JPH0590420U - Mirror device - Google Patents
Mirror deviceInfo
- Publication number
- JPH0590420U JPH0590420U JP3420592U JP3420592U JPH0590420U JP H0590420 U JPH0590420 U JP H0590420U JP 3420592 U JP3420592 U JP 3420592U JP 3420592 U JP3420592 U JP 3420592U JP H0590420 U JPH0590420 U JP H0590420U
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- holding member
- leaf spring
- mirror surface
- holding
- 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
- Mounting And Adjusting Of Optical Elements (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
(57)【要約】
【目的】ミラーを保持部材に着脱する際に鏡面を損ない
にくく、鏡面が腐蝕しにくい、新規なミラー装置を提供
する。
【構成】保持部材２３，２５の係合部に形成された鏡面
態位設定用の支持部２３１，２３２，２５１にミラー２
１の裏面を当接させ、板バネ２７を保持部材係合部とミ
ラー表面との間に介設し、ミラー表面を板バネ２７によ
り面接触状態で押圧固定する。
(57) [Abstract] [Purpose] To provide a novel mirror device in which a mirror surface is less likely to be damaged when the mirror is attached to or detached from a holding member, and the mirror surface is not easily corroded. [Structure] The mirror 2 is attached to support portions 231, 232, 251 for setting the mirror surface state, which are formed on the engaging portions of the holding members 23, 25.
The back surface of the sheet 1 is brought into contact with the leaf spring 27, and the leaf spring 27 is interposed between the holding member engaging portion and the mirror surface, and the mirror surface is pressed and fixed by the leaf spring 27 in a surface contact state.
Description
【０００１】[0001]
この考案はミラー装置に関する。この考案は電子複写機の露光光学系や、原稿 読取装置の読取光学系に利用できる。 This invention relates to a mirror device. This invention can be used for the exposure optical system of an electronic copying machine and the reading optical system of a document reading device.
【０００２】[0002]
電子複写機の露光光学系や原稿読取装置の読取光学系には、しばしば、結像レ ンズによる結像光束の光路を屈曲させるために「ミラー装置」が用いられる。ミ ラー装置は通常、長方形形状のミラーの長手方向両端部を１対の保持部材で保持 した構造となっている。即ち、保持部材はミラーの長手方向端部に係合する係合 孔を有し、係合孔にはミラーの鏡面の態位を適正に設定するための支持部が形成 されており、ミラーは板バネにより上記支持部に押し当てられて、保持部材に固 定される。 A "mirror device" is often used in an exposure optical system of an electronic copying machine or a reading optical system of a document reading device in order to bend an optical path of an image forming light beam by an image forming lens. The mirror device usually has a structure in which both ends of a rectangular mirror in the longitudinal direction are held by a pair of holding members. That is, the holding member has an engaging hole that engages with the longitudinal end of the mirror, and the supporting hole for properly setting the mirror surface state of the mirror is formed in the engaging hole. It is pressed against the supporting portion by a leaf spring and fixed to the holding member.
【０００３】 従来、ミラーは、鏡面態位を正しく設定するため、鏡面側を支持部側にし、板 バネによる弾性力により鏡面を支持部に押しつけて固定されるのが一般的である が、このようなミラー保持方式には以下の如き問題があった。Conventionally, in order to correctly set the mirror surface position of a mirror, it is common that the mirror surface side is set to the support portion side and the mirror surface is pressed against the support portion by the elastic force of the leaf spring to be fixed. Such a mirror holding method has the following problems.
【０００４】 即ち、鏡面の態位を１義的に設定するには所謂３点支持が良く、このためミラ ーの表面側に当接する支持部は、ミラーとの当接部が尖った形状のものが多い。 このため支持部と鏡面の当接部において鏡面には強い圧力が作用する。ミラー鏡 面はアルミニウムの蒸着膜で形成されることが多いが、上記圧力の作用で例えば 反射膜の支持部との当接部に腐蝕が発生して経時的に周囲の鏡面部に広がる。That is, so-called three-point support is preferable for uniquely setting the posture of the mirror surface. Therefore, the support portion that abuts on the surface side of the mirror has a pointed contact portion with the mirror. There are many things. Therefore, a strong pressure acts on the mirror surface at the contact portion between the support portion and the mirror surface. The mirror mirror surface is often formed of an aluminum vapor-deposited film, but due to the above-mentioned pressure, for example, corrosion occurs in the contact portion of the reflective film with the support portion and spreads over time to the surrounding mirror surface portion.
【０００５】 また鏡面の清浄化等のためミラーを保持部材から取り外すとき（このとき保持 部材は複写装置等の内部に固定されていることが多い）は、上記板バネを外し、 係合孔からミラーを長手方向へ引き出す場合が多いが、このとき支持部の尖鋭な 先端部で鏡面を損なうことが多い。取り外したミラー保持部材に再度装着すると きも同様であり、ミラーの着脱が面倒な作業になり易い。When the mirror is removed from the holding member for cleaning the mirror surface (at this time, the holding member is often fixed inside the copying machine), the leaf spring is removed from the engaging hole. In many cases, the mirror is pulled out in the longitudinal direction, but at this time, the sharp tip of the support often damages the mirror surface. The same is true when reattaching the removed mirror holding member, and the attachment and detachment of the mirror tends to be a troublesome work.
【０００６】[0006]
この考案は上述した事情に鑑みてなされたものであって、保持部材に対する着 脱の際に鏡面を損ないにくく、鏡面が腐蝕しにくい、新規なミラー装置の提供を 目的としている。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a novel mirror device in which the mirror surface is less likely to be damaged when the holding member is attached and detached, and the mirror surface is not easily corroded.
【０００７】[0007]
この考案のミラー装置は、ミラーと、１対の保持部材と、複数の板バネとを有 する。 「ミラー」は、フロートガラスの片面に反射膜を形成してなり、長方形形状で ある。上記反射面を形成された側がミラー表面である。 「１対の保持部材」は、ミラーの長手方向端部に係合する係合孔を形成され、 ミラー長手方向端部を保持する。少なくとも一方の保持部材の係合孔は、ミラー の着脱の便宜のため貫通孔であることが望ましい。 「複数の板バネ」は、ミラーを保持部材に係止固定するのに用いられる。 The mirror device of this invention has a mirror, a pair of holding members, and a plurality of leaf springs. The “mirror” has a rectangular shape and is formed by forming a reflective film on one side of float glass. The side on which the reflective surface is formed is the mirror surface. The "pair of holding members" are formed with engagement holes that engage with the longitudinal ends of the mirror, and hold the mirror longitudinal ends. The engaging hole of at least one holding member is preferably a through hole for the convenience of attaching and detaching the mirror. The "plurality of leaf springs" are used for locking and fixing the mirror to the holding member.
【０００８】 この考案のミラー装置の特徴は、「各保持部材の係合部に形成された鏡面態位 設定用の支持部にミラーの裏面を当接させ、板バネを保持部材係合部とミラー表 面との間に介設し、ミラー表面を板バネにより面接触状態で押圧固定する」点に ある。なお、１対の保持部材に保持させるミラーは１枚に限らず、２枚以上でも よい。２枚以上のミラーを保持部材に保持させるときにも、各ミラーは上記特徴 に従って保持されることは言うまでもない。A feature of the mirror device of the present invention is that “a back surface of the mirror is brought into contact with a support portion for setting a mirror surface state formed in an engaging portion of each holding member, and a leaf spring is used as a holding member engaging portion. It is placed between the mirror surface and the surface of the mirror is pressed and fixed in surface contact with a leaf spring. " The number of mirrors held by the pair of holding members is not limited to one and may be two or more. Needless to say, even when two or more mirrors are held by the holding member, each mirror is held according to the above characteristics.
【０００９】[0009]
上記のように、この考案のミラー装置においては、ミラーとしてフロートガラ スの片面に反射膜を形成したものが用いられる。フロートガラスは、周知のよう に表裏面が極めて高い平行度を有し、厚みも高精度に制御できるから、ミラーの 裏面によりミラーの態位設定を行っても、ミラー表面の態位を極めて精度よく設 定することができる。 As described above, in the mirror device of the present invention, a float glass having a reflective film formed on one surface is used as the mirror. As is well known, float glass has extremely high parallelism on the front and back surfaces, and its thickness can also be controlled with high accuracy.Therefore, even if the mirror position is set on the back surface of the mirror, the position of the mirror surface is extremely accurate. Can be set well.
【００１０】 またミラー表面は板バネにより面接触で押圧されるから、板バネによる押圧部 の押圧力は接触面積に分散される。このため、鏡面の点状部分に高い圧力が掛か ることがない。Further, since the surface of the mirror is pressed by the leaf spring in surface contact, the pressing force of the pressing portion by the leaf spring is dispersed in the contact area. Therefore, high pressure is not applied to the spots on the mirror surface.
【００１１】[0011]
図３は電子複写機における露光光学系の１部を示している。複写されるべき原 稿０は原稿ガラス１２上に定置され、照明ランプ１４により図面に直交する方向 に長いスリット状に照明される。原稿０からの反射光束はミラー装置２０により 反射され、ダハ型のミラー装置３０により折り返されて図示されない結像レンズ へ導かれる。照明ランプ１４は図の右方へ所定の速度：Ｖで変位して原稿０を照 明走査する。このとき、ミラー装置２０は照明ランプ１４と一体的に、図の右方 へ速度：Ｖで変位し、ミラー装置３０は図の右方へ速度：Ｖ／２で変位する。 FIG. 3 shows a part of the exposure optical system in the electronic copying machine. The original 0 to be copied is placed on the original glass 12 and illuminated by a lighting lamp 14 in the form of a long slit in the direction orthogonal to the drawing. The reflected light beam from the document 0 is reflected by the mirror device 20, is folded back by the roof mirror device 30 and is guided to an image forming lens (not shown). The illumination lamp 14 is displaced rightward in the drawing at a predetermined speed: V to illuminate and scan the original 0. At this time, the mirror device 20 and the illumination lamp 14 are displaced rightward in the drawing at a speed of V, and the mirror device 30 is displaced rightward in the drawing at a speed of V / 2.
【００１２】 図１は、この考案を図３のミラー装置２０に適用した実施例を示している。図 １（Ａ）において符号２１で示すミラーは長方形形状のフロートガラス２１Ａの 片面に反射膜２１Ｂ（例えば、アルミニウムの薄膜）を形成してなる。FIG. 1 shows an embodiment in which the present invention is applied to the mirror device 20 of FIG. In FIG. 1A, a mirror indicated by reference numeral 21 is formed by forming a reflection film 21B (for example, a thin film of aluminum) on one surface of a rectangular float glass 21A.
【００１３】 符号２３，２５はミラー２１を保持する１対の保持部材を示す。これら保持部 材２３，２５はミラー２１の長手方向両端部に配備される。保持部材２３，２５ には「ミラーの長手方向端部に係合する係合孔」が形成されている。保持部材２ ３の係合孔には支持部２３１，２３２形成され、保持部材２５の係合孔には支持 部２５１が形成されている。Reference numerals 23 and 25 denote a pair of holding members for holding the mirror 21. These holding members 23 and 25 are arranged at both ends of the mirror 21 in the longitudinal direction. The holding members 23 and 25 have "engagement holes that engage with the longitudinal ends of the mirrors". Supporting portions 231 and 232 are formed in the engaging holes of the holding member 23, and supporting portions 251 are formed in the engaging holes of the holding member 25.
【００１４】 支持部２３１，２３２，２５１は尖った先端部を有し、これら先端部をミラー ２１の裏面に当接させる。これによりミラー裏面は３点支持で支持され、裏面の 態位が定まる。ミラー２１の鏡面を形成されたフロートガラス２１Ａの両面は高 度に平行であり、厚みも高精度に調整されている。従って、上記のようにして裏 面の態位を決定することで鏡面の態位を正しく設定することができる。The supporting portions 231, 232, 251 have sharp tip portions, and these tip portions are brought into contact with the back surface of the mirror 21. As a result, the back surface of the mirror is supported by three-point support, and the position of the back surface is determined. Both surfaces of the float glass 21A on which the mirror surface of the mirror 21 is formed are parallel to the height, and the thickness is adjusted with high accuracy. Therefore, by determining the posture of the back surface as described above, the posture of the mirror surface can be set correctly.
【００１５】 図１（Ｂ）はミラー２１の長手方向端部を保持部材２３の係合孔に嵌入させ、 ミラー２１の裏面を支持部２３１，２３２に当接させた状態を示す。ミラーの他 端部は保持部材２５の係合孔に嵌入され、ミラー裏面は支持部２５１に当接させ られる。FIG. 1B shows a state in which the longitudinal end portion of the mirror 21 is fitted into the engagement hole of the holding member 23 and the back surface of the mirror 21 is brought into contact with the support portions 231 and 232. The other end of the mirror is fitted into the engaging hole of the holding member 25, and the rear surface of the mirror is brought into contact with the supporting portion 251.
【００１６】 図１（Ｃ）は、図１（Ｂ）に示したミラー端部側の保持状態を示している。上 記係合孔の部分において、保持部材係合部（係合孔端部）とミラー２１の表面と の間に板バネ２７を介設し、ミラー表面を板バネ２７により面接触状態で押圧固 定する。保持部材２５による保持状態も同様である。板バネは、例えば保持部材 ２３側には１個、保持部材２５側には２個用いれば良い。FIG. 1C shows the holding state of the mirror end side shown in FIG. 1B. In the above engaging hole portion, a leaf spring 27 is provided between the holding member engaging portion (engagement hole end portion) and the surface of the mirror 21, and the mirror surface is pressed by the leaf spring 27 in a surface contact state. Fix. The holding state by the holding member 25 is also the same. For example, one leaf spring may be used on the holding member 23 side and two leaf springs may be used on the holding member 25 side.
【００１７】 図２は、図３に符号３０で示したダハ型のミラー装置に、この考案を適用した 実施例を示している。図２（Ａ）において符号３５は、２枚のミラー３１，３３ を鏡面同志が直交するようにして保持する１対の保持部材の片方を示している。 ミラー３１は、保持部材３５に形成された係合孔に長手方向端部を嵌入されてミ ラー裏面を支持部３５１に当接させ、係合部とミラー３１の表面との間に介設さ れた板バネ３７１，３７２により固定される。図示されない他方の保持部材にお いてミラー３１の他端部を保持する係合孔には、２つの支持部が形成され、こち ら側の端部は１個の板バネで固定される。FIG. 2 shows an embodiment in which the present invention is applied to the roof type mirror device shown by reference numeral 30 in FIG. In FIG. 2A, reference numeral 35 indicates one of a pair of holding members that holds the two mirrors 31, 33 so that their mirror surfaces are orthogonal to each other. The mirror 31 has a longitudinal end portion fitted in an engagement hole formed in the holding member 35 so that the back surface of the mirror abuts against the support portion 351 and is interposed between the engagement portion and the surface of the mirror 31. The leaf springs 371 and 372 are fixed. In the other holding member (not shown), two supporting portions are formed in the engaging hole that holds the other end of the mirror 31, and the end on this side is fixed by one leaf spring.
【００１８】 ミラー３３は、保持部材３５に形成された係合孔に長手方向端部を嵌入されて ミラー裏面を支持部３５３，３５５に当接させ、係合部とミラー３３の表面との 間に介設された板バネ３７３により固定される。図示されない他方の保持部材に おいてミラー３３の他端部を保持する係合孔には、１つの支持部が形成され、こ ちら側の端部は２個の板バネで固定される。The mirror 33 has a longitudinal end portion fitted in an engagement hole formed in the holding member 35 so that the rear surface of the mirror is brought into contact with the support portions 353 and 355, and the distance between the engagement portion and the surface of the mirror 33 is increased. It is fixed by a leaf spring 373 interposed in the. One supporting portion is formed in the engaging hole for holding the other end of the mirror 33 in the other holding member (not shown), and the end on this side is fixed by two leaf springs.
【００１９】 図２（Ｂ）は、同図（Ａ）に示す板バネ３７１等の形状を示している。この発 明の特徴の一端は、前述のようにミラーの表面側を板バネにより面積接触状態で 押圧する点にあるが、ミラー表面に当接する部分の板バネのエッジ部が鋭い場合 など、ミラー表面と板バネの接触状態を確実に面接触状態にしないと、上記エッ ジ部でミラー表面の反射膜を損なう虞れがある。そこで、この例では図示のよう に、板バネ３７１等の、ミラー表面に当接する部分を滑らかな凸面に形成した。 この凸面は、ミラー表面に当接すると若干変形して、ミラー面に確実に面接触す る。FIG. 2B shows the shape of the leaf spring 371 and the like shown in FIG. One of the features of the present invention is that the surface side of the mirror is pressed by the leaf spring in the area contact state as described above.However, when the edge of the leaf spring in contact with the mirror surface is sharp, If the contact state between the surface and the leaf spring is not surely brought into the surface contact state, the reflective film on the mirror surface may be damaged at the edge portion. Therefore, in this example, as shown in the figure, the portion of the leaf spring 371 or the like that comes into contact with the mirror surface is formed into a smooth convex surface. This convex surface is slightly deformed when it comes into contact with the mirror surface, and surely comes into surface contact with the mirror surface.
【００２０】 図１、図２の実施例とも、ミラーを保持部材から取り外すには、板バネを取り 外してミラーを長手方向へ引き抜けばよく、ミラー交換等で、ミラーを保持部材 に装着するときは、逆に、ミラーを係合部から長手方向へ嵌入させ、最後に板バ ネで固定すれば良い。この着脱の際、ミラーの表面には支持部の尖端が接触しな いので支持部によりミラー表面が損なわれることがない。In both the embodiments shown in FIGS. 1 and 2, in order to remove the mirror from the holding member, the leaf spring may be removed and the mirror may be pulled out in the longitudinal direction. When the mirror is replaced, the mirror is attached to the holding member. In this case, conversely, the mirror may be fitted in the longitudinal direction from the engaging portion and finally fixed by the plate panel. At the time of this attachment / detachment, since the tip of the supporting portion does not contact the surface of the mirror, the supporting portion does not damage the mirror surface.
【００２１】[0021]
以上のように、この考案によれば新規なミラー装置を提供できる。この考案は 上述の如く構成されているので、着脱の際にミラー表面を損なう虞れがなく、従 ってミラーの着脱が極めて容易である。またミラー表面に課題な圧力がかからな いので反射膜の腐蝕が生じにくい。 As described above, according to this invention, a novel mirror device can be provided. Since the present invention is constructed as described above, there is no risk of damaging the mirror surface during attachment / detachment, and therefore attachment / detachment of the mirror is extremely easy. Moreover, since no problematic pressure is applied to the mirror surface, corrosion of the reflective film does not easily occur.
【図面の簡単な説明】[Brief description of drawings]
【図１】この考案の１実施例を説明するための図であ
る。FIG. 1 is a diagram for explaining one embodiment of the present invention.
【図２】この考案の別実施例を説明するための図であ
る。FIG. 2 is a diagram for explaining another embodiment of the present invention.
【図３】ミラー装置の具体例を説明するための図であ
る。FIG. 3 is a diagram for explaining a specific example of a mirror device.
２１ ミラー ２１Ａ フロートガラス ２１Ｂ 反射膜 ２３，２５ 保持部材 ２３１，２３２，２５１ 支持部 ２７ 板バネ 21 Mirror 21A Float Glass 21B Reflective Film 23, 25 Holding Member 231, 232, 251 Supporting Part 27 Leaf Spring
Claims (1)
なる長方形形状のミラーと、 上記ミラーの長手方向端部に係合する係合孔を形成さ
れ、上記長手方向端部を保持する１対の保持部材と、 上記ミラーを上記保持部材に係止固定する複数の板バネ
とを有し、 上記各保持部材の係合部に形成された鏡面態位設定用の
支持部にミラーの裏面を当接させ、上記板バネを上記保
持部材係合部とミラー表面との間に介設し、上記ミラー
表面を上記板バネにより面接触状態で押圧固定してなる
ミラー装置。1. A rectangular mirror formed by forming a reflecting film on one surface of a float glass, and an engaging hole for engaging a longitudinal end portion of the mirror, and holding the longitudinal end portion. A pair of holding members and a plurality of leaf springs for locking and fixing the mirror to the holding member, and the rear surface of the mirror on the support portion for setting the mirror surface state formed in the engaging portion of each holding member. And a plate spring interposed between the holding member engaging portion and the mirror surface, and the mirror surface is pressed and fixed in a surface contact state by the plate spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3420592U JPH0590420U (en) | 1992-05-22 | 1992-05-22 | Mirror device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3420592U JPH0590420U (en) | 1992-05-22 | 1992-05-22 | Mirror device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0590420U true JPH0590420U (en) | 1993-12-10 |
Family
ID=12407659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3420592U Pending JPH0590420U (en) | 1992-05-22 | 1992-05-22 | Mirror device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0590420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015177384A (en) * | 2014-03-17 | 2015-10-05 | コニカミノルタ株式会社 | Image reading apparatus |
-
1992
- 1992-05-22 JP JP3420592U patent/JPH0590420U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015177384A (en) * | 2014-03-17 | 2015-10-05 | コニカミノルタ株式会社 | Image reading apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0590420U (en) | Mirror device | |
| JP3472139B2 (en) | Image forming device | |
| JP3340521B2 (en) | Curved mirror mounting structure for scanning optical system | |
| JPH05203889A (en) | Optical writing device | |
| TW200306455A (en) | Support surface of a device for the optical recording of objects | |
| JP3645187B2 (en) | Optical device | |
| JP3305450B2 (en) | Scanning optical unit | |
| JPH058573Y2 (en) | ||
| JPH04257815A (en) | Reflecting mirror support structure of raster scanner | |
| JPH07183992A (en) | Image reader | |
| JPH11327049A (en) | Mirror fixing system | |
| JPH0654011U (en) | Lens mounting structure | |
| JPS6348510A (en) | Scanning optical system | |
| JPH0536401U (en) | Roof mirror | |
| JP2583154B2 (en) | Optical system mirror holding device | |
| JP3537080B2 (en) | Lighting equipment | |
| JPS62222769A (en) | Original reducing reader | |
| JPH0618349Y2 (en) | Holding sheet for transparent subjects | |
| JP2592713Y2 (en) | Reflection mirror mounting mechanism | |
| JPH0545599A (en) | Fixation structure for rectangular mirror for laser beam scanning | |
| JP2000047125A (en) | Optical scanner | |
| JP2540889Y2 (en) | Film filter unit | |
| JPH0587951U (en) | Lead detection device | |
| JPH0521226U (en) | Mirror angle adjustment device | |
| JPH08160282A (en) | Reflector member, reflection surface device, and optical scanner |