200407658 五、發明說明（1) 【發明之背景】 發明之領城 本發明係關於一種影像感測模組，尤其關於一種縮短 光路長度之影像感測模組及使用該影像感測模組之底片掃 描器。 習知技術之描述 圖1係為顯示傳統之接觸式影像感測模組掃描反射稿 之示意圖。如圖1所示，傳統之接觸式影像感測模組1 1 0包 含一本體1 1 1，一影像感測器i i 2、一透鏡陣列1 1 6、一罩 覆玻璃層117、及一發光二極體（LED)130。 影像感測器11 2位於本體111之底部，並包含複數個單 色光之感光單元113以及一個用以將感光單元113封裝之透 光層1 1 4。透鏡陣列11 6包含複數個柱狀透鏡。吾人應注意 到，柱狀透鏡與感光單元11 3係沿著垂直於圖面之方向排 列。罩覆玻璃層11 7罩覆住透鏡陣列11 6與LED 1 30，避免 灰塵影響到影像感測模組11 〇之特性。 由LED 130發射出的光線，透過導光桿（未顯示）而穿 透罩覆玻璃層11 7後，照在反射稿1上面。反射稿1將部分 之光線反射’反射光線由透鏡陣列11 6之柱狀透鏡分別聚 焦至感光單元1 1 3上，如此可獲致對應於反射稿1之影像信 號。 目前之CIS(接觸式影像感測器）式掃描器中，CIS模組 的長度大約等於所欲掃描文件的寬度。舉例而言，A4尺寸 之c I S式掃描器所使用的c I s模組的長度大約在2 1 〇公釐左200407658 V. Description of the invention (1) [Background of the invention] The invention of the invention is an image sensing module, especially an image sensing module with a shortened optical path length and a negative using the image sensing module. scanner. Description of Conventional Technology Figure 1 is a schematic view showing a scanning reflection draft of a conventional contact image sensor module. As shown in FIG. 1, the conventional contact image sensor module 1 10 includes a body 1 1 1, an image sensor ii 2, a lens array 1 16, a cover glass layer 117, and a light emitting device. Diode (LED) 130. The image sensor 112 is located at the bottom of the main body 111, and includes a plurality of single-color light-sensing units 113 and a light-transmitting layer 1 1 4 for packaging the light-sensing unit 113. The lens array 116 includes a plurality of lenticular lenses. I should note that the lenticular lens and the photosensitive unit 113 are arranged in a direction perpendicular to the drawing surface. The cover glass layer 11 7 covers the lens array 116 and the LED 1 30 to prevent dust from affecting the characteristics of the image sensing module 11 〇. The light emitted by the LED 130 passes through the cover glass layer 11 17 through a light guide rod (not shown), and shines on the reflection draft 1. The reflection draft 1 reflects a part of the light rays. The reflected light rays are respectively focused by the lenticular lenses of the lens array 116 on the photosensitive units 1 1 3, so that an image signal corresponding to the reflection draft 1 can be obtained. In current CIS (contact image sensor) scanners, the length of the CIS module is approximately equal to the width of the document to be scanned. For example, the length of the c I s module used in the A I size c I S scanner is about 2 10 mm.
200407658 五、發明說明（2) 右。因此，對於透鏡陣列116而言，物距約等於像距， 得放大倍率為1，此乃為CIS模組的長度約等於文件寬戶之 等同意義。而且，接觸式影像感測模組所使用之感測^ 口 有感應單色光，若要用此感測器掃描出彩色效果 利用、 LED 130發出不同顏色之光線來達成。 综觀目前市場上所用的CIS感測器，透鏡陣列u 6 與影像感測器112隔開一段預定之距離，以使放大倍率维 持為1。然而，光線亮度會隨著距離之增長而衰減，使得 掃描時的曝光時間必須增長，因而無法達成快速掃描之目 的。而且，影像品質會隨著曝光時間之增長而變差。 立圖2係為傳統之CCD(電荷耦合元件）式底片掃描器之示 意圖。如圖2所示，CCD式掃描器主要包含㈣影像感測模 組1 20與光源1 24。CCD影像感測模組丨2〇包含反射鏡丨2工、 透鏡122及CCD影像感測器123。 光源124發出光線穿透底片2，穿透之光線由反射鏡 1。21反射，反射後之光線通過透鏡122聚焦至ccd影像感測 器1。23上。光源124所發出之光線通常為白光，CCD影像感 :器123上則具有紅色、綠色、藍色之感光單元如此可 獲致彩色掃描之效果。 於此習知例中，從底片2至CCD影像感測器123之光路 度更長使得光線衰減量更大。再者，光線通過反射鏡 ，亦^會有一定程度之衰減，使得全部之衰減量更大。 者，热習本項技藝者應可以理解到，由於反射鏡之配 置’使侍圖2之掃描器並無法達成小型化之需求。 200407658 五、發明說明（3) 【發明概要】 口此本發明之一個目的係為提供一種具有縮短光路 長度之影像感測模組。 本發明之另一目的係為 組，藉以降低使用該影像感 本發明之又另一目的係 影像感測模組，藉以加速使 器之掃描速度。 提供一種薄型化之影像感測模 測模組之底片掃描器之厚度。 為提供一種能縮短曝光時間之 用該影像感測模組之底片掃描 依據本發明之一個實施樣態，係關於一種影像感測模 組，其包含··一本體；一影像感測器，設於該本體中，該 影像感測器包含複數個感光單元及用以罩覆該等感光單元 之透光層，該透光層具有遠離該等感光單元之上表面；及 一透鏡陣列，位於該影像感測器上，並使該透鏡陣列與該 透光層之上表面密接貼合，用以接收複數個影像信號 該等影像信號聚焦至該等感光單元。該透鏡陣列之聚U隹μ 度等於該透光層之上表面至該等感光單元之距離。Λ “、、冰 依據本發明之另一個實施樣態，係關於一種使 影像感測模組之底片掃描器。 & 藉由上述構造，可使本發明之影像感測模組具 之光路長度’從而縮短曝光時間，加快 、、、 影像品質。 肖^速度’並穩定 【較佳實施例之說明】 器之示 圖3係為依據本發明之第一實施例之底片掃描 200407658 五、發明說明（4) 意圖。如圖3所示，依據本發明第一實施例之底片掃描器 包含一影像感測模組1〇、一底片通道2〇、一光源3〇、及一 驅動機構40。 影像感測模組1 0包含一本體1 1、一影像感測器1 2、一 透鏡陣列1 6以及一罩覆玻璃層1 7，設於該透鏡陣列1 6之上 方，用以罩覆該透鏡陣列丨6。值得注意的是，罩覆玻璃層 1 7係為可以省略之構件，如此可更縮短光路長度。200407658 V. Description of Invention (2) Right. Therefore, for the lens array 116, the object distance is approximately equal to the image distance, and the magnification is 1, which is the equivalent meaning that the length of the CIS module is approximately equal to the width of the document. In addition, the sensor ^ used in the contact image sensor module has a sense of monochromatic light. If you want to use this sensor to scan the color effect, the LED 130 emits light of different colors to achieve it. Looking at the CIS sensors currently used in the market, the lens array u 6 is separated from the image sensor 112 by a predetermined distance so that the magnification is maintained at 1. However, the brightness of the light will attenuate with the increase of the distance, so that the exposure time during scanning must be increased, and the goal of fast scanning cannot be achieved. Moreover, the image quality deteriorates as the exposure time increases. Figure 2 is a schematic view of a conventional CCD (Charge Coupled Element) film scanner. As shown in FIG. 2, the CCD scanner mainly includes a tritium image sensing module 12 and a light source 12. The CCD image sensing module 20 includes a mirror, a lens 122, and a CCD image sensor 123. The light source 124 emits light to penetrate the negative film 2. The transmitted light is reflected by the reflecting mirror 1. 21. The reflected light is focused on the ccd image sensor 1.23 through the lens 122. The light emitted by the light source 124 is usually white, and the CCD image sensor 123 has red, green, and blue photosensitive units so that the color scanning effect can be obtained. In this conventional example, the light path length from the negative 2 to the CCD image sensor 123 is longer so that the amount of light attenuation is larger. In addition, the light passing through the mirror will be attenuated to a certain extent, making the total attenuation greater. However, those skilled in the art should understand that due to the configuration of the mirror, the scanner of Fig. 2 cannot meet the demand for miniaturization. 200407658 V. Description of the invention (3) [Summary of the invention] An object of the present invention is to provide an image sensing module with a shortened optical path length. Another object of the present invention is to reduce the use of the image sensor. Another object of the present invention is to use an image sensor module to accelerate the scanning speed of the driver. A thin-film image sensing module is provided to measure the thickness of the film scanner of the module. In order to provide a film scan using the image sensing module capable of shortening the exposure time, according to an embodiment of the present invention, it relates to an image sensing module including: a body; an image sensor; In the body, the image sensor includes a plurality of photosensitive units and a light-transmitting layer for covering the light-sensitive units, the light-transmitting layer has an upper surface far from the light-sensitive units; and a lens array located at the The image sensor is closely adhered to the lens array and the upper surface of the light-transmitting layer to receive a plurality of image signals, and the image signals are focused on the photosensitive units. The degree of convergence of the lens array is equal to the distance from the upper surface of the transparent layer to the photosensitive units. Λ ", Bing, according to another embodiment of the present invention, relates to a film scanner that enables an image sensing module. &Amp; With the above structure, the optical path length of the image sensing module of the present invention can be made 'Thus shortening the exposure time, speeding up the image quality. Shaw speed' and stable [Description of the preferred embodiment] Figure 3 of the device is a negative scan according to the first embodiment of the present invention. (4) Intent. As shown in FIG. 3, the film scanner according to the first embodiment of the present invention includes an image sensing module 10, a film channel 20, a light source 30, and a driving mechanism 40. Image The sensing module 10 includes a body 11, an image sensor 12, a lens array 16, and a cover glass layer 17, which is disposed above the lens array 16 to cover the lens. Array 丨 6. It is worth noting that the cover glass layer 17 is a component that can be omitted, which can shorten the optical path length even more.
衫像感測Is 1 2係没於該本體1 1中，並包含一基板1 8、 複數個感光單元13及用以罩覆該等感光單元13之透光層 14。透光層14具有遠離該等感光單元13之上表面15。光源 3 0穿透底片2後，產生複數個影像信號傳遞至透鏡陣列 16 ° 透鏡陣列1 6包含複數個柱狀透鏡，並位於該影像感測 器12上’而使該透鏡陣列16與該透光層14之上表面15密接 貼合’用以接收複數個影像信號並將該等影像信號聚焦至 該等感光單元1 3中。吾人應注意到，柱狀透鏡與感光單元 1 3係沿著垂直於圖面之方向排列。依此構造，使得透鏡陣 列16之聚焦深度D1等於該透光層14之上表面15至該等感光 單元1 3之距離。The shirt image sensing Is 12 is not included in the body 11 and includes a substrate 18, a plurality of photosensitive units 13, and a light-transmitting layer 14 for covering the photosensitive units 13. The light transmitting layer 14 has an upper surface 15 far from the photosensitive units 13. After the light source 30 penetrates the negative film 2, a plurality of image signals are generated and transmitted to the lens array 16 °. The lens array 16 includes a plurality of lenticular lenses and is located on the image sensor 12 ', so that the lens array 16 and the transparent lens The upper surface 15 of the light layer 14 is closely adhered to receive a plurality of image signals and focus the image signals into the photosensitive units 13. I should note that the lenticular lens and the photosensitive unit 13 are arranged along a direction perpendicular to the drawing surface. According to this structure, the focal depth D1 of the lens array 16 is equal to the distance from the upper surface 15 of the light transmitting layer 14 to the photosensitive units 13.
於此實施例之影像感測器1 2可以是類似於圖2之CCD影 像感測器，具有紅色、綠色及藍色之複數個感光單元，藉 以對底片進行彩色掃描。此時，光源3〇可為冷陰極螢光燈 管或LED。吾人應注意到，亦可使用平面光源來取代光源 3 0 °The image sensor 12 in this embodiment may be similar to the CCD image sensor of FIG. 2, and has a plurality of photosensitive units of red, green, and blue to perform color scanning on the negative. In this case, the light source 30 may be a cold cathode fluorescent lamp or an LED. I should note that planar light sources can also be used instead of light sources 30 °
第8頁 200407658Page 8 200407658
由於聚焦深度D1相對於 得光路長度變短，大幅減少 此’掃描底片時之曝光時間 度’並使影像品質不會變差 習知技術而言是大幅減少，使 了光線免度之衰減程度。因 可大幅縮短，從而加快掃描速 於此實施例中，底Η 9 #丄 ^ 、 ^ ^ ^ ^ ^20 # J Λ , ,^0 ^ ^ ^ ^ 動，用以對底片2遂行掃据之動以作。“、，、組1 〇則固定不 圖4”依據本發明之第二實施例之底片掃描器之示 Λ致與第一實施例㈣，其不同點在於底 今處Η & 1固疋架60所承載，而驅動機構40係用以驅動- 該=固疋架60通過該底片通道2〇。依此構造，使得較短 之底片2可以方便地受到固定。 圖5係杏為依據本發明之第三實施例之底片掃描器之示 :2囡-此又例大致與第一實施例相㈤，其不同點在於底 片疋不動，因此不需任何驅動機構來驅動底片2移動。 於掃描時移動機構5 0驅動影像感測模組1 〇朝著箭頭a的 方向移動，用以掃描位於底片通道2〇中之底片2。 圖6係為依據本發明之第四實施例之底片掃描器之示 思圖此實施例大致與第一實施例相同，其不同點在於省 略罩覆玻璃層1 7，且大幅縮短底片2至透鏡陣列1 6之距 離。如此，可將影像感測模組1 〇之厚度減至最低，並將光 路長度減至最小，已符合本發明之縮短曝光時間之目的。 以上乃本發明之較佳實施例以及設計圖式，惟較佳實 方β例以及Λ汁圖式僅是舉例說明，並非用於限制本發明技Since the depth of focus D1 is shorter than the length of the light path, the 'exposure time when scanning the film' is greatly reduced, and the image quality is not deteriorated. It is greatly reduced in the conventional technology, so that the degree of attenuation of light immunity is reduced. Because it can be greatly shortened, the scanning speed is accelerated. In this embodiment, the bottom Η 9 # ^, ^ ^ ^ ^ ^ 20 # J Λ,, ^ 0 ^ ^ ^ ^ ^ is used to scan the negative 2 Act. ",,, group 10 is not fixed as shown in Fig. 4" The film scanner according to the second embodiment of the present invention is different from the first embodiment, and the difference lies in the bottom and the front. 60, and the drive mechanism 40 is used to drive-the = fixed frame 60 through the negative channel 20. With this configuration, the shorter negative film 2 can be easily fixed. Fig. 5 is an illustration of a negative film scanner according to a third embodiment of the present invention: 2 囡-This example is roughly similar to the first embodiment, the difference is that the negative film does not move, so no driving mechanism is required The negative 2 is driven to move. During scanning, the moving mechanism 50 drives the image sensing module 10 to move in the direction of the arrow a, and is used to scan the film 2 located in the film channel 20. FIG. 6 is a schematic diagram of a film scanner according to a fourth embodiment of the present invention. This embodiment is substantially the same as the first embodiment, except that the cover glass layer 17 is omitted, and the film 2 to the lens is greatly shortened. The distance of the array 16. In this way, the thickness of the image sensing module 10 can be minimized, and the optical path length can be minimized, which has met the purpose of shortening the exposure time of the present invention. The above are the preferred embodiments and design schemes of the present invention, but the preferred practical β examples and Λ juice schemes are only examples, and are not intended to limit the technology of the present invention.
200407658 五、發明說明（6) 藝之權利範圍，凡以均等之技藝手段、或為下述「申請專 利範圍」内容所涵蓋之權利範圍而實施者，均不脫離本發 明之範疇而為申請人之權利範圍。 第10頁 200407658 圖式簡單說明 圖1係為顯示傳統之接觸式影像感測模組掃描反射稿 之示意圖。 圖2係為傳統之CCD (電荷耦合元件）式底片掃描器之示 意圖。 圖3係為依據本發明之第一實施例之底片掃描器之示 意圖。 圖4係為依據本發明之第二實施例之底片掃描器之示 意圖。 圖5係為依據本發明之第二實施例之底片掃描器之示 意圖。 圖6係為依據本發明之第四實施例之底片掃描器之示 意圖。 【符號之說明】 1〜反射稿 1 〇〜影像感測模組 1 2〜影像感測器 1 4〜透光層 1 6〜透鏡陣列 I 8〜基板 3 0〜光源 5 0〜移動機構 II 〇〜影像感測模組 11 2〜影像感測器 11 4〜透光層 2〜底片 11〜本體 1 3〜感光單元 15〜上表面 17〜罩覆玻璃層 20〜底片通道 4 0〜驅動機構 60〜底片固定架 111〜本體 113〜感光單元 11 6〜透鏡陣列 200407658200407658 V. Description of the invention (6) The scope of the right of the art. Anyone who implements with equal technical means or the scope of the rights covered by the following "application scope of patents" shall not depart from the scope of the present invention but be the applicant. Scope of rights. Page 10 200407658 Brief Description of Drawings Figure 1 is a schematic view showing a scanning reflection draft of a conventional contact image sensing module. Figure 2 is a schematic view of a conventional CCD (Charge Coupled Element) film scanner. Fig. 3 is a schematic view of a film scanner according to a first embodiment of the present invention. Fig. 4 is a schematic view of a film scanner according to a second embodiment of the present invention. Fig. 5 is a schematic view of a film scanner according to a second embodiment of the present invention. Fig. 6 is a schematic view of a film scanner according to a fourth embodiment of the present invention. [Description of symbols] 1 ~ Reflection draft 1〇 ~ Image sensing module 1 2 ~ Image sensor 1 4 ~ Transparent layer 16 6 ~ Lens array I 8 ~ Substrate 3 0 ~ Light source 5 0 ~ Motion mechanism II 〇 ~ Image sensor module 11 2 ~ Image sensor 11 4 ~ Transparent layer 2 ~ Negative film 11 ~ Body 1 3 ~ Photosensitive unit 15 ~ Upper surface 17 ~ Cover glass layer 20 ~ Negative film channel 4 0 ~ Drive mechanism 60 ~ Film holder 111 ~ Main body 113 ~ Photosensitive unit 11 6 ~ Lens array 200 407 658
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