JPS615215A - Plastic lens frame - Google Patents
Plastic lens frameInfo
- Publication number
- JPS615215A JPS615215A JP12514684A JP12514684A JPS615215A JP S615215 A JPS615215 A JP S615215A JP 12514684 A JP12514684 A JP 12514684A JP 12514684 A JP12514684 A JP 12514684A JP S615215 A JPS615215 A JP S615215A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- diameter
- lens frame
- frame
- plastic
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はビデオカメラなどに経過な、軽量かつコンパク
トなプラスチック廓枠に圓する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention is directed to a lightweight and compact plastic frame suitable for video cameras and the like.
ビデオカメラな軽量化するために光学部品をプラスチッ
クによる成形部品とすることが有効であるが、鏡枠プラ
スチック成形品を利用する場合、レンズ嵌合内径に約４
０〜６０（μｍ）のひけが生じる。そのため、レンズの
組！時にレンズを挿入する開口部の径が縮小した９％レ
ンズ保持部の径が増大するなどの影響が表われ、レンズ
の挿入が不可能になる場合があった。また、ひけの度合
いに−よっては、挿入が可能であったとしても、レンズ
保持部において、レンズのガタや、倒れが８こり１元軸
ずれや解像度不良の原因となる。さらに、ヒケやパリは
嵌合内径を偏心させる場合も生じる。In order to reduce the weight of video cameras, it is effective to make optical parts molded from plastic, but when using plastic molded parts for the lens frame, the inner diameter of the lens fitting is approximately 4.
A sink mark of 0 to 60 (μm) occurs. Therefore, a set of lenses! In some cases, the diameter of the opening into which the lens is inserted is reduced by 9%, and the diameter of the lens holding portion is increased, making it impossible to insert the lens. Furthermore, depending on the degree of shrinkage, even if it is possible to insert the lens, rattling or tilting of the lens in the lens holder may cause a single axis shift or poor resolution. Furthermore, sink marks and cracks may cause the fitting inner diameter to become eccentric.
金ＪＩＸＭ！の鏡枠に丁れば、このような問題は生じな
いが、軽量化や製造コストの点で不利となる。Kim JIXM! If it is mounted on a mirror frame, this problem will not occur, but it will be disadvantageous in terms of weight reduction and manufacturing cost.
プラスチックレンズのパリや成形時のひけを対策する例
として１例えば実開１１４４５６−１５６１０ 。An example of countermeasures against molding of plastic lenses and sink marks during molding is disclosed in Utility Model Application Publication No. 114456-15610.
実開昭５６−１５６０１１号公報に示されるように鏡枠
の形状を改良することが知られている。It is known to improve the shape of the lens frame as shown in Japanese Utility Model Application Publication No. 56-156011.
しかしながら、このような従来技術においては鏡枠自体
の成形による変形に対してはその対策について示唆され
ていなかった。However, in such prior art, no countermeasures have been suggested against deformation due to molding of the lens frame itself.
本発明の目的は上記問題を解決するためＫなされたもの
で、組立の際プラスチック鏡枠にレンズ挿入が容易でパ
リやひけの影響を回避でき。SUMMARY OF THE INVENTION An object of the present invention was to solve the above-mentioned problems, and the lens can be easily inserted into a plastic lens frame during assembly, thereby avoiding the effects of flash and sink marks.
レンズ挿入不可能やレンズの倒れやガタつきを防止でき
るグラスナック鏡枠を提供することにある。To provide a glass nack mirror frame that prevents lenses from being inserted and from falling down and shaking.
本発明はプラスチック鏡枠レンズのレンズ実装面ＫＲ差
を投げてレンズ挿入開口部の径とレンズ保持部の径とを
あらかじめ変えてレンズ実装部の直径を所定の径にする
ことを特徴とする。The present invention is characterized in that the diameter of the lens insertion opening and the diameter of the lens holding part are changed in advance by changing the lens mounting surface KR difference of the plastic lens frame lens, so that the diameter of the lens mounting part is set to a predetermined diameter.
以下本発明を図に示す実施例に従って具体的に説明する
。第１図は本発明九よるグラスチツ゛り鏡枠レンズの一
実施例を示す断面図である。The present invention will be specifically explained below according to embodiments shown in the drawings. FIG. 1 is a sectional view showing an embodiment of a glass-stiff lens frame lens according to the present invention.
１はプラスチック鏡枠、２〜５は間隔Ｒ，６゜７はレン
ズ押え板、Ｌｌ−Ｌ、はレンズである。レンズ鏡枠１に
レンズＬ１〜Ｌ？が１間隔環２〜５と共に組込まれ１両
側よりレンズ押え板により固定され又いる。第２図は、
上記構成の一部を拡大したもので、レンズ挿入内径ｓ（
Ａ、Ｂ部）はレンズ固定位［において−膜段差を設けて
それぞれのレンズ入口部とレンズ固定位置Ａ、Ｂ部との
径をほぼ同じとし、中間の径を徐々に変化させてレンズ
のレンズ固定位置でのガタを防止したものである。すな
わち、第３図に示すように、レンズ挿入のための開口部
Ｃの径より。1 is a plastic lens frame, 2 to 5 are distances R, 6°7 is a lens holding plate, and Ll-L is a lens. Lenses L1 to L in lens frame 1? is assembled together with rings 2 to 5 spaced apart from each other and fixed by lens holding plates from both sides. Figure 2 shows
This is an enlarged view of a part of the above configuration, with the lens insertion inner diameter s (
At the lens fixing position (sections A and B), a membrane step is provided so that the diameters of the respective lens entrances and the lens fixation positions A and B are approximately the same, and the intermediate diameter is gradually changed to adjust the diameter of the lens. This prevents wobbling at the fixed position. That is, as shown in FIG. 3, from the diameter of the opening C for inserting the lens.
レンズ保持部付近りの径が大きくなってしまうので、レ
ンズな実装する部分Ｅの径をレンズが保持できるようあ
らかじめ縮小した金型で成形して得るものである。Since the diameter near the lens holding part becomes large, it is obtained by molding with a mold that is previously reduced in size so that the diameter of the part E where the lens is mounted can be held.
また、上記鏡枠のパリ、ひげ等により径の変′化だけで
なく軸心ずれが生じるため、成形時に細心のずれを測足
し、細心をずらして偏心した金型を利用することによっ
て成形した１ラヌチツク暁枠内径部の軸を一致させるこ
とができる。In addition, due to the above-mentioned burrs, whiskers, etc., not only a change in the diameter but also an axial misalignment occurs, so we carefully measured the misalignment during molding, and made the molding process by carefully measuring the misalignment and using an eccentric mold. 1. The axes of the inner diameter part of the Akatsuki frame can be aligned.
第４図は偏心させた内径金型の一例を示す略図で、実巌
部は軸）υの合った内径金型１点紛は軸心を半径で７０
〜８０μｍ程度ずらした偏心金層の例を示すものである
。Figure 4 is a schematic diagram showing an example of an eccentric inner diameter mold.
An example of an eccentric gold layer shifted by about 80 μm is shown.
本発明によれば、プラスチックレンズ鋭枠内径のレンズ
嵌合部に確実にレンズを嵌合でき、ガタや倒れを容易に
対策可能であるので、光学性能において、解像度不良、
光軸ずれの対策になり、＠童でしかも低コストのレンズ
鏡枠を作成することができる。According to the present invention, it is possible to reliably fit the lens into the lens fitting portion of the sharp inner diameter of the plastic lens frame, and it is possible to easily take measures against looseness and tilting.
This is a countermeasure against optical axis misalignment, and it is possible to create a low-cost lens frame.
第１図は本発明によるグラスナック鏡枠の一実施例を示
す断面図、第２図はその部分的拡大断面図、第３図は段
差嵌合部にレンズを嵌合させる時のａｔＳ図、第４図は
偏心金型の一例を示す説明図である。FIG. 1 is a cross-sectional view showing an embodiment of the Glassnack lens frame according to the present invention, FIG. 2 is a partially enlarged cross-sectional view thereof, and FIG. 3 is an atS diagram when a lens is fitted into a stepped fitting part. FIG. 4 is an explanatory diagram showing an example of an eccentric mold.
Claims (1)
ンズを保持するためのレンズ押えによって構成され、鏡
枠成形時、嵌合内径に発生するひけにより、レンズ所定
位置の径が入口部で縮小し、嵌合部が増大しているプラ
スチック鏡枠において、前記径の増大している鏡枠部分
の金型にあらかじめ径を小さくする段差を設けて成形し
、前記レンズ所定位置の径を所定の大きさとしたことを
特徴とするプラスチック鏡枠。[Claims] Each lens group and a spacing ring that determines its position. It consists of a lens frame to insert them and a lens holder to hold the lenses after inserting all the lens groups.When forming the lens frame, due to sink marks that occur on the fitting inner diameter, the diameter of the lens at the specified position is In a plastic lens frame that has been shrunk and the fitting portion has increased, a step is formed in advance to reduce the diameter in the mold of the lens frame portion where the diameter is increased, and the diameter of the lens at a predetermined position is set to a predetermined value. A plastic mirror frame characterized by its size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12514684A JPS615215A (en) | 1984-06-20 | 1984-06-20 | Plastic lens frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12514684A JPS615215A (en) | 1984-06-20 | 1984-06-20 | Plastic lens frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS615215A true JPS615215A (en) | 1986-01-11 |
Family
ID=14903001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12514684A Pending JPS615215A (en) | 1984-06-20 | 1984-06-20 | Plastic lens frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS615215A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044261A (en) * | 1988-10-06 | 1991-09-03 | U.S. Philips Corporation | Coffee brewing apparatus |
| US5396487A (en) * | 1989-09-19 | 1995-03-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Structure for holding an optical article |
| US5493452A (en) * | 1990-10-31 | 1996-02-20 | Olympus Optical Company Limited | Lens retaining barrel |
| GB2365180A (en) * | 2000-02-21 | 2002-02-13 | Hewlett Packard Co | Prioritised compression of data in a portable information recording device |
| CN1326393C (en) * | 1998-07-15 | 2007-07-11 | 株式会社日立制作所 | Data recording apparatus |
-
1984
- 1984-06-20 JP JP12514684A patent/JPS615215A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044261A (en) * | 1988-10-06 | 1991-09-03 | U.S. Philips Corporation | Coffee brewing apparatus |
| US5396487A (en) * | 1989-09-19 | 1995-03-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Structure for holding an optical article |
| US5493452A (en) * | 1990-10-31 | 1996-02-20 | Olympus Optical Company Limited | Lens retaining barrel |
| CN1326393C (en) * | 1998-07-15 | 2007-07-11 | 株式会社日立制作所 | Data recording apparatus |
| GB2365180A (en) * | 2000-02-21 | 2002-02-13 | Hewlett Packard Co | Prioritised compression of data in a portable information recording device |
| GB2365180B (en) * | 2000-02-21 | 2004-11-24 | Hewlett Packard Co | Portable information capture device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4043560B2 (en) | Optical lens | |
| JPS5913005B2 (en) | Camera body structure | |
| JPH0961689A (en) | Lens frame for assembled lens | |
| JPS62145201A (en) | plastic cleanse | |
| JPS6146481Y2 (en) | ||
| JP2024051518A (en) | Lens unit and manufacturing method thereof | |
| JPH03229230A (en) | Optical instrument | |
| JPS5941312U (en) | lens holding frame | |
| JP7359625B2 (en) | lens unit | |
| JPH08238681A (en) | Lens barrel and mold for molding the same | |
| JPH0516126U (en) | Lens holding device | |
| JPH0511157A (en) | Plastic lens barrel | |
| JP2006138914A (en) | Lens unit | |
| US6456446B1 (en) | Lens holder provided with a lens holding frame which holds a lens having a circular outer diameter | |
| JPH0529717U (en) | Mold for plastic lens molding | |
| JPH03131537A (en) | Production of lens | |
| JP3157586B2 (en) | Optical image recording device | |
| JPH0225814A (en) | Optical device | |
| JPH03174526A (en) | Optical equipment | |
| JPH06160688A (en) | Lens barrel body formed by using metallic mold | |
| JPS642319Y2 (en) | ||
| JPS62299951A (en) | Production of lens barrel assembling body | |
| JPS60127122A (en) | Molding method of lens | |
| JPH04195005A (en) | Coupling method for optical fiber and lens | |
| JPS59112206U (en) | shooting lens |