JP3140834B2 - 1x imaging element structure - Google Patents
1x imaging element structureInfo
- Publication number
- JP3140834B2 JP3140834B2 JP04082562A JP8256292A JP3140834B2 JP 3140834 B2 JP3140834 B2 JP 3140834B2 JP 04082562 A JP04082562 A JP 04082562A JP 8256292 A JP8256292 A JP 8256292A JP 3140834 B2 JP3140834 B2 JP 3140834B2
- Authority
- JP
- Japan
- Prior art keywords
- optical axis
- axis direction
- orthogonal
- housing
- lens array
- 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.)
- Expired - Lifetime
Links
Landscapes
- Optical Systems Of Projection Type Copiers (AREA)
- Facsimile Heads (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、等倍結像素子構造、例
えば、複写機、ファクシミリ等、読み取り、書込みをす
る光学機器に用いる等倍結像素子構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 1: 1 image forming element structure, for example, a 1: 1 image forming element structure used in an optical apparatus for reading and writing such as a copying machine and a facsimile.
【０００２】[0002]
【従来の技術】従来の等倍結像素子構造としては、例え
ば、特開平２−１６１４０１号公報、実開昭６３−４９
８６０号公報、特開平１−２９１２１１号公報および特
開昭６０−１００１１９号公報に記載されたようなもの
がある。これらは、等倍結像素子構造を構成する部品で
あるレンズアレイ、ルーフミラーアレイおよび絞り板の
ソリのないものを作成するために、ルーフミラーアレイ
を特定の手順によりソリやタワミの少ないミラーを作成
したり、また、ソリの少ない部材を用いて他の部品のソ
リを矯正したり、さらに、ハウジングと一体成形するこ
とにより、絞り板のソリを矯正したり、さらにまた、部
品同志をピンと孔で位置固めするものである。これら
は、等倍結像素子構造を構成する各部品のソリを小さ
く、または、矯正するものである。2. Description of the Related Art A conventional unit-magnification imaging element structure is disclosed in, for example, Japanese Patent Laid-Open Publication No.
Japanese Unexamined Patent Publication No. 860, Japanese Patent Application Laid-Open No. 1-291111, and Japanese Patent Application Laid-Open No. 60-100119 are known. In order to create a lens array, a roof mirror array, and an aperture plate without warping, which are the components that make up the unit magnification imaging element structure, a mirror with less warpage and warpage is applied to the roof mirror array by a specific procedure. Create or correct the warpage of other parts using a member with less warp, and correct the warp of the aperture plate by molding integrally with the housing. To fix the position. These are to reduce or correct the warp of each component constituting the 1: 1 imaging element structure.
【０００３】これらとほぼ同様な構成の従来の等倍結像
素子構造を図６により説明する。図６（ａ）に示す等倍
結像素子構造１は、複数のレンズ２を配列方向（または
アレイ方向）Ａ（図には矢印Ａにて示す）に配置した長
尺のレンズアレイ（以下、ＬＡともいう）３と、光軸方
向Ｂの光束を絞る絞り板４と、屋根形反射鏡５を配列方
向Ａに配置した長尺のルーフミラーアレイ（以下、ＲＡ
Ｍともいう）６とを有し、これらを配列方向Ａ、光軸方
向Ｂ、および配列方向Ａと光軸方向Ｂに直交する直交方
向（または副走査方向ともいう）Ｃを所定の相対位置で
ルーフミラーレンズアレイ（以下、ＲＭＬＡともいう）
７を形成し、これをさらに、ハウジング８に収容、固定
したものである。A conventional unit-magnification imaging element structure having substantially the same configuration as above will be described with reference to FIG. The unit-magnification imaging element structure 1 shown in FIG. 6A has a long lens array (hereinafter, referred to as an arrow A in FIG. 6) in which a plurality of lenses 2 are arranged in an array direction (or array direction) A (shown by an arrow A in the figure). LA) 3, an aperture plate 4 for narrowing the light beam in the optical axis direction B, and a long roof mirror array (hereinafter referred to as RA) in which a roof-shaped reflecting mirror 5 is arranged in the arrangement direction A.
M) 6 at a predetermined relative position in the arrangement direction A, the optical axis direction B, and the orthogonal direction (or the sub-scanning direction) C orthogonal to the arrangement direction A and the optical axis direction B. Roof mirror lens array (hereinafter also referred to as RMLA)
7 is formed, which is further housed and fixed in the housing 8.
【０００４】図６（ｂ）に示す等倍結像素子構造１にお
いて、物点Ｐからの光束は複数のレンズ２、絞り板４の
開口およびハウジング８の反射鏡５に入射し、反射鏡５
で２度反射され、再び逆行して、光路分離ミラー９によ
り反射され、合成されて像点Ｑに結像する。In the unit-magnification imaging element structure 1 shown in FIG. 6B, a light beam from an object point P enters a plurality of lenses 2, an opening of an aperture plate 4 and a reflecting mirror 5 of a housing 8, and is reflected by the reflecting mirror 5.
Is reflected twice, goes back again, is reflected by the optical path separating mirror 9, is synthesized and forms an image at the image point Q.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の等倍結像素子構造にあっては、レンズアレイ
３、ルーフミラーアレイ６および絞り板４の位置が相互
に直交方向Ｃまたは光軸方向Ｂにズレたりすると合成さ
れる像点Ｑの像のズレが生じたり、解像度の低下または
光量のムラ等が生ずる。また、レンズアレイ３、ルーフ
ミラーアレイ６および絞り板４があらかじめ所定の相互
位置で位置決めされ固定された、いわゆる３点セットさ
れたルーフミラーレンズアレイ７であっても、３点セッ
トされたルーフミラーレンズアレイ７がハウジング８に
対して図３（ｂ）に示すように直交方向Ｃまたは光軸方
向Ｂにズレたり、または図に矢印Ｄで示すように傾斜し
たりすると、像は目標の像点Ｑに結像せずＱ1 点またＱ
2 点にズレたり、ボケたりして結像精度が低下するとい
う問題点がある。このようなことは、10数μｍの位置決
めのズレによっても起こる。However, in such a conventional unity-magnification imaging element structure, the positions of the lens array 3, the roof mirror array 6, and the aperture plate 4 are mutually perpendicular to the direction C or the optical axis. If the image is displaced in the direction B, the image of the image point Q to be synthesized is displaced, the resolution is reduced, or the light amount is uneven. Further, even if the so-called three-point set roof mirror lens array 7 in which the lens array 3, the roof mirror array 6, and the aperture plate 4 are positioned and fixed at predetermined mutual positions in advance, the three-point set roof mirror When the lens array 7 is displaced with respect to the housing 8 in the orthogonal direction C or the optical axis direction B as shown in FIG. 3B, or is inclined as shown by the arrow D in the figure, the image becomes the target image point. Q 1 point and Q without imaging on Q
There is a problem that image formation accuracy is degraded due to displacement or blurring between two points. Such a situation also occurs due to a positioning error of about 10 μm.
【０００６】[0006]
【発明の目的】本発明は、このような従来技術を背景に
なされたものであり、ハウジングの内面にルーフミラー
レンズアレイの光軸方向Ｂの位置を決める光軸方向基準
面および直交方向Ｃの位置を決める直交方向基準面を設
け、また、ルーフミラーレンズアレイの光軸方向圧接手
段および直交方向圧接手段を設けることにより、ルーフ
ミラーレンズアレイのハウジング内の位置決め精度を高
め、結像精度を大幅に向上することができ、ハウジング
への組み付けが簡単で迅速に精度よくできる等倍結像素
子構造を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made on the background of the prior art, and has an optical axis direction reference plane for determining the position of the roof mirror lens array in the optical axis direction B and an orthogonal direction C on the inner surface of the housing. By providing an orthogonal reference plane that determines the position, and by providing a roof mirror lens array optical axis direction pressure contact means and orthogonal direction pressure contact means, the positioning accuracy of the roof mirror lens array in the housing is increased, and the imaging accuracy is greatly improved. It is an object of the present invention to provide a unit-size imaging element structure which can be easily and quickly assembled with high precision.
【０００７】[0007]
【課題を解決するための手段】請求項１記載の発明は、
複数のレンズを配列方向に配置した長尺のレンズアレイ
と、光束を絞る絞り板と、ルーフミラーアレイと、をあ
らかじめ互いに位置決めし固定したルーフミラーレンズ
アレイをハウジング内に収容し組み付けた等倍結像素子
構造であって、前記ハウジングの内面に前記ルーフミラ
ーレンズアレイの光軸方向の側面に接しルーフミラーレ
ンズアレイの光軸方向の位置を決める光軸方向基準面
と、前記ルーフミラーレンズアレイの光軸方向および配
列方向に直交する直交方向の側面に接しルーフミラーレ
ンズアレイの直交方向の位置を決める直交方向基準面
と、を設け、ルーフミラーレンズアレイを前記光軸方向
基準面に圧接し固定する光軸方向圧接手段と、ルーフミ
ラーレンズアレイを前記直交方向基準面に圧質し固定す
る直交方向圧接手段と、を備えたことを特徴とするもの
である。According to the first aspect of the present invention,
An equal-size lens combining a long lens array in which a plurality of lenses are arranged in an array direction, a diaphragm plate for narrowing a light beam, and a roof mirror array in which a roof mirror array is pre-positioned and fixed in a housing. An image element structure, wherein an optical axis direction reference surface which is in contact with the optical axis direction side surface of the roof mirror lens array on the inner surface of the housing and determines a position of the roof mirror lens array in the optical axis direction; An orthogonal reference surface that is in contact with a side surface in an orthogonal direction orthogonal to the optical axis direction and the arrangement direction and that determines a position in the orthogonal direction of the roof mirror lens array, and presses and fixes the roof mirror lens array to the optical axis direction reference surface. Optical axis direction pressure contact means, and orthogonal direction pressure contact means for pressing and fixing a roof mirror lens array on the orthogonal direction reference plane The is characterized in that it comprises.
【０００８】また、請求項２記載の発明では、前記光軸
方向圧接手段は光軸方向に垂直な前記ハウジング壁部に
設けた貫通孔を通して、前記ルーフミラーレンズアレイ
にネジ込みネジ止めする少なくとも１つ以上の軸ネジを
有し、前記直交方向圧接手段は直交方向に垂直な前記ハ
ウジング壁部に設けた貫通孔を通して前記絞り板にネジ
込みネジ止めする少なくとも１つ以上の直交ネジを有す
ることを特徴とするものである。Further, in the invention according to claim 2, the optical axis direction pressure contact means passes through a through hole provided in the housing wall perpendicular to the optical axis direction and is screwed into the roof mirror lens array and screwed. It has at least one axial screw, and the orthogonal pressing means has at least one or more orthogonal screws which are screwed into the diaphragm plate through through holes provided in the housing wall perpendicular to the orthogonal direction. It is a feature.
【０００９】また、請求項３記載の発明では、前記光軸
方向圧接手段は前記ルーフミラーレンズアレイの光軸方
向の側面と前記ハウジングとの間に介装された光軸方向
バネ部材であり、前記直交方向圧接手段は前記ルーフミ
ラーレンズアレイの直交方向の側面と前記ハウジングと
の間に介装された直交方向バネ部材であることを特徴と
するものである。In the invention according to claim 3, the optical axis direction pressure contact means is an optical axis direction spring member interposed between the side surface of the roof mirror lens array in the optical axis direction and the housing, The orthogonal direction pressure contact means is an orthogonal direction spring member interposed between the side surface in the orthogonal direction of the roof mirror lens array and the housing.
【００１０】また、請求項４記載の発明では、前記ハウ
ジングの前記絞り板に対向するハウジング内部から絞り
板側に開口し断面Ｔ字状で前記配列方向と平行に貫通し
頭部孔と頚部孔を有する係合孔と、該係合孔に係合し断
面Ｔ字状で前記配列方向と平行に連続または不連続に形
成され頭部と頚部からなる突出した突起を有する絞り板
と、を備え、前記直交方向圧接手段は前記頚部孔の直交
方向頚孔長ａ1 を前記頚部の直交方向の頚長ａ2 以上の
長さにすることにより構成し、前記光軸方向圧接手段
は、前記光軸方向基準面から前記頚部孔の基準面から遠
い開口縁までの開口距離ｂ1 を前記開口縁に対応する前
記頚部の対応面からルーフミラーレンズアレイの光軸方
向の側面までの突起距離ｂ2 より小さく構成したことを
特徴とするものである。According to the present invention, a head hole and a neck hole are opened from the inside of the housing facing the diaphragm plate to the diaphragm plate side and penetrate in a T-shaped cross section in parallel with the arrangement direction. And an aperture plate which is engaged with the engagement hole, has a T-shaped cross section, is formed continuously or discontinuously in parallel with the arrangement direction, and has a protruding projection composed of a head and a neck. , the orthogonal direction pressing means is constituted by the orthogonal direction Keianacho a 1 of the neck hole in the direction perpendicular to the neck length a 2 or more of the length of the neck, the optical axis direction pressing means, the light The opening distance b 1 from the axial reference plane to the opening edge far from the reference surface of the neck hole is the projection distance b 2 from the corresponding surface of the neck corresponding to the opening edge to the side surface of the roof mirror lens array in the optical axis direction. It is characterized by having been made smaller.
【００１１】また、請求項５記載の発明では、請求項１
の構成に加え、前記光軸方向圧接手段および前記直交方
向圧接手段は前記レンズアレイ、前記絞り板および前記
ルーフミラーアレイのいずれかの外表部が前記ハウジン
グの光軸方向基準面および直交方向基準面のそれぞれに
対向するハウジングの２つの対向内面に当接し、それぞ
れ光軸方向基準面側および直交方向基準面側に付勢力を
発生することを特徴とするものである。Further, according to the invention described in claim 5, according to claim 1,
In addition to the above configuration, the optical axis direction pressure contact means and the orthogonal direction pressure contact means may be arranged such that any one of the lens array, the aperture plate, and the roof mirror array has an outer surface portion, the optical axis direction reference surface and the orthogonal direction reference surface of the housing. Abut on two opposing inner surfaces of the housing opposing each other, and generate an urging force on the optical axis direction reference surface side and the orthogonal direction reference surface side, respectively.
【００１２】また、請求項６記載の発明では、請求項５
の構成に加え、前記レンズアレイ、前記絞り板および前
記ルーフミラーアレイのいずれかの外表部は前記ハウジ
ングの光軸方向基準面および直交方向基準面のそれぞれ
に対向するハウジングの２つの対向内面に当接し、弾性
変形および塑性変形可能である部分を有することを特徴
とするものである。Further, according to the invention described in claim 6, according to claim 5,
In addition to the above configuration, the outer surface of any one of the lens array, the aperture plate, and the roof mirror array contacts two opposing inner surfaces of the housing that face the optical axis direction reference surface and the orthogonal direction reference surface, respectively. It has a portion that is in contact with and is capable of elastic deformation and plastic deformation.
【００１３】また、請求項７記載の発明では、請求項５
または６記載の構成に加え、前記光軸方向圧接手段は前
記ルーフミラーアレイの底板の外表部に前記ハウジング
の前記光軸方向基準面に対向するハウジングの対向内面
側に突出し、対向内面に当接し、弾性変形および塑性変
形可能に底板に一体的に形成された複数の底部突起を設
けることを特徴とするものである。[0013] According to the invention described in claim 7, according to claim 5,
Or the optical axis direction pressure contact means protrudes from the outer surface of the bottom plate of the roof mirror array to the opposite inner surface side of the housing facing the optical axis direction reference surface of the housing, and abuts on the opposite inner surface. And a plurality of bottom projections integrally formed on the bottom plate so as to be elastically and plastically deformable.
【００１４】また、請求項８記載の発明では、請求項
５、６または７記載の構成に加え、前記直交方向圧接手
段は前記絞り板の側板の外表部に、前記ハウジングの前
記直交方向基準面に対向するハウジングの対向内面側に
突出し、対向内面に当接し、弾性変形および塑性変形可
能に側板に一体的に形成された複数の側部突起を設ける
ことを特徴とするものである。According to an eighth aspect of the present invention, in addition to the configuration of the fifth, sixth or seventh aspect, the orthogonal pressing means is provided on an outer surface of a side plate of the diaphragm plate, and on the orthogonal reference surface of the housing. And a plurality of side projections integrally formed on the side plate so as to be elastically and plastically deformable.
【００１５】[0015]
【作用】請求項１記載の発明では、レンズアレイ、絞り
板およびルーフミラーレンズアレイがあらかじめ互いに
位置決めされ固定し３点セットされたルーフミラーレン
ズアレイがハウジング内に収容されると、光軸方向圧接
手段によりルーフミラーレンズアレイの光軸方向側面
が、光軸方向基準面に圧接され精度よく位置決めされる
とともに、直交方向圧接手段によりルーフミラーレンズ
アレイの直交方向側面が直交方向基準面に圧接され精度
よく位置決めされる。According to the first aspect of the present invention, when the roof mirror lens array in which the lens array, the aperture plate, and the roof mirror lens array are previously positioned and fixed and fixed at three points is accommodated in the housing, the optical axis direction pressure contact is performed. The side surface of the roof mirror lens array in the optical axis direction is pressed against the reference surface in the optical axis direction by the means, and the orthogonal side surface of the roof mirror lens array is pressed against the reference surface in the orthogonal direction by the orthogonal pressing means. Well positioned.
【００１６】また、請求項２記載の発明では、前述のル
ーフミラーレンズアレイがハウジング内に収容され、軸
ネジをハウジングの孔を通して、ルーフミラーレンズア
レイにネジ込むことにより、ルーフミラーレンズアレイ
の光軸方向の側面が光軸方向基準面に圧接され光軸方向
の位置決めがなされる。直交方向においても、同様に直
交ネジをネジ込むことにより、直交方向の位置決めがな
される。According to the second aspect of the present invention, the roof mirror lens array is housed in the housing, and a shaft screw is screwed into the roof mirror lens array through a hole in the housing, so that the light of the roof mirror lens array is adjusted. The side surface in the axial direction is pressed against the reference surface in the optical axis direction to perform positioning in the optical axis direction. In the orthogonal direction, the orthogonal direction is similarly positioned by screwing the orthogonal screw.
【００１７】また、請求項３記載の発明では、前述の３
点セットされたルーフミラーレンズアレイがハウジング
内に収容されると、光軸方向バネ部材がハウジング内面
からの反力として、ルーフミラーレンズアレイの光軸方
向一方の側面を光軸方向に付勢する。ルーフミラーレン
ズアレイの光軸方向他方の側面が光軸方向基準面に圧接
され位置決めされる。直交方向においても、同様に直交
方向バネ部材により、直交方向に付勢され直交方向の位
置決めがなされる。According to the third aspect of the present invention, the above-mentioned 3
When the point-set roof mirror lens array is housed in the housing, the optical axis direction spring member urges one side in the optical axis direction of the roof mirror lens array in the optical axis direction as a reaction force from the inner surface of the housing. . The other side surface in the optical axis direction of the roof mirror lens array is pressed against the optical axis direction reference surface and positioned. In the orthogonal direction, the orthogonal direction spring member similarly urges in the orthogonal direction to perform positioning in the orthogonal direction.
【００１８】また、請求項４記載の発明では、前述の３
点セットされたルーフミラーレンズアレイがハウジング
内に収容されるとともに、Ｔ字状突起が断面Ｔ字状の係
合孔に係合される。係合孔の頚孔長ａ1 が突起の頚長ａ
2以上の長さを有するので、絞り板は直交方向に付勢さ
れルーフミラーレンズアレイの直交方向側面は直交方向
基準面に圧接され位置決めされる。また、頚部孔の開口
距離ｂ1 は突起の突起距離ｂ2 以下であるので、光軸方
向においても、同様に絞り板は光軸方向に付勢され、ル
ーフミラーレンズアレイの光軸方向側面は光軸方向基準
面に圧接され位置決めをする。Further, in the invention according to claim 4, the aforementioned 3
The point-set roof mirror lens array is housed in the housing, and the T-shaped projection is engaged with the engagement hole having a T-shaped cross section. The neck length a 1 of the engagement hole is the neck length a of the projection.
Since the aperture plate has two or more lengths, the diaphragm plate is urged in the orthogonal direction, and the orthogonal side surface of the roof mirror lens array is pressed against the orthogonal reference surface and positioned. Further, since the opening distance b 1 of the neck hole are the following projection distance b 2 of the projection, in the optical axis direction, similar to the aperture plate is urged in the direction of the optical axis, the optical axis direction sides of the roof mirror lens array The positioning is performed by pressing against the reference plane in the optical axis direction.
【００１９】また、請求項５記載の発明では、レンズア
レイ、絞り板およびルーフミラーアレイのいずれかの外
表部がハウジングの２つの対向内面に当接し、付勢力を
発生するので、レンズアレイ、絞り板およびルーフミラ
ーアレイをあらかじめ互いに位置決めし固定したルーフ
ミラーレンズアレイをハウジング内に挿入すると、レン
ズアレイ、絞り板およびルーフミラーアレイのいずれか
の外表部が２つの対向内面に当接し、２つの対向内面の
反力として、一体的なルーフミラーレンズアレイは光軸
方向基準面側および直交方向基準面側に付勢され固定さ
れる。According to the fifth aspect of the present invention, any one of the outer surface of the lens array, the aperture plate, and the roof mirror array abuts on two opposing inner surfaces of the housing to generate an urging force. When the roof mirror lens array, in which the plate and the roof mirror array are previously positioned and fixed to each other, is inserted into the housing, the outer surface of any one of the lens array, the diaphragm plate, and the roof mirror array abuts on the two opposing inner surfaces, and the two opposing inner surfaces. As a reaction force of the inner surface, the integrated roof mirror lens array is urged toward and fixed to the optical axis direction reference surface and the orthogonal direction reference surface.
【００２０】また、請求項６記載の発明では、レンズア
レイ、絞り板およびルーフミラーアレイのいずれかの外
表部がハウジングの２つの対向内面に当接し弾性変形お
よび塑性変形して付勢力を発生するので、レンズアレ
イ、絞り板およびルーフミラーアレイをあらかじめ互い
に位置決めし固定したルーフミラーレンズアレイをハウ
ジング内に挿入すると、レンズアレイ、絞り板およびル
ーフミラーアレイのいずれかの外表部が２つの対向内面
に当接して、弾性変形および塑性変形し、２つの対向内
面の反力として、一体的なルーフミラーレンズアレイは
光軸方向基準面側および直交方向基準面側に弾性変形に
対応した付勢力で付勢され固定される。According to the sixth aspect of the present invention, any one of the outer surface of the lens array, the aperture plate, and the roof mirror array abuts the two opposing inner surfaces of the housing to generate elastic force and plastic deformation to generate an urging force. Therefore, when the lens array, the diaphragm plate and the roof mirror array in which the roof mirror array is positioned and fixed in advance are inserted into the housing, the outer surface of any one of the lens array, the diaphragm plate and the roof mirror array is placed on the two opposing inner surfaces. The roof mirror lens array is integrally and elastically deformed and plastically deformed, and as a reaction force between the two opposing inner surfaces, the integrated roof mirror lens array is applied to the reference surface side in the optical axis direction and the reference surface side in the orthogonal direction by an urging force corresponding to the elastic deformation. Forced and fixed.
【００２１】また、請求項７記載の発明では、ルーフミ
ラーアレイがこの底板の外表部にハウジングの対向内面
に当接し弾性変形および塑性変形する光軸方向圧接手段
としての底部突起を有するので、ルーフミラーレンズア
レイがハウジング内に挿入されると、ルーフミラーアレ
イの底部突起は弾性変形および塑性変形しながら挿入さ
れ対向内面に当接し、弾性変形に対応した付勢力でルー
フミラーアレイを光軸方向基準面側に付勢する。According to the seventh aspect of the present invention, the roof mirror array has a bottom projection as an optical axis direction pressure contact means for elastically deforming and plastically deforming by contacting the inner surface of the housing at the outer surface of the bottom plate. When the mirror lens array is inserted into the housing, the bottom projection of the roof mirror array is inserted while elastically and plastically deformed and abuts against the opposing inner surface, and the roof mirror array is positioned in the optical axis direction with a biasing force corresponding to the elastic deformation. Energize to the surface side.
【００２２】また、請求項８記載の発明では、絞り板が
この側板の外表部にハウジングの対向内面に当接し弾性
変形および塑性変形する直交方向圧接手段としての側部
突起を有するので、ルーフミラーレンズアレイがハウジ
ング内に挿入されると、絞り板の側面部は弾性変形およ
び塑性変形しながら挿入され、対向内面に当接し、弾性
変形に対応した付勢力で絞り板を直交方向基準面側に付
勢する。According to the eighth aspect of the present invention, since the diaphragm plate has side projections as orthogonal pressing means for elastically and plastically deforming on the outer surface of the side plate by abutting against the opposed inner surface of the housing, the roof mirror is provided. When the lens array is inserted into the housing, the side surface of the diaphragm plate is inserted while undergoing elastic deformation and plastic deformation, abuts against the opposing inner surface, and the diaphragm plate is moved toward the reference surface in the orthogonal direction with the biasing force corresponding to the elastic deformation. Energize.
【００２３】[0023]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。図１（ａ）は本発明の請求項１、２に係る等倍結像
素子構造の第１実施例を示す図である。図１（ａ）にお
いて、11は等倍結像素子構造であり、等倍結像素子構造
11は、複数のレンズ12を等ピッチで一列に配列方向に配
置した長尺のレンズアレイ13と、レンズ12の位置に対応
し複数の屋根形反射鏡14を一列に配置して一体形成した
ルーフミラーアレイ15と、ルーフミラーアレイ15とレン
ズアレイ13との間に介在し、光束を絞る絞り板16と、を
備えている。また、等倍結像素子構造11はこれらのレン
ズアレイ13、絞り板16およびルーフミラーアレイ15をあ
らかじめ互いに位置決めし、ピン17と穴、または接着剤
等（この実施例ではピン17）で固定され、いわゆる３点
セットされたルーフミラーレンズアレイ（以下、ＲＭＬ
Ａという）18を断面四角状で上方が開口した長尺のハウ
ジング20内に収容している。ハウジング20はレンズアレ
イ13、ルーフミラーアレイ15、絞り板16等のプラスチッ
ク成形品に対して十分な強度を有する構造をなしてい
る。ハウジング20の内面にはルーフミラーレンズアレイ
18の光軸方向Ｂのレンズアレイ13側の側面に接してルー
フミラーレンズアレイ18の光軸方向Ｂの位置を決める光
軸方向基準面20Ｂ（図には波状線を付記し示している）
が設けられ、ルーフミラーレンズアレイ18の光軸方向Ｂ
と配列方向Ａに直交する直交方向Ｃの側面に接し、ルー
フミラーレンズアレイ18の直交方向Ｃ方向の位置を決め
る直交方向基準面20Ｃ（図には波状線を付記している）
が設けられている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a view showing a first embodiment of a unit-size imaging element structure according to claims 1 and 2 of the present invention. In FIG. 1A, reference numeral 11 denotes an equal-magnification imaging element structure.
11 is a long lens array 13 in which a plurality of lenses 12 are arranged in a row at an equal pitch in an array direction, and a roof in which a plurality of roof-shaped reflecting mirrors 14 are arranged in a row corresponding to the positions of the lenses 12 to be integrally formed. A mirror array 15 and an aperture plate 16 that is interposed between the roof mirror array 15 and the lens array 13 and reduces the light flux are provided. In the same-magnification imaging element structure 11, the lens array 13, the aperture plate 16, and the roof mirror array 15 are positioned with respect to each other in advance, and fixed with pins 17 and holes, or an adhesive (pin 17 in this embodiment). A so-called three-piece set roof mirror lens array (hereinafter referred to as RML)
A) 18 is housed in a long housing 20 having a rectangular cross section and an upper opening. The housing 20 has a structure having sufficient strength for plastic molded products such as the lens array 13, the roof mirror array 15, and the aperture plate 16. Roof mirror lens array on inner surface of housing 20
An optical axis direction reference surface 20B which is in contact with a side surface of the roof mirror lens array 18 in the optical axis direction B in contact with a side surface of the roof mirror lens array 18 in the optical axis direction B (a wavy line is shown in the figure).
Is provided, and the optical axis direction B of the roof mirror lens array 18 is
And an orthogonal reference plane 20C that determines the position of the roof mirror lens array 18 in the orthogonal direction C (indicated by a wavy line in the figure).
Is provided.
【００２４】23は光軸方向圧接手段であり、光軸方向圧
接手段23は、光軸方向Ｂに垂直で光軸方向基準面を有す
るハウジング壁部でハウジング20の開口の近傍に設けた
光軸方向Ｂの複数（この実施例では５本）の貫通孔20ａ
と、この貫通孔20ａに対応してレンズアレイ13の周辺部
に設けられたネジ孔13ａと、軸ネジ24と、を有してい
る。軸ネジ24は貫通孔20ａを通してレンズアレイ13のネ
ジ孔13ａにネジ込みネジ止め可能である。Reference numeral 23 denotes an optical axis direction pressure contact means. The optical axis direction pressure contact means 23 is a housing wall portion which is perpendicular to the optical axis direction B and has a reference surface in the optical axis direction and is provided near the opening of the housing 20. Plural (five in this embodiment) through holes 20a in direction B
And a screw hole 13a provided in the periphery of the lens array 13 corresponding to the through hole 20a, and a shaft screw 24. The shaft screw 24 can be screwed into the screw hole 13a of the lens array 13 through the through hole 20a.
【００２５】26は直交方向圧接手段であり、直交方向圧
接手段26は絞り板16に対向する直交方向Ｃで直交方向基
準面20Ｃを有するハウジング壁部に直交方向Ｃに設けた
複数（この実施例では５個）の貫通孔20ｂと、貫通孔20
ｂに対向し絞り板16内に設けたネジ孔16ａと、直交ネジ
27と、を有している。直交ネジ27は貫通孔20ｂを通して
絞り板16のネジ孔16ａにネジ込みネジ止め可能である。Numeral 26 denotes orthogonal pressing means. A plurality of orthogonal pressing means 26 are provided in the orthogonal direction C on the housing wall having the orthogonal reference plane 20C in the orthogonal direction C facing the diaphragm plate 16 (this embodiment). 5) through hole 20b and through hole 20
a screw hole 16a provided in the aperture plate 16 facing the b.
27 and. The orthogonal screw 27 can be screwed into the screw hole 16a of the diaphragm plate 16 through the through hole 20b.
【００２６】次に、作用について説明する。３セットさ
れたルーフミラーレンズアレイ18がハウジング20内に挿
入され、貫通孔20ａとネジ孔13ａとを一致させ、貫通孔
20ｂとネジ孔16ａとを一致させた後、それぞれ、軸ネジ
24を貫通孔20ａを通してネジ孔13ａにネジ込みネジ止め
するとともに、直交ネジ27を貫通孔20ｂを通してネジ孔
16ａにネジ込みネジ止めする。ルーフミラーレンズアレ
イ18は光軸方向Ｂ側面が光軸方向基準面20Ｂに圧接する
とともに光軸方向Ｃ側側面が直交方向基準面20Ｃに圧接
し、ルーフミラーレンズアレイ18はハウジング20内に精
度よく位置決めされる。位置決め時の調整作業がなく位
置決め作業が迅速にできる。Next, the operation will be described. Three sets of the roof mirror lens array 18 are inserted into the housing 20, and the through hole 20a and the screw hole 13a are aligned with each other.
After aligning 20b with the screw hole 16a, respectively,
24 is screwed into the screw hole 13a through the through hole 20a, and the orthogonal screw 27 is screwed through the through hole 20b.
Screw in 16a. The side surface of the roof mirror lens array 18 in the optical axis direction B is pressed against the reference surface 20B in the optical axis direction, and the side surface in the optical axis direction C is pressed against the reference surface 20C in the orthogonal direction. Positioned. There is no adjustment work during positioning, and positioning work can be performed quickly.
【００２７】図１（ｂ）は本発明の請求項１、３に係る
等倍結像素子構造の第２実施例を示す図であり、第１実
施例と同じ構成には同じ符号をつける。図１（ｂ）に示
す等倍結像素子構造31では、光軸方向圧接手段23がルー
フミラーレンズアレイ18の光軸方向Ｂで光軸方向基準面
20Ｂから遠い側のルーフミラーレンズアレイ18の側面す
なわち、ルーフミラーアレイ15側の側面とハウジング20
との間に介装された弾性体である波状の板バネ33であ
り、直交方向圧接手段26がルーフミラーレンズアレイ18
の直交方向Ｃで直交方向基準面20Ｃから遠い側のルーフ
ミラーレンズアレイ18の側面、特に、絞り板16の側面と
ハウジング20との間に介装された板バネ34である場合で
ある。FIG. 1B is a view showing a second embodiment of the same-magnification imaging element structure according to claims 1 and 3 of the present invention, and the same components as those in the first embodiment are denoted by the same reference numerals. In the unit magnification imaging element structure 31 shown in FIG. 1B, the optical axis direction pressure contact means 23 is provided in the optical axis direction B of the roof mirror lens array 18 in the optical axis direction reference plane.
The side surface of the roof mirror lens array 18 far from the side 20B, that is, the side surface of the roof mirror array 15 side and the housing 20
Is a wavy leaf spring 33, which is an elastic body interposed between the roof mirror lens array 18 and the orthogonal pressing means 26.
In this case, the leaf spring 34 is interposed between the side surface of the roof mirror lens array 18, in particular, the side surface of the diaphragm plate 16 and the housing 20, which is farther from the orthogonal reference plane 20 C in the orthogonal direction C.
【００２８】３点セットされたルーフミラーレンズアレ
イ18がハウジング20内に板バネ33および板バネ34に接し
ながら配列方向Ａに挿入されると、ルーフミラーレンズ
アレイ18は、板バネ33および板バネ34によりそれぞれル
ーフミラーアレイ15の底面15ａ側から光軸方向基準面20
Ｂのある光軸方向Ｂ側に、および絞り板16を直交方向基
準面20Ｃのある直交方向Ｃ側に付勢され、ルーフミラー
レンズアレイ18はそれぞれ光軸方向基準面20Ｂおよび直
交方向基準面20Ｃに圧接され精度よく位置決めされる。
ルーフミラーレンズアレイ18はハウジング20内に挿入す
るのみであり、位置決め作業がきわめて迅速にできる。When the three-piece set roof mirror lens array 18 is inserted into the housing 20 in the arrangement direction A while being in contact with the leaf springs 33 and the leaf springs 34, the roof mirror lens array 18 becomes the leaf spring 33 and the leaf springs. 34, the optical axis direction reference surface 20 from the bottom surface 15a side of the roof mirror array 15 respectively.
B, and the diaphragm plate 16 is urged toward the orthogonal direction C with the orthogonal reference plane 20C, and the roof mirror lens array 18 is moved to the optical axis reference plane 20B and the orthogonal reference plane 20C, respectively. And is positioned with high accuracy.
Since the roof mirror lens array 18 is only inserted into the housing 20, the positioning operation can be performed very quickly.
【００２９】図２（ａ）（ｂ）は本発明の請求項１、４
に係る等倍結像素子構造の第３実施例を示す図であり、
第１実施例と同じ符号には同じ符号をつける。図２
（ａ）に示す等倍結像素子構造41では、ハウジング内に
ハウジング20内部から絞り板16側に開口し配列方向Ａと
平行に貫通する係合孔42と、係合孔42に係合する突起43
を絞り板16に設けた場合である。係合孔42は断面Ｔ字状
で断面長方形の大きい頭部孔42ａと、絞り板16側に開口
する頚部孔42ｂとを有している。突起43は、断面Ｔ字状
で配列方向Ａ方向に連続または不連続に（この実施例で
は連続に）形成され、断面長方形状の頭部43ａと、絞り
板16に連なる頚部43ｂとを有している。直交方向圧接手
段26は頚部孔42ｂの直交方向Ｃの頚孔長ａ1 を、頚部43
ｂの直交方向Ｃの頚長ａ2 以上の長さにする、すなわ
ち、ａ1 ≧ａ2 の関係とすることにより構成されてい
る。FIGS. 2A and 2B show claims 1 and 4 of the present invention.
FIG. 9 is a diagram showing a third embodiment of the unit-size imaging element structure according to the present invention;
The same reference numerals are given to the same reference numerals as in the first embodiment. FIG.
In the same-magnification imaging element structure 41 shown in (a), an engagement hole 42 that opens in the housing from the inside of the housing 20 toward the diaphragm plate 16 and penetrates in parallel with the arrangement direction A, and engages with the engagement hole 42. Protrusion 43
Is provided on the aperture plate 16. The engagement hole 42 has a large head hole 42a having a T-shaped cross section and a rectangular cross section, and a neck hole 42b opening to the diaphragm plate 16 side. The protrusion 43 has a T-shaped cross section and is formed continuously or discontinuously (continuously in this embodiment) in the arrangement direction A, and has a head 43a having a rectangular cross section and a neck 43b connected to the diaphragm plate 16. ing. The orthogonal pressing means 26 determines the neck length a 1 in the orthogonal direction C of the neck hole 42 b by the neck 43.
b orthogonal to the neck length a 2 or more the length in the direction C, i.e., it is composed by a relation of a 1 ≧ a 2.
【００３０】光軸方向圧接手段23は光軸方向基準面20Ｂ
から頚部孔42ｂの光軸方向基準面20Ｂから遠い開口縁42
ｃまでの開口距離ｂ1 を、開口縁42ｃに対応する頚部43
ｂの対応面43ｃからルーフミラーレンズアレイ18の光軸
方向Ｂの側面18ａまでの突起距離ｂ2 より小さくする、
すなわち、ｂ1 ≦ｂ2 の関係とすることにより構成され
ている。ここに、頚部孔42ｂの光軸方向Ｂの開口幅Ｃ1
は頚部43ｂの光軸方向Ｂの幅Ｃ2 より大きくなされてい
る。The optical axis direction pressing means 23 is provided with an optical axis direction reference surface 20B.
Edge 42 of the neck hole 42b from the optical axis direction reference plane 20B
The opening distance b 1 to c, corresponding to the opening edge 42c neck 43
smaller than the projection distance b 2 from b the corresponding surface 43c to the side surface 18a of the optical axis B of the roof mirror lens array 18,
That is, it is configured by the relationship of b 1 ≦ b 2 . Here, an opening width C 1 of the neck hole 42b in the optical axis direction B is provided.
It is made larger than the width C 2 of the optical axis B of the neck 43b.
【００３１】３点セットされたルーフミラーレンズアレ
イ18が突起43を係合孔42に係合させながらハウジング20
内に挿入されると、頚部孔42ｂの頚孔長ａ1 が頚部43ｂ
の頚長ａ2 以上の長さであるので、突起43の頭部43ａの
アゴ43ｄが係合孔42の段差42ｄに係合して、突起43は長
さの差に対応した力でハウジング20側に引きつけられ、
ルーフミラーレンズアレイ18が直交方向基準面20Ｃに圧
接され位置決めされる。The roof mirror lens array 18 set at three points engages the housing 43 while engaging the projection 43 with the engagement hole 42.
When inserted within, neck hole length a 1 of the neck hole 42b is neck 43b
Since in cervical length a 2 or more in length, jaw 43d of the head 43a of the projection 43 is engaged with the 42d step of the engaging hole 42, the housing 20 with force projection 43 corresponding to the difference in length Attracted to the side,
The roof mirror lens array 18 is pressed against the orthogonal reference plane 20C and positioned.
【００３２】また、同様に、開口距離ｂ1 が突起距離ｂ
2 より小さい分だけ、ルーフミラーレンズアレイ18の光
軸方向Ｂの側面18ａが光軸方向基準面20Ｂに圧接され位
置決めされる。図２（ｃ）は、本発明に係る等倍結像素
子構造の第４実施例を示す図であり、第１実施例に同じ
構成には同じ符号をつける。図２（ｃ）に示す等倍結像
素子構造51は、直交方向圧接手段26に前述の第１実施例
と同様に直交ネジ27を用い、光軸方向圧接手段23に前述
の第２実施例と同様に板バネ33を用いて圧接しルーフミ
ラーレンズアレイ18の位置決めをした場合である。作
用、効果はそれぞれ前述と同じである。Similarly, the opening distance b 1 is equal to the projection distance b.
The side surface 18a in the optical axis direction B of the roof mirror lens array 18 is pressed against the optical axis direction reference surface 20B and positioned by an amount smaller than 2 . FIG. 2C is a view showing a fourth embodiment of the unit-magnification imaging element structure according to the present invention, and the same reference numerals are given to the same components as in the first embodiment. 2 (c) uses an orthogonal screw 27 for the orthogonal direction pressure contact means 26 as in the first embodiment described above, and uses the above-described second embodiment for the optical axis direction pressure contact means 23. In this case, the roof mirror lens array 18 is positioned by being pressed against using the leaf spring 33 in the same manner as in FIG. The operation and effect are the same as those described above.
【００３３】なお、本発明では、前述の第４実施例の光
軸方向圧接手段23の板バネ33の代りに、例えば、ルーフ
ミラーアレイ15とルーフミラーアレイ15に対向するハウ
ジング20とに第３実施例に用いた係合孔42と突起43の係
合構造を用い、開口距離ｂ1 と突起距離ｂ2 において、
ｂ1 ≦ｂ2 の関係を用いてもよい。図２（ｄ）は本発明
に係る等倍結像素子構造の第５実施例を示す図であり、
第１実施例と同じ構成には同じ符号をつける。図２
（ｄ）に示す等倍結像素子構造61は、直交方向圧接手段
26に係合孔42と突起43との係合構造で、頚孔長ａ1 と頚
長ａ2 において、ａ≧ａ2 の関係を用い、光軸方向圧接
手段23に板バネ33を用いた場合である。作用、効果はそ
れぞれ前述の第３実施例および第２実施例と同じであ
る。In the present invention, instead of the leaf spring 33 of the optical axis direction pressure contact means 23 of the fourth embodiment, for example, the roof mirror array 15 and the housing 20 opposed to the roof mirror array 15 are provided with a third. Using the engagement structure of the engagement hole 42 and the projection 43 used in the embodiment, at the opening distance b 1 and the projection distance b 2 ,
The relationship of b 1 ≦ b 2 may be used. FIG. 2D is a view showing a fifth embodiment of the unit-size imaging element structure according to the present invention.
The same components as those in the first embodiment are denoted by the same reference numerals. FIG.
The same-magnification imaging element structure 61 shown in FIG.
26 is an engagement structure of an engagement hole 42 and a projection 43, and a plate spring 33 is used as the optical axis direction pressure contact means 23 using a relationship of a ≧ a 2 in a neck hole length a 1 and a neck length a 2 . Is the case. The operation and effect are the same as those of the third embodiment and the second embodiment, respectively.
【００３４】なお、本発明においては、直交方向圧接手
段26に第３実施例に用いた係合孔42と突起43との係合構
造で、頚孔長ａ1 と頚長ａ2 において、ａ1 ≧ａ2 の関
係を用い、光軸方向圧接手段23に第１実施例に用いた軸
ネジ24を用いてもよい。また、本発明においては、直交
方向圧接手段26に前述の第２実施例の板バネ34を用い、
光軸方向圧接手段23に第１実施例の軸ネジ24を用いても
よい。[0034] In the present invention, in the engagement structure of the engagement hole 42 and the projection 43 used in the third embodiment in a direction perpendicular pressing mechanism 26, in Keianacho a 1 and Keicho a 2, a The axial screw 24 used in the first embodiment may be used for the optical axis direction pressure contact means 23 using the relationship of 1 ≧ a 2 . Further, in the present invention, the leaf spring 34 of the above-described second embodiment is used for the orthogonal direction pressure contact means 26,
The shaft screw 24 of the first embodiment may be used for the optical axis direction pressure contact means 23.
【００３５】さらにまた、本発明においては、直交方向
圧接手段26に第２実施例の板バネ34を用い、光軸方向圧
接手段23に第３実施例の係合孔42と突起43の係合構造を
用い、開口距離ｂ1 と突起距離ｂ2 において、ｂ1 ≦ｂ
2 の関係を用いてもよい。図３は本発明の請求孔１、４
〜８に係る等倍結像素子構造の第６実施例を示す図であ
り、図１（ｂ）に示す第２実施例と同じ構成には同じ符
号をつける。Further, in the present invention, the leaf spring 34 of the second embodiment is used for the orthogonal pressing means 26, and the engaging hole 42 and the projection 43 of the third embodiment are used for the optical axial pressing means 23. Using the structure, at the opening distance b 1 and the projection distance b 2 , b 1 ≦ b
The relationship of 2 may be used. FIG. 3 shows claim holes 1 and 4 of the present invention.
FIG. 13 is a view showing a sixth embodiment of the unit-size imaging element structure according to the first to eighth embodiments, and the same components as those in the second embodiment shown in FIG.
【００３６】図３に示す等倍結像素子構造71は、レンズ
アレイ13、絞り板16およびルーフミラーアレイ15のうち
のルーフミラーアレイ15の底板15ａに、ハウジング20の
基準面20Ｂに対向するハウジング20の対向内面20Ｄ側に
突出し、対向内面20Ｄに当接し弾性変形および塑性変形
可能に底板15ａに一体的に形成された外表部である複数
の底部突起73が底板15ａの全面にほぼ均等に分布して設
けられている。底部突起73はルーフミラーアレイ15に一
体的に射出成形等で成形加工され形成されたものであ
り、図３（ｃ）に示すように、断面山形で先端部73ａが
細く塑性変形可能で基部73ｂが太く、弾性変形が可能で
ある。The same-magnification imaging element structure 71 shown in FIG. 3 includes a housing facing the reference surface 20 B of the housing 20 on the bottom plate 15 a of the roof mirror array 15 of the lens array 13, the aperture plate 16 and the roof mirror array 15. A plurality of bottom projections 73, which are outer surfaces integrally formed on the bottom plate 15a so as to protrude toward the opposed inner surface 20D of the 20 and abut on the opposed inner surface 20D to be elastically and plastically deformable, are substantially evenly distributed on the entire surface of the bottom plate 15a. It is provided. The bottom projection 73 is formed integrally with the roof mirror array 15 by injection molding or the like, and as shown in FIG. 3 (c), has a mountain-shaped cross section and a thin tip portion 73a that can be plastically deformed and has a base portion 73b. Is thick and can be elastically deformed.
【００３７】また、レンズアレイ13、絞り板16およびル
ーフミラーアレイ15のうちの絞り板16の側壁16ａに、ハ
ウジング20の基準面20Ｃに対向するハウジング20の対向
内面20Ｅ側に突出し、対向内面20Ｅに当接し弾性変形お
よび塑性変形可能に側壁16ａに一体的に形成された外表
部である複数の側部突起75が側壁16ａの全面にほぼ均等
分布して設けられている場合である。側部突起75は絞り
板16に一体的に射出成形等で成形加工され形成されたも
のであり、図３（ｂ）、（ｄ）に示すように、断面山形
で先端部75ａが細く、塑性変形可能で、基部75ｂが太く
弾性変形が可能である。The lens array 13, the diaphragm plate 16, and the side wall 16a of the diaphragm plate 16 of the roof mirror array 15 protrude toward the facing inner surface 20E of the housing 20 facing the reference surface 20C of the housing 20, and are opposed to the facing inner surface 20E. In this case, a plurality of side projections 75 as outer surfaces integrally formed on the side wall 16a so as to be elastically and plastically deformable in contact with the side wall 16a are provided substantially uniformly over the entire surface of the side wall 16a. The side projections 75 are formed integrally with the aperture plate 16 by injection molding or the like. As shown in FIGS. 3B and 3D, the end portions 75a have a mountain-shaped cross section and a thin tip portion 75a. It can be deformed, and the base portion 75b is thick and can be elastically deformed.
【００３８】等倍結像素子構造71では、ルーフミラーア
レイ15が底板15ａに一体的に形成された複数の底部突起
73を有しているとともに、絞り板16が側壁16ａに一体的
に形成された複数の側部突起75を有しいるので、ルーフ
ミラーアレイ15、絞り板16およびレンズアレイ13があら
かじめ互いに位置決めし固定したルーフミラーレンズア
レイ18をハウジング20内に挿入すると、底部突起73の先
端部73ａは対向内面20Ｄに当接して塑性変形するととも
に、基部73ｂは弾性変形し、この弾性変形に対応した付
勢力を対向内面20Ｄに対する反力としてルーフミラーア
レイ15を基準面20Ｂ側に付勢する。また、同時に、側部
突起75の先端部75ａは対向内面20Ｅに当接して、図３
（ｅ）に示すように、塑性変形するとともに、基部75ｂ
は弾性変形し、この弾性変形に対応して付勢力を対向内
面20Ｅに対する反力として、絞り板16を基準面20Ｃ側に
付勢する。In the unit magnification imaging element structure 71, the roof mirror array 15 has a plurality of bottom projections formed integrally with the bottom plate 15a.
73, and the diaphragm plate 16 has a plurality of side projections 75 integrally formed on the side wall 16a, so that the roof mirror array 15, the diaphragm plate 16 and the lens array 13 are positioned with respect to each other in advance. When the fixed roof mirror lens array 18 is inserted into the housing 20, the distal end portion 73a of the bottom projection 73 comes into contact with the opposing inner surface 20D and is plastically deformed, and the base portion 73b is elastically deformed. As a reaction force against the opposing inner surface 20D to bias the roof mirror array 15 toward the reference surface 20B. At the same time, the distal end portion 75a of the side protrusion 75 contacts the opposing inner surface 20E, and as shown in FIG.
(E) As shown in FIG.
Is elastically deformed, and urges the diaphragm plate 16 toward the reference surface 20C with the urging force as a reaction force against the opposing inner surface 20E corresponding to the elastic deformation.
【００３９】ルーフミラーアレイ15、絞り板16およびレ
ンズアレイ13がピン17により一体的に固定されルーフミ
ラーレンズアレイ18を構成しているので、ルーフミラー
レンズアレイ18は基準面20Ｂ側および基準面20Ｃ側に付
勢され、基準面20Ｂ側および基準面20Ｃに密着してハウ
ジング20内に高精度で位置決めされる。等倍結像素子構
造71では、底部突起73がルーフミラーアレイ15に一体成
形加工され、側部突起75が絞り板16に一体成形加工され
て形成されているので、部品点数が第２実施例より低減
でき、組立工数が低減でき、製造コストが大幅に低減で
きる。The roof mirror array 15, the diaphragm plate 16, and the lens array 13 are integrally fixed by pins 17 to form a roof mirror lens array 18. Therefore, the roof mirror lens array 18 is provided on the reference surface 20B side and the reference surface 20C. And is positioned in the housing 20 with high precision in close contact with the reference surface 20B and the reference surface 20C. In the same-magnification imaging element structure 71, since the bottom projection 73 is formed integrally with the roof mirror array 15 and the side projection 75 is formed integrally with the aperture plate 16, the number of parts is reduced in the second embodiment. The number of assembly steps can be reduced, and the manufacturing cost can be reduced significantly.
【００４０】また、底部突起73および側部突起75がそれ
ぞれ先端部73ａ、75ａが塑性変形、基部73ｂ、75ｂが弾
性変形して付勢力を発生するので、ルーフミラーレンズ
アレイ18には常に付勢力が働き、ルーフミラーレンズア
レイ18は基準面20Ｂ、基準20Ｃに密着し、レンズアレイ
13、ルーフミラーアレイ15、絞り板16のソリやタワミを
確実に矯正し、位置決めできる。Further, since the bottom projection 73 and the side projection 75 each generate a biasing force by the plastic deformation of the tip portions 73a and 75a and the elastic deformation of the base portions 73b and 75b, the biasing force is always applied to the roof mirror lens array 18. Works, the roof mirror lens array 18 is in close contact with the reference surface 20B and reference 20C, and the lens array
13. The warp and deflection of the roof mirror array 15 and the aperture plate 16 can be reliably corrected and positioned.
【００４１】また、底部突起73が底板15ａの全面にほぼ
均等に分布して設けられているので、付勢力はルーフミ
ラーレンズアレイ18をほぼ均等に基準面20Ｂ側に付勢
し、ソリやタワミの矯正や位置決めをさらに高精度に実
施する。また、側部突起75が側壁16ａの全面に均等に設
けられているので、付勢力はルーフミラーレンズアレイ
18を均等に基準面20Ｃ側に付勢し、ソリやタワミの矯正
や位置決めをさらに高精度に実施する。Further, since the bottom projections 73 are provided almost uniformly distributed over the entire surface of the bottom plate 15a, the biasing force biases the roof mirror lens array 18 almost evenly to the reference surface 20B side, and warp or warp. Correction and positioning are performed with higher accuracy. In addition, since the side projections 75 are uniformly provided on the entire surface of the side wall 16a, the biasing force is reduced by the roof mirror lens array.
18 is evenly urged to the reference surface 20C side to perform warping and deflection correction and positioning with higher accuracy.
【００４２】なお、前述の実施例においては、側部突起
75は断面山形形状の場合について説明したが、本発明で
はこの実施例に限らず、側部突起75は、図４（ａ）に示
すように、絞り板16の側壁16ａの長手方向に間隔を開け
て配置したバネ体76であってもよいし、また、図４
（ｂ）に示すように、絞り板16の側壁16ａの光軸方向Ｂ
に平行な断面三角形状の三角突起77を側壁16ａの長手方
向にほぼ等間隔に配置したものであってもよい。In the above-described embodiment, the side projection is used.
Although 75 has been described in the case of a mountain-shaped cross section, the present invention is not limited to this embodiment, and the side projections 75 are spaced apart in the longitudinal direction of the side wall 16a of the aperture plate 16, as shown in FIG. The spring body 76 may be open and arranged, or
As shown in (b), the optical axis direction B of the side wall 16a of the diaphragm plate 16
May be arranged at substantially regular intervals in the longitudinal direction of the side wall 16a.
【００４３】また、前述の実施例においては、底部突起
73は断面山形形状の場合について説明したが、本発明で
は、この実施例に限らず、底部突起73は図５に示すよう
に、ルーフミラーアレイ15の底板15ａの長手方向に長い
バネ体83を２列にかつほぼ等間隔に配置したものであっ
てもよい。In the above embodiment, the bottom projection
Although the case 73 has been described as having a mountain-shaped cross section, the present invention is not limited to this embodiment, and the bottom projection 73 may be a spring body 83 long in the longitudinal direction of the bottom plate 15a of the roof mirror array 15 as shown in FIG. They may be arranged in two rows and at substantially equal intervals.
【００４４】[0044]
【発明の効果】以上説明したように、請求項１記載の発
明によれば、ハウジングの内面にルーフミラーレンズア
レイの光軸方向Ｂの位置を決める光軸方向基準面および
直交方向Ｃの位置を決める直交方向基準面を設け、ま
た、ルーフミラーレンズアレイの光軸方向圧接手段およ
び直交方向圧接手段を設けることにより、ルーフミラー
レンズアレイのハウジング内の位置決め精度を高め、結
像精度を大幅に向上することができる。As described above, according to the first aspect of the present invention, the optical axis direction reference plane for determining the position of the roof mirror lens array in the optical axis direction B and the position in the orthogonal direction C are provided on the inner surface of the housing. By providing the orthogonal reference plane to be determined, and by providing the optical axis direction pressure contact means and orthogonal direction pressure contact means of the roof mirror lens array, the positioning accuracy of the roof mirror lens array in the housing is increased, and the imaging accuracy is greatly improved. can do.
【００４５】また、請求項２〜４記載の発明によれば、
ネジ、板バネ、かみ合せ等によりハウジングの内面のそ
れぞれの基準面にルーフミラーレンズアレイを圧接させ
るのみで無調整に位置決めでき、ハウジングへの組み付
けが簡単で迅速に精度よくできる。また、請求項５記載
の発明によれば、底部突起73をルーフミラーアレイ15
に、また、側部突起75を絞り板16に一体成形加工するこ
とにより、部品点数が減じ、組立工数および製造コスト
を大幅に低減できる。According to the second to fourth aspects of the present invention,
By simply pressing the roof mirror lens array against the respective reference surfaces on the inner surface of the housing by means of screws, leaf springs, meshing, etc., positioning can be performed without adjustment, and assembly to the housing can be performed simply, quickly and accurately. According to the fifth aspect of the present invention, the bottom projection 73 is attached to the roof mirror array 15.
In addition, since the side projections 75 are formed integrally with the aperture plate 16, the number of parts is reduced, and the number of assembly steps and manufacturing costs can be significantly reduced.
【００４６】また、請求項６記載の発明によれば、底部
突起73および側部突起75のそれぞれの先端部が塑性変形
し、基部が弾性変形するようにすることにより、ルーフ
ミラーレンズアレイ18を常に基準面20Ｂおよび基準面20
Ｃに密着させ、ソリやタワミを確実に矯正できる。ま
た、請求項７および請求項８記載の発明によれば、底部
突起73を底板15ａの全面にほぼ均等に分布して設け、か
つ、側部突起75を側壁16ａの全面にほぼ均等に分布して
設けることにより、ルーフミラーレンズアレイ18の基準
面20Ｂおよび基準面20Ｃ側への付勢力をほぼ均等にし
て、ルーフミラーレンズアレイ18のソリおよびタワミの
矯正をさらに確実にし高精度に位置決めできる。According to the sixth aspect of the present invention, the roof mirror lens array 18 is formed by plastically deforming the tip of each of the bottom projection 73 and the side projection 75 and elastically deforming the base. Always reference plane 20B and reference plane 20
C can be firmly corrected by firmly contacting with C. According to the seventh and eighth aspects of the present invention, the bottom projections 73 are provided substantially uniformly on the entire surface of the bottom plate 15a, and the side projections 75 are substantially uniformly distributed on the entire surface of the side wall 16a. With this arrangement, the biasing force of the roof mirror lens array 18 toward the reference surface 20B and the reference surface 20C is made substantially uniform, so that the warpage and deflection of the roof mirror lens array 18 can be more reliably corrected and the positioning can be performed with high accuracy.
【図１】本発明における等倍結像素子構造の実施例を示
す図で、（ａ）はその第１実施例の断面図、（ｂ）はそ
の第２実施例の断面図である。FIGS. 1A and 1B are diagrams showing an embodiment of a unit-size imaging element structure according to the present invention, wherein FIG. 1A is a cross-sectional view of a first embodiment, and FIG. 1B is a cross-sectional view of a second embodiment.
【図２】本発明における等倍結像素子構造の実施例を示
す図で、（ａ）はその第３実施例の断面図、（ｂ）は
（ａ）の要部拡大断面図、（ｃ）はその第４実施例の断
面図、（ｄ）はその第５実施例の断面図である。FIGS. 2A and 2B are views showing an embodiment of the same-magnification imaging element structure according to the present invention, wherein FIG. 2A is a cross-sectional view of the third embodiment, FIG. () Is a sectional view of the fourth embodiment, and (d) is a sectional view of the fifth embodiment.
【図３】本発明の請求項５〜８に係る等倍結像素子構造
の第６実施例を示す図で、（ａ）はその一部斜視図、
（ｂ）はその絞り板の一部斜視図、（ｃ）はそのルーフ
ミラーアレイの底板を示す一部斜視図、（ｄ）はその要
部を示す断面図、（ｅ）はその作用を示す断面図であ
る。FIG. 3 is a view showing a sixth embodiment of the unit-size imaging element structure according to claims 5 to 8 of the present invention, wherein FIG.
(B) is a partial perspective view of the diaphragm plate, (c) is a partial perspective view showing the bottom plate of the roof mirror array, (d) is a cross-sectional view showing a main part thereof, and (e) shows its operation. It is sectional drawing.
【図４】図３に示す等倍結像素子構造の絞り板の他の実
施例を示す図で、（ａ）はそのバネ体を示す一部斜視
図、（ｂ）はその三角突起を示す一部斜視図である。4A and 4B are views showing another embodiment of the aperture plate having the same-magnification imaging element structure shown in FIG. 3, wherein FIG. 4A is a partial perspective view showing a spring body, and FIG. It is a partial perspective view.
【図５】図３に示す等倍結像素子構造のルーフミラーア
レイの他の実施例の底板を示す一部斜視図である。5 is a partial perspective view showing a bottom plate of another embodiment of the roof mirror array having the same-magnification imaging element structure shown in FIG. 3;
【図６】従来の等倍結像素子構造を示す図で、（ａ）は
その一部を除去した斜視図、（ｂ）はその光路を示す断
面図である。6A and 6B are views showing a conventional unit-size imaging element structure, in which FIG. 6A is a perspective view with a part thereof removed, and FIG. 6B is a cross-sectional view showing an optical path thereof.
11、31、41、51、61 等倍結像素子構造 12 レンズ 13 レンズアレイ 15 ルーフミラーアレイ 16 絞り板 18 ルーフミラーレンズアレイ 20 ハウジング 20Ｂ 光軸方向基準面 20Ｃ 直交方向基準面 20ａ 貫通孔 20ｂ 貫通孔 23 光軸方向圧接手段 24 軸ネジ 26 直交方向圧接手段 27 直交ネジ 33 板バネ（光軸方向バネ部材） 34 板バネ（直交方向バネ部材） 42 係合孔 42ａ 頭部孔 42ｂ 頚部孔 43 突起 43ａ 頭部 43ｂ 頚部 73 底部突起 75 側部突起 76 バネ体 77 三角突起 83 バネ体 ａ1 頚孔長 ａ2 頚長 ｂ1 開口距離 ｂ2 突起距離 Ａ 配列方向 Ｂ 光軸方向 Ｃ 直行方向11, 31, 41, 51, 61 1: 1 imaging element structure 12 lens 13 lens array 15 roof mirror array 16 aperture plate 18 roof mirror lens array 20 housing 20B optical axis direction reference plane 20C orthogonal direction reference plane 20a through hole 20b penetrating Hole 23 Optical axis direction pressure contact means 24 Shaft screw 26 Orthogonal direction pressure contact means 27 Orthogonal screw 33 Leaf spring (optical axis direction spring member) 34 Leaf spring (orthogonal direction spring member) 42 Engagement hole 42a Head hole 42b Neck hole 43 Projection 43a Head 43b Neck 73 Bottom projection 75 Side projection 76 Spring body 77 Triangular projection 83 Spring body a 1 Neck hole length a 2 Neck length b 1 Opening distance b 2 Protrusion distance A Arrangement direction B Optical axis direction C Direction direction
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡部 順 東京都大田区中馬込１丁目３番６号 株 式会社リコー内 (72)発明者 沢田 清孝 東京都大田区中馬込１丁目３番６号 株 式会社リコー内 (56)参考文献 特開 平４−78815（ＪＰ，Ａ) 特開 昭58−44416（ＪＰ，Ａ) 実開 昭64−49813（ＪＰ，Ｕ) 実開 昭62−63716（ＪＰ，Ｕ) 実開 昭61−123946（ＪＰ，Ｕ) 実開 昭55−123946（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G02B 27/18 G03B 27/50 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Jun Watanabe 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. (72) Inventor Kiyotaka Sawada 1-3-6 Nakamagome, Ota-ku, Tokyo Ricoh Co., Ltd. (56) References JP-A-4-78815 (JP, A) JP-A-58-44416 (JP, A) JP-A 64-49813 (JP, U) JP-A 62-63716 ( JP, U) JP-A 61-123946 (JP, U) JP-A 55-123946 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) G02B 27/18 G03B 27/50
Claims (8)
のレンズアレイと、光束を絞る絞り板と、ルーフミラー
アレイと、をあらかじめ互いに位置決めし固定したルー
フミラーレンズアレイをハウジング内に収容し組み付け
た等倍結像素子構造であって、前記ハウジングの内面に
前記ルーフミラーレンズアレイの光軸方向の側面に接し
ルーフミラーレンズアレイの光軸方向の位置を決める光
軸方向基準面と、前記ルーフミラーレンズアレイの光軸
方向および配列方向に直交する直交方向の側面に接しル
ーフミラーレンズアレイの直交方向の位置を決める直交
方向基準面と、を設け、ルーフミラーレンズアレイを前
記光軸方向基準面に圧接し固定する光軸方向圧接手段
と、ルーフミラーレンズアレイを前記直交方向基準面に
圧接し固定する直交方向圧接手段と、を備えたことを特
徴とする等倍結像素子構造。A roof mirror lens array in which a long lens array in which a plurality of lenses are arranged in an arrangement direction, an aperture plate for narrowing a light beam, and a roof mirror array are previously positioned and fixed to each other, and are housed in a housing. An optical axis direction reference surface which is in contact with a side surface of the roof mirror lens array in the optical axis direction on the inner surface of the housing and determines a position of the roof mirror lens array in the optical axis direction, wherein An orthogonal reference surface which is in contact with a side surface in a direction orthogonal to the optical axis direction and the arrangement direction of the roof mirror lens array and which determines a position in the orthogonal direction of the roof mirror lens array. An optical axis direction pressing means for pressing and fixing the surface, and an orthogonal direction for pressing and fixing the roof mirror lens array to the orthogonal direction reference surface. And a direct pressure contact means.
な前記ハウジング壁部に設けた貫通孔を通して、前記ル
ーフミラーレンズアレイにネジ込みネジ止めする少なく
とも１つ以上の軸ネジを有し、前記直交方向圧接手段は
直交方向に垂直な前記ハウジング壁部に設けた貫通孔を
通して前記絞り板にネジ込みネジ止めする少なくとも１
つ以上の直交ネジを有することを特徴とする請求項１記
載の等倍結像素子構造。2. The optical axis direction pressure contact means has at least one or more axial screws which are screwed into the roof mirror lens array through through holes provided in the housing wall perpendicular to the optical axis direction. At least one of the orthogonal pressing means is screwed into the diaphragm plate through a through hole provided in the housing wall perpendicular to the orthogonal direction.
The unit-size imaging element structure according to claim 1, comprising at least one orthogonal screw.
ーレンズアレイの光軸方向の側面と前記ハウジングとの
間に介装された光軸方向バネ部材であり、前記直交方向
圧接手段は前記ルーフミラーレンズアレイの直交方向の
側面と前記ハウジングとの間に介装された直交方向バネ
部材であることを特徴とする請求項１記載の等倍結像素
子構造。3. The optical axis direction pressure contact means is an optical axis direction spring member interposed between the side surface of the roof mirror lens array in the optical axis direction and the housing, and the orthogonal direction pressure contact means is provided on the roof. 2. The unit magnification imaging element structure according to claim 1, wherein the orthogonal magnification spring member is interposed between the side surface of the mirror lens array in the orthogonal direction and the housing.
ハウジング内部から絞り板側に開口し断面Ｔ字状で前記
配列方向と平行に貫通し頭部孔と頚部孔を有する係合孔
と、該係合孔に係合し断面Ｔ字状で前記配列方向と平行
に連続または不連続に形成され頭部と頚部からなる突出
した突起を有する絞り板と、を備え、前記直交方向圧接
手段は前記頚部孔の直交方向頚孔長ａ1 を前記頚部の直
交方向の頚長ａ2 以上の長さにすることにより構成し、
前記光軸方向圧接手段は、前記光軸方向基準面から前記
頚部孔の基準面から遠い開口縁までの開口距離ｂ1 を前
記開口縁に対応する前記頚部の対応面からルーフミラー
レンズアレイの光軸方向の側面までの突起距離ｂ2 より
小さく構成したことを特徴とする請求項１記載の等倍結
像素子構造。4. An engaging hole having a head hole and a neck hole, which is opened from the inside of the housing facing the diaphragm plate to the diaphragm plate side and penetrates in a T-shaped cross section in parallel with the arrangement direction, and An aperture plate which is engaged with the engagement hole and has a T-shaped cross-section and is formed continuously or discontinuously in parallel with the arrangement direction and has a protruding projection comprising a head and a neck, and the orthogonal-direction pressing means comprises: The neck length a 1 in the orthogonal direction of the cervical hole is configured to be longer than the neck length a 2 in the orthogonal direction of the cervix,
The optical axis direction pressing means, the light of the roof mirror lens array from a corresponding surface of the neck corresponding to opening distance b 1 from the optical axis direction reference surface to the far opening edge from the reference plane of the neck hole in the opening edge 2. A unit- magnification imaging element structure according to claim 1, wherein the projection distance is smaller than a projection distance b2 to the side surface in the axial direction.
向圧接手段は前記レンズアレイ、前記絞り板および前記
ルーフミラーアレイのいずれかの外表部が前記ハウジン
グの光軸方向基準面および直交方向基準面のそれぞれに
対向するハウジングの２つの対向内面に当接し、それぞ
れ光軸方向基準面側および直交方向基準面側に付勢力を
発生することを特徴とする請求項１記載の等倍結像素子
構造。5. The optical axis direction pressure contact means and the orthogonal direction pressure contact means are arranged such that any one of the lens array, the aperture plate, and the roof mirror array has an outer surface portion which is an optical axis direction reference surface and an orthogonal direction reference surface of the housing. 2. A unit-magnification imaging element structure according to claim 1, wherein said first and second housings abut against two opposing inner surfaces of said housing to generate urging forces on the optical axis direction reference surface side and the orthogonal direction reference surface side, respectively. .
記ルーフミラーアレイのいずれかの外表部は前記ハウジ
ングの光軸方向基準面および直交方向基準面のそれぞれ
に対向するハウジングの２つの対向内面に当接し、弾性
変形および塑性変形可能である部分を有することを特徴
とする請求項５記載の等倍結像素子構造。6. An outer surface of any one of the lens array, the diaphragm plate, and the roof mirror array abuts on two opposing inner surfaces of the housing which face the optical axis direction reference surface and the orthogonal direction reference surface, respectively. 6. The unit magnification imaging element structure according to claim 5, further comprising a portion which is in contact with and is capable of elastic deformation and plastic deformation.
ーアレイの底板の外表部に前記ハウジングの前記光軸方
向基準面に対向するハウジングの対向内面側に突出し対
向内面に当接し、弾性変形および塑性変形可能に底板に
一体的に形成された複数の底部突起を設けることを特徴
とする請求項５または６記載の等倍結像素子構造。7. The optical axis direction pressing means protrudes from the outer surface of the bottom plate of the roof mirror array to the inner surface of the housing opposite to the optical axis reference surface of the housing and abuts on the inner surface of the housing, thereby elastically deforming the housing. 7. The unit magnification imaging element structure according to claim 5, wherein a plurality of bottom projections formed integrally with the bottom plate so as to be plastically deformable are provided.
板の外表部に、前記ハウジングの前記直交方向基準面に
対向するハウジングの対向内面側に突出し対向内面に当
接し、弾性変形および塑性変形可能に側板に一体的に形
成された複数の側部突起を設けることを特徴とする請求
項５、６または７記載の等倍結像素子構造。8. The orthogonal pressing means protrudes from the outer surface of the side plate of the diaphragm plate to the inner surface of the housing facing the orthogonal reference surface of the housing and abuts on the inner surface of the housing, thereby causing elastic deformation and plastic deformation. 8. The unit magnification imaging element structure according to claim 5, wherein a plurality of side projections integrally formed on the side plate are provided as much as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04082562A JP3140834B2 (en) | 1991-04-12 | 1992-04-06 | 1x imaging element structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7940391 | 1991-04-12 | ||
| JP3-79403 | 1991-04-12 | ||
| JP04082562A JP3140834B2 (en) | 1991-04-12 | 1992-04-06 | 1x imaging element structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05107502A JPH05107502A (en) | 1993-04-30 |
| JP3140834B2 true JP3140834B2 (en) | 2001-03-05 |
Family
ID=26420427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04082562A Expired - Lifetime JP3140834B2 (en) | 1991-04-12 | 1992-04-06 | 1x imaging element structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3140834B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2607346A (en) * | 2021-06-04 | 2022-12-07 | Ideal Standard Int Nv | Clinical wash station |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5466411B2 (en) * | 2008-07-25 | 2014-04-09 | 日本板硝子株式会社 | Lens array unit and image reading apparatus |
| JP6146660B2 (en) * | 2013-05-15 | 2017-06-14 | 株式会社リコー | Optical apparatus, optical writing apparatus, and image forming apparatus |
-
1992
- 1992-04-06 JP JP04082562A patent/JP3140834B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2607346A (en) * | 2021-06-04 | 2022-12-07 | Ideal Standard Int Nv | Clinical wash station |
| GB2607346B (en) * | 2021-06-04 | 2023-12-13 | Ideal Standard Int Nv | Clinical wash station |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05107502A (en) | 1993-04-30 |
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