JPS5985780A - Laser marking device - Google Patents
Laser marking deviceInfo
- Publication number
- JPS5985780A JPS5985780A JP57196225A JP19622582A JPS5985780A JP S5985780 A JPS5985780 A JP S5985780A JP 57196225 A JP57196225 A JP 57196225A JP 19622582 A JP19622582 A JP 19622582A JP S5985780 A JPS5985780 A JP S5985780A
- Authority
- JP
- Japan
- Prior art keywords
- laser
- lenses
- mark
- group
- marking
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【発明の詳細な説明】
不発明はレーザ光を利用して金属、プラスチックス、セ
ラミックス、木材等に文字、記号等を伺与するレーザマ
ーキング装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laser marking device that uses laser light to mark characters, symbols, etc. on metals, plastics, ceramics, wood, etc.
一般に小形の部品類に品名、ロット香号等の表示を行な
うのに、捺印がよく用いられているが、これはインクの
むら、捺印後のインクの剥離等によシマークの識別が困
難となる場合がある。そこで最近はレーザ光を利用して
部品に非接触で表面の一部を溶融加工または蒸発加工を
行ってマーキングすることが行われるようになった。レ
ーザ光によるマーキングは、捺印に比較してマークにむ
ら、がなく、また剥離による不鮮門化も生じず、さらに
非接触であるため対象物を汚したシ傷つけることがなく
、非常に優れた方法といえる。現在、レーザマーキング
には、レー−り光を点状に集光してドツトマークとし、
これを適当に八譲りする方法と、マスクを用いてマスク
の窓部を通過したレーザ光によシマーキングを行う方法
の２つの方法がある。このうち前者の方法はマー痔゛ン
グを行うレーザパルスを時系列的に発生させてレーツビ
ームをスキャンしたり、あるいは対象物をＸ−Ｙに移動
したシするため時間を要する。後者は第１図に示すよう
に一つのレーザ光１でマスク２全而にレーザ光を照射し
てマーキングするため、マスク２の窓部以外の部分（斜
線部）に照射されたレーザ光は無駄になってしまい余分
々レーザ光のエネルギーが必要となる。また一般にレー
ザビー人は中６部から周辺に行くに従ってエネルギー密
度が低くなっているため、マスクによる方法ではマーク
の中心部から周辺にかけて濃度のするマークとなり易い
。In general, stamping is often used to display product names, lot numbers, etc. on small parts, but this may be difficult to identify due to unevenness of the ink or peeling of the ink after stamping. There is. Therefore, recently, laser beams have been used to mark part of the surface of parts by melting or evaporating them without contacting them. Compared to stamping, marking with laser light does not cause uneven marks, does not cause unsightly marks due to peeling, and since it is non-contact, it does not stain or damage the target object, making it extremely superior. It can be said to be a method. Currently, laser marking is done by concentrating laser light into a dot shape to make a dot mark.
There are two methods: a method in which this is done appropriately, and a method in which shimmering is performed using a mask using a laser beam that passes through a window of the mask. The former method requires time because laser pulses for marking are generated in time series to scan the laser beam, or the object is moved in the X-Y direction. As shown in Figure 1, the latter uses one laser beam 1 to irradiate the entire mask 2 for marking, so the laser beam irradiated to areas other than the windows (hatched areas) of the mask 2 is wasted. As a result, extra laser beam energy is required. Furthermore, in general, the energy density of laser beams decreases from the middle 6th part to the periphery, so the method using a mask tends to result in a mark with a higher concentration from the center to the periphery.
したがって不発明の目的はこれらの欠点をなくし、レー
ザエネルギーを有効に利用でき、更にはレーザマーキン
グ装置に使われるレーザ発振器の小形化、安全性の向上
およびコストダウンを図ることのできるレーザマーキン
グ装置を提供することに４ちる。Therefore, the purpose of the invention is to eliminate these drawbacks, to create a laser marking device that can effectively utilize laser energy, and further downsize the laser oscillator used in the laser marking device, improve safety, and reduce costs. 4 chiru to offer.
本虻明によれば、レーザ光を用いて被加工物表面に文字
、記号等のマーク金伺与するレーザマーキング装置にお
いて、レーザ発振器と被加工物との間に複数の柱状レン
ズを配積し、その複数の柱状レンズの組み合せによって
被加工物表面上にマークを形成するレーザマーキング装
置４が得られる。According to the present invention, a plurality of columnar lenses are arranged between a laser oscillator and a workpiece in a laser marking device that uses a laser beam to place marks such as letters and symbols on the surface of a workpiece. A laser marking device 4 that forms marks on the surface of a workpiece is obtained by combining the plurality of columnar lenses.
以］ζ不発明の実施例について図面を参照して説明する
。Hereinafter] Examples of the invention will be described with reference to the drawings.
第２図は本発明によるレーザマーキング装置を説明する
図で、レーザ発振器（図示せず）がらのコリメートされ
たレーザビーノーｉｏｉ第１のカマボコ形柱状レンズ１
１°ｆ２１〜２４へ入射させ、さらにこの第１のレンズ
群とは集束方向が異なる第２のカマボコ形柱状しンズ群
２５ 、２６によってマーキイグ位置に帯状に絞るもの
である。レンズ２１に照射されたビームはレンズ２１の
焦点１５に向って絞シ込まれる。他のカマボコ形柱状レ
ンズ２１゜２３．２４はレンズ２１とは異った焦点距離
を有しその光軸は互いに平行である。まずレンズ２１を
辿過しだビーム１０は縦方向に絞られレンズ２５へ入射
し、さらにこのレンズ２５によって横方向に絞り込まれ
てマーク位置ではマーク部分１１を形成する。凍だレン
ズ２２．２３．２４ｆｆｉ通過したビーノ・はおのおの
縦方向に絞られ、さらにレンズ２６によって横方向へ絞
り込まれてマーク位置ではそれぞれマーク部分１２，１
３．１４ｆ：形成する。したがって第１のカマボコ形柱
状しンズ群に照射されたビームは子べてマーク形成に利
用されることになる。まだマークの形状とレーザビーム
のエネルギー分布を考慮して、レンズの面積を適当に振
り分けることによって、一様な濃さのマークを伺与でき
る。上記実施例においてマーク形成のためのレンズはカ
マボコ形柱状レンズに限らずマークする文字、記号に応
じて種々の形のレンズを使用して組み合わせてもよい。FIG. 2 is a diagram illustrating a laser marking device according to the present invention, in which a collimated laser beam no.
1° f21 to 24, and is further converged into a band shape at the marking position by a second semicylindrical lens group 25, 26 whose focusing direction is different from that of the first lens group. The beam irradiated onto the lens 21 is focused toward the focal point 15 of the lens 21. The other semicylindrical lenses 21.degree. 23.24 have focal lengths different from those of the lens 21, and their optical axes are parallel to each other. First, the beam 10 that has passed through the lens 21 is focused in the vertical direction and enters the lens 25, and is further focused in the horizontal direction by this lens 25 to form a mark portion 11 at the mark position. The vinos that have passed through the frozen lens 22, 23, and 24ffi are each narrowed down in the vertical direction, and further narrowed down in the horizontal direction by the lens 26, so that at the mark position, the mark portions 12 and 1 are respectively narrowed down.
3.14f: Form. Therefore, all of the beams irradiated onto the first group of semicylindrical columnar lenses are used to form marks. However, by taking into account the shape of the mark and the energy distribution of the laser beam and allocating the area of the lens appropriately, it is possible to create a mark with uniform density. In the above embodiments, the lens for forming the mark is not limited to the semicylindrical columnar lens, but lenses of various shapes may be used in combination depending on the characters and symbols to be marked.
またレンズ群は２つに限らず必要に応じて列群使用して
もよい。Further, the number of lens groups is not limited to two, and an array group may be used as necessary.
以上不発明によれば複数のレンズの組合せによってあら
ゆるマーキングが可能となシ、レーーリ゛ビームを有効
に使うことができる。According to the above invention, all kinds of markings can be made by combining a plurality of lenses, and the Rayleigh beam can be used effectively.
第１図はマスクを使用した従来のレーザマーキング装置
の動作を説明する図、第２図は不発明の一実施例の斜視
図である。
１・・・・・レーザビーム、２・・・・・マスク、３・
・・マーク、１０ ・・・レーザビーム、２１，２２，
２３．２４・・・・・第１の弓形柱状レンズ群、２５
、２６・・・・第２の弓形柱状レンズ群、１１〜１４
・・・マーク、１５・・・焦点。
Ｒ押入 ＃押＋ 内 原 晋Ｍ’ｔ、。
ｒ入FIG. 1 is a diagram illustrating the operation of a conventional laser marking device using a mask, and FIG. 2 is a perspective view of an embodiment of the invention. 1... Laser beam, 2... Mask, 3...
... Mark, 10 ... Laser beam, 21, 22,
23.24...First arcuate columnar lens group, 25
, 26... second arcuate columnar lens group, 11 to 14
...Mark, 15...Focus. R Oshiiri #Push+ Uchi Hara Susumu M't. R-in
Claims (1)
記号等の識別用マークを付与するレーザマーキング装置
において、文字、記号等を複数個の柱仏レンズの組合せ
によって形成すること全特徴とするレーザマーキング装
置。By irradiating the workpiece with laser light, letters and letters are printed on the workpiece surface.
A laser marking device for applying identification marks such as symbols, characterized in that characters, symbols, etc. are formed by a combination of a plurality of pillar lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57196225A JPS5985780A (en) | 1982-11-09 | 1982-11-09 | Laser marking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57196225A JPS5985780A (en) | 1982-11-09 | 1982-11-09 | Laser marking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5985780A true JPS5985780A (en) | 1984-05-17 |
Family
ID=16354277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57196225A Pending JPS5985780A (en) | 1982-11-09 | 1982-11-09 | Laser marking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5985780A (en) |
-
1982
- 1982-11-09 JP JP57196225A patent/JPS5985780A/en active Pending
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