JPS5950409A - Production of decorative diffraction grating - Google Patents
Production of decorative diffraction gratingInfo
- Publication number
- JPS5950409A JPS5950409A JP16191282A JP16191282A JPS5950409A JP S5950409 A JPS5950409 A JP S5950409A JP 16191282 A JP16191282 A JP 16191282A JP 16191282 A JP16191282 A JP 16191282A JP S5950409 A JPS5950409 A JP S5950409A
- Authority
- JP
- Japan
- Prior art keywords
- diffraction grating
- spread
- incident
- light
- plate
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1857—Manufacturing methods using exposure or etching means, e.g. holography, photolithography, exposure to electron or ion beams
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Holo Graphy (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、三光束干渉の記録によって製造するポログ
ラフィック回折格子の光学系において一光束または、三
光束を格、子が生成される方向とは直角方向に拡散する
光束にすることにより、反射および透過する光が広がり
を持つ回折格子を製造する方法に関するものて゛ある。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an optical system for a porographic diffraction grating manufactured by recording three-beam interference, in which one beam or three beams are lattice, and the beams are diffused in a direction perpendicular to the direction in which the beams are generated. There is a method for manufacturing a diffraction grating in which the reflected and transmitted light is spread.
従来、通常の平面で、ピッチの等しい回折格子に平行光
線を入射した時に、回折による透過あるいは反射する光
は、ある一定方向に限られている。Conventionally, when parallel light rays are incident on a normal flat diffraction grating with equal pitches, the light that is transmitted or reflected due to diffraction is limited to a certain direction.
このため、装飾用に５通常の回折格子を用いた場合、あ
る特定の方向で゛しか回折光が見られず、視覚にうった
える範囲が狭いという欠点を持って（・る。For this reason, when a normal diffraction grating is used for decoration, the diffracted light can only be seen in a certain direction, which has the disadvantage that the range that is visually appealing is narrow.
本発明は、白色光が色分解する方向と直角方向に光を分
散させるようにすることで、この欠点を取り除き視覚に
うったえる範囲を広くしたものである。The present invention eliminates this drawback and widens the range that is visually appealing by dispersing the light in a direction perpendicular to the direction in which white light is separated into colors.
以下、図面に示す実施例を参照しながら本発明を説明す
る。第１図に示す如（レーザー光発振器（１，＋から発
するレーザー光は、平面鏡（２）を介し、ノ入−フミラ
ー（３）によって、２つの光束に分けられ。The present invention will be described below with reference to embodiments shown in the drawings. As shown in FIG. 1, a laser beam emitted from a laser beam oscillator (1, +) passes through a plane mirror (2) and is divided into two beams by an input mirror (3).
１つはミラー（４）を介して、レンズ（６）を通って広
げられ、一方向性拡散板（８）に入射し、図に示すよう
に０１の広がりをもって拡散し、写真乾板（９）に入射
する。この時の拡散方向は５回折格子のピッチの方向と
直角をなす方向である。それは、もし、回折格子のピッ
チの方向と同じ方向、つまり色分解がおこる方向に拡散
すれば、できた回折格子に白色光を入射した時、各々の
色が重ブｆって、白色になってしまい、視覚にうったえ
ろ色の役割をなくしてしまうためである。One is spread out through a mirror (4), passes through a lens (6), enters a unidirectional diffuser plate (8), is diffused with a spread of 01 as shown in the figure, and is spread out on a photographic plate (9). incident on . The diffusion direction at this time is a direction perpendicular to the pitch direction of the five diffraction gratings. This means that if white light is diffused in the same direction as the pitch of the diffraction grating, that is, in the direction in which color separation occurs, when white light is incident on the resulting diffraction grating, each color will overlap and become white. This is because the role of bright colors, which are visually appealing, is lost.
もう１つの光束は、ミラー（５）を介してレンズ（７）
によって拡がり、写真乾板（９）に入射する。この写真
乾板上では、上記の２光束による干渉縞がてきていて、
この干渉縞を記録することにより、拡散性を持つ回折格
子を作製する。このようにして作製した回折格子に作製
時と同じ光（１０１を入射させたときの拡散角θ２は１
作製時の一方向性拡散板（８）上の１点からの広がる角
θ１が写真乾板（９）をすべてカバーする広がりを持つ
ものとし、さらに、写真乾板（９）と一方向性拡散板（
８）との距離なＬとし、一方向性拡散板（８１の大きさ
をＷとすると。The other beam passes through the mirror (5) to the lens (7).
The light spreads out and enters the photographic plate (9). On this photographic plate, there are interference fringes caused by the two light beams mentioned above.
By recording these interference fringes, a diffraction grating with diffusive properties is created. The diffusion angle θ2 when the same light (101) as at the time of fabrication is incident on the diffraction grating fabricated in this way is 1
The widening angle θ1 from one point on the unidirectional diffuser plate (8) at the time of manufacture shall have a width that covers the entire photographic plate (9), and furthermore, the photographic plate (9) and the unidirectional diffuser plate (
8), and the size of the unidirectional diffuser plate (81) is W.
−＋ Ｗ θ２−２ ｊ ａｎ ２丁 で与えられる。−＋ W It is given by θ2-2 j an 2 pieces.
また、一般に、太陽光のような平行白色光を入射すると
、０２よりはわずかに狭いひろがりを持って虹の７色に
見ることができる。Generally, when parallel white light such as sunlight is incident, the seven colors of the rainbow can be seen with a slightly narrower spread than 02.
本発明により、視域の広い回折格子が実現され、ディス
プレーの分野で利用でき、産業上有効なものである。According to the present invention, a diffraction grating with a wide viewing range is realized, which can be used in the field of displays and is industrially effective.
以下、本発明の実施例を示す。Examples of the present invention will be shown below.
〈実施例〉
レーサー光発振器としてＩ−１ｅ −Ｎ ｅレーザー、
一方向性拡散板には、レンチキュラーシートを、そして
写真乾板にレエ、アグファーゲバルト社の８Ｅ ７５
ＨＩ）乾板を用いて、２光束の干渉縞を撮影し、コダノ
ク社処方のＤ−１９の現像液で現像処理し、アグファゲ
バルト社処方のＱｐ−４３１の漂白液で漂白を行ない、
拡散性のある回折格子を製造した。<Example> I-1e-N e laser as a laser light oscillator,
A lenticular sheet was used as the unidirectional diffuser plate, and 8E 75 from Agfagewald was used as the photographic plate.
HI) Using a dry plate, photograph the interference fringes of two beams, develop with D-19 developer prescribed by Kodanok, bleach with Qp-431 bleaching solution prescribed by Agfagewald,
A diffraction grating with diffusive properties was manufactured.
また、一方向性拡散板として、レンチキュラーシートの
代りに、ホログラフインクに作製したホログラフインク
スクリーンを利用することも可能である。さらにまた、
両・、方の光束に一方向性拡散板を挿入することにより
、より広い拡散性を持つ回折格子を作ることができる。Further, as a unidirectional diffusion plate, it is also possible to use a holographic ink screen made of holographic ink instead of a lenticular sheet. Furthermore,
By inserting a unidirectional diffuser plate into both beams, a diffraction grating with wider diffusivity can be created.
図面は、本発明の実施例を示すものて、第１図は記録構
成を示す説明図である。
（１）・・・レーザー光発振器 ＋２１ Ｆ４＋ （５
１・・・平面鏡 （３）・・・ハーフミラ−（Ｇ） （
７ｉ・・・レンズ （８）・・・一方向性拡散板 （９
）・・写↓゛ル乾板 （１Ｆ１１・・・レンズ７がらの
発散光特許出願人
凸版印刷株式会社The drawings show embodiments of the present invention, and FIG. 1 is an explanatory diagram showing the recording configuration. (1)...Laser light oscillator +21 F4+ (5
1...Plane mirror (3)...Half mirror (G) (
7i... Lens (8)... Unidirectional diffuser plate (9
)... Photo↓゛ plate (1F11... Diverging light from lens 7 Patent applicant Toppan Printing Co., Ltd.
Claims (1)
通常の回折格子の回折による透過および反射する光線を
含む面内に広がりを持つことを特徴とする装飾用回折格
子の製造方法。1) Manufacture of a decorative diffraction grating characterized in that the transmitted, reflected and diffracted light is spread in a plane that is perpendicular to the incident plane and includes the transmitted and reflected light rays due to diffraction of a normal diffraction grating. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16191282A JPS5950409A (en) | 1982-09-17 | 1982-09-17 | Production of decorative diffraction grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16191282A JPS5950409A (en) | 1982-09-17 | 1982-09-17 | Production of decorative diffraction grating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5950409A true JPS5950409A (en) | 1984-03-23 |
| JPS6223313B2 JPS6223313B2 (en) | 1987-05-22 |
Family
ID=15744377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16191282A Granted JPS5950409A (en) | 1982-09-17 | 1982-09-17 | Production of decorative diffraction grating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950409A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61137102A (en) * | 1984-12-07 | 1986-06-24 | Toppan Printing Co Ltd | Patterning method of diffraction grating |
| EP0251815A2 (en) * | 1986-07-04 | 1988-01-07 | Graham Tremlett Ridout | A decorative surface and a method of producing it |
| JPH01196003A (en) * | 1988-02-01 | 1989-08-07 | Dainippon Printing Co Ltd | Manufacture of decoration body with diffraction effect |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4864945A (en) * | 1971-12-08 | 1973-09-07 |
-
1982
- 1982-09-17 JP JP16191282A patent/JPS5950409A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4864945A (en) * | 1971-12-08 | 1973-09-07 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61137102A (en) * | 1984-12-07 | 1986-06-24 | Toppan Printing Co Ltd | Patterning method of diffraction grating |
| EP0251815A2 (en) * | 1986-07-04 | 1988-01-07 | Graham Tremlett Ridout | A decorative surface and a method of producing it |
| JPH01196003A (en) * | 1988-02-01 | 1989-08-07 | Dainippon Printing Co Ltd | Manufacture of decoration body with diffraction effect |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6223313B2 (en) | 1987-05-22 |
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