JPS6336201A - Optical parts - Google Patents
Optical partsInfo
- Publication number
- JPS6336201A JPS6336201A JP61180320A JP18032086A JPS6336201A JP S6336201 A JPS6336201 A JP S6336201A JP 61180320 A JP61180320 A JP 61180320A JP 18032086 A JP18032086 A JP 18032086A JP S6336201 A JPS6336201 A JP S6336201A
- Authority
- JP
- Japan
- Prior art keywords
- prism
- adhesives
- light
- faces
- sand
- 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
- 230000003287 optical effect Effects 0.000 title claims description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 238000002834 transmittance Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 abstract description 7
- 239000004576 sand Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
Landscapes
- Surface Treatment Of Optical Elements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は精密光学機器の組立における、ガラス製光学部
品（プリズムなど）の固定方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for fixing glass optical components (prisms, etc.) in the assembly of precision optical instruments.
従来の技術
プリズムなどのガラス製光学部品を保持部品（ホルダー
など）や基台に固定する方法には枠体などで押える機構
的方式と、接着剤を用いる接着方式が有る。Conventional techniques There are two methods for fixing a glass optical component such as a prism to a holding component (such as a holder) or a base: a mechanical method in which the optical component is held down with a frame, etc., and an adhesive method in which an adhesive is used.
本発明は紫外線硬化型接着剤によるプリズムの固定に関
するものであり、この方式においての従２ ・ −
米の技術を以下に説明する。The present invention relates to fixing a prism using an ultraviolet curable adhesive, and the technique used in this method will be explained below.
紫外線硬化型接着剤には大別して次の三通りのタイプが
ある。There are three main types of UV-curable adhesives:
■ 硬化部分に全面照射を必要とするタイプ■ 部分照
射で硬化反応が始１す、全面に硬化が進行するタイプ
■ 紫外線照射と加熱を併用するタイプ以上の各特質は
、■、■の両タイプは硬化後、相当の硬質状態となるた
め光学部品にストレスをＪ５える場合が多く、また、二
液混合型が主流である。■ A type that requires full-surface irradiation of the cured area ■ A type in which the curing reaction begins with partial irradiation and curing progresses over the entire surface ■ A type that uses both ultraviolet irradiation and heating ■ Both types have the following characteristics: ■ and ■ After curing, it becomes quite hard, which often places stress on optical components, and two-component mixture types are the mainstream.
ガラス製光学部品の接着は、硬化後、適度の可撓性が必
要であり、同時にポット・ライフを考慮すると一液型が
望ましく、■のタイプにこの特質を有するものが多い。Adhesion of glass optical parts requires appropriate flexibility after curing, and at the same time, considering pot life, a one-component type is preferable, and many of the type (3) have this characteristic.
発明が解決し」：うとする問題点
プリズムの固定に先述の全面照射型を用いるためには、
接着剤硬化部分、即ち、プリズムと被着体との接合面に
高率の紫外線照射を行なう必要があり、そのためには、
紫外線の透過光路となる受３ ・−７
光面および接着面は光透過率の良い鏡面研摩を施してお
く必要がある。The invention solves the problem: In order to use the above-mentioned full-surface irradiation type for fixing the prism,
It is necessary to irradiate the adhesive hardening part, that is, the bonding surface between the prism and the adherend, with a high rate of ultraviolet rays.
The receiver 3/-7 optical surface and adhesive surface, which serve as the transmission optical path of ultraviolet rays, must be mirror-polished to have good light transmittance.
即ち、受光面および接着面が個片切出しの状態である砂
層シ面のま＼では、紫外線透過量が不足し、不完全硬化
現象を起すのである。That is, when the light-receiving surface and the adhesive surface are still in the sand layer surface where they are cut out into individual pieces, the amount of ultraviolet light transmitted is insufficient, resulting in incomplete curing.
一方、プリズムの生産加工を考えると、定尺から個片に
切断する工法の場合、切断面は砂磨り状で残るため、こ
の面で接着を希望する場合は、先の理由から、更に研摩
加工を加える必要があり、コスト面で不利な状況を呈し
ていた。On the other hand, considering the production and processing of prisms, if the method involves cutting them into individual pieces from a standard length, the cut surface will remain in a sand-like state, so if you wish to bond on this surface, it is necessary to further polish it for the reasons mentioned above. This presented a disadvantageous situation in terms of cost.
本発明は、全面照射を必要とする紫外線硬化型接着剤を
用い、プリズムなどの光学部品を接着する場合において
、当該プリズムへの予備加工としての光透過光路に掛か
る面（受光面、接着面）への鏡面研摩加工を省略し、プ
リズム生産過程において生じた砂層シ面のま＼で、簡便
な処理を施すことにより、紫外線透過を可能にし、生産
コストの低減を図ることを目的とするものである。When bonding optical parts such as prisms using an ultraviolet curable adhesive that requires full-surface irradiation, the present invention provides preliminary processing to the prism on the surface (light-receiving surface, bonding surface) that hangs on the light transmission optical path. The purpose is to omit the mirror polishing process on the prism and simply apply a treatment to the surface of the sand layer generated during the prism production process, making it possible to transmit ultraviolet rays and reducing production costs. be.
問題点を解決するだめの手段
上記従来の問題点を解決するために本発明は紫外線の透
過面で、個片切出し時の切断面のため砂磨り状になって
いる表面に、通常、複数のプリズムからなるガラス光学
部品の接着組立に使用する紫外線硬化型光透過性接着剤
を皮膜状に０．２〜０．３順の厚さに塗布し、硬化させ
、この面を疑似的な鏡面に形成し、硬化用の紫外線透過
率の向上を図るものである。Means for Solving the Problems In order to solve the above-mentioned problems of the conventional art, the present invention provides a surface that transmits ultraviolet rays and has a sand-like surface due to the cut surface when cutting out individual pieces. An ultraviolet-curable light-transmitting adhesive used for bonding and assembling glass optical parts such as prisms is applied in the form of a film to a thickness of 0.2 to 0.3, and cured to create a pseudo-mirror surface. This is intended to improve the transmittance of ultraviolet rays for curing.
作用 上記手段による本発明の作用は次のようになる。action The effects of the present invention using the above means are as follows.
即ち、プリズムの砂磨り面は乱反射により光透過率が極
端に低く、プリズム本体への光透過は不可能である。し
かし、上記砂磨り面の微小凸凹面を透明の液体が覆うこ
とにより、その表面は透明となって、透過率が大幅に改
善される。この原理を応用し、砂磨り面に、硬化後も光
透過性を有する紫外線接着剤を０．２〜０．３１１１１
１１の厚さに塗布し、硬化させ、疑似的な鏡面を形成し
て光透過率を向上させるものである。That is, the sand-polished surface of the prism has extremely low light transmittance due to diffuse reflection, making it impossible for light to pass through the prism body. However, by covering the minute unevenness of the sand-polished surface with a transparent liquid, the surface becomes transparent and the transmittance is greatly improved. Applying this principle, a UV adhesive of 0.2 to 0.31111%, which remains light-transparent even after curing, is applied to the sand-polished surface.
It is applied to a thickness of 11 mm and cured to form a pseudo-mirror surface to improve light transmittance.
実施例 以下、本発明の実施例を図面を用いて説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
６パ−ノ゛
精密光学機器には数種のガラス製光学部品が使用されて
いるが、各個片を機器内に組み込む方法として接着剤が
多く用いられている。Several types of glass optical components are used in six-percent precision optical instruments, and adhesives are often used as a method of assembling each individual piece into the instrument.
第１図は本発明による一実施例であるが、従来の技術の
項にも記述した全面照射型の紫外線硬化型接着剤を用い
て保持具２にプリズム１を接着した状態である。FIG. 1 shows an embodiment according to the present invention, in which a prism 1 is bonded to a holder 2 using the entire surface irradiation type ultraviolet curable adhesive described in the prior art section.
このプリズムはＡ−Ｉ）面が個片切出しの状態で、砂層
シ面であり、Σ面のみ全反射ミラーとなっている。In this prism, the A-I) surface is a sand layer surface, and only the Σ surface is a total reflection mirror.
プリズムと保持具との接着は紫外線照射を行なうが、そ
の様子を模擬的に第２図に示した。図中、３は紫外線照
射ランプである。The prism and the holder are bonded together by irradiation with ultraviolet light, which is shown in FIG. 2 in a simulated manner. In the figure, 3 is an ultraviolet irradiation lamp.
図のプリズムは、第１図にある様に、Ａ−Ｄの４面は個
片切出しの状態の砂磨り面となっていて、Ｒ面は全反射
ミラーである。しかし、このプリズムの組み込まれた機
器は、環境温度変化の激しい使い方が予測されるため、
プリズムのガラス材と保持具のアルミ材の線膨張差によ
るストレスを吸収するために、可撓性を有する接着剤を
使うこと６へ一ノ
が必要である。As shown in FIG. 1, the prism shown in the figure has four surfaces A to D which are sand-ground surfaces cut out into individual pieces, and the R surface is a total reflection mirror. However, devices with built-in prisms are expected to be used with drastic environmental temperature changes, so
In order to absorb the stress caused by the difference in linear expansion between the glass material of the prism and the aluminum material of the holder, it is necessary to use a flexible adhesive.
可撓性を有する接着剤で、且つ、硬化時間の短かい接着
剤を選択すると、先述よシの全面照射を必要とする紫外
線硬化型となる。先のプリズムは、５面金てが、光を透
さない面であるため、このままではプリズムと保持具の
接合面、即ちＢ面に接着剤を塗布しても、紫外線が透過
しないため、硬化反応は起きない。ただし、砂磨り面と
は言え、数％の透過は得られるが、光量不足であること
は言うまでもない。If you select an adhesive that is flexible and has a short curing time, it will be an ultraviolet curing type that requires the entire surface to be irradiated as described above. The prism mentioned above has five metal surfaces that do not allow light to pass through, so even if adhesive is applied to the joint surface between the prism and the holder, that is, the B side, UV rays will not pass through it, so it will not harden. No reaction occurs. However, even though it is a sand-polished surface, it can transmit a few percent, but it goes without saying that the amount of light is insufficient.
この時の対策法として、従来から採用されている手法と
しては、当該プリズムのＡ、Ｂの２面を鏡面の追加研摩
を施し、上面からの紫外線光の透過を図ることによって
、Ｂ面に塗布した接着剤を硬化させていた。この場合の
問題点としては、２面の研摩工数の発生であシ、価格−
納期に少なからずの悪影響をもたらしていた。As a countermeasure in this case, the conventionally adopted method is to perform additional mirror polishing on the two sides A and B of the prism, to allow ultraviolet light to pass through from the top surface, and then apply coating to the B side. The adhesive was being cured. The problems in this case include the number of man-hours required for polishing two surfaces, and the cost
This had a considerable negative impact on delivery times.
本発明を実施する場合、まず、プリズムの表面に光透過
性を有する透明の紫外線硬化型接着剤を０．２・〜０．
３１ｆｆ厚を塗布し硬化させる。この処理を７ ″
施すことにより、第３図に示したように、接着剤４が砂
磨り面を覆って、疑似的な鏡面とカリ、光を透過するよ
うな面が形成される。この時に使用する接着剤は、２個
の三角プリズムで作られる偏光ビーム・スプリッターの
貼合せに用いるものと同種が良い。When carrying out the present invention, first, a transparent ultraviolet curable adhesive having light transmittance is applied to the surface of the prism in an amount of 0.2 to 0.
Apply 31ff thickness and cure. By applying this treatment for 7'', the adhesive 4 covers the sand-polished surface, forming a pseudo-mirror surface and a surface that transmits light, as shown in Figure 3. The adhesive used is preferably the same type as that used for bonding a polarizing beam splitter made of two triangular prisms.
Ｂ面の接着面は、当該処理を必要としない。伺故なら、
Ａ面に処理をした原理と同じことが成立するので、第４
図に示す様に、接着剤５をプリズム１と保持具６の間に
塗布すれば、硬化させることなく、Ｂ面は透明状態とな
り、紫外線の透過を図ることができるのである。The adhesive surface of side B does not require this treatment. If you have a question,
The same principle holds true for processing side A, so the fourth
As shown in the figure, if the adhesive 5 is applied between the prism 1 and the holder 6, the B side becomes transparent without being hardened, allowing ultraviolet rays to pass therethrough.
以上のように、光透過の困難な表面状態のプリズムにお
いても、研摩などの工数を必要とすることなく、本発明
による簡便な処理によって、プリズムを通して、その接
着面に光透過を可能とするのである。As described above, even for prisms with surface conditions that make it difficult to transmit light, light can be transmitted through the prism to its adhesive surface by the simple processing according to the present invention, without the need for polishing or other man-hours. be.
発明の効果
以上の実施例から明らかなように本発明は個片切出し後
の砂磨り面に紫外線硬化型光透過性接着剤を皮膜状に塗
布し、硬化させることにより光透過率の低い砂磨り面を
疑似的に鏡面にし、光透過率の改善を図ってなるもので
あるので製造工程を簡便な工程にすることができ、大幅
な生産コストの低減に貢献できる。Effects of the Invention As is clear from the above embodiments, the present invention applies an ultraviolet curable light-transmissive adhesive in the form of a film to the sand-polished surface after cutting out individual pieces, and cures the sand-polishing agent. Since the surface is made into a pseudo-mirror surface to improve light transmittance, the manufacturing process can be simplified, contributing to a significant reduction in production costs.
第１図は本発明の実施例の光学部品の斜視図、第２図は
同部品を接着する様子を示す側面図、第３図、第４図は
同紫外線の透過状態を示す拡大図である。
１・・・・・・プリズム、２・・・・・・保持具、３・
・・・・・紫外線照射ランプ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名−一
（’ｙｒワ ＼ト め
Ｏ
ｑミ
、）
＼Ｊ
寸
憾 城FIG. 1 is a perspective view of an optical component according to an embodiment of the present invention, FIG. 2 is a side view showing how the same component is bonded, and FIGS. 3 and 4 are enlarged views showing the state of transmission of ultraviolet rays. . 1... Prism, 2... Holder, 3.
・・・・・・Ultraviolet irradiation lamp. Name of agent: Patent attorney Toshio Nakao and 1 other person
Claims (1)
剤を皮膜状に塗布し、硬化させることにより光透過率の
低い砂磨り面を疑似的に鏡面にし、光透過率の改善を図
ってなる光学部品。After cutting out the individual pieces, a UV-curable light-transmitting adhesive is applied in the form of a film to the sand-ground surface, and by curing it, the sand-ground surface with low light transmittance becomes a pseudo-mirror surface, improving light transmittance. Optical parts that are designed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61180320A JPS6336201A (en) | 1986-07-31 | 1986-07-31 | Optical parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61180320A JPS6336201A (en) | 1986-07-31 | 1986-07-31 | Optical parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6336201A true JPS6336201A (en) | 1988-02-16 |
Family
ID=16081148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61180320A Pending JPS6336201A (en) | 1986-07-31 | 1986-07-31 | Optical parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6336201A (en) |
-
1986
- 1986-07-31 JP JP61180320A patent/JPS6336201A/en active Pending
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