TWI416166B - Single focus wide-angle lens module - Google Patents
Single focus wide-angle lens module Download PDFInfo
- Publication number
- TWI416166B TWI416166B TW99138061A TW99138061A TWI416166B TW I416166 B TWI416166 B TW I416166B TW 99138061 A TW99138061 A TW 99138061A TW 99138061 A TW99138061 A TW 99138061A TW I416166 B TWI416166 B TW I416166B
- Authority
- TW
- Taiwan
- Prior art keywords
- lens
- focal length
- angle
- group
- focus wide
- Prior art date
Links
Landscapes
- Lenses (AREA)
Abstract
Description
本發明係涉及光學鏡頭領域，尤指一種用於遊戲機之紅外線波長接收，並可感應影像之四片式單焦點廣角鏡片組。The invention relates to the field of optical lenses, in particular to a four-piece single-focus wide-angle lens group for infrared wavelength reception of a game machine and for sensing images.
現今數位影像技術不斷創新、變化，特別是在數位相機與行動電話等的數位載體皆朝小型化發展，而使感光元件如CCD或CMOS亦被要求更小型化，在紅外線聚焦鏡片應用，除了運用於攝影領域中，近年來亦大量轉用於遊戲機之紅外線接收與感應領域，且為使其遊戲機感應使用者之範圍更寬廣，目前接收紅外線波長之單焦點鏡片組，多半以畫角較大之廣角鏡片組為主流。Nowadays, digital imaging technology is constantly innovating and changing. Especially in digital cameras such as digital cameras and mobile phones, miniaturization is being developed. Photosensitive components such as CCD or CMOS are also required to be more miniaturized. In addition to the application of infrared focusing lenses, In the field of photography, in recent years, it has also been widely used in the field of infrared receiving and sensing of game consoles, and in order to make its game machine more sensitive to users, the single-focus lens group that receives infrared wavelengths is mostly in the angle of drawing. The large wide-angle lens group is the mainstream.
其中，申請人先前亦提出多件有關紅外線波長接收之單焦點廣角鏡片，唯目前遊戲機係以更具立體、真實及臨場感之3D遊戲為主，故就目前或申請人先前之單焦點廣角鏡片組，皆以2D之平面遊戲偵測為訴求，以致於無法滿足3D遊戲側重之縱深感應功效。Among them, the applicant has previously proposed a number of single-focus wide-angle lenses for infrared wavelength reception. However, the current game machine is mainly a 3D game with more stereo, real and realistic feeling, so the current or applicant's previous single focus wide-angle lens The film groups are all based on the 2D game detection, so that they can not meet the depth sensing effect of the 3D game.
再者，有關遊戲機專用之紅外線接收、感應鏡片組，為追求低廉而採用塑膠鏡片，一來材質透光性較差是影響遊戲機縱深偵測精度不足關鍵要素之一，二來塑膠鏡片容易於環境溫度過熱或過冷，以致鏡片組之焦距改變而無法精確對焦偵測，如上所述，乃目前單焦點廣角鏡片組無法滿足3D遊戲縱深距離 精確感應之兩大技術課題。Furthermore, the infrared receiving and sensing lens sets for game machines are made of plastic lenses for the pursuit of low cost. The poor light transmittance of the materials is one of the key factors affecting the depth detection accuracy of the game machine. Secondly, the plastic lenses are easy to be used. The ambient temperature is too hot or too cold, so that the focal length of the lens group changes and the focus cannot be detected accurately. As mentioned above, the single-focus wide-angle lens group cannot meet the depth distance of the 3D game. Two major technical issues of precision sensing.
有鑑於此，如何提供一種精確縱深距離偵測、接收，以及防止鏡片組焦距改變影響縱深偵測效果，遂為單焦點廣角鏡片目前急欲克服之技術瓶頸。In view of this, how to provide an accurate depth-distance detection, reception, and prevent the focal length change of the lens group from affecting the depth detection effect is a technical bottleneck that the single-focus wide-angle lens is currently eager to overcome.
本發明之主要目的係提供一種紅外線感應器之單焦點廣角鏡片組，令該紅外線感應器具有較佳之影像感測功能。The main object of the present invention is to provide a single-focus wide-angle lens group of an infrared sensor, which has a better image sensing function.
本發明目的之一係提供一種具3D縱深精確影像感測之四片式單焦點廣角鏡片組。One of the objects of the present invention is to provide a four-piece single-focus wide-angle lens set with 3D depth-accurate image sensing.
本發明目的之二係提供一種具有較大偵測角及較佳光學性能之四片式單焦點廣角鏡片組。The second object of the present invention is to provide a four-piece single-focus wide-angle lens group having a large detection angle and better optical performance.
本發明目的之三係提供一種主光線角度接近零度之單焦點廣角鏡片組。The third object of the present invention is to provide a single focus wide angle lens group having a principal ray angle close to zero.
為了達成上述目的，本發明提供了一種單焦點廣角鏡片組(二)，該單焦點廣角鏡片組(二)包含有一光欄及一光學組，該光學組包含一第一鏡片、一第二鏡片、一第三鏡片及一第四鏡片，其排列方式從物側至像側之順序為：第一鏡片、光欄、第二鏡片、第三鏡片及第四鏡片。In order to achieve the above object, the present invention provides a single-focus wide-angle lens group (2). The single-focus wide-angle lens group (2) includes a light column and an optical group, and the optical group includes a first lens and a second lens. The third lens and the fourth lens are arranged in the order from the object side to the image side: a first lens, a light bar, a second lens, a third lens and a fourth lens.
其中，該第一鏡片為具有負屈光力之透鏡且朝向像側為凹面，且其至少有一面為非球面。該第二鏡片為具有正屈光力之透鏡且朝向物側為凹面，且該第二鏡片為玻璃鏡片。再者，該第三鏡片為具有正屈光力之彎月形透鏡且朝向物側為凹面，且 其至少有一面為非球面。此外，該第四鏡片為具有正屈光力之透鏡且朝向物側為凸面，且其至少有一面為非球面。Wherein, the first lens is a lens having a negative refractive power and is concave toward the image side, and at least one of the surfaces is aspherical. The second lens is a lens having a positive refractive power and is concave toward the object side, and the second lens is a glass lens. Furthermore, the third lens is a meniscus lens having a positive refractive power and is concave toward the object side, and At least one of its faces is aspherical. Further, the fourth lens is a lens having a positive refractive power and is convex toward the object side, and at least one of the surfaces is aspherical.
藉此，期能有效增加該單焦點廣角鏡片組(二)之偵測角度，同時亦可望使整組鏡片組之主光線角度(CHIEF RAY ANGLE)接近零度，以滿足主光線角度接近零度感測目的外，更能精確、清析的感測到影像縱深，以滿足3D遊戲時使用者動作精確接收、判斷需求。Therefore, the detection angle of the single-focus wide-angle lens group (2) can be effectively increased, and the main ray angle (CHIEF RAY ANGLE) of the entire lens group can be expected to be close to zero to satisfy the main ray angle close to zero. In addition to the purpose of the measurement, it is more accurate and clear to sense the depth of the image to meet the needs of the user's movements in the 3D game.
本發明採用有關合適的實施例並以圖式作為說明，其中，本發明各實施例的數值變化皆屬設計所得，即使其他具有相同結構的產品運用不同數值，仍應屬於本發明的保護範疇，在此先行述明。The present invention adopts the relevant embodiments and is illustrated by the drawings. The numerical changes of the embodiments of the present invention are all designed, and even if other products having the same structure use different values, they should belong to the protection scope of the present invention. Explain first here.
請參考圖1及圖2兩實施例所示之四片式單焦點廣角鏡片組，本發明係一種用以裝置於紅外線感應器前方之單焦點廣角鏡片組(二)。於實施例中，該單焦點廣角鏡片組(二)包含有一光欄1和一光學組，且該光學組包含第一、第二、第三、第四鏡片L1、L2、L3、L4，該鏡片組沿著光軸，從物側A至像側B之排列順序為：第一鏡片L1、光欄1、第二鏡片L2、第三鏡片L3及第四鏡片L4。Referring to the four-piece single-focus wide-angle lens group shown in the two embodiments of FIG. 1 and FIG. 2, the present invention is a single-focus wide-angle lens group (2) for use in front of an infrared sensor. In an embodiment, the single-focus wide-angle lens group (2) includes a light column 1 and an optical group, and the optical group includes first, second, third, and fourth lenses L1, L2, L3, and L4. The lens group is arranged along the optical axis from the object side A to the image side B in the order of the first lens L1, the diaphragm 1, the second lens L2, the third lens L3, and the fourth lens L4.
其中，該第一鏡片L1朝向像側B為凹面，且其具有一面為非球面。該第二鏡片L2為具有正屈光力之透鏡且朝向物側A為凹面。再者，該第三鏡片L3為具有正屈光力之彎月形透 鏡且其朝向物側A為凹面。此外，該第四鏡片L4為具有正屈光力之透鏡且朝向物側A為凸面，且其至少一面為非球面。The first lens L1 has a concave surface toward the image side B, and has one surface aspherical. The second lens L2 is a lens having a positive refractive power and is concave toward the object side A. Furthermore, the third lens L3 is a meniscus having a positive refractive power. The mirror is concave toward the object side A. Further, the fourth lens L4 is a lens having a positive refractive power and has a convex surface toward the object side A, and at least one surface thereof is aspherical.
前述本發明即是由四枚鏡片構成之光學組，而位於第四鏡片L4後方之第一平面平板玻璃2，具有令紅外線穿透之功效。另於像側B前亦再設一第二平面平板玻璃3，該第二平面平板玻璃3具有保護感應器之作用，該第一、第二平面平板玻璃2、3依配適不同封裝結構之紅外線感應器可增、減，達到更佳偵測效果。另於像側B處則配置有一紅外線感應器。The foregoing invention is an optical group consisting of four lenses, and the first flat plate glass 2 located behind the fourth lens L4 has the effect of penetrating infrared rays. A second flat plate glass 3 is further disposed on the front side of the image side B. The second flat plate glass 3 has a function of protecting the electrodes. The first and second flat plate glasses 2 and 3 are adapted to different package structures. Infrared sensors can be added and subtracted for better detection. In addition, an infrared sensor is disposed on the image side B.
同時，本發明之鏡片組中，該第二鏡片L2特別採用玻璃鏡片，其他鏡片則可依需求而採用塑膠或玻璃材質。由於玻璃材質安定、透光率較高，且熱膨脹係數較低，可大幅降低溫度對鏡片組焦距之改變，而可獲得品質較穩定且縱向深度感應、接收更精確之單焦點廣角鏡片組(二)，以滿足更廣泛之3D遊戲需求。不僅如此，本發明之單焦點廣角鏡片組(二)之新穎設計，除了應用於3D遊戲技術領域外，其精確之縱深偵測、接收優點，使用者只需揮動手臂，更可做為電視機頻道切換之偵測、感應。Meanwhile, in the lens group of the present invention, the second lens L2 is particularly made of a glass lens, and the other lenses may be made of plastic or glass according to requirements. Due to the stable glass material, high light transmittance and low thermal expansion coefficient, the temperature can be greatly reduced to the focal length of the lens group, and a single-focus wide-angle lens group with stable quality and longitudinal depth sensing and more accurate reception can be obtained. ) to meet the needs of a wider range of 3D games. Moreover, the novel design of the single-focus wide-angle lens group (2) of the present invention, in addition to being applied to the field of 3D game technology, has the advantages of accurate depth detection and reception, and the user only needs to swing his arm and can also be used as a television set. Channel switching detection and sensing.
另外，本發明之收差圖以非點收差、歪曲收差和球面收差，如圖1A及圖2A所示，無論何種收差圖皆是關於d線的數據資料，而非點收差是關於S像面(SAGITTAL)的數據資料跟關於T像面(TANGENTIAL)數據資料，並將之做示意表現；且由收差圖可清楚獲知，本發明之收差補正都是完整模 擬設計所得，在使用上已沒有任何問題。In addition, the difference graph of the present invention uses non-point difference, distortion and spherical aberration, as shown in FIG. 1A and FIG. 2A, regardless of the difference map, the data of the d line is not collected. The difference is about the data of S image (SAGITTAL) and the data of TANGENTIAL, and it is shown in the figure; and it can be clearly seen from the difference diagram that the compensation of the invention is a complete model. The design proceeds are intended to be used without any problems.
再來，請參照本發明之圖1B及圖2B，所示者分別為本發明第一及第二實施例之非球面數據資料。其中，最上方數據係本發明光學組各鏡片諸元之代號：F.No.：該F值於光學設計時，代表亮度參數，其中F值愈小表示光亮度愈高；畫角：2ω；焦點距離f：f為光學組之合成焦點距離(mm)。Referring to Figures 1B and 2B of the present invention, the aspherical data of the first and second embodiments of the present invention are shown. Wherein, the uppermost data is the code of each lens of the optical group of the present invention: F.No.: the F value represents the brightness parameter in the optical design, wherein the smaller the F value, the higher the brightness; the angle of drawing: 2ω; The focal length f:f is the combined focal length (mm) of the optical group.
而下方1、2、4、5、6、7、8、9、10、11、12、13是物體側起依序的透鏡面號數表示。面號數1、2為第一鏡片L1的二面，面號數4、5為第二鏡片L2的二面，面號數6、7為第三鏡片L3的二面，8、9為第四鏡片L4的二面，10、11、12、13分別為第一平面平板玻璃2及第二平面平板玻璃3的二面。The lower 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13 are the number of lens surface numbers in the order of the object side. The number of faces 1 and 2 is the two faces of the first lens L1, the face numbers 4 and 5 are the two faces of the second lens L2, and the face numbers 6 and 7 are the two faces of the third lens L3, and the numbers 8 and 9 are The two sides of the four lenses L4, 10, 11, 12, 13 are the two sides of the first flat plate glass 2 and the second flat plate glass 3, respectively.
其中要說明的是，該第一鏡片L1之第一面係指圖1B及圖2B面號數1，成像面係指圖1B及圖2B中之IMA(像)。It should be noted that the first surface of the first lens L1 refers to the surface number 1 of FIG. 1B and FIG. 2B, and the imaging surface refers to the IMA (image) of FIG. 1B and FIG. 2B.
本發明為求能改善習知紅外線感應器之聚焦鏡片組之缺點，因此於第一鏡片L1朝向像側B為凹面，第二鏡片L2朝向物側A為凹面，且第三鏡片L3朝向物側A則為凹面，第四鏡片L4朝向物側A為凸面。此外，為求達到最佳品質，本發明必須滿足以下條件： 首先，因第二鏡片L2朝向物側A為凹面，第三鏡片L3 朝向物側A為凹面，因此必須先控制兩鏡片間之焦距比：0<|f2|/|f3|<0.8；其中f2為第二鏡片的焦距值，f3為第三鏡片的焦距值。The present invention is intended to improve the disadvantages of the focusing lens group of the conventional infrared sensor. Therefore, the first lens L1 is concave toward the image side B, the second lens L2 is concave toward the object side A, and the third lens L3 faces the object side. A is a concave surface, and the fourth lens L4 is convex toward the object side A. Furthermore, in order to achieve the best quality, the present invention must satisfy the following conditions: First, since the second lens L2 is concave toward the object side A, the third lens L3 The object side A is concave, so the focal length ratio between the two lenses must be controlled first: 0<|f2|/|f3|<0.8; where f2 is the focal length value of the second lens, and f3 is the focal length value of the third lens.
其次，第三鏡片L3朝向物側A為凹面，而第四鏡面L4朝向物側A為凸面，因此也必須控制兩鏡片間之焦距比，才能與第二鏡片L2及第三鏡片L3之焦距比相互配合：0<|f3|/|f4|<4.0；其中f3為第三鏡片的焦距值，f4為第四鏡片的焦距值。Secondly, the third lens L3 is concave toward the object side A, and the fourth mirror surface L4 is convex toward the object side A. Therefore, it is also necessary to control the focal length ratio between the two lenses to be the focal length ratio of the second lens L2 and the third lens L3. Mutual cooperation: 0<|f3|/|f4|<4.0; where f3 is the focal length value of the third lens, and f4 is the focal length value of the fourth lens.
再者，需控制第一鏡片L1及第二鏡片L2合成的焦距值與第三鏡片L3及第四鏡片L4合成的焦距值比：0.2<|f12|/|f34|<3；其中f12為第一鏡片及第二鏡片合成的焦距值，f34為第三鏡片及第四鏡片合成的焦距值。Furthermore, it is necessary to control the focal length value synthesized by the first lens L1 and the second lens L2 and the focal length ratio of the third lens L3 and the fourth lens L4: 0.2<|f12|/|f34|<3; wherein f12 is the first The focal length value synthesized by one lens and the second lens, and f34 is the focal length value synthesized by the third lens and the fourth lens.
再者，亦需控制第二、三、四鏡片L2、L3、L4之焦距值與整個鏡片組的焦距比：|f234|/|f|<2；其中f為整個鏡片組的焦距值，f234為第二鏡片、第三鏡片及第四鏡片合成的焦距值。Furthermore, it is also necessary to control the focal length ratio of the second, third, and fourth lenses L2, L3, and L4 to the focal length ratio of the entire lens group: |f234|/|f|<2; where f is the focal length value of the entire lens group, f234 The focal length value synthesized for the second lens, the third lens, and the fourth lens.
另外，為求達到高品質成像，而必須控制第一鏡片的第一面到成像面之間的距離：0.1<|f/TL|<0.8；TL為第一鏡片的第一面到成像面之間距離，f為整個鏡片 組的焦距值。In addition, in order to achieve high quality imaging, it is necessary to control the distance from the first side of the first lens to the imaging surface: 0.1 <| f / TL | < 0.8; TL is the first side of the first lens to the imaging surface Distance, f is the entire lens The focus value of the group.
滿足上述光學式，則可令單焦點廣角鏡片組(二)之解像能力顯著提昇，反之，若小於或超出上述光學式之數據值範圍，則會導致單焦點廣角鏡片組(二)之性能、解像力低，以及良率不足等問題。If the above optical mode is satisfied, the resolution of the single-focus wide-angle lens group (2) can be significantly improved. On the contrary, if the optical data value range is less than or exceeds, the performance of the single-focus wide-angle lens group (2) will be caused. , low resolution, and insufficient yield.
此外，本發明光學組之第一至第四鏡片皆具有至少一面為非球面形狀，該非球面的面型須滿足下列公式：
其中z為沿光軸方向在高度為h的位置以表面頂點作參考的位置值；k為錐常度量；c為曲率半徑的倒數；A、B、C、D、E、G、......為高階非球面係數。Where z is the position value with reference to the surface apex at the height h position along the optical axis; k is the cone constant metric; c is the reciprocal of the radius of curvature; A, B, C, D, E, G,... ...is a high-order aspheric coefficient.
綜上所述，本發明之創新發明設計，係運用此光學鏡頭結構第一鏡片L1朝向像側靠近光軸附近為凹面及第二鏡片L2之朝向物側與第三鏡片L3之朝向物側靠近光軸附近處採凹面設計，加之該第三鏡片L4朝向物側為凸面設計，可使得四片式單焦點廣角鏡片組之畫角(即偵測角度)超越先前技藝之角度(本發明之畫角已可達70°以上)，同時亦能維持良好之解像能力。In summary, the inventive design of the present invention utilizes the optical lens structure. The first lens L1 is concave toward the image side near the optical axis, and the object side of the second lens L2 is closer to the object side of the third lens L3. The concave surface design near the optical axis, and the third lens L4 is convex toward the object side, so that the angle of the four-piece single-focus wide-angle lens group (ie, the detection angle) exceeds the prior art angle (the painting of the present invention) The angle has reached 70° or more, and it also maintains a good resolution.
此外，相較於廣角鏡片組之主光線角度(CHIEF RAY ANGLE)過大之問題，本發明可以使主光線角度有效縮小，滿足使用於主光線角度接近零度的感測器之產品安裝需求。In addition, compared with the problem that the chief ray angle (CHIEF RAY ANGLE) of the wide-angle lens group is too large, the present invention can effectively reduce the chief ray angle and meet the product installation requirements of the sensor used for the main ray angle close to zero.
再者，第一至第四鏡片皆可為非球面鏡片，但較佳者係該第二鏡片為玻璃之球面鏡片，非球面鏡片除可提升聚焦之成像解析度等方面優勢，第二鏡片為玻璃材質，更有利於防止高溫時之焦距變動問題，以及更優異之影像縱深感測效果，是以本發明乃屬一新穎並兼具實用、好用進步性之發明設計，遂向鈞局提出發明專利申請，祈請惠予審查並早日賜准專利，至感德便。Furthermore, the first to fourth lenses may each be an aspherical lens, but preferably the second lens is a glass spherical lens, and the aspherical lens has the advantages of enhancing the imaging resolution of the focus, and the second lens is The glass material is more conducive to preventing the problem of focal length variation at high temperatures, and the superior image depth sensing effect is based on the invention, which is a novel and practical and easy to use invention design. Invention patent application, pray for review and early grant of patents, to the sense of virtue.
A‧‧‧物側A‧‧‧ object side
L1‧‧‧第一鏡片L1‧‧‧ first lens
B‧‧‧像側B‧‧‧ image side
1‧‧‧光欄1‧‧‧ ray
2‧‧‧第一平面平板玻璃2‧‧‧ first flat plate glass
3‧‧‧第二平面平板玻璃3‧‧‧Second flat plate glass
L2‧‧‧第二鏡片L2‧‧‧ second lens
L3‧‧‧第三鏡片L3‧‧‧ third lens
L4‧‧‧第四鏡片L4‧‧‧ fourth lens
圖1為本發明單焦點廣角鏡片組(二)之第一實施例之鏡片組成圖。1 is a lens composition diagram of a first embodiment of a single-focus wide-angle lens group (2) of the present invention.
圖1A為本發明單焦點廣角鏡片組(二)之第一實施例之收差圖。1A is a diagram showing the difference of the first embodiment of the single-focus wide-angle lens group (2) of the present invention.
圖1B為本發明單焦點廣角鏡片組(二)之第一實施例之光學特性數據與非球面係數資料示意圖。1B is a schematic view showing optical characteristic data and aspherical coefficient data of a first embodiment of the single-focus wide-angle lens group (2) of the present invention.
圖2為本發明單焦點廣角鏡片組(二)之第二實施例之鏡片組成圖。2 is a lens composition diagram of a second embodiment of the single-focus wide-angle lens group (2) of the present invention.
圖2A為本發明單焦點廣角鏡片組(二)之第二實施例之收差圖。2A is a diagram showing the difference of the second embodiment of the single-focus wide-angle lens group (2) of the present invention.
圖2B為本發明單焦點廣角鏡片組(二)之第二實施例之光學特性數據與非球面係數資料示意圖。2B is a schematic diagram showing optical characteristic data and aspherical coefficient data of a second embodiment of the single-focus wide-angle lens group (2) of the present invention.
A‧‧‧物側A‧‧‧ object side
B‧‧‧像側B‧‧‧ image side
1‧‧‧光欄1‧‧‧ ray
2‧‧‧第一平面平板玻璃2‧‧‧ first flat plate glass
3‧‧‧第二平面平板玻璃3‧‧‧Second flat plate glass
L1‧‧‧第一鏡片L1‧‧‧ first lens
L2‧‧‧第二鏡片L2‧‧‧ second lens
L3‧‧‧第三鏡片L3‧‧‧ third lens
L4‧‧‧第四鏡片L4‧‧‧ fourth lens
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99138061A TWI416166B (en) | 2010-11-05 | 2010-11-05 | Single focus wide-angle lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99138061A TWI416166B (en) | 2010-11-05 | 2010-11-05 | Single focus wide-angle lens module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201219820A TW201219820A (en) | 2012-05-16 |
| TWI416166B true TWI416166B (en) | 2013-11-21 |
Family
ID=46552983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW99138061A TWI416166B (en) | 2010-11-05 | 2010-11-05 | Single focus wide-angle lens module |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI416166B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030161051A1 (en) * | 2002-02-20 | 2003-08-28 | Kenichi Sato | Single focus lens having short overall length |
| TW200842428A (en) * | 2007-04-25 | 2008-11-01 | Largan Precision Co Ltd | Optical lens system for taking image |
| US7538958B2 (en) * | 2006-12-29 | 2009-05-26 | Asia Optical Co., Inc. | Wide-angle lens |
| TW200937065A (en) * | 2008-02-18 | 2009-09-01 | Largan Precision Co Ltd | Optical lens system for taking image |
| TW201027116A (en) * | 2009-01-09 | 2010-07-16 | Newmax Technology Co Ltd | Single focus wide-angle lens module |
-
2010
- 2010-11-05 TW TW99138061A patent/TWI416166B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030161051A1 (en) * | 2002-02-20 | 2003-08-28 | Kenichi Sato | Single focus lens having short overall length |
| US7538958B2 (en) * | 2006-12-29 | 2009-05-26 | Asia Optical Co., Inc. | Wide-angle lens |
| TW200842428A (en) * | 2007-04-25 | 2008-11-01 | Largan Precision Co Ltd | Optical lens system for taking image |
| TW200937065A (en) * | 2008-02-18 | 2009-09-01 | Largan Precision Co Ltd | Optical lens system for taking image |
| TW201027116A (en) * | 2009-01-09 | 2010-07-16 | Newmax Technology Co Ltd | Single focus wide-angle lens module |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201219820A (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8369031B2 (en) | Single focus wide-angle lens module | |
| TWI421532B (en) | Single focus wide-angle lens module | |
| TWI647505B (en) | Four-piece infrared single wavelength lens system | |
| US10459194B2 (en) | Four-piece infrared single wavelength projection lens system | |
| TWI407184B (en) | Six-piece imaging lens module | |
| US11048069B2 (en) | Three-piece infrared single wavelength projection lens system | |
| TWI574041B (en) | Four-piece infrared single wavelength lens assembly | |
| TWI588532B (en) | Four-piece infrared single wavelength lens assembly | |
| TW202001325A (en) | Four-piece infrared single wavelength lens system | |
| TWI631367B (en) | Three-piece infrared single wavelength projection lens system | |
| US10466451B2 (en) | Two-piece infrared single wavelength projection lens system | |
| TWI416166B (en) | Single focus wide-angle lens module | |
| TWI687732B (en) | Three-piece infrared single wavelength projection lens system | |
| TWI710789B (en) | Five-piece infrared single focus lens system | |
| TWI662294B (en) | Four-piece infrared single wavelength lens system | |
| TWI634361B (en) | Four-piece infrared single wavelength lens system | |
| TWI609196B (en) | Four-piece infrared single wavelength lens system | |
| TWI672539B (en) | Three-piece infrared single wavelength projection lens system | |
| TWI413796B (en) | Wide-angle imaging lens module | |
| TW201917442A (en) | Three-piece infrared single wavelength projection lens system | |
| US20190011680A1 (en) | Two-piece infrared single wavelength projection lens system | |
| TWI627462B (en) | Two-piece infrared single wavelength projection lens system | |
| TWI710816B (en) | Five-piece infrared single focus lens system | |
| TWI630434B (en) | Two-piece infrared single wavelength projection lens system | |
| TWI709782B (en) | Four-piece infrared single wavelength lens system |