1362562 月06日梭正餘頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種光圈及其製作方法，尤其係關於一種 可過濾紅外線或紫外線之光圈及其製作方法。 【先前技術】 [0002] 隨著多媒體技術之發展，數位相機、攝影機越來越為廣 大消費者青睞，在人們對數位相機、攝影機追求小型化 之同時，對其拍攝物體之影像質量提出更高要求。 [0003] 數位相機一般包括透鏡或透鏡組及影像感測元件CCD(電 荷耗合器 Charge Coupled Device，下稱 CCD)或 CMOS( 補充性氧化金屬半導體Complementary Metal-Oxide Semiconductor，下稱CMOS)，由於CCD或CMOS影像感 測元件之波長感應光譜範圍約為350〜150Onm，而可見 光之波長範圍為400〜700nm，波長範圍大於700nra〜 lOOOOOOmn為紅外線波長範圍，即CCD或CMOS影像感測 元件不僅可感測到可見光，而且亦可感測到部分紅外線 ’因而使拍攝之影像受紅外線之幹擾產生雜訊，導致色 彩失真。 [0004] 為解決上述色彩失真之問題，一般數位相機通常藉由一 紅外截止濾光片來濾除照射至CCD或CMOS影像感剎元件之 紅外光，該紅外截止濾光片通常係於一透明基板鍍覆相 應膜層形成，用以阻止红外線通過’避免於正常拍攝時 紅外線入射至影像感測元件幹擾產生噪點，以利於色彩 還原。 ’ [0005] 另，數位相機中需藉由一光圈之開孔大小來控制進光量 09414361^早編號 Α0101 第 3 頁 / 共 15 頁 1013006690-0 1362562 101年月05日修正替換百 ，其與紅外截止濾光片同為數位相機之必備元件。然， 習知技術中，由於紅外截止濾光片及光圈均具一定厚度 ，上述元件堆疊使得產品之厚度增大，難以滿足數位相 機模組之小型化之需求。 【發明内容】 [0006] 有鑒於此，有必要提供一種可過濾光線之光圈； [0007] 另，有必要提供一種可過濾光線之光圈製作方法。 [0008] 一種光圈，其包括：一基體；至少一膜層，其可過濾光 線；一遮光層，具有一中心透光區；其中，該膜層及該 遮光層均設於該基體之表面。 [0009] 一種光圈製作方法，該光圈製作方法包括：提供一基體 :於基體之至少一側鍍覆至少一可過濾光線之膜層；於 該膜層上或相對該膜層之基體另一側鍍覆一遮光層；於 該遍光層上成型複數透光區；以每一透光區之中心切割 該基體而形成複數光圈。 [0010] 相較習知技術，該光圈不僅可控制數位相機之通光量， 且可過濾被攝物反射光線中之紅外線或紫外線，提高了 成像質量之同時，且省去了一濾光片，減小了數位相機 之體積。 [0011] 相較習知技術，該光圈製作方法不僅生產率高，且製作 簡單，降低了生產成本。 【實施方式】 [0012] 本發明較佳實施方式之光圈應用於數位相機内，用以控 制通光量，並可過濾被攝物體之反射光線中之紅外線。 094143611^^^^ A〇101 第4頁/共15頁 1013006690-0 1362562 101年01月06日修正替換頁 [0013] 請參見第一圖，該光圈10為一固定光圈，其大致為圓盤 狀。該光圈10包括一基體12、一膜層14及一遮光層16。 [0014] 該基體12大致為圓盤狀，其由高透光性之玻璃材料或塑 膠材料製成，如採用B270或BK7等玻璃材料，亦可採用聚 碳酸脂（Polycarbonate，以下簡稱PC)、環稀烴共聚物 (Cyclo Olefin Compolymercoc,以下簡稱 C0C)或環 稀共聚物（Cyclo Olefin Polymer，以下簡稱COP)等 塑膠材料。 [0015] 該膜層14鍍覆於該基體12之上，其係於該基體12之表面 藉由多層鍍膜工藝而形成。該膜層14可過濾被攝物反射 光線之紅外線或紫外線，從而提高數位相機之成像品質 〇 [0016] 該遮光層1 6設於該膜層14之上，其係由不透光之光阻劑 組成。該遮光層16僅形成於該膜層14之四周，從而於該 膜層14之中部形成一可透光之透光區162。該透光區162 大致為圓形，其直徑可依所需數位相機鏡頭之通光量加 以調整，藉由該透光區162可使光線通過，從而控制通光 量。 [0017] 該光圈10不僅可控制數位相機之通光量，且可過濾被攝 物反射光線中之紅外線或紫外線，提高了成像質量之同 時，且省去了一紅外截止濾光片，減小了數位相機之體 積。 [0018] 為製造光圈10，本發明較佳實施方式之光圈製作方法如 下： 09414361!^單編號腿01 第5頁/共15頁 1013006690-0 1362562 101年01月06日梭正替换百 [0019] 請參見第二圖，首先提供一基體12，該基體12可由玻璃 或塑膠等高透光性材質製成。如採用玻璃材料，其可為 無色光學玻璃B270或光學玻璃BK7 »如採用塑膠材料，其 可為聚碳酸脂（Polycarbonate，以下簡稱PC)、環稀烴 共聚物（Cyclo Olefin Compolymercoc,以下簡稱 C0C)或環稀共聚物（Cyclo Olefin Polymer，以下簡 稱COP)等。為批量化生產，該基體12可為一長方形板狀 ，藉由該基體12，可批量生產複數光圈。 [0020] 請參見第三圖，於該基體12上藉由蒸鍍方式鍍覆一層紅 外截止濾光薄膜或其他所需之濾光薄膜，從而形成一膜 層14。 [0021] 請參見第四圖，於該膜層14上藉由旋轉塗佈 (Spin-Coating)方式塗上一層不透光之光阻劑，該光阻 劑覆蓋整個膜層12之表面，從而形成一遮光層16。 [0022] 請參見第五圖及第六圖，藉由曝光顯影方式於該遮光層 16上形成複數與所需鏡頭之光圈孔徑相同之透光區162， 該透光區1 6 2形成一陣列，每一透光區1 6 2係去除該遮光 層16之部分所得。因該透光區162之成型方法採用曝光顯 影方式，故該透光區162之孔徑可小到幾十微米，適合應 用於小型鏡頭之光圈。 [0023] 將形成有膜層14及遮光層16之基體12切割，請參見第七 圖，首先將該板狀之基體12切割成條狀，其上之透光區 162排成一排。請參見第八圖，已切割好之基體12再藉由 衝頭20切割成與本發明光圈10相當之形狀及大小，從而 09414361产單編號A_ 第6頁/共15頁 1013006690-0 1362562 101年01月06日修正替換頁 完成該光圈10之製備。 [0024] 可以理解，該光圈之切割方式亦可將基體12切割成方形 ，再藉由研磨工藝將切割物磨成所需之圓形光圈形狀。 [0025] 可以理解，該光圈10可作為一濾光片應用於數位相機中 〇 [0026] 可以理解，該膜層14可設於該基體12之二側，該膜層14 可採用多個膜層來過濾光線内之雜散光線。 [0027] 可以理解，該膜層14可僅設於該基體12某側之中部，而 遮光層16僅設於基體10設有膜層14側之未設膜層14處。 [0028] 可以理解，可直接於該基體12上設置遮光層16，再於該 遮光層16之中部去除部分，並於該去除部分設置膜層14 [0029] 可以理解，該遮光層16並不限於設於該膜層14之四周， 可部分設於該膜層之鄰近四周處，而未設有遮光層16之 膜層14外周可藉由鏡筒之内徑來阻擋光線通過。 [0030] 可以理解，該遮光層16設於該基體12之一側，而該膜層 14設於該基體12之另一側。 [0031] 可以理解，該遮光層16之透光區162之形成方式亦可直接 於該膜層14之四周塗覆，而該膜層14之中部不需塗覆。 [0032] 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施例，本發 明之範圍並不以上述實施例為限，舉凡熟習本案技藝之 人士援依本發明之精神所作之等效修飾或變化，皆應涵 1013006690-0 09414361單編號A〇101 第7頁/共15頁 1362562 101年01月os日核正替換頁 蓋於以下申請專利範圍内。 【圖式簡單說明】 [0033] 第一圖係本發明較佳實施方式光圈之結構示意圖； [0034] 第二圖係本發明較佳實施方式光圈製作方法之基體立體 圖； [0035] 第三圖係本發明較佳實施方式光圈製作方法之基體鍍膜 後之立體圖； [0036] 第四圖係本發明較佳實施方式光圈製作方法之基體鍍有 遮蔽層之立體圖； [0037] 第五圖係本發明較佳實施方式光圈製作方法之曝光顯影 後之立體圖； [0038] 第六圖係本發明第五圖沿VI-VI之剖示圖； [0039] 第七圖係本發明第五圖沿VII-VII被切割後之立體圖； [0040] 第八圖係本發明較佳實施方式光圈製作方法之衝壓示意 圖。 【主要元件符號說明】 [0041] 光圈：10 [0042] 基體：12 [0043] 膜層：14 [0044] 遮光層：16 [0045] 透光區：162 09414361 产單編號 A〇101 第8頁/共15頁 1013006690-0 1362562 101年01月06日核正替換頁 [0046] 衝頭：20 09414361产單編號舰01 第9頁/共15頁 1013006690-01362562月06日 Shuttle page 6. Invention Description: [Technical Field] [0001] The present invention relates to an aperture and a method of fabricating the same, and more particularly to an aperture that can filter infrared or ultraviolet light and a method of fabricating the same. [Prior Art] [0002] With the development of multimedia technology, digital cameras and video cameras are increasingly favored by consumers. When people are pursuing miniaturization of digital cameras and cameras, the image quality of their images is higher. Claim. [0003] A digital camera generally includes a lens or a lens group and an image sensing element CCD (Charge Coupled Device, hereinafter referred to as CCD) or CMOS (Complementary Metal-Oxide Semiconductor, hereinafter referred to as CMOS) due to The wavelength sensing spectrum of the CCD or CMOS image sensing element ranges from about 350 to 150 nm, and the wavelength range of visible light is from 400 to 700 nm. The wavelength range is greater than 700 nra to 1000OOmn. The infrared wavelength range, that is, the CCD or CMOS image sensing element is not only sensible. Visible light is detected, and part of the infrared rays can be sensed, thus causing the image to be disturbed by infrared rays to cause noise, resulting in color distortion. [0004] In order to solve the above problem of color distortion, a general digital camera usually filters infrared light that is irradiated to a CCD or CMOS image sensing element by an infrared cut filter, which is usually transparent. The substrate is plated to form a corresponding film layer for preventing infrared rays from passing through 'avoiding the infrared rays incident on the image sensing element to interfere with noise during normal shooting to facilitate color reproduction. [0005] In addition, the digital camera needs to control the amount of light entering by the aperture size of an aperture. 09414361^ Early number Α0101 Page 3 / Total 15 page 1013006690-0 1362562 Correction of replacement of 100, The cut-off filter is an essential component of a digital camera. However, in the prior art, since the infrared cut filter and the aperture have a certain thickness, the above-mentioned component stacking increases the thickness of the product, and it is difficult to meet the demand for miniaturization of the digital camera module. SUMMARY OF THE INVENTION [0006] In view of the above, it is necessary to provide a diaphragm that can filter light; [0007] In addition, it is necessary to provide a method for fabricating a diaphragm that can filter light. [0008] An aperture comprising: a substrate; at least one film layer that filters light; a light shielding layer having a central light transmitting region; wherein the film layer and the light shielding layer are both disposed on a surface of the substrate. [0009] A method for manufacturing an aperture, the method for manufacturing an aperture comprising: providing a substrate: plating a film layer of at least one filterable light on at least one side of the substrate; on the film layer or on the other side of the substrate opposite to the film layer A light shielding layer is plated; a plurality of light transmitting regions are formed on the light passing layer; and the substrate is cut at a center of each light transmitting region to form a plurality of apertures. [0010] Compared with the prior art, the aperture can not only control the amount of light passing through the digital camera, but also filter the infrared or ultraviolet light in the reflected light of the object, thereby improving the image quality while eliminating a filter. Reduces the size of the digital camera. [0011] Compared with the prior art, the aperture manufacturing method is not only high in productivity, but also simple in production, and reduces production cost. [Embodiment] The aperture of the preferred embodiment of the present invention is applied to a digital camera to control the amount of light passing through, and to filter infrared rays in the reflected light of the object. 094143611^^^^ A〇101 Page 4 of 15 1013006690-0 1362562 Correction replacement page for January 06, 101 [0013] Please refer to the first figure, the aperture 10 is a fixed aperture, which is roughly a disc shape. The aperture 10 includes a base 12, a film layer 14, and a light shielding layer 16. [0014] The base body 12 is substantially disk-shaped, and is made of a glass material or a plastic material having high light transmittance. For example, a glass material such as B270 or BK7 may be used, and a polycarbonate (Polycarbonate, hereinafter referred to as PC) may be used. Plastic materials such as Cyclo Olefin Compolymer Coc (hereinafter referred to as C0C) or Cyclo Olefin Polymer (hereinafter referred to as COP). [0015] The film layer 14 is plated on the substrate 12, and is formed on the surface of the substrate 12 by a multilayer coating process. The film layer 14 can filter infrared rays or ultraviolet rays of the reflected light of the object, thereby improving the image quality of the digital camera. [0016] The light shielding layer 16 is disposed on the film layer 14 and is made of an opaque photoresist. Composition. The light shielding layer 16 is formed only around the film layer 14 to form a light transmissive light transmitting region 162 in the middle of the film layer 14. The light transmissive region 162 is substantially circular, and its diameter can be adjusted according to the amount of light passing through the desired number of camera lenses. The light transmitting region 162 allows light to pass therethrough, thereby controlling the amount of light passing through. [0017] The aperture 10 can not only control the amount of light passing through the digital camera, but also filter infrared rays or ultraviolet rays in the reflected light of the object, thereby improving the image quality, and eliminating an infrared cut filter, thereby reducing The size of the digital camera. [0018] In order to manufacture the aperture 10, the aperture manufacturing method of the preferred embodiment of the present invention is as follows: 09414361!^single number leg 01 page 5/total 15 page 1013006690-0 1362562 101 January 2011 shuttle is replacing 100 [0019] Referring to the second figure, a substrate 12 is first provided. The substrate 12 can be made of a highly translucent material such as glass or plastic. If a glass material is used, it may be a colorless optical glass B270 or an optical glass BK7. For example, a plastic material may be used, which may be a polycarbonate (Polycarbonate, hereinafter referred to as PC) or a Cyclo Olefin Compolymer Coc (hereinafter referred to as C0C). Or Cyclo Olefin Polymer (hereinafter referred to as COP). For mass production, the substrate 12 can be a rectangular plate shape, and the substrate 12 can mass produce a plurality of apertures. Referring to FIG. 3, a film 14 is formed by depositing an infrared cut-off filter film or other desired filter film on the substrate 12 by evaporation. [0021] Referring to the fourth figure, a opaque photoresist is coated on the film layer 14 by spin-coating, and the photoresist covers the surface of the entire film layer 12, thereby A light shielding layer 16 is formed. [0022] Referring to FIG. 5 and FIG. 6 , a light-transmissive region 162 having the same aperture as the aperture of the desired lens is formed on the light-shielding layer 16 by an exposure and development method, and the light-transmissive region 162 forms an array. Each of the light transmitting regions 162 is obtained by removing a portion of the light shielding layer 16. Since the light-transmissive region 162 is formed by an exposure development method, the light-transmitting region 162 can be as small as several tens of micrometers, and is suitable for use in a small lens aperture. [0023] The substrate 12 on which the film layer 14 and the light shielding layer 16 are formed is cut. Referring to the seventh drawing, the plate-shaped substrate 12 is first cut into strips, and the light-transmissive regions 162 are arranged in a row. Referring to the eighth figure, the cut substrate 12 is further cut by the punch 20 into a shape and size corresponding to the aperture 10 of the present invention, thereby making the number of the 0414361 order number A_ page 6 / page 15 1013006690-0 1362562 101 years The correction of the replacement page on January 06 completes the preparation of the aperture 10. [0024] It can be understood that the cutting mode of the aperture can also cut the base body 12 into a square shape, and then the cutting object is ground into a desired circular aperture shape by a grinding process. [0025] It can be understood that the aperture 10 can be used as a filter in a digital camera. [0026] It can be understood that the film layer 14 can be disposed on two sides of the substrate 12, and the film layer 14 can adopt multiple films. Layers filter the stray light in the light. It can be understood that the film layer 14 can be disposed only on a certain side of the substrate 12, and the light shielding layer 16 is disposed only on the film layer 14 on the film layer 14 side of the substrate 10. [0028] It can be understood that the light shielding layer 16 can be directly disposed on the substrate 12, and then the portion of the light shielding layer 16 is removed, and the film layer 14 is disposed on the removed portion. [0029] It can be understood that the light shielding layer 16 is not It is limited to be disposed around the film layer 14 and may be partially disposed adjacent to the film layer, and the outer periphery of the film layer 14 not provided with the light shielding layer 16 may block the passage of light through the inner diameter of the lens barrel. [0030] It can be understood that the light shielding layer 16 is disposed on one side of the substrate 12, and the film layer 14 is disposed on the other side of the substrate 12. It can be understood that the transparent region 162 of the light shielding layer 16 can also be formed directly around the film layer 14, and the middle portion of the film layer 14 does not need to be coated. [0032] In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. Ying Han 1013006690-0 09414361 Single No. A〇101 Page 7 of 15 Page 1362256 The January 2011 os day nuclear replacement page is covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0033] The first drawing is a schematic structural view of a preferred embodiment of the present invention; [0034] The second drawing is a perspective view of a substrate according to a preferred embodiment of the present invention; [0035] FIG. 4 is a perspective view showing a substrate coated with a shielding layer in a preferred embodiment of the aperture manufacturing method according to the preferred embodiment of the present invention; [0037] FIG. BRIEF DESCRIPTION OF THE DRAWINGS The present invention is a perspective view of the aperture manufacturing method after exposure and development; [0038] FIG. 6 is a cross-sectional view of the fifth embodiment of the present invention taken along line VI-VI; [0039] The seventh diagram is a fifth diagram of the present invention along the VII -VII is a perspective view after being cut; [0040] The eighth figure is a stamping diagram of a preferred embodiment of the aperture manufacturing method of the present invention. [Main component symbol description] [0041] Aperture: 10 [0042] Base: 12 [0043] Film layer: 14 [0044] Light shielding layer: 16 [0045] Light transmission area: 162 09414361 Production order number A〇101 Page 8 / Total 15 pages 1013006690-0 1362562 January 06, 101 nuclear replacement page [0046] Punch: 20 09414361 single number ship 01 page 9 / a total of 15 pages 1013006690-0