JPH0983736A - Light quantity detection member and image input device having this light quantity detection member - Google Patents
Light quantity detection member and image input device having this light quantity detection memberInfo
- Publication number
- JPH0983736A JPH0983736A JP7241701A JP24170195A JPH0983736A JP H0983736 A JPH0983736 A JP H0983736A JP 7241701 A JP7241701 A JP 7241701A JP 24170195 A JP24170195 A JP 24170195A JP H0983736 A JPH0983736 A JP H0983736A
- Authority
- JP
- Japan
- Prior art keywords
- light
- ccd
- optical lens
- light receiving
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Control Of Exposure In Printing And Copying (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はコンピュータ、カラ
ースキャナ、バーコードリーダ、ＯＣＲ用スキャナ、フ
ァクシミリ、携帯端末、デジタルコピー機、製版機なら
びにエリアＣＣＤを用いた放送用テレビカメラ、８ｍｍ
ビデオ、電子スチルカメラなどに用いられる光量検出部
材およびこの光量検出部材を搭載した画像入力装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer, a color scanner, a bar code reader, an OCR scanner, a facsimile, a mobile terminal, a digital copying machine, a plate making machine and a broadcasting television camera using an area CCD, 8 mm.
The present invention relates to a light amount detecting member used for video and electronic still cameras, and an image input device equipped with the light amount detecting member.
【０００２】[0002]
【従来の技術】近年、通信技術の進展は著しく、そのた
めの各種情報伝達または情報収集のデバイスが開発され
ている。そして、携帯端末用に使用するデバイスであれ
ば、小型化が市場のニーズとなっている。2. Description of the Related Art In recent years, communication technology has made remarkable progress, and various information transmission or information collection devices have been developed for that purpose. For devices used for mobile terminals, downsizing has become a market need.
【０００３】上記デバイス（画像入力装置）として、画
像情報を検知するためのイメージセンサがあり、ＣＣＤ
方式とＣＩＳ方式（密着型イメージセンサ）との２種類
に区分される。ＣＣＤ方式であれば、ＣＩＳ方式と比べ
て５ｍｍ以上の焦点深度（焦点位置からのずれに対する
認識の許容特性）が得られるので、この程度の焦点深度
により携帯端末用デバイスとして使用した場合に実用性
が高まるという特長がある。As the above device (image input device), there is an image sensor for detecting image information, and a CCD
Method and CIS method (contact type image sensor). The CCD method can obtain a depth of focus of 5 mm or more (acceptance characteristic for recognition of deviation from the focus position) as compared with the CIS method. Therefore, with this depth of focus, it is practical when used as a device for a mobile terminal. Has the advantage that
【０００４】上記ＣＣＤ方式デバイスは、ＣＣＤパッケ
ージ内にＣＣＤチップを設けて、封止ガラスでもってＣ
ＣＤチップを封止したものを使用する構成であるが、他
方、本発明者はＣＣＤパッケージを使用しないＣＣＤ方
式デバイスを提案した（特願平７−１６１９１０号参
照）。In the above CCD type device, a CCD chip is provided in a CCD package, and C is provided with a sealing glass.
Although the structure uses a sealed CD chip, the present inventor has proposed a CCD type device which does not use a CCD package (see Japanese Patent Application No. Hei 7-161910).
【０００５】図７は上記提案のＣＣＤ方式デバイスの要
部である光量検出部材１の断面図である。この光量検出
部材１によれば、おおむね円錐形状のレンズ固定用筐体
２の円筒体内部に光学レンズ３を固定し、光学レンズ３
と対向する部位に回路基板４を固定し、これら光学レン
ズ３と筐体２と回路基板４とにより密閉空間５を形成
し、さらに回路基板４の上に受光部を露出した状態（ベ
アチップ状）のＣＣＤ６を固定し、その各電極をボンデ
ィングワイヤーでもって回路基板４へ導通させている。
また、７は回路基板４に対する補強板、８は回路基板４
と補強板６とを筐体２に固定するためのネジ、９はコネ
クタである。FIG. 7 is a sectional view of a light amount detecting member 1 which is a main part of the proposed CCD type device. According to this light amount detecting member 1, the optical lens 3 is fixed inside the cylindrical body of the lens fixing housing 2 having a substantially conical shape, and the optical lens 3
A state in which a circuit board 4 is fixed to a portion opposed to, a sealed space 5 is formed by the optical lens 3, the housing 2, and the circuit board 4, and a light receiving portion is exposed on the circuit board 4 (bare chip shape). The CCD 6 is fixed, and each electrode thereof is electrically connected to the circuit board 4 by a bonding wire.
Further, 7 is a reinforcing plate for the circuit board 4, and 8 is the circuit board 4.
A screw for fixing the reinforcing plate 6 and the reinforcing plate 6 to the housing 2, and 9 is a connector.
【０００６】上記構成の光量検出部材１においては、光
学レンズ３と筐体２と回路基板４とにより密閉空間５を
形成し、その密閉空間５を光学レンズ３を通してＣＣＤ
６の受光部に集光せしめるように寸法設定した構成にし
ているので、その受光部が塵や埃などにより汚染されな
くなり、さらに受光部と光学レンズ３との間を筐体２で
もって光学調整をおこなった一個の製品化した部品が得
られた。しかも、ＣＣＤパッケージを不要とすること
で、その分、寸法や空間が狭くなり、これによって小型
化が達成できた。In the light amount detecting member 1 having the above structure, the optical lens 3, the housing 2 and the circuit board 4 form a closed space 5, and the closed space 5 is passed through the optical lens 3 to form a CCD.
Since the size of the light receiving unit 6 is set so that the light can be focused on the light receiving unit 6, the light receiving unit is prevented from being contaminated by dust and the like, and the housing 2 is provided between the light receiving unit and the optical lens 3 for optical adjustment. As a result, one commercialized part was obtained. Moreover, by eliminating the need for a CCD package, the size and space are correspondingly narrowed, and thereby miniaturization can be achieved.
【０００７】他方、ＣＣＤパッケージを使用したデバイ
ス、特にＣＣＤ方式のカラー画像入力装置についても多
くの構成が提案されているが（たとえば特開平７−７４
８９９号参照）、その基本的な原理を図８により説明す
る。On the other hand, many structures have been proposed for a device using a CCD package, especially for a CCD type color image input device (for example, Japanese Patent Laid-Open No. 7-74).
No. 899), and its basic principle will be described with reference to FIG.
【０００８】同図のカラー画像入力装置１０によれば、
回路基板１１上にＣＣＤパッケージ１２を配置し、この
ＣＣＤパッケージ１２内にＣＣＤチップ１３を設けて、
封止ガラス１４でもってＣＣＤチップ１３を封止してい
る。１５は原稿、１６は光学レンズである。According to the color image input device 10 shown in FIG.
The CCD package 12 is arranged on the circuit board 11, and the CCD chip 13 is provided in the CCD package 12.
The CCD chip 13 is sealed with the sealing glass 14. Reference numeral 15 is an original, and 16 is an optical lens.
【０００９】また、１７は赤外カットフィルタであっ
て、輝度が高く、可視光領域４００〜７００ｎｍにて光
強度Ｉが連続的であるような、発光波長分布のキセノン
ランプ（アーク光源）を用いて、高速および高密度の読
み取るができるようにしているが、その反面、赤外域に
強い輝線スペクトルがあるために、図９に示すような赤
外カットフィルタ１７を配することで、その輝線スペク
トルを除くようにしている。Reference numeral 17 designates an infrared cut filter, which uses a xenon lamp (arc light source) having a light emission wavelength distribution such that the luminance is high and the light intensity I is continuous in the visible light region of 400 to 700 nm. Therefore, it is possible to read at high speed and high density. However, since there is a strong emission line spectrum in the infrared region, by providing an infrared cut filter 17 as shown in FIG. Are excluded.
【００１０】すなわち、赤外カットフィルタ１７を用い
ないで、赤外域成分がＣＣＤチップ１３の受光部に入射
すると、その非受光部に設けられたＦＥＴやトランジス
タ、アナログスイッチ、シフトレジスタにも光照射さ
れ、これらがリークしてＭＴＦが劣化したり、誤動作す
るという問題点があり、さらに受光部においてもＭＴＦ
や色分解が著しく低下するという問題点があった。した
がって図９の赤外カットフィルタ１７を使用すること
で、その赤外域成分を除くようにしているが、同図によ
れば、無アルカリガラス（＃７０５９）などから成る基
板１８の上にＳｉＯ2 膜とＭｇＦ2 膜とが交互に積層さ
れて成る多層膜１９をスパッタリングにより形成した構
成である。That is, without using the infrared cut filter 17, when an infrared component is incident on the light receiving portion of the CCD chip 13, the FET, transistor, analog switch and shift register provided in the non-light receiving portion are also irradiated with light. As a result, there is a problem that these leak and the MTF deteriorates or malfunctions.
There was a problem that color separation was significantly reduced. Therefore, the infrared cut filter 17 of FIG. 9 is used to remove the infrared component, but according to the figure, SiO 2 is deposited on the substrate 18 made of alkali-free glass (# 7059) or the like. This is a structure in which a multilayer film 19 formed by alternately laminating films and MgF 2 films is formed by sputtering.
【００１１】かくして上記カラー画像入力装置１０によ
れば、原稿１５の反射光は光学レンズ１６と赤外カット
フィルタ１７を通して、さらに封止ガラス１４も通して
ＣＣＤチップ１３の受光部に集光するようになってい
る。Thus, according to the color image input device 10, the reflected light of the original 15 is condensed on the light receiving portion of the CCD chip 13 through the optical lens 16 and the infrared cut filter 17, and further through the sealing glass 14. It has become.
【００１２】[0012]
【発明が解決しようとする課題】しかしながら、上記構
成のカラー画像入力装置１０においては、赤外カットフ
ィルタ１７の基板１８の表面には光の波長λに対してλ
／２０程度となるような高い面精度が要求され、その面
精度よりも劣化すると赤外カットフィルタ１７自体にレ
ンズ効果が生じて、像に歪みができるという問題点があ
る。However, in the color image input device 10 having the above structure, the surface of the substrate 18 of the infrared cut filter 17 has a wavelength λ with respect to the wavelength λ of light.
A high surface accuracy of about / 20 is required, and if the surface accuracy is deteriorated, the infrared cut filter 17 itself has a lens effect, which causes a problem that an image is distorted.
【００１３】また、赤外カットフィルタ１７の多層膜１
９をスパッタリングにより形成することから、必然的に
コスト増をまねいている。したがって、低コスト化をね
らって基板１８の面積を狭くすると、これに伴って上記
のレンズ効果が増大傾向になって、迷光や像歪みが生じ
るという問題点がある。The multilayer film 1 of the infrared cut filter 17 is also provided.
Since 9 is formed by sputtering, the cost is inevitably increased. Therefore, when the area of the substrate 18 is narrowed for the purpose of cost reduction, there is a problem that the above-mentioned lens effect tends to increase accordingly and stray light or image distortion occurs.
【００１４】さらに光学レンズ１６に付着した埃や塵な
どによって色ムラが生じたり、赤外カットフィルタ１７
とＣＣＤチップ１３との間隔が大きくなるので、赤外カ
ットフィルタ１７に起因して複屈折や異常分散が生じた
り、封止ガラス１４によって色ムラや迷光が発生すると
いう問題点もある。Furthermore, color unevenness may occur due to dust or dirt adhering to the optical lens 16, and the infrared cut filter 17 may be used.
Since the distance between the CCD chip 13 and the CCD chip 13 becomes large, there are problems that the infrared cut filter 17 causes birefringence and abnormal dispersion, and that the sealing glass 14 causes color unevenness and stray light.
【００１５】また、本発明者が提案したＣＣＤパッケー
ジを使用しないＣＣＤ方式デバイス（図７の光量検出部
材１）をカラー画像入力装置として用いる場合、前記赤
外カットフィルタを密閉空間５に設けようとして、ＣＣ
Ｄ６上に配すると、赤外カットフィルタ自体の基板ガラ
スのチッピングゴミに起因して、読み取りエラーが発生
するという問題点がある。その上、ＣＣＤ６の直上に赤
外カットフィルタを配すると、結像位置に近いために、
像歪みが生じやすくなるという問題点もある。Further, when the CCD type device (the light amount detecting member 1 in FIG. 7) which does not use the CCD package proposed by the present inventor is used as a color image input device, the infrared cut filter is provided in the closed space 5. , CC
When it is arranged on D6, there is a problem that a reading error occurs due to chipping dust on the substrate glass of the infrared cut filter itself. In addition, if an infrared cut filter is arranged directly above the CCD 6, it is close to the image forming position.
There is also a problem that image distortion easily occurs.
【００１６】したがって、本発明の目的は迷光や像歪み
が生じないカラー用の光量検出部材を提供することにあ
る。Therefore, an object of the present invention is to provide a light quantity detecting member for color which does not cause stray light or image distortion.
【００１７】また、本発明の他の目的は光学レンズやＣ
ＣＤからなる光量検出部材を市場ルートにのるような一
個の部品となして、しかも、これらの光学調整をあらか
じめ完了した光量検出部材を提供することにある。Another object of the present invention is to provide an optical lens and C
It is an object of the present invention to provide a light amount detecting member made of a CD as a single component that fits on the market route, and which has already been optically adjusted in advance.
【００１８】本発明のさらに他の目的は、簡単かつ容易
な作業によって光学調整および寸法設定をおこない、し
かも、光学特性を高めた高性能かつ低コストのカラー用
画像入力装置を提供することにある。Still another object of the present invention is to provide a high-performance and low-cost color image input device which performs optical adjustment and size setting by a simple and easy operation and has improved optical characteristics. .
【００１９】[0019]
【課題を解決するための手段】本発明の光量検出部材
は、光学レンズと、光学レンズを固定するレンズ固定用
筐体と、受光部を露出した状態のカラー用ＣＣＤと、カ
ラー用ＣＣＤを搭載する回路基板とから成るとともに、
上記カラー用ＣＣＤの受光部上に赤外域の光を吸収する
シロキサンポリマー乃至シリカのポリマー樹脂を被覆
し、上記光学レンズとレンズ固定用筐体と回路基板とに
より密閉空間を形成し、密閉空間を上記光学レンズを通
して受光部に結像せしめるように寸法設定したことを特
徴とする。A light amount detecting member of the present invention includes an optical lens, a lens fixing case for fixing the optical lens, a color CCD with a light receiving portion exposed, and a color CCD. And a circuit board that
The light receiving portion of the color CCD is coated with a siloxane polymer or silica polymer resin that absorbs infrared light, and a sealed space is formed by the optical lens, the lens fixing housing, and the circuit board, and the sealed space is formed. It is characterized in that dimensions are set so that an image is formed on the light receiving portion through the optical lens.
【００２０】また、本発明の画像入力装置は、原稿を搭
載するための透明基板を配設してなる筐体に、アーク放
電する光源およびミラーならびに上記本発明の光量検出
部材が配されており、光源により透明基板を通して原稿
を光照射し、その反射光をミラーによって反射させて上
記光量検出部材に入射せしめたことを特徴とする。Further, in the image input apparatus of the present invention, a light source and a mirror for arc discharge and the light amount detecting member of the present invention are arranged in a casing provided with a transparent substrate for mounting a document. The original is illuminated by a light source through a transparent substrate, and the reflected light is reflected by a mirror and made incident on the light amount detecting member.
【００２１】[0021]
【発明の実施の形態】光量検出部材 図１は本発明の光量検出部材２０の断面図であり、図２
は受光部を露出した状態のＣＣＤの平面図であり、図３
はＣＣＤの受光部の断面図である。また、図４は光量検
出部材２０を用いた場合の光学系の図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Light amount detecting member FIG. 1 is a sectional view of a light amount detecting member 20 of the present invention.
3 is a plan view of the CCD with the light receiving portion exposed, and FIG.
FIG. 4 is a sectional view of a light receiving portion of a CCD. Further, FIG. 4 is a diagram of an optical system when the light amount detection member 20 is used.
【００２２】図１の光量検出部材２０によれば、２１は
ガラスフィラー入りのＡＢＳアロイ、ＰＰＳ、ＰＰＥ、
ポリーボネートからなるおおむね円錐形状のレンズ固定
用筐体であり、その円筒体内部に３組の光学レンズ２２
（Ｌ１、Ｌ２、Ｌ３）を固定している。光学レンズＬ１
は色収差補正レンズ、光学レンズＬ２は結像レンズ、光
学レンズＬ３はディストーション補正レンズである。そ
して、光学レンズＬ３と対向する部位に厚み８ｍｍの回
路基板２３を固定し、これによって光学レンズＬ３と筐
体２１と回路基板２３とにより密閉空間２４を形成し、
さらに回路基板２３の上に受光部を露出した状態（ベア
チップ状）のＣＣＤ２５を固定し、その各電極をボンデ
ィングワイヤーでもって回路基板２３へ導通させてい
る。また、２６は回路基板２３に対するアルミニウム板
からなる補強板、２７は回路基板２３と補強板２６とを
筐体２１に固定するためのネジ、２８はコネクタであ
る。そして、ＣＣＤ２５の受光部上に赤外域の光を吸収
するシロキサンポリマー乃至シリカのポリマー樹脂の被
覆膜２９を設けている。このポリマー樹脂はシロキサン
ポリマーもしくはシリカの間で、硬化重合度が異なるだ
けで基本分子構造は同じである。According to the light quantity detecting member 20 of FIG. 1, 21 is a glass filler-containing ABS alloy, PPS, PPE,
This is a generally conical lens-fixing housing made of polybonate, and three sets of optical lenses 22 are provided inside the cylindrical body.
(L1, L2, L3) are fixed. Optical lens L1
Is a chromatic aberration correction lens, the optical lens L2 is an imaging lens, and the optical lens L3 is a distortion correction lens. Then, a circuit board 23 having a thickness of 8 mm is fixed to a portion facing the optical lens L3, whereby a closed space 24 is formed by the optical lens L3, the housing 21, and the circuit board 23.
Further, the CCD 25 in a state where the light receiving portion is exposed (bare chip shape) is fixed on the circuit board 23, and each electrode thereof is electrically connected to the circuit board 23 by a bonding wire. Further, 26 is a reinforcing plate made of an aluminum plate for the circuit board 23, 27 is a screw for fixing the circuit board 23 and the reinforcing plate 26 to the housing 21, and 28 is a connector. Then, a coating film 29 of a siloxane polymer or silica polymer resin that absorbs light in the infrared region is provided on the light receiving portion of the CCD 25. This polymer resin has the same basic molecular structure between siloxane polymers and silica, except for the degree of curing polymerization.
【００２３】図２のＣＣＤ２５において、３０は多数個
の受光素子（ＣＣＤベアチップ）が配列された受光部、
３１は各受光素子と金線でもってワイヤボンデイングす
るためのボンデイングパッド、３２は位置決め用穴、３
３は位置決め用マーカ、３４は１０ピンコネクタ、３５
はノイズ対策用タンタルである。In the CCD 25 of FIG. 2, reference numeral 30 denotes a light receiving portion in which a large number of light receiving elements (CCD bare chips) are arranged,
31 is a bonding pad for wire bonding with each light receiving element and a gold wire, 32 is a positioning hole, 3
3 is a positioning marker, 34 is a 10-pin connector, 35
Is tantalum for noise suppression.
【００２４】また図３のＣＣＤ２５は、オンチップカラ
ーフィルター付の３ラインタイプであって、赤（Ｒ）、
緑（Ｇ）、青（Ｂ）の各受光素子が３列となるように配
列された断面を示している。３６は光電変換部、３７は
転送ゲートである。The CCD 25 shown in FIG. 3 is a three-line type with an on-chip color filter, which is red (R),
A cross section in which the green (G) and blue (B) light receiving elements are arranged in three rows is shown. Reference numeral 36 is a photoelectric conversion unit, and 37 is a transfer gate.
【００２５】次に上記光量検出部材２０を（１）〜
（５）の工程順で製作する方法を述べる。 （１）回路基板２３には一方もしくは両方の主面に金メ
ッキをしたものを使用し、その基板厚みが２ｍｍ以下の
場合には補強板２６を使用する。防塵対策上、スルーホ
ールはレジストなどで密閉する。もし、補強板２６を使
用した場合には、それにノイズ対策上、アースするのが
よい。Next, the light amount detecting member 20 is set to (1)-
A method of manufacturing in the process order of (5) will be described. (1) As the circuit board 23, one or both main surfaces of which are gold-plated is used, and when the board thickness is 2 mm or less, the reinforcing plate 26 is used. To prevent dust, the through holes should be sealed with resist. If the reinforcing plate 26 is used, it is preferable to ground it to prevent noise.
【００２６】（２）次いで回路基板２３に設けた位置決
め用マーカ３３でもって、あるいは位置決め用穴３２で
もって位置を自動認識しながら、ＣＣＤ２５を回路基板
２３上に配置する。本発明者の実験によれば、認識誤差
は±５μｍ以下、実装誤差は±５μｍ以下であった。(2) Next, the CCD 25 is arranged on the circuit board 23 while automatically recognizing the position by the positioning marker 33 provided on the circuit board 23 or the positioning hole 32. According to the experiments by the inventor, the recognition error was ± 5 μm or less and the mounting error was ± 5 μm or less.
【００２７】（３）ＣＣＤ２５を回路基板２３上に実装
する。この実装にはＩＣ用の接着材を用いて、それを介
して固定する。本発明者の実験によれば、接着材硬化時
のＣＣＤ２５の移動による実装ずれは±２μｍ以下にで
きた。(3) The CCD 25 is mounted on the circuit board 23. For this mounting, an adhesive for IC is used and fixed through it. According to the experiments by the inventor, the mounting deviation due to the movement of the CCD 25 when the adhesive is cured could be ± 2 μm or less.
【００２８】（４）ＣＣＤ２５上に下記■）〜■）の順
で赤外域の光を吸収するシロキサンポリマー乃至シリカ
のポリマー樹脂の被覆膜２９を１００μｍ以下の厚み
で、さらに２〜５μｍの厚みにまで塗布形成する。(4) A coating film 29 of a siloxane polymer or silica polymer resin that absorbs light in the infrared region in the order of the following (1) to (3) is formed on the CCD 25 in a thickness of 100 μm or less, and a thickness of 2 to 5 μm. Apply to form.
【００２９】■）化１で示すシロキサンポリマー主剤の
溶液に溶媒であるｎヘプタンを５０〜８０％の比率にな
るように混合し、さらにマイクロクラスター状のＮｉＳ
Ｏ4 もしくはＣｕＳＯ4 の錯塩（そのほか同様の鉄族錯
塩や有機塩でもよい）の固溶体を０．１〜１０％の割合
で混合する。(4) A solvent of n-heptane as a solvent is mixed with a solution of the siloxane polymer main agent shown in Chemical formula 1 in a proportion of 50 to 80%, and further, microcluster-shaped NiS.
A solid solution of a complex salt of O 4 or CuSO 4 (other similar iron group complex salt or organic salt may be used) is mixed at a ratio of 0.1 to 10%.
【００３０】[0030]
【化１】 Embedded image
【００３１】■）上記混合溶液をスピンナーを用いて、
１０００ｒｐｍの回転速度で１５秒間、次いで４００ｒ
ｐｍの回転速度で６０秒間塗布し、これによって膜厚が
５μｍ±０．５μｍの塗布膜が形成される。■) Using a spinner, the above mixed solution
Rotation speed of 1000 rpm for 15 seconds, then 400 r
Application is performed for 60 seconds at a rotation speed of pm, whereby a coating film having a film thickness of 5 μm ± 0.5 μm is formed.
【００３２】■）上記塗布膜を２００℃の温度で３０分
間、次いで３００℃の温度で３０分間、いずれも窒素ガ
スの雰囲気中で加熱処理し、これによって化２にて示す
化学構成のシリカからなる被覆膜２９を形成した。な
お、被覆膜２９には上記マイクロクラスター状のＮｉＳ
Ｏ4 もしくはＣｕＳＯ4 の錯塩が、そのままで存在して
いる。(3) The coating film was heat-treated at a temperature of 200 ° C. for 30 minutes and then at a temperature of 300 ° C. for 30 minutes in an atmosphere of nitrogen gas. The coating film 29 is formed. The coating film 29 has the above-mentioned microcluster-shaped NiS.
The complex salt of O 4 or CuSO 4 exists as it is.
【００３３】[0033]
【化２】 Embedded image
【００３４】上記被覆膜２９に存在するＮｉＳＯ4 やＣ
ｕＳＯ4 の錯塩は、赤外域の光の振動をフォノンに変換
する好適な分子軌道（振動モード）を備えているため
に、その光エネルギーが分子振動エネルギーに変換さ
れ、そして、拡散されることにより赤外域の光が吸収さ
れる。NiSO 4 and C existing in the coating film 29
Since the complex salt of uSO 4 has a suitable molecular orbital (vibration mode) for converting the vibration of light in the infrared region into a phonon, its light energy is converted into molecular vibrational energy and then diffused. Infrared light is absorbed.
【００３５】（５）精密射出成形により作製されたポリ
カーボネート、ザイロンまたは金属などからなる筐体２
１には、その成形に当たって、各光学レンズＬ１、Ｌ
２、Ｌ３を配設する位置をすでに決定することができる
ので、このような筐体２１にプラスチックの光学レンズ
２２を超音波溶着する。ただし、ガラスの光学レンズ２
２を使用する場合には圧入して固定する。(5) Housing 2 made of precision injection molding and made of polycarbonate, zylon, metal or the like
1 is the optical lenses L1 and L
Since the positions where 2 and L3 are arranged can be already determined, the plastic optical lens 22 is ultrasonically welded to such a casing 21. However, glass optical lens 2
If 2 is used, press fit and fix.
【００３６】かくして上記光量検出部材２０において
は、光学レンズＬ３と筐体１４と回路基板２３とにより
密閉空間２４を形成し、しかも、図４の光学系（Ａ４サ
イズ、６００ＤＰＩカラースキャナ）にしたがって筐体
２１内に各光学レンズＬ１、Ｌ２、Ｌ３を所定の位置に
配し、それら密閉空間２４と各光学レンズＬ１、Ｌ２、
Ｌ３の間隔を光学レンズ２２を通して受光部３０に集光
せしめるように寸法設定した構成にしているので、受光
部３０が塵や埃などにより汚染されなくなり、さらに受
光部３０と光学レンズ２２との間を筐体２１でもって光
学調整をおこなった一個の製品化した部品となる。しか
も、ＣＣＤパッケージを不要とすることで、その分、寸
法や空間が狭くなり、これによって小型化および低コス
ト化が達成できる。Thus, in the light quantity detecting member 20, the optical lens L3, the housing 14 and the circuit board 23 form a closed space 24, and further, the housing is made in accordance with the optical system (A4 size, 600 DPI color scanner) of FIG. The optical lenses L1, L2, L3 are arranged at predetermined positions in the body 21, and the closed space 24 and the optical lenses L1, L2,
Since the distance L3 is set so that the light can be condensed on the light receiving unit 30 through the optical lens 22, the light receiving unit 30 is prevented from being contaminated by dust and the like, and the space between the light receiving unit 30 and the optical lens 22 is further reduced. Is a single commercialized component that is optically adjusted by the housing 21. Moreover, since the CCD package is not required, the size and the space are narrowed accordingly, so that the miniaturization and the cost reduction can be achieved.
【００３７】また光量検出部材２０においては、前記の
赤外カットフィルタ１７を使用しないので、レンズ効果
が生じなく、これによって迷光が生じなくなり、像に歪
みができなきなった。その上、赤外カットフィルタ１７
の多層膜１９をスパッタリングにより形成することに代
えて、塗布と加熱に組合せによって、コストが低減でき
た。Further, since the infrared cut filter 17 is not used in the light amount detecting member 20, the lens effect does not occur, so that stray light does not occur and the image cannot be distorted. In addition, the infrared cut filter 17
The cost can be reduced by combining coating and heating instead of forming the multilayer film 19 of No. 1 by sputtering.
【００３８】さらにまた、本実施形態においては、塗布
膜を５μｍ±０．５μｍの変動幅でもって設けているの
で、曲率半径が大変に大きくなり、これによってレンズ
効果が生じなくなり、その結果、迷光が生じなくなり、
像に歪みができなきなった。Furthermore, in the present embodiment, since the coating film is provided with a fluctuation width of 5 μm ± 0.5 μm, the radius of curvature becomes very large, so that the lens effect does not occur, resulting in stray light. Will not occur,
The image is no longer distorted.
【００３９】画像入力装置 図５は図４の光学系にもとづいた本発明画像入力装置と
しての原稿読み取り装置の断面図である。同図の原稿読
み取り装置３８によれば、原稿１５を搭載する透明基板
３９を配設してなる筐体４０の内部に、アーク放電する
光源である、たとえばキセノンランプ（アーク光源）か
らなる光源４１とミラー４２、４３とを設け、外側に光
量検出部材２０を配して、光源４１により透明基板３９
を通して原稿１５を光照射し、その反射光路をミラー４
２、４３によって屈折して光量検出部材２０に入射せし
めた構成である。 Image Input Device FIG. 5 is a sectional view of a document reading device as an image input device of the present invention based on the optical system of FIG. According to the document reading device 38 shown in the figure, a light source 41, which is a light source for arc discharge, for example, a xenon lamp (arc light source), is provided inside a casing 40 in which a transparent substrate 39 on which the document 15 is mounted is arranged. And the mirrors 42 and 43 are provided, the light amount detection member 20 is arranged on the outside, and the transparent substrate 39 is provided by the light source 41.
The original 15 is irradiated with light through it, and the reflected light path is reflected by the mirror 4.
This is a configuration in which the light is refracted by the light rays 2 and 43 and is made incident on the light amount detection member 20.
【００４０】上記原稿読み取り装置３８においては、光
学調整済の光量検出部材２０に適合するように光源４１
とミラー４２、４３を光学調整および寸法設定すればよ
く、その結果、簡単かつ容易な作業によって光学調整を
おこなうことができた。In the document reading device 38, the light source 41 is adapted so as to fit the optically adjusted light amount detecting member 20.
The optical adjustment and the size setting of the mirrors 42 and 43 may be performed. As a result, the optical adjustment can be performed by a simple and easy operation.
【００４１】[0041]
（例１）光量検出部材２０を前述した通りに製作したと
ころ、ＣＣＤ２５の画素間ピッチが１４μｍであり、受
光素子（画素）が２０４８個であって、Ｂ４サイズの原
稿を読み取る場合に（受光部３０の長尺寸法は１４μｍ
×２０４８＝２８．６ｍｍとなる）、九州松下電器
（株）製のダイマウンタ（商品Ｎｏ．Ｄ／Ｍ−５２０
０）を用いて認識実装したところ、図２のＣＣＤ２５に
示すような認識部位Ｚに対する方向Ｘ、方向Ｙおよび角
度θのそれぞれの誤差ΔＺ、ΔＸ、ΔＹ、Δθは下記の
とおりであった。(Example 1) When the light amount detection member 20 is manufactured as described above, the pixel pitch of the CCD 25 is 14 μm, the number of light receiving elements (pixels) is 2048, and when reading a B4 size document (light receiving unit The long dimension of 30 is 14 μm
× 2048 = 28.6 mm), a die mounter (product No. D / M-520) manufactured by Kyushu Matsushita Electric Co., Ltd.
0) was used for recognition and mounting, the respective errors ΔZ, ΔX, ΔY, and Δθ of the direction X, the direction Y, and the angle θ with respect to the recognition site Z as shown in the CCD 25 of FIG. 2 were as follows.
【００４２】ΔＸ＝５μｍ ΔＹ＝５μｍ ΔＺ＝１０μｍ Δθ＝ｔａｎ-1（ΔＹ／Ｘ）＝０．００５／２８．６＝０．０１００° ちなみに、ＣＣＤパッケージ内にＣＣＤチップを設け
て、封止ガラスでもってＣＣＤチップを封止したものを
使用する従来のＣＣＤ方式デバイス（原稿読み取り装
置）においては、ΔＸ＝８００μｍ、ΔＹ＝５００μ
ｍ、ΔＺ＝３００μｍ、Δθ＝ｔａｎ-1（ΔＹ／Ｘ）＝
０．５／２８．６＝１．００１５７°であった。ΔX = 5 μm ΔY = 5 μm ΔZ = 10 μm Δθ = tan −1 (ΔY / X) = 0.005 / 28.6 = 0.0100 ° By the way, a CCD chip is provided in the CCD package and the sealing glass is used. Therefore, in the conventional CCD type device (original reading device) using the one in which the CCD chip is sealed, ΔX = 800 μm, ΔY = 500 μ
m, ΔZ = 300 μm, Δθ = tan −1 (ΔY / X) =
It was 0.5 / 28.6 = 1.00157 °.
【００４３】（例２）前記原稿読み取り装置３８につい
て、４ｌｐ／ｍｍの白黒原稿をスキャンした際のＭＴＦ
は、読み取り中心部で最大８０％となり、読み取り周辺
部で最小５０％となった。さらに焦点深度１０ｍｍ、読
み取り信号の暗出力のピーク差は３ｍＶ、１０２６階
調、０．１ｍｓｅｃ／ｌｉｎｅという優れた特性が得ら
れた。そして、この原稿読み取り装置３８の組立スピー
ドも、従来のＣＣＤ方式デバイス（原稿読み取り装置）
と比べて約２／３程度にまで減少することができた。さ
らにまた、光量検出部材２０として、Ａ４タイプの６０
０ＤＰＩフルカラーのスキャナー用のもの、あるいはＡ
３タイプの４００ＤＰＩデジタルコピー機用のものなど
も、同様に優れた評価結果が得られた。(Example 2) MTF when scanning a 4 lp / mm black and white original with the original reading device 38
Was 80% at the center of reading and 50% at the periphery of reading. Further, excellent characteristics were obtained in which the depth of focus was 10 mm, the peak difference in dark output of the read signal was 3 mV, 1026 gradations, and 0.1 msec / line. The assembling speed of the document reading device 38 is also the same as that of a conventional CCD device (document reading device).
It was possible to reduce it to about 2/3. Furthermore, as the light quantity detection member 20, an A4 type 60
For 0DPI full color scanner or A
The same excellent evaluation results were obtained for three types of 400 DPI digital copiers and the like.
【００４４】（例３）光量検出部材２０に設けた被覆膜
２９について、前記キセノンランプ（アーク光源）から
なる光源４１に対する分光強度分布Ｉ（λ）を測定した
ところ、図６に示すような結果が得られた。(Example 3) With respect to the coating film 29 provided on the light amount detecting member 20, the spectral intensity distribution I (λ) with respect to the light source 41 composed of the xenon lamp (arc light source) was measured, and as shown in FIG. Results were obtained.
【００４５】Ａは光源４１の発光強度分布Ｉ（λ）であ
り、Ｂは被覆膜２９の通過後の発光強度分布Ｉ（λ）で
ある。なお、可視光強度でもって１００％をノーマライ
ズして作図している。A is the emission intensity distribution I (λ) of the light source 41, and B is the emission intensity distribution I (λ) after passing through the coating film 29. It should be noted that 100% is normalized by the visible light intensity for drawing.
【００４６】同図より明らかなとおり、被覆膜２９の通
過によって、輝線スペクトル線が除去されている。そし
て、可視光領域でも約５％の強度低下が認められるが、
均一に吸収されているので、優れた分光強度特性であ
る。As is clear from the figure, the emission line spectrum line is removed by passing through the coating film 29. And, a decrease in strength of about 5% is observed even in the visible light region,
Since it is absorbed uniformly, it has excellent spectral intensity characteristics.
【００４７】（例４）光量検出部材２０について、特性
を測定したところ、６００ｄｐｉにおけるＭＴＦ（解像
力）：６５％、ＶWAVE（白出力平均）：１．５Ｖ、ディ
ストーション：−０．５％であって、しかも、色分解／
色再現性および信頼性は極めて良好であった。(Example 4) When the characteristics of the light amount detection member 20 were measured, MTF (resolution) at 600 dpi: 65%, V WAVE (average white output): 1.5 V, distortion: -0.5%. Moreover, color separation /
Color reproducibility and reliability were extremely good.
【００４８】これに対して、図７の光量検出部材１の密
閉空間５に赤外カットフィルタを設けた構成において
は、画像分解能であるＭＴＦ(Modulation Transfer Fun
ction)：５５％、ＶWAVE（白出力平均）：１．３Ｖ、デ
ィストーション：−０．８％であって、しかも、色分解
／色再現性および信頼性ともに劣化していた。On the other hand, in the structure in which the infrared cut filter is provided in the closed space 5 of the light amount detecting member 1 in FIG. 7, the MTF (Modulation Transfer Fun) which is the image resolution.
ction): 55%, V WAVE (white output average): 1.3 V, distortion: -0.8%, and the color separation / color reproducibility and reliability were deteriorated.
【００４９】上記各種測定や評価については、ＭＴＦは
ＵＳＡＦテストターゲットを使用し、ＲＧＢ各波長にて
実測しており、ＶWAVEは０．Ｄ値が０．３以上の白色原
稿を読み取った場合の出力平均値であり、さらにディス
トーションは２４（ｌｐ／ｍｍ）の印字のモアレ縞より
算出して求めた。また、色分解／色再現性は画像電子学
会Ｎｏ．１１．２１を使用して、相対値比較し、そし
て、信頼性はＴＣＴ、ＴＨＢなどの各種加速試験を実施
して評価した。Regarding the above-mentioned various measurements and evaluations, the MTF is actually measured at each wavelength of RGB using the USAF test target, and V WAVE is 0. It is an average output value when a white document having a D value of 0.3 or more is read, and the distortion is calculated and calculated from the moire fringes of 24 (lp / mm) printing. The color separation / color reproducibility is No. Relative values were compared using 11.21, and reliability was evaluated by performing various accelerated tests such as TCT and THB.
【００５０】なお、本発明は上記実施例に限定されるも
のではなく、本発明の要旨を逸脱しない範囲において、
種々の変更、改良などをしても何ら差し支えない。The present invention is not limited to the above-mentioned embodiments, and within the scope not departing from the gist of the present invention,
There are no problems even if various changes or improvements are made.
【００５１】[0051]
【発明の効果】以上の通り、本発明の光量検出部材によ
れば、赤外カットフィルタを使用しないので、レンズ効
果が生じなく、これによって迷光が生じなくなり、像に
歪みができなきなく、低コストであるとともに、高信頼
性かつ高品質の光量検出部材が提供できた。さらにカラ
ー用ＣＣＤ上にＳｉ−ＳｉＯ2 の多層膜を被覆した場合
であれば、ＳｉＯ2 が３．４２という高屈折率であるこ
とから、反射防止層としての効果もある。As described above, according to the light amount detecting member of the present invention, since the infrared cut filter is not used, the lens effect does not occur, the stray light does not occur by this, the image is not distorted, and low. It is possible to provide a high-reliability and high-quality light amount detection member as well as cost. Further, when the color CCD is coated with a multi-layered film of Si—SiO 2 , since SiO 2 has a high refractive index of 3.42, it also has an effect as an antireflection layer.
【００５２】また、本発明の光量検出部材によれば、Ｃ
ＣＤパッケージの封止用光学ガラスを不要としても、Ｃ
ＣＤの受光部が塵や埃などにより汚染されないようにし
て、さらにＣＣＤの受光部と光学レンズとの間を筐体で
もって光学調整をおこなう構成にしており、これによっ
て一個の製品化した電子部品となり、その結果、本発明
の汎用性のある光量検出部材に対応して、各種形状の画
像入力装置に使用することができる。According to the light amount detecting member of the present invention, C
Even if the optical glass for sealing the CD package is unnecessary, C
The light receiving section of the CD is prevented from being contaminated by dust and the like, and the optical adjustment is performed by the housing between the light receiving section of the CCD and the optical lens, whereby a single electronic component is commercialized. As a result, it can be used for image input devices of various shapes corresponding to the versatile light amount detection member of the present invention.
【００５３】本発明の画像入力装置においては、本発明
のすでに光学調整した光量検出部材を配した構成であっ
て、従来のように複雑な調整機構ならびに多数個の調整
ネジおよび治具を必要とするものでなくなり、さらに熟
練した技術も要しなくなり、その結果、簡単かつ容易な
作業によって光学調整をおこなうことができ、低コスト
の画像入力装置が提供できる。The image input device of the present invention has a structure in which the light amount detecting member of the present invention which has already been optically adjusted is arranged, and requires a complicated adjusting mechanism and a large number of adjusting screws and jigs as in the conventional case. In addition, it is possible to perform optical adjustment by simple and easy work, and to provide a low-cost image input device.
【００５４】さらにまた、本発明においては、ＣＣＤパ
ッケージ封止用ガラスを使用しなくなるので、光学特性
を高めた高性能かつ高信頼性の光量検出部材および画像
入力装置が提供できる。その上、携帯端末用デバイスな
どの市場の小型化ニーズに応じて、さらに小型化を達成
した画像入力装置が提供できる。Furthermore, in the present invention, since the glass for sealing the CCD package is not used, a high-performance and highly reliable light amount detecting member and an image input device having improved optical characteristics can be provided. Moreover, it is possible to provide an image input device that has been further downsized in accordance with the market needs for downsizing such as devices for mobile terminals.
【００５５】したがって、本発明の画像入力装置を用い
たコンピュータ、カラースキャナ、バーコードリーダ、
ＯＣＲ用スキャナ、ファクシミリ、携帯端末、デジタル
コピー機、製版機、ならびにエリアＣＣＤを用いた放送
用テレビカメラ、８ｍｍビデオ、電子スチルカメラなど
では、低コスト、小型化および高い信頼性という利点が
得られる。Therefore, a computer, a color scanner, a bar code reader, which uses the image input device of the present invention,
OCR scanners, facsimiles, mobile terminals, digital copiers, plate-making machines, and broadcast television cameras using area CCDs, 8mm video, electronic still cameras, etc. offer the advantages of low cost, small size, and high reliability. .
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の光量検出部材の断面図である。FIG. 1 is a cross-sectional view of a light amount detection member of the present invention.
【図２】ＣＣＤの平面図である。FIG. 2 is a plan view of a CCD.
【図３】ＣＣＤの断面図である。FIG. 3 is a sectional view of a CCD.
【図４】本発明の光量検出部材を使用した場合の光学系
をあらわす概略図である。FIG. 4 is a schematic diagram showing an optical system when the light amount detecting member of the present invention is used.
【図５】本発明の画像入力装置の断面図である。FIG. 5 is a cross-sectional view of the image input device of the present invention.
【図６】ＣＣＤ上に塗布形成した被覆膜の光透過率の分
布図である。FIG. 6 is a distribution diagram of light transmittance of a coating film formed by coating on a CCD.
【図７】すでに提案された光量検出部材の断面図であ
る。FIG. 7 is a cross-sectional view of a light amount detection member already proposed.
【図８】従来の原稿読み取り装置（画像入力装置）の光
学系をあらわす概略図である。FIG. 8 is a schematic diagram showing an optical system of a conventional document reading device (image input device).
【図９】赤外カットフィルタの概略構成を示す断面図で
ある。FIG. 9 is a cross-sectional view showing a schematic configuration of an infrared cut filter.
１５ 原稿 １７ 赤外カットフィルタ ２０ 光量検出部材 ２１ レンズ固定用筐体 ２２ 光学レンズ ２３ 回路基板 ２４ 密閉空間 ２５ ＣＣＤ ２９ 被覆膜 ３８ 原稿読み取り装置 ３９ 透明基板 ４０ 筐体 ４１ 光源 ４２、４３ ミラー 15 Document 17 Infrared Cut Filter 20 Light Detecting Member 21 Lens Fixing Housing 22 Optical Lens 23 Circuit Board 24 Sealed Space 25 CCD 29 Covering Film 38 Original Reading Device 39 Transparent Substrate 40 Housing 41 Light Source 42, 43 Mirror
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｎ 5/335 Ｈ０１Ｌ 27/14 Ｄ Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI Technical display location H04N 5/335 H01L 27/14 D
Claims (2)
レンズ固定用筐体と、受光部を露出した状態のカラー用
ＣＣＤと、該カラー用ＣＣＤを搭載する回路基板とから
成るとともに、上記カラー用ＣＣＤの受光部上に赤外域
の光を吸収するシロキサンポリマー乃至シリカのポリマ
ー樹脂を被覆し、上記光学レンズとレンズ固定用筐体と
回路基板とにより密閉空間を形成し、該密閉空間を上記
光学レンズを通して受光部に結像せしめるように寸法設
定したことを特徴とする光量検出部材。1. An optical lens, a lens fixing housing for fixing the optical lens, a color CCD with a light receiving portion exposed, and a circuit board on which the color CCD is mounted. The light receiving portion of the CCD for use is coated with a siloxane polymer or silica polymer resin that absorbs light in the infrared region, and a sealed space is formed by the optical lens, the lens fixing casing, and the circuit board, and the sealed space is defined as above. A light amount detecting member characterized in that dimensions are set so that an image is formed on a light receiving portion through an optical lens.
てなる筐体に、アーク放電する光源およびミラーならび
に請求項１の光量検出部材が配され、光源により透明基
板を通して原稿を光照射し、その反射光をミラーによっ
て反射させて上記光量検出部材に入射せしめたことを特
徴とする画像入力装置。2. A light source and a mirror for arc discharge and a light amount detecting member according to claim 1 are arranged in a casing provided with a transparent substrate for mounting an original, and the original is irradiated with light through the transparent substrate by the light source. Then, the reflected light is reflected by a mirror and made incident on the light amount detecting member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7241701A JPH0983736A (en) | 1995-09-20 | 1995-09-20 | Light quantity detection member and image input device having this light quantity detection member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7241701A JPH0983736A (en) | 1995-09-20 | 1995-09-20 | Light quantity detection member and image input device having this light quantity detection member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0983736A true JPH0983736A (en) | 1997-03-28 |
Family
ID=17078251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7241701A Pending JPH0983736A (en) | 1995-09-20 | 1995-09-20 | Light quantity detection member and image input device having this light quantity detection member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0983736A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002015119A1 (en) * | 2000-08-15 | 2002-02-21 | Gavitec Ag | Device comprising a decoding unit for decoding optical codes and use of such a device for reading optical codes, and the use of a color camera for reading optical codes |
| US7030926B2 (en) | 2000-06-22 | 2006-04-18 | Mitsubishi Denki Kabushiki Kaisha | Image pick-up apparatus and portable telephone utilizing the same |
| JP2006216657A (en) * | 2005-02-02 | 2006-08-17 | Fuji Film Microdevices Co Ltd | Solid state imaging device and optical module |
| JP2008245244A (en) * | 2007-02-26 | 2008-10-09 | Sony Corp | Imaging element package, imaging element module, lens barrel, and imaging device |
| JP2010041218A (en) * | 2008-08-01 | 2010-02-18 | Sony Corp | Imaging element unit, imaging element module, lens barrel, and imaging apparatus |
| US8913308B2 (en) | 2012-08-03 | 2014-12-16 | Nec Accesstechnica, Ltd. | Light collecting member, and optical module and image reading device having the light collecting member |
-
1995
- 1995-09-20 JP JP7241701A patent/JPH0983736A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7030926B2 (en) | 2000-06-22 | 2006-04-18 | Mitsubishi Denki Kabushiki Kaisha | Image pick-up apparatus and portable telephone utilizing the same |
| WO2002015119A1 (en) * | 2000-08-15 | 2002-02-21 | Gavitec Ag | Device comprising a decoding unit for decoding optical codes and use of such a device for reading optical codes, and the use of a color camera for reading optical codes |
| JP2006216657A (en) * | 2005-02-02 | 2006-08-17 | Fuji Film Microdevices Co Ltd | Solid state imaging device and optical module |
| JP4503452B2 (en) * | 2005-02-02 | 2010-07-14 | 富士フイルム株式会社 | Method for manufacturing solid-state imaging device |
| JP2008245244A (en) * | 2007-02-26 | 2008-10-09 | Sony Corp | Imaging element package, imaging element module, lens barrel, and imaging device |
| US7860390B2 (en) | 2007-02-26 | 2010-12-28 | Sony Corporation | Imaging element package, imaging element module and lens barrel, and image capturing apparatus |
| JP2010041218A (en) * | 2008-08-01 | 2010-02-18 | Sony Corp | Imaging element unit, imaging element module, lens barrel, and imaging apparatus |
| US8913308B2 (en) | 2012-08-03 | 2014-12-16 | Nec Accesstechnica, Ltd. | Light collecting member, and optical module and image reading device having the light collecting member |
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