JP4358694B2 - Image input device, digital camera, and portable information terminal device - Google Patents

Image input device, digital camera, and portable information terminal device Download PDF

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JP4358694B2
JP4358694B2 JP2004208004A JP2004208004A JP4358694B2 JP 4358694 B2 JP4358694 B2 JP 4358694B2 JP 2004208004 A JP2004208004 A JP 2004208004A JP 2004208004 A JP2004208004 A JP 2004208004A JP 4358694 B2 JP4358694 B2 JP 4358694B2
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image input
input device
filter
image
imaging
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JP2006033297A (en
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茂 入沢
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Ricoh Co Ltd
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Description

本発明は画像入力装置、デジタルカメラ及び携帯情報端末装置に関し、詳細にはデジタルカメラ等の画像入力装置に備わっている光学ローパスフィルタや赤外線カットフィルタの保持構造の改良に関する。   The present invention relates to an image input device, a digital camera, and a portable information terminal device, and more particularly to an improvement in a holding structure for an optical low-pass filter and an infrared cut filter provided in an image input device such as a digital camera.

従来より、デジタルカメラ等の画像入力装置に備えられ、光学的疑似信号を濾波して画質の劣化を防止するための光学ローパスフィルタが知られている。更に、この光学ローパスフィルタには、赤外線を遮断するための手段として、赤外線カットフィルタが採用されている。これらの光学ローパスフィルタや赤外線カットフィルタなどを装置内に搭載するために、保持部材や押え部材などを用いて保持していた。これらの保持部材や押え部材の技術として、従来よりいくつかの提案がなされている。その一つとして、特許文献１には、ＣＣＤなどの半導体機能デバイスに保護ガラスを介して光学ローパスフィルタが重置されて配置される取付プレートに取り付けられた半導体機能デバイスや光学ローパスフィルタを被覆するホルダーの内部に、圧縮されて囲鐃した光学ローパスフィルタを位置決め固定する弾性保持部材を配置した光学ローパスフィルタの保持構造が提案されている。
特開平６−１６０７７６号公報 2. Description of the Related Art Conventionally, an optical low-pass filter that is provided in an image input device such as a digital camera and that filters optical pseudo signals to prevent deterioration of image quality is known. Further, this optical low-pass filter employs an infrared cut filter as a means for blocking infrared rays. In order to mount these optical low-pass filters, infrared cut filters, and the like in the apparatus, they are held using a holding member, a holding member, or the like. Conventionally, several proposals have been made as techniques for these holding members and pressing members. As one example, Patent Document 1 covers a semiconductor functional device or an optical low-pass filter attached to a mounting plate in which an optical low-pass filter is placed on a semiconductor functional device such as a CCD through a protective glass. An optical low-pass filter holding structure has been proposed in which an elastic holding member for positioning and fixing an optical low-pass filter that is compressed and surrounded is disposed inside the holder.
Japanese Unexamined Patent Publication No. 6-160776

しかしながら、上記特許文献１によれば、弾性保持部材を配置するスペースが必要となり、小型化及び部品点数の削減化が困難であった。   However, according to Patent Document 1, a space for arranging the elastic holding member is required, and it is difficult to reduce the size and the number of parts.

本発明はこの問題点を解決するためのものであり、保持部材や押え部材を用いずに、光学ローパスフィルタや赤外線カットフィルタを保護部材に接合固定することによって小型化と部品点数の削減を実現できる、画像入力装置、デジタルカメラ及び携帯情報端末装置を提供することを目的とする。   The present invention is intended to solve this problem, and realizes downsizing and reduction in the number of parts by bonding and fixing an optical low-pass filter and an infrared cut filter to a protective member without using a holding member or a holding member. An object of the present invention is to provide an image input device, a digital camera, and a portable information terminal device.

前記問題点を解決するために、本発明の画像入力装置は、被写体光学像を結像光学系を介して結像させた結像面に配置されて被写体光学像を撮像する撮像素子を用いて被写体の画像を取り込む。また、本発明の画像入力装置は、撮像素子を保持し保護するパッケージ部材と、パッケージ部材に設けられた結像光学系を透過した光を透過する光透過性を有する保護部材と、保護部材の外面に結像光学系を透過し、結像のための有効光束のための開口部を有するマスク部材と、マスク部材の外面でマスク部材と接着剤で接合固着され、赤外線カットコーティングを有するフィルタである光学的なフィルタ部材とを有している。更に、本発明の画像入力装置は、マスク部材が印刷により保護部材上又はフィルタ部材上に形成され、赤外線カットコーティングの面が保護部材とフィルタ部材間に位置することに特徴がある。よって、小型化、部品点数の削減を実現できる画像入力装置を提供できる。 In order to solve the above problems, an image input apparatus according to the present invention uses an imaging element that is disposed on an imaging surface on which a subject optical image is formed via an imaging optical system and picks up the subject optical image. Capture the subject image. The image input apparatus of the present invention, a protective member having a package member to protect holding the image pickup device, optical transparency for transmitting the light transmitted through an imaging optical system provided in the package member, the protective member A mask member that has an imaging optical system transmitted to the outer surface and has an opening for an effective light beam for imaging, and a filter having an infrared cut coating that is bonded and fixed to the mask member and an adhesive on the outer surface of the mask member. And an optical filter member. Furthermore, the image input apparatus of the present invention is characterized in that the mask member is formed on the protective member or the filter member by printing, and the surface of the infrared cut coating is located between the protective member and the filter member. Therefore, it is possible to provide an image input apparatus that can be downsized and reduce the number of components.

更に、マスク部材はシート状の部材であることにより、画像入力装置の小型化と部品点数の削減を実現できる。   Further, since the mask member is a sheet-like member, the image input device can be reduced in size and the number of parts can be reduced.

更に、フィルタ部材が紫外線領域の波長光の透過率を減衰するコーティング面を有したことにより、紫外線硬化型接着剤の硬化時の紫外線照射光から撮像素子を保護することができる。   Furthermore, since the filter member has a coating surface that attenuates the transmittance of light having a wavelength in the ultraviolet region, it is possible to protect the image sensor from ultraviolet irradiation light when the ultraviolet curable adhesive is cured.

また、マスク部材の大きさがフィルタ部材の大きさより大きく、外周部に切欠き部を有し、切欠き部で接着固定することにより、より一層小型で部品点数の少ない画像入力装置を構成することができる。   Further, the size of the mask member is larger than the size of the filter member, the outer peripheral portion has a cutout portion, and the image input device is further reduced in size and has a smaller number of parts by being bonded and fixed at the cutout portion. Can do.

更に、別の発明としてのデジタルカメラは、上記の画像入力装置を具備することにより、小型化及び部品点数の削減が図れ、安価なデジタルカメラを実現することができる。   Furthermore, a digital camera as another invention is provided with the above-described image input device, whereby a reduction in size and a reduction in the number of parts can be achieved, and an inexpensive digital camera can be realized.

また、別の発明としての携帯情報端末装置は、上記の画像入力装置を具備することにより、薄型化、小型化及び低価格化を図ることができる携帯情報端末装置を実現できる。   Moreover, the portable information terminal device as another invention can realize a portable information terminal device that can be reduced in thickness, size, and price by providing the image input device.

本発明の画像入力装置によれば、マスク部材が印刷により保護部材上又はフィルタ部材上に形成され、赤外線カットコーティングの面が保護部材とフィルタ部材間に位置することにより、小型化、かつ部品点数の削減化を図れる。
According to the image input device of the present invention, the mask member is formed on the protective member or the filter member by printing, and the surface of the infrared cut coating is located between the protective member and the filter member , thereby reducing the size and the number of parts. Can be reduced.

図１は本発明の第１の実施の形態例に係る画像入力装置の保持構造を示す斜視図であり、図２は第１の実施の形態例の画像入力装置の保持構造を示す断面図である。図１及び図２において、第１の実施の形態例の画像入力装置１０は、撮像素子１、パッケージ部材２、カバーガラス３、光学ローパスフィルタ４及びＣＣＤ基板５を含んで構成されている。また、両図に示すように、撮像素子１を保持するとともに保護するパッケージ部材２に固定された保護部材であるカバーガラス３上に、接着剤６により光学ローパスフィルタ４が接合固着されている。また、パッケージ部材２はＣＣＤ基板５の穴部で接着剤７により固定されている。更に、光学ローパスフィルタ４には、赤外線カットコーティングがカバーガラス３側に施されていることにより、比較的に撮像素子１の近傍に位置され、カバーガラス３や撮像素子１で反射した光の赤外カットコーティング面での折り返し反射による撮影像中のゴースト像の拡大とゴースト像の光源像からの離反を減少させている。ここで、接着剤６は、屈折率がカバーガラス３の屈折率とほぼ等しいｎｄ＝１．５となる接着剤を使用しており、カバーガラス３と接着剤６の界面で発生する反射を軽減し、撮影画面中に発生するゴーストを軽減している。   FIG. 1 is a perspective view showing a holding structure of an image input apparatus according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a holding structure of the image input apparatus according to the first embodiment. is there. 1 and 2, an image input device 10 according to the first embodiment includes an image sensor 1, a package member 2, a cover glass 3, an optical low-pass filter 4, and a CCD substrate 5. Also, as shown in both figures, an optical low-pass filter 4 is bonded and fixed by an adhesive 6 on a cover glass 3 that is a protective member fixed to a package member 2 that holds and protects the image sensor 1. Further, the package member 2 is fixed by an adhesive 7 in a hole portion of the CCD substrate 5. Further, since the optical low-pass filter 4 is provided with an infrared cut coating on the cover glass 3 side, the optical low-pass filter 4 is positioned relatively near the image pickup device 1, and the red of the light reflected by the cover glass 3 or the image pickup device 1. The enlargement of the ghost image in the photographed image and the separation of the ghost image from the light source image are reduced by the reflected reflection on the outer cut coating surface. Here, the adhesive 6 uses an adhesive whose refractive index is nd = 1.5, which is substantially equal to the refractive index of the cover glass 3, and reduces reflection that occurs at the interface between the cover glass 3 and the adhesive 6. Ghosts that occur during the shooting screen are reduced.

このように保持構造を有する第１の実施の形態例の画像入力装置１０は、ベースに組付けた状態を示す斜視図である図３及び断面図である図４からわかるように、ベース８に組付けられて固定されている。そして、図５に示すように、第１の実施の形態例の画像入力装置１０は、ＣＣＤ基板５に設けられているネジ穴（図示せず）でネジ９によりベース８に固定されている。なお、ベース８は図３に示す開口部１１を有し開口側端面部には面取り部（図示せず）を設け撮像素子１に到達する有害な発射光の発生を防止している。   The image input apparatus 10 according to the first embodiment having the holding structure as described above is formed on the base 8 as shown in FIG. 3 which is a perspective view showing a state assembled to the base and FIG. 4 which is a cross-sectional view. It is assembled and fixed. As shown in FIG. 5, the image input device 10 of the first embodiment is fixed to the base 8 with screws 9 in screw holes (not shown) provided in the CCD substrate 5. The base 8 has an opening 11 shown in FIG. 3, and a chamfered portion (not shown) is provided on the opening-side end surface portion to prevent generation of harmful emitted light that reaches the image sensor 1.

図６は本発明の第２の実施の形態例に係る画像入力装置の保持構造を示す断面図である。図７は第２の実施の形態例の画像入力装置の分解斜視図である。両図において、図１と同じ参照符号は同じ構成要を示す。図６及び図７に示す第２の実施の形態例の画像入力装置２０において、図１〜図５に示す第１の実施の形態例と異なる構成要素は、マスク部材２１を用いている。図６に示すように、カバーガラス３と光学ローパスフィルタ４の間に光透過性を有さず光反射の発生しにくいシート状のマスク部材２１が配置されている。このマスク部材２１の形状は撮影光学系レンズを透過した光束が撮像素子１に到達するための開口部を有し、その大きさは撮像素子１以外の部分に到達する光を極力遮光する大きさで撮像素子１の近傍で発生する光反射によるゴーストフレアを軽減しており、またマスク部材２１の外形は図７に示すように光学ローパスフィルタ４の外形サイズより大きく、マスク部材２１の外周部における四隅には切欠き部２２を有している。そして、図８に示すような組立られた状態の対物側からの見て、マスク部材２１の切欠き部２２において紫外線硬化型接着剤２３により光学ローパスフィルタ４とマスク部材２１をカバーガラス３に固着している。光学ローパスフィルタ４は赤外線カットと紫外線を減衰するコーティングが施されており、紫外線硬化型接着剤２３の硬化時に照射する紫外線光の撮像素子１への到達量をマスク部材２１と共に減少させ撮像素子１の紫外線光による破壊を防いでいる。また、紫外線硬化型接着剤２３の特性として黒色又は反射、透過の低い接着剤を用いることで、紫外線硬化型接着剤２３による反射光、透過光によるフレア、ゴーストを低減できる。更に、マスク部材２１に切欠き部２２を設けることにより、紫外線硬化型接着剤２３の充填空間を確保し構成部品の確実な接着と紫外線硬化型接着剤２３の周辺へのはみ出しを防止できる。   FIG. 6 is a cross-sectional view showing the holding structure of the image input apparatus according to the second embodiment of the present invention. FIG. 7 is an exploded perspective view of the image input apparatus according to the second embodiment. In both figures, the same reference numerals as those in FIG. 1 indicate the same components. In the image input device 20 according to the second embodiment shown in FIGS. 6 and 7, the mask member 21 is used as a component different from the first embodiment shown in FIGS. As shown in FIG. 6, a sheet-like mask member 21 that does not transmit light and hardly causes light reflection is disposed between the cover glass 3 and the optical low-pass filter 4. The shape of the mask member 21 has an opening for allowing the light beam that has passed through the photographing optical system lens to reach the image sensor 1, and the size of the mask member 21 is such that the light reaching the part other than the image sensor 1 is shielded as much as possible. Thus, the ghost flare caused by light reflection generated in the vicinity of the image sensor 1 is reduced, and the outer shape of the mask member 21 is larger than the outer size of the optical low-pass filter 4 as shown in FIG. There are notches 22 at the four corners. Then, the optical low-pass filter 4 and the mask member 21 are fixed to the cover glass 3 by the ultraviolet curable adhesive 23 at the notch 22 of the mask member 21 when viewed from the objective side in the assembled state as shown in FIG. is doing. The optical low-pass filter 4 is coated with infrared rays and attenuates ultraviolet rays, and reduces the amount of ultraviolet light that is irradiated when the ultraviolet curable adhesive 23 is cured together with the mask member 21 to reduce the amount of the ultraviolet light that reaches the image pickup device 1. The destruction by UV light is prevented. In addition, by using an adhesive that is black or has low reflection and transmission as a characteristic of the ultraviolet curable adhesive 23, flare and ghost due to reflected light, transmitted light, and transmitted light can be reduced. Furthermore, by providing the notch 22 in the mask member 21, it is possible to secure a space for filling the ultraviolet curable adhesive 23 and prevent the component parts from being securely bonded and the ultraviolet curable adhesive 23 from protruding to the periphery.

図９は光学ローパスフィルタに形成された印刷マスク部材の構成を示す平面図である。同図に示すように、印刷マスク部材３０の印刷範囲３１に遮光性の塗料で形成され、光透過部３２の大きさは撮像素子１以外の部分に到達する光を極力遮光する大きさである。よって、このように光学ローパスフィルタに形成された印刷マスク部材により、撮像素子の近傍で発生する光反射によるゴーストフレアが軽減できる。   FIG. 9 is a plan view showing a configuration of a printing mask member formed on the optical low-pass filter. As shown in the figure, the printing area 31 of the printing mask member 30 is formed of a light-shielding paint, and the size of the light transmission portion 32 is a size that shields the light reaching the portion other than the image sensor 1 as much as possible. . Therefore, a ghost flare caused by light reflection generated in the vicinity of the image sensor can be reduced by the print mask member formed on the optical low-pass filter in this way.

以上説明したように、第１、第２の実施の形態例のような構成にすることにより、光学ローパスフィルタとカバーガラスの間へのゴミの進入を防げるとともに、光学ローパスフィルタの保持構造を鏡胴構成部品に設ける必要がなく、小型化、薄型化、部品構成部品の点数の低減が可能である。また、光路中の反射面を減少し、マスク部材による有害光の素子面への進入を遮断可能にでき、像性能向上が可能になる。   As described above, by adopting the configuration as in the first and second embodiments, dust can be prevented from entering between the optical low-pass filter and the cover glass, and the optical low-pass filter holding structure can be mirrored. There is no need to provide it on the body component, and it is possible to reduce the size and thickness of the body component and reduce the number of component components. Further, the number of reflection surfaces in the optical path can be reduced, and the entry of harmful light to the element surface by the mask member can be blocked, thereby improving the image performance.

図１０は別の発明のデジタルカメラの構成を示す断面図である。同図において、図１と同じ参照符号は同じ構成要素を示す。本発明のデジタルカメラ４０は、主に、カメラ本体４１と撮影レンズ４２を有し、カメラ本体４１の前面に撮影レンズ４２が装着され、撮影レンズ４２には、撮影レンズ部４３及び絞り４４等が装備されている。撮影レンズ４２の光路方向後方には、カメラ本体４１内の後部上方に回動変位可能な各ミラー（図示せず）が配設され、さらにその後方に上述した光学ローパスフィルタ４、当該光学ローパスフィルタ４が接着剤で接合固定される保護部材であるカバーガラス３、そして撮像素子１が配置されている。また、光路の一部はプリズム（図示せず）を介して接眼部４５に導かれている。このように、保持部材を用いることなく、光学ローパスフィルタ４を保護部材であるカバーガラス３に接着剤で接合固定することにより、小型化及び部品点数の削減が図れ、安価なデジタルカメラを実現することができる。   FIG. 10 is a cross-sectional view showing the configuration of a digital camera of another invention. In the figure, the same reference numerals as those in FIG. 1 denote the same components. The digital camera 40 of the present invention mainly includes a camera body 41 and a photographing lens 42, and the photographing lens 42 is mounted on the front surface of the camera body 41. The photographing lens 42 includes a photographing lens unit 43, a diaphragm 44, and the like. Equipped. On the rear side of the photographic lens 42 in the optical path direction, each mirror (not shown) that can be rotationally displaced is disposed above the rear part in the camera body 41, and further, the optical low-pass filter 4 and the optical low-pass filter described above are further provided behind the mirror. A cover glass 3 that is a protective member 4 is fixedly bonded with an adhesive, and an image sensor 1 are arranged. A part of the optical path is led to the eyepiece 45 via a prism (not shown). In this way, the optical low-pass filter 4 is bonded and fixed to the cover glass 3 as a protective member with an adhesive without using a holding member, so that the size and the number of parts can be reduced and an inexpensive digital camera is realized. be able to.

図１１は別の発明の携帯情報端末装置の一例である携帯電話機を示す斜視図である。同図に示すように、別の発明の携帯情報端末装置の一例として携帯電話機５０にはデジタルカメラ５１が搭載されている。このデジタルカメラ５１は、上述したような撮像素子、光学ローパスフィルタを具備する撮像ユニットを有している。本発明の携帯情報端末装置においても、上述したように、保持部材を用いることなく、光学ローパスフィルタを保護部材であるカバーガラスに接着剤で接合固定することにより、薄型化、小型化及び低価格化を図ることができる携帯情報端末装置を実現できる。なお、携帯情報端末装置の他の例には、デジタルカメラ搭載のノートパソコン等がある。   FIG. 11 is a perspective view showing a cellular phone which is an example of a portable information terminal device of another invention. As shown in the figure, a digital camera 51 is mounted on a mobile phone 50 as an example of a portable information terminal device of another invention. The digital camera 51 has an image pickup unit including the image pickup element and the optical low-pass filter as described above. Also in the portable information terminal device of the present invention, as described above, the optical low-pass filter is bonded and fixed to the cover glass as a protective member with an adhesive without using a holding member, thereby reducing the thickness, size and cost. A portable information terminal device can be realized. Another example of the portable information terminal device is a notebook computer equipped with a digital camera.

なお、本発明は上記実施の形態例に限定されるものではなく、特許請求の範囲内の記載であれば多種の変形や置換可能であることは言うまでもない。   The present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and substitutions are possible as long as they are described within the scope of the claims.

本発明の第１の実施の形態例に係る画像入力装置の保持構造を示す斜視図である。It is a perspective view which shows the holding structure of the image input device which concerns on the 1st Example of this invention. 第１の実施の形態例の画像入力装置の保持構造を示す断面図である。It is sectional drawing which shows the holding structure of the image input device of 1st Example. 第１の実施の形態例の画像入力装置をベースに組付けた状態を示す斜視図である。It is a perspective view which shows the state assembled | attached to the base of the image input device of the 1st Embodiment. 第１の実施の形態例の画像入力装置をベースに組付けた状態を示す断面図である。It is sectional drawing which shows the state assembled | attached to the base of the image input device of the example of 1st Embodiment. 第１の実施の形態例の画像入力装置をベースに組付けた状態を示す部分拡大図である。It is the elements on larger scale which show the state assembled | attached to the base of the image input device of the 1st Example. 本発明の第２の実施の形態例の画像入力装置の保持構造を示す断面図である。It is sectional drawing which shows the holding structure of the image input device of the 2nd Example of this invention. 第２の実施の形態例の画像入力装置の分解斜視図である。It is a disassembled perspective view of the image input device of the example of a 2nd embodiment. 第２の実施の形態例の画像入力装置の保持構造を示す平面図である。It is a top view which shows the holding structure of the image input device of 2nd Example. 光学ローパスフィルタに印刷マスク部材の構成を示す平面図である。It is a top view which shows the structure of a printing mask member in an optical low-pass filter. 別の発明のデジタルカメラの構成を示す断面図である。It is sectional drawing which shows the structure of the digital camera of another invention. 別の発明の携帯情報端末装置の一例である携帯電話機を示す斜視図である。It is a perspective view which shows the mobile telephone which is an example of the portable information terminal device of another invention.

符号の説明Explanation of symbols

１；撮像素子、２；パッケージ部材、３；カバーガラス、
４；光学ローパスフィルタ、５；ＣＣＤ基板、６，７；接着剤、
８；ベース、９；ネジ、１０，２０；画像入力装置、
２１；マスク部材、２２；切欠き部、２３；紫外線硬化型接着剤、
３１；印刷マスク部材、３２；印刷範囲、３３；光透過部、
４０，５１；デジタルカメラ、４１；カメラ本体、４２；撮影レンズ、
４３；撮影レンズ部、４４；絞り、４５；接眼部、
５０；携帯電話機。 1; imaging device, 2; package member, 3; cover glass,
4; optical low-pass filter, 5; CCD substrate, 6, 7; adhesive,
8; Base, 9; Screw, 10, 20; Image input device,
21; Mask member, 22; Notch, 23; UV curable adhesive,
31; Print mask member, 32; Print range, 33; Light transmission part,
40, 51; digital camera, 41; camera body, 42; photographing lens,
43; photographing lens part, 44; aperture, 45; eyepiece part,
50: Mobile phone.

Claims (6)

被写体光学像を結像光学系を介して結像させた結像面に配置されて該被写体光学像を撮像する撮像素子を用いて被写体の画像を取り込む画像入力装置において、
前記撮像素子を保持し保護するパッケージ部材と、該パッケージ部材に設けられた前記結像光学系を透過した光を透過する光透過性を有する保護部材と、該保護部材の外面に前記結像光学系を透過し、結像のための有効光束のための開口部を有するマスク部材と、該マスク部材の外面で前記マスク部材と接着剤で接合固着され、赤外線カットコーティングを有するフィルタである光学的なフィルタ部材とを有し、
前記マスク部材が印刷により前記保護部材上又は前記フィルタ部材上に形成され、前記赤外線カットコーティングの面が前記保護部材と前記フィルタ部材間に位置することを特徴とする画像入力装置。 In an image input device that captures an image of a subject using an imaging device that is disposed on an imaging surface on which the subject optical image is imaged via an imaging optical system and captures the subject optical image.
A package member that holds and protects the imaging device, a protective member that transmits light that has passed through the imaging optical system provided on the package member, and the imaging optics on the outer surface of the protective member An optical filter which is a filter having an infrared cut coating that is transmitted through the system and has an opening for an effective light beam for imaging, and an outer surface of the mask member bonded and fixed to the mask member with an adhesive. It has a and a filter member,
The image input device, wherein the mask member is formed on the protective member or the filter member by printing, and the surface of the infrared cut coating is located between the protective member and the filter member . 前記マスク部材はシート状の部材である請求項１記載の画像入力装置。 The image input device according to claim 1 , wherein the mask member is a sheet-like member . 前記フィルタ部材が紫外線領域の波長光の透過率を減衰するコーティング面を有する請求項１記載の画像入力装置。 The image input device according to claim 1, wherein the filter member has a coating surface that attenuates the transmittance of wavelength light in the ultraviolet region . 前記マスク部材の大きさが前記フィルタ部材の大きさより大きく、前記マスク部材の外周部に設けられた切欠き部で前記フィルタ部材と前記保護部材とが接着固定されている請求項１記載の画像入力装置。 Greater than the size of the size of the filter member of the mask member, an image input of the filter member and the protective member and the claim 1 is bonded and fixed by the notch provided on an outer peripheral portion of the mask member apparatus. 請求項１〜４のいずれかに記載の画像入力装置を具備したことを特徴とするデジタルカメラ。 A digital camera comprising the image input device according to claim 1 . 請求項１〜４のいずれかに記載の画像入力装置を具備したことを特徴とする携帯情報端末装置。 A portable information terminal device comprising the image input device according to claim 1 .
JP2004208004A 2004-07-15 2004-07-15 Image input device, digital camera, and portable information terminal device Expired - Fee Related JP4358694B2 (en)

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