TW201305641A - Method for adjusting optical system, apparatus for adjusting optical system, and method for adjusting image pickup element - Google Patents
Method for adjusting optical system, apparatus for adjusting optical system, and method for adjusting image pickup element Download PDFInfo
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- TW201305641A TW201305641A TW101112950A TW101112950A TW201305641A TW 201305641 A TW201305641 A TW 201305641A TW 101112950 A TW101112950 A TW 101112950A TW 101112950 A TW101112950 A TW 101112950A TW 201305641 A TW201305641 A TW 201305641A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
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Abstract
Description
本發明係關於一種調整光學系之光學系之調整方法、光學系之調整裝置、及攝影元件之調整方法。 The present invention relates to an adjustment method for an optical system for adjusting an optical system, an adjustment device for an optical system, and a method for adjusting a photographic element.
攝影機之攝影透鏡，保持在保持具(透鏡保持具)之透鏡係複數片組裝於透鏡鏡筒。尤其是，在小型攝影機，大多使用低價且輕量之塑膠製透鏡保持具。以往，對組裝於透鏡鏡筒之光學系評估光學特性，在其評估值未落入容許範圍之情形，藉由調整螺桿等進行透鏡之光軸對準等之調整。 The photographic lens of the camera is assembled in the lens barrel of the lens unit held in the holder (lens holder). In particular, in small cameras, low-cost and lightweight plastic lens holders are often used. Conventionally, in the optical characteristics of the optical system incorporated in the lens barrel, when the evaluation value does not fall within the allowable range, adjustment of the optical axis alignment of the lens or the like is performed by adjusting the screw or the like.
然而，藉由調整螺桿調整安裝在透鏡鏡筒內之透鏡之作業為從透鏡鏡筒外部操作調整螺桿進行之需要熟練度之作業，有耗費不少時間及勞力之問題。同樣之問題在調整安裝於攝影機本體之攝影元件時亦會產生。 However, the operation of adjusting the lens mounted in the lens barrel by adjusting the screw is an operation required to operate the adjusting screw from the outside of the lens barrel, which is a problem that takes a lot of time and labor. The same problem arises when adjusting the photographic elements mounted on the camera body.
為了解決上述問題，本發明例示之第1形態之光學系之調整方法，包含：組裝步驟，將保持光學零件之由塑膠成形構件構成之保持具安裝至鏡筒內以組裝光學系；評估步驟，藉由組裝步驟所組裝之光學系形成既定圖案像，根據形成後之圖案像評估光學系之光學特性；以及修正步驟，根據評估步驟之評估結果，對保持具之既定部位照射雷射光以修正保持具之形狀。 In order to solve the above problems, the optical system adjustment method according to the first aspect of the present invention includes an assembly step of mounting a holder made of a plastic molded member for holding an optical component in a lens barrel to assemble an optical system, and an evaluation step. Forming a predetermined pattern image by the optical system assembled by the assembly step, evaluating the optical characteristics of the optical system according to the formed pattern image; and correcting the step, irradiating the predetermined portion of the holder with the laser light to correct the retention according to the evaluation result of the evaluation step With the shape.
根據本發明第2形態，在第1形態之光學系之調整方法中，較佳為，評估步驟，以攝影裝置拍攝藉由組裝步驟所組裝之光學系形成之既定圖案像產生影像資料，根據該影像資料評估光學系之光學特性。 According to a second aspect of the present invention, in the method of adjusting an optical system according to the first aspect, preferably, in the evaluating step, the imaging device captures a predetermined pattern image formed by the optical system assembled by the photographing step, and the image data is generated. Image data evaluates the optical properties of the optical system.
根據本發明第3形態，在第1或第2形態之光學系之調整方法中，較佳為，修正步驟，以使光學零件之光軸傾斜之方式，對保持具之第1既定部位照射雷射光來修正形狀。 According to a third aspect of the present invention, in the method of adjusting an optical system according to the first aspect or the second aspect, preferably, the correcting step is to illuminate the first predetermined portion of the holder so that the optical axis of the optical component is inclined. Light is used to correct the shape.
根據本發明第4形態，在第3形態之光學系之調整方法中，較佳為，修正步驟，進一步以使光學零件沿著與其光軸大致垂直之面位移之方式，對保持具之與第1既定部位不同之第2既定部位照射雷射光來修正形狀。 According to a fourth aspect of the present invention, in the method of adjusting an optical system according to the third aspect, preferably, the correcting step further shifts the optical member so as to be displaced along a plane substantially perpendicular to the optical axis thereof. 1 The second predetermined portion having a predetermined portion is irradiated with laser light to correct the shape.
根據本發明第5形態，在第1或第2形態之光學系之調整方法中，較佳為，修正步驟，以使光學零件沿著與光學零件之光軸大致垂直之面位移之方式，對保持具之第1既定部位照射雷射光來修正形狀。 According to a fifth aspect of the present invention, in the method of adjusting an optical system according to the first aspect or the second aspect, preferably, the correcting step is such that the optical component is displaced along a plane substantially perpendicular to an optical axis of the optical component. The first predetermined portion of the holder is irradiated with laser light to correct the shape.
根據本發明第6形態，在第5形態之光學系之調整方法中，較佳為，修正步驟，進一步以使光學零件之光軸傾斜之方式，對保持具之與第1既定部位不同之第2既定部位照射雷射光來修正形狀。 According to a sixth aspect of the present invention, in the method of adjusting an optical system according to the fifth aspect, preferably, the correcting step further increases the optical axis of the optical component so that the holder is different from the first predetermined portion. 2 The predetermined part is irradiated with laser light to correct the shape.
根據本發明第7形態，在第1~6中任一形態之光學系之調整方法中，較佳為，既定部位係位於光學零件與鏡筒之間。 According to a seventh aspect of the invention, in the method of adjusting an optical system according to any one of the first to sixth aspect, preferably, the predetermined portion is located between the optical component and the lens barrel.
根據本發明第8形態，在第2~7中任一形態之光學系 之調整方法中，較佳為，修正步驟，藉由雷射光之照射在保持具之既定部位形成槽來修正保持具之形狀。 According to an eighth aspect of the present invention, the optical system according to any one of the second to seventh aspects In the adjustment method, preferably, in the correcting step, the shape of the holder is corrected by forming a groove in a predetermined portion of the holder by irradiation of the laser light.
根據本發明第9形態，在第1形態之光學系之調整方法中，較佳為，作為既定圖案係使用具有複數個圖案之測試圖。 According to a ninth aspect of the present invention, in the method of adjusting an optical system according to the first aspect, it is preferable to use a test pattern having a plurality of patterns as a predetermined pattern.
根據本發明第10形態，在第4形態之光學系之調整方法中，較佳為，光學零件為透鏡；保持具具有保持透鏡之外周部之框部、沿著與透鏡之光軸垂直之面從框部延伸之第1臂部、及沿著與透鏡之光軸垂直之面從第1臂部之側部與第1臂部以既定角度延伸之第2臂部；第1臂部，在其前端部能在與透鏡之光軸垂直之面內擺動地支承於鏡筒；第2臂部，在其前端部固定於鏡筒；修正步驟，作為第1既定部位，對第1臂部之既定位置照射雷射光使第1臂部變形，以使透鏡之光軸傾斜，作為第2既定部位，對第2臂部之既定位置照射雷射光使第2臂部變形，以使既定角度變化。 According to a tenth aspect of the present invention, in the optical system adjustment method of the fourth aspect, the optical component is preferably a lens; and the holder has a frame portion that holds the outer peripheral portion of the lens and a surface perpendicular to the optical axis of the lens. a first arm portion extending from the frame portion and a second arm portion extending from a side portion of the first arm portion and a first arm portion at a predetermined angle along a surface perpendicular to the optical axis of the lens; the first arm portion is The front end portion is rotatably supported by the lens barrel in a plane perpendicular to the optical axis of the lens; the second arm portion is fixed to the lens barrel at the distal end portion thereof; and the correction step is performed as the first predetermined portion to the first arm portion The predetermined position is irradiated with the laser light to deform the first arm portion so that the optical axis of the lens is inclined. As the second predetermined portion, the predetermined position of the second arm portion is irradiated with the laser light to deform the second arm portion to change the predetermined angle.
根據本發明第11形態，在第6形態之光學系之調整方法中，較佳為，光學零件為透鏡；保持具具有保持透鏡之外周部之框部、沿著與透鏡之光軸垂直之面從框部延伸之第1臂部、及沿著與透鏡之光軸垂直之面從第1臂部之側部與第1臂部以既定角度延伸之第2臂部；第1臂部，在其前端部能在與透鏡之光軸垂直之面內擺動地支承於鏡筒；第2臂部，在其前端部固定於鏡筒；修正步驟，作為第1既定部位，對第2臂部之既定位置照射雷射光使第2 臂部變形，以使既定角度變化，作為第2既定部位，對第1臂部之既定位置照射雷射光使第1臂部變形，以使透鏡之光軸傾斜。 According to an eleventh aspect of the invention, in the method of adjusting an optical system according to the sixth aspect, preferably, the optical component is a lens; and the holder has a frame portion that holds the outer peripheral portion of the lens, and a surface perpendicular to the optical axis of the lens a first arm portion extending from the frame portion and a second arm portion extending from a side portion of the first arm portion and a first arm portion at a predetermined angle along a surface perpendicular to the optical axis of the lens; the first arm portion is The front end portion is rotatably supported by the lens barrel in a plane perpendicular to the optical axis of the lens; the second arm portion is fixed to the lens barrel at the front end portion thereof; and the correction step is performed as the first predetermined portion and the second arm portion Illuminating the laser light at a given position makes the second The arm portion is deformed so as to change the predetermined angle, and the first predetermined portion is irradiated with the laser beam at a predetermined position of the first arm portion to deform the first arm portion so that the optical axis of the lens is inclined.
根據本發明第12形態，在第1~11中任一形態之光學系之調整方法中，較佳為，塑膠成形構件係藉由射出成形方法成形之塑膠構件。 According to a twelfth aspect of the invention, in the method of adjusting an optical system according to any one of the first to eleventh aspects, the plastic molded member is preferably a plastic member formed by an injection molding method.
根據本發明第13形態，在第1~12中任一形態之光學系之調整方法中，較佳為，保持具為保持數位攝影機之攝影透鏡之透鏡保持零件。 According to a thirteenth aspect of the invention, in the method of adjusting an optical system according to any one of the first to twelfth aspects, preferably, the holder is a lens holding member that holds an imaging lens of the digital camera.
本發明第14形態之數位攝影機，具備收納具有光學零件之光學系之鏡筒，該光學零件係保持在藉由第13形態之光學系之調整方法修正形狀後之保持具。 A digital camera according to a fourteenth aspect of the present invention includes a lens barrel that houses an optical system having an optical component, and the optical component is held by the optical device according to the thirteenth aspect.
本發明第15形態之光學系之調整裝置，具備：支承手段，固定支承收納具有光學零件之光學系之鏡筒，該光學零件係保持在由塑膠成形構件構成之保持具；攝影手段，拍攝收納在支承手段所支承之鏡筒之光學系產生之既定圖案像以產生影像資料；評估手段，根據攝影手段所產生之影像資料評估光學系之光學特性；以及雷射光照射手段，根據評估手段之評估結果，對由塑膠成形構件構成之保持具之既定部位照射雷射光以修正保持具之形狀。 An optical system adjusting device according to a fifteenth aspect of the present invention includes: a supporting means for fixedly supporting and accommodating a lens barrel having an optical component of an optical component, wherein the optical component is held by a holder formed of a plastic molding member; and a photographing means, photographing and housing The optical system of the lens barrel supported by the supporting means generates a predetermined pattern image to generate image data; the evaluation means evaluates the optical characteristics of the optical system according to the image data generated by the photographic means; and the laser light irradiation means is evaluated according to the evaluation means As a result, the predetermined portion of the holder composed of the plastic molded member is irradiated with the laser light to correct the shape of the holder.
本發明第16形態之攝影元件之調整方法，包含：安裝步驟，將保持攝影元件之由塑膠成形構件構成之保持具安裝至攝影機本體；評估步驟，在攝影元件與既定圖案像之間配置光學系並拍攝既定圖案，根據該攝影元件所形成之 圖案像評估攝影元件之攝影特性；以及修正步驟，根據評估步驟之評估結果，對保持具之既定部位照射雷射光以修正保持具之形狀。 A method of adjusting a photographic element according to a sixteenth aspect of the present invention, comprising: an attaching step of attaching a holder formed of a plastic molded member holding the photographic element to a camera body; and an evaluation step of arranging an optical system between the photographic element and the predetermined pattern image And taking a predetermined pattern, which is formed according to the photographic element The pattern image is used to evaluate the photographic characteristics of the photographic element; and a correction step is performed to illuminate the predetermined portion of the holder to correct the shape of the holder according to the evaluation result of the evaluation step.
根據本發明之光學系之調整方法及調整裝置，在包含由塑膠成形構件構成之保持具所保持之光學零件之光學系組裝於鏡筒內之狀態下評估光學特性，根據該評估結果對保持具之既定部位照射雷射光來修正保持具之形狀，因此能簡單地進行光學系之調整。 According to the optical system adjusting method and the adjusting device of the present invention, the optical characteristics are evaluated in a state in which the optical system including the optical member held by the holder made of the plastic molded member is assembled in the lens barrel, and the holder is evaluated based on the evaluation result. Since the predetermined portion irradiates the laser light to correct the shape of the holder, the adjustment of the optical system can be easily performed.
以下，參照圖式說明本發明實施形態之光學系之調整方法(以下，調整方法)及光學系之調整裝置(以下，調整裝置)之構成。 Hereinafter, the configuration of the optical system adjustment method (hereinafter, the adjustment method) and the optical system adjustment device (hereinafter, the adjustment device) according to the embodiment of the present invention will be described with reference to the drawings.
如圖1所示，調整裝置1為調整攝影機用之攝影透鏡鏡筒之光學系20者，具備載置並固定支承透鏡鏡筒10之支承台2、攝影裝置3、評估裝置4、照射控制裝置5、及作為雷射光照射手段之雷射標示器6。 As shown in FIG. 1, the adjustment device 1 is an optical system 20 for adjusting a photographic lens barrel for a camera, and includes a support table 2 for mounting and fixing the lens barrel 10, an imaging device 3, an evaluation device 4, and an irradiation control device. 5. A laser marker 6 as a means of laser light irradiation.
攝影裝置在內部具有攝影面，測試圖7之像係藉由固定指示在支承台2之光學系20成像在攝影面。攝影裝置從成像之像產生影像資料。 The photographing apparatus has a photographing surface inside, and the image of the test chart 7 is imaged on the photographing surface by the optical system 20 of the support table 2 by a fixed indication. The photographing device generates image data from the imaged image.
評估裝置4根據影像資料與基準影像資料之比較，算出關於光學系20之傾斜量及偏移量之評估資料。 The evaluation device 4 calculates evaluation information on the amount of tilt and the amount of shift of the optical system 20 based on the comparison between the image data and the reference image data.
照射控制裝置5根據評估裝置4算出之評估資料，算 出雷射標示器6照射之雷射光之照射條件，以該照射條件照射雷射光之方式控制雷射標示器6。亦即，分別設定用以修正傾斜量之傾斜修正用之雷射光照射條件與用以修正偏移量之偏移修正用之雷射光照射條件，以該等照射條件照射雷射光之方式控制雷射標示器6。 The irradiation control device 5 calculates the evaluation data calculated by the evaluation device 4 The laser pointer is irradiated with the laser light irradiated by the laser marker 6, and the laser marker 6 is controlled by irradiating the laser light under the irradiation condition. That is, the laser light irradiation conditions for the tilt correction for correcting the tilt amount and the laser light irradiation conditions for the offset correction for correcting the offset amount are respectively set, and the laser light is irradiated by irradiating the laser light under the irradiation conditions. Marker 6.
雷射光照射條件為關於例如雷射光之輸出值、照射範圍、照射次數、照射時間、進行脈衝照射時之能率比等之值。此等項目之值與修正之傾斜量及偏移量個別之關係，係作為雷射光照射條件表在調整裝置內準備。 The laser light irradiation conditions are values such as an output value of the laser light, an irradiation range, an irradiation number, an irradiation time, an energy ratio at the time of pulse irradiation, and the like. The relationship between the value of these items and the corrected tilt amount and offset is prepared in the adjustment device as a laser light irradiation condition table.
雷射標示器6為例如碳酸氣體雷射(CO2雷射)，根據照射控制裝置5之控制將雷射光L1照射至第1透鏡保持具12之既定部位121。雷射標示器6可在與光學系20之光軸垂直之面內往上下左右方向移動。 The laser marker 6 is, for example, a carbon dioxide gas laser (CO 2 laser), and the laser beam L1 is irradiated to the predetermined portion 121 of the first lens holder 12 under the control of the irradiation control device 5. The laser marker 6 is movable in the up, down, left, and right directions in a plane perpendicular to the optical axis of the optical system 20.
接著，參照圖1及圖8說明使用上述調整裝置1之調整方法。 Next, an adjustment method using the above-described adjustment device 1 will be described with reference to Figs. 1 and 8 .
在調整之透鏡鏡筒10收納有保持第1透鏡11之第1透鏡保持具12、保持第2透鏡21之第2透鏡保持具22、及保持第3透鏡31之第3透鏡保持具32。第1、第2、第3透鏡11,21,31構成攝影光學系20。此外，圖1中，為求簡單，僅以三個凸透鏡11,21,31顯示光學系20，除此以外之透鏡係省略圖示。 In the lens barrel 10 to be adjusted, the first lens holder 12 that holds the first lens 11 , the second lens holder 22 that holds the second lens 21 , and the third lens holder 32 that holds the third lens 31 are housed. The first, second, and third lenses 11, 21, and 31 constitute the photographic optical system 20. In addition, in FIG. 1, for the sake of simplicity, the optical system 20 is shown by only three convex lenses 11, 21, 31, and the other lens is abbreviate|omitted.
第1、第2、第3透鏡保持具12,22,32皆為藉由射出成型機射出成形之塑膠成形品。此等透鏡保持具12,22,32 之各個，呈縱長平板狀，其一端保持第1、第2、第3透鏡11,21,31，另一端安裝在透鏡鏡筒10之內周部。 Each of the first, second, and third lens holders 12, 22, and 32 is a plastic molded article that is injection molded by an injection molding machine. These lens holders 12, 22, 32 Each of them has a vertically long flat shape, and one end of the first, second, and third lenses 11, 21, 31 is held at one end, and the other end is attached to the inner peripheral portion of the lens barrel 10.
在此等透鏡保持具12,22,32分別安裝透鏡11,21,31(步驟S1)。接著，將透鏡保持具12,22,32安裝在透鏡鏡筒10之內周部。此等透鏡保持具之安裝係以各透鏡11,21,31之各個之光軸與光學系20之光軸A0大致一致之方式進行(步驟S2)。 The lenses 11, 12, 31 are attached to the lens holders 12, 22, 32, respectively (step S1). Next, the lens holders 12, 22, 32 are attached to the inner peripheral portion of the lens barrel 10. The mounting of the lens holders is performed such that the optical axes of the respective lenses 11, 21, 31 substantially coincide with the optical axis A0 of the optical system 20 (step S2).
透鏡之光軸之傾斜對光學系20之光學性能、亦即像差等之影響在構成光學系之各透鏡不相等。即使各透鏡11,21,31之傾斜量相等，因各透鏡11,21,31之功率或相對位置等，傾斜對光學性能之影響亦不同。本實施形態中，第1透鏡11，在構成光學系20之所有透鏡中功率最強，其傾斜量對光學系20之光學性能影響最大，因此，本實施形態中，修正第1透鏡11之傾斜。 The effect of the tilt of the optical axis of the lens on the optical performance of the optical system 20, i.e., aberrations, is not equal to the lenses that make up the optical system. Even if the tilt amounts of the respective lenses 11, 21, 31 are equal, the influence of the tilt on the optical performance differs depending on the power or relative position of the respective lenses 11, 21, 31 and the like. In the present embodiment, the first lens 11 has the strongest power among all the lenses constituting the optical system 20, and the amount of tilt has the greatest influence on the optical performance of the optical system 20. Therefore, in the present embodiment, the inclination of the first lens 11 is corrected.
接著，將透鏡鏡筒10固定在調整裝置1之支承台2(步驟S3)。在此狀態下，拍攝設置在透鏡鏡筒10前方(圖中右側)之既定圖案之測試圖7。亦即，藉由光學系20拍攝測試圖以形成既定圖案像。 Next, the lens barrel 10 is fixed to the support table 2 of the adjustment device 1 (step S3). In this state, a test chart 7 of a predetermined pattern disposed in front of the lens barrel 10 (on the right side in the drawing) is taken. That is, the test pattern is taken by the optical system 20 to form a predetermined pattern image.
再次參照圖1，光學系20使測試圖7之像70成像在攝影裝置3之攝影面，攝影裝置3拍攝像70產生攝影影像資料(步驟S4)。評估裝置4具有預先儲存表示測試圖7之基準影像資料之記憶部，比較儲存在此記憶部之基準影像資料與來自攝影裝置3之攝影影像資料。接著，檢測濃淡圖案70a~70d(本實施形態中，濃淡圖案70a)之解像度及變形， 算出關於此解像度及變形之評估資料(步驟S5)。 Referring again to Fig. 1, the optical system 20 images the image 70 of the test chart 7 on the photographing surface of the photographing device 3, and the photographing device 3 photographs the image 70 to generate photographed image data (step S4). The evaluation device 4 has a memory portion in which the reference image data indicating the test chart 7 is stored in advance, and compares the reference image data stored in the memory portion with the photographic image data from the photographing device 3. Next, the resolution and deformation of the shading patterns 70a to 70d (in the present embodiment, the shading pattern 70a) are detected. The evaluation information on the resolution and the deformation is calculated (step S5).
接著，根據在步驟S5算出之評估資料，評估光學系20之光學特性是否落入容許範圍(步驟S6)。 Next, based on the evaluation data calculated in step S5, it is evaluated whether or not the optical characteristics of the optical system 20 fall within the allowable range (step S6).
圖2(a)係顯示測試圖7。測試圖7，在圖面之右上、左上、左下、右下之四個區域分別具有濃淡圖案7a,7b,7c,7d。測試圖7之右上區域及左下區域之濃淡圖案7a為橫條紋，左上區域及右下區域之濃淡圖案7b為縱條紋。測試圖7係藉由不同方向之條紋構成，但使用條紋方向全部相同之測試圖亦可。 Figure 2(a) shows the test chart 7. In Fig. 7, four regions on the upper right, upper left, lower left, and lower right sides of the drawing have shading patterns 7a, 7b, 7c, and 7d, respectively. The shading pattern 7a of the upper right area and the lower left area of Fig. 7 is a horizontal stripe, and the shading pattern 7b of the upper left area and the lower right area is a vertical stripe. The test Fig. 7 is composed of stripes in different directions, but the test patterns in which the stripe directions are all the same may be used.
圖2(b)係以示意方式顯示藉由光學系20形成之測試圖7之像70。像70之濃淡圖案70a~70d與圖2(a)之測試圖7之濃淡圖案7a~7d分別對應。像70中，濃淡圖案70a為相較於其他濃淡圖案70b~70d解像度降低之圖案。其原因在於，光學系20之調整不良、亦即第1透鏡保持具12之安裝不良，具體而言，第1透鏡11之光軸相對於光學系20之光軸A0傾斜之傾斜。其他濃淡圖案70b~70d大致正確地再現測試圖7之濃淡圖案7b~7d。 Fig. 2(b) shows the image 70 of Fig. 7 formed by the optical system 20 in a schematic manner. The shading patterns 70a to 70d of 70 are respectively corresponding to the shading patterns 7a to 7d of the test chart 7 of Fig. 2(a). In the image 70, the shading pattern 70a is a pattern in which the resolution is lowered as compared with the other shading patterns 70b to 70d. This is because the adjustment of the optical system 20 is poor, that is, the mounting failure of the first lens holder 12, and specifically, the optical axis of the first lens 11 is inclined obliquely with respect to the optical axis A0 of the optical system 20. The other shade patterns 70b to 70d substantially correctly reproduce the shade patterns 7b to 7d of the test chart 7.
以下，詳細說明第1透鏡11之傾斜量及傾斜方向與像70之濃淡圖案70a~70d之解像度降低及變形之關係。隨著第1透鏡11之傾斜量變大、亦即隨著第1透鏡11之光軸與光學系20之光軸A0之偏移角變大，濃淡圖案70a~70d之解像度降低且變形亦變大。又，第1透鏡11之傾斜方向決定解像度降最低且變形最大之濃淡圖案70a~70d。 Hereinafter, the relationship between the tilt amount and the tilt direction of the first lens 11 and the resolution reduction and deformation of the shading patterns 70a to 70d of the image 70 will be described in detail. As the amount of tilt of the first lens 11 increases, that is, as the angle of deviation between the optical axis of the first lens 11 and the optical axis A0 of the optical system 20 increases, the resolution of the shade patterns 70a to 70d decreases and the deformation also becomes large. . Further, the inclination direction of the first lens 11 determines the shade patterns 70a to 70d having the lowest resolution and the maximum distortion.
是以，藉由評估關於解像度降低或變形大小之評估資 料，可判斷光學系20之光學特性是否落入容許範圍。在判斷光學系20之光學特性落入容許範圍之情形，判斷光學系20之光學特性良好，結束評估(步驟11)。 Therefore, by evaluating the evaluation of the reduction in the resolution or the size of the deformation It can be judged whether or not the optical characteristics of the optical system 20 fall within the allowable range. When it is judged that the optical characteristics of the optical system 20 fall within the allowable range, it is judged that the optical characteristics of the optical system 20 are good, and the evaluation is ended (step 11).
在光學系20之光學特性未落入容許範圍之情形，根據該評估資料，可知第1透鏡11之傾斜之應修正量，且根據解像度之降低或變形最大產生之濃淡圖案之評估結果，可知第1透鏡11之傾斜方向(步驟S7)。本實施形態中，由於第1透鏡11保持在縱長平板狀之第1透鏡保持具12，因此傾斜方向限定在特定之一方向。 In the case where the optical characteristics of the optical system 20 do not fall within the allowable range, based on the evaluation data, the correction amount of the inclination of the first lens 11 can be known, and the evaluation result of the shading pattern generated by the reduction of the resolution or the maximum deformation can be known. The tilt direction of the lens 11 (step S7). In the present embodiment, since the first lens 11 is held by the first lens holder 12 having a vertically long flat shape, the inclination direction is limited to a specific one direction.
圖2(b)之像70之濃淡圖案70a~70d中，為了表示第1透鏡保持具12之安裝不良之影響而使圖單純化，顯示為僅濃淡圖案70a解像度降低，但實際上濃淡圖案70a解像度大幅降低且產生較大變形。在此時，其他濃淡圖案70b~70d亦產生相對應之解像度降低或變形。 In the shading patterns 70a to 70d of the image 70 of Fig. 2(b), in order to show the influence of the mounting failure of the first lens holder 12, the figure is simplified, and the resolution of the shading pattern 70a is reduced, but the shading pattern 70a is actually The resolution is greatly reduced and a large deformation occurs. At this time, the other shade patterns 70b to 70d also have a corresponding resolution reduction or deformation.
接著，說明判斷光學系20之光學特性未落入容許範圍之情形。根據在步驟7算出之應修正傾斜量，照射控制裝置5從雷射光照射條件表設定傾斜修正用之雷射光照射條件。藉此，設定從雷射標示器6照射之雷射光之輸出值、照射範圍、照射次數、照射時間、進行脈衝照射時之能率比等之值(步驟S8)。 Next, a case where it is judged that the optical characteristics of the optical system 20 do not fall within the allowable range will be described. The irradiation control device 5 sets the laser light irradiation condition for the tilt correction from the laser light irradiation condition table based on the corrected tilt amount calculated in step 7. Thereby, the output value of the laser light irradiated from the laser marker 6, the irradiation range, the number of irradiations, the irradiation time, the energy ratio at the time of pulse irradiation, and the like are set (step S8).
接著，以雷射光照射至第1透鏡保持具12之既定部位之方式，使雷射標示器6移動至照射位置(步驟S9)。 Next, the laser marker 6 is moved to the irradiation position so that the laser beam is irradiated to a predetermined portion of the first lens holder 12 (step S9).
接著，從雷射標示器6對第1透鏡保持具12之既定部位照射雷射光以使第1透鏡保持具12變形(步驟S10)。藉 由此變形修正、亦即調整第1透鏡11之傾斜。既定部位121係考慮第1透鏡保持具12之形狀、尺寸及第1透鏡保持具12保持之透鏡之特性等而事前決定。此外，本實施形態中，照射此雷射光之既定部位121，如圖3(a)所示，設定成位於臂部12b與框部12a之邊界附近之臂部12b上。 Next, the laser beam is irradiated from a predetermined portion of the first lens holder 12 from the laser marker 6 to deform the first lens holder 12 (step S10). borrow Thereby, the deformation is corrected, that is, the inclination of the first lens 11 is adjusted. The predetermined portion 121 is determined in advance in consideration of the shape and size of the first lens holder 12 and the characteristics of the lens held by the first lens holder 12. Further, in the present embodiment, the predetermined portion 121 irradiated with the laser light is set to be located on the arm portion 12b near the boundary between the arm portion 12b and the frame portion 12a as shown in Fig. 3(a).
上述雷射光照射進行之第1透鏡11之傾斜調整之後，藉由光學系20以攝影裝置3再次拍攝測試圖7之像，產生攝影影像資料(步驟S4)。 After the tilt adjustment of the first lens 11 by the laser light irradiation, the image of the test chart 7 is again captured by the imaging device 3 by the optical system 20, and photographic image data is generated (step S4).
再者，藉由評估裝置4算出評估資料(步驟S5)。根據評估資料，確認光學系20之光學特性是否落入容許範圍(步驟S6)。如果，光學系20之光學特性未落入容許範圍之情形，反覆步驟7以後，除了對第1透鏡保持具12施加微調整之變形外，亦可進行第1透鏡11之傾斜微調整。 Furthermore, the evaluation information is calculated by the evaluation device 4 (step S5). Based on the evaluation data, it is confirmed whether or not the optical characteristics of the optical system 20 fall within the allowable range (step S6). If the optical characteristics of the optical system 20 do not fall within the allowable range, after the step 7 is repeated, in addition to the deformation of the first lens holder 12, the tilt adjustment of the first lens 11 can be performed.
接著，詳細說明對第1透鏡保持具12之雷射光照射與透鏡保持具之變形。 Next, the laser light irradiation of the first lens holder 12 and the deformation of the lens holder will be described in detail.
圖3(a)係顯示射出成形後時點之第1透鏡保持具12之具體形狀，圖3(b)係顯示使雷射光L1照射至臂部12b之部位121後之第1透鏡保持具12。 Fig. 3(a) shows the specific shape of the first lens holder 12 at the time after injection molding, and Fig. 3(b) shows the first lens holder 12 after the laser light L1 is irradiated to the portion 121 of the arm portion 12b.
圖3(a)中，第1透鏡保持具12具有保持第1透鏡11之外周之框部12a與和框部12a連接之臂部12b，此等框部12a與臂部12b，在射出成形時沿著一點鏈線所示之直線130延伸。 In Fig. 3(a), the first lens holder 12 has a frame portion 12a that holds the outer periphery of the first lens 11 and an arm portion 12b that is connected to the frame portion 12a. These frame portions 12a and the arm portions 12b are formed at the time of injection molding. Extending along a line 130 as indicated by a little chain line.
此種第1透鏡保持具12，以臂部12b之前端部140安裝於透鏡鏡筒10之內周部時，為了相對於透鏡鏡筒內周部 稍微傾斜地安裝，使第1透鏡11之光軸A1相對於光學系20之光軸A0稍微傾斜。為了修正此種第1透鏡11之光軸A1之傾斜，對臂部12b之部位121從雷射標示器6照射雷射光L1以使第1透鏡保持具12變形。 The first lens holder 12 is attached to the inner peripheral portion of the lens barrel 10 when the front end portion 140 of the arm portion 12b is attached to the inner peripheral portion of the lens barrel. Mounted slightly obliquely, the optical axis A1 of the first lens 11 is slightly inclined with respect to the optical axis A0 of the optical system 20. In order to correct the inclination of the optical axis A1 of the first lens 11, the portion 121 of the arm portion 12b is irradiated with the laser light L1 from the laser marker 6 to deform the first lens holder 12.
進一步詳細說明雷射光L1之照射。圖3(a)及圖4(a)及(b)中，雷射光L1以橫越臂部之寬度方向之方式掃描照射臂部12b之照射部位121，藉由此照射，如圖4(b)所明示，在臂部12b之照射部位121之表面附近形成淺槽、亦即刻線120。刻線120將臂部12b在寬度方向從其一端橫越至另一端。此種雷射光L1之掃描照射形成之刻線120，相隔既定間隔彼此平行地形成複數條。 The irradiation of the laser light L1 will be described in further detail. In Fig. 3 (a) and Figs. 4 (a) and (b), the laser light L1 scans the irradiation portion 121 of the irradiation arm portion 12b so as to traverse the width direction of the arm portion, thereby irradiating it, as shown in Fig. 4 (b). It is to be noted that a shallow groove, that is, a score line 120 is formed in the vicinity of the surface of the irradiation portion 121 of the arm portion 12b. The score line 120 traverses the arm portion 12b from one end to the other end in the width direction. The scanning line formed by the scanning light of the laser light L1 forms a plurality of lines 120 which are parallel to each other at a predetermined interval.
複數條刻線120，例如，以等間隔0.14mm彼此平行地形成。線寬較佳為0.05mm~0.5mm之範圍。此種複數條刻線120之形成，可藉由雷射標示器6使雷射光L1在透鏡保持具12之長邊方向逐步微量偏向射出來形成，亦可藉由使雷射標示器6之位置在透鏡保持具12之長邊方向逐步微量移動並照射雷射光L1來形成。此外，刻線120不限於線狀槽，為不連續之槽，例如連續小孔亦可。 The plurality of scribe lines 120 are formed, for example, in parallel with each other at equal intervals of 0.14 mm. The line width is preferably in the range of 0.05 mm to 0.5 mm. The formation of the plurality of scribe lines 120 can be formed by the laser marker 6 causing the laser light L1 to be gradually deflected in the longitudinal direction of the lens holder 12, or by positioning the laser marker 6. It is formed by gradually moving a small amount in the longitudinal direction of the lens holder 12 and irradiating the laser light L1. Further, the scribe line 120 is not limited to the linear groove, and may be a discontinuous groove, such as a continuous small hole.
藉由此種雷射光照射形成之複數條刻線120之形成，如圖3(b)所示，第1透鏡保持具12在照射部位121附近變形，框部12a相對於直線130傾斜既定角度。藉由框部12a之傾斜，第1透鏡11之光軸A1傾斜既定角度，與光學系20之光軸A0大致一致。如此，第1透鏡11之傾斜調整，係在第1透鏡保持具12安裝在透鏡鏡筒10之狀態下進行。 As a result of the formation of the plurality of scribe lines 120 formed by such laser light irradiation, as shown in FIG. 3(b), the first lens holder 12 is deformed in the vicinity of the irradiation portion 121, and the frame portion 12a is inclined at a predetermined angle with respect to the straight line 130. The optical axis A1 of the first lens 11 is inclined by a predetermined angle by the inclination of the frame portion 12a, and substantially coincides with the optical axis A0 of the optical system 20. In this way, the tilt adjustment of the first lens 11 is performed in a state where the first lens holder 12 is attached to the lens barrel 10.
雷射光照射導致之第1透鏡保持具12之變形量、具體而言框部12a之傾斜角度，係藉由刻線120之條數或刻線120之寬度或深度等決定。具體而言，藉由使刻線120之條數增加、使刻線120之寬度變大、使刻線120之深度變大等，能使上述傾斜角度變大。 The amount of deformation of the first lens holder 12 caused by the laser light irradiation, specifically, the inclination angle of the frame portion 12a is determined by the number of the scribe lines 120 or the width or depth of the reticle 120. Specifically, the angle of inclination can be increased by increasing the number of the scribe lines 120, increasing the width of the reticle 120, and increasing the depth of the reticle 120.
圖5係用以說明藉由雷射光照射使塑膠成型品變形之原因之圖，將第1透鏡保持具12在照射部位121之部分剖面放大顯示。 Fig. 5 is a view for explaining the reason why the plastic molded article is deformed by laser irradiation, and the partial cross section of the first lens holder 12 at the irradiation portion 121 is enlarged and displayed.
圖5(a)係顯示在雷射光照射前殘留在塑膠成形品即第1透鏡保持具12之內部應力分布，圖5(b)係顯示藉由雷射光照射在圖5(a)之狀態之第1透鏡保持具12形成複數條刻線120後之內部應力分布。此等內部應力分布係以等高線狀之條紋101表示，具有相同應力值之位置係以一條線連結。產生此種應力分布之原因在於，在第1透鏡保持具12成形時之模具內之熔融塑膠壓力或在冷卻過程之冷卻速度等。 Fig. 5(a) shows the internal stress distribution remaining in the plastic molded article, that is, the first lens holder 12 before the laser light irradiation, and Fig. 5(b) shows the state in which the laser light is irradiated in the state of Fig. 5(a). The internal stress distribution after the first lens holder 12 forms the plurality of scribe lines 120. These internal stress distributions are represented by contour strips 101, and positions having the same stress value are connected by a line. The reason why such a stress distribution occurs is the pressure of the molten plastic in the mold at the time of molding the first lens holder 12 or the cooling rate during the cooling process.
圖5(a)中，第1透鏡保持具12之內部應力分布在上面12A之側與下面12B之側大致對稱，由於在上面與下面之應力均衡，因此透鏡保持具12之上面12A及下面12B為彼此平行之平面。相對於此，如圖5(b)所示，若僅在第1透鏡保持具12之上面12A形成刻線120，則上面12A側之應力解放之結果，上面12A產生彎曲成凹面形狀之形狀變化。 In Fig. 5(a), the internal stress distribution of the first lens holder 12 is substantially symmetrical on the side of the upper surface 12A and the side of the lower surface 12B, and the upper surface 12A and the lower surface 12B of the lens holder 12 are balanced by the stresses on the upper surface and the lower surface. Plane parallel to each other. On the other hand, as shown in FIG. 5(b), when the reticle 120 is formed only on the upper surface 12A of the first lens holder 12, the upper surface 12A is deformed by the stress of the upper surface 12A. .
此種形狀變化之程度，在相同材料、相同尺寸之塑膠構件，根據雷射標示器6之雷射光照射條件變化。主要之照射條件為雷射之輸出值、照射範圍(刻線區域之面積)、照 射時間。如上述，藉由使刻線120之寬度或深度變大、或使刻線120之條數增加，可獲得較大之形狀變化。再者，藉由將圖4、圖5所示之複數條刻線120相隔既定間隔形成在複數個部位，亦可獲得更大之形狀變化。 The degree of such shape change is varied in accordance with the laser light irradiation conditions of the laser marker 6 in the same material and the same size of the plastic member. The main irradiation conditions are the output value of the laser, the irradiation range (the area of the engraved area), and the photo. Shoot time. As described above, a large shape change can be obtained by making the width or depth of the score line 120 large or increasing the number of the score lines 120. Further, by forming the plurality of scribe lines 120 shown in Figs. 4 and 5 at a plurality of locations at a predetermined interval, a larger shape change can be obtained.
如上述，藉由對第1透鏡保持具12之雷射光照射，第1透鏡保持具12變形，第1透鏡11之光軸調整成與光學系20之光軸A0一致。藉由以上述方式調整之光學系20形成之測試圖7之像70，圖2(b)所示之像70之右上區域之濃淡圖案70a表示為明瞭圖案，解像度較雷射光照射前高。 As described above, the first lens holder 12 is deformed by the laser light irradiation of the first lens holder 12, and the optical axis of the first lens 11 is adjusted to coincide with the optical axis A0 of the optical system 20. The image 70 of the test chart 7 formed by the optical system 20 adjusted in the above manner, the shade pattern 70a of the upper right region of the image 70 shown in Fig. 2(b) is shown as a clear pattern, and the resolution is higher than that before the laser light is irradiated.
圖6係概略顯示數位攝影機之內部構成之圖。數位攝影機100收納具有以本實施形態之調整裝置1調整後之光學系20之透鏡鏡筒10、攝影元件111、電子觀景窗112。作為攝影透鏡係使用透鏡鏡筒10內之光學系20。藉由本實施形態之光學系之調整方法調整光學系20之光軸，因此可獲得高畫質之攝影影像。 Fig. 6 is a view schematically showing the internal structure of a digital camera. The digital camera 100 houses the lens barrel 10, the imaging element 111, and the electronic viewing window 112 having the optical system 20 adjusted by the adjustment device 1 of the present embodiment. The optical system 20 in the lens barrel 10 is used as a photographic lens system. Since the optical axis of the optical system 20 is adjusted by the optical system adjustment method of the present embodiment, a high-quality photographic image can be obtained.
根據本實施形態之調整裝置1及光學系之調整方法，可達到下述作用效果。 According to the adjusting device 1 and the optical system adjusting method of the present embodiment, the following effects can be obtained.
(1)在將分別保持第1、第2、第3透鏡11,21,31之第1、第2、第3透鏡保持具12,22,32等安裝在透鏡鏡筒10之狀態下，藉由對第1透鏡保持具12之雷射光照射可調整第1透鏡11之光軸之傾斜，可簡單地進行調整作業。 (1) In the state in which the first, second, and third lens holders 12, 22, 32 and the like holding the first, second, and third lenses 11, 21, 31 are respectively attached to the lens barrel 10, The inclination of the optical axis of the first lens 11 can be adjusted by the irradiation of the laser light to the first lens holder 12, and the adjustment work can be easily performed.
(2)在將所有透鏡組裝在透鏡鏡筒10之狀態下評估光學系20之光學性能，根據該評估資料對第1透鏡保持具12進行雷射光照射，調整第1透鏡11之光軸之傾斜，因此調 整作業可自動化。 (2) The optical performance of the optical system 20 is evaluated in a state in which all the lenses are assembled in the lens barrel 10, and the first lens holder 12 is irradiated with laser light according to the evaluation data, and the tilt of the optical axis of the first lens 11 is adjusted. So tune The entire job can be automated.
(3)將透鏡保持具安裝在鏡筒之後，藉由透鏡保持具之調整可調整光學特性，因此即使有各零件之性能偏差、或對鏡筒之安裝誤差之情形，在組裝鏡筒後進行調整，亦可降低此等偏差導致之光學性能之降低。其結果，可期待對在製程之良品率之提升之貢獻。 (3) After the lens holder is mounted on the lens barrel, the optical characteristics can be adjusted by the adjustment of the lens holder, so that even if there is a variation in the performance of each part or a mounting error to the lens barrel, it is performed after assembling the lens barrel. Adjustments can also reduce the reduction in optical performance caused by such deviations. As a result, it is expected to contribute to the improvement of the yield of the process.
(4)以往，必須以成形後之塑膠零件之形狀成為如設計之形狀之方式進行成形所使用之模具之尺寸變更。因此，為了開始新產品之製造，必須要包含模具調整之較長準備期間。然而，根據本發明，由於使塑膠成形並組裝光學系之後可修正形狀，因此可節省模具之尺寸變更所需之時間，可期待縮短製造開始為止之準備期間。 (4) Conventionally, it has been necessary to change the size of a mold used for molding in such a manner that the shape of the molded plastic part becomes a shape as designed. Therefore, in order to start the manufacture of a new product, it is necessary to include a longer preparation period for the mold adjustment. However, according to the present invention, since the shape can be corrected after the plastic is molded and the optical system is assembled, the time required for the size change of the mold can be saved, and the preparation period until the start of manufacture can be expected to be shortened.
接著，說明第2實施形態之變形例即第3實施形態。 Next, a third embodiment which is a modification of the second embodiment will be described.
在上述第2實施形態中，第1透鏡11在構成光學系20之所有透鏡之中功率最強，是以第1透鏡11之傾斜量對光學系20之光學性能影響最大，因此修正第1透鏡11之傾斜。 In the second embodiment described above, the first lens 11 has the strongest power among all the lenses constituting the optical system 20, and the inclination of the first lens 11 has the greatest influence on the optical performance of the optical system 20, so that the first lens 11 is corrected. Tilt.
如果，第2透鏡21功率最強之情形，必須調整此第2透鏡之傾斜。在此情形，使雷射標示器6移動至與第2透鏡保持具22對向之二點鏈線之位置6A。在此狀態下，拍攝測試圖7之像並進行攝影資料之評估，根據此評估結果，雷射標示器6將雷射光L1A照射至第2透鏡保持具22之既定照射部位。因此，如圖1所示，能使雷射標示器6在與 光學系20之光軸垂直之面內往上下左右方向移動。 If the power of the second lens 21 is the strongest, the inclination of the second lens must be adjusted. In this case, the laser marker 6 is moved to the position 6A of the two-point chain line opposite to the second lens holder 22. In this state, the image of the test chart 7 is photographed and the photographic data is evaluated. Based on the evaluation result, the laser marker 6 irradiates the laser light L1A to the predetermined irradiation portion of the second lens holder 22. Therefore, as shown in FIG. 1, the laser marker 6 can be made The optical axis of the optical system 20 moves in the vertical direction in the vertical direction.
又，在透鏡鏡筒10，如圖1所示，第1透鏡保持具12與第2透鏡保持具22，對透鏡鏡筒10之內周面之安裝位置角度上大幅不同。在圖示例，設為180度偏移之狀態。藉此，雷射標示器6將雷射光照射至第2透鏡保持具22時，無被第1透鏡保持具12遮蔽雷射光之虞。 Further, in the lens barrel 10, as shown in FIG. 1, the first lens holder 12 and the second lens holder 22 have greatly different angles of attachment to the inner circumferential surface of the lens barrel 10. In the example of the figure, it is set to a state of 180 degrees offset. Thereby, when the laser marker 6 irradiates the laser beam to the second lens holder 22, the laser beam is not blocked by the first lens holder 12.
如上述，較被雷射光照射之透鏡保持具位於攝影裝置3側之透鏡保持具，較佳為，從雷射標示器6觀察與雷射光照射對象之透鏡保持具不重疊。亦即，雷射光照射對象之透鏡保持具與位於較其之前(攝影裝置側)之透鏡保持具，較佳為，對透鏡鏡筒10之安裝位置角度上彼此不同。 As described above, the lens holder that is irradiated with the laser light is located on the side of the photographing device 3, and it is preferable that the lens holder that is irradiated with the laser light is not overlapped from the laser marker 6. That is, the lens holder of the laser light irradiation target and the lens holder located earlier (on the side of the photographing device), preferably, the mounting positions of the lens barrel 10 are different from each other in angle.
在上述之例，藉由使雷射標示器6移動對第2透鏡保持具22進行雷射光照射，但不使雷射標示器22之位置移動，將反射鏡等偏向構件插脫而能對第2透鏡保持具22照射雷射亦可。例如，在L1所示之虛線上與L1A所示之虛線上分別***反射鏡，使雷射光L1移動至雷射光L1A之構成亦可。 In the above-described example, the laser pointer is irradiated to the second lens holder 22 by laser light, but the position of the laser marker 22 is not moved, and the deflecting member such as a mirror is inserted and removed. 2 The lens holder 22 may also irradiate a laser. For example, a mirror may be inserted on a broken line indicated by L1 and a broken line indicated by L1A, and the laser light L1 may be moved to the laser light L1A.
上述第2及第3實施形態中，對透鏡保持具12照射雷射光以進行透鏡11之光軸之傾斜調整。本實施形態，在將光學系20組裝於透鏡鏡筒10之狀態下進行透鏡之光軸之傾斜與光軸之偏移之二個調整。此外，透鏡之偏移為該透鏡之光軸在與光學系20之光軸垂直之面內之偏移。 In the second and third embodiments described above, the lens holder 12 is irradiated with laser light to adjust the tilt of the optical axis of the lens 11. In the present embodiment, two adjustments of the tilt of the optical axis of the lens and the shift of the optical axis are performed in a state where the optical system 20 is assembled to the lens barrel 10. Moreover, the offset of the lens is the offset of the optical axis of the lens in a plane perpendicular to the optical axis of the optical system 20.
本實施形態之調整裝置，亦與圖1所示之調整裝置1 大致相同，與調整裝置1之不同點為透鏡保持具之形狀。調整對象之透鏡，與第1實施形態相同，為圖1之第1透鏡11。 The adjusting device of the present embodiment is also similar to the adjusting device 1 shown in FIG. The difference is substantially the same as that of the adjustment device 1 in the shape of the lens holder. The lens to be adjusted is the first lens 11 of Fig. 1 as in the first embodiment.
第1實施形態中，第1透鏡11雖保持在第1透鏡保持具12，但第2實施形態中，第1透鏡11，如圖7所示，保持在透鏡保持具1200，透鏡保持具1200安裝在透鏡鏡筒10之內周部。 In the first embodiment, the first lens 11 is held by the first lens holder 12. However, in the second embodiment, the first lens 11 is held by the lens holder 1200 as shown in Fig. 7, and the lens holder 1200 is mounted. In the inner circumference of the lens barrel 10.
圖7中，透鏡保持具1200具有保持第1透鏡11之外周部之框部1200a、連結於框部1200a之第1臂部1200b、連結於第1臂部1200b之第2臂部1200c。 In FIG. 7, the lens holder 1200 has a frame portion 1200a that holds the outer peripheral portion of the first lens 11, a first arm portion 1200b that is coupled to the frame portion 1200a, and a second arm portion 1200c that is coupled to the first arm portion 1200b.
第1臂部1200b具有平板折曲後形狀之段差部1222，且具有在第1臂部前端分岐之雙叉部1223a,1223b。又，第1臂部1200b具有對與框部1200a之邊界附近照射雷射光L1之照射區域1221。在雙叉部1223a,1223b之各個穿設有貫通孔1224，在此等貫通孔1224插通有虛線所示之軸部1225。軸部1225與第1透鏡11之光軸A1平行地延伸，其兩端固定在透鏡鏡筒10之內周部。藉此，第1臂部1200b支承成能以軸部1225為中心旋轉。此外，貫通孔1224位於通過第1透鏡11之中心且往第1臂部1200b之延伸方向延伸之直線P1上。 The first arm portion 1200b has a stepped portion 1222 having a shape in which the flat plate is bent, and has two fork portions 1223a and 1223b which are branched at the front end of the first arm portion. Further, the first arm portion 1200b has an irradiation region 1221 that irradiates the vicinity of the boundary of the frame portion 1200a with the laser light L1. A through hole 1224 is formed in each of the double fork portions 1223a and 1223b, and the through hole 1224 is inserted into the shaft portion 1225 indicated by a broken line. The shaft portion 1225 extends in parallel with the optical axis A1 of the first lens 11, and both ends thereof are fixed to the inner peripheral portion of the lens barrel 10. Thereby, the first arm portion 1200b is supported to be rotatable about the shaft portion 1225. Further, the through hole 1224 is located on a straight line P1 that passes through the center of the first lens 11 and extends in the extending direction of the first arm portion 1200b.
第2臂部1200c，其一端固定在雙叉部1223b，從第1臂部1200b往與圖1之光學系20之光軸呈直角之方向突出。又，第2臂部1200c整體稍微彎曲，在另一端形成凹部1227，在凹部1227插通有虛線所示之軸部1228。軸部1228 與第1透鏡11之光軸A1平行地延伸，其兩端固定在透鏡鏡筒10之內周部。 The second arm portion 1200c has one end fixed to the double fork portion 1223b and protrudes from the first arm portion 1200b in a direction perpendicular to the optical axis of the optical system 20 of Fig. 1 . Further, the second arm portion 1200c is slightly curved as a whole, and a concave portion 1227 is formed at the other end, and a shaft portion 1228 indicated by a broken line is inserted into the concave portion 1227. Shaft portion 1228 The optical axis A1 of the first lens 11 extends in parallel, and both ends thereof are fixed to the inner peripheral portion of the lens barrel 10.
第2臂部1200c，相對於第1臂部1200b上之直線P1呈銳角θ之角度從第1臂部1200b突出。又，第2臂部1200c具有固定在雙叉部1223b之一端附近之照射區域1226。照射區域1226設定在與第1透鏡11之光軸A1平行之面。 The second arm portion 1200c protrudes from the first arm portion 1200b at an angle of an acute angle θ with respect to the straight line P1 on the first arm portion 1200b. Further, the second arm portion 1200c has an irradiation region 1226 fixed near one end of the double fork portion 1223b. The irradiation area 1226 is set to be parallel to the optical axis A1 of the first lens 11.
圖1中，在包含透鏡保持具1200之所有透鏡保持具安裝在透鏡鏡筒10之狀態下，透鏡鏡筒10之光學系20使測試圖7之像成像在攝影裝置3之攝影面。攝影裝置3拍攝此像並產生影像資料。評估裝置4根據此影像資料與基準影像資料之比較，算出與光學系20之傾斜量及偏移量相關之評估資料。照射控制裝置5根據此評估資料分別算出用以修正第1透鏡11之傾斜量之傾斜用之雷射光照射條件與用以修正第1透鏡11之偏移量之偏移用之雷射光照射條件。 In Fig. 1, in a state in which all the lens holders including the lens holder 1200 are mounted on the lens barrel 10, the optical system 20 of the lens barrel 10 images the image of the test chart 7 on the photographing surface of the photographing device 3. The photographing device 3 takes this image and generates image data. The evaluation device 4 calculates evaluation data relating to the amount of tilt and the amount of shift of the optical system 20 based on the comparison between the image data and the reference image data. The irradiation control device 5 calculates the laser light irradiation conditions for correcting the tilt amount of the first lens 11 and the laser light irradiation conditions for correcting the shift amount of the offset amount of the first lens 11 based on the evaluation data.
雷射標示器6根據傾斜用之雷射光照射條件，將雷射光L1照射至第1臂部1200b上之照射區域1221。藉此，在照射區域1221形成複數條刻線1231，第1臂部1200b在照射區域1221變形，如符號T所示，框部1200a傾斜以進行第1透鏡11之光軸A1之傾斜之調整。 The laser marker 6 irradiates the laser beam L1 to the irradiation region 1221 on the first arm portion 1200b in accordance with the laser light irradiation conditions for tilting. Thereby, a plurality of scribe lines 1231 are formed in the irradiation region 1221, and the first arm portion 1200b is deformed in the irradiation region 1221. As indicated by a symbol T, the frame portion 1200a is inclined to adjust the inclination of the optical axis A1 of the first lens 11.
接續上述傾斜調整，雷射標示器6根據偏移用之雷射光照射條件，將雷射光L1照射至第2臂部1200c之照射區 域1226。藉由此雷射光照射，在照射區域1226形成複數條刻線1232。此等刻線1232之形成方向與第1透鏡11之光軸A1之方向大致平行。 Following the above tilt adjustment, the laser marker 6 irradiates the laser light to the irradiation area of the second arm portion 1200c according to the laser light irradiation condition for the offset. Field 1226. By this laser light irradiation, a plurality of scribe lines 1232 are formed in the irradiation region 1226. The direction in which the scribe lines 1232 are formed is substantially parallel to the direction of the optical axis A1 of the first lens 11.
此外，第2臂部1200c之照射區域1226為與第1透鏡11之光軸平行之面，因此與雷射標示器6之雷射光L1亦大致平行。是以，雷射標示器6不易將雷射光L1直接照射至照射區域1226。因此，本實施形態之調整裝置，將改變從雷射標示器6輸出之雷射光L1之方向之一個以上之反射鏡配置在透鏡鏡筒10內。藉此，透鏡鏡筒10內之反射鏡反射雷射光L1並照射第2臂部1200c之照射區域1226。替代此反射鏡，使用光纖將雷射光L1導至第2臂部1200c之照射區域1226亦可。 Further, since the irradiation region 1226 of the second arm portion 1200c is parallel to the optical axis of the first lens 11, the laser light L1 of the laser marker 6 is also substantially parallel. Therefore, the laser marker 6 is not easy to directly irradiate the laser light L1 to the irradiation region 1226. Therefore, in the adjusting device of the present embodiment, one or more mirrors that change the direction of the laser light L1 output from the laser marker 6 are disposed in the lens barrel 10. Thereby, the mirror in the lens barrel 10 reflects the laser light L1 and illuminates the irradiation region 1226 of the second arm portion 1200c. Instead of this mirror, it is also possible to guide the laser light L1 to the irradiation region 1226 of the second arm portion 1200c using an optical fiber.
藉由對照射區域1226之雷射光照射，第2臂部1200c在該照射區域1226變形，角度θ變化。藉此，第1臂部1200b繞軸部1225往既定方向微量旋轉。其結果，第1透鏡11之光軸A1往符號S所示之方向移動(偏移)，進行第1透鏡11之光軸A1之偏移之調整。此外，使第1臂部1200b往與上述相反方向旋轉以進行偏移調整之情形，雷射標示器6對第2臂部1200c之照射區域1226之背面照射雷射光。 By irradiating the laser beam to the irradiation region 1226, the second arm portion 1200c is deformed in the irradiation region 1226, and the angle θ changes. Thereby, the first arm portion 1200b is slightly rotated about the shaft portion 1225 in a predetermined direction. As a result, the optical axis A1 of the first lens 11 is moved (shifted) in the direction indicated by the symbol S, and the offset of the optical axis A1 of the first lens 11 is adjusted. Further, when the first arm portion 1200b is rotated in the opposite direction to perform the offset adjustment, the laser marker 6 irradiates the back surface of the irradiation region 1226 of the second arm portion 1200c with the laser beam.
本實施形態中，傾斜調整及偏移調整結束後，再次拍攝測試圖7之像，產生攝影影像資料，根據此攝影資料算出評估資料。根據此評估資料判定上述傾斜調整及偏移調整是否不充分，如果不充分之情形，再次根據上述評估資料進行雷射光照射，進行傾斜之微調整及/或偏移之微調整。 In the present embodiment, after the tilt adjustment and the offset adjustment are completed, the image of the test chart 7 is captured again, and the captured image data is generated, and the evaluation data is calculated based on the photographed data. Based on the evaluation data, it is determined whether the tilt adjustment and the offset adjustment are insufficient. If the situation is not sufficient, the laser beam irradiation is performed again based on the evaluation data, and the tilt adjustment and/or the fine adjustment of the offset are performed.
根據本實施形態之調整裝置1及光學系之調整方法，除了第1實施形態所述之作用效果外，亦可調整第1透鏡11之偏移，因此可提供更高精度之光學系。 According to the adjustment device 1 and the optical system adjustment method of the present embodiment, in addition to the effects described in the first embodiment, the offset of the first lens 11 can be adjusted, so that an optical system with higher precision can be provided.
第2實施形態中，先進行第1透鏡11之傾斜調整，之後進行偏移調整，但使調整之順序相反亦可。又，省略透鏡21之傾斜調整，僅進行偏移調整亦可。 In the second embodiment, the tilt adjustment of the first lens 11 is performed first, and then the offset adjustment is performed. However, the order of adjustment may be reversed. Further, the tilt adjustment of the lens 21 is omitted, and only the offset adjustment may be performed.
上述實施形態中，雖說明藉由雷射光照射使射出成形之透鏡保持具形狀變形之情形，但本發明只要為成形之塑膠構件，則能適用於任意構件。尤其是，本發明較佳為適用於以包含加熱步驟之成形方法、亦即上述射出成形或加壓成形製造之塑膠構件。作為塑膠構件之材料，能使用配合有耐隆或玻璃纖維之樹脂。 In the above embodiment, the case where the shape of the lens holder for injection molding is deformed by laser irradiation is described. However, the present invention can be applied to any member as long as it is a molded plastic member. In particular, the present invention is preferably applied to a plastic member manufactured by a molding method including a heating step, that is, the above-described injection molding or pressure molding. As the material of the plastic member, a resin compounded with an anti-loning or glass fiber can be used.
又，雖說明藉由對透鏡保持具之雷射光照射形成刻線以使透鏡保持具之形狀變形之情形，但本發明並非藉由雷射光照射形成刻線，僅以照射之熱使透鏡保持具之形狀變形亦可。 Moreover, although the case where the shape of the lens holder is deformed by irradiating the laser light to the lens holder is described, the present invention does not form the reticle by the irradiation of the laser light, and the lens holder is only irradiated with heat. The shape can also be deformed.
上述實施形態中，縮說明在複數個透鏡之中預先決定修正透鏡保持具之形狀之透鏡之例，但根據測定之光學特性之結果選擇修正透鏡保持具之形狀之透鏡亦可。此情形，預先調查光學特性與應修正透鏡之對應關係。 In the above-described embodiment, an example in which a lens for correcting the shape of the lens holder is determined in advance among a plurality of lenses is described. However, a lens for correcting the shape of the lens holder may be selected based on the measurement of the optical characteristics. In this case, the correspondence between the optical characteristics and the lens to be corrected is investigated in advance.
又，雖說明照射雷射之既定部位定為一處之例，但在一個零件中預先設定複數個照射部位，根據測定之光學特性選擇照射之部位亦可。圖1之調整裝置雖具備一個雷射標示器，但具備複數個雷射標示器亦可。例如，將傾斜修 正用與偏移修正用區分成第1透鏡保持具用與第2透鏡保持具用亦可。 Further, although an example in which a predetermined portion of the laser beam is irradiated is described, a plurality of irradiation portions may be set in advance in one component, and the portion to be irradiated may be selected according to the optical characteristics of the measurement. Although the adjustment device of Fig. 1 has a laser marker, it can also have a plurality of laser markers. For example, tilting It is also possible to use the offset correction for the first lens holder and the second lens holder.
上述實施形態中，藉由光學系拍攝既定圖案以進行光學特性之評估，但作為光學特性之評估之另一例，藉由光學系透影既定圖案來評估投影後圖案之像亦可。再者，替代在圖案之評估，藉由干涉評估光學特性，根據此評估結果決定照射雷射之部位並照射雷射，修正透鏡保持具之形狀亦可。 In the above embodiment, the predetermined pattern is photographed by the optical system to evaluate the optical characteristics. However, as another example of the evaluation of the optical characteristics, the image of the projected pattern may be evaluated by the optical system through pattern. Furthermore, instead of evaluating the optical characteristics by interference in the evaluation of the pattern, it is also possible to determine the shape of the lens holder by illuminating the portion irradiated with the laser and irradiating the laser based on the evaluation result.
上述實施形態中，雖說明修正透鏡保持具之形狀之例，但不限於透鏡(透射構件)，修正保持反射鏡等反射構件之保持具之形狀亦可。 In the above-described embodiment, an example in which the shape of the lens holder is corrected is described. However, the shape of the holder of the reflection member such as the mirror is not limited to the lens (transmission member).
上述實施形態中，雖藉由對保持光學零件之由塑膠成形構件構成之保持具照射雷射光來修正形狀，但不限於光學零件之保持具，亦可適用於保持其他零件之塑膠構件之修正。例如，亦可使用於CCD或CMOS等攝影元件之安裝位置之調整。使用圖9說明此種實施形態。 In the above embodiment, the shape is corrected by irradiating the holder having the plastic molding member with the laser beam to correct the shape. However, the holder is not limited to the holder for the optical member, and may be applied to the correction of the plastic member for holding the other member. For example, it can also be used for adjustment of the mounting position of a photographic element such as a CCD or a CMOS. Such an embodiment will be described using FIG.
圖9係以示意方式顯示攝影元件安裝位置之調整之圖。用於調整攝影元件之安裝位置之調整裝置91與圖1所示之光學系之調整裝置類似。攝影元件安裝位置之調整如下述方式進行。 Fig. 9 is a view showing the adjustment of the mounting position of the photographic element in a schematic manner. The adjusting device 91 for adjusting the mounting position of the photographic element is similar to the adjusting device of the optical system shown in FIG. The adjustment of the mounting position of the photographing element is performed as follows.
首先，將安裝有組裝有光學系20之透鏡鏡筒10之攝影機本體100固定在調整裝置91之支承台2。預先把握透鏡鏡筒10之光學性能。在攝影機本體100安裝有攝影元件 93。攝影元件93之周圍係藉由嵌入或接著等保持在塑膠製之保持構件94，攝影元件93係透過上述塑膠製保持構件94安裝在攝影機本體。此外，在攝影元件93之前面及背面分別設有濾光鏡及攝影元件93之驅動電路基板亦可。 First, the camera body 100 to which the lens barrel 10 incorporating the optical system 20 is mounted is fixed to the support table 2 of the adjustment device 91. The optical performance of the lens barrel 10 is grasped in advance. The camera body 100 is mounted with a photographic element 93. The periphery of the photographic element 93 is held by a plastic holding member 94 by embedding or the like, and the photographic element 93 is attached to the camera body through the plastic holding member 94. Further, a filter substrate and a drive circuit substrate of the image pickup element 93 may be provided on the front surface and the back surface of the image pickup element 93, respectively.
接著，通過光學系20藉由組裝在攝影機本體之攝影元件93拍攝測試圖7以產生攝影影像資料。根據此攝影影像資料，藉由評估裝置4求出與攝影元件93之基準位置之偏移量以進行評估。在照射控制裝置5預先儲存有雷射光照射條件表，該雷射光照射條件表使與攝影元件93之基準位置之偏移量和從雷射標示器6照射之雷射光之照射條件產生關聯。雷射標示器6，根據照射控制裝置5根據雷射光照射條件表決定之雷射光照射條件，對攝影元件93之塑膠製保持構件94之既定位置照射雷射光。此外，在雷射標示器6進行照射之前，往既定位置移動亦可。 Next, the test image 7 is taken by the optical unit 20 by the photographic element 93 assembled in the camera body to generate photographic image data. Based on the photographic image data, the evaluation device 4 determines the offset from the reference position of the photographic element 93 for evaluation. The irradiation control device 5 stores in advance a laser light irradiation condition table that correlates the amount of shift from the reference position of the imaging element 93 with the irradiation condition of the laser light irradiated from the laser marker 6. The laser marker 6 irradiates the predetermined position of the plastic holding member 94 of the imaging element 93 with the laser light according to the laser light irradiation condition determined by the irradiation light irradiation condition table. Further, before the laser marker 6 is irradiated, it is also possible to move to a predetermined position.
上述說明中，來自雷射標示器6之雷射光直接照射至塑膠製保持構件94，但透過反射鏡或透鏡照射至塑膠製保持構件94亦可。 In the above description, the laser light from the laser marker 6 is directly irradiated to the plastic holding member 94, but may be irradiated to the plastic holding member 94 through a mirror or a lens.
如上述說明，根據本實施形態之攝影元件之調整方法，在將攝影元件93安裝在攝影機本體100之狀態下，評估攝影元件93進行之測試圖7之攝影狀態，根據其結果進行攝影元件93之位置調整。藉由上述構成，可高精度調整攝影元件93之法線與光學系20之光軸。 As described above, according to the method of adjusting the imaging element of the present embodiment, in the state in which the imaging element 93 is mounted on the camera body 100, the imaging state of the test image of FIG. 7 is evaluated by the imaging element 93, and the imaging element 93 is performed based on the result. Position adjustment. According to the above configuration, the normal line of the imaging element 93 and the optical axis of the optical system 20 can be adjusted with high precision.
此外，替代在將攝影元件93安裝在攝影機本體100之狀態下進行調整，在將攝影元件93安裝在攝影機本體100 前，使用治工具等進行調整亦可。此情形，必須使用安裝有攝影元件93之塑膠製保持構件94與光學系20之位置關係成為與透過攝影機本體100之狀態相同之治工具。又，在此情形，來自雷射標示器6之雷射光從測試圖7與透鏡鏡筒10之間照射亦可。例如，在配置於光學系20之位置之治工具設置反射鏡亦可。 Further, instead of being adjusted in a state where the photographic element 93 is mounted on the camera body 100, the photographic element 93 is mounted on the camera body 100. Before using, it is also possible to adjust using a treatment tool. In this case, the positional relationship between the plastic holding member 94 to which the photographic element 93 is attached and the optical system 20 must be the same as that of the camera body 100. Further, in this case, the laser light from the laser marker 6 may be irradiated from between the test chart 7 and the lens barrel 10. For example, a mirror may be provided in the treatment tool disposed at the position of the optical system 20.
與本實施形態相同，拍攝既定圖案並評估其攝影資料，藉此對安裝有CCD之塑膠構件之既定位置照射雷射光，修正CCD之安裝位置。此情形，透過具有某程度精度之光學系作成影像資料。 In the same manner as in the present embodiment, a predetermined pattern is taken and the photographic data is evaluated, whereby the predetermined position of the plastic member to which the CCD is mounted is irradiated with the laser light, and the mounting position of the CCD is corrected. In this case, image data is created by an optical system having a certain degree of precision.
本發明只要其特徵不改變，並不限於以上說明之實施形態。 The present invention is not limited to the embodiments described above as long as the features are not changed.
下述優先權基礎申請案之揭示內容係作為引用文而記載於本說明書。 The disclosure of the priority priority application described below is incorporated herein by reference.
日本申請2011年第089451號(2011年4月13日申請) Japan applied for No. 089451 of 2011 (applied on April 13, 2011)
1‧‧‧調整裝置 1‧‧‧Adjustment device
2‧‧‧支承台 2‧‧‧Support table
3‧‧‧攝影裝置 3‧‧‧Photographing device
4‧‧‧評估裝置 4‧‧‧Evaluation device
5‧‧‧照射控制裝置 5‧‧‧Emission control device
6‧‧‧雷射標示器 6‧‧‧Laser marker
6A‧‧‧位置 6A‧‧‧Location
7‧‧‧測試圖 7‧‧‧Test chart
7a~7d,70a~70d‧‧‧濃淡圖案 7a~7d, 70a~70d‧‧‧
10‧‧‧透鏡鏡筒 10‧‧‧Lens tube
11‧‧‧第1透鏡 11‧‧‧1st lens
12‧‧‧第1透鏡保持具 12‧‧‧1st lens holder
12a‧‧‧框部 12a‧‧‧ Frame Department
12A‧‧‧上面 12A‧‧‧above
12b‧‧‧臂部 12b‧‧‧arm
12B‧‧‧下面 12B‧‧‧ below
20‧‧‧光學系 20‧‧‧Optics
21‧‧‧第2透鏡 21‧‧‧2nd lens
22‧‧‧第2透鏡保持具 22‧‧‧2nd lens holder
31‧‧‧第3透鏡 31‧‧‧3rd lens
32‧‧‧第3透鏡保持具 32‧‧‧3rd lens holder
70‧‧‧像 70‧‧‧like
91‧‧‧調整裝置 91‧‧‧Adjustment device
93‧‧‧攝影元件 93‧‧‧Photographic components
94‧‧‧保持構件 94‧‧‧Retaining components
100‧‧‧數位攝影機 100‧‧‧ digital cameras
101‧‧‧條紋 101‧‧‧ stripes
111‧‧‧攝影元件 111‧‧‧Photographic components
112‧‧‧電子觀景窗 112‧‧‧Electronic viewing window
120‧‧‧刻線 120‧‧‧ engraved line
121‧‧‧照射部位 121‧‧‧Irradiated parts
130‧‧‧直線 130‧‧‧ Straight line
140‧‧‧前端部 140‧‧‧ front end
1200‧‧‧透鏡保持具 1200‧‧‧ lens holder
1200a‧‧‧框部 1200a‧‧‧ Frame Department
1200b‧‧‧第1臂部 1200b‧‧‧1st arm
1200c‧‧‧第2臂部 1200c‧‧‧2nd arm
1221‧‧‧照射區域 1221‧‧‧ illuminated area
1222‧‧‧段差部 1222‧‧‧Departure
1223a,1223b‧‧‧雙叉部 1223a, 1223b‧‧‧Double fork
1224‧‧‧貫通孔 1224‧‧‧through hole
1225,1228‧‧‧軸部 1225,1228‧‧‧Axis
1226‧‧‧照射區域 1226‧‧‧ illuminated area
1227‧‧‧凹部 1227‧‧‧ recess
1231,1232‧‧‧刻線 1231,1232‧‧
A0,A1‧‧‧光軸 A0, A1‧‧‧ optical axis
L1,L1A‧‧‧雷射光 L1, L1A‧‧ ‧ laser light
P1‧‧‧直線 P1‧‧‧ Straight line
圖1係以示意方式顯示本發明實施形態之光學系之調整裝置之構成圖。 Fig. 1 is a view schematically showing the configuration of an optical system adjusting device according to an embodiment of the present invention.
圖2(a)係以示意方式顯示用在光學系之調整之測試圖之圖，圖2(b)係以示意方式顯示光學系所形成之測試圖之像之圖。 Fig. 2(a) is a view schematically showing a test chart for adjustment of an optical system, and Fig. 2(b) is a view schematically showing an image of a test chart formed by an optical system.
圖3係以示意方式顯示第1實施形態中雷射光照射之透鏡保持具之側視圖，圖3(a)係雷射光照射前之透鏡保持 具，圖3(b)係雷射光照射後之透鏡保持具。 Fig. 3 is a side view showing a lens holder for laser light irradiation in the first embodiment, and Fig. 3(a) is a lens holding before laser light irradiation. Fig. 3(b) is a lens holder after laser light irradiation.
圖4係顯示對透鏡保持具之雷射光照射進行之刻線形成之一例之示意圖，圖4(a)係俯視圖，圖4(b)係A-A箭頭剖面圖。 Fig. 4 is a view showing an example of a line formation of laser light irradiation of a lens holder, Fig. 4(a) is a plan view, and Fig. 4(b) is a cross-sectional view taken along line A-A.
圖5係以示意方式顯示對透鏡保持具之雷射光照射前後之內部應力分布之部分剖面圖，圖5(a)係顯示雷射光照射前之內部應力分布之圖，圖5(b)係顯示雷射光照射後之內部應力分布之圖。 Fig. 5 is a partial cross-sectional view showing the internal stress distribution before and after the laser light irradiation of the lens holder in a schematic manner, and Fig. 5(a) is a view showing the internal stress distribution before the laser light irradiation, and Fig. 5(b) is a view A diagram of the internal stress distribution after exposure to laser light.
圖6係以示意方式顯示供收納圖1所示之鏡筒之數位攝影機之內部之圖。 Fig. 6 is a view schematically showing the inside of a digital camera for housing the lens barrel shown in Fig. 1.
圖7係以示意方式顯示第2實施形態中雷射光照射之透鏡保持具之立體圖。 Fig. 7 is a perspective view showing the lens holder for laser light irradiation in the second embodiment in a schematic manner.
圖8係顯示本發明實施形態之光學系之調整方法之流程圖。 Fig. 8 is a flow chart showing a method of adjusting an optical system according to an embodiment of the present invention.
圖9係以示意方式顯示本發明實施形態之攝影元件之調整之圖。 Fig. 9 is a view schematically showing the adjustment of the photographic element of the embodiment of the present invention.
1‧‧‧調整裝置 1‧‧‧Adjustment device
2‧‧‧支承台 2‧‧‧Support table
3‧‧‧攝影裝置 3‧‧‧Photographing device
4‧‧‧評估裝置 4‧‧‧Evaluation device
5‧‧‧照射控制裝置 5‧‧‧Emission control device
6‧‧‧雷射標示器 6‧‧‧Laser marker
6A‧‧‧位置 6A‧‧‧Location
7‧‧‧測試圖 7‧‧‧Test chart
10‧‧‧透鏡鏡筒 10‧‧‧Lens tube
11‧‧‧第1透鏡 11‧‧‧1st lens
12‧‧‧第1透鏡保持具 12‧‧‧1st lens holder
20‧‧‧光學系 20‧‧‧Optics
21‧‧‧第2透鏡 21‧‧‧2nd lens
22‧‧‧第2透鏡保持具 22‧‧‧2nd lens holder
31‧‧‧第3透鏡 31‧‧‧3rd lens
32‧‧‧第3透鏡保持具 32‧‧‧3rd lens holder
121‧‧‧照射部位 121‧‧‧Irradiated parts
1200‧‧‧透鏡保持具 1200‧‧‧ lens holder
A0‧‧‧光軸 A0‧‧‧ optical axis
L1,L1A‧‧‧雷射光 L1, L1A‧‧ ‧ laser light
Claims (16)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011089451 | 2011-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201305641A true TW201305641A (en) | 2013-02-01 |
| TWI541555B TWI541555B (en) | 2016-07-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101112950A TWI541555B (en) | 2011-04-13 | 2012-04-12 | The adjustment method of the optical system, the adjusting means of the optical system, and the adjusting method of the photographic element |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6160483B2 (en) |
| CN (1) | CN103477263B (en) |
| TW (1) | TWI541555B (en) |
| WO (1) | WO2012141295A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013215091A1 (en) | 2013-08-01 | 2014-08-07 | Carl Zeiss Smt Gmbh | Optical module i.e. facet mirror, for optical imaging device in microlithography region for manufacturing microelectronic circuit, has supporting structure with supporting elements, where one of elements is arranged in deformed condition |
| US20170371113A1 (en) * | 2015-01-21 | 2017-12-28 | Mitsubishi Electric Corporation | Optical axis alignment method, optical axis alignment apparatus and method for manufacturing optical device |
| CN111256666B (en) * | 2020-02-17 | 2022-04-22 | 广州市城市规划勘测设计研究院 | Lofting tool with scales |
| CN115079429B (en) * | 2022-05-19 | 2023-05-26 | 中国科学院西安光学精密机械研究所 | Adjustment system and adjustment method for periscope type schlieren collimation light source optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050036057A1 (en) * | 2003-07-24 | 2005-02-17 | Matsushita Electric Industrial Co., Ltd. | Image pickup device integrated with lens, method and apparatus for manufacturing the same |
| JP4140491B2 (en) * | 2003-09-10 | 2008-08-27 | ソニー株式会社 | Camera module production method and assembling apparatus using the method |
| JP2006091738A (en) * | 2004-09-27 | 2006-04-06 | Fuji Photo Film Co Ltd | Lens system, lens adjustment device, adjustment method, and camera |
| JP2007264160A (en) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Ind Co Ltd | Method for adjusting tilt of optical component, and optical unit manufacturing method |
| JP2009115980A (en) * | 2007-11-05 | 2009-05-28 | Olympus Corp | Method for manufacturing optical system unit |
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2012
- 2012-04-12 TW TW101112950A patent/TWI541555B/en active
- 2012-04-13 WO PCT/JP2012/060143 patent/WO2012141295A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| JPWO2012141295A1 (en) | 2014-07-28 |
| TWI541555B (en) | 2016-07-11 |
| WO2012141295A1 (en) | 2012-10-18 |
| CN103477263A (en) | 2013-12-25 |
| CN103477263B (en) | 2017-02-15 |
| JP6160483B2 (en) | 2017-07-12 |
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