JPS6219822A - Lens assembly - Google Patents
Lens assemblyInfo
- Publication number
- JPS6219822A JPS6219822A JP60158284A JP15828485A JPS6219822A JP S6219822 A JPS6219822 A JP S6219822A JP 60158284 A JP60158284 A JP 60158284A JP 15828485 A JP15828485 A JP 15828485A JP S6219822 A JPS6219822 A JP S6219822A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- holder
- lens barrel
- barrel
- presser ring
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70808—Construction details, e.g. housing, load-lock, seals or windows for passing light in or out of apparatus
- G03F7/70825—Mounting of individual elements, e.g. mounts, holders or supports
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lens Barrels (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は一般には光学機器に係り、特に鏡筒にレンズを
組込んだし゛ンズ組立体に係るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention generally relates to optical equipment, and more particularly to a lens assembly in which a lens is assembled into a lens barrel.
［従来の技術］
レンズ鏡筒材料としてステンレス！Ｉ（線膨張係数１６
０Ｘ １０−７ ） 、黄銅（線膨張係数１９０ｘ １
０−７ ）等が使用されると、それらの線膨張係数はレ
ンズの線膨張係数（ＢＫ ７・・・７４ｘ １０−７
）と大きく異なるため外部の温度変化によりレンズに歪
が生じたり、レンズが偏心したりしてレンズの光学性能
が低下する。この問題を解消するには云うまでもなく鏡
筒の材料としてレンズの線膨張係数と同程度の材料、た
とえばセラミックス（８０Ｘ １０−７ ） 、ガラス
（７４Ｘ １０−７ ） 、カーボン（７０Ｘ １０−
７ ） 、チタン（８５Ｘ １０−７ ） 、ロジウム
（８５Ｘ １０−７ ）または白金ロジウム合金等を使
用してレンズ鏡筒を製作すればよい。従来このような材
料を使用してレンズＶｌ筒を製作するには第４図に示す
ように鏡筒内部にレンズ受け２を機械加工し、これにレ
ンズ５をエポキシ樹脂、光硬化型樹脂の接着剤で固定し
、接着剤が完全に硬化してから第５図に示すようにベル
クランクホルダー６を利用してレンズ５の心出しを行な
い、心出しをしたレンズを基準として鏡筒１の外径１ａ
および突当て面１ｂ、 ＩＣを加工工具７により切削ま
たは研削加工して仕上げていた（持ｔｉｊ昭５８−１７
１００９号参照）。[Conventional technology] Stainless steel is used as the lens barrel material! I (linear expansion coefficient 16
0x10-7), brass (linear expansion coefficient 190x1
0-7) etc. are used, their linear expansion coefficient is the linear expansion coefficient of the lens (BK 7...74x 10-7
), the lens may become distorted or decentered due to external temperature changes, reducing the optical performance of the lens. Needless to say, to solve this problem, the material for the lens barrel should be a material with a linear expansion coefficient comparable to that of the lens, such as ceramics (80X 10-7), glass (74X 10-7), carbon (70X 10-7), etc.
7), titanium (85X 10-7), rhodium (85X 10-7), platinum-rhodium alloy, or the like may be used to manufacture the lens barrel. Conventionally, in order to manufacture a lens Vl barrel using such a material, as shown in Fig. 4, a lens holder 2 is machined inside the lens barrel, and a lens 5 is bonded to this with epoxy resin or photocurable resin. After the adhesive is completely cured, center the lens 5 using the bell crank holder 6 as shown in FIG. Diameter 1a
and the abutment surface 1b, the IC was finished by cutting or grinding with a processing tool 7 (1986-17
(See No. 1009).
しかしレンズの線膨張係数と同程度の材料は一般に機械
加工が困難であるという問題がある。However, there is a problem in that materials having a coefficient of linear expansion comparable to that of the lens are generally difficult to machine.
［発明が解決しようとする問題点とその解決手段１本発
明は、上述の問題を解決し、特に膨張係数の小さい硝材
、例えば石英硝子（５ｘ １ｏ−ｙ ）に適した加工困
難な＃！Ｌ筒材筒材例えば石材、硝材、スーパーインバ
等に高精度でレンズを固定することを目的としている。[Problems to be Solved by the Invention and Means for Solving the Problems 1 The present invention solves the above-mentioned problems and is particularly suitable for glass materials with a small coefficient of expansion, such as quartz glass (5x 1o-y), which is difficult to process. The purpose of this lens is to fix the lens to a tube material such as stone, glass, super invar, etc. with high precision.
この目的は本発明に従って加工困難な硬質材料の鏡筒ま
たはレンズ保持体、この鏡筒またはレンズ保持体に固定
した加工容易な軟質材料の環状のレンズ受け、このレン
ズ受けに一側で衝合しているレンズ、このレンズの他側
に衝合して前記のレンズ受けから間隙をあけて離され、
そして前記の鏡筒レンズ保持体に固定した加工容易な軟
質材料のレンズ押え環ボルダ−１およびこのレンズ押え
環ホルダーに取外せるよう固定され、前記のレンズを保
持しているレンズ押え環を備え鏡筒またはレンズ保持体
の機械加工を回避してレンズを固定したレンズ組立体に
より達成される。The object of the present invention is to provide a lens barrel or lens holder made of a hard material that is difficult to process, an annular lens holder made of a soft material that is easy to process fixed to the lens barrel or lens holder, and a ring-shaped lens holder made of a soft material that is easy to process. a lens on the other side of the lens, abutting the other side of the lens and spaced apart from the lens receiver;
A lens holding ring boulder 1 made of a soft material that is easy to process is fixed to the lens barrel lens holder, and a lens holding ring is removably fixed to the lens holding ring holder and holds the lens. This is achieved by a lens assembly in which the lens is fixed, avoiding machining of the tube or lens holder.
［実施例］ 第１，２および３図に本発明の実施例を示す。[Example] Embodiments of the invention are shown in FIGS. 1, 2 and 3.
第１図において、１はスーパーインバ、石材、硝材等の
加工困難な硬質材料から成る鏡筒、２，３．４は加工容
易な頁らゆうのような材料から成る補助金具であり、２
はレンズ受け、３はレンズの押え環ボルダ−１そして４
はレンズの押え環である。In Fig. 1, 1 is a lens barrel made of a hard material that is difficult to process, such as super invar, stone, or glass; 2, 3, and 4 are auxiliary fittings made of a material that is easy to process, such as porcelain;
is the lens holder, 3 is the lens holding ring boulder - 1 and 4
is the lens holding ring.
５はレンズである。図に示すように、補助金具のレンズ
受け２とレンズ押え環ホルダー３とは別個の部品とし隙
間をあけて鏡筒に取付ける。補助金具の膨張係数の影響
を小さくするためである。補助金具２．３はレンズ鏡筒
１より膨張係数の大きな材質、例えば真ちゅう（１，８
Ｘ １０−５ ）を用いレンズ鏡筒１より外径を数μ大
きく加工しておく。鏡筒に補助金具を固定するときは補
助金具を冷水（５℃位）につける。一方レンズ鏡筒１を
熱湯（８０℃位）につけ、そして旋盤の主軸に取付けて
おく。テーブルに取付だ挿入棒で補助金具２，３を鏡筒
１に圧入する。5 is a lens. As shown in the figure, the lens holder 2 and the lens retaining ring holder 3 of the auxiliary fitting are separate parts and are attached to the lens barrel with a gap between them. This is to reduce the influence of the expansion coefficient of the auxiliary fittings. The auxiliary fitting 2.3 is made of a material with a larger expansion coefficient than the lens barrel 1, such as brass (1,8
The outer diameter of the lens barrel 1 is made several microns larger than that of the lens barrel 1 by using a lens (X 10-5 ). When fixing the auxiliary bracket to the lens barrel, soak the auxiliary bracket in cold water (about 5℃). Meanwhile, the lens barrel 1 is soaked in hot water (approximately 80° C.) and attached to the main shaft of a lathe. Press the auxiliary fittings 2 and 3 into the lens barrel 1 using the insertion rod attached to the table.
次にレンズ５を挿入し、最後にレンズの押え環４とレン
ズ押え環ホルダー３とを螺合させ、レンズ５を鏡筒１内
に固定する。Next, the lens 5 is inserted, and finally the lens retaining ring 4 and the lens retaining ring holder 3 are screwed together to fix the lens 5 within the lens barrel 1.
第２図の実施例では鏡筒１の内側にねじを切り、補助金
具２．３と鏡筒１とを螺合させて鏡筒内に補助金具２，
３を固定する。レンズ押え環ホルダー３とレンズの押え
環４を螺合してレンズ５を鏡筒１内に固定する。実施に
際しては補助金具の外径肉厚を２〜３ミリにして剛性を
弱くして補助金具の膨張の影響を小さくするのがよい。In the embodiment shown in FIG. 2, a thread is cut inside the lens barrel 1, and the auxiliary metal fitting 2.3 and the lens barrel 1 are screwed together, and the auxiliary metal fitting 2.3 is inserted into the lens barrel.
Fix 3. A lens holding ring holder 3 and a lens holding ring 4 are screwed together to fix a lens 5 within a lens barrel 1. In practice, it is preferable to set the outer diameter of the auxiliary metal fitting to 2 to 3 mm to reduce its rigidity and reduce the influence of expansion of the auxiliary metal fitting.
第３図は、板状のレンズ保持体１にレンズ５を取付けた
実施例を示す。補助金具２，３はレンズ保持体１に接着
材により固定し、レンズをこれらの補助金具２．３に嵌
め合せ、そしてレンズ押え環ホルダー３とレンズの押え
環４とを螺合させてレンズ５をレンズ保持体１に固定す
る。この実施例の場合旋盤加工用の主軸雇い６とバラン
ス板７どを取付で加工するとよい。FIG. 3 shows an embodiment in which a lens 5 is attached to a plate-shaped lens holder 1. The auxiliary fittings 2 and 3 are fixed to the lens holder 1 with an adhesive, the lens is fitted into these auxiliary fittings 2 and 3, and the lens holding ring holder 3 and the lens holding ring 4 are screwed together to secure the lens 5. is fixed to the lens holder 1. In this embodiment, it is preferable to attach the main spindle 6 and balance plate 7 for lathe processing.
第１，２図の実施例の場合当然圧入、ねじ込み、接着を
適宜組合せて使用することもできる。In the case of the embodiments shown in FIGS. 1 and 2, it is of course possible to use a suitable combination of press-fitting, screw-fitting, and adhesion.
［発明の効果］
本発明により膨張係数は小さいが加工困難な硬質材料の
鏡筒またはレンズ保持体へのレンズの精密取付けを、ｍ
筒またはレンズ保持体に機械加工することなく、または
最小限の簡単な機械加工をするだけで、実現することが
できる。更に、補助金具をレンズ受けとレンズ押え環ホ
ルダーを別個の部品として間隔をあけて配置しているの
で補助金具の膨張による影響は小さい。[Effects of the Invention] The present invention makes it possible to precisely attach a lens to a lens barrel or lens holder made of a hard material that has a small expansion coefficient but is difficult to process.
This can be achieved without machining the tube or lens holder, or with minimal simple machining. Furthermore, since the auxiliary metal fittings include the lens holder and the lens retaining ring holder as separate parts and are arranged at intervals, the influence of expansion of the auxiliary metal fittings is small.
第１図は本発明のレンズ組立体の第１の実施例の縦断面
図である。
第２図は本発明のレンズ組立体の第２の実施例の縦断面
図である。
第３図は本発明のレンズ組立体の第３の実施例である。
第４．５図は従来のレンズ組立体の縦断面図で、レンズ
の取付は過程を示す。
図中：
１：ｌｉ筒またはレンズ保持体、２：レンズ受け、３：
レンズ押え環ホルダー、
４：レンズの押え環、５：レンズ、
６：主軸雇い、７：バランス板。FIG. 1 is a longitudinal sectional view of a first embodiment of the lens assembly of the present invention. FIG. 2 is a longitudinal sectional view of a second embodiment of the lens assembly of the present invention. FIG. 3 shows a third embodiment of the lens assembly of the present invention. FIG. 4.5 is a longitudinal sectional view of a conventional lens assembly, showing the process of attaching the lens. In the diagram: 1: Li tube or lens holder, 2: Lens holder, 3:
Lens holding ring holder, 4: Lens holding ring, 5: Lens, 6: Main spindle, 7: Balance plate.
Claims (1)
のレンズ受け； このレンズ受けに一側で衝合しているレンズ；このレン
ズの他側に衝合して前記のレンズ受けから間隙をあけて
離され、そして前記のレンズ保持体に固定した加工容易
な軟質材料のレンズ押え環ホルダー；および このレンズ押え環ホルダーに取外せるよう固定され、前
記のレンズを保持しているレンズ押え環を備えたことを
特徴とするレンズ組立体。 ２、前記のレンズ保持体が鏡筒である特許請求の範囲１
項に記載のレンズ組立体。 ３、前記のレンズ保持体が板状体である特許請求の範囲
第１項に記載のレンズ組立体。 ４、前記のレンズ押え環が前記のレンズ押え環ホルダー
と螺合している特許請求の範囲第１、２または３項に記
載のレンズ組立体。[Claims] 1. A lens holder made of a hard material that is difficult to process; An annular lens holder made of a soft material that is easy to process fixed to this lens holder; A lens abutting the lens holder on one side; A lens holding ring holder made of an easy-to-process soft material that abuts the other side of the lens, is separated from the lens holder with a gap, and is fixed to the lens holder; and a lens holding ring holder that is attached to the lens holding ring holder. A lens assembly comprising a lens retaining ring removably fixed and holding the lens. 2. Claim 1, wherein the lens holder is a lens barrel.
The lens assembly described in section. 3. The lens assembly according to claim 1, wherein the lens holder is a plate-shaped body. 4. The lens assembly according to claim 1, 2 or 3, wherein the lens retaining ring is threadedly engaged with the lens retaining ring holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60158284A JPS6219822A (en) | 1985-07-19 | 1985-07-19 | Lens assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60158284A JPS6219822A (en) | 1985-07-19 | 1985-07-19 | Lens assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6219822A true JPS6219822A (en) | 1987-01-28 |
Family
ID=15668231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60158284A Pending JPS6219822A (en) | 1985-07-19 | 1985-07-19 | Lens assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6219822A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405109C (en) * | 2004-06-05 | 2008-07-23 | 鸿富锦精密工业（深圳）有限公司 | Lens assembling apparatus and assembling mthod |
| JP2010107954A (en) * | 2008-09-30 | 2010-05-13 | Fujinon Corp | Lens assembly and image-taking apparatus |
| WO2012070286A1 (en) * | 2010-11-24 | 2012-05-31 | アルプス電気株式会社 | Lens unit |
| JP2015169818A (en) * | 2014-03-07 | 2015-09-28 | ウシオ電機株式会社 | Lens unit and laser light source device |
-
1985
- 1985-07-19 JP JP60158284A patent/JPS6219822A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100405109C (en) * | 2004-06-05 | 2008-07-23 | 鸿富锦精密工业（深圳）有限公司 | Lens assembling apparatus and assembling mthod |
| JP2010107954A (en) * | 2008-09-30 | 2010-05-13 | Fujinon Corp | Lens assembly and image-taking apparatus |
| WO2012070286A1 (en) * | 2010-11-24 | 2012-05-31 | アルプス電気株式会社 | Lens unit |
| JPWO2012070286A1 (en) * | 2010-11-24 | 2014-05-19 | アルプス電気株式会社 | Lens unit |
| JP2015169818A (en) * | 2014-03-07 | 2015-09-28 | ウシオ電機株式会社 | Lens unit and laser light source device |
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