A laser etching apparatus includes a chamber, a laser port, a laser emitter, a particle grabber, and a revolving window module. The chamber is configured to receive a substrate. The laser port is disposed below the chamber in a downward direction. The laser emitter is configured to emit a laser to the substrate disposed within the chamber through the laser port. The particle grabber is disposed within the chamber and includes a body disposed over the laser port. An opening is formed through the body. The opening is configured to pass the laser therethrough. The revolving window module includes a revolving window and a driving part configured to drive the revolving window. The revolving window is disposed between the particle grabber and the laser port.

A laser etching apparatus includes a chamber, a laser port, a laser emitter, a particle grabber, and a revolving window module. The chamber is configured to receive a substrate. The laser port is disposed below the chamber in a downward direction. The laser emitter is configured to emit a laser to the substrate disposed within the chamber through the laser port. The particle grabber is disposed within the chamber and includes a body disposed over the laser port. An opening is formed through the body. The opening is configured to pass the laser therethrough. The revolving window module includes a revolving window and a driving part configured to drive the revolving window. The revolving window is disposed between the particle grabber and the laser port.

A connector and labeling forming method thereof is provided. The method includes: a laser engraving device generating a laser beam, and controlling the laser beam to engrave a label on a labeling part of a metal shell of a connector. The connector includes a metal shell and a label. The metal shell has a labeling part and the label is engraved on the labeling part by a laser beam. As such, the invention can engrave the label on the labeling part of the metal shell of the connector by using the laser engraving technology to replace the traditional self-adhesive label, thereby being able to solve all the problems caused by the self-adhesive label.

A connector and labeling forming method thereof is provided. The method includes: a laser engraving device generating a laser beam, and controlling the laser beam to engrave a label on a labeling part of a metal shell of a connector. The connector includes a metal shell and a label. The metal shell has a labeling part and the label is engraved on the labeling part by a laser beam. As such, the invention can engrave the label on the labeling part of the metal shell of the connector by using the laser engraving technology to replace the traditional self-adhesive label, thereby being able to solve all the problems caused by the self-adhesive label.

A method of producing an amorphous alloy ribbon. The method includes radiating a laser to an amorphous alloy ribbon, while the amorphous alloy ribbon travels or is travelling, to thereby form laser irradiation marks on the amorphous alloy ribbon. Further, when the amorphous alloy ribbon has a traveling speed of S1 m/sec and the laser has a scanning speed of S2 m/sec, the S1 is 0.1 m/sec or more and 30 m/sec or less, the S2 is 1 m/sec or more and 800 m/sec or less, and S2/S1 is 3.0 or more.

A method of producing an amorphous alloy ribbon. The method includes radiating a laser to an amorphous alloy ribbon, while the amorphous alloy ribbon travels or is travelling, to thereby form laser irradiation marks on the amorphous alloy ribbon. Further, when the amorphous alloy ribbon has a traveling speed of S1 m/sec and the laser has a scanning speed of S2 m/sec, the S1 is 0.1 m/sec or more and 30 m/sec or less, the S2 is 1 m/sec or more and 800 m/sec or less, and S2/S1 is 3.0 or more.

An improved glazing unit including a glass panel which is low in reflectance for RF radiation, a coating system which is high in reflectance for RF radiation disposed on the glass panel and creating onto the glazing unit a dual band bandpass filter. The glazing unit further includes at least one frequencies selective decoated portion of the coating system extending along a plane, P; having a width, DW, and a length, DL. The at least one frequencies selective decoated portion features a first decoated element with a plurality of unit cells, and a plurality of second decoated elements where a second decoated element is placed in a unit cell of the first decoated element, but no second decoated element is in contact with the first decoated element and at least one unit cell of the first decoated element has no second decoated element.

A laser processing device for generating a plurality of grooves in a surface comprises an optical diffraction arrangement adapted to receive a laser radiation and to generate an output radiation hereupon, the output radiation having a plurality of intensity maxima. An actuator arrangement is provided for generating a relative movement between the output radiation and the surface, wherein each intensity maximum generates a groove of the plurality of grooves.

A laser processing device includes a support unit, a laser light source, a reflecting spatial light modulator, a light collection optical system, an imaging optical system, a mirror, a first sensor configured to acquire displacement data on a laser light entry surface, and a second sensor configured to acquire displacement data on the laser light entry surface. An optical path of the laser light extending from the mirror to the light collection optical system is set along a first direction. An optical path of the laser light extending from the reflecting spatial light modulator to the mirror through the imaging optical system is set along a second direction. The first sensor is disposed on one side of the light collection optical system in a third direction.

A laser processing device includes a support unit, a laser light source, a reflecting spatial light modulator, a light collection optical system, an imaging optical system, a mirror, a first sensor configured to acquire displacement data on a laser light entry surface, and a second sensor configured to acquire displacement data on the laser light entry surface. An optical path of the laser light extending from the mirror to the light collection optical system is set along a first direction. An optical path of the laser light extending from the reflecting spatial light modulator to the mirror through the imaging optical system is set along a second direction. The first sensor is disposed on one side of the light collection optical system in a third direction.