JPS6047062B2 - How to remove pitch from the lens - Google Patents
How to remove pitch from the lensInfo
- Publication number
- JPS6047062B2 JPS6047062B2 JP4274678A JP4274678A JPS6047062B2 JP S6047062 B2 JPS6047062 B2 JP S6047062B2 JP 4274678 A JP4274678 A JP 4274678A JP 4274678 A JP4274678 A JP 4274678A JP S6047062 B2 JPS6047062 B2 JP S6047062B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- pitch
- peeling
- ultrasonic vibration
- pitched
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
- B24B13/0057—Deblocking of lenses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
【発明の詳細な説明】
本発明はレンズ研磨時にレンズを治具に固定するため
のピッチをそのレンズの研磨後そのレンズから剥離する
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for peeling off a pitch for fixing a lens to a jig during lens polishing from the lens after polishing the lens.
従来、レンズからピッチを剥離する方法として冷凍法
が提案されている。Conventionally, a freezing method has been proposed as a method for peeling pitch from a lens.
この冷凍法は、ピッチ付レンズを低温室（−４０℃程度
）にて約１時間冷却することにより、レンズとピッチと
の収縮率の差に基づいてレンズかなピッチを剥離するも
のであるが、ピッチが剥離されたレンズを常温中に戻し
た際空気中の水分がレンズに凝縮付着する。レンズ表面
は水分に対して極めて弱く化学変化をおこし、いわゆる
レンズヤケ現象が生じ易い。 又レンズからピッチを剥
離する他の方法としてピッチ付レンズを高周波加熱する
ことによりピッチを熱溶解してピッチをレンズから剥離
する方法があるが、この方法においては、ピッチが熱溶
解される際煙霧が発生し作業者の健康に悪影響を及ぼす
こと、ピッチが溶けるためそのピッチをレンズから完全
に剥離するのが極めて面倒であること等の欠陥を有して
いた。 本発明は従来の方法の欠陥に鑑みて為されたも
ので、常温中においてピッチを何等溶かすことなくレン
ズから簡単に剥離し得る実用上極めて優れた方法を提供
しようとするものである。This freezing method involves cooling a pitched lens in a low-temperature room (approximately -40°C) for about an hour, and then peeling off the pitch of the lens based on the difference in shrinkage rate between the lens and the pitch. When the lens from which the pitch has been removed is returned to room temperature, moisture in the air condenses and adheres to the lens. The lens surface is extremely sensitive to moisture and undergoes chemical changes, which tends to cause so-called lens tanning. Another method for peeling off pitch from a lens is to heat the pitched lens with high frequency to melt the pitch and peel the pitch from the lens. This method has disadvantages such as the occurrence of abrasions, which have an adverse effect on the health of workers, and the fact that it is extremely troublesome to completely peel off the pitch from the lens because the pitch melts. The present invention was made in view of the deficiencies of the conventional methods, and it is an object of the present invention to provide a method which is extremely excellent in practice and which allows pitch to be easily peeled off from a lens at room temperature without any melting.
以下に本発明を具体化した一実施例を示す図面を参照
してその詳細を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of an embodiment of the present invention will be explained below with reference to the drawings.
図中１は治具、２はその治具１にピッチ３によつて固
定されたレンズ、４は研磨具である。In the figure, 1 is a jig, 2 is a lens fixed to the jig 1 with a pitch of 3, and 4 is a polishing tool.
而して研磨具４によりレンズ２を研磨した後、適宜の方
法により治具１からレンズ２をピッチ３が付着した状態
で取外す（第２図参照）。 次に、上記のようにして取
外されたピッチ付レンズに対し、超音波振動子５により
そのピッチ部分３に超音波振動を付与すると、ピッチ３
及びレンズ２の双方に内部応力が生じ、超音波振動の性
質上特にレンズ２とピッチ３の接合部に大きな内部応力
が生じるのでレンズ２からピッチ３が簡単に剥離される
。After polishing the lens 2 with the polishing tool 4, the lens 2 with the pitch 3 attached thereto is removed from the jig 1 by an appropriate method (see FIG. 2). Next, when the ultrasonic vibrator 5 applies ultrasonic vibration to the pitch portion 3 of the pitched lens removed as described above, the pitch 3
Internal stress is generated in both the lens 2 and the lens 2, and due to the nature of ultrasonic vibration, a large internal stress is generated particularly at the junction between the lens 2 and the pitch 3, so that the pitch 3 is easily separated from the lens 2.
本実施例によれは、常温中て剥離作業を為し得作業者
、レンズに悪影響を与えることがなく、またピッチが溶
けずにレンズとの接合部から完全に剥離されるのでレン
ズ及びピッチの後処理が容易であり、また更に数秒間の
超音波振動の付与によりピッチをレンズから剥離し得極
めて能率的である等の幾多の優れた効果を奏する。According to this embodiment, the peeling work can be performed at room temperature without adversely affecting the operator or the lens, and since the pitch is completely peeled off from the joint with the lens without melting, the lens and pitch can be removed. It has many excellent effects, such as easy post-processing and being extremely efficient in peeling off the pitch from the lens by applying ultrasonic vibration for several seconds.
尚、本実施例においては、レンズ２からピッチ３を剥
離する際ピッチ部分３に超音波振動子５を当接させて超
音波振動を付与しているが、レンズ部分２、又はレンズ
とピッチとの接合部分に超音波振動子５を当接させて超
音波振動を付与しても同様の効果を得ることができる。In this embodiment, when peeling the pitch 3 from the lens 2, the ultrasonic vibrator 5 is brought into contact with the pitch portion 3 to apply ultrasonic vibration. A similar effect can be obtained by applying ultrasonic vibration by bringing the ultrasonic vibrator 5 into contact with the joint portion of the two.
本発明は以上詳述したように、ピッチの付着したレンズ
に対し、ピッチ部分及び若しくはレンズ部分に超音波振
動を付与することにより、レンズからピッチを剥離させ
るようにしたもので、常温中てその剥離作業を為し得る
故レンズヤケ現象が生ずることなく、作業環境も良く、
また短時間にてレンズからピッチを完全に剥離すること
ができ極めて能率的である等幾多の優れた効果を奏する
ものである。As described in detail above, the present invention is designed to peel off the pitch from the lens by applying ultrasonic vibration to the pitch portion and/or the lens portion of the lens to which the pitch has adhered. The work environment is good and there is no lens burning phenomenon that can occur during peeling work.
Furthermore, the pitch can be completely peeled off from the lens in a short period of time, making it extremely efficient and exhibiting many excellent effects.
第１図はレンズ研磨装置の概略図、第２図は治具から取
外されたピッチ付レンズを示す図、第３図はピッチ付レ
ンズに超音波振動を付与する状態を示す説明図である。Fig. 1 is a schematic diagram of a lens polishing device, Fig. 2 is a diagram showing a pitched lens removed from a jig, and Fig. 3 is an explanatory diagram showing a state in which ultrasonic vibration is applied to a pitched lens. .
Claims (1)
対し、そのレンズ部分及び若しくはピッチ部分に超音波
振動を付与してレンズからピッチを剥離するようにした
ことを特徴とするレンズからのピッチ剥離方法。1. Pitch peeling from a lens, characterized by applying ultrasonic vibration to the lens portion and/or pitch portion of the pitched lens peeled from the jig after lens polishing to peel the pitch from the lens. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4274678A JPS6047062B2 (en) | 1978-04-12 | 1978-04-12 | How to remove pitch from the lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4274678A JPS6047062B2 (en) | 1978-04-12 | 1978-04-12 | How to remove pitch from the lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54134892A JPS54134892A (en) | 1979-10-19 |
| JPS6047062B2 true JPS6047062B2 (en) | 1985-10-19 |
Family
ID=12644569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4274678A Expired JPS6047062B2 (en) | 1978-04-12 | 1978-04-12 | How to remove pitch from the lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047062B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63298504A (en) * | 1987-05-29 | 1988-12-06 | Fanuc Ltd | Programmable controller |
-
1978
- 1978-04-12 JP JP4274678A patent/JPS6047062B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63298504A (en) * | 1987-05-29 | 1988-12-06 | Fanuc Ltd | Programmable controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54134892A (en) | 1979-10-19 |
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