a於近光軸處為凸面、於離軸處為凹面,其像側面54b為凹面,且物側面54a及像側面54b皆為非球面,其材質為塑膠。 The fourth lens 54 has a negative refractive power, and the object side surface 54a is convex at the near optical axis, concave at the off-axis, and the image side surface 54b is concave, and the object side surface 54a and the image side surface 54b are aspherical surfaces. For plastic.
第五透鏡55具有正屈折力,其物側面55a為凸面,其像側面55b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 55 has a positive refractive power, and the object side surface 55a is a convex surface, and the image side surface 55b is a convex surface, and both are aspherical surfaces, and the material thereof is plastic.
濾光元件56設置於第五透鏡55及成像面57之間,其二表面56a、56b皆為平面,其材質為玻璃。濾光元件56例如是一紅外線濾除元件(IR Filter)。 The filter element 56 is disposed between the fifth lens 55 and the imaging surface 57, and both surfaces 56a and 56b are flat and made of glass. The filter element 56 is, for example, an IR filter.
影像感測元件500例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 500 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第五實施例之光學成像透鏡組50之詳細光學數據及透鏡表面之非球面係數列於表十二及表十三。在第五實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 50 of the fifth embodiment and the aspherical coefficients of the lens surface are shown in Table 12 and Table 13. In the fifth embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表十二及表十三,可計算出表十四之數據。表十四所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Table 12 and Table 13, the data in Table 14 can be calculated. The definitions of the parameters shown in Table 14 are the same as those in the first embodiment, and therefore will not be described herein.
參見圖6A及圖6B,圖6A為本創作第六實施例之光學成像透鏡組之示意圖。圖6B由左至右依序為本創作第六實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 6A and 6B, FIG. 6A is a schematic view of the optical imaging lens unit of the sixth embodiment. FIG. 6B is a longitudinal Spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the sixth embodiment from left to right.
如圖6A所示,第六實施例之光學成像透鏡組60包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡61及第二透鏡62,第二鏡群G2由物側至像側依序包含第三透鏡63、第四透鏡64及第五透鏡65。第六實施例之光學成像透鏡組60更可包含濾光元件66以及成像面67,其中,濾光元件66設置於第五透鏡65和成像面67之間。影像感測元件600可設置於成像面67上,與光學成像透鏡組60構成一成像裝置(未另標號)。 As shown in FIG. 6A, the optical imaging lens group 60 of the sixth embodiment includes a first mirror group G1 having a negative refractive power, an aperture ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 61 and a second lens 62, and the second mirror group G2 sequentially includes a third lens 63, a fourth lens 64, and a fifth lens 65 from the object side to the image side. The optical imaging lens group 60 of the sixth embodiment may further include a filter element 66 and an imaging surface 67, wherein the filter element 66 is disposed between the fifth lens 65 and the imaging surface 67. The image sensing element 600 can be disposed on the imaging surface 67 to form an imaging device (not otherwise labeled) with the optical imaging lens group 60.
第一透鏡61具有負屈折力,其物側面61a為平面,其像側面61b為凹面,且像側面61b為球面,其材質為玻璃。 The first lens 61 has a negative refractive power, and the object side surface 61a is a flat surface, the image side surface 61b is a concave surface, and the image side surface 61b is a spherical surface, and the material thereof is glass.
第二透鏡62具有正屈折力,其物側面62a為凹面,其像側面62b為凸面,且皆為非球面,其材質為塑膠。 The second lens 62 has a positive refractive power, and the object side surface 62a is a concave surface, and the image side surface 62b is a convex surface, and both are aspherical surfaces, and the material thereof is plastic.
第三透鏡63具有正屈折力,其物側面63a為凸面,其像側面63b為凸面,且皆為非球面,其材質為玻璃。 The third lens 63 has a positive refractive power, and the object side surface 63a is a convex surface, and the image side surface 63b is a convex surface, and both are aspherical surfaces, and the material thereof is glass.
第四透鏡64具有負屈折力,其物側面64a於近光軸處為凸面、於離軸處為凹面,其像側面64b為凹面,且物側面64a及像側面64b皆為非球面,其材質為塑膠。 The fourth lens 64 has a negative refractive power, and the object side surface 64a is convex at the near optical axis, concave at the off-axis, and the image side surface 64b is concave, and the object side surface 64a and the image side surface 64b are aspherical surfaces. For plastic.
第五透鏡65具有正屈折力,其物側面65a為凸面,其像側面65b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 65 has a positive refractive power, and the object side surface 65a is a convex surface, and the image side surface 65b is a convex surface, and both are aspherical surfaces, and the material thereof is plastic.
濾光元件66設置於第五透鏡65及成像面67之間,其二表面66a、66b皆為平面,其材質為玻璃。濾光元件66例如是一紅外線濾除元件(IR Filter)。 The filter element 66 is disposed between the fifth lens 65 and the imaging surface 67, and both surfaces 66a and 66b are flat and made of glass. The filter element 66 is, for example, an IR filter.
影像感測元件600例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 600 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第六實施例之光學成像透鏡組60之詳細光學數據及透鏡表面之非球面係數列於表十五及表十六。在第六實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 60 of the sixth embodiment and the aspherical coefficients of the lens surface are shown in Tables 15 and 16. In the sixth embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表十五及表十六,可計算出表十七之數據。表十七所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Table 15 and Table 16, the data in Table 17 can be calculated. The definition of each parameter shown in Table 17 is the same as that of the first embodiment, and therefore will not be described herein.
參見圖7A及圖7B,圖7A為本創作第七實施例之光學成像透鏡組之示意圖。圖7B由左至右依序為本創作第七實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 Referring to FIG. 7A and FIG. 7B, FIG. 7A is a schematic view showing the optical imaging lens unit of the seventh embodiment. FIG. 7B is a longitudinal Spherical Aberration, an Astigmatism, and a Distortion of the seventh embodiment of the present invention from left to right.
如圖7A所示,第七實施例之光學成像透鏡組70包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡71及第二透鏡72,第二鏡群G2由物側至像側依序包含第三透鏡73、第四透鏡74及第五透鏡75。第七實施例之光學成像透鏡組70更可包含濾光元件76以及成像面77,其中,濾光元件76設置於第五透鏡75和成像面77之間。影像感測元件700可設置於成像面77上,與光學成像透鏡組70構成一成像裝置(未另標號)。 As shown in FIG. 7A, the optical imaging lens group 70 of the seventh embodiment includes a first mirror group G1 having a negative refractive power, a diaphragm ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 71 and a second lens 72, and the second mirror group G2 sequentially includes a third lens 73, a fourth lens 74, and a fifth lens 75 from the object side to the image side. The optical imaging lens group 70 of the seventh embodiment may further include a filter element 76 and an imaging surface 77, wherein the filter element 76 is disposed between the fifth lens 75 and the imaging surface 77. The image sensing element 700 can be disposed on the imaging surface 77 to form an imaging device (not otherwise labeled) with the optical imaging lens assembly 70.
第一透鏡71具有負屈折力,其物側面71a為平面,其像側面71b為凹面,且像側面71b為球面,其材質為玻璃。 The first lens 71 has a negative refractive power, and the object side surface 71a is a flat surface, the image side surface 71b is a concave surface, and the image side surface 71b is a spherical surface, and the material is glass.
第二透鏡72具有正屈折力,其物側面72a為凹面,其像側面72b為凸面,且皆為非球面,其材質為塑膠。 The second lens 72 has a positive refractive power, and the object side surface 72a is a concave surface, and the image side surface 72b is a convex surface, and both are aspherical surfaces, and the material thereof is plastic.
第三透鏡73具有正屈折力,其物側面73a為凸面,其像側面73b為凸面,且皆為非球面,其材質為玻璃。 The third lens 73 has a positive refractive power, and the object side surface 73a is a convex surface, and the image side surface 73b is a convex surface, and both of them are aspherical surfaces, and the material thereof is glass.
第四透鏡74具有負屈折力,其物側面74a於近光軸處為凸面、於離軸處為凹面,其像側面74b為凹面,且物側面74a及像側面74b皆為非球面,其材質為塑膠。 The fourth lens 74 has a negative refractive power, and the object side surface 74a is convex at the near optical axis, concave at the off-axis, and the image side surface 74b is concave, and the object side surface 74a and the image side surface 74b are aspherical surfaces. For plastic.
第五透鏡75具有正屈折力,其物側面75a為凸面,其像側面75b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 75 has a positive refractive power, and the object side surface 75a is a convex surface, and the image side surface 75b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
濾光元件76設置於第五透鏡75及成像面77之間,其二表面76a、76b皆為平面,其材質為玻璃。濾光元件76例如是一紅外線濾除元件(IR Filter)。 The filter element 76 is disposed between the fifth lens 75 and the imaging surface 77, and both surfaces 76a and 76b are flat and made of glass. The filter element 76 is, for example, an IR filter.
影像感測元件700例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 700 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第七實施例之光學成像透鏡組70之詳細光學數據及透鏡表面之非球面係數列於表十八及表十九。在第七實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 70 of the seventh embodiment and the aspherical coefficients of the lens surface are shown in Tables 18 and 19. In the seventh embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表十八及表十九,可計算出表二十之數據。表二十所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Table 18 and Table 19, the data of Table 20 can be calculated. The definitions of the parameters shown in Table 20 are the same as those in the first embodiment, and therefore will not be described herein.
參見圖8A及圖8B,圖8A為本創作第八實施例之光學成像透鏡組之示意圖。圖8B由左至右依序為本創作第八實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散像差圖(Astigmatism)及畸變像差圖(Distortion)。 8A and 8B, FIG. 8A is a schematic view of the optical imaging lens unit of the eighth embodiment. FIG. 8B is a longitudinal Spherical Aberration, an astigmatic aberration diagram, and a distortion aberration diagram of the eighth embodiment from left to right.
如圖8A所示,第八實施例之光學成像透鏡組80包含具有負屈折力之第一鏡群G1、光圈ST及具有正屈折力之第二鏡群G2,其中,第一鏡群G1由物側至像側依序包含第一透鏡81及第二透鏡82,第二鏡群G2由物側至像側依序包含第三透鏡83、第四透鏡84及第五透鏡85。第八實施例之光學成像透鏡組80更可包含濾光元件86以及成像面87,其中,濾光元件86設置於第五透鏡85和成像面87之間。影像感測元件800可設置於成像面87上,與光學成像透鏡組80構成一成像裝置(未另標號)。 As shown in FIG. 8A, the optical imaging lens group 80 of the eighth embodiment includes a first mirror group G1 having a negative refractive power, an aperture ST, and a second mirror group G2 having a positive refractive power, wherein the first mirror group G1 is composed of The object side to the image side sequentially include a first lens 81 and a second lens 82, and the second mirror group G2 sequentially includes a third lens 83, a fourth lens 84, and a fifth lens 85 from the object side to the image side. The optical imaging lens group 80 of the eighth embodiment may further include a filter element 86 and an imaging surface 87, wherein the filter element 86 is disposed between the fifth lens 85 and the imaging surface 87. The image sensing element 800 can be disposed on the imaging surface 87 to form an imaging device (not otherwise labeled) with the optical imaging lens group 80.
第一透鏡81具有負屈折力,其物側面81a為平面,其像側面81b為凹面,且像側面81b為球面,其材質為玻璃。 The first lens 81 has a negative refractive power, and the object side surface 81a is a flat surface, the image side surface 81b is a concave surface, and the image side surface 81b is a spherical surface, and the material is glass.
第二透鏡82具有正屈折力,其物側面82a為凹面,其像側面82b為凸面,且皆為非球面,其材質為塑膠。 The second lens 82 has a positive refractive power, and the object side surface 82a is a concave surface, and the image side surface 82b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
第三透鏡83具有正屈折力,其物側面83a為凸面,其像側面83b為凸面,且皆為非球面,其材質為玻璃。 The third lens 83 has a positive refractive power, and the object side surface 83a is a convex surface, and the image side surface 83b is a convex surface, and both of them are aspherical surfaces, and the material thereof is glass.
第四透鏡84具有負屈折力,其物側面84a為凹面,其像側面84b於近光軸處及離軸處皆為凹面,且物側面84a及像側面84b皆為非球面,其材質為塑膠。 The fourth lens 84 has a negative refractive power, and the object side surface 84a is a concave surface. The image side surface 84b is concave at both the low beam axis and the off-axis, and the object side surface 84a and the image side surface 84b are aspherical surfaces, and the material is plastic. .
第五透鏡85具有正屈折力,其物側面85a為凸面,其像側面85b為凸面,且皆為非球面,其材質為塑膠。 The fifth lens 85 has a positive refractive power, and the object side surface 85a is a convex surface, and the image side surface 85b is a convex surface, and both of them are aspherical surfaces, and the material thereof is plastic.
濾光元件86設置於第五透鏡85及成像面87之間,其二表面86a、86b皆為平面,其材質為玻璃。濾光元件86例如是一紅外線濾除元件(IR Filter)。 The filter element 86 is disposed between the fifth lens 85 and the imaging surface 87, and both surfaces 86a and 86b are flat and made of glass. The filter element 86 is, for example, an IR filter.
影像感測元件800例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。 The image sensing element 800 is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor.
第八實施例之光學成像透鏡組80之詳細光學數據及透鏡表面之非球面係數列於表二十一及表二十二。在第八實施例中,非球面之曲線方程式表示如第一實施例的形式。 The detailed optical data of the optical imaging lens group 80 of the eighth embodiment and the aspherical coefficients of the lens surface are shown in Table 21 and Table 22. In the eighth embodiment, the aspherical curve equation represents the form as in the first embodiment.
根據表二十一及表二十二,可計算出表二十三之數據。表二十三所示各參數之定義係與第一實施例相同,故此處不加以贅述。 According to Table 21 and Table 22, the data in Table 23 can be calculated. The definitions of the parameters shown in Table XXIII are the same as those of the first embodiment, and therefore will not be described herein.
本創作第九實施例為一成像裝置,此成像裝置包含如前述實施例之光學成像透鏡組,以及一影像感測元件。影像感測元件例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal-Oxide-Semiconductor,CMOS)等構成之影像感測元件(Image Sensor)。此成像裝置例如是車用攝影裝置、可攜式電子產品攝影裝置,或監控攝影機等。 The ninth embodiment of the present invention is an image forming apparatus comprising the optical imaging lens group as in the foregoing embodiment, and an image sensing element. The image sensing element is, for example, an image sensor (Charge-Coupled Device, CCD) or a complementary metal-oxide-semiconductor (CMOS) image sensor. The image forming apparatus is, for example, a vehicle photographing device, a portable electronic product photographing device, or a surveillance camera or the like.
雖然本創作使用前述數個實施例加以說明,然而該些實施例並非用以限制本創作之範圍。對任何熟知此項技藝者而言,在不脫離本創作之精神與範圍內,仍可以參照本創作所揭露的實施例內容進行形式上和細節上的多種變化。是故,此處需明白的是,本創作係以下列申請專利範圍所界定者為準,任何在申請專利範圍內或其等效的範圍內所作的各種變化,仍應落入本創作之申請專利範圍之內。 Although the present invention has been described using the foregoing embodiments, these embodiments are not intended to limit the scope of the present invention. Various changes in form and detail may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, it should be understood that the creation is subject to the definition of the following patent application, and any changes made within the scope of the patent application or its equivalent should still fall into the application for this creation. Within the scope of the patent.
Claims (17)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI706184B (en) * | 2019-11-21 | 2020-10-01 | 大陸商玉晶光電(廈門)有限公司 | Optical imaging lens |
TWI792202B (en) * | 2021-02-26 | 2023-02-11 | 大陸商信泰光學(深圳)有限公司 | Lens assembly |
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2019
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI706184B (en) * | 2019-11-21 | 2020-10-01 | 大陸商玉晶光電(廈門)有限公司 | Optical imaging lens |
TWI792202B (en) * | 2021-02-26 | 2023-02-11 | 大陸商信泰光學(深圳)有限公司 | Lens assembly |
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