JPH0146844B2 - - Google Patents
Info
- Publication number
- JPH0146844B2 JPH0146844B2 JP61167402A JP16740286A JPH0146844B2 JP H0146844 B2 JPH0146844 B2 JP H0146844B2 JP 61167402 A JP61167402 A JP 61167402A JP 16740286 A JP16740286 A JP 16740286A JP H0146844 B2 JPH0146844 B2 JP H0146844B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens frame
- frame
- arm
- lens body
- 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
Links
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
【発明の詳細な説明】
本発明はレンズ保持装置の改良に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in lens holding devices.
第１図は、従来のレンズを鏡枠に固定する方法
を示す断面図である。 FIG. 1 is a sectional view showing a conventional method of fixing a lens to a lens frame.
従来レンズ６を鏡枠５に固定する方法としては
レンズ鏡枠突合部４に突き当り、その後、周囲に
ネジ２ａを切つた押え環２を用いて、レンズ６を
レンズ鏡枠５の突合部４に押し付けるようにして
固定する。 Conventionally, the method of fixing the lens 6 to the lens frame 5 is to abut the lens frame abutting part 4, and then use a retaining ring 2 with a screw 2a cut around the circumference to fix the lens 6 to the abutting part 4 of the lens frame 5. Press to secure.
この押え環２は鏡枠５の内側に切られたネジ部
１を介して鏡枠５に固定される。又レンズ鏡枠嵌
合部３は、鏡枠５の内径がレンズ６の外径よりも
わずかに大きく作られている。ただし、この鏡枠
５の内径とレンズ１の外径との差はレンズを鏡枠
５に組み込んだ際のガタの原因になるため、この
生じたガタがレンズ性能に影響を与えないように
ガタ量は極めて少ないものである。 This presser ring 2 is fixed to the lens frame 5 via a threaded portion 1 cut inside the lens frame 5. Further, in the lens frame fitting part 3, the inner diameter of the lens frame 5 is made slightly larger than the outer diameter of the lens 6. However, this difference between the inner diameter of the lens frame 5 and the outer diameter of the lens 1 causes play when the lens is assembled into the lens frame 5, so please take care to prevent this play from affecting the lens performance. The amount is extremely small.
又レンズ６をレンズ鏡枠突合部４に押え環２を
絞め付ける事によつて押し付けるためレンズ形状
に影響を与え、レンズ周辺部のダレ、曲率半径の
変化、さらに、レンズ６を鏡枠本体５の内部に固
定する前と比べそのニユートン縞の本数が増加し
たり、乱れが生じたりし、レンズ６の単体性能が
極端に低下する危険があつた。 In addition, since the lens 6 is pressed against the lens frame abutting portion 4 by tightening the holding ring 2, the shape of the lens is affected, causing sag in the lens periphery, changes in the radius of curvature, and furthermore, the lens 6 is pressed against the lens frame body 5. There was a risk that the number of Newtonian fringes would increase or disturbance would occur compared to before they were fixed inside the lens 6, and that the performance of the lens 6 as a single unit would be extremely degraded.
そこで、本発明は上記従来のレンズ保持装置に
おける諸欠点を解消すべく発明されたもので、特
に、従来のレンズ保持装置における押え環を用い
てレンズを鏡枠に固定することなく、鏡枠の内側
に設けたネジ部に対してレンズを直接螺着するこ
とが出来るように構成することによつてレンズを
鏡枠内に的確に、しかも簡単、迅速に、さらには
レンズの面形状を損うことなく装着し得るように
したことを特徴とする。 Therefore, the present invention was devised to solve the various drawbacks of the conventional lens holding devices described above. By configuring the lens so that it can be directly screwed onto the screw part provided on the inside, the lens can be accurately, easily, and quickly inserted into the lens frame, and the surface shape of the lens can be maintained. It is characterized by being able to be worn without any trouble.
以下本発明レンズの保持装置の実施例を図面と
ともに説明する。 Embodiments of the lens holding device of the present invention will be described below with reference to the drawings.
第２図ａ，ｂおよび第３図ａ〜ｄは、本発明レ
ンズ保持装置の実施例について示したものであ
る。 FIGS. 2a and 2b and FIGS. 3a to 3d show examples of the lens holding device of the present invention.
原理としては鏡枠の内側にネジ部４４と鏡枠変
形部４６を有している一方のレンズは、レンズ本
体４６の周囲に第３図ｂのようなうず巻状のレン
ズうず巻腕５７およびレンズ鏡枠嵌合部５８を有
している。このレンズ鏡枠嵌合部５８は、その外
周面に鏡枠の内側に設けられたネジ部４４に螺合
するネジ部５８ａを設けてある。 In principle, one lens has a threaded part 44 and a lens frame deformable part 46 inside the lens frame, and a spiral lens arm 57 and a spiral lens arm 57 as shown in FIG. 3b are arranged around the lens body 46. It has a lens frame fitting part 58. This lens frame fitting part 58 is provided with a threaded part 58a on its outer circumferential surface to be screwed into the threaded part 44 provided inside the lens frame.
前記レンズうず巻腕５７はレンズ本体５６の外
周面に一定間隔毎あるいは、外周面の一部に設け
ることができる。 The lens spiral arms 57 can be provided on the outer peripheral surface of the lens body 56 at regular intervals or on a part of the outer peripheral surface.
前記鏡枠変形部４６の形状は第２図ｂに示すよ
うに、ネジ部４４の谷径と等しい径を持つ鏡枠変
形部の低部１１とレンズ鏡枠嵌合部５８の外径よ
り小さい内径を持つ鏡枠変形部のピーク部１２に
より成り、レンズ鏡枠嵌合部５８はねじ込まれる
事により序々に、径の小さい方へ進んで行き、鏡
枠変形部４６のピーク部１２を通過する事によつ
てレンズ挿入部４２に固定される事になる。 As shown in FIG. 2b, the shape of the lens frame deforming part 46 is smaller than the outer diameter of the lower part 11 of the lens frame deforming part 11 having a diameter equal to the root diameter of the threaded part 44 and the lens frame fitting part 58. It consists of the peak part 12 of the lens frame deformation part having an inner diameter, and as the lens frame fitting part 58 is screwed in, it gradually advances toward the smaller diameter and passes through the peak part 12 of the lens frame deformation part 46. Depending on the situation, it will be fixed to the lens insertion part 42.
従つてレンズ本体５６を第２図ａの矢印側より
鏡枠４１の内側に設けられたネジ４４を利用して
ねじ込んで行き、レンズ鏡枠嵌合部５８の外径よ
り小さい内径を有する鏡枠変形部４６を通過する
際、レンズ本体５６に右回転を与えてねじ込もう
とするため、レンズうず巻腕５７はレンズ本体５
６側に縮み、レンズ鏡枠嵌合部５８の外径は小さ
くなり、レンズ本体４６は鏡枠変形部４６を容易
に通過し、その後レンズうず巻腕５７はもとにも
どり、レンズ本体５６をレンズ挿入部４２に固定
する事ができる。又、レンズ巻腕５７の形状はそ
の根本にレンズうず巻腕５１が動き易いように切
り込み（図示しない）を入れたり、その先細り形
状に度合を変化させる事による実施例を挙げるこ
とができる。 Therefore, the lens body 56 is screwed into the lens frame 41 from the arrow side in FIG. When passing through the deformed portion 46, the lens body 56 is rotated clockwise to try to screw in, so the lens spiral arm 57 rotates against the lens body 5.
6 side, the outer diameter of the lens frame fitting part 58 becomes smaller, the lens body 46 easily passes through the lens frame deformation part 46, and then the lens spiral arm 57 returns to its original position, and the lens body 56 It can be fixed to the lens insertion section 42. Further, the shape of the lens winding arm 57 can be modified such that a notch (not shown) is made at the base so that the lens spiral arm 51 can move easily, or the degree of the tapered shape is varied.
なおレンズ鏡枠嵌合部５８の外径と鏡枠変形部
４６の内径の差は、鏡枠４１とレンズ本体４３の
材質によつて決定されなければならない。 Note that the difference between the outer diameter of the lens frame fitting portion 58 and the inner diameter of the lens frame deforming portion 46 must be determined by the materials of the lens frame 41 and the lens body 43.
又、鏡枠変形部４６を鏡枠４１の内壁に設ける
場合、第２図ｄは４個あるが、レンズの形状等に
よりその数は４個に限らないものであるとともに
第２図ｄに点線で示す如く、レンズ鏡枠嵌合部５
８の外径より小径の鏡枠変形部４６ａを鏡枠４１
の内周壁面の全周に設けることにより実施するこ
とも可能である。 In addition, when the lens frame deforming portion 46 is provided on the inner wall of the lens frame 41, there are four as shown in FIG. 2d, but the number is not limited to four depending on the shape of the lens, etc. As shown, the lens frame fitting part 5
The lens frame deformed portion 46a having a smaller diameter than the outer diameter of the lens frame 41
It is also possible to implement this by providing the entire circumference of the inner circumferential wall surface.
これはレンズうず巻腕５７の弾性によりレンズ
鏡枠嵌合部５８の外径が前記鏡枠変形部４６ａに
ならつて変形することによる。従つてネジ部４４
とピツチを等しくし、このネジ部４４の谷径より
大きい外径を持つレンズ鏡枠嵌合部５８のネジ部
５８ａをねじ込ませてレンズうず巻腕５７を縮ま
せたのちネジ部４４の谷径より大きい外径のレン
ズ挿入部４２に固定してもよい。 This is because the outer diameter of the lens frame fitting portion 58 is deformed to follow the lens frame deforming portion 46a due to the elasticity of the lens spiral arm 57. Therefore, the threaded portion 44
The threaded part 58a of the lens frame fitting part 58, which has an outer diameter larger than the root diameter of the threaded part 44, is screwed in to shrink the lens spiral arm 57. It may be fixed to a lens insertion portion 42 having a larger outer diameter.
更にレンズ本体４３のねじ込み方法としては吸
板状の物で、レンズ表面を吸着させるか、レンズ
本体５６の有効径より外側にレンズカニメ穴を設
けることによつてねじ込みを実現させるか、ある
いは、レンズうず巻腕５７にねじ込み用治具を引
掛けて回転することによりねじ込みを実現させて
もよい。更にレンズ鏡枠嵌合部５８と胴付部４７
の間に弾性部材をはさみ込むことによつて、レン
ズのスラスト方向のガタの発生を防ぐことも実現
できる。 Furthermore, the lens body 43 can be screwed in by using a suction plate-like object to attract the lens surface, by providing a lens cannibal hole outside the effective diameter of the lens body 56, or by using a lens curvature. Screwing may be accomplished by hooking a screwing jig to the winding arm 57 and rotating it. Furthermore, the lens frame fitting part 58 and the body attachment part 47
By inserting an elastic member between them, it is also possible to prevent the lens from wobbling in the thrust direction.
以上の説明から明らかなように本発明のレンズ
保持装置によれば従来の押え環を用いずに、レン
ズを鏡枠内に固定できるため、押え環によるレン
ズに面形状の悪化（ニユートンの本数の増加及び
アスの増加）を認めなかつた。 As is clear from the above description, according to the lens holding device of the present invention, the lens can be fixed in the lens frame without using the conventional holding ring, so the holding ring causes deterioration of the surface shape of the lens (increasing the Newton's number). (increase in A) was not observed.
また、レンズの外周にラジアル方向に変形する
部材を設けているため、レンズを鏡枠内にねじ込
む場合、簡単にかつレンズの面形状を損なう事な
く迅速に挿入固定する事ができる。 Further, since a member that deforms in the radial direction is provided on the outer periphery of the lens, when the lens is screwed into the lens frame, it can be easily and quickly inserted and fixed without damaging the surface shape of the lens.
さらに、レンズの外周にラジアル方向に変形す
る部材を設けているため環境温度の変化に伴う、
レンズ外形の変化によつて生じる面形状の変化を
吸収する事ができ、プラスチツクレンズの使用温
度範囲の拡大が、実現できるものである。特に、
本発明レンズ保持装置によれば押え環を用いずに
レンズを鏡枠に直接螺着して取付けることができ
レンズの装着作業を的確、迅速にしかも簡単に行
える。 Furthermore, since there is a member on the outer periphery of the lens that deforms in the radial direction,
Changes in the surface shape caused by changes in the outer shape of the lens can be absorbed, and the temperature range in which the plastic lens can be used can be expanded. especially,
According to the lens holding device of the present invention, the lens can be directly screwed onto the lens frame without using a presser ring, and the lens mounting operation can be performed accurately, quickly, and easily.
第１図は従来のレンズ保持装置の断面図、第２
図ａは本発明の実施例を示す断面図、第２図ｂは
鏡枠変形部を示す端面図、第３図ａ，ｂは実施例
のレンズ側面図および正面断面図、第３図ｃ，ｄ
は第２図のレンズ鏡枠嵌合部の正面、側面よりの
拡大図およびＡ―Ａ線よりの断面図である。
６……レンズ、１１……鏡枠変形部の低部、１
２……鏡枠変形部のピーク部、４１……鏡枠、４
２……レンズ挿入部、４４……ネジ部、４６……
鏡枠変形部、４７……胴付部、４８……鏡枠ネジ
部、４９……鏡枠変形ニゲ部、５１……レンズバ
ネ腕、５２……変形吸収スペース、５３……レン
ズバネ腕の鏡枠嵌合部、５４……ガイド、５６…
…レンズ本体、５７……レンズうず巻腕、５８…
…レンズ鏡枠嵌合部。
Figure 1 is a sectional view of a conventional lens holding device, Figure 2 is a sectional view of a conventional lens holding device.
Figure a is a sectional view showing an embodiment of the present invention, Figure 2 b is an end view showing a deformed portion of the lens frame, Figures 3 a and b are side views and front sectional views of the lens of the embodiment, Figure 3 c, d
2 are enlarged front and side views of the lens frame fitting portion of FIG. 2, and a sectional view taken along the line AA. 6...Lens, 11...Low part of lens frame deformation part, 1
2...Peak part of lens frame deformation part, 41...Mirror frame, 4
2...Lens insertion part, 44...Screw part, 46...
Lens frame deformation part, 47...Body mounting part, 48... Lens frame screw part, 49... Lens frame deformation negation part, 51... Lens spring arm, 52... Deformation absorption space, 53... Lens spring arm lens frame Fitting portion, 54... Guide, 56...
...Lens body, 57...Lens spiral arm, 58...
...Lens mirror frame fitting part.
Claims (1)
うず巻状の腕と、該腕の端面に形成したネジ部
と、鏡枠の内周面に設けた上記腕部のネジ部と螺
合するネジ部と、該ネジ部の内径より小径に形成
した変形部と、該変形部と連設したレンズ本体挿
入部と、該レンズ本体挿入部にレンズ本体を固定
するようにしたことを特徴とするレンズ保持装
置。1. A spiral arm formed of an elastic member on the outer periphery of the lens body, a threaded portion formed on the end surface of the arm, and a threaded portion that screws into the threaded portion of the arm provided on the inner peripheral surface of the lens frame. A lens holder comprising: a deformed part formed to have a smaller diameter than the inner diameter of the threaded part; a lens body insertion part connected to the deformed part; and a lens body fixed to the lens body insertion part. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16740286A JPS6289917A (en) | 1986-07-15 | 1986-07-15 | Lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16740286A JPS6289917A (en) | 1986-07-15 | 1986-07-15 | Lens |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8533681A Division JPS57200005A (en) | 1981-06-03 | 1981-06-03 | Lens holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6289917A JPS6289917A (en) | 1987-04-24 |
| JPH0146844B2 true JPH0146844B2 (en) | 1989-10-11 |
Family
ID=15849036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16740286A Granted JPS6289917A (en) | 1986-07-15 | 1986-07-15 | Lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6289917A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013238747A (en) * | 2012-05-15 | 2013-11-28 | Seiko Epson Corp | Optical component, method for manufacturing the same, and image forming apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508807A (en) * | 1967-10-27 | 1970-04-28 | Ford Motor Co | Light pipe connector |
| JPS5772108A (en) * | 1980-10-22 | 1982-05-06 | Ricoh Co Ltd | Molded lens |
-
1986
- 1986-07-15 JP JP16740286A patent/JPS6289917A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508807A (en) * | 1967-10-27 | 1970-04-28 | Ford Motor Co | Light pipe connector |
| JPS5772108A (en) * | 1980-10-22 | 1982-05-06 | Ricoh Co Ltd | Molded lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6289917A (en) | 1987-04-24 |
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