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Marking apparatus

A marking and instrument technology, which is applied in the field of marking instruments, can solve the problems of limited lasers and oversized laser beam transmission, and achieve the effect of less beam distortion and high marking resolution.

Inactive Publication Date: 2014-04-30
ALLTEC ANGEWANDTE LASER LICHT TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of lasers used has hitherto been largely limited by the size of the individual lasers, which leads to oversized instruments and likewise prevents the delivery of the laser beam to the object to be marked

Method used

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Examples

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Embodiment Construction

[0067] figure 1 Shown is a schematic structural diagram of an embodiment of a marking instrument 100 according to the present invention. The marking instrument 100 includes a plurality of gas lasers 10, and each gas laser 10 emits a laser beam for making a mark on an object (not shown in the figure). For forming and directing the laser beam, the marking apparatus 100 further comprises optics 30 , 40 , 45 , 50 .

[0068] In the illustrated example, the plurality of gas lasers 10 consists of nine gas lasers 10a-10i. Typically, a larger number of gas lasers 10 is required, for example at least 4 or 6 lasers. Each gas laser 10 includes a resonator tube 12, and each resonator tube is fluidly connected to each other. This means that the resonator tubes 12 of a gas laser form a common resonator three-dimensional space. It is also possible for the resonator tubes 12 of different lasers 10 to be fluidly connected.

[0069] In the illustrated example, the gas laser is a CO2 laser, ...

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PUM

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Abstract

The invention relates to a marking apparatus (100) for marking an object with laser light, comprising a plurality of lasers (10) and a control unit for individually activating each of the lasers to emit a laser beam according to a sign to be marked. A set of deflection means (30) for rearranging the laser beams into a two-dimensional array of laser beams is provided, the set of deflection means (30) comprises at least one deflection means (33) per laser beam, in particular at least one mapping mirror (33) or one optical waveguide per laser beam.

Description

technical field [0001] The invention relates to a marking device for marking objects by means of a laser according to claim 1 . Background technique [0002] Typically, known marking devices use a single gas laser, such as a carbon dioxide (CO2) laser. Such lasers emit a light beam which is transmitted to the object to be marked. Objects on the conveyor belt move relative to the marking apparatus. Typically, a scanning device is provided for directing the beam onto the object based on the symbol to be marked. Since high throughput is usually required, the objects on the conveyor belt should move as fast as possible relative to the marking instrument. However, this speed cannot be increased arbitrarily since the scanning device needs sufficient time to write the mark on the object as it passes by. So, the speed of this marking device is limited by the speed of the scanning device. [0003] Throughput can be further increased by a universal marking device comprising a plu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00B23K26/04B23K26/70H01S3/07H01S3/03
CPCB23K26/0807H01S3/08059B23K26/365H01S3/2232B23K26/0608H01S3/2383H01S3/0835B23K26/0643B41J2/455H01S3/005B23K26/0604B23K26/0648H01S3/03B23K26/0084H01S3/076B23K26/082B23K26/361B23K26/355
Inventor 凯文·L·安布鲁斯特布拉德·D·吉尔马丁彼得·J·屈克达尔伯纳德·J·理查德丹尼尔·J·瑞安
Owner ALLTEC ANGEWANDTE LASER LICHT TECH GMBH