JPH02124519A - Optical element - Google Patents
Optical elementInfo
- Publication number
- JPH02124519A JPH02124519A JP27764788A JP27764788A JPH02124519A JP H02124519 A JPH02124519 A JP H02124519A JP 27764788 A JP27764788 A JP 27764788A JP 27764788 A JP27764788 A JP 27764788A JP H02124519 A JPH02124519 A JP H02124519A
- Authority
- JP
- Japan
- Prior art keywords
- connecting member
- parallel plane
- shape
- optical element
- driving force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は内部に光学的に透明な物質を封入した２つの透
明な平行平面板の相対的角度を変化させることにより通
過光束の光学性能を任意に変化させるようにした光学素
子に関し、例えば写真用カメラやビデオカメラ等の撮影
系において該撮影系の一部に配置し、該撮影系の振動に
よる画像のブレを補正するようにした防振光学系等に好
適なものである。Detailed Description of the Invention (Industrial Field of Application) The present invention improves the optical performance of a passing light beam by changing the relative angle of two transparent parallel flat plates each containing an optically transparent substance. An anti-shake device that relates to an optical element that can be changed arbitrarily and is placed in a part of a photographing system such as a photographic camera or a video camera to correct image blur caused by vibration of the photographing system. It is suitable for optical systems and the like.
（従来の技術）
従来より、例えば液体やシリコーンゴム等の光学的に透
明な物質を２つの透明な平行平面板間に封入して可変頂
角プリズム体を形成し、２つの′平行平面板の角度（平
行度）を外部からの付勢力により変化させることにより
通過光束の光学性能を任意に変化させた光学素子、が種
々と提案されている。(Prior Art) Conventionally, a variable apex angle prism body is formed by sealing an optically transparent substance such as a liquid or silicone rubber between two transparent parallel plane plates, and Various optical elements have been proposed in which the optical performance of a passing light beam is arbitrarily changed by changing the angle (parallelism) by an external urging force.
第２０．第２１図は例えば特公昭４１−１１９０６号に
提案されている光学素子の概略図である。同図に示す光
学素子は２つの透明な平行平面板２０１を対向配置し、
可撓性の接続部材２０２によって周囲を保持し、その中
に透明な液体２０３を封入して構成されている。そして
入射光束りを所定角度偏向させて射出させている。20th. FIG. 21 is a schematic diagram of an optical element proposed in, for example, Japanese Patent Publication No. 41-11906. The optical element shown in the figure has two transparent parallel plane plates 201 arranged oppositely,
The periphery is held by a flexible connecting member 202, and a transparent liquid 203 is sealed therein. Then, the incident light beam is deflected by a predetermined angle and emitted.
第２２．第２３図は特開昭６０−１７６０１７号公報で
提案されている光学素子の概略図である。同図に示す光
学素子は２つの透明な平行平面板２２１を対向配置し、
内に透明弾性体２０４を挟持して構成されている。そし
て第２１図と同様に入射光束を所定角度偏向させて射出
させている。従来の光学素子はいずれも第２１図や第２
３図に示すように外部からの付勢力により２つの平行平
面板の角度を変化させることにより頂角が任意に制御で
きる可変頂角プリズムを形成し、入射光束を所定角度偏
向させて射出している。22nd. FIG. 23 is a schematic diagram of an optical element proposed in Japanese Unexamined Patent Publication No. 176017/1983. The optical element shown in the figure has two transparent parallel plane plates 221 arranged oppositely,
A transparent elastic body 204 is sandwiched therein. Then, as in FIG. 21, the incident light beam is deflected by a predetermined angle and emitted. All conventional optical elements are shown in Fig. 21 or 2.
As shown in Figure 3, a variable apex angle prism whose apex angle can be arbitrarily controlled by changing the angle of two parallel plane plates using an external biasing force is formed, and the incident light beam is deflected at a predetermined angle and then emitted. There is.
（発明が解決しようとする問題点）
しかしながら従来の光学素子は所定の材質及び形状より
成る接続部材を伸縮させて、２つの平行平面板より成る
角度を変化させており、一般にこのときの駆動力は大き
くこの為駆動源が大型化し又繰り返し変形させることに
より接続部材の一部が破損したりする場合があった。(Problem to be solved by the invention) However, in conventional optical elements, the angle formed by two parallel plane plates is changed by expanding and contracting a connecting member made of a predetermined material and shape, and generally the driving force at this time is As a result, the drive source becomes large, and a portion of the connecting member may be damaged due to repeated deformation.
更には２つの平行平面板で挟持されている物質が接続部
材を通過したり、若しくは接続部材と平行平面板との接
着部を通ってしみ出してきたり、特に透明弾性体の場合
は空気中の水分を吸湿し屈折率変動つ起こしたりする等
の問題点があった。Furthermore, the substance sandwiched between the two parallel plane plates may pass through the connecting member or seep out through the bond between the connecting member and the parallel plane plates, and especially in the case of transparent elastic bodies, substances in the air may There were problems such as absorbing moisture and causing fluctuations in the refractive index.
この低接続部材と平行平面板との接着部に光学素子の駆
動により外力が加わり接着部がはがれ内部の物質がしみ
出す等の問題点があった。There have been problems in that an external force is applied to the bonded portion between the low connection member and the parallel plane plate due to the driving of the optical element, causing the bonded portion to peel off and the substance inside to seep out.
本発明は２つの透明な平行平面板を対向配置し、接続部
材により後に内部に空間が出来るように接続し、内部に
封入した透明物質を挟持し、可変頂角プリズム体を形成
する際に、接続部材の形状を適切に設定することにより
、２つの平行平面板より形成される角度を小さな駆動力
で容易に変化させることができ又内部に封入した物質の
外部環境変化に伴う変質を防止した良好なる光学性能が
得られる光学素子の提供を目的とする。In the present invention, when forming a variable apex angle prism body by arranging two transparent parallel plane plates facing each other, connecting them with a connecting member so as to create a space inside, and sandwiching a transparent substance sealed inside, By appropriately setting the shape of the connecting member, the angle formed by the two parallel plane plates can be easily changed with a small driving force, and the deterioration of the substance sealed inside due to changes in the external environment can be prevented. The purpose of the present invention is to provide an optical element that provides good optical performance.
（問題点を解決するための手段）
光学的に透明な物質を透明な一対の平行平面板で変形可
能な接続部材を利用して挟持し外部からの付勢力により
該一対の平行平面板で形成される角度を変化させること
により通過光束に対し所定の光学特性を得るようにした
光学素子において、該接続部材を該平行平面板に垂直断
面内において少なくとも１つのＶ字形状の７字部材を有
するように構成したことである。(Means for solving the problem) An optically transparent substance is held between a pair of transparent parallel plane plates using a deformable connecting member, and formed by the pair of parallel plane plates by an external urging force. The optical element is configured to obtain predetermined optical characteristics for a passing light beam by changing the angle at which the connecting member is connected to the parallel plane plate, and the connecting member has at least one V-shaped 7-shaped member in a perpendicular cross section to the parallel plane plate. This is how it was configured.
（実施例）
第１図、第２図は本発明の第１実施例の要部平面図と要
部断面図である。(Embodiment) FIGS. 1 and 2 are a plan view and a sectional view of a main part of a first embodiment of the present invention.
同図においてＡは光学素子、ｌは光学的に透明な平行平
面板でガラスやプラスチック材等から成り、外部から付
勢力がないときは２つの平行平面板ｌより形成される角
度は第２図に示すように略平行となっている。In the figure, A is an optical element, l is an optically transparent parallel flat plate made of glass or plastic material, etc. When there is no external biasing force, the angle formed by the two parallel flat plates l is as shown in Figure 2. As shown in the figure, they are almost parallel.
２は接続部材であり例えば高分子フィルムやアルミ箔等
を積層したＶ字形状の変形可能な可撓性材料より成って
いる。又接続部材２は同図に示すように平行平面板ｌの
垂直断面内において少なくとも１つのＶ字形状の肉厚が
一定又は部分的に肉厚の異なる７字部材を有するように
構成されている。Reference numeral 2 denotes a connecting member, which is made of a V-shaped deformable flexible material laminated with, for example, a polymer film or aluminum foil. Further, as shown in the figure, the connecting member 2 is configured to have at least one V-shaped 7-shaped member having a constant wall thickness or partially varying wall thickness in the vertical cross section of the parallel plane plate l. .
３は光学的に透明な物質であり、例えば水、アルコール
、グリコール、シリコーンオイル、シリコーンゴム等よ
り成っている。3 is an optically transparent substance, such as water, alcohol, glycol, silicone oil, silicone rubber, etc.
５は支持部材で平行平面板１を取り囲むような形状で支
持している硬度の高い例えばアルミニウムやプラスチッ
ク成形物等から成っている。Reference numeral 5 denotes a support member which surrounds and supports the parallel plane plate 1 and is made of a highly hard material such as aluminum or plastic molding.
次に本実施例の動作状態について示す。Next, the operating state of this embodiment will be described.
第２図に示すように光学素子Ａに何も付勢力が加わらな
いときは２つの平行平面板ｌより形成される角度は略平
行となっており、入射光りは直線的に光学素子Ａを通過
し射出する。As shown in Figure 2, when no urging force is applied to optical element A, the angles formed by the two parallel plane plates l are approximately parallel, and the incident light passes through optical element A in a straight line. and ejects.
第３図は光学素子Ａの外周の一部にネジやカム等により
、又ピエゾ素子や電磁石を用いて、この他超音波モータ
や温度変化を利用した形状記憶合金等により付勢力を加
えた場合の概略図である。Figure 3 shows a case where a biasing force is applied to a part of the outer circumference of optical element A using a screw, cam, etc., a piezo element, an electromagnet, an ultrasonic motor, a shape memory alloy using temperature changes, etc. FIG.
同図に示すように付勢力を加えると２つの平行平面板１
より形成される角度は所定の大きさを有するようになり
、光学素子Ａは一種の可変頂角プリズム体としての機能
を有するようになる。この為光学素子Ａを通過する光束
りは屈折し、偏向して射出する。As shown in the figure, when a biasing force is applied, two parallel plane plates 1
The angle thus formed has a predetermined size, and the optical element A functions as a kind of variable apex angle prism body. Therefore, the light beam passing through the optical element A is refracted, deflected, and emitted.
このとき物質３、例えば液体の体積は不変である為、同
図に示すように接続部材２の上方の部材２ａは伸長し、
下方の部材２ｂは収縮し、全体がプリズム形に変形する
。At this time, since the volume of the substance 3, for example, the liquid, remains unchanged, the member 2a above the connecting member 2 expands as shown in the figure.
The lower member 2b contracts and deforms into a prismatic shape as a whole.
一般に例えば液体を変形させる付勢力は駆動速度が急激
でない場合は全んど液体の抵抗力がなく無視することが
できる為、実用上は光学素子の変形駆動力は接続部材２
の変形応力によって決まってくる。そこで本実施例では
接続部材２の形状を前述の如く適切に設定することによ
り光学素子の変形駆動力がなるべく小さくなるようにし
ている。In general, for example, if the driving speed is not rapid, the urging force that deforms the liquid can be ignored as there is no resistance force of the liquid at all, so in practice, the deforming driving force of the optical element is the connecting member 2.
It is determined by the deformation stress of Therefore, in this embodiment, the shape of the connecting member 2 is appropriately set as described above, so that the driving force for deforming the optical element is made as small as possible.
尚本実施例において平行平面板ｌの材料と接続部材２の
接着が容易な場合には第４図（Ａ）に示すように支持部
材５を省略しても良い。これによれば組み立て工程が削
除出来又光学素子の簡素化が図れるので好ましい。In this embodiment, if the material of the parallel plane plate 1 and the connecting member 2 can be easily bonded together, the supporting member 5 may be omitted as shown in FIG. 4(A). This is preferable because the assembly process can be eliminated and the optical element can be simplified.
又接続部材２の断面形状を第４図（Ｂ）に示すように逆
Ｖ字形状にしても良い。Further, the cross-sectional shape of the connecting member 2 may be formed into an inverted V-shape as shown in FIG. 4(B).
同図の示すように逆Ｖ字形状にすれば光学素子Ａの有効
径が大きくとれるので好ましい。As shown in the figure, an inverted V-shape is preferable because the effective diameter of the optical element A can be increased.
接続部材２を例えば成形により第４図（Ｃ）に示すよう
な形状とし、平行平面板ｌにはめ込むようにして装着し
ても良く、これによれば平行平面板ｌとの接着力が高ま
るので好ましい。For example, the connecting member 2 may be formed into a shape as shown in FIG. 4(C) by molding, and may be attached by fitting it into the parallel plane plate l. This increases the adhesive force with the parallel plane plate l. preferable.
又支持部材５と接続部材２を第４図（Ｄ）に示すように
予め嵌合するような形状より構成しておけば接着耐久性
の良い光学素子を得ることができる。Furthermore, if the supporting member 5 and the connecting member 2 are configured in advance so that they fit together as shown in FIG. 4(D), an optical element with good adhesive durability can be obtained.
次に本発明の光学素子の接続部材の効果及び断面形状の
他の実施例について説明する。Next, other embodiments of the effect and cross-sectional shape of the connecting member of the optical element of the present invention will be described.
接続部材２にゴム、プラスチック等の可撓性材料を用い
、例えば従来のように第５図に示すような形状で構成し
圧縮変形させたとする。そうすると第１Ｏ図に示すよう
な形状の接続部材２全体を第１１図に示すような形状に
しなければならない。It is assumed that the connecting member 2 is made of a flexible material such as rubber or plastic, and is configured to have a shape as shown in FIG. 5, as in the conventional art, and is compressed and deformed. In this case, the entire connecting member 2 having the shape shown in FIG. 1O must be shaped as shown in FIG. 11.
このときに加わる変形応用力σは第１１図に示すように
接続部材２全体にかかる為に、変形応力は大きなものと
なる。Since the applied deformation force σ applied at this time is applied to the entire connecting member 2 as shown in FIG. 11, the deformation stress becomes large.
又接続部材２を従来のように第６図に示すような形状よ
り構成した場合も変形応力は第５図の場合に比べて多少
小さくなるが依然として大きな変形駆動力を要する。こ
れに対して本発明の如く第９図に示すようなＶ字形状に
すると変形の際の駆動力は第１２図に示す形状を第１３
図に示すように少し折り曲げたような変形とするだけの
駆動力ですむので大変小さくなる。即ちこのとき加わる
変形応力σは第１３図の矢印で示すように非常に微小領
域となる為、変形駆動力は第５図や第６図の場合に比べ
てはるかに小さくなる。Further, even when the connecting member 2 is constructed in the shape shown in FIG. 6 as in the conventional case, the deformation stress is somewhat smaller than that in the case of FIG. 5, but a large deformation driving force is still required. On the other hand, if the V-shape as shown in FIG. 9 is used as in the present invention, the driving force during deformation will change from the shape shown in FIG.
As shown in the figure, only the driving force needed to make the deformation look like a slight bend is required, so the size is very small. That is, since the deformation stress σ applied at this time is in a very small area as shown by the arrow in FIG. 13, the deformation driving force is much smaller than in the case of FIGS. 5 and 6.
この低木実施例においては第８図に示すように７字部材
を複数個有する蛇腹形状にしても変形駆動力が小さくて
良い。又Ｖ字形状を発展させた第７図に示すようなＵ字
形状で構成しても良い。この場合は第５図に示す接続部
材と第９図に示す接続部材との略中間位の変形駆動力、
即ち圧縮と折り曲げの両方の成分が混合したような変形
駆動力となる。In this embodiment of the shrub, the deformation driving force may be small even if the shrub is made into a bellows shape having a plurality of figure 7 members as shown in FIG. Alternatively, it may be constructed in a U-shape as shown in FIG. 7, which is a developed version of the V-shape. In this case, the deformation driving force is approximately intermediate between the connecting member shown in FIG. 5 and the connecting member shown in FIG.
In other words, the deformation driving force is a mixture of both compression and bending components.
本実施例において接続部材２の７字部材の厚さは、例え
ば可撓性材料を使用する場合、０．０１〜０．５ｍｍ程
度が好ましい。すなわち、０．５ｍｍ以上になると第１
３図に示す変形応力６は微小ではあるけれども厚みと共
に増加するため変形駆動力が大きくなりすぎて必要以上
の能力の駆動源を使わなければならなくなる。また、０
．０１ｍｍ以下になると光学素子の内部に封入した物質
３による内圧で接続部材２自体の形状を良好に保持する
のが難しくなり、又接続部材２の強度、折り曲げ耐久性
が低下し、更に平行平面板ｌとの接着強度や接着耐久性
も劣化し、光学素子の破損をまねく場合があるので良く
ない。In this embodiment, the thickness of the 7-shaped member of the connecting member 2 is preferably about 0.01 to 0.5 mm when a flexible material is used, for example. In other words, when it becomes 0.5 mm or more, the first
Although the deformation stress 6 shown in FIG. 3 is minute, it increases with thickness, so the deformation driving force becomes too large, and a driving source with more capacity than necessary must be used. Also, 0
．． If it is less than 0.01 mm, it becomes difficult to maintain the shape of the connecting member 2 well due to the internal pressure caused by the substance 3 sealed inside the optical element, and the strength and bending durability of the connecting member 2 decreases, and furthermore, the parallel plane plate This is not a good idea because the adhesive strength and adhesive durability with L may also deteriorate, leading to damage to the optical element.
また本実施例において接続部材を変形させる際、よく曲
がる部分は７字部材の中心部である。Further, in this embodiment, when the connecting member is deformed, the part that bends well is the center part of the figure 7 member.
このためここの部分の厚みを例えば第１４図、第１５図
に示すように他に比べて薄くすれば、変形駆動力は小さ
くなり、又中心部以外の部分を厚くすれば、平行平面板
ｌとの接着性に有利となり好ましい。Therefore, if the thickness of this part is made thinner than the other parts as shown in FIGS. 14 and 15, the deformation driving force will be reduced, and if the part other than the center part is made thicker, the parallel plane plate l It is preferable because it is advantageous for adhesion with.
即ち７字部材を部分的に肉厚の異なる部材より構成する
のが耐久性や駆動操作性等の点で好ましい。That is, it is preferable in terms of durability, driving operability, etc., that the figure 7 member is constructed from members having partially different wall thicknesses.
次に本実施例における接続部材の具体的な駆動力相対値
ＦＶについてシュミレーションを行った結果を表１〜表
４に示す。Next, Tables 1 to 4 show the results of simulations regarding specific driving force relative values FV of the connecting member in this example.
接続部材は断面形状が第１６図に示すＶ字形状より成り
断面当りの要求数をｌＯＯ程度、材質はシリコーンゴム
、ポアソン比σ＝０．４９９９とし、又接続部材２の７
字部分だけの駆動力を比較するために第１６図にように
支持部材５への接着面の直径寸法は内径がφ２８．５ｍ
ｍ、外径がφ３０ｍｍ、接続部材の接着面間隔を３ｍｍ
に設定した。なお、表１〜表４には簡略化のため第１６
図の点線で囲まれた部分のみを図示した。又表１には参
考の為に断面形状がＵ字形状の場合も示している。The connecting member has a V-shaped cross section as shown in FIG.
In order to compare the driving force of only the part shown in FIG.
m, the outer diameter is φ30mm, and the distance between the adhesive surfaces of the connecting members is 3mm.
It was set to Note that Tables 1 to 4 include the 16th table for simplification.
Only the part surrounded by the dotted line in the figure is illustrated. For reference, Table 1 also shows cases where the cross-sectional shape is U-shaped.
表１は接続部材２の断面形状がＶ字形状、逆Ｖ字形状そ
してＵ字部形状の場合を示している。Table 1 shows cases where the cross-sectional shape of the connecting member 2 is a V-shape, an inverted V-shape, and a U-shape.
７字形状と逆形状では駆動力相対値はほとんど変らない
がＵ字形状にすると１．５倍位駆動力が大きくなる。The relative value of the driving force is almost the same between the 7-shape and the reverse shape, but the driving force increases by about 1.5 times when the U-shape is used.
表２はＶ字形状の屈曲角度を変えることにより、接着部
から屈曲部までの距離を変化させた場合である。第１７
図に示すように接着部〜屈曲部間距離が長くなるほど駆
動力は小さくなる。Table 2 shows the case where the distance from the adhesive part to the bent part was changed by changing the bending angle of the V-shape. 17th
As shown in the figure, the longer the distance between the adhesive part and the bent part, the smaller the driving force becomes.
表３はＶ字形状の厚みを変えた場合である。第１８図に
示すように接続部材２の厚みが薄いほど駆動力が小さく
なる。Table 3 shows the case where the thickness of the V-shape was changed. As shown in FIG. 18, the thinner the connecting member 2 is, the smaller the driving force is.
本実施例において用いた有限要素法による構造解析の結
果によれば、接続部材をＶ字形状にするとその厚さｔに
対して駆動力ｔで増加する。その為、本実施例では前述
の如く接続部材の肉厚が耐久性や信頼性等を考慮して０
．５ｍｍ以下に設定し、駆動力がなるべく小さくなるよ
うにしている。According to the results of structural analysis using the finite element method used in this example, when the connecting member is formed into a V-shape, the driving force t increases with respect to the thickness t. Therefore, in this embodiment, the wall thickness of the connecting member is set to 0.
．． It is set to 5 mm or less to make the driving force as small as possible.
表４は７字部材の厚みに分布をつけた場合であり、第１
９図に示すように肉厚比が小さいほど、すなわち接着部
側に比べ屈曲部側の肉厚さを薄くする程駆動力が小さく
なってくる。Table 4 shows the case where the thickness of the figure 7 member is distributed.
As shown in FIG. 9, the smaller the wall thickness ratio, that is, the thinner the wall thickness on the bent side is compared to the adhesive side, the smaller the driving force becomes.
表
表
表
表
尚木実流側における接続部材２の材質は前述の如く垂直
断面形状が少なくとも１つのＶ字形状を有し、かつ可撓
性であればどんなものでも良い。The material of the connecting member 2 on the wood flow side may be any material as long as it has at least one V-shape in vertical cross section as described above and is flexible.
例えばポリエチレン、ポリプロピレン、ポリエステル、
ポリ塩化ビニル、ポリアミド、ポリスチレン、ポリイソ
ブチレン、ポリカーボネート、ポリ塩化ビニリデン、ポ
リビニルアセタール、ポリメタクリル酸メチル、ポリア
クリロニトリル、ポリイミド、セルロース系、フッ素樹
脂類、エポキシ、シリコーン樹脂、ポリウレタン等の熱
可塑、及び熱硬化性樹脂並びにそれらの共重合体や可塑
剤又は充填剤を含むものであっても良い。または、クロ
ロブレンゴム、スチレン・ブタジェンゴム、ニトリルゴ
ム、ブチルゴム、シリコーンゴム、ブタジェンゴム、フ
ッ素系ゴム、ウレタンゴム、インブレンゴム等のゴム類
や、ポリエチレン、ポリスチレン、ポリウレタン、ポリ
アミド。For example, polyethylene, polypropylene, polyester,
Thermoplastics such as polyvinyl chloride, polyamide, polystyrene, polyisobutylene, polycarbonate, polyvinylidene chloride, polyvinyl acetal, polymethyl methacrylate, polyacrylonitrile, polyimide, cellulose, fluororesin, epoxy, silicone resin, polyurethane, and heat It may contain a curable resin, a copolymer thereof, a plasticizer, or a filler. Or rubbers such as chloroprene rubber, styrene-butadiene rubber, nitrile rubber, butyl rubber, silicone rubber, butadiene rubber, fluorine rubber, urethane rubber, inbrene rubber, polyethylene, polystyrene, polyurethane, polyamide.
ポリエステル等の熱可塑性エラストマー等が適用可能で
ある。Thermoplastic elastomers such as polyester are applicable.
これらの中で比較的柔軟な例えばゴム類や熱可塑性エラ
ストマーは接着性、液体密封性、伸縮耐久性等の点で好
適である。また硬いが薄肉に成形すると柔軟性を示す熱
塑可性、熱硬化性樹脂は上記性質に加え形状を適切に設
定すれば変形駆動力を小さくすることができるので好ま
しい。Among these, relatively flexible rubbers and thermoplastic elastomers, for example, are preferable in terms of adhesiveness, liquid-tightness, and durability against expansion and contraction. Further, thermoplastic and thermosetting resins that are hard but flexible when molded into a thin wall are preferable because, in addition to the above-mentioned properties, if the shape is appropriately set, the deformation driving force can be reduced.
特にこれらの中から接着方法が確立されていて接着性が
良く、耐液体性があり、伸縮耐久性が強く、変形駆動力
の小さい等の性質を考慮すると、シリコーンゴムまたは
フッ素ゴムまたはブチルゴムが最も好ましい。Among these, silicone rubber, fluororubber, or butyl rubber is the most effective, considering its properties such as well-established bonding methods, good adhesion, liquid resistance, strong expansion and contraction durability, and low deformation driving force. preferable.
この他アルミニウム、銅、ステンレス等の金属箔や前記
プラスチックと金属箔との積層体より構成しても良い。In addition, it may be constructed from a metal foil such as aluminum, copper, or stainless steel, or a laminate of the above-mentioned plastic and metal foil.
光学的に透明な物質３としては例えば、エチルアルコー
ル、エチレングリコール等のアルコール類、四塩化炭素
、クロロホルム、臭化エチレン等のハロゲン化アルキル
類、ギ酸、酢酸等の有機酸類、酢酸メチル、酢酸エチル
等のエステル類、その他エーテル、ケトン、低分子量ポ
リエーテル、低分子量ポリエステル、芳香族化合物等の
有機物液体、及び」１記液体に固体を溶解した溶液系、
上記液体間の混合液系、他に流動パラフィン、シリコー
ンオイル等の透明粘性液体等が適用可能である。これら
の中から光学素子を使用する温度範囲内で固化、または
気化しない、また温度による屈折率の変化を受けにくい
等の性質を考慮するとシリコーンオイル類が最適で特に
ジメチルシリコーン、メチルフェニルシリコーン、ジフ
ェニルシリコーン、フロロシリコーンオイルシい。Examples of the optically transparent substance 3 include alcohols such as ethyl alcohol and ethylene glycol, alkyl halides such as carbon tetrachloride, chloroform, and ethylene bromide, organic acids such as formic acid and acetic acid, methyl acetate, and ethyl acetate. esters, other ethers, ketones, low molecular weight polyethers, low molecular weight polyesters, organic liquids such as aromatic compounds, and solution systems in which solids are dissolved in the liquids described in 1.
In addition to the mixed liquid system among the above-mentioned liquids, transparent viscous liquids such as liquid paraffin and silicone oil can be used. Among these, silicone oils are the best, especially dimethyl silicone, methylphenyl silicone, diphenyl Silicone, fluorosilicone oil.
尚前述の接続部材２は物質３によって溶解あるいは膨潤
しないように接続部材２と物質３との組み合せを考慮し
て各材料を選定することが望ましい。例えばシリコーン
ゴムに対してはフロロシリコーンオイル、フッ素ゴムに
対してはジメチルシリコーンオイル等の組み合せが好ま
しい。It is preferable to select each material of the above-mentioned connecting member 2 in consideration of the combination of the connecting member 2 and the substance 3 so as not to dissolve or swell due to the substance 3. For example, preferred combinations include fluorosilicone oil for silicone rubber and dimethyl silicone oil for fluororubber.
支持部材５は接続部材２と接着しやすい材料が良く、又
光学素子をカメラ等の光学装置に組み込む場合の位置決
め用基準面を持たせたり、固定用のネジ穴等を取り付け
ておけば、組み込みが容易となり好ましい。例えば材質
は金属やプラスチング等が適用可能である。The supporting member 5 should be made of a material that easily adheres to the connecting member 2, and if it has a reference surface for positioning when incorporating the optical element into an optical device such as a camera, or has screw holes for fixing, etc., it will be easy to incorporate it. This is preferable because it is easy. For example, metal, plastics, etc. can be used as the material.
また平行平面板ｌにガラス材を用いた場合には第２図の
ようなＬ字形状にしておけばガラス板ｌを支持し易い。Further, when a glass material is used for the parallel plane plate l, it is easier to support the glass plate l if it is formed into an L-shape as shown in FIG.
また材質としては接続部材２の接着力が強く接着が容易
であり、かつ、光学装置に組み込んだ際の軽量性の点か
らアルミニウムが好ましい。As for the material, aluminum is preferable since the connecting member 2 has a strong adhesive force and is easy to bond, and is lightweight when incorporated into an optical device.
（発明の効果）
以上のように本発明によれば２つの透明な平行平面板を
対向配置し、接続部材で接続し内部に透明物質を封入し
て、可変頂角プリズム体等の光学素子を形成する際、前
述したように接続部材の断面形状を少なくとも１つＶ字
形状を有するように構成することにより、２つの平行平
面板より形成される角度を小さな駆動力で容易に頂角を
変え光学特性を変化させることのできる光学素子を達成
することができる。(Effects of the Invention) As described above, according to the present invention, two transparent parallel plane plates are arranged facing each other, connected by a connecting member, and a transparent substance is sealed inside, so that an optical element such as a variable apex prism body can be connected. When forming the connecting member, as described above, by configuring the cross-sectional shape of at least one V-shape, the angle formed by the two parallel plane plates can be easily changed to the apex angle with a small driving force. Optical elements whose optical properties can be changed can be achieved.
又光学素子の駆動力を低減できるため、組み込もうとす
る光学機器の駆動源や電源が小型化軽量化でき、例えば
今までに防振光学系を適用できなかった小型汎用のカメ
ラ等にも光学素子を組み込み製品とすることが可能であ
る。In addition, since the driving force of the optical element can be reduced, the drive source and power source of the optical equipment to be incorporated can be made smaller and lighter, making it suitable for use in small general-purpose cameras, for example, to which anti-vibration optical systems could not be applied until now. It is possible to incorporate optical elements into products.
第１図、第２図は本発明の実施例の要部平面図と要部断
面図、第３図は第２図において光学素子の一部を変位さ
せたときの要部概略図、第４図（Ａ）、（Ｂ）、（Ｃ）
、（Ｄ）は本発明の他の一実施例の要部概略図、第５図
、第６図、第１０図、第１１図は従来の光学素子におけ
る接続部材の説明図、第７図、第８図、第９図、第１２
図。
第１３図、第１４図、第１５図は本発明の光学素子で用
いられる接続部分の断面概略図、第１６図は本発明にお
いて接続部分の駆動力シュミレーションで用いた接続部
材近傍の断面図、第１７図。
第１８図、第１９図は本発明の光学素子の接続部材の駆
動力変化を示す説明図、第２０〜第２３図は従来の光学
素子の要部概略図である。
図中１は平行平面板、２は接続部材、３は透明物質、５
は支持部材、ｈは光束である。
韓１都〜Δに曹那閘（ｍｍ）の距畠Ｌ
−Ｃ
手続補
正
書（自発）
工＝
ｌ＝
平成
凡手
３月
１’／
日
発明の名称
光学素子
補正をする者
住所
名称
事件との関係 特許出願人
東京都大田区下丸子３−３０
（１００） キャノン株式会社
代表者 賀 来 龍 三 部
代
理
人
居
所
〒１５８東京都世田谷区奥沢２−１７−３ベルハイム自
由が丘３０１号（電話７１８−５６１４）補正の内容
（１）（イ）明細書第４頁第８行目の「変動つ起こした
り」を「変動を起こしたり」と補正する。
（ロ）明細書第６頁第６行目の「シリコーンオイル」の
次に「変性シリコーンオイル」を挿入する。1 and 2 are a plan view and a sectional view of a main part of an embodiment of the present invention, FIG. 3 is a schematic diagram of a main part when a part of the optical element is displaced in FIG. 2, and FIG. Figures (A), (B), (C)
, (D) is a schematic diagram of main parts of another embodiment of the present invention, FIGS. 5, 6, 10, and 11 are explanatory diagrams of connecting members in conventional optical elements, FIG. 7, Figure 8, Figure 9, Figure 12
figure. 13, 14, and 15 are schematic cross-sectional views of the connecting portion used in the optical element of the present invention, and FIG. 16 is a cross-sectional view of the vicinity of the connecting member used in the driving force simulation of the connecting portion in the present invention. Figure 17. FIGS. 18 and 19 are explanatory diagrams showing changes in the driving force of the connecting member of the optical element of the present invention, and FIGS. 20 to 23 are schematic diagrams of main parts of the conventional optical element. In the figure, 1 is a parallel plane plate, 2 is a connecting member, 3 is a transparent material, and 5
is a support member and h is a luminous flux. Korean 1st ~ Δ to Sonaja (mm) L -C Procedural amendment (spontaneous) Engineering = l = Heisei Bonte March 1' / Date Name of invention Address name of person who corrects optical elements Case and Relationship Patent applicant 3-30 Shimomaruko, Ota-ku, Tokyo (100) Canon Co., Ltd. Representative Ryu Kaku Mibe Agent Address 301 Jiyugaoka, Belheim, 2-17-3 Okusawa, Setagaya-ku, Tokyo 158 (Telephone 718-5614) ) Contents of the amendment (1) (a) In the 8th line of page 4 of the specification, ``to cause fluctuations'' is amended to ``to cause fluctuations''. (b) Insert "modified silicone oil" next to "silicone oil" on page 6, line 6 of the specification.
Claims (3)
変形可能な接続部材を利用して挟持し外部からの付勢力
により該一対の平行平面板で形成される角度を変化させ
ることにより通過光束に対し所定の光学特性を得るよう
にした光学素子において、該接続部材を該平行平面板に
垂直断面内において少なくとも１つのＶ字形状のＶ字部
材を有するように構成したことを特徴とする光学素子。(1) An optically transparent substance is held between a pair of transparent parallel plane plates using a deformable connecting member, and the angle formed by the pair of parallel plane plates is changed by an external biasing force. The optical element is characterized in that the connecting member is configured to have at least one V-shaped member having a V-shape in a vertical cross section on the parallel plane plate. optical element.
の肉厚で構成したことを特徴とする請求項１記載の光学
素子。(2) The V-shaped member of the connecting member is 0.01 to 0.5 mm
2. The optical element according to claim 1, wherein the optical element has a wall thickness of .
部材より構成したことを特徴とする請求項１又は請求項
２記載の光学素子。(3) The optical element according to claim 1 or 2, wherein the V-shaped member of the connecting member is constructed of members having partially different wall thicknesses.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27764788A JPH02124519A (en) | 1988-11-02 | 1988-11-02 | Optical element |
| US08/120,230 US5589239A (en) | 1988-11-02 | 1993-09-14 | Variable-angle optical device with optically transparent substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27764788A JPH02124519A (en) | 1988-11-02 | 1988-11-02 | Optical element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02124519A true JPH02124519A (en) | 1990-05-11 |
Family
ID=17586339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27764788A Pending JPH02124519A (en) | 1988-11-02 | 1988-11-02 | Optical element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02124519A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5781339A (en) * | 1992-07-24 | 1998-07-14 | Canon Kabushiki Kaisha | Optical device for deflecting light |
| US5796531A (en) * | 1993-07-22 | 1998-08-18 | Canon Kabushiki Kaisha | Light beam deflection unit |
-
1988
- 1988-11-02 JP JP27764788A patent/JPH02124519A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5781339A (en) * | 1992-07-24 | 1998-07-14 | Canon Kabushiki Kaisha | Optical device for deflecting light |
| US5796531A (en) * | 1993-07-22 | 1998-08-18 | Canon Kabushiki Kaisha | Light beam deflection unit |
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