TWI644123B - Zoom lens - Google Patents

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Publication number
TWI644123B
TWI644123B TW106143772A TW106143772A TWI644123B TW I644123 B TWI644123 B TW I644123B TW 106143772 A TW106143772 A TW 106143772A TW 106143772 A TW106143772 A TW 106143772A TW I644123 B TWI644123 B TW I644123B
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Taiwan
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lens
cemented
negative
lenticular
aperture
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TW106143772A
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Chinese (zh)
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TW201928440A (en
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吳昇澈
周昱宏
黃威豪
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上暘光學股份有限公司
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Abstract

一種變焦鏡頭,包含:一第一透鏡群,其進行對焦,並包括單一個透鏡且為負透鏡,該單一個透鏡之阿貝數係設定為Vd、折射率係設定為Nd,其中23Vd50、1.5Nd1.9所構成;以及至少一第二透鏡群,其進行變焦,並包括一正透鏡與一負透鏡之組合,且正透鏡與負透鏡之組合係位於第一透鏡群之單一個透鏡的後方。本發明藉由單一個透鏡之阿貝數及折射率的光學匹配,可兼顧材料特性及對焦效果的較佳化,且第一透鏡群僅單一個透鏡而製作容易,可有效降低生產成本,並配合第二透鏡群之玻璃非球面透鏡之有效半徑及最大像高的匹配,在一定匹配範圍內,亦穩定投影成像品質。 A zoom lens includes: a first lens group that focuses, and includes a single lens and is a negative lens, the Abbe number of the single lens is set to Vd, and the refractive index is set to Nd, wherein 23 Vd 50, 1.5 Nd 1.9; and at least a second lens group that zooms and includes a combination of a positive lens and a negative lens, and the combination of the positive lens and the negative lens is located behind a single lens of the first lens group. The optical matching of the Abbe number and the refractive index of a single lens can optimize the material characteristics and the focusing effect, and the first lens group can be easily manufactured by only one lens, thereby effectively reducing the production cost, and In accordance with the matching of the effective radius and the maximum image height of the glass aspherical lens of the second lens group, the projection imaging quality is also stabilized within a certain matching range.

Description

變焦鏡頭 Zoom lens

本發明係有關一種變焦鏡頭,尤指一種藉由第一透鏡群之單一個透鏡之阿貝數及折射率的光學匹配,可兼顧材料特性及對焦效果的較佳化,且單一個透鏡之製作容易,可有效降低生產成本,加上第二透鏡群之玻璃非球面透鏡之有效半徑及最大像高的匹配,在一定匹配範圍內,亦穩定投影成像品質。 The present invention relates to a zoom lens, and more particularly to an optical matching of the Abbe number and the refractive index of a single lens of the first lens group, which can achieve both the material characteristics and the focusing effect, and the production of a single lens. It is easy to reduce the production cost, and the effective radius and maximum image height of the glass aspheric lens of the second lens group are matched, and the projection image quality is stabilized within a certain matching range.

按,由於投影裝置之技術已逐漸成熟,其主要元件之一乃為變焦鏡頭,亦使影像能清晰成像,而該變焦鏡頭之技術特徵,係由一靠近投影測之第一透鏡群及一靠近影像源側之第二透鏡群所構成,且該第一透鏡群具有負屈光度,用以發散光線及該第二透鏡群具有正屈光度,用以收斂光線。通常該第一透鏡群及第二透鏡群係分別具有複數個透鏡,如中國台灣專利公告號第I534472號、第I529418號、第I507727號、第I476440號、第I476442號等,其複數透鏡結構相當複雜,而該複數透鏡結構之光學設計,其主要參數為阿貝數(Vd)、折射率(Nd),該阿貝數係評估一個光學系統色散能力好壞的數值,當阿貝數愈小,則色散程度愈大,反之,當阿貝數愈大,則色散愈小;該折射率係當光線經過透鏡後,因光速在不同材料內的行進速度不同,會使光線產生折射現象,且材料之折射率可隨波長而變化稱為色散,兩者之關係皆與色散有關,如此一來,該阿貝數與該折射率之間乃具有光學匹配關係。 According to the technology of the projection device, one of the main components is a zoom lens, which also enables the image to be clearly imaged. The technical feature of the zoom lens is a close proximity to the first lens group and a close proximity to the projection measurement. The second lens group on the image source side is configured, and the first lens group has a negative refracting power for diverging light and the second lens group has positive refracting power for condensing light. Generally, the first lens group and the second lens group respectively have a plurality of lenses, such as Taiwan Patent Publication No. I534472, No. I529418, No. I507727, No. I476440, No. I476442, etc., and the plural lens structure is equivalent. Complex, and the optical design of the complex lens structure, the main parameters are Abbe number (Vd), refractive index (Nd), the Abbe number is to evaluate the value of the dispersion of an optical system, the smaller the Abbe number The greater the degree of dispersion, the smaller the Abbe number, the smaller the dispersion; the refractive index is such that when the light passes through the lens, the speed of light travels in different materials, which causes the light to refract, and The refractive index of a material can be changed with wavelength, which is called dispersion. The relationship between the two is related to dispersion. Thus, the Abbe number has an optical matching relationship with the refractive index.

次按,由於光學科技進步,使投影裝置不僅可用在辦公室進行簡報,也逐漸廣泛應用於家庭進行觀賞視訊、節目,因此,業者為了讓投影裝置便於使用及攜帶,亦朝向縮小投影裝置之鏡頭的體積進行研發,同時,該鏡頭 的體積在縮小時,也能降低製造成本過高的缺點。該投影裝置之鏡頭的體積縮小,使投影裝置之重量輕,亦滿足消費者所期望投影裝置小型化,同時,也滿足業者降低製造成本,但卻影響投影成像品質。 Sub-press, due to the advancement of optical technology, the projection device can be used not only in the office for briefing, but also widely used in home for viewing video and programs. Therefore, in order to make the projection device easy to use and carry, the operator also aims to reduce the lens of the projection device. Volume development, at the same time, the lens When the volume is reduced, the disadvantage of excessive manufacturing cost can also be reduced. The lens of the projection device is reduced in size, which makes the weight of the projection device light, and also meets the miniaturization of the projection device desired by the consumer. At the same time, it also satisfies the manufacturer to reduce the manufacturing cost, but affects the projection imaging quality.

惟查,先前技術之第一透鏡群之複數透鏡結構,並未考量阿貝數及折射率的光學匹配,無法兼顧材料特性及對焦效果,難以成為製作容易之單一個透鏡,無法有效降低生產成本,以及該投影裝置之變焦鏡頭的投影成像品質與製造成本及體積,係取決於複數透鏡結構之光學設計,而如何以複數透鏡結構之光學設計衡平出該投影裝置之鏡頭的投影成像品質與製造成本及體積之間,亦皆為本發明所欲解決的課題。 However, the complex lens structure of the first lens group of the prior art does not consider the optical matching of the Abbe number and the refractive index, and cannot balance the material characteristics and the focusing effect, and it is difficult to become a single lens that is easy to manufacture, and cannot effectively reduce the production cost. And the projection imaging quality and manufacturing cost and volume of the zoom lens of the projection device depend on the optical design of the complex lens structure, and how to balance the projection imaging quality and manufacture of the lens of the projection device with the optical design of the complex lens structure The cost and volume are also the subjects to be solved by the present invention.

本發明之主要目的,提供一種變焦鏡頭,其第一透鏡群之單一個透鏡之阿貝數及折射率的光學匹配之技術特徵,亦可兼顧材料特性及對焦效果,輕能成為製作容易之單一個透鏡,用以解決先前技術之第一透鏡群之複數透鏡結構之問題點,進而有效降低生產成本之功效增進。 The main object of the present invention is to provide a zoom lens, wherein the optical characteristics of the Abbe number and the refractive index of the single lens of the first lens group can also take into consideration the material characteristics and the focusing effect, and the light can be easily manufactured. A lens is used to solve the problem of the complex lens structure of the first lens group of the prior art, thereby effectively reducing the production cost.

本發明之又一目的,提供一種變焦鏡頭,其以第二透鏡群之玻璃非球面透鏡之有效半徑及所形成最大像高的匹配之技術特徵,在一定匹配範圍內,亦穩定投影成像品質之功效增進。 Another object of the present invention is to provide a zoom lens which is stable in projection imaging quality within a certain matching range by using the effective radius of the glass aspheric lens of the second lens group and the matching of the maximum image height formed. Improved efficacy.

為達上述目的,本發明所採用之技術手段,係由投影側至影像源側依序包含:一第一透鏡群,其進行對焦,並包括單一個透鏡且為負透鏡,該單一個透鏡之阿貝數係設定為Vd、折射率係設定為Nd,其中23Vd50、1.5Nd1.9所構成;以及至少一第二透鏡群,其進行變焦,並包括一正透鏡與一負透鏡之組合,且該正透鏡與該負透鏡之組合係位於該第一透鏡群之單一個透鏡的後方。 In order to achieve the above object, the technical means adopted by the present invention comprises, in order from the projection side to the image source side, a first lens group, which performs focusing, and includes a single lens and is a negative lens, the single lens The Abbe number system is set to Vd and the refractive index system is set to Nd, of which 23 Vd 50, 1.5 Nd 1.9; and at least a second lens group that performs zooming, and includes a combination of a positive lens and a negative lens, and the combination of the positive lens and the negative lens is located in a single lens of the first lens group rear.

依據前揭特徵,更可包括一光圈,係位在該第二透鏡群內,且該光圈之焦比係設定為1.8~2.2。 According to the foregoing feature, an aperture may be included, which is located in the second lens group, and the focal length of the aperture is set to 1.8 to 2.2.

依據前揭特徵,該第二透鏡群至少包含一片玻璃非球面透鏡,該玻璃非球面透鏡之有效半徑係設定為SD及所形成最大像高係設定為MAX IMH,且符合0.7<SD/MAX IMH<1.2。 According to the foregoing feature, the second lens group comprises at least one glass aspheric lens, the effective radius of the glass aspheric lens is set to SD and the maximum image height formed is set to MAX IMH, and conforms to 0.7<SD/MAX IMH. <1.2.

依據前揭特徵,該光圈後至少包含該第二透鏡群之三片透鏡。 According to the foregoing feature, the aperture includes at least three lenses of the second lens group.

依據前揭特徵,該變焦鏡頭至少包含該第二透鏡群之兩組膠合透鏡。 According to the foregoing feature, the zoom lens includes at least two sets of cemented lenses of the second lens group.

依據前揭特徵,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、雙凹透鏡之組合成一第二膠合透鏡,並位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為雙凸透鏡、雙凹透鏡之組合成一第三膠合透鏡及該玻璃非球面雙凸透鏡。 According to the foregoing feature, the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a combination of a lenticular lens and a negative lens of the second lens group is a double concave lens; a lens; the two lens groups of the second lens group are respectively a lenticular lens and a double concave lens combined into a second cemented lens, and positioned between the first cemented lens and the aperture; The lens lenses are sequentially combined into a lenticular lens and a biconcave lens to form a third cemented lens and the glass aspherical lenticular lens.

依據前揭特徵,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、雙凹透鏡之組合成一第二膠合透鏡係位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為雙凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面凹凸透鏡。 According to the foregoing feature, the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a combination of a lenticular lens and a negative lens of the second lens group is a double concave lens; a lens; the two lens groups of the second lens group are respectively a lenticular lens, and the combination of the biconcave lenses is a second cemented lens between the first cemented lens and the aperture; three of the second lens groups The lens system is a combination of a biconcave lens and a lenticular lens, respectively, into a third cemented lens and the glass aspherical meniscus lens.

依據前揭特徵,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、凹凸透鏡 係位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為凸凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面凹凸透鏡。 According to the foregoing feature, the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a combination of a lenticular lens and a negative lens of the second lens group is a double concave lens; a lens; the two lens systems of the second lens group are respectively a lenticular lens and a meniscus lens The three lens segments of the second lens group are sequentially combined into a convex-concave lens and a lenticular lens to form a third cemented lens and the glass aspherical meniscus lens.

依據前揭特徵,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、凹凸透鏡係位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為雙凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面雙凸透鏡。 According to the foregoing feature, the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a combination of a lenticular lens and a negative lens of the second lens group is a double concave lens; a lens; the two lens groups of the second lens group are respectively a lenticular lens, and the lenticular lens is positioned between the first cemented lens and the aperture; the three lens systems of the second lens group are sequentially double The concave lens and the lenticular lens are combined into a third cemented lens and the glass aspherical lenticular lens.

藉助上揭技術手段,本發明以該第一透鏡群之單一個透鏡之阿貝數及折射率的光學匹配之技術特徵,不僅可兼顧材料特性及對焦效果,且該單一個透鏡之製作容易,也可有效降低生產成本,與該第二透鏡群之玻璃非球面透鏡之有效半徑及所形成最大像高的匹配之技術特徵,在一定匹配範圍內,亦穩定投影成像品質,乃具有相輔相乘之效果。 By means of the above-mentioned technical means, the invention adopts the technical characteristics of the optical matching of the Abbe number and the refractive index of the single lens of the first lens group, not only can the material characteristics and the focusing effect be balanced, and the single lens is easy to manufacture. The utility model can also effectively reduce the production cost, and the technical characteristics of the matching of the effective radius of the glass aspherical lens of the second lens group and the maximum image height formed, and the stable projection image quality within a certain matching range are complementary phases. Multiply the effect.

10A、10B、10C、10D‧‧‧非遠心變焦鏡頭 10A, 10B, 10C, 10D‧‧‧ non-telecentric zoom lens

L1‧‧‧單一個透鏡 L1‧‧‧ single lens

L2‧‧‧正透鏡 L2‧‧‧ positive lens

L3‧‧‧負透鏡 L3‧‧‧negative lens

L4、L5‧‧‧二片透鏡 L4, L5‧‧‧ two lenses

L6、L7、L8‧‧‧三片透鏡 L6, L7, L8‧‧‧ three lenses

AP‧‧‧光圈 AP‧‧‧ aperture

FS‧‧‧第一透鏡群 FS‧‧‧first lens group

ZM‧‧‧第二透鏡群 ZM‧‧‧second lens group

SD‧‧‧有效半徑 SD‧‧‧ effective radius

MAX IMH‧‧‧最大像高 MAX IMH‧‧‧Maximum image height

CG‧‧‧玻璃蓋板 CG‧‧‧glass cover

IMA‧‧‧成像面 IMA‧‧‧ imaging surface

D1‧‧‧第一移動距離 D1‧‧‧First moving distance

D2‧‧‧第二移動距離 D2‧‧‧Second moving distance

圖1A係本發明第一實施例態樣之透鏡配置示意圖。 Fig. 1A is a schematic view showing the configuration of a lens according to a first embodiment of the present invention.

圖1B係本發明第一實施例態樣之有效半徑與最大像高示意圖。 Fig. 1B is a schematic view showing the effective radius and the maximum image height of the first embodiment of the present invention.

圖1C係本發明第一實施例態樣之對焦及變焦示意圖。 Fig. 1C is a schematic view showing the focusing and zooming of the first embodiment of the present invention.

圖1D係本發明第一實施例態樣之橫向光線扇形圖。 Fig. 1D is a transverse ray sector diagram of a first embodiment of the present invention.

圖1E係本發明第一實施例態樣之場曲和畸變圖。 Fig. 1E is a field curvature and distortion diagram of the first embodiment of the present invention.

圖1F係本發明第一實施例態樣之橫向色差圖。 Fig. 1F is a lateral chromatic aberration diagram of the first embodiment of the present invention.

圖1G係本發明第一實施例態樣之縱向像差圖。 Fig. 1G is a longitudinal aberration diagram of the first embodiment of the present invention.

圖2A係本發明第二實施例態樣之透鏡配置示意圖。 2A is a schematic view showing a lens configuration of a second embodiment of the present invention.

圖2B係本發明第二實施例態樣之有效半徑與最大像高示意圖。 Fig. 2B is a schematic view showing the effective radius and the maximum image height of the second embodiment of the present invention.

圖2C係本發明第二實施例態樣之對焦及變焦示意圖。 2C is a schematic view showing focusing and zooming of a second embodiment of the present invention.

圖2D係本發明第二實施例態樣之橫向光線扇形圖。 Figure 2D is a transverse ray sector diagram of a second embodiment of the present invention.

圖2E係本發明第二實施例態樣之場曲和畸變圖。 Fig. 2E is a field curvature and distortion diagram of a second embodiment of the present invention.

圖2F係本發明第二實施例態樣之橫向色差圖。 Fig. 2F is a lateral chromatic aberration diagram of the second embodiment of the present invention.

圖2G係本發明第二實施例態樣之縱向像差圖。 Fig. 2G is a longitudinal aberration diagram of a second embodiment of the present invention.

圖3A係本發明第三實施例態樣之透鏡配置示意圖。 Fig. 3A is a schematic view showing the configuration of a lens according to a third embodiment of the present invention.

圖3B係本發明第三實施例態樣之有效半徑與最大像高示意圖。 Fig. 3B is a schematic view showing the effective radius and the maximum image height of the third embodiment of the present invention.

圖3C係本發明第三實施例態樣之對焦及變焦示意圖。 Fig. 3C is a schematic view showing the focusing and zooming of the third embodiment of the present invention.

圖3D係本發明第三實施例態樣之橫向光線扇形圖。 Fig. 3D is a transverse ray sector diagram of a third embodiment of the present invention.

圖3E係本發明第三實施例態樣之場曲和畸變圖。 Fig. 3E is a field curvature and distortion diagram of a third embodiment of the present invention.

圖3F係本發明第三實施例態樣之橫向色差圖。 Fig. 3F is a lateral chromatic aberration diagram of the third embodiment of the present invention.

圖3G係本發明第三實施例態樣之縱向像差圖。 Fig. 3G is a longitudinal aberration diagram of a third embodiment of the present invention.

圖4A係本發明第四實施例態樣之透鏡配置示意圖。 4A is a schematic view showing the configuration of a lens according to a fourth embodiment of the present invention.

圖4B係本發明第四實施例態樣之有效半徑與最大像高示意圖。 Fig. 4B is a schematic view showing the effective radius and the maximum image height of the fourth embodiment of the present invention.

圖4C係本發明第四實施例態樣之對焦及變焦示意圖。 4C is a schematic view showing focusing and zooming according to a fourth embodiment of the present invention.

圖4D係本發明第四實施例態樣之橫向光線扇形圖。 Fig. 4D is a transverse ray sector diagram of a fourth embodiment of the present invention.

圖4E係本發明第四實施例態樣之場曲和畸變圖。 Fig. 4E is a field curvature and distortion diagram of a fourth embodiment of the present invention.

圖4F係本發明第四實施例態樣之橫向色差圖。 Fig. 4F is a lateral chromatic aberration diagram of a fourth embodiment of the present invention.

圖4G係本發明第四實施例態樣之縱向像差圖。 Fig. 4G is a longitudinal aberration diagram of a fourth embodiment of the present invention.

首先,請參閱圖1A~圖1G、圖2A~圖2G、圖3A~圖3G、圖4A~圖4G所示,本發明之一種變焦鏡頭,係由投影側至影像源側依序包含:一第一透鏡群(FS),其進行對焦,並包括單一個透鏡(L1)且為負透鏡,該單一個透鏡(L1)之 阿貝數係設定為Vd、折射率係設定為Nd,其中23Vd50、1.5Nd1.9所構成;以及至少一第二透鏡群(ZM),其進行變焦,並包括一正透鏡(L2)與一負透鏡(L3)之組合,且該正透鏡(L2)與該負透鏡(L3)之組合係位於該第一透鏡群(FS)之單一個透鏡(L1)的後方,但不限定於此。 First, referring to FIG. 1A to FIG. 1G, FIG. 2A to FIG. 2G, FIG. 3A to FIG. 3G, and FIG. 4A to FIG. 4G, a zoom lens of the present invention is sequentially included from the projection side to the image source side: a first lens group (FS) that focuses, and includes a single lens (L1) and is a negative lens, the Abbe number of the single lens (L1) is set to Vd, and the refractive index is set to Nd, wherein 23 Vd 50, 1.5 Nd 1.9; and at least a second lens group (ZM) that performs zooming, and includes a combination of a positive lens (L2) and a negative lens (L3), and the positive lens (L2) and the negative lens (L3) The combination is located behind the single lens (L1) of the first lens group (FS), but is not limited thereto.

承上,更可包括一光圈(AP),係位在該第二透鏡群(ZM)內,且該光圈(AP)之焦比係設定為1.8~2.2,本實施例中,該光圈(AP)後至少包含該第二透鏡群(ZM)之三片透鏡(L6、L7、L8);該第二透鏡群(ZM)至少包含一片玻璃非球面透鏡,該玻璃非球面透鏡之有效半徑係設定為SD及所形成最大像高係設定為MAX IMH,且符合0.7<SD/MAX IMH<1.2;該變焦鏡頭至少包含該第二透鏡群(ZM)之兩組膠合透鏡,但不限定於此。此外,該第二透鏡群(ZM)之後方係依序排列一玻璃蓋板(Cover Glass,CG)、及數位微鏡裝置(Digital Micromirror Device,DMD)之成像面(IMA),但不限定於此。 The optical aperture (AP) is further included in the second lens group (ZM), and the focal length of the aperture (AP) is set to 1.8 to 2.2. In this embodiment, the aperture (AP) After that, at least three lenses (L6, L7, L8) of the second lens group (ZM) are included; the second lens group (ZM) includes at least one glass aspheric lens, and the effective radius of the glass aspheric lens is set. The SD and the formed maximum image height system are set to MAX IMH and conform to 0.7<SD/MAX IMH<1.2; the zoom lens includes at least two sets of cemented lenses of the second lens group (ZM), but is not limited thereto. In addition, after the second lens group (ZM), a glass cover (Cover Glass, CG) and an imaging surface (IMA) of a digital micromirror device (DMD) are sequentially arranged, but are not limited thereto. this.

如圖1A及圖1B所示,其為變焦鏡頭之第一實施例態樣,該第一透鏡群(FS)之單一個透鏡(L1)係為凸凹透鏡;該第二透鏡群(ZM)之正透鏡(L2)係為雙凸透鏡與該第二透鏡群(ZM)之負透鏡(L3)係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群(ZM)之二片透鏡(L4、L5)係分別依序為雙凸透鏡、雙凹透鏡之組合成一第二膠合透鏡,並位在該第一膠合透鏡與該光圈(AP)之間;該第二透鏡群(ZM)之三片透鏡(L6、L7、L8)係分別依序為雙凸透鏡、雙凹透鏡之組合成一第三膠合透鏡及該玻璃非球面雙凸透鏡,該玻璃非球面雙凸透鏡之SD為7.0及IHM為8.3。 As shown in FIG. 1A and FIG. 1B, which is a first embodiment of a zoom lens, a single lens (L1) of the first lens group (FS) is a convex-concave lens; and the second lens group (ZM) The positive lens (L2) is a lenticular lens and the negative lens (L3) of the second lens group (ZM) is a combination of a biconcave lens into a first cemented lens; the second lens group (ZM) is a two lens (L4) And L5) are respectively a combination of a lenticular lens and a biconcave lens into a second cemented lens, and positioned between the first cemented lens and the aperture (AP); and the three lenses of the second lens group (ZM) (L6, L7, L8) are a combination of a lenticular lens and a biconcave lens, respectively, into a third cemented lens and the glass aspherical lenticular lens. The glass aspherical lenticular lens has an SD of 7.0 and an IHM of 8.3.

又,在表一,其透鏡(Lens)中列出L1R1、L1R2係分別為該單一個透鏡(L1)之投影側表面、影像源側表面;L2R1係分別為該正透鏡(L2)之投影側表面;L3R1、L3R2係分別為該負透鏡(L3)之投影側表面、影像源側表面; L4R1、L5R1、L5R2係分別為該二片透鏡(L4、L5)之投影側表面、影像源側表面;APRETURE係為光圈(AP);L6R1、L7R1、L7R2、L8R1、L8R2係分別為該三片透鏡(L6、L7、L8)之投影側表面、影像源側表面,並列出各該透鏡之投影側表面、影像源側表面之半徑(Radius)、厚度(Thickness)、阿貝數(Vd)及折射率(Nd)之參數,配合表二,其玻璃非球面透鏡(ASPH)中列出L8R1、L8R2係分別為該玻璃非球面透鏡之投影側表面、影像源側表面,並列出各該玻璃非球面透鏡之Conic、4TH、6TH、8TH、10th、12th、14th及16th。 Further, in Table 1, the lens (Lens) lists L1R1 and L1R2 as the projection side surface and the image source side surface of the single lens (L1), respectively; and the L2R1 system is the projection side of the positive lens (L2). surface; L3R1, L3R2 lines were negative for lens (L3) of the projection side surface, the side surface of the source image; L4R1, L5R1, L5R2 lines were for the two lenses (L4, L 5) of the projection side surface, the image source side The surface of the APRETURE is an aperture (AP); the L6R1, L7R1, L7R2, L8R1, and L8R2 are the projection side surface and the image source side surface of the three lenses (L6, L7, L8), respectively, and the projections of the lenses are listed. The parameters of the radius (Radius), thickness (Thickness), Abbe number (Vd) and refractive index (Nd) of the side surface and the image source side surface are shown in Table 2, and the glass aspherical lens (ASPH) lists L8R1. L8R2 is the projection side surface and the image source side surface of the glass aspherical lens, respectively, and lists the cores, 4TH, 6TH, 8TH, 10th, 12th, 14th and 16th of the glass aspherical lenses.

如圖1C所示,其該第一透鏡群(FS)與該第二透鏡群(ZM)之間具有一第一移動距離(D1);該玻璃非球面透鏡(ASPH)藉由表一及表二形成該玻璃非球面雙凸透鏡,並與該玻璃蓋板(CG)之間具有一第二移動距離(D2),使該第二透鏡群(ZM)係進行變焦與該第一透鏡群(FS)係移動進行對焦,亦形成一非遠心變焦鏡頭10A,配合表三,其變焦(Zoom)中列出該第一移動距離(D1)、第二移動距離(D2)之廣角端(Wide)、望角端(Tele)之參數,但不限定於此。 As shown in FIG. 1C, the first lens group (FS) and the second lens group (ZM) have a first moving distance (D1); the glass aspheric lens (ASPH) is represented by Table 1 and Table Forming the glass aspherical lenticular lens with a second moving distance (D2) between the glass cover (CG), and causing the second lens group (ZM) to zoom and the first lens group (FS) Moving to focus, also forming a non-telecentric zoom lens 10A, in conjunction with Table 3, the zoom distance (D1), the second moving distance (D2) wide end (Wide), The parameter of the telephoto end (Tele), but is not limited to this.

是以,該非遠心變焦鏡頭10A,其以不同波長(0.450、0.480、0.550、0.600、0.630微米)係分別模擬出圖1D之橫向光線扇形圖,其在同一成像面(IMA)呈現不同像高(IMH)(IMA:0.0000mm、1.6600mm、3.3200mm、4.9800mm、6.6400mm、8.3000mm)上,且符號ey、py、ex、px係表示座標軸(最大刻度±50.000微米);圖1E之場曲和畸變圖,其最大視場(Maximum Field)為28.073度;圖1F之橫向色差圖,其最大視場(Maximum Field)為8.3000微米;圖1G之縱向像差圖,其光瞳半徑(Pupil Radius)為4.1425毫米,亦維持良好投影成像品質。 Therefore, the non-telecentric zoom lens 10A simulates the transverse ray fan shape of FIG. 1D at different wavelengths (0.450, 0.480, 0.550, 0.600, 0.630 micrometers), respectively, which exhibit different image heights on the same imaging surface (IMA) ( IMH) (IMA: 0.0000mm, 1.6600mm, 3.3200mm, 4.9800mm, 6.6400mm, 8.3000mm), and the symbols ey, py, ex, px represent the coordinate axis (maximum scale ± 50.000 microns); the field song of Figure 1E And the distortion map, the maximum field of view (28.073 degrees); the lateral chromatic aberration diagram of Figure 1F, the maximum field of view (Maximum Field) is 8.3000 microns; Figure 1G longitudinal aberration diagram, its pupil radius (Pupil Radius ) is 4.1425 mm and also maintains good projection imaging quality.

如圖2A及圖2B所示,其為變焦鏡頭之第二實施例態樣,該第一透鏡群(FS)之單一個透鏡(L1)係為凸凹透鏡;該第二透鏡群(ZM)之正透鏡(L2)係為雙凸透鏡與該第二透鏡群(ZM)之負透鏡(L3)係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群(ZM)之二片透鏡(L4、L5)係分別依序為雙凸透鏡、雙凹透鏡之組合成一第二膠合透鏡係位在該第一膠合透鏡與該光圈(AP)之間;該第二 透鏡群(ZM)之三片透鏡(L6、L7、L8)係分別依序為雙凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面凹凸透鏡,該玻璃非球面凹凸透鏡之SD為6.6及IHM為8.3。 As shown in FIG. 2A and FIG. 2B, which is a second embodiment of the zoom lens, the single lens (L1) of the first lens group (FS) is a convex-concave lens; the second lens group (ZM) The positive lens (L2) is a lenticular lens and the negative lens (L3) of the second lens group (ZM) is a combination of a biconcave lens into a first cemented lens; the second lens group (ZM) is a two lens (L4) And L5) are respectively a combination of a lenticular lens and a biconcave lens to form a second cemented lens between the first cemented lens and the aperture (AP); the second The three lenses (L6, L7, L8) of the lens group (ZM) are respectively a combination of a biconcave lens and a lenticular lens into a third cemented lens and the glass aspherical meniscus lens, and the SD of the glass aspherical meniscus lens is 6.6 and IHM are 8.3.

又,在表四,其透鏡(Lens)中列出L1R1、L1R2係分別為該單一個透鏡(L1)之投影側表面、影像源側表面;L2R1係分別為該正透鏡(L2)之投影側表面;L3R1、L3R2係分別為該負透鏡(L3)之投影側表面、影像源側表面;L4R1、L5R1、L5R2係分別為該二片透鏡(L4、L5)之投影側表面、影像源側表面;APRETURE係為光圈(AP);L6R1、L7R1、L7R2、L8R1、L8R2係為該三片透鏡(L6、L7、L8)之投影側表面、影像源側表面,並列出各該透鏡之投影側表面、影像源側表面之半徑(Radius)、厚度(Thickness)、阿貝數(Vd)及折射率(Nd)之參數,配合表五,其玻璃非球面透鏡(ASPH)中列出L8R1、L8R2係分別為該玻璃非球面透鏡之投影側表面、影像源側表面,並列出各該玻璃非球面透鏡之Conic、4TH、6TH、8TH、10th、12th、14th及16th。 Further, in Table 4, the lenses L1R1 and L1R2 are respectively the projection side surface and the image source side surface of the single lens (L1); the L2R1 system is the projection side of the positive lens (L2). L3R1 and L3R2 are the projection side surface and the image source side surface of the negative lens (L3), respectively; L4R1, L5R1, and L5R2 are the projection side surface and the image source side surface of the two lenses (L4, L5), respectively. ; APRETURE is the aperture (AP); L6R1, L7R1, L7R2, L8R1, L8R2 are the projection side surface of the three lenses (L6, L7, L8), the image source side surface, and the projection side surfaces of each lens are listed. The parameters of the radius (Radius), thickness (Thickness), Abbe number (Vd) and refractive index (Nd) of the image source side surface are shown in Table 5. The glass aspherical lens (ASPH) lists the L8R1 and L8R2 systems. They are the projection side surface and the image source side surface of the glass aspherical lens, respectively, and the Conic, 4TH, 6TH, 8TH, 10th, 12th, 14th, and 16th of each of the glass aspherical lenses are listed.

如圖2C所示,其該第一透鏡群(FS)與該第二透鏡群(ZM)之間具有一第一移動距離(D1);該玻璃非球面透鏡(ASPH)藉由表四及表五形成該玻璃非球面凹凸透鏡,並與該玻璃蓋板(CG)之間具有一第二移動距離(D2),使該第二透鏡群(ZM)係進行變焦與該第一透鏡群(FS)係移動進行對焦,亦形成又一非遠心變焦鏡頭10B,配合表六,其變焦(Zoom)中列出該第一移動距離(D1)、第二移動距離(D2)之廣角端(Wide)、望角端(Tele)之參數,但不限定於此。 As shown in FIG. 2C, the first lens group (FS) and the second lens group (ZM) have a first moving distance (D1); the glass aspheric lens (ASPH) is represented by Table 4 and Table Forming the glass aspherical meniscus lens with a second moving distance (D2) between the glass cover (CG), and causing the second lens group (ZM) to zoom and the first lens group (FS) The system moves to focus, and another non-telecentric zoom lens 10B is formed. With the sixth table, the wide range end (Dide) of the first moving distance (D1) and the second moving distance (D2) is listed in the zoom. The parameters of the telephoto end (Tele) are not limited thereto.

是以,該非遠心變焦鏡頭10B,其以不同波長(0.450、0.480、0.550、0.600、0.630微米)係分別模擬出圖2D之橫向光線扇形圖,其在同一成像面(IMA)呈現不同像高(IMH)(IMA:0.0000mm、1.6600mm、3.3200mm、4.9800mm、6.6400mm、8.3000mm)上,且符號ey、py、ex、px係表示座標軸(最大刻度±50.000微米);圖2E之場曲和畸變圖,其最大視場(Maximum Field)為28.802度;圖2F之橫向色差圖,其最大視場(Maximum Field)為8.3000微米; 圖2G之縱向像差圖,其光瞳半徑(Pupil Radius)為4.0124毫米,亦維持良好投影成像品質。 Therefore, the non-telecentric zoom lens 10B simulates the transverse ray fan shape of FIG. 2D at different wavelengths (0.450, 0.480, 0.550, 0.600, 0.630 micrometers), respectively, which exhibit different image heights on the same imaging surface (IMA) ( IMH) (IMA: 0.0000mm, 1.6600mm, 3.3200mm, 4.9800mm, 6.6400mm, 8.3000mm), and the symbols ey, py, ex, px represent the coordinate axis (maximum scale ± 50.000 microns); the field song of Figure 2E And the distortion map, the maximum field of view (28.802 degrees); the lateral chromatic aberration diagram of Figure 2F, the maximum field of view (Maximum Field) is 8.3000 microns; The longitudinal aberration diagram of Fig. 2G has a pupil radius (Pupil Radius) of 4.0124 mm and also maintains good projection imaging quality.

如圖3A及圖3B所示,其為變焦鏡頭之第三實施例態樣,該第一透鏡群(FS)之單一個透鏡(L1)係為凸凹透鏡;該第二透鏡群(ZM)之正透鏡(L2)係為雙凸透鏡與該第二透鏡群(ZM)之負透鏡(L3)係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群(ZM)之二片透鏡(L4、L5)係分別依序為雙凸透鏡、凹凸透鏡係位在該第一膠合透鏡與該光圈(AP)之間;該第二透鏡群(ZM)之三片透鏡(L6、L7、L8)係分別依序為凸凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面凹凸透鏡,該玻璃非球面凹凸透鏡之SD為6.6及IHM為8.3。 As shown in FIG. 3A and FIG. 3B, which is a third embodiment of the zoom lens, the single lens (L1) of the first lens group (FS) is a convex-concave lens; the second lens group (ZM) The positive lens (L2) is a lenticular lens and the negative lens (L3) of the second lens group (ZM) is a combination of a biconcave lens into a first cemented lens; the second lens group (ZM) is a two lens (L4) And L5) are respectively a lenticular lens and a meniscus lens between the first cemented lens and the aperture (AP); and three lenses (L6, L7, L8) of the second lens group (ZM) The combination of a convex-concave lens and a lenticular lens is sequentially formed into a third cemented lens and the glass aspherical meniscus lens. The glass aspherical meniscus lens has an SD of 6.6 and an IHM of 8.3.

又,在表七,其透鏡(Lens)中列出L1R1、L1R2係分別為該單一個透鏡(L1)之投影側表面、影像源側表面;L2R1係分別為該正透鏡(L2)之投影側表面;L3R1、L3R2係分別為該負透鏡(L3)之投影側表面、影像源側表面;L4R1、L4R2、L5R1、L5R2係分別為該二片透鏡(L4、L5)之投影側表面、影像源側表面;APRETURE係為光圈(AP);L6R1、L7R1、L7R2、L8R1、L8R2係為該三片透鏡(L6、L7、L8)之投影側表面、影像源側表面,並列出各該透鏡之投影側表面、影像源側表面之半徑(Radius)、厚度(Thickness)、阿貝數(Vd)及折射率(Nd)之參數,配合表八,其玻璃非球面透鏡(ASPH)中列出L8R1、L8R2係分別為該玻璃非球面透鏡之投影側表面、影像源側表面,並列出各該玻璃非球面透鏡之Conic、4TH、6TH、8TH、10th、12th、14th及16th。 Further, in Table 7, in the lens (Lens), the L1R1 and L1R2 systems are respectively the projection side surface and the image source side surface of the single lens (L1); the L2R1 system is the projection side of the positive lens (L2), respectively. L3R1 and L3R2 are the projection side surface and the image source side surface of the negative lens (L3), respectively; L4R1, L4R2, L5R1, and L5R2 are the projection side surfaces and image sources of the two lenses (L4, L5), respectively. The side surface; APRETURE is the aperture (AP); L6R1, L7R1, L7R2, L8R1, L8R2 are the projection side surface of the three lenses (L6, L7, L8), the image source side surface, and the projection of each lens is listed. The parameters of the radius of the side surface and the source side surface (Radius), thickness (Thickness), Abbe number (Vd) and refractive index (Nd) are shown in Table 8. The glass aspherical lens (ASPH) lists L8R1. L8R2 is the projection side surface and the image source side surface of the glass aspherical lens, respectively, and lists the cores, 4TH, 6TH, 8TH, 10th, 12th, 14th and 16th of the glass aspherical lenses.

如圖3C所示,其該第一透鏡群(FS)與該第二透鏡群(ZM)之間具有一第一移動距離(D1);該玻璃非球面透鏡(ASPH)藉由表七及表八形成該玻璃非球面凹凸透鏡,並與該玻璃蓋板(CG)之間具有一第二移動距離(D2),使該第二透鏡群(ZM)係進行變焦與該第一透鏡群(FS)係移動進行對焦,亦形成另一非遠心變焦鏡頭10C,配合表九,其變焦(Zoom)中列出該第一移動距離(D1)、第二移動距離(D2)之廣角端(Wide)、望角端(Tele)之參數,但不限定於此。 As shown in FIG. 3C, the first lens group (FS) and the second lens group (ZM) have a first moving distance (D1); the glass aspheric lens (ASPH) is represented by Table 7 and Table Forming the glass aspherical meniscus lens with a second moving distance (D2) between the glass cover (CG), and causing the second lens group (ZM) to zoom and the first lens group (FS) The system moves to focus, and another non-telecentric zoom lens 10C is formed. In conjunction with Table 9, the wide-angle end (Wide) of the first moving distance (D1) and the second moving distance (D2) is listed in the zoom. The parameters of the telephoto end (Tele) are not limited thereto.

是以,該非遠心變焦鏡頭10C,其以不同波長(0.450、0.480、0.550、0.600、0.630微米)係分別模擬出圖3D之橫向光線扇形圖,其在同一成 像面(IMA)呈現不同像高(IMH)(IMA:0.0000mm、1.6600mm、3.3200mm、4.9800mm、6.6400mm、8.3000mm)上,且符號ey、py、ex、px係表示座標軸(最大刻度±50.000微米);圖3E之場曲和畸變圖,其最大視場(Maximum Field)為28.300度;圖3F之橫向色差圖,其最大視場(Maximum Field)為8.3000微米;圖3G之縱向像差圖,其光瞳半徑(Pupil Radius)為4.2729毫米,亦維持良好投影成像品質。 Therefore, the non-telecentric zoom lens 10C simulates the transverse ray fan pattern of FIG. 3D at different wavelengths (0.450, 0.480, 0.550, 0.600, 0.630 micrometers), respectively. The image plane (IMA) presents different image height (IMH) (IMA: 0.0000mm, 1.6600mm, 3.3200mm, 4.9800mm, 6.6400mm, 8.3000mm), and the symbols ey, py, ex, px represent the coordinate axis (maximum scale) ±50.000 micron); the field curvature and distortion map of Fig. 3E, the maximum field of view is 28.300 degrees; the lateral chromatic aberration diagram of Fig. 3F, the maximum field of view is 8.3000 microns; the longitudinal image of Fig. 3G The difference map, whose pupil radius (Pupil Radius) is 4.2729 mm, also maintains good projection imaging quality.

如圖4A及圖4B所示,其為變焦鏡頭之第四實施例態樣,該第一透鏡群(FS)之單一個透鏡(L1)係為凸凹透鏡;該第二透鏡群(ZM)之正透鏡(L2)係為雙凸透鏡與該第二透鏡群(ZM)之負透鏡(L3)係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群(ZM)之二片透鏡(L4、L5)係分別依序為雙凸透鏡、凹凸透鏡係位在該第一膠合透鏡與該光圈(AP)之間;該第二透鏡群(ZM)之三片透鏡(L6、L7、L8)係分別依序為雙凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面雙凸透鏡,該玻璃非球面雙凸透鏡之SD為6.55及IHM為8.3。 As shown in FIG. 4A and FIG. 4B, which is a fourth embodiment of the zoom lens, the single lens (L1) of the first lens group (FS) is a convex-concave lens; the second lens group (ZM) The positive lens (L2) is a lenticular lens and the negative lens (L3) of the second lens group (ZM) is a combination of a biconcave lens into a first cemented lens; the second lens group (ZM) is a two lens (L4) And L5) are respectively a lenticular lens and a meniscus lens between the first cemented lens and the aperture (AP); and three lenses (L6, L7, L8) of the second lens group (ZM) The combination of a biconcave lens and a lenticular lens respectively forms a third cemented lens and the glass aspherical lenticular lens. The glass aspherical lenticular lens has an SD of 6.55 and an IHM of 8.3.

又,在表十,其透鏡(Lens)中列出L1R1、L1R2係分別為該單一個透鏡(L1)之投影側表面、影像源側表面;L2R1係分別為該正透鏡(L2)之投影側表面;L3R1、L3R2係分別為該負透鏡(L3)之投影側表面、影像源側表面;L4R1、L4R2、L5R1、L5R2係分別為該二片透鏡(L4、L5)之投影側表面、影像源側表面;APRETURE係為光圈(AP);L6R1、L7R1、L7R2、L8R1、L8R2係為該三片透鏡(L6、L7、L8)之投影側表面、影像源側表面,並列出各該透鏡之投影側表面、影像源側表面之半徑(Radius)、厚度(Thickness)、阿貝數(Vd)及折射率(Nd)之參數,配合表十一,其玻璃非球面透鏡(ASPH)中列出L8R1、L8R2係分別為該玻璃非球面透鏡之投影側表面、影像源側表面,並列出各該玻璃非球面透鏡之Conic、4TH、6TH、8TH、10th、12th、14th及16th。 Further, in Table 10, the lenses L1R1 and L1R2 are respectively the projection side surface and the image source side surface of the single lens (L1); the L2R1 system is the projection side of the positive lens (L2), respectively. L3R1 and L3R2 are the projection side surface and the image source side surface of the negative lens (L3), respectively; L4R1, L4R2, L5R1, and L5R2 are the projection side surfaces and image sources of the two lenses (L4, L5), respectively. The side surface; APRETURE is the aperture (AP); L6R1, L7R1, L7R2, L8R1, L8R2 are the projection side surface of the three lenses (L6, L7, L8), the image source side surface, and the projection of each lens is listed. The parameters of the radius (Radius), thickness (Thickness), Abbe number (Vd) and refractive index (Nd) of the side surface and the image source side surface are listed in Table XI, and the glass aspherical lens (ASPH) lists L8R1. The L8R2 system is a projection side surface and an image source side surface of the glass aspherical lens, respectively, and lists the cores, 4TH, 6TH, 8TH, 10th, 12th, 14th, and 16th of the glass aspherical lenses.

如圖4C所示,其該第一透鏡群(FS)與該第二透鏡群(ZM)之間具有一第一移動距離(D1);該玻璃非球面透鏡(ASPH)藉由表十及表十一形成該玻璃非球面雙凸透鏡,並與該玻璃蓋板(CG)之間具有一第二移動距離(D2),使該第二透鏡群(ZM)係進行變焦與該第一透鏡群(FS)係移動進行對焦,亦形成再一非遠心變焦鏡頭10D,配合表十二,其變焦(Zoom)中列出該第一移動距離(D1)、第二移動距離(D2)之廣角端(Wide)、望角端(Tele)之參數,但不限定於此。 As shown in FIG. 4C, the first lens group (FS) and the second lens group (ZM) have a first moving distance (D1); the glass aspheric lens (ASPH) is represented by the table and the table. Forming the glass aspherical lenticular lens with a second moving distance (D2) between the glass cover (CG), and causing the second lens group (ZM) to zoom and the first lens group ( FS) moves to focus, and forms a non-telecentric zoom lens 10D. In conjunction with Table 12, the wide-angle end of the first moving distance (D1) and the second moving distance (D2) is listed in the zoom (Zoom). Wide), telephoto end (Tele) parameters, but not limited to this.

是以,該非遠心變焦鏡頭10D,其以不同波長(0.450、0.480、0.550、0.600、0.630微米)係分別模擬出圖4D之橫向光線扇形圖,其在同一成像面(IMA)呈現不同像高(IMH)(IMA:0.0000mm、1.6600mm、3.3200mm、4.9800mm、6.6400mm、8.3000mm)上,且符號ey、py、ex、px係表示座標軸(最大刻度±50.000微米);圖4E之場曲和畸變圖,其最大視場(Maximum Field)為27.917度;圖4F之橫向色差圖,其最大視場(Maximum Field)為8.3000微米;圖4G之縱向像差圖,其光瞳半徑(Pupil Radius)為4.2482毫米,亦維持良好投影成像品質。 Therefore, the non-telecentric zoom lens 10D simulates the transverse ray fan shape of FIG. 4D at different wavelengths (0.450, 0.480, 0.550, 0.600, 0.630 micrometers), respectively, which exhibit different image heights on the same imaging surface (IMA) ( IMH) (IMA: 0.0000mm, 1.6600mm, 3.3200mm, 4.9800mm, 6.6400mm, 8.3000mm), and the symbols ey, py, ex, px represent the coordinate axis (maximum scale ± 50.000 microns); the field song of Figure 4E And the distortion map, the maximum field of view (27.917 degrees); the lateral chromatic aberration diagram of Figure 4F, the maximum field of view (Maximum Field) is 8.3000 microns; Figure 4G longitudinal aberration diagram, its pupil radius (Pupil Radius ) is 4.2482 mm and also maintains good projection imaging quality.

基於如此之構成,本發明之該第一透鏡群(FS)僅該單一個透鏡(L1),該單一個透鏡(L1)此一光學特性的匹配,可兼顧材料特性及對焦效果達到較佳化,且該單一個透鏡(L1)而製作容易,可有效降低生產成本,與該第二透鏡群(ZM)之玻璃非球面透鏡之有效半徑(SD)及所形成最大像高(MAX IMH)的匹配之技術特徵,乃在一定匹配範圍,亦可穩定投影成像品質,乃具有相輔相乘之功效。 Based on such a configuration, the first lens group (FS) of the present invention is only the single lens (L1), and the matching of the optical characteristics of the single lens (L1) can achieve better material characteristics and focusing effect. And the single lens (L1) is easy to manufacture, and the production cost can be effectively reduced, and the effective radius (SD) of the glass aspheric lens of the second lens group (ZM) and the maximum image height (MAX IMH) formed are The matching technical features are in a certain matching range, and can also stabilize the projection imaging quality, which has the effect of complementary multiplication.

綜上所述,本發明所揭示之技術手段,確具「新穎性」、「進步性」及「可供產業利用」等發明專利要件,祈請 鈞局惠賜專利,以勵創新,無任德感。 In summary, the technical means disclosed in the present invention have the invention patents such as "novelty", "progressiveness" and "available for industrial use", and pray for the patents of the bureau to encourage innovation and no responsibility. German sense.

惟,上述所揭露之圖式、說明,僅為本發明之較佳實施例,大凡熟悉此項技藝人士,依本案精神範疇所作之修飾或等效變化,仍應包括在本案申請專利範圍內。 The drawings and the descriptions of the present invention are merely preferred embodiments of the present invention, and those skilled in the art, which are subject to the spirit of the present invention, should be included in the scope of the patent application.

Claims (9)

一種變焦鏡頭,係由投影側至影像源側依序包含:一第一透鏡群,其進行對焦,並包括單一個透鏡且為負透鏡,該單一個透鏡之阿貝數係設定為Vd、折射率係設定為Nd,其中23Vd50、1.5Nd1.9所構成;至少一第二透鏡群,其進行變焦,並包括一正透鏡與一負透鏡之組合,且該正透鏡與該負透鏡之組合係位於該第一透鏡群之單一個透鏡的後方;以及一光圈,係位在該第二透鏡群內,且該光圈之焦比係設定為1.8~2.2。 A zoom lens is sequentially included from a projection side to an image source side: a first lens group that focuses, and includes a single lens and is a negative lens, and the Abbe number of the single lens is set to Vd, refraction Rate is set to Nd, of which 23 Vd 50, 1.5 Nd 1.9; at least a second lens group, which is zoomed, and includes a combination of a positive lens and a negative lens, and the combination of the positive lens and the negative lens is located behind a single lens of the first lens group And an aperture, which is located in the second lens group, and the focal length of the aperture is set to 1.8 to 2.2. 一種變焦鏡頭,係由投影側至影像源側依序包含:一第一透鏡群,其進行對焦,並包括單一個透鏡且為負透鏡,該單一個透鏡之阿貝數係設定為Vd、折射率係設定為Nd,其中23Vd50、1.5Nd1.9所構成;以及至少一第二透鏡群,其進行變焦,並包括一正透鏡與一負透鏡之組合,且該正透鏡與該負透鏡之組合係位於該第一透鏡群之單一個透鏡的後方,再者,該第二透鏡群至少包含一片玻璃非球面透鏡,該玻璃非球面透鏡之有效半徑係設定為SD及所形成最大像高係設定為MAXIMH,且符合0.7<SD/MAX IMH<1.2。 A zoom lens is sequentially included from a projection side to an image source side: a first lens group that focuses, and includes a single lens and is a negative lens, and the Abbe number of the single lens is set to Vd, refraction Rate is set to Nd, of which 23 Vd 50, 1.5 Nd 1.9; and at least a second lens group that performs zooming, and includes a combination of a positive lens and a negative lens, and the combination of the positive lens and the negative lens is located in a single lens of the first lens group Further, the second lens group includes at least one glass aspheric lens, and the effective radius of the glass aspheric lens is set to SD and the maximum image height formed is set to MAXIMH, and is in accordance with 0.7<SD/MAX IMH< 1.2. 如請求項1所述之變焦鏡頭,其中,該光圈後至少包含該第二透鏡群之三片透鏡。 The zoom lens of claim 1, wherein the aperture comprises at least three lenses of the second lens group. 如請求項1或2所述之變焦鏡頭,其中,該變焦鏡頭至少包含該第二透鏡群之兩組膠合透鏡。 The zoom lens of claim 1 or 2, wherein the zoom lens comprises at least two sets of cemented lenses of the second lens group. 如請求項3所述之變焦鏡頭,其中,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、雙凹透鏡之組合成一第二膠合透鏡,並位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為雙凸透鏡、雙凹透鏡之組合成一第三膠合透鏡及該玻璃非球面雙凸透鏡。 The zoom lens of claim 3, wherein the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a double convex lens and the negative lens of the second lens group is double The concave lens is combined into a first cemented lens; the two lens groups of the second lens group are respectively a lenticular lens and a double concave lens combined into a second cemented lens, and positioned between the first cemented lens and the aperture; The three lens segments of the second lens group are respectively a lenticular lens and a biconcave lens combined into a third cemented lens and the glass aspherical lenticular lens. 如請求項3所述之變焦鏡頭,其中,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、雙凹透鏡之組合成一第二膠合透鏡係位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為雙凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面凹凸透鏡。 The zoom lens of claim 3, wherein the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a double convex lens and the negative lens of the second lens group is double The concave lens is combined into a first cemented lens; the two lens systems of the second lens group are respectively a lenticular lens, and the double concave lens is combined to form a second cemented lens between the first cemented lens and the aperture; The three lens systems of the second lens group are respectively a biconcave lens and a lenticular lens combined into a third cemented lens and the glass aspherical meniscus lens. 如請求項3所述之變焦鏡頭,其中,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、凹凸透鏡係位在該第一膠合透鏡 與該光圈之間;該第二透鏡群之三片透鏡係分別依序為凸凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面凹凸透鏡。 The zoom lens of claim 3, wherein the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a double convex lens and the negative lens of the second lens group is double The concave lens is combined into a first cemented lens; the two lens systems of the second lens group are sequentially lenticular lenses, and the lenticular lens is tied to the first cemented lens Between the aperture and the aperture, the three lens segments of the second lens group are respectively a convex-concave lens and a lenticular lens combined into a third cemented lens and the glass aspherical meniscus lens. 如請求項3所述之變焦鏡頭,其中,該第一透鏡群之單一個透鏡係為凸凹透鏡;該第二透鏡群之正透鏡係為雙凸透鏡與該第二透鏡群之負透鏡係為雙凹透鏡之組合成一第一膠合透鏡;該第二透鏡群之二片透鏡係分別依序為雙凸透鏡、凹凸透鏡係位在該第一膠合透鏡與該光圈之間;該第二透鏡群之三片透鏡係分別依序為雙凹透鏡、雙凸透鏡之組合成一第三膠合透鏡及該玻璃非球面雙凸透鏡。 The zoom lens of claim 3, wherein the single lens of the first lens group is a convex-concave lens; the positive lens of the second lens group is a double convex lens and the negative lens of the second lens group is double The concave lens is combined into a first cemented lens; the two lens systems of the second lens group are respectively a lenticular lens, and the lenticular lens is positioned between the first cemented lens and the aperture; three of the second lens groups The lens system is a combination of a biconcave lens and a lenticular lens, respectively, into a third cemented lens and the glass aspherical lenticular lens. 一種變焦鏡頭,係由投影側至影像源側依序包含:一第一透鏡群,其進行對焦,並包括單一個透鏡且為負透鏡,該單一個透鏡之阿貝數係設定為Vd、折射率係設定為Nd,其中23Vd50、1.5Nd1.9所構成;至少一第二透鏡群,其進行變焦,並包括一正透鏡與一負透鏡之組合成一第一膠合透鏡,且該正透鏡與該負透鏡之組合係位於該第一透鏡群之單一個透鏡的後方,再者,該第二透鏡群至少包含一片玻璃非球面透鏡,該玻璃非球面透鏡之有效半徑係設定為SD及所形成最大像高係設定為MAX IMH,且符合0.7<SD/MAX IMH<1.2;以及一光圈,係位在該第二透鏡群內,且該光圈之焦比係設定為1.8~2.2,再者,該光圈後至少包含該第二透鏡群之三片透鏡係分別依序為一第三膠合透鏡及該玻璃非球面透鏡,及該第二透鏡群之二片透鏡係位在該第一膠合透鏡與該光圈之間。 A zoom lens is sequentially included from a projection side to an image source side: a first lens group that focuses, and includes a single lens and is a negative lens, and the Abbe number of the single lens is set to Vd, refraction Rate is set to Nd, of which 23 Vd 50, 1.5 Nd 1.9. The at least one second lens group is zoomed, and includes a positive lens and a negative lens combined into a first cemented lens, and the combination of the positive lens and the negative lens is located in the first lens group. After the single lens, the second lens group includes at least one glass aspheric lens. The effective radius of the glass aspheric lens is set to SD and the maximum image height is set to MAX IMH, and is 0.7< SD/MAX IMH<1.2; and an aperture, which is located in the second lens group, and the focal length of the aperture is set to 1.8 to 2.2, and further, the aperture includes at least three of the second lens group The lens system is sequentially a third cemented lens and the glass aspherical lens, and two lenses of the second lens group are located between the first cemented lens and the aperture.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI307813B (en) * 2006-10-23 2009-03-21 Young Optics Inc Zoom lens
JP2016099411A (en) * 2014-11-19 2016-05-30 キヤノン株式会社 Zoom lens and image projection device
CN103676118B (en) * 2012-09-03 2017-10-13 株式会社理光 Projecting apparatus zoom lens and projecting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI307813B (en) * 2006-10-23 2009-03-21 Young Optics Inc Zoom lens
CN103676118B (en) * 2012-09-03 2017-10-13 株式会社理光 Projecting apparatus zoom lens and projecting apparatus
JP2016099411A (en) * 2014-11-19 2016-05-30 キヤノン株式会社 Zoom lens and image projection device

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