TW202331330A - Optical lens - Google Patents

Optical lens Download PDF

Info

Publication number
TW202331330A
TW202331330A TW111104106A TW111104106A TW202331330A TW 202331330 A TW202331330 A TW 202331330A TW 111104106 A TW111104106 A TW 111104106A TW 111104106 A TW111104106 A TW 111104106A TW 202331330 A TW202331330 A TW 202331330A
Authority
TW
Taiwan
Prior art keywords
lens
aspheric
optical
positive
lenses
Prior art date
Application number
TW111104106A
Other languages
Chinese (zh)
Other versions
TWI811987B (en
Inventor
李明燐
陳信德
王國權
Original Assignee
揚明光學股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 揚明光學股份有限公司 filed Critical 揚明光學股份有限公司
Priority to TW111104106A priority Critical patent/TWI811987B/en
Priority to CN202310056525.6A priority patent/CN116520528A/en
Publication of TW202331330A publication Critical patent/TW202331330A/en
Application granted granted Critical
Publication of TWI811987B publication Critical patent/TWI811987B/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lenses (AREA)
  • Glass Compositions (AREA)
  • Optical Filters (AREA)

Abstract

An optical lens, applied to a headlamp, includes three lenses closest to the magnified side of the lens, in sequence a first lens with a positive refractive power, a second lens with a negative refractive power and a third lens. The three lenses include at least two aspherical lenses, and one of which has positive power, the other has negative power. The signs of the curvature radii of the aspheric lens with a positive refractive power are the same in a first direction and a second direction, and the first direction and the second direction are perpendicular to each other. The lens closest to the minified side of the lens and having a refractive power is a spherical glass lens. The full field of view(FOV) of the lens is between 25 and 45 degrees. The lens has at most five lenses.

Description

光學鏡頭optical lens

本發明關於一種光學鏡頭，特別是關於一種可應用於車輛頭燈的光學鏡頭。The present invention relates to an optical lens, in particular to an optical lens applicable to vehicle headlights.

車燈的功效不僅在於提供駕駛辨識前方的環境狀態，進一步也可以提供給周遭人員知曉駕駛人現在所在的位置，以及達到相當程度的警示效果。目前市面上已有根據環境光線和行車狀況進行調整減少對向來車的眩目、或投影指示畫面以輔助開車的智慧車燈。因此，目前需要一種能兼顧交通法規要求的照明範圍，且可得到良好之解析度及較小之畸變量的光學鏡頭。The function of headlights is not only to provide drivers with the ability to recognize the surrounding environment ahead, but also to provide people around to know where the driver is now, and to achieve a considerable degree of warning effect. At present, there are smart car lights on the market that adjust according to the ambient light and driving conditions to reduce the glare of oncoming cars, or project instructions to assist driving. Therefore, there is currently a need for an optical lens that can meet the illumination range required by traffic regulations and can obtain good resolution and less distortion.

本發明的其他目的和優點可以從本發明實施例所揭露的技術特徵中得到進一步的了解。Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the embodiments of the present invention.

本發明之一實施例提出一種可應用於車燈上的光學鏡頭，包括最靠近鏡頭放大側的三片鏡片，依序為屈光度值為正的第一透鏡、屈光度值為負的第二透鏡和一片第三透鏡。此三片鏡片至少包含兩片非球面鏡片，且這兩片非球面透鏡的屈光度值，一者為正，另一者為負。屈光度值為正的非球面透鏡在一第一方向和一第二方向的曲率半徑的正負值相同，且第一方向與第二方向相互垂直。最靠近鏡頭縮小側且具有屈光度的鏡片，為球面玻璃透鏡。鏡頭的視場角介於25度和45度之間。以及鏡頭最多包括5片透鏡。One embodiment of the present invention proposes an optical lens that can be applied to vehicle lights, including three lenses closest to the magnification side of the lens, which are sequentially a first lens with a positive diopter value, a second lens with a negative diopter value, and A third lens. The three lenses include at least two aspheric lenses, and the diopter values of the two aspheric lenses are positive and negative. The positive and negative values of the curvature radius of the positive aspheric lens in a first direction and a second direction are the same, and the first direction and the second direction are perpendicular to each other. The lens closest to the reduction side of the lens and having a diopter is a spherical glass lens. The field of view of the lens is between 25 degrees and 45 degrees. And the lens includes a maximum of 5 lenses.

本發明之另一實施例提出一種光學鏡頭，自鏡頭放大側至鏡頭縮小側依序包含第一透鏡組、光圈和一第二透鏡組。第一透鏡組包括1~2片具屈光度的鏡片，其中1~2片具屈光度的鏡片包含一第一非球面透鏡。第二透鏡組包括2~3片具屈光度的鏡片，其中2~3片具屈光度的鏡片包含一第二非球面透鏡和一球面玻璃透鏡，且這球面玻璃透鏡為最靠近鏡頭縮小側且具有屈光度的鏡片。第一非球面透鏡和第二非球面透鏡的屈光度值，一者為正，另一者為負。屈光度值為正的非球面透鏡在一第一方向和一第二方向的曲率半徑的正負值相同，且第一方向與第二方向相互垂直。鏡頭滿足下列條件：25度＜FOV＜45度，而FOV為鏡頭的視場角；|EFL/BFL| ＞ 3，而EFL為鏡頭的有效焦距，BFL為鏡頭的背焦長度；以及鏡頭最多包括5片透鏡。Another embodiment of the present invention provides an optical lens, which sequentially includes a first lens group, an aperture and a second lens group from the zoom-in side of the lens to the zoom-out side of the lens. The first lens group includes 1~2 lenses with diopter, wherein 1~2 lenses with diopter include a first aspherical lens. The second lens group includes 2~3 lenses with diopter, wherein 2~3 lenses with diopter include a second aspheric lens and a spherical glass lens, and the spherical glass lens is the closest to the lens reduction side and has diopter lenses. One of the diopter values of the first aspheric lens and the second aspheric lens is positive, and the other is negative. The positive and negative values of the curvature radius of the positive aspheric lens in a first direction and a second direction are the same, and the first direction and the second direction are perpendicular to each other. The lens meets the following conditions: 25 degrees < FOV < 45 degrees, and FOV is the field of view of the lens; |EFL/BFL| > 3, and EFL is the effective focal length of the lens, BFL is the back focal length of the lens; and the lens includes at most 5 lenses.

基於上述，本發明的光學鏡頭具有如下至少其中之一的優點。藉由本發明實施例的設計，可提供一種符合交通法規要求的照明範圍、高解析度、低畸變量、小型化等特點，且能提供應用在汽車頭燈的較低製造成本及較佳成像品質的鏡頭設計。Based on the above, the optical lens of the present invention has at least one of the following advantages. Through the design of the embodiment of the present invention, it can provide a lighting range, high resolution, low distortion, miniaturization and other characteristics that meet the requirements of traffic regulations, and can provide lower manufacturing costs and better imaging quality for automotive headlights. lens design.

為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

有關下列實施例中所使用的用語「第一」、「第二」是為了辨識相同或相似本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之實施例的詳細說明中，將可清楚的呈現。的元件而使用。以下實施例中所提到的方向用語，例如：上、下、左、右、前或後等，僅是參考附加圖式的方向。因此，使用的方向用語是用來說明並非用來限制本發明。為顯現本實施例的特徵，僅顯示與本實施例有關的結構，其餘結構予以省略。The terms "first" and "second" used in the following embodiments are to identify the aforementioned and other technical contents, features and effects of the present invention that are the same or similar. , will be clearly shown. components are used. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Accordingly, the directional terms used are for the purpose of illustration and not for the purpose of limiting the invention. In order to show the features of this embodiment, only structures related to this embodiment are shown, and other structures are omitted.

本發明所謂的透鏡，係指元件具有部份或全部可穿透的材質所構成且具屈光度(power)，通常包含玻璃或塑膠所組成。可以包含一般透鏡(lens)、稜鏡(prism)、光圈、圓柱狀透鏡、雙錐形透鏡、柱狀陣列透鏡、楔形透鏡、楔形平板(wedge)或前述元件的組合。The so-called lens in the present invention refers to an element that is partially or completely made of permeable material and has diopter power, usually consisting of glass or plastic. It may include a general lens, a prism, an aperture, a cylindrical lens, a biconical lens, a cylindrical array lens, a wedge lens, a wedge, or a combination of the foregoing elements.

當鏡頭應用在投影系統中時，放大側係指在光路上靠近成像面(例如是螢幕)所處的一側，縮小側則係指在光路上靠近光源或光閥的一側。When the lens is used in a projection system, the magnification side refers to the side on the optical path that is close to the imaging surface (such as a screen), and the reduction side refers to the side that is close to the light source or light valve on the optical path.

一透鏡的物側面(或像側面)具有位於某區域的凸面部(或凹面部)，是指該區域相較於徑向上緊鄰該區域的外側區域，朝平行於光軸的方向更為「向外凸起」(或「向內凹陷」)而言。The object side (or image side) of a lens has a convex surface (or concave surface) in a certain area, which means that the area is more "oriented" in the direction parallel to the optical axis than the radially outer area of the area. Outward convex" (or "inward concave").

圖1為本發明一實施例的投影裝置的示意圖。請參照圖1，本實施例的投影裝置100可應用於車燈上且包括影像源120及光學鏡頭10。影像源120，包含µ-LED、雷射(laser)或LED等光源。此外，在本實施例中，光學鏡頭10的縮小側可設置一稜鏡130(或反射鏡)，影像光束I可被稜鏡130(或反射鏡)偏折後再進入光學鏡頭10，獲得轉折光路以減少投影裝置100整體所佔空間的效果。在一實施例中，光學鏡頭10的縮小側可設置影像源120直接面對光學鏡頭10，影像光束I由影像源120直接進入光學鏡頭10。FIG. 1 is a schematic diagram of a projection device according to an embodiment of the present invention. Please refer to FIG. 1 , the projection device 100 of this embodiment can be applied to a vehicle lamp and includes an image source 120 and an optical lens 10 . The image source 120 includes light sources such as µ-LED, laser or LED. In addition, in this embodiment, a mirror 130 (or mirror) can be provided on the reducing side of the optical lens 10, and the image beam I can be deflected by the mirror 130 (or mirror) and then enter the optical lens 10 to obtain a turning point. The optical path reduces the space occupied by the projection device 100 as a whole. In one embodiment, the image source 120 can be disposed directly facing the optical lens 10 at the zoom-out side of the optical lens 10 , and the image beam I enters the optical lens 10 directly from the image source 120 .

圖2為本發明第一實施例的光學鏡頭的光學結構圖。請參照圖2，在本實施例中，光學鏡頭10a設置於鏡頭放大側OS與鏡頭縮小側IS之間，光學鏡頭10a有一鏡筒(未繪示)，鏡筒裡由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3及透鏡L4，此外，影像源120位於對應縮小側IS位置。於本實施例中，光學鏡頭10a實質上由四片透鏡所組成，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L2及透鏡L3為非球面塑膠透鏡，且透鏡L1及透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。FIG. 2 is an optical structure diagram of the optical lens according to the first embodiment of the present invention. Please refer to Fig. 2, in this embodiment, the optical lens 10a is arranged between the lens enlargement side OS and the lens reduction side IS, the optical lens 10a has a lens barrel (not shown), and the lens barrel is from the enlargement side OS to the reduction side The IS arranges the lens L1, the lens L2, the aperture 14, the lens L3 and the lens L4 in sequence. In addition, the image source 120 is located at the position corresponding to the reduction side IS. In this embodiment, the optical lens 10 a is substantially composed of four lenses, and the diopters of the lenses L1 to L4 on the optical axis 12 are respectively positive, negative, positive, and positive in sequence. The lens L2 and the lens L3 are aspheric plastic lenses, and the lens L1 and the lens L4 are spherical glass lenses. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3 and the lens L4 can form the lens group G2 with positive diopter.

依本發明實施例的設計，非球面塑膠透鏡L2的屈光度值與非球面塑膠透鏡L3的屈光度值，一者為正，另一者為負。例如於本實例中透鏡L2具有負屈光度且透鏡L3具有正屈光度，於其他的鏡頭設計中透鏡L2可具有正屈光度且透鏡L3可具有負屈光度。再者，依本發明實施例的設計，非球面塑膠透鏡L2表面在一第一方向和一第二方向的曲率半徑(屈光度)的正負值相同，而該第一方向與該第二方向相互垂直，且非球面塑膠透鏡L3表面在第一方向和第二方向的曲率半徑(屈光度)的正負值相同，但本發明實施例並不以此為限制。舉例而言，如圖20A及圖20B所示，第一方向可為X軸方向且第二方向可為Y軸方向，圖20A顯示的透鏡的表面在X軸方向和Y軸方向的曲率半徑的正負值相同(皆為正)，且圖20B顯示的透鏡的表面在X軸方向和Y軸方向的曲率半徑的正負值相同(皆為負)。According to the design of the embodiment of the present invention, one of the diopter values of the aspheric plastic lens L2 and the diopter value of the aspheric plastic lens L3 is positive, and the other is negative. For example, in this example lens L2 has negative diopter and lens L3 has positive diopter, in other lens designs lens L2 may have positive diopter and lens L3 may have negative diopter. Furthermore, according to the design of the embodiment of the present invention, the positive and negative values of the radius of curvature (diopter) of the surface of the aspheric plastic lens L2 in a first direction and a second direction are the same, and the first direction and the second direction are perpendicular to each other. , and the positive and negative values of the radius of curvature (diopter) of the surface of the aspheric plastic lens L3 in the first direction and the second direction are the same, but the embodiments of the present invention are not limited thereto. For example, as shown in Figure 20A and Figure 20B, the first direction can be the X-axis direction and the second direction can be the Y-axis direction, and the curvature radius of the surface of the lens shown in Figure 20A is in the X-axis direction and the Y-axis direction The positive and negative values are the same (both are positive), and the positive and negative values of the curvature radii of the surface of the lens shown in FIG. 20B in the X-axis direction and the Y-axis direction are the same (both are negative).

再者，於本發明各具體實施例中，透鏡的數量、透鏡的形狀及光學特性皆可視實際需求做不同之設計。本發明各具體實施例之放大側OS均分別設於各圖之左側，而影像縮小側IS均設於各圖之右側，將不予重覆說明之。Furthermore, in each specific embodiment of the present invention, the number of lenses, the shape of the lenses, and the optical characteristics can be designed differently according to actual requirements. The enlargement side OS of each specific embodiment of the present invention is set on the left side of each figure, and the image reduction side IS is set on the right side of each figure, and will not be described again.

本發明所指光圈14是指一孔徑光欄(Aperture Stop)，光圈14例如為一獨立元件，但本發明不限於此，光圈14亦可以整合於其他光學元件上。於本實施例中，光圈14是利用機構件擋去周邊光線並保留中間部份透光的方式來達到類似的效果，而前述所謂的機構件可以是可調整的。所謂可調整，是指機構件的位置、形狀或是透明度的調整。或是，光圈14也可以在透鏡表面塗佈不透明的吸光材料，並使其保留中央部份透光以達限制光路的效果。當光圈14的孔徑越大時，光學鏡頭10a可對應到越小的光圈值(F-number)。依本發明實施例之設計，光圈14可設於最靠近鏡頭放大側的透鏡和鏡頭縮小側之間。The aperture 14 referred to in the present invention refers to an aperture stop. The aperture 14 is, for example, an independent component, but the present invention is not limited thereto. The aperture 14 can also be integrated on other optical components. In this embodiment, the aperture 14 achieves a similar effect by using mechanical components to block peripheral light while retaining light transmission in the middle, and the aforementioned so-called mechanical components may be adjustable. The so-called adjustable refers to the adjustment of the position, shape or transparency of the mechanical components. Alternatively, the aperture 14 can also be coated with an opaque light-absorbing material on the surface of the lens, and keep the central part light-transmitting to achieve the effect of limiting the light path. When the aperture of the aperture 14 is larger, the optical lens 10a can correspond to a smaller aperture value (F-number). According to the design of the embodiment of the present invention, the aperture 14 can be set between the lens closest to the zoom-in side of the lens and the zoom-out side of the lens.

球面透鏡是指透鏡前面和後面的表面都分別是球形表面的一部份，而球形表面的曲率是固定的。光學鏡頭10a的透鏡設計參數、外形分別如表一所示。然而，下文中所列舉的資料並非用以限定本發明，任何所屬領域中具有通常知識者在參照本發明之後，當可對其參數或設定作適當的更動，惟其仍應屬於本發明的範疇內。A spherical lens is one in which the front and rear surfaces of the lens are each part of a spherical surface, and the curvature of the spherical surface is fixed. The lens design parameters and shape of the optical lens 10a are respectively shown in Table 1. However, the information listed below is not intended to limit the present invention. Anyone with ordinary knowledge in the field may make appropriate changes to its parameters or settings after referring to the present invention, but it should still fall within the scope of the present invention .

表一係記載了光學系統中各透鏡之光學參數之值，所述之表面編號中之*號是代表該表面為一非球面；反之，若表面編號中無*號則為球面。表一中之曲率半徑、間距/厚度的單位為毫米(mm)。Table 1 records the optical parameters of each lens in the optical system. The * in the surface number mentioned above means that the surface is an aspheric surface; otherwise, if there is no * in the surface number, it is a spherical surface. The unit of curvature radius and pitch/thickness in Table 1 is millimeter (mm).

表一 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(雙凸) S1 40.7 9.25 1.7725 49.6    S2 -250.52 11.42       透鏡L2(非球面) S3* -6.43 4 1.5842 30.1    S4* -14.87 0.2       光圈14 S5 infinity 0.15       透鏡L3(非球面) S6* 23.24 10.29 1.4958 57.7    S7* -37.95 0.2       透鏡L4(新月) S8 21.31 25.03 1.7725 49.6    S9 66.22 2.55       影像源120 S10       　 　 Table I element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (biconvex) S1 40.7 9.25 1.7725 49.6 S2 -250.52 11.42 Lens L2 (aspheric surface) S3* -6.43 4 1.5842 30.1 S4* -14.87 0.2 Aperture 14 S5 infinity 0.15 Lens L3 (aspheric surface) S6* 23.24 10.29 1.4958 57.7 S7* -37.95 0.2 Lens L4 (crescent moon) S8 21.31 25.03 1.7725 49.6 S9 66.22 2.55 Image source 120 S10

在表一中，曲率半徑(mm)係指對應表面之曲率半徑，間距(mm)係指兩相鄰表面間於光軸12上之直線距離。舉例來說，表面S1之間距，即表面S1至表面S2間之距離，表面S9之間距，即表面S9至表面S10間之距離，欄中各透鏡與各光學元件所對應之厚度、折射率與阿貝數請參照同列中各間距、折射率與阿貝數對應之數值。表面S1、S2為透鏡L1的兩表面。表面S3、S4為第二透鏡L2的兩表面。有關於各表面的曲率半徑、間距等參數值，請參照表一，在此不再重述。In Table 1, the radius of curvature (mm) refers to the radius of curvature of the corresponding surface, and the spacing (mm) refers to the linear distance between two adjacent surfaces on the optical axis 12 . For example, the distance between surfaces S1, that is, the distance between surface S1 and surface S2, the distance between surfaces S9, that is, the distance between surface S9 and surface S10, the corresponding thickness, refractive index and For Abbe number, please refer to the values corresponding to each distance, refractive index and Abbe number in the same column. The surfaces S1 and S2 are the two surfaces of the lens L1. The surfaces S3 and S4 are two surfaces of the second lens L2. Please refer to Table 1 for parameters such as the radius of curvature and spacing of each surface, and will not repeat them here.

曲率半徑是指曲率的倒數。曲率半徑為正時，透鏡表面的球心在透鏡的縮小側方向。曲率半徑為負時，透鏡表面的球心在透鏡的放大側方向，而各透鏡之凸凹可見上表。The radius of curvature refers to the reciprocal of the curvature. When the radius of curvature is positive, the spherical center of the lens surface is in the direction of the shrinking side of the lens. When the radius of curvature is negative, the center of the lens surface is on the magnification side of the lens, and the convexity and concaveness of each lens can be seen in the above table.

本實施例的光圈值係以F/# (F-number)來代表，如上表所標示者。依本發明實施例之設計，光學鏡頭的光圈值(F-number)可介於0.4至0.86之間，光學鏡頭的畸變量絕對值小於5%。於本實施例中，光學鏡頭10a的光圈值(F-number)為0.59，畸變量約為-3%。The aperture value of this embodiment is represented by F/# (F-number), as indicated in the table above. According to the design of the embodiment of the present invention, the F-number of the optical lens can be between 0.4 and 0.86, and the absolute value of the distortion of the optical lens is less than 5%. In this embodiment, the F-number of the optical lens 10a is 0.59, and the distortion is about -3%.

EFL為光學鏡頭10a 的有效焦距，於本實施例中，光學鏡頭10a 的有效焦距EFL為24.4mm，|EFL/BFL|=9.57。BFL是光學鏡頭的背焦長度，維基百科對BFL的解釋如後所述，”對厚透鏡（厚度不能忽略的透鏡），或是有好幾片透鏡或面鏡的系統（像是照相機鏡頭或望遠鏡），焦距通常會以有效焦距（EFL，effective focal length）來表示，以與一般常用的參數有所區別：…後焦距（BFD）或後焦長（BFL）是系統最後一個光學表面頂點至後方焦點的距離。”，亦即為表一中S9的間距2.55mm。當光學鏡頭做為取像鏡頭時，BFL為光學鏡頭最靠近鏡頭縮小側的光學表面頂點至後方成像面的距離，此時鏡頭的物距是設為無窮遠為前提或是在鏡頭放大側以零度平行光入射光學鏡頭。本發明實施例的光學鏡頭可滿足|EFL/BFL| ＞3.8的條件，當滿足該條件時可於大光圈下避免成像解析度下降過多，較佳為|EFL/BFL| ＞4.5，且更佳為|EFL/BFL| ＞5。EFL is the effective focal length of the optical lens 10a. In this embodiment, the effective focal length EFL of the optical lens 10a is 24.4mm, and |EFL/BFL|=9.57. BFL is the back focal length of an optical lens. Wikipedia's explanation of BFL is as follows, "For thick lenses (lenses whose thickness cannot be ignored), or systems with several lenses or mirrors (such as camera lenses or telescopes) ), the focal length is usually represented by effective focal length (EFL, effective focal length) to distinguish it from commonly used parameters: ...Back focal length (BFD) or back focal length (BFL) is the last optical surface vertex of the system to the rear Focus distance.", that is, the pitch of S9 in Table 1 is 2.55mm. When the optical lens is used as an imaging lens, BFL is the distance from the apex of the optical surface closest to the zoom-in side of the optical lens to the rear imaging surface. Zero-degree parallel light incident optical lens. The optical lens of the embodiment of the present invention can meet the condition of |EFL/BFL| > 3.8, and when this condition is met, the imaging resolution can be avoided to drop too much at a large aperture, preferably |EFL/BFL| > 4.5, and more preferably For |EFL/BFL| >5.

全視場角FOV是指最接近放大側OS的光學表面S1的收光角度，亦即以對角線量測所得之視野(full field of view)。依本發明實施例之設計，全視場角可大於25度且小於45度，較佳為大於26度且小於42度，且更佳為大於28度且小於40度。於本實施例中，光學鏡頭10a 的全視場角FOV為31.6度。依本發明實施例之設計，光學鏡頭的總長(TTL)小於90mm，亦即光學鏡頭最靠近鏡頭放大側的光學表面頂點至後方成像面(影像源)的距離。The full field of view FOV refers to the light-receiving angle of the optical surface S1 closest to the magnifying side OS, that is, the full field of view measured by a diagonal line. According to the design of the embodiment of the present invention, the full viewing angle can be greater than 25 degrees and less than 45 degrees, preferably greater than 26 degrees and less than 42 degrees, and more preferably greater than 28 degrees and less than 40 degrees. In this embodiment, the full field of view FOV of the optical lens 10a is 31.6 degrees. According to the design of the embodiment of the present invention, the total length (TTL) of the optical lens is less than 90 mm, that is, the distance from the vertex of the optical surface of the optical lens closest to the lens magnification side to the rear imaging surface (image source).

依本發明實施例之設計，第一非球面塑膠透鏡L1和第二非球面塑膠透鏡L2的折射率可介於1.47-1.6之間，較佳為介於1.50-1.6之間，且更佳為介於1.57-1.6之間。非球面塑膠透鏡的材質例如可為PMMA或PC。According to the design of the embodiment of the present invention, the refractive index of the first aspheric plastic lens L1 and the second aspheric plastic lens L2 can be between 1.47-1.6, preferably between 1.50-1.6, and more preferably Between 1.57-1.6. The material of the aspheric plastic lens can be PMMA or PC, for example.

球面透鏡是指透鏡前面和後面的表面都分別是球形表面的一部份，而球形表面的曲率是固定的。非球面透鏡則是指透鏡前後表面中，至少一表面的曲率半徑會隨著中心軸而變化，可以用來修正像差。本發明如下的各個設計實例中，非球面多項式可用下列公式表示： 上述的公式中，Z為光軸方向之偏移量（sag），c是密切球面（osculating sphere）的半徑之倒數，也就是接近光軸處的曲率半徑的倒數，k是圓錐係數（conic），r是非球面高度，即為從透鏡中心往透鏡邊緣的高度。表二的A-G分別代表非球面多項式的 4階項、6階項、8階項、10階項、12階項、14階項、16階項係數值。然而，下文中所列舉的資料並非用以限定本發明，任何所屬領域中具有通常知識者在參照本發明之後，當可對其參數或設定作適當的更動，惟其仍應屬於本發明的範疇內。 A spherical lens is one in which the front and rear surfaces of the lens are each part of a spherical surface, and the curvature of the spherical surface is fixed. An aspheric lens refers to the front and rear surfaces of the lens, at least one of which has a radius of curvature that changes along the central axis, which can be used to correct aberrations. In each following design example of the present invention, the aspheric polynomial can be represented by following formula: In the above formula, Z is the offset in the direction of the optical axis (sag), c is the reciprocal of the radius of the osculating sphere, that is, the reciprocal of the radius of curvature near the optical axis, and k is the conic coefficient (conic) , r is the height of the aspheric surface, which is the height from the center of the lens to the edge of the lens. AG in Table 2 represents the coefficient values of the 4th order item, 6th order item, 8th order item, 10th order item, 12th order item, 14th order item, and 16th order item of the aspheric polynomial respectively. However, the information listed below is not intended to limit the present invention. Anyone with ordinary knowledge in the field may make appropriate changes to its parameters or settings after referring to the present invention, but it should still fall within the scope of the present invention .

表二 表面 K A B C D E F S3* -2.023E+00 1.448E-04 -1.088E-06 4.577E-09 -1.105E-11 1.425E-14 -7.650E-18 S4* -8.197E-01 2.260E-04 -9.185E-07 1.724E-09 8.628E-13 -6.872E-15 6.024E-18 S6* 0.000E+00 -1.640E-04 1.142E-06 -6.496E-09 2.051E-11 -3.090E-14 1.740E-17 S7* 0.000E+00 2.381E-05 -2.605E-07 1.941E-09 -9.114E-12 2.298E-14 -2.163E-17 Table II surface K A B C D. E. f S3* -2.023E+00 1.448E-04 -1.088E-06 4.577E-09 -1.105E-11 1.425E-14 -7.650E-18 S4* -8.197E-01 2.260E-04 -9.185E-07 1.724E-09 8.628E-13 -6.872E-15 6.024E-18 S6* 0.000E+00 -1.640E-04 1.142E-06 -6.496E-09 2.051E-11 -3.090E-14 1.740E-17 S7* 0.000E+00 2.381E-05 -2.605E-07 1.941E-09 -9.114E-12 2.298E-14 -2.163E-17

圖14和15為圖2的光學鏡頭10a的成像光學模擬數據圖。請參照圖14，圖14為調制傳遞函數曲線圖(modulation transfer function, MTF)，其橫軸為每週期/毫米之空間頻率（spatial frequency in cycles per millimeter），縱軸是光學轉移函數的模數（modulus of the OTF）。圖15為圖2的光學鏡頭10a的畸變(distortion)圖。由於圖14及圖15所顯示出的圖形均在要求的範圍內，由此可驗證本實施例的光學鏡頭10a可達到良好的成像效果。14 and 15 are diagrams of imaging optical simulation data of the optical lens 10 a in FIG. 2 . Please refer to Figure 14, Figure 14 is a modulation transfer function (modulation transfer function, MTF), the horizontal axis is the spatial frequency in cycles per millimeter (spatial frequency in cycles per millimeter), and the vertical axis is the modulus of the optical transfer function (modulus of the OTF). FIG. 15 is a distortion diagram of the optical lens 10 a of FIG. 2 . Since the graphs shown in FIG. 14 and FIG. 15 are all within the required range, it can be verified that the optical lens 10 a of this embodiment can achieve a good imaging effect.

圖3為本發明第二實施例的光學鏡頭10b的光學結構圖。於本實施例中，由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4及透鏡L5，且透鏡L1至透鏡L5在光軸12上的屈光度依序分別為正、負、正、正、負。透鏡L2及透鏡L3為非球面塑膠透鏡，且透鏡L1、透鏡L4及透鏡L5為球面玻璃透鏡，透鏡L4及透鏡L5可形成一膠合透鏡。於本實施例中，光學鏡頭10b的全視場角FOV為31.6度，光圈值(F-number)為0.59，光學鏡頭10b的有效焦距EFL為24.4mm，且|EFL/BFL |=8.87。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3、透鏡L4及透鏡L5可構成具正屈光度的透鏡組G2。光學鏡頭10b的透鏡及其周邊元件的設計參數如表三所示，且各個非球面的圓錐係數與非球面係數如表四所示。FIG. 3 is an optical structure diagram of an optical lens 10b according to a second embodiment of the present invention. In this embodiment, lens L1, lens L2, aperture 14, lens L3, lens L4, and lens L5 are arranged in order from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L5 on the optical axis 12 are in order Positive, negative, positive, positive, negative, respectively. The lens L2 and the lens L3 are aspherical plastic lenses, and the lens L1 , the lens L4 and the lens L5 are spherical glass lenses, and the lens L4 and the lens L5 can form a cemented lens. In this embodiment, the full field of view FOV of the optical lens 10b is 31.6 degrees, the aperture value (F-number) is 0.59, the effective focal length EFL of the optical lens 10b is 24.4mm, and |EFL/BFL|=8.87. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3, the lens L4 and the lens L5 can form the lens group G2 with positive diopter. The design parameters of the lens and its surrounding components of the optical lens 10b are shown in Table 3, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 4.

表三 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(雙凸) S1 46.18 8.01 1.7725 49.6    S2 -540.11 13.8       透鏡L2(非球面) S3* -7.25 4.44 1.5842 30.1    S4* -10.97 1.84       光圈14 S5 infinity -1.64       透鏡L3(非球面) S6* 38.29 8.16 1.4958 57.7    S7* -87.59 0.2       透鏡L4(雙凸) S8 23.21 13.3 1.7725 49.6 透鏡L5(雙凹) S9 -31.37 10.8 1.7283 28.3    S10 48.94 2.75       影像源120 S11             Table three element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (biconvex) S1 46.18 8.01 1.7725 49.6 S2 -540.11 13.8 Lens L2 (aspheric surface) S3* -7.25 4.44 1.5842 30.1 S4* -10.97 1.84 Aperture 14 S5 infinity -1.64 Lens L3 (aspheric surface) S6* 38.29 8.16 1.4958 57.7 S7* -87.59 0.2 Lens L4 (biconvex) S8 23.21 13.3 1.7725 49.6 Lens L5 (double concave) S9 -31.37 10.8 1.7283 28.3 S10 48.94 2.75 Image source 120 S11

表四 表面 K A B C D E F S3* -1.650E+00 4.295E-05 -1.528E-07 6.902E-10 -1.986E-12 2.766E-15 -1.539E-18 S4* -8.864E-01 9.630E-05 -6.055E-08 -1.408E-10 1.105E-12 -2.437E-15 1.686E-18 S6* 0.000E+00 -1.049E-04 5.060E-07 -2.158E-09 6.768E-12 -1.130E-14 7.863E-18 S7* 0.000E+00 -4.509E-05 2.082E-07 -1.073E-09 4.042E-12 -7.751E-15 6.466E-18 Table four surface K A B C D. E. f S3* -1.650E+00 4.295E-05 -1.528E-07 6.902E-10 -1.986E-12 2.766E-15 -1.539E-18 S4* -8.864E-01 9.630E-05 -6.055E-08 -1.408E-10 1.105E-12 -2.437E-15 1.686E-18 S6* 0.000E+00 -1.049E-04 5.060E-07 -2.158E-09 6.768E-12 -1.130E-14 7.863E-18 S7* 0.000E+00 -4.509E-05 2.082E-07 -1.073E-09 4.042E-12 -7.751E-15 6.466E-18

圖4為本發明第三實施例的光學鏡頭10c的光學結構圖。於本實施例中，光學鏡頭10c由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L2及透鏡L3為非球面塑膠透鏡，透鏡L1及透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光學鏡頭10c的全視場角FOV為31.8度，光圈值(F-number)為0.6，光學鏡頭10c的有效焦距EFL為24.4mm，| EFL/BFL|=8.53。光學鏡頭10c的透鏡及其周邊元件的設計參數如表五所示，且各個非球面的圓錐係數與非球面係數如表六所示。FIG. 4 is an optical structure diagram of an optical lens 10c according to a third embodiment of the present invention. In this embodiment, the optical lens 10c arranges lens L1, lens L2, aperture 14, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L4 on the optical axis 12 are sequentially arranged. Positive, negative, positive, positive, respectively. The lens L2 and the lens L3 are aspheric plastic lenses, and the lens L1 and the lens L4 are spherical glass lenses. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3 and the lens L4 can form the lens group G2 with positive diopter. In this embodiment, the full field of view FOV of the optical lens 10c is 31.8 degrees, the aperture value (F-number) is 0.6, the effective focal length EFL of the optical lens 10c is 24.4mm, and |EFL/BFL|=8.53. Table 5 shows the design parameters of the lens and its surrounding components of the optical lens 10c, and Table 6 shows the conical coefficients and aspheric coefficients of each aspherical surface.

表五 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(新月) S1 32.23 9.36 1.7725 49.6    S2 187.76 12.64       透鏡L2(非球面) S3* -5.58 5 1.5842 30.1    S4* -10.88 -3.86       光圈14 S5 infinity 5.56       透鏡L3(非球面) S6* 9.96 11.93 1.4958 57.7    S7* 47.41 0.5       透鏡L4(新月) S8 28.71 16.01 1.804 46.6    S9 47.61 2.86       影像源120 S10             Table five element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (crescent moon) S1 32.23 9.36 1.7725 49.6 S2 187.76 12.64 Lens L2 (aspheric surface) S3* -5.58 5 1.5842 30.1 S4* -10.88 -3.86 Aperture 14 S5 infinity 5.56 Lens L3 (aspheric surface) S6* 9.96 11.93 1.4958 57.7 S7* 47.41 0.5 Lens L4 (crescent moon) S8 28.71 16.01 1.804 46.6 S9 47.61 2.86 Image source 120 S10

表六 表面 K A B C D E F S3* -2.675E+00 1.828E-05 8.747E-09 -3.293E-10 1.194E-12 -1.955E-15 1.238E-18 S4* -7.981E+00 -3.567E-05 4.629E-07 -2.362E-09 6.469E-12 -9.507E-15 5.823E-18 S6* -1.251E+00 -2.345E-06 -1.011E-06 1.634E-08 -1.108E-10 3.772E-13 -5.292E-16 S7* -8.334E+00 9.244E-06 -3.906E-08 2.506E-10 5.623E-12 -5.358E-14 9.368E-17 Table six surface K A B C D. E. f S3* -2.675E+00 1.828E-05 8.747E-09 -3.293E-10 1.194E-12 -1.955E-15 1.238E-18 S4* -7.981E+00 -3.567E-05 4.629E-07 -2.362E-09 6.469E-12 -9.507E-15 5.823E-18 S6* -1.251E+00 -2.345E-06 -1.011E-06 1.634E-08 -1.108E-10 3.772E-13 -5.292E-16 S7* -8.334E+00 9.244E-06 -3.906E-08 2.506E-10 5.623E-12 -5.358E-14 9.368E-17

圖5為本發明第四實施例的光學鏡頭10d的光學結構圖。於本實施例中，光學鏡頭10d由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L2及透鏡L3為非球面塑膠透鏡，透鏡L1及透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光學鏡頭10d的全視場角FOV為31.8度，光圈值(F-number)為0.59，光學鏡頭10d的有效焦距EFL為24.5mm，| EFL/BFL|=10.21。光學鏡頭10d的透鏡及其周邊元件的設計參數如表七所示，且各個非球面的圓錐係數與非球面係數如表八所示。FIG. 5 is an optical structure diagram of an optical lens 10d according to a fourth embodiment of the present invention. In this embodiment, the optical lens 10d arranges lens L1, lens L2, aperture 14, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L4 on the optical axis 12 are sequentially arranged. Positive, negative, positive, positive, respectively. The lens L2 and the lens L3 are aspheric plastic lenses, and the lens L1 and the lens L4 are spherical glass lenses. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3 and the lens L4 can form the lens group G2 with positive diopter. In this embodiment, the full field of view FOV of the optical lens 10d is 31.8 degrees, the aperture value (F-number) is 0.59, the effective focal length EFL of the optical lens 10d is 24.5mm, and |EFL/BFL|=10.21. The design parameters of the optical lens 10d and its peripheral elements are shown in Table 7, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 8.

表七 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(新月) S1 28.73 11.3 1.6204 60.4    S2 264.73 10.38       透鏡L2(非球面) S3* -5.14 4.21 1.5842 30.1    S4* -11.21 -4.32       光圈14 S5 infinity 4.42       透鏡L3(非球面) S6* 6.84 8.54 1.4958 57.7    S7* 9.32 4.09       透鏡L4(新月) S8 15.31 16.67 1.8348 42.7    S9 77.2 2.4       影像源120 S10         　 Table seven element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (crescent moon) S1 28.73 11.3 1.6204 60.4 S2 264.73 10.38 Lens L2 (aspheric surface) S3* -5.14 4.21 1.5842 30.1 S4* -11.21 -4.32 Aperture 14 S5 infinity 4.42 Lens L3 (aspheric surface) S6* 6.84 8.54 1.4958 57.7 S7* 9.32 4.09 Lens L4 (crescent moon) S8 15.31 16.67 1.8348 42.7 S9 77.2 2.4 Image source 120 S10

表八 表面 K A B C D E F S3* -3.711E+00 1.063E-05 7.840E-09 -2.020E-10 8.543E-13 -1.678E-15 1.257E-18 S4* -1.167E+01 -4.544E-05 5.305E-07 -2.760E-09 8.160E-12 -1.307E-14 8.686E-18 S6* -1.668E+00 -9.509E-05 2.973E-06 -2.819E-08 1.634E-10 -5.141E-13 6.149E-16 S7* -1.361E+00 7.972E-05 2.836E-06 -5.527E-08 6.304E-10 -3.647E-12 7.770E-15 table eight surface K A B C D. E. f S3* -3.711E+00 1.063E-05 7.840E-09 -2.020E-10 8.543E-13 -1.678E-15 1.257E-18 S4* -1.167E+01 -4.544E-05 5.305E-07 -2.760E-09 8.160E-12 -1.307E-14 8.686E-18 S6* -1.668E+00 -9.509E-05 2.973E-06 -2.819E-08 1.634E-10 -5.141E-13 6.149E-16 S7* -1.361E+00 7.972E-05 2.836E-06 -5.527E-08 6.304E-10 -3.647E-12 7.770E-15

圖6為本發明第五實施例的光學鏡頭10e的光學結構圖。於本實施例中，光學鏡頭10e由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L2及透鏡L3為非球面塑膠透鏡，透鏡L1及透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光學鏡頭10e的全視場角FOV為31.6度，光圈值(F-number)為0.59，光學鏡頭10e的有效焦距EFL為24.5mm，| EFL/BFL|=10.34。光學鏡頭10e的透鏡及其周邊元件的設計參數如表九所示，且各個非球面的圓錐係數與非球面係數如表十所示。FIG. 6 is an optical structure diagram of an optical lens 10e according to a fifth embodiment of the present invention. In this embodiment, the optical lens 10e arranges lens L1, lens L2, aperture 14, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L4 on the optical axis 12 are sequentially arranged. Positive, negative, positive, positive, respectively. The lens L2 and the lens L3 are aspheric plastic lenses, and the lens L1 and the lens L4 are spherical glass lenses. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3 and the lens L4 can form the lens group G2 with positive diopter. In this embodiment, the full field of view FOV of the optical lens 10e is 31.6 degrees, the f-number (F-number) is 0.59, the effective focal length EFL of the optical lens 10e is 24.5mm, and |EFL/BFL|=10.34. The design parameters of the lens and its peripheral components of the optical lens 10e are shown in Table 9, and the conic coefficients and aspheric coefficients of each aspheric surface are shown in Table 10.

表九 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(新月) S1 26.62 9.49 1.618 63.3    S2 51.64 13.63       透鏡L2(非球面) S3* -6.18 4.69 1.5842 30.1    S4* -10.75 -6.3       光圈14 S5 infinity 6.4       透鏡L3(非球面) S6* 8.42 13.09 1.4958 57.7    S7* 9.08 3.51       透鏡L4(新月) S8 16.18 14.84 1.9537 32.3    S9 82.58 2.37       影像源120 S10             Table nine element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (crescent moon) S1 26.62 9.49 1.618 63.3 S2 51.64 13.63 Lens L2 (aspheric surface) S3* -6.18 4.69 1.5842 30.1 S4* -10.75 -6.3 Aperture 14 S5 infinity 6.4 Lens L3 (aspheric surface) S6* 8.42 13.09 1.4958 57.7 S7* 9.08 3.51 Lens L4 (crescent moon) S8 16.18 14.84 1.9537 32.3 S9 82.58 2.37 Image source 120 S10

表十 表面 K A B C D E F S3* -3.570E+00 -3.423E-05 3.742E-07 -1.869E-09 5.715E-12 -9.559E-15 6.555E-18 S4* -7.270E+00 -1.143E-04 1.068E-06 -5.187E-09 1.519E-11 -2.422E-14 1.599E-17 S6* -1.330E+00 -8.178E-05 5.802E-07 2.345E-09 -3.650E-11 1.535E-13 -2.293E-16 S7* -1.500E+00 3.060E-05 1.242E-06 -1.482E-08 1.516E-10 -7.559E-13 1.228E-15 table ten surface K A B C D. E. f S3* -3.570E+00 -3.423E-05 3.742E-07 -1.869E-09 5.715E-12 -9.559E-15 6.555E-18 S4* -7.270E+00 -1.143E-04 1.068E-06 -5.187E-09 1.519E-11 -2.422E-14 1.599E-17 S6* -1.330E+00 -8.178E-05 5.802E-07 2.345E-09 -3.650E-11 1.535E-13 -2.293E-16 S7* -1.500E+00 3.060E-05 1.242E-06 -1.482E-08 1.516E-10 -7.559E-13 1.228E-15

圖16和圖17為圖6的光學鏡頭10e的成像光學模擬數據圖。圖16為圖6的光學鏡頭10e的調制傳遞函數曲線圖(modulation transfer function, MTF)，圖17為圖6的光學鏡頭10e的畸變(distortion)圖。由於圖16及圖17所顯示出的圖形均在要求的範圍內，由此可驗證本實施例的光學鏡頭10e可達到良好的成像效果。FIG. 16 and FIG. 17 are diagrams of imaging optical simulation data of the optical lens 10 e in FIG. 6 . FIG. 16 is a modulation transfer function curve (modulation transfer function, MTF) of the optical lens 10e of FIG. 6 , and FIG. 17 is a distortion diagram of the optical lens 10e of FIG. 6 . Since the graphs shown in FIG. 16 and FIG. 17 are all within the required range, it can be verified that the optical lens 10e of this embodiment can achieve a good imaging effect.

圖7為本發明第六實施例的光學鏡頭10f的光學結構圖。於本實施例中，光學鏡頭10f由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L1、透鏡L2及透鏡L3為非球面塑膠透鏡，透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光學鏡頭10f的全視場角FOV為32度，光圈值(F-number)為0.6，光學鏡頭10f的有效焦距EFL為24.5mm，| EFL/BFL|=9.01。光學鏡頭10f的透鏡及其周邊元件的設計參數如表十一所示，且各個非球面的圓錐係數與非球面係數如表十二所示。FIG. 7 is an optical structure diagram of an optical lens 10f according to a sixth embodiment of the present invention. In this embodiment, the optical lens 10f arranges lens L1, lens L2, aperture 14, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L4 on the optical axis 12 are sequentially arranged. Positive, negative, positive, positive, respectively. The lens L1 , the lens L2 and the lens L3 are aspheric plastic lenses, and the lens L4 is a spherical glass lens. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3 and the lens L4 can form the lens group G2 with positive diopter. In this embodiment, the full field of view FOV of the optical lens 10f is 32 degrees, the aperture value (F-number) is 0.6, the effective focal length EFL of the optical lens 10f is 24.5 mm, and |EFL/BFL|=9.01. Table 11 shows the design parameters of the lens of the optical lens 10f and its peripheral elements, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 12.

表十一 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(非球面) S1* 25.64 12.55 1.4958 57.7    S2* 174.42 11.35       透鏡L2(非球面) S3* -7.29 4.98 1.5842 30.1    S4* -9.32 -0.77       光圈14 S5 infinity 0.97       透鏡L3(非球面) S6* 8.12 5.67 1.4958 57.7    S7* 6.27 4.33       透鏡L4(新月) S8 14.59 15.72 1.798 47.1    S9 76.99 2.72       影像源120 S10       　 　 Table Eleven element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (aspheric surface) S1* 25.64 12.55 1.4958 57.7 S2* 174.42 11.35 Lens L2 (aspheric surface) S3* -7.29 4.98 1.5842 30.1 S4* -9.32 -0.77 Aperture 14 S5 infinity 0.97 Lens L3 (aspheric surface) S6* 8.12 5.67 1.4958 57.7 S7* 6.27 4.33 Lens L4 (crescent moon) S8 14.59 15.72 1.798 47.1 S9 76.99 2.72 Image source 120 S10

表十二 表面 K A B C D E F S1* -9.111E-03 2.191E-06 -8.511E-09 2.295E-12 8.174E-15 0 0 S2* -9.356E+00 3.620E-06 -2.424E-08 5.162E-11 -3.680E-14 0 0 S3* -3.341E+00 -2.340E-05 2.553E-07 -1.108E-09 2.701E-12 -3.561E-15 1.954E-18 S4* -4.554E+00 -4.423E-05 5.157E-07 -2.510E-09 6.972E-12 -1.047E-14 6.520E-18 S6* -1.011E+00 -1.164E-05 -2.725E-07 9.143E-09 -5.161E-11 4.466E-14 8.261E-17 S7* -1.103E+00 -2.827E-04 8.375E-06 -1.037E-07 8.840E-10 -4.793E-12 1.075E-14 Table 12 surface K A B C D. E. f S1* -9.111E-03 2.191E-06 -8.511E-09 2.295E-12 8.174E-15 0 0 S2* -9.356E+00 3.620E-06 -2.424E-08 5.162E-11 -3.680E-14 0 0 S3* -3.341E+00 -2.340E-05 2.553E-07 -1.108E-09 2.701E-12 -3.561E-15 1.954E-18 S4* -4.554E+00 -4.423E-05 5.157E-07 -2.510E-09 6.972E-12 -1.047E-14 6.520E-18 S6* -1.011E+00 -1.164E-05 -2.725E-07 9.143E-09 -5.161E-11 4.466E-14 8.261E-17 S7* -1.103E+00 -2.827E-04 8.375E-06 -1.037E-07 8.840E-10 -4.793E-12 1.075E-14

圖8為本發明第七實施例的光學鏡頭10g的光學結構圖。於本實施例中，光學鏡頭10g由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L2及透鏡L3為非球面塑膠透鏡，透鏡L1、透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光學鏡頭10f的全視場角FOV為31.8度，光圈值(F-number)為0.6，光學鏡頭10f的有效焦距EFL為24.5mm，| EFL/BFL|=10.04。光學鏡頭10g的透鏡及其周邊元件的設計參數如表十三所示，且各個非球面的圓錐係數與非球面係數如表十四所示。FIG. 8 is an optical structure diagram of an optical lens 10g according to a seventh embodiment of the present invention. In this embodiment, the optical lens 10g arranges lens L1, lens L2, aperture 14, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L4 on the optical axis 12 are sequentially arranged. Positive, negative, positive, positive, respectively. The lenses L2 and L3 are aspheric plastic lenses, and the lenses L1 and L4 are spherical glass lenses. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3 and the lens L4 can form the lens group G2 with positive diopter. In this embodiment, the full field of view FOV of the optical lens 10f is 31.8 degrees, the aperture value (F-number) is 0.6, the effective focal length EFL of the optical lens 10f is 24.5mm, and |EFL/BFL|=10.04. The design parameters of the lens and its peripheral elements of the optical lens 10g are shown in Table 13, and the conic coefficients and aspheric coefficients of each aspheric surface are shown in Table 14.

表十三 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(新月) S1 27.53 10.6 1.618 63.3    S2 101.55 13.29       透鏡L2(非球面) S3* -7.49 5 1.5842 30.1    S4* -9.44 0.00E+00       光圈14 S5 infinity 0.2       透鏡L3(非球面) S6* 9.94 7.2 1.4958 57.7    S7* 7.47 3.23       透鏡L4(新月) S8 13.31 13.4 1.7292 54.7    S9 82.57 2.44       影像源120 S10       　 　 Table 13 element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (crescent moon) S1 27.53 10.6 1.618 63.3 S2 101.55 13.29 Lens L2 (aspheric surface) S3* -7.49 5 1.5842 30.1 S4* -9.44 0.00E+00 Aperture 14 S5 infinity 0.2 Lens L3 (aspheric surface) S6* 9.94 7.2 1.4958 57.7 S7* 7.47 3.23 Lens L4 (crescent moon) S8 13.31 13.4 1.7292 54.7 S9 82.57 2.44 Image source 120 S10

表十四 表面 K A B C D E F S3* -2.715E+00 -1.340E-05 1.457E-07 -5.222E-10 1.084E-12 -1.300E-15 6.713E-19 S4* -3.375E+00 -3.227E-05 3.104E-07 -1.229E-09 2.875E-12 -3.766E-15 2.059E-18 S6* -8.238E-01 -3.513E-05 5.124E-07 -6.425E-09 6.275E-11 -2.833E-13 4.063E-16 S7* -1.209E+00 -1.152E-04 4.042E-06 -2.070E-08 -1.282E-10 2.436E-12 -1.062E-14 Table Fourteen surface K A B C D. E. f S3* -2.715E+00 -1.340E-05 1.457E-07 -5.222E-10 1.084E-12 -1.300E-15 6.713E-19 S4* -3.375E+00 -3.227E-05 3.104E-07 -1.229E-09 2.875E-12 -3.766E-15 2.059E-18 S6* -8.238E-01 -3.513E-05 5.124E-07 -6.425E-09 6.275E-11 -2.833E-13 4.063E-16 S7* -1.209E+00 -1.152E-04 4.042E-06 -2.070E-08 -1.282E-10 2.436E-12 -1.062E-14

圖9為本發明第八實施例的光學鏡頭10h的光學結構圖。於本實施例中，光學鏡頭10h由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、透鏡L3，且透鏡L1至透鏡L3在光軸12上的屈光度依序分別為正、負、正。透鏡L1及透鏡L2為非球面塑膠透鏡，且透鏡L3為球面玻璃透鏡。於本實施例中，光圈14位於透鏡L1的表面S1。於本實施例中，光學鏡頭10h的全視場角FOV為35.2度，光圈值(F-number)為0.65，光學鏡頭10h的有效焦距EFL為21.9mm，且|EFL/BFL|=5.43。光學鏡頭10h的透鏡及其周邊元件的設計參數如表十五所示，且各個非球面的圓錐係數與非球面係數如表十六所示。FIG. 9 is an optical structure diagram of an optical lens 10h according to an eighth embodiment of the present invention. In this embodiment, the optical lens 10h arranges lens L1, lens L2, and lens L3 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lens L1 to lens L3 on the optical axis 12 are respectively positive, negative, and just. The lenses L1 and L2 are aspheric plastic lenses, and the lens L3 is a spherical glass lens. In this embodiment, the aperture 14 is located on the surface S1 of the lens L1. In this embodiment, the full field of view FOV of the optical lens 10h is 35.2 degrees, the f-number (F-number) is 0.65, the effective focal length EFL of the optical lens 10h is 21.9 mm, and |EFL/BFL|=5.43. Table 15 shows the design parameters of the lens and its surrounding elements of the optical lens 10h, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 16.

表十五 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(非球面) 光圈14 S1* 26.18 10 1.4958 57.7    S2* -46.02 9.86       透鏡L2(非球面) S3* -35.12 10 1.5842 30.1    S4* -39.37 0.2       透鏡L3(平凸) S5 13.21 10 1.5579 70.7    S6 infinity 4.03       影像源120 S7             Table 15 element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (Aspherical) Aperture 14 S1* 26.18 10 1.4958 57.7 S2* -46.02 9.86 Lens L2 (aspheric surface) S3* -35.12 10 1.5842 30.1 S4* -39.37 0.2 Lens L3 (plano-convex) S5 13.21 10 1.5579 70.7 S6 infinity 4.03 Image source 120 S7

表十六 表面 K A B C D E F S3* 0 -2.029E-05 2.098E-08 -5.372E-10 1.311E-12 0 0 S4* 0 1.244E-06 7.958E-09 -2.604E-10 9.898E-13 0 0 S6* 0 7.496E-05 3.313E-08 7.902E-11 6.147E-13 0 0 S7* 0 9.180E-05 -2.808E-08 -8.022E-10 1.664E-11 0 0 Table 16 surface K A B C D. E. f S3* 0 -2.029E-05 2.098E-08 -5.372E-10 1.311E-12 0 0 S4* 0 1.244E-06 7.958E-09 -2.604E-10 9.898E-13 0 0 S6* 0 7.496E-05 3.313E-08 7.902E-11 6.147E-13 0 0 S7* 0 9.180E-05 -2.808E-08 -8.022E-10 1.664E-11 0 0

圖10為本發明第九實施例的光學鏡頭10i的光學結構圖。於本實施例中，光學鏡頭10i由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、透鏡L3、透鏡L4及透鏡L5，且透鏡L1至透鏡L5在光軸12上的屈光度依序分別為正、負、正、負、正。透鏡L1及透鏡L2為非球面塑膠透鏡，且透鏡L3、透鏡L4及透鏡L5為球面玻璃透鏡，透鏡L4及透鏡L5可形成一膠合透鏡。於本實施例中，光圈14位於透鏡L2的表面S4。於本實施例中，光學鏡頭10i的全視場角FOV為31.2度，光圈值(F-number)為0.59，光學鏡頭10i的有效焦距EFL為24mm，且|EFL/BFL |=4.6。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3、透鏡L4及透鏡L5可構成具正屈光度的透鏡組G2。光學鏡頭10i的透鏡及其周邊元件的設計參數如表十七所示，且各個非球面的圓錐係數與非球面係數如表十八所示。FIG. 10 is an optical structure diagram of an optical lens 10i according to a ninth embodiment of the present invention. In this embodiment, the optical lens 10i arranges lens L1, lens L2, lens L3, lens L4, and lens L5 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L5 on the optical axis 12 are sequentially arranged. Positive, negative, positive, negative, positive, respectively. The lens L1 and the lens L2 are aspherical plastic lenses, and the lens L3 , the lens L4 and the lens L5 are spherical glass lenses, and the lens L4 and the lens L5 can form a cemented lens. In this embodiment, the aperture 14 is located on the surface S4 of the lens L2. In this embodiment, the full field of view FOV of the optical lens 10i is 31.2 degrees, the aperture value (F-number) is 0.59, the effective focal length EFL of the optical lens 10i is 24mm, and |EFL/BFL|=4.6. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3, the lens L4 and the lens L5 can form the lens group G2 with positive diopter. Table 17 shows the design parameters of the lens and its surrounding elements of the optical lens 10i, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 18.

表十七 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(非球面) S1* 700 15 1.4958 57.7    S2* -8.15 0.51       透鏡L2(非球面) S3* 11 4.08 1.5842 30.1 光圈14 S4* 3.74 9.87       透鏡L3(雙凸) S5 66.36 10.96 1.4958 57.7    S6 -34.45 0.2       透鏡L4(新月) S7 22.73 4.53 1.9459 17.9 透鏡L5(新月) S8 12.4 8.79 1.804 46.6    S9 207.44 5.22       影像源120 S10       　 　 Table 17 element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (aspheric surface) S1* 700 15 1.4958 57.7 S2* -8.15 0.51 Lens L2 (aspheric surface) S3* 11 4.08 1.5842 30.1 Aperture 14 S4* 3.74 9.87 Lens L3 (biconvex) S5 66.36 10.96 1.4958 57.7 S6 -34.45 0.2 Lens L4 (crescent moon) S7 22.73 4.53 1.9459 17.9 Lens L5 (crescent moon) S8 12.4 8.79 1.804 46.6 S9 207.44 5.22 Image source 120 S10

表十八 表面 K A B C D E F G S1* 9.900E+01 1.404E-05 -1.858E-07 1.155E-09 -4.325E-12 9.407E-15 -1.036E-17 4.536E-21 S2* -5.483E+00 -1.244E-05 3.247E-08 2.114E-10 -2.421E-12 1.013E-14 -1.976E-17 1.577E-20 S3* -6.998E-01 -3.696E-04 2.862E-06 -2.083E-08 1.007E-10 -3.056E-13 5.199E-16 -3.815E-19 S4* -2.194E+00 3.636E-06 -3.307E-07 2.193E-09 -8.343E-12 1.974E-14 -2.654E-17 1.534E-20 Table 18 surface K A B C D. E. f G S1* 9.900E+01 1.404E-05 -1.858E-07 1.155E-09 -4.325E-12 9.407E-15 -1.036E-17 4.536E-21 S2* -5.483E+00 -1.244E-05 3.247E-08 2.114E-10 -2.421E-12 1.013E-14 -1.976E-17 1.577E-20 S3* -6.998E-01 -3.696E-04 2.862E-06 -2.083E-08 1.007E-10 -3.056E-13 5.199E-16 -3.815E-19 S4* -2.194E+00 3.636E-06 -3.307E-07 2.193E-09 -8.343E-12 1.974E-14 -2.654E-17 1.534E-20

圖11為本發明第十實施例的光學鏡頭10j的光學結構圖。於本實施例中，光學鏡頭10j由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、透鏡L3及透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L1及透鏡L2為非球面塑膠透鏡，透鏡L3、透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1構成透鏡組G1，透鏡L2、透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光圈14位於透鏡L2的表面S3。於本實施例中，光學鏡頭10j的全視場角FOV為30.4度，光圈值(F-number)為0.61，光學鏡頭10j的有效焦距EFL為24mm，| EFL/BFL|=4.54。光學鏡頭10j的透鏡及其周邊元件的設計參數如表十九所示，且各個非球面的圓錐係數與非球面係數如表二十所示。FIG. 11 is an optical structure diagram of an optical lens 10j according to the tenth embodiment of the present invention. In this embodiment, the optical lens 10j arranges lens L1, lens L2, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lens L1 to lens L4 on the optical axis 12 are respectively positive in sequence. , negative, positive, positive. The lenses L1 and L2 are aspheric plastic lenses, and the lenses L3 and L4 are spherical glass lenses. In this embodiment, lens L1 constitutes lens group G1, and lens L2, lens L3, and lens L4 may constitute lens group G2 with positive diopter. In this embodiment, the aperture 14 is located on the surface S3 of the lens L2. In this embodiment, the full field of view FOV of the optical lens 10j is 30.4 degrees, the aperture value (F-number) is 0.61, the effective focal length EFL of the optical lens 10j is 24mm, and |EFL/BFL|=4.54. Table 19 shows the design parameters of the lens of the optical lens 10j and its surrounding components, and Table 20 shows the conical coefficients and aspheric coefficients of each aspheric surface.

表十九 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(非球面) S1* 65.66 14.48 1.4958 57.7    S2* -14.21 3.65       透鏡L2(非球面) 光圈14 S3* 9.89 4.07 1.5842 30.1    S4* 4.17 6.61       透鏡L3(雙凸) S5 24.47 10.19 1.6232 62.2    S6 -37.74 0.2       透鏡L4(新月) S7 16.88 6.75 1.804 46.6    S8 51.32 5.29       影像源120 S9             Table nineteen element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (aspheric surface) S1* 65.66 14.48 1.4958 57.7 S2* -14.21 3.65 Lens L2 (Aspherical) Aperture 14 S3* 9.89 4.07 1.5842 30.1 S4* 4.17 6.61 Lens L3 (biconvex) S5 24.47 10.19 1.6232 62.2 S6 -37.74 0.2 Lens L4 (crescent moon) S7 16.88 6.75 1.804 46.6 S8 51.32 5.29 Image source 120 S9

表二十 表面 K A B C D E F S1* -9.900E+01 3.659E-05 -3.120E-07 1.490E-09 -4.404E-12 6.986E-15 -4.251E-18 S2* -8.121E-01 1.520E-04 -7.866E-07 3.076E-09 -7.328E-12 9.251E-15 -4.172E-18 S3* -4.722E+00 -6.066E-05 2.143E-07 -2.332E-10 -6.189E-13 1.482E-15 -2.263E-19 S4* -1.802E+00 -5.101E-05 3.964E-07 -1.535E-09 3.406E-12 -3.715E-15 0.000E+00 Table twenty surface K A B C D. E. f S1* -9.900E+01 3.659E-05 -3.120E-07 1.490E-09 -4.404E-12 6.986E-15 -4.251E-18 S2* -8.121E-01 1.520E-04 -7.866E-07 3.076E-09 -7.328E-12 9.251E-15 -4.172E-18 S3* -4.722E+00 -6.066E-05 2.143E-07 -2.332E-10 -6.189E-13 1.482E-15 -2.263E-19 S4* -1.802E+00 -5.101E-05 3.964E-07 -1.535E-09 3.406E-12 -3.715E-15 0.000E+00

圖12為本發明第十一實施例的光學鏡頭10k的光學結構圖。於本實施例中，光學鏡頭10k由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、透鏡L3、透鏡L4，且透鏡L1至透鏡L4在光軸12上的屈光度依序分別為正、負、正、正。透鏡L1及透鏡L2為非球面塑膠透鏡，透鏡L3、透鏡L4為球面玻璃透鏡。於本實施例中，透鏡L1構成透鏡組G1，透鏡L2、透鏡L3及透鏡L4可構成具正屈光度的透鏡組G2。於本實施例中，光圈14位於透鏡L2的表面S3。於本實施例中，光學鏡頭10k的全視場角FOV為31.8度，光圈值(F-number)為0.85，光學鏡頭10k的有效焦距EFL為33mm，| EFL/BFL|=5.53。光學鏡頭10k的透鏡及其周邊元件的設計參數如表二十一所示，且各個非球面的圓錐係數與非球面係數如表二十二所示。FIG. 12 is an optical structure diagram of an optical lens 10k according to an eleventh embodiment of the present invention. In this embodiment, the optical lens 10k arranges lens L1, lens L2, lens L3, and lens L4 sequentially from the enlargement side OS to the reduction side IS, and the diopters of lenses L1 to lens L4 on the optical axis 12 are respectively positive in sequence. , negative, positive, positive. The lenses L1 and L2 are aspheric plastic lenses, and the lenses L3 and L4 are spherical glass lenses. In this embodiment, lens L1 constitutes lens group G1, and lens L2, lens L3, and lens L4 may constitute lens group G2 with positive diopter. In this embodiment, the aperture 14 is located on the surface S3 of the lens L2. In this embodiment, the full field of view FOV of the optical lens 10k is 31.8 degrees, the aperture value (F-number) is 0.85, the effective focal length EFL of the optical lens 10k is 33mm, and |EFL/BFL|=5.53. Table 21 shows the design parameters of the lens and its peripheral components of the optical lens 10k, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 22.

表二十一 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(非球面) S1* 46.03 14.94 1.4958 57.7    S2* -26.58 0.4       透鏡L2(非球面) 光圈14 S3* 25.92 8.73 1.5842 30.1    S4* 8.69 6.65       透鏡L3(雙凸) S5 59.68 13.4 1.6031 60.6    S6 -34.19 0.2       透鏡L4(新月) S7 23.49 14.99 1.7725 49.6    S8 26.83 5.97       影像源120 S9             Table 21 element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (aspheric surface) S1* 46.03 14.94 1.4958 57.7 S2* -26.58 0.4 Lens L2 (Aspherical) Aperture 14 S3* 25.92 8.73 1.5842 30.1 S4* 8.69 6.65 Lens L3 (biconvex) S5 59.68 13.4 1.6031 60.6 S6 -34.19 0.2 Lens L4 (crescent moon) S7 23.49 14.99 1.7725 49.6 S8 26.83 5.97 Image source 120 S9

表二十二 表面 K A B C D E F S1* -3.338E-01 5.677E-06 -3.072E-08 1.495E-10 -4.611E-13 7.085E-16 -5.196E-19 S2* -9.470E+00 1.115E-05 -1.258E-08 -1.043E-13 -7.534E-14 1.672E-16 -1.424E-19 S3* -9.270E+00 -3.546E-06 -5.426E-08 2.821E-10 -6.253E-13 -6.958E-16 3.165E-18 S4* -2.154E+00 -1.495E-05 9.798E-08 -2.133E-11 -4.091E-12 2.123E-14 -3.339E-17 Table 22 surface K A B C D. E. f S1* -3.338E-01 5.677E-06 -3.072E-08 1.495E-10 -4.611E-13 7.085E-16 -5.196E-19 S2* -9.470E+00 1.115E-05 -1.258E-08 -1.043E-13 -7.534E-14 1.672E-16 -1.424E-19 S3* -9.270E+00 -3.546E-06 -5.426E-08 2.821E-10 -6.253E-13 -6.958E-16 3.165E-18 S4* -2.154E+00 -1.495E-05 9.798E-08 -2.133E-11 -4.091E-12 2.123E-14 -3.339E-17

圖18和圖19為圖12的光學鏡頭10k的成像光學模擬數據圖。圖18為圖12的光學鏡頭10k的調制傳遞函數曲線圖(modulation transfer function, MTF)，圖19為圖12的光學鏡頭10k的畸變(distortion)圖。由於圖18及圖19所顯示出的圖形均在要求的範圍內，由此可驗證本實施例的光學鏡頭10k可達到良好的成像效果。FIG. 18 and FIG. 19 are imaging optical simulation data diagrams of the optical lens 10k in FIG. 12 . FIG. 18 is a modulation transfer function curve (modulation transfer function, MTF) of the optical lens 10k in FIG. 12 , and FIG. 19 is a distortion diagram of the optical lens 10k in FIG. 12 . Since the graphs shown in FIG. 18 and FIG. 19 are all within the required range, it can be verified that the optical lens 10k of this embodiment can achieve a good imaging effect.

圖13為本發明第十二實施例的光學鏡頭10l的光學結構圖。於本實施例中，光學鏡頭10l由放大側OS往縮小側IS依序排列透鏡L1、透鏡L2、光圈14、透鏡L3、透鏡L4及透鏡L5，且透鏡L1至透鏡L5在光軸12上的屈光度依序分別為正、負、正、正、負。透鏡L2及透鏡L3為非球面塑膠透鏡，且透鏡L1、透鏡L4及透鏡L5為球面玻璃透鏡，透鏡L4及透鏡L5可形成一膠合透鏡。於本實施例中，光學鏡頭10i的全視場角FOV為31.8度，光圈值(F-number)為0.6，光學鏡頭10i的有效焦距EFL為24.2mm，且|EFL/BFL |=6.95。於本實施例中，透鏡L1及透鏡L2可構成透鏡組G1，透鏡L3、透鏡L4及透鏡L5可構成具正屈光度的透鏡組G2。光學鏡頭10l的透鏡及其周邊元件的設計參數如表二十三所示，且各個非球面的圓錐係數與非球面係數如表二十四所示。FIG. 13 is an optical structure diagram of an optical lens 101 according to the twelfth embodiment of the present invention. In this embodiment, the optical lens 101 arranges lens L1, lens L2, aperture 14, lens L3, lens L4, and lens L5 in order from the enlargement side OS to the reduction side IS, and the distance between lens L1 to lens L5 on the optical axis 12 is The diopters are respectively positive, negative, positive, positive, and negative in order. The lens L2 and the lens L3 are aspherical plastic lenses, and the lens L1 , the lens L4 and the lens L5 are spherical glass lenses, and the lens L4 and the lens L5 can form a cemented lens. In this embodiment, the full field of view FOV of the optical lens 10i is 31.8 degrees, the aperture value (F-number) is 0.6, the effective focal length EFL of the optical lens 10i is 24.2mm, and |EFL/BFL|=6.95. In this embodiment, the lens L1 and the lens L2 can form the lens group G1, and the lens L3, the lens L4 and the lens L5 can form the lens group G2 with positive diopter. Table 23 shows the design parameters of the lens of the optical lens 101 and its peripheral elements, and the conical coefficients and aspheric coefficients of each aspheric surface are shown in Table 24.

表二十三 元件 表面 曲率半徑(mm) 間距 (mm) 折射率 (Nd) 阿貝數 (Vd) 透鏡L1(雙凸) S1 42.02 11.54 1.4875 70.4    S2 -72.89 11.97       透鏡L2(非球面) S3* -6.25 3 1.4958 57.7    S4* -8.84 0.2       光圈14 S5 infinity 3.76       透鏡L3(非球面) S6* 28.41 12.7 1.4958 57.7    S7* -48.84 1       透鏡L4(雙凸) S8 21.71 12.7 1.7440 44.9 透鏡L5(雙凹) S9 -19 4 1.699 30    S10 26.12 3.48       影像源120 S11       　 　 Table 23 element surface Radius of curvature (mm) Spacing(mm) Refractive index (Nd) Abbe number (Vd) Lens L1 (biconvex) S1 42.02 11.54 1.4875 70.4 S2 -72.89 11.97 Lens L2 (aspheric surface) S3* -6.25 3 1.4958 57.7 S4* -8.84 0.2 Aperture 14 S5 infinity 3.76 Lens L3 (aspheric surface) S6* 28.41 12.7 1.4958 57.7 S7* -48.84 1 Lens L4 (biconvex) S8 21.71 12.7 1.7440 44.9 Lens L5 (double concave) S9 -19 4 1.699 30 S10 26.12 3.48 Image source 120 S11

表二十四 表面 K A B C D E F S3* -1.473E+00 1.006E-04 -4.297E-07 1.457E-09 -3.773E-12 6.036E-15 -4.208E-18 S4* -8.537E-01 2.353E-04 -7.230E-07 2.770E-09 -7.669E-12 1.283E-14 -8.575E-18 S6* 0.000E+00 -2.252E-05 -7.984E-08 1.003E-09 -5.154E-12 1.224E-14 -9.972E-18 S7* 0.000E+00 3.092E-05 -5.262E-07 3.890E-09 -1.575E-11 3.319E-14 -2.687E-17 Table twenty-four surface K A B C D. E. f S3* -1.473E+00 1.006E-04 -4.297E-07 1.457E-09 -3.773E-12 6.036E-15 -4.208E-18 S4* -8.537E-01 2.353E-04 -7.230E-07 2.770E-09 -7.669E-12 1.283E-14 -8.575E-18 S6* 0.000E+00 -2.252E-05 -7.984E-08 1.003E-09 -5.154E-12 1.224E-14 -9.972E-18 S7* 0.000E+00 3.092E-05 -5.262E-07 3.890E-09 -1.575E-11 3.319E-14 -2.687E-17

本發明的實施例藉由使第一透鏡L1、第二透鏡L2和第三透鏡L3中的至少兩片鏡片的材質為塑膠且為非球面透鏡，能提供較低的製造成本但仍保有良好的成像品質，此外，藉由使光學鏡頭實質上由3片到5片透鏡所組成，亦能達成低製造成本的目的。而且，本發明實施例將靠近縮小側的透鏡選擇為玻璃材質，能具有較廣的工作溫度範圍。綜上所述，本發明的光學鏡頭具有如下至少其中之一的優點：藉由本發明實施例的設計，可提供一種符合交通法規要求的照明範圍、高解析度、低畸變量、小型化等特點，且能提供應用在汽車頭燈的較低製造成本及較佳成像品質的鏡頭設計。In the embodiment of the present invention, at least two of the first lens L1, the second lens L2, and the third lens L3 are made of plastic and aspherical lenses, which can provide lower manufacturing costs but still maintain good performance. Imaging quality, in addition, by making the optical lens substantially composed of 3 to 5 lenses, the purpose of low manufacturing cost can also be achieved. Moreover, in the embodiment of the present invention, the lens close to the reduction side is selected as glass material, which can have a wider working temperature range. In summary, the optical lens of the present invention has at least one of the following advantages: through the design of the embodiment of the present invention, it can provide a lighting range that meets the requirements of traffic regulations, high resolution, low distortion, and miniaturization. , and can provide a lens design with lower manufacturing cost and better imaging quality applied to automobile headlights.

雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be defined by the scope of the appended patent application.

10;10a-10l:光學鏡頭 12:光軸 14:光圈 100:投影裝置 120:影像源 130:稜鏡 G1;G2:透鏡組 I:影像光束 L1-L5:透鏡 S1-S10:表面 OS:放大側 IS:縮小側 10;10a-10l: optical lens 12: optical axis 14: Aperture 100: Projection device 120: image source 130: 稜鏡 G1;G2: Lens group I: image beam L1-L5: Lens S1-S10: Surface OS: zoom side IS: Reduced side

圖1為本發明一實施例的投影裝置的示意圖。 圖2為本發明第一實施例的光學鏡頭的光學結構圖。 圖3為本發明第二實施例的光學鏡頭的光學結構圖。 圖4為本發明第三實施例的光學鏡頭的光學結構圖。 圖5為本發明第四實施例的光學鏡頭的光學結構圖。 圖6為本發明第五實施例的光學鏡頭的光學結構圖。 圖7為本發明第六實施例的光學鏡頭的光學結構圖。 圖8為本發明第七實施例的光學鏡頭的光學結構圖。 圖9為本發明第八實施例的光學鏡頭的光學結構圖。 圖10為本發明第九實施例的光學鏡頭的光學結構圖。 圖11為本發明第十實施例的光學鏡頭的光學結構圖。 圖12為本發明第十一實施例的光學鏡頭的光學結構圖。 圖13為本發明第十二實施例的光學鏡頭的光學結構圖。 圖14為圖2的光學鏡頭的調制傳遞函數曲線圖，圖15為圖2的光學鏡頭的畸變圖。 圖16為圖6的光學鏡頭的調制傳遞函數曲線圖，圖17為圖6的光學鏡頭的畸變圖。 圖18為圖12的光學鏡頭的調制傳遞函數曲線圖，圖19為圖12的光學鏡頭的畸變圖。 圖20A及20B為說明本發明實施例之透鏡外形的立體示意簡圖。 FIG. 1 is a schematic diagram of a projection device according to an embodiment of the present invention. FIG. 2 is an optical structure diagram of the optical lens according to the first embodiment of the present invention. FIG. 3 is an optical structure diagram of an optical lens according to a second embodiment of the present invention. FIG. 4 is an optical structure diagram of an optical lens according to a third embodiment of the present invention. FIG. 5 is an optical structure diagram of an optical lens according to a fourth embodiment of the present invention. FIG. 6 is an optical structure diagram of an optical lens according to a fifth embodiment of the present invention. FIG. 7 is an optical structure diagram of an optical lens according to a sixth embodiment of the present invention. FIG. 8 is an optical structure diagram of an optical lens according to a seventh embodiment of the present invention. FIG. 9 is an optical structure diagram of an optical lens according to an eighth embodiment of the present invention. FIG. 10 is an optical structure diagram of an optical lens according to a ninth embodiment of the present invention. FIG. 11 is an optical structure diagram of an optical lens according to a tenth embodiment of the present invention. Fig. 12 is an optical structure diagram of an optical lens according to an eleventh embodiment of the present invention. FIG. 13 is an optical structure diagram of an optical lens according to a twelfth embodiment of the present invention. FIG. 14 is a graph of the modulation transfer function of the optical lens in FIG. 2 , and FIG. 15 is a distortion graph of the optical lens in FIG. 2 . FIG. 16 is a graph of the modulation transfer function of the optical lens in FIG. 6 , and FIG. 17 is a distortion graph of the optical lens in FIG. 6 . FIG. 18 is a graph of the modulation transfer function of the optical lens in FIG. 12 , and FIG. 19 is a distortion graph of the optical lens in FIG. 12 . 20A and 20B are three-dimensional schematic diagrams illustrating the shape of a lens according to an embodiment of the present invention.

10a:光學鏡頭 10a: Optical lens

12:光軸 12: optical axis

14:光圈 14: Aperture

120:影像源 120: image source

G1；G2:透鏡組 G1; G2: lens group

L1-L4:透鏡 L1-L4: lens

S1-S10:表面 S1-S10: Surface

OS:放大側 OS: zoom side

IS:縮小側 IS: Reduced side

Claims (10)

一種光學鏡頭，應用於車燈上，包括： 最靠近該鏡頭放大側的三片鏡片，依序為一屈光度值為正的第一透鏡、一屈光度值為負的第二透鏡和一第三透鏡，且該鏡頭最多包括5片透鏡； 該三片鏡片至少包含兩片非球面鏡片，且該兩片非球面透鏡的屈光度值，一者為正，另一者為負； 該屈光度值為正的非球面透鏡在一第一方向和一第二方向的曲率半徑的正負值相同，且該第一方向與該第二方向相互垂直； 最靠近該鏡頭縮小側且具有屈光度的鏡片，為一球面玻璃透鏡；以及 該鏡頭的視場角，大於25度，且小於45度。 An optical lens applied to a car light, comprising: The three lenses closest to the magnification side of the lens are sequentially a first lens with a positive diopter value, a second lens with a negative diopter value, and a third lens, and the lens includes at most 5 lenses; The three lenses include at least two aspheric lenses, and the diopter values of the two aspheric lenses are positive and the other is negative; The positive and negative values of the radius of curvature of the positive aspheric lens in a first direction and a second direction are the same, and the first direction and the second direction are perpendicular to each other; the lens having a diopter closest to the reducing side of the lens is a spherical glass lens; and The field of view of the lens is greater than 25 degrees and less than 45 degrees. 一種光學鏡頭，包括： 自鏡頭放大側至鏡頭縮小側依序包含一第一透鏡組、一光圈和一第二透鏡組； 該第一透鏡組包括1~2片具屈光度的鏡片，該1~2片具屈光度的鏡片包含一第一非球面透鏡； 該第二透鏡組包括2~3片具屈光度的鏡片，該2~3片具屈光度的鏡片包含一第二非球面透鏡和一球面玻璃透鏡，且該球面玻璃透鏡為最靠近鏡頭縮小側且具有屈光度的鏡片； 該第一非球面透鏡和該第二非球面透鏡的屈光度值，一者為正，另一者為負； 該屈光度值為正的非球面透鏡在一第一方向和一第二方向的曲率半徑的正負值相同，且該第一方向與該第二方向相互垂直； 該鏡頭滿足下列條件： 25度＜FOV＜45度，而FOV為該鏡頭的視場角； |EFL/BFL| ＞ 3.8，而EFL為該鏡頭的有效焦距，BFL為該鏡頭的背焦長度；以及 該鏡頭最多包括5片透鏡。 An optical lens comprising: A first lens group, a diaphragm and a second lens group are sequentially included from the zoom-in side of the lens to the zoom-out side of the lens; The first lens group includes 1~2 lenses with diopter, and the 1~2 lenses with diopter include a first aspherical lens; The second lens group includes 2~3 lenses with diopters, the 2~3 lenses with diopters include a second aspheric lens and a spherical glass lens, and the spherical glass lens is closest to the lens reduction side and has diopter lenses; One of the diopter values of the first aspheric lens and the second aspheric lens is positive and the other is negative; The positive and negative values of the radius of curvature of the positive aspheric lens in a first direction and a second direction are the same, and the first direction and the second direction are perpendicular to each other; The lens meets the following conditions: 25 degrees < FOV < 45 degrees, and FOV is the field of view of the lens; |EFL/BFL| > 3.8, where EFL is the effective focal length of the lens and BFL is the back focal length of the lens; and The lens includes up to 5 elements. 如請求項1-2中任一項所述之光學鏡頭，其中該光學鏡頭滿足下列條件之一：(1) 該鏡頭的畸變量絕對值小於5%，(2) 該鏡頭的光圈值(F-number)介於0.4至0.86之間。The optical lens as described in any one of claim 1-2, wherein the optical lens satisfies one of the following conditions: (1) the absolute value of the distortion of the lens is less than 5%, (2) the aperture value of the lens (F -number) between 0.4 and 0.86. 如請求項1-2中任一項所述之光學鏡頭，其中該光學鏡頭滿足下列條件之一：(1) 光圈設於該鏡頭放大側和第三透鏡之間，(2) 鏡頭縮小側設有一稜鏡或一反射鏡。The optical lens as described in any one of claim 1-2, wherein the optical lens satisfies one of the following conditions: (1) the aperture is set between the zoom-in side of the lens and the third lens, (2) the zoom-out side of the lens is set There is a mirror or a reflector. 如請求項1-2中任一項所述之光學鏡頭，其中該光學鏡頭滿足下列條件之一：(1) 該第一非球面透鏡和該第二非球面透鏡的材質為PMMA或PC，(2) 該第一非球面透鏡和第二非球面透鏡的折射率均介於1.47-1.6之間，(3) 該第一非球面透鏡朝向鏡頭放大側的表面的曲率半徑為正，(4) 該第一非球面透鏡和第二非球面透鏡在第一方向和第二方向的曲率半徑值相同。The optical lens as described in any one of claim items 1-2, wherein the optical lens satisfies one of the following conditions: (1) the material of the first aspheric lens and the second aspheric lens is PMMA or PC, ( 2) The refractive indices of the first aspheric lens and the second aspheric lens are both between 1.47-1.6, (3) the radius of curvature of the surface of the first aspheric lens facing the magnification side of the lens is positive, (4) The curvature radii of the first aspheric lens and the second aspheric lens are the same in the first direction and the second direction. 如請求項1-2中任一項所述之光學鏡頭，其中該光學鏡頭包含一膠合透鏡。The optical lens according to any one of claims 1-2, wherein the optical lens comprises a cemented lens. 如請求項1-2中任一項所述之光學鏡頭，其中由鏡頭放大側到鏡頭縮小側的一方向上，該光學鏡頭滿足下列條件之一：(1)自該方向依序為雙凸、非球面、非球面、新月透鏡，(2)自該方向依序為雙凸、非球面、非球面、雙凸、雙凹透鏡，(3)自該方向依序為新月、非球面、非球面、新月透鏡，(4)自該方向依序為非球面、非球面、非球面、新月透鏡，(5)自該方向依序為非球面、非球面、雙凸、新月、新月透鏡，(6)自該方向依序為非球面、非球面、雙凸、新月透鏡，(7)自該方向依序為非球面、非球面、平凸透鏡。The optical lens as described in any one of claims 1-2, wherein in a direction from the zoom-in side of the lens to the zoom-out side of the lens, the optical lens satisfies one of the following conditions: (1) biconvex, Aspheric, aspheric, crescent lens, (2) biconvex, aspheric, aspheric, biconvex, biconcave lens in sequence from this direction, (3) crescent, aspheric, aspheric lens in sequence from this direction Spherical, crescent lens, (4) aspherical, aspheric, aspheric, crescent lens in sequence from this direction, (5) aspheric, aspheric, biconvex, crescent, new moon lens in sequence from this direction Moon lens, (6) aspheric surface, aspheric surface, biconvex, crescent lens sequentially from this direction, (7) aspheric surface, aspheric surface, plano-convex lens sequentially from this direction. 如請求項1-2中任一項所述之光學鏡頭，其中由鏡頭放大側到鏡頭縮小側的一方向上，該光學鏡頭滿足下列條件之一： (1)自該方向透鏡的屈光度依序分別為正、負、正、正，(2)自該方向透鏡的屈光度依序分別為正、負、正、正、負，(3)自該方向透鏡的屈光度依序分別為正、負、正、負、正，(4)自該方向透鏡的屈光度依序分別為正、負、正。The optical lens according to any one of claims 1-2, wherein the optical lens satisfies one of the following conditions in a direction from the zoom-in side of the lens to the zoom-out side of the lens: (1) The diopters of the lens from this direction are sequentially respectively (2) The diopters of the lens from this direction are respectively positive, negative, positive, positive, and negative. (3) The diopters of the lens from this direction are respectively positive, negative, and positive. , negative, positive, (4) The diopters of the lens from this direction are respectively positive, negative, and positive in sequence. 如請求項1-2中任一項所述之光學鏡頭，其中該光學鏡頭的總長(TTL)小於90mm。The optical lens according to any one of claims 1-2, wherein the total length (TTL) of the optical lens is less than 90mm. 如請求項1-2中任一項所述之光學鏡頭，其中該光學鏡頭滿足下列條件之一：(1) 非球面透鏡的材質為塑膠，(2) 該鏡頭為玻塑混合結構。The optical lens according to any one of Claims 1-2, wherein the optical lens satisfies one of the following conditions: (1) the material of the aspheric lens is plastic, (2) the lens is a glass-plastic hybrid structure.
TW111104106A 2022-01-28 2022-01-28 Optical lens TWI811987B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW111104106A TWI811987B (en) 2022-01-28 2022-01-28 Optical lens
CN202310056525.6A CN116520528A (en) 2022-01-28 2023-01-19 Optical lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW111104106A TWI811987B (en) 2022-01-28 2022-01-28 Optical lens

Publications (2)

Publication Number Publication Date
TW202331330A true TW202331330A (en) 2023-08-01
TWI811987B TWI811987B (en) 2023-08-11

Family

ID=87392814

Family Applications (1)

Application Number Title Priority Date Filing Date
TW111104106A TWI811987B (en) 2022-01-28 2022-01-28 Optical lens

Country Status (2)

Country Link
CN (1) CN116520528A (en)
TW (1) TWI811987B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203773130U (en) * 2011-06-22 2014-08-13 富士胶片株式会社 Imaging lens and imaging device
JP6873741B2 (en) * 2017-02-24 2021-05-19 オリンパス株式会社 Imaging device
CN112666676A (en) * 2019-10-15 2021-04-16 曼德电子电器有限公司 Imaging lens and pixel projection imaging device
TWI717218B (en) * 2020-02-27 2021-01-21 揚明光學股份有限公司 Lens and fabrication method thereof and vehicle lamp

Also Published As

Publication number Publication date
TWI811987B (en) 2023-08-11
CN116520528A (en) 2023-08-01

Similar Documents

Publication Publication Date Title
JP2013536467A (en) High aperture wide angle lens
CN116482836A (en) Image capturing lens and method for manufacturing the same
CN109407274B (en) Day and night confocal optical lens
CN111856708A (en) Image capturing lens and manufacturing method thereof
CN111323895A (en) Lens and manufacturing method thereof
CN113294742B (en) Car light device, projection lens and manufacturing method thereof
CN110687658A (en) Lens and manufacturing method thereof
CN110333591B (en) 0.95mm vehicle-mounted high-definition looking-around optical system and imaging method thereof
JP5825845B2 (en) Imaging lens
JPH10111458A (en) Reflection type image-formation optical system
TW202331330A (en) Optical lens
TWI831882B (en) Zoom projection lens
TWI818095B (en) Optical lens and fabrication method thereof
CN111323893B (en) Lens and method for manufacturing the same
TWI815296B (en) Projection lens
CN110501800B (en) Optical lens
TW202336381A (en) Vehicle projection lens and lamp for vehicle
CN112433346A (en) Large-aperture optical system
TWI819774B (en) Vehicle projection lens
TWI778651B (en) Vehicle projection lens and vehicle lamp
TWI836462B (en) Fixed-focus lens for vehicle projection
CN219997400U (en) Catadioptric ultrashort-focus projection lens
TWI811875B (en) Projection lens and projection apparatus
CN114137691B (en) Day and night shared optical lens group
TW202411753A (en) Vehicle projection lens