JPH05323230A - Image device - Google Patents
Image deviceInfo
- Publication number
- JPH05323230A JPH05323230A JP16041792A JP16041792A JPH05323230A JP H05323230 A JPH05323230 A JP H05323230A JP 16041792 A JP16041792 A JP 16041792A JP 16041792 A JP16041792 A JP 16041792A JP H05323230 A JPH05323230 A JP H05323230A
- Authority
- JP
- Japan
- Prior art keywords
- lens array
- housing
- array
- led
- height
- 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
Landscapes
- Facsimile Heads (AREA)
- Led Device Packages (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の利用分野】この発明は、レンズアレイを用いた
画像装置に関し、特にレンズアレイの反りの矯正に関す
る。この発明の画像装置は、例えばＬＥＤヘッドや液晶
シャッタアレイヘッド、ＣＣＤイメージセンサ等に用い
れば好適なものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image device using a lens array, and more particularly to correcting warp of the lens array. The image device of the present invention is suitable for use in, for example, an LED head, a liquid crystal shutter array head, a CCD image sensor, or the like.
【０００２】[0002]
【従来技術】ＬＥＤヘッドやイメージセンサ等の画像装
置では、ＬＥＤアレイやＣＣＤ素子等の画像素子をレン
ズアレイと組合せ、原稿や感光体等との間で結像させ
る。画像装置の組立上の問題の１つは、レンズアレイの
搭載精度であり、レンズアレイの中心から画像素子まで
の間隔と、レンズアレイの中心から原稿や感光体ドラム
等までの間隔を、共に共役長Ｔｃの１／２に一致させる
必要がある。しかしながらレンズアレイは、ガラスやプ
ラスチック等のレンズを接着剤で結束したものであり、
軟らかく反り易い。このためレンズアレイの両端を正し
く位置決めしても、レンズアレイの中央が反り、焦点性
能が低下する。レンズアレイ中央部での反りは一般に５
０〜１００μｍ程度であり、画像装置の組立誤差への許
容幅の±１００μｍ程度に対して大きな誤差をもたら
す。2. Description of the Related Art In an image device such as an LED head or an image sensor, an image element such as an LED array or a CCD element is combined with a lens array to form an image on a document or a photoconductor. One of the problems in assembling the image device is the mounting accuracy of the lens array, and the distance from the center of the lens array to the image element and the distance from the center of the lens array to the document or the photosensitive drum are both conjugated. It is necessary to match 1/2 of the length Tc. However, the lens array is made by binding lenses such as glass and plastic with an adhesive,
Soft and easily warped. For this reason, even if both ends of the lens array are correctly positioned, the center of the lens array warps and the focusing performance deteriorates. The warp at the center of the lens array is generally 5
It is about 0 to 100 μm, which causes a large error with respect to the allowable range of ± 100 μm for the assembly error of the image device.
【０００３】ここで関連する先行技術を示すと、実開平
１−５７,７６２号公報では、レンズアレイの両端をハ
ウジングのマウントに固定し、位置決めしている。また
特開平２−１０６,３６２号公報では、レンズアレイの
両端にハウジングからピンを突き立て、ピンでレンズア
レイ両端の高さ調整を行っている。さらに特開平３−１
６,７５１号公報では、ガラス容器にレンズアレイを固
定して、ハウジングに組み付けている。実開平１−５
７,７６２号公報や特開平２−１０６,３６２号公報で
は、レンズアレイの両端の高さを位置決めするだけであ
り、レンズアレイの反りを考慮していない。また特開平
３−１６,７５１号公報では、ガラス容器の形状精度が
問題となり、一般にガラス容器では高い形状精度は得ら
れない。As a related prior art, in Japanese Utility Model Laid-Open No. 1-57,762, both ends of a lens array are fixed to a mount of a housing for positioning. Further, in Japanese Patent Application Laid-Open No. 2-106362, pins are made to protrude from the housing at both ends of the lens array, and the height of both ends of the lens array is adjusted by the pins. Further, Japanese Patent Laid-Open No. 3-1
In Japanese Patent No. 6,751, the lens array is fixed to a glass container and assembled in a housing. Actual Kaihei 1-5
In JP-A-7-762 and JP-A-2-106,362, only the heights of both ends of the lens array are positioned, and the warp of the lens array is not considered. Further, in Japanese Patent Application Laid-Open No. 3-16,751, the shape accuracy of the glass container becomes a problem, and generally, the glass container cannot obtain high shape accuracy.
【０００４】これらの先行技術の内で、特に注目されて
きたのは、特開平２−１０６,３６２号公報のように、
ピンでレンズアレイ両端の高さ調整を行うものである。
ピンによる高さ調整では、高さ調整後の画像装置をプリ
ンタ等に組み付け、実際の印画品質から調整の良否を判
断していた。しかしながらこの手法では、ピンによる高
さ調整や、プリンタへの組み付けと取り外しとを繰り返
さねばならず、人手と時間とを必要とする。また印画品
質の良否の判断は、人の直感で行うため、人によって判
定結果がバラつく。さらにピンによる高さ調整、プリン
タへの取付、印画品質の判断との作業は、熟練や注意力
を必要とする。これらはレンズアレイの高さ調整を難し
くし、画像装置のコスト増を招いている。Among these prior arts, what has been particularly noted is, as in Japanese Patent Laid-Open No. 2-106,362,
The height of both ends of the lens array is adjusted with pins.
In height adjustment using a pin, the image device after height adjustment was assembled in a printer or the like, and the quality of the adjustment was judged from the actual print quality. However, in this method, height adjustment by a pin, assembling and dismounting to and from the printer must be repeated, which requires manpower and time. Moreover, since the quality of the print quality is determined by the intuition of a person, the determination result varies depending on the person. Further, height adjustment by pins, attachment to a printer, and judgment of print quality require skill and attention. These make it difficult to adjust the height of the lens array, and increase the cost of the image device.
【０００５】[0005]
【発明の課題】この発明の課題は、レンズアレイを用い
た画像装置の、レンズアレイの反りを矯正し、画像装置
の焦点性能を高めることにある。この発明の他の課題
は、レンズアレイの反りを簡単な手法で矯正し、画像装
置のコスト増を防止することにある。SUMMARY OF THE INVENTION It is an object of the present invention to correct the warp of a lens array of an image device using a lens array and improve the focusing performance of the image device. Another object of the present invention is to correct the warp of the lens array by a simple method and prevent an increase in the cost of the image device.
【０００６】[0006]
【発明の構成】この発明の画像装置は、ハウジングに、
画像素子を搭載した基板と、レンズアレイとを取り付け
た画像装置において、前記ハウジングは、レンズアレイ
の両端部の底面を支承するための一対の第１の基準面
と、レンズアレイ中央部底面を支承する第２の基準面と
を有していることを特徴とする。The image device of the present invention includes a housing,
In an image device having a substrate on which image elements are mounted and a lens array, the housing supports a pair of first reference planes for supporting the bottom surfaces of both ends of the lens array, and a bottom surface of the central portion of the lens array. And a second reference surface that
【０００７】[0007]
【発明の作用】この発明では、レンズアレイ中央部底面
を第２の基準面で位置決めするので、容易にレンズアレ
イの反りを矯正することができる。即ち画像装置の組立
時に、レンズアレイを予め僅かにハウジングに対して凸
に反らせ、ハウジングに組み付けながら加圧すれば、レ
ンズアレイの中央部の底部を第２の基準面で位置決めで
き、しかも容易に反りを矯正できる。第２の基準面は、
レンズアレイ底部の側部のみに触れるようにするのが好
ましく、このようにすればレンズへの光の入射やレンズ
からの光の出射を妨げることがない。According to the present invention, since the bottom surface of the central portion of the lens array is positioned by the second reference surface, the warp of the lens array can be easily corrected. That is, at the time of assembling the image device, if the lens array is slightly warped in advance with respect to the housing and pressure is applied while being assembled to the housing, the bottom of the central portion of the lens array can be positioned on the second reference surface, and easily. The warp can be corrected. The second reference plane is
It is preferable to touch only the side portion of the bottom of the lens array, and in this case, the incidence of light on the lens and the emission of light from the lens are not hindered.
【０００８】[0008]
【実施例】図１〜図３に、ＬＥＤヘッドを例に実施例を
示す。画像素子をＬＥＤから液晶シャッタアレイやＣＣ
Ｄ素子等に変えれば、他の画像形成装置やイメージセン
サが得られる。図１に、レンズアレイ４のハウジング２
への組付けを示す。ハウジング２の材質には、好ましく
は安価で長尺状のハウジング２への加工が容易なプラス
チックを用い、レンズアレイ４には、例えばガラスやプ
ラスチック等のレンズを１列あるいは２列，３列等に並
べ、接着剤で固めたものを用いる。EXAMPLE FIGS. 1 to 3 show an example of an LED head. Image element from LED to liquid crystal shutter array or CC
By changing to a D element or the like, another image forming apparatus or image sensor can be obtained. In FIG. 1, the housing 2 of the lens array 4 is shown.
Shows the assembly to. The housing 2 is preferably made of plastic, which is inexpensive and easy to process into a long housing 2, and the lens array 4 includes, for example, one or two or three rows of glass or plastic lenses. Use the one that is hardened with an adhesive.
【０００９】図１において、６はガラス等の基板で、８
はＬＥＤアレイ等の画像素子である。１０，１０はハウ
ジング２の両端に設けた突起で、その上面を面出して第
１の基準面１２，１２を設ける。基準面１２，１２は、
レンズアレイ４の両端でレンズを配置していない部分
で、レンズアレイ４の両端の底面を支え、レンズアレイ
４を位置決めする。１４は、ハウジング２の中央部に設
けた突起で、その上面を面出し、第２の基準面１６とす
る。第２の基準面１６は、レンズアレイ４の中央部の底
部を、レンズへの入射光を妨げないように、レンズの外
側の接着剤の部分で支承する。突起１４や第２の基準面
１６は、ハウジング２の２箇所以上に設けても良く、２
箇所に設ける場合、突起１０，１０間を３等分する位置
に設ける。また突起１４や第２の基準面１６を、レンズ
アレイ４の長さ方向の全長に渡って設けても良い。しか
しこれはハウジング２で、形状精度が要求される部分を
大きく広い範囲に設けることになり、ハウジング２のコ
ストを増加させるとともに、第２基準面の精度を得るこ
とが困難で、好ましくない。そこで実施例では、第２の
基準面１６を１箇所のみに設け、基準面１６の加工と面
出しを容易にした。In FIG. 1, 6 is a substrate such as glass, and 8
Is an image element such as an LED array. Reference numerals 10 and 10 denote projections provided at both ends of the housing 2, and the first reference surfaces 12 and 12 are provided by protruding the upper surfaces of the projections. The reference planes 12 and 12 are
The lens array 4 is positioned by supporting the bottom surfaces of both ends of the lens array 4 at the portions where the lenses are not arranged at both ends of the lens array 4. Reference numeral 14 is a protrusion provided at the center of the housing 2, and the upper surface of the protrusion 14 is provided as a second reference surface 16. The second reference surface 16 supports the bottom of the central portion of the lens array 4 with an adhesive portion on the outside of the lens so as not to interfere with light incident on the lens. The protrusion 14 and the second reference surface 16 may be provided at two or more locations on the housing 2.
When it is provided in a place, it is provided in a position that divides the protrusions 10 and 10 into three equal parts. Further, the protrusion 14 and the second reference surface 16 may be provided over the entire length of the lens array 4 in the length direction. However, this is not preferable because the housing 2 is provided with a portion requiring a large shape accuracy in a wide range, which increases the cost of the housing 2 and it is difficult to obtain the accuracy of the second reference surface. Therefore, in the embodiment, the second reference surface 16 is provided only at one location to facilitate the processing and surface preparation of the reference surface 16.
【００１０】１８はレンズアレイ４に設けた方向指示マ
ークで、２０，２０はＬＥＤヘッドの感光体ドラムへの
取付高さの調整ピンである。ピン２０，２０の根元は、
例えば溝２２，２２の中に収容する。Reference numeral 18 is a direction indicating mark provided on the lens array 4, and 20 and 20 are adjusting pins for adjusting the mounting height of the LED head on the photosensitive drum. The roots of the pins 20, 20 are
For example, it is accommodated in the grooves 22, 22.
【００１１】図２に、ＬＥＤヘッドを上から見て、一部
切り欠いた状態を示す。レンズアレイ４は例えばレンズ
を２列に固めたレンズ部２４の両側に、接着剤部２６，
２６を設けたものである。またレンズアレイ４の両端に
は、レンズを設けない接着剤のみの固定部２８がある。
そしてこの固定部２８を第１の基準面１２で位置決め
し、中央を第２の基準面１６で位置決めする。FIG. 2 shows a state in which the LED head is partially cut away when viewed from above. The lens array 4 has, for example, adhesive parts 26, on both sides of a lens part 24 in which lenses are solidified in two rows.
26 is provided. Further, at both ends of the lens array 4, there are fixing portions 28 that are not provided with lenses and are made of only an adhesive.
Then, the fixing portion 28 is positioned by the first reference surface 12 and the center is positioned by the second reference surface 16.
【００１２】実施例のＬＥＤヘッドの組立を説明する。
基板６に、ＬＥＤアレイ８を高さが揃うように固定す
る。ついで基板６をハウジング２に接着剤等で固定す
る。一方レンズアレイ４は、予め僅かに凸に反らせてお
く。レンズアレイ４は軟らかく、簡単に反らせることが
できる。図１に示すように、マーク１８を用いて方向を
確認し、レンズアレイ４がハウジング２に対し凸状にな
る向きに、ハウジング２にセットする。またハウジング
２の基準面１２，１２，１６に、接着剤を塗布してお
く。先ずレンズアレイ４の両端の固定部２８，２８を第
１の基準面１２，１２に当接させ、両端を位置決めす
る。この時レンズアレイ４は、図１の鎖線のように反っ
ている。次に図１の鎖線３０で示した加圧治具を用い、
レンズアレイ４の全面あるいは中央部に圧力を加え、凸
状の反りを矯正ながら、レンズアレイ４をハウジング２
に向けて加圧する。レンズアレイ４は、治具３０からの
圧力で、中央部が第２の基準面１６に当接して固定さ
れ、この状態で反りが矯正される。このようにして反り
を矯正した状態で、両端を接着剤で第１の基準面１２，
１２に固定し、中央部を接着剤で第２の基準面１６に固
定する。レンズアレイ４は接着剤等で、基準面１２，１
２，１６に固定されるので、接着剤が硬化すれば、周囲
の温度や湿度等が変化しても、もはや再び反らなくな
る。The assembly of the LED head of the embodiment will be described.
The LED array 8 is fixed to the substrate 6 so that the heights thereof are even. Then, the substrate 6 is fixed to the housing 2 with an adhesive or the like. On the other hand, the lens array 4 is curved slightly convex beforehand. The lens array 4 is soft and can be bent easily. As shown in FIG. 1, the mark 18 is used to confirm the direction, and the lens array 4 is set in the housing 2 so that the lens array 4 is convex with respect to the housing 2. An adhesive is applied to the reference surfaces 12, 12, 16 of the housing 2 in advance. First, the fixed portions 28, 28 at both ends of the lens array 4 are brought into contact with the first reference surfaces 12, 12 to position both ends. At this time, the lens array 4 is warped as shown by the chain line in FIG. Next, using the pressure jig shown by the chain line 30 in FIG.
The lens array 4 is moved to the housing 2 while pressure is applied to the entire surface or the central portion of the lens array 4 to correct the convex warp.
Pressurize toward. The lens array 4 is fixed by the pressure from the jig 30 so that the central portion of the lens array 4 contacts the second reference surface 16 and the warp is corrected in this state. With the warp corrected in this manner, the first reference surface 12,
Then, the central part is fixed to the second reference surface 16 with an adhesive. The lens array 4 is made of an adhesive or the like, and is used as a reference surface 12, 1.
Since it is fixed to Nos. 2 and 16, once the adhesive hardens, it will no longer warp again even if the ambient temperature or humidity changes.
【００１３】ＬＥＤヘッドの組立精度を説明する。 1) ＬＥＤアレイ８の、基板６への高さの搭載精度は±
１０μｍ以下、 2) 基板６の表面のＬＥＤアレイ８の搭載面の平坦度は
±１０μｍ以下、 3) ハウジング２の基板６の搭載面の平坦度は±５０μ
ｍ以下、 4) 基板６とハウジング２との間の接着剤の厚さのばら
つきは、±１０μｍ以下となる。The assembly accuracy of the LED head will be described. 1) The mounting accuracy of the height of the LED array 8 on the substrate 6 is ±
10 μm or less, 2) The flatness of the mounting surface of the LED array 8 on the surface of the substrate 6 is ± 10 μm or less, 3) The flatness of the mounting surface of the substrate 6 of the housing 2 is ± 50 μm.
m or less, 4) The variation in the thickness of the adhesive between the substrate 6 and the housing 2 is ± 10 μm or less.
【００１４】次にレンズアレイ４は、高さのばらつきが
著しいので、組み付け前に高さ毎に選別する。例えば高
さを±４０μｍ毎に選別すると、レンズアレイ４の高さ
の中心から底面までのばらつきは±２０μｍ以下とな
る。レンズアレイ４の両端のみを位置決めすると、中央
で５０〜１００μｍの底面位置のばらつきがアレイ４の
反りのために生じるが、中央部に第２の基準面１６を設
け、ここでアレイ４の底部の接着剤部２６を位置決めす
ると、反りによる底面高さのばらつきは、±１０μｍ以
下となる。これらを総合すると、ＬＥＤアレイ８とレン
ズアレイ４の高さ方向の中心との距離は、誤差が最大で
も±１００μｍ以下となる。Next, since the lens array 4 has a great variation in height, the lens array 4 is sorted by height before assembly. For example, if the heights are sorted by ± 40 μm, the variation of the height of the lens array 4 from the center to the bottom is ± 20 μm or less. When only the both ends of the lens array 4 are positioned, a variation of the bottom surface position of 50 to 100 μm occurs at the center due to the warp of the array 4, but a second reference surface 16 is provided at the center, where the bottom of the array 4 is provided. When the adhesive portion 26 is positioned, the bottom surface height variation due to warpage is ± 10 μm or less. If these are put together, the distance between the LED array 8 and the center of the lens array 4 in the height direction is ± 100 μm or less even if the error is maximum.
【００１５】実施例では、レンズアレイ４の高さをピン
等で調整しない。このため、ＬＥＤアレイ８とレンズア
レイ４の高さ方向の中心との距離と、使用時の感光体ド
ラムの表面とレンズアレイ４の高さ方向の中心との距離
を等しくする。In the embodiment, the height of the lens array 4 is not adjusted with a pin or the like. Therefore, the distance between the LED array 8 and the center of the lens array 4 in the height direction is made equal to the distance between the surface of the photosensitive drum and the center of the lens array 4 in the height direction when in use.
【００１６】レンズアレイ４の組み付け後に、テレビカ
メラ等で、ＬＥＤアレイ８の高さと、レンズアレイ４の
上下位置とを測定する。最も好ましいことは、レンズア
レイ４の高さの中心とＬＥＤアレイ８との間隔、並びに
図示しない感光体ドラム等とレンズアレイ４の高さの中
心との間隔が、共にレンズアレイ４の共役長Ｔｃの１／
２に一致することである。しかしこれは極めて難しいの
で、これらの間隔がほぼ等しい場合、共役長Ｔｃの１／
２からずれていても、影響が小さいことを利用する。一
方これらの間隔がばらばらに変化する場合、焦点性能の
低下が著しい。例えばＬＥＤアレイ８の個々のＬＥＤか
らの光の、結像面でのビーム径を、焦点性能を現すもの
として考える。ＬＥＤアレイ８や結像面と、レンズアレ
イ４の高さの中心との距離が、共にＴｃの１／２の場合
を基準とし、これらの距離がほぼ等しいままそれぞれ２
００μｍずつシフトした場合、焦点性能の低下によりビ
ーム径は約２０％拡大する。一方、結像面とレンズアレ
イ４の高さの中心との距離をＴｃの１／２に保ったま
ま、ＬＥＤアレイ８とレンズアレイ４の高さの中心との
距離をＴｃから１００μｍずらすと、ビーム径は約２０
％拡大する。After assembling the lens array 4, the height of the LED array 8 and the vertical position of the lens array 4 are measured with a television camera or the like. Most preferably, the distance between the center of the height of the lens array 4 and the LED array 8 and the distance between the height of the lens array 4 and the photosensitive drum (not shown) are both the conjugate length Tc of the lens array 4. 1 / of
It corresponds to 2. However, this is extremely difficult, and when these intervals are almost equal, 1 / of the conjugate length Tc
Even if it deviates from 2, the fact that the influence is small is used. On the other hand, when these distances are changed, the focus performance is significantly deteriorated. For example, the beam diameter of the light from the individual LEDs of the LED array 8 at the image plane is considered to represent the focusing performance. The distance between the LED array 8 or the image plane and the center of the height of the lens array 4 is 1/2 of Tc as a reference.
When shifted by 00 μm, the beam diameter is expanded by about 20% due to the deterioration of focus performance. On the other hand, if the distance between the LED array 8 and the height center of the lens array 4 is shifted by 100 μm from Tc while keeping the distance between the image plane and the height center of the lens array 4 at half of Tc, Beam diameter is about 20
%Expanding.
【００１７】テレビカメラで測定した位置を基に、感光
体ドラム等の結像面に対するＬＥＤヘッドの組み付け位
置を定め、これに合致するようにピン２０，２０を用い
て、ヘッドの取付高さを定める。これはＬＥＤアレイ８
とレンズアレイ４の底面との間隔と、感光体ドラム等に
取付後の結像面とレンズアレイ８の上面との間隔が一致
するように、ピン２０で調整することである。Based on the position measured by the television camera, the mounting position of the LED head with respect to the image forming surface of the photosensitive drum or the like is determined, and the pins 20 and 20 are used so as to match the mounting position of the head. Establish. This is the LED array 8
And the bottom surface of the lens array 4 and the distance between the imaging surface after being attached to the photosensitive drum and the upper surface of the lens array 8 are adjusted by the pin 20.
【００１８】実施例では、レンズアレイ４の高さの中心
とＬＥＤアレイ８の表面との間隔を、ピン等でレンズア
レイ４の底面の位置を調整せずに、±１００μｍ以下に
抑えることができる。そこで結像面とレンズアレイ８の
上面との間隔が一致するように、ピン２０で調整すれ
ば、ビーム径の広がりを理想値に対して＋１０％程度に
収めることができる。この後、図示しないヘッドカバー
等を取付、ハウジング２の内部へのトナーや塵，紙粉等
の侵入を防止する。In the embodiment, the distance between the center of the height of the lens array 4 and the surface of the LED array 8 can be suppressed to ± 100 μm or less without adjusting the position of the bottom surface of the lens array 4 with a pin or the like. .. Therefore, if the pin 20 is adjusted so that the distance between the image plane and the upper surface of the lens array 8 is the same, the spread of the beam diameter can be kept within about + 10% of the ideal value. Thereafter, a head cover or the like (not shown) is attached to prevent toner, dust, paper dust, etc. from entering the inside of the housing 2.
【００１９】図４に、変形例を示す。図において、４
０，４０はレンズアレイ４を３等分するようにハウジン
グ２に設けた突起で、その上面を面出して第２の基準面
４２，４２を設ける。また４４は感光体ドラム４６側に
設けたＬＥＤヘッドの取付部で、ここに設けたピン４
８，４８で、ドラム４６に対するヘッドの位置を調整す
る。即ちレンズアレイ４とＬＥＤアレイ８との距離ｘ
と、レンズアレイ４と感光体ドラム４６との距離ｙを、
一致させる。この変形例は、第２の基準面４２，４２を
２箇所に設けるので、基準面４２，４２の加工に時間と
注意とを要することになる。FIG. 4 shows a modification. In the figure, 4
Reference numerals 0 and 40 denote projections provided on the housing 2 so as to divide the lens array 4 into three equal parts, and the second reference surfaces 42 and 42 are provided so that the upper surfaces thereof are exposed. Reference numeral 44 denotes an LED head mounting portion provided on the side of the photoconductor drum 46, which is a pin 4 provided here.
At 8, 48, the position of the head with respect to the drum 46 is adjusted. That is, the distance x between the lens array 4 and the LED array 8
And the distance y between the lens array 4 and the photosensitive drum 46,
To match. In this modified example, since the second reference surfaces 42, 42 are provided at two places, it takes time and attention to process the reference surfaces 42, 42.
【００２０】なお実施例では、ピン２０，２０やピン４
８，４８で、レンズアレイ４の高さの中心と、ＬＥＤア
レイや感光体ドラムとの距離を一致させたが、これはレ
ンズアレイ４の底面の高さを微調整する必要性を免れる
ためで、反りの解消の次の課題である。In the embodiment, the pins 20 and 20 and the pin 4 are
In 8 and 48, the distance between the center of the height of the lens array 4 and the LED array or the photosensitive drum was made to match, but this is because it avoids the need to finely adjust the height of the bottom surface of the lens array 4. The next issue is to eliminate warpage.
【００２１】[0021]
【発明の効果】この発明では、レンズアレイの反りを容
易にかつ正確に矯正し、画像装置の焦点性能を高めるこ
とができる。According to the present invention, the warp of the lens array can be corrected easily and accurately, and the focusing performance of the image device can be improved.
【図１】 実施例のＬＥＤプリントヘッドの分解状態を
示す側面図FIG. 1 is a side view showing an exploded state of an LED print head according to an embodiment.
【図２】 実施例のＬＥＤプリントヘッドの部分切り欠
き部付き平面図FIG. 2 is a plan view of the LED print head of the embodiment with a partial cutout portion.
【図３】 実施例のＬＥＤプリントヘッドの断面図FIG. 3 is a sectional view of an LED print head according to an embodiment.
【図４】 変形例のＬＥＤプリントヘッドの側面図FIG. 4 is a side view of a modified LED print head.
２ ハウジング ４ レンズアレイ ６ 基板 ８ 画像素子 １０，１４ 突起 １２，１２ 第１の基準面 １６ 第２の基準面 １８ 方向指示マーカ ２０，２０ 調整ピン ２２ 溝 ２４ レンズ部 ２６ 接着剤部 ２８ 固定部 ３０ 加工治具 ４２，４２ 第２の基準面 ４８，４８ 調整ピン 2 Housing 4 Lens Array 6 Substrate 8 Image Element 10, 14 Projection 12, 12 First Reference Plane 16 Second Reference Plane 18 Direction Marker 20, 20 Adjustment Pin 22 Groove 24 Lens Part 26 Adhesive Part 28 Fixing Part 30 Processing jig 42,42 Second reference surface 48,48 Adjustment pin
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｌ 27/12 Ｂ 33/00 Ｎ 8934−4Ｍ Ｈ０４Ｎ 1/028 Ｚ 9070−5Ｃ 1/036 Ｂ 9070−5Ｃ Ａ 9070−5Ｃ Continuation of the front page (51) Int.Cl. 5 Identification number Reference number within the agency FI Technical indication location H01L 27/12 B 33/00 N 8934-4M H04N 1/028 Z 9070-5C 1/036 B 9070-5C A 9070-5C
Claims (1)
と、レンズアレイとを取り付けた画像装置において、 前記ハウジングは、レンズアレイの両端部の底面を支承
するための一対の第１の基準面と、レンズアレイ中央部
底面を支承する第２の基準面とを有していることを特徴
とする画像装置。1. An imaging device having a housing on which a substrate on which image elements are mounted and a lens array are attached, wherein the housing includes a pair of first reference surfaces for supporting bottom surfaces of both ends of the lens array. And a second reference surface that supports the bottom surface of the central portion of the lens array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16041792A JPH05323230A (en) | 1992-05-26 | 1992-05-26 | Image device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16041792A JPH05323230A (en) | 1992-05-26 | 1992-05-26 | Image device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05323230A true JPH05323230A (en) | 1993-12-07 |
Family
ID=15714481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16041792A Pending JPH05323230A (en) | 1992-05-26 | 1992-05-26 | Image device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05323230A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013207A1 (en) * | 1996-09-26 | 1998-04-02 | Sanyo Electric Co., Ltd. | Light emitting diode substrate and its manufacturing method |
| BE1011439A4 (en) * | 1996-03-18 | 1999-09-07 | Oce Printing Systems Gmbh | Unit exhibition of character generator electrographic and manufacturing method thereof. |
| WO2002092349A1 (en) * | 2001-05-16 | 2002-11-21 | Suzuka Fuji Xerox Co., Ltd. | Led print head and production method of led print head and method of producing led substrate and method of pasting led substrate |
| WO2008081846A1 (en) * | 2006-12-26 | 2008-07-10 | Kyocera Corporation | Optical printer head and image forming apparatus provided with the same |
| US7738146B2 (en) | 2005-07-25 | 2010-06-15 | Brother Kogyo Kabushiki Kaisha | Image reading device |
| JP2012516539A (en) * | 2009-01-30 | 2012-07-19 | ネーデルランドセ・オルガニサティ・フォール・トゥーヘパスト−ナトゥールウェテンスハッペライク・オンデルズーク・テーエヌオー | Illumination system for stereolithography apparatus |
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| JP2018058287A (en) * | 2016-10-06 | 2018-04-12 | 富士ゼロックス株式会社 | Manufacturing method of optical device, manufacturing device of optical device, exposure device and image formation apparatus |
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1992
- 1992-05-26 JP JP16041792A patent/JPH05323230A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1011439A4 (en) * | 1996-03-18 | 1999-09-07 | Oce Printing Systems Gmbh | Unit exhibition of character generator electrographic and manufacturing method thereof. |
| US6246429B1 (en) | 1996-09-26 | 2001-06-12 | Sanyo Electric Co., Ltd. | Light emitting diode substrate and its manufacturing method |
| WO1998013207A1 (en) * | 1996-09-26 | 1998-04-02 | Sanyo Electric Co., Ltd. | Light emitting diode substrate and its manufacturing method |
| WO2002092349A1 (en) * | 2001-05-16 | 2002-11-21 | Suzuka Fuji Xerox Co., Ltd. | Led print head and production method of led print head and method of producing led substrate and method of pasting led substrate |
| CN1296213C (en) * | 2001-05-16 | 2007-01-24 | 铃鹿富士施乐株式会社 | LED print-head and producing method thereof, and methof for producing LED substrate and pasting method thereof |
| US7738146B2 (en) | 2005-07-25 | 2010-06-15 | Brother Kogyo Kabushiki Kaisha | Image reading device |
| US8026939B2 (en) | 2006-12-26 | 2011-09-27 | Kyocera Corporation | Optical printer head and image forming apparatus equipped with the same |
| JPWO2008081846A1 (en) * | 2006-12-26 | 2010-04-30 | 京セラ株式会社 | Optical printer head and image forming apparatus having the same |
| WO2008081846A1 (en) * | 2006-12-26 | 2008-07-10 | Kyocera Corporation | Optical printer head and image forming apparatus provided with the same |
| JP2012516539A (en) * | 2009-01-30 | 2012-07-19 | ネーデルランドセ・オルガニサティ・フォール・トゥーヘパスト−ナトゥールウェテンスハッペライク・オンデルズーク・テーエヌオー | Illumination system for stereolithography apparatus |
| US8915620B2 (en) | 2009-01-30 | 2014-12-23 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Illumination system for use in a stereolithography apparatus |
| CN106161863A (en) * | 2015-05-14 | 2016-11-23 | 罗姆股份有限公司 | Image sensor module |
| JP2016219880A (en) * | 2015-05-14 | 2016-12-22 | ローム株式会社 | Image sensor module |
| JP2018058287A (en) * | 2016-10-06 | 2018-04-12 | 富士ゼロックス株式会社 | Manufacturing method of optical device, manufacturing device of optical device, exposure device and image formation apparatus |
| JP2018200462A (en) * | 2017-05-29 | 2018-12-20 | キヤノン株式会社 | Method for fixing regulation blade and developing device |
| JP2022141974A (en) * | 2017-05-29 | 2022-09-29 | キヤノン株式会社 | Method for fixing regulation blade |
| JP2018182758A (en) * | 2018-07-24 | 2018-11-15 | 三菱電機株式会社 | Image reading apparatus and assembly method thereof |
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