Primes GmbH Messtechnik fuer die Production mit Laserstrahlung
发明人:
KRAMER Reinhard,MAERTEN Otto,WOLF Stefan
申请号：
US201715563110
公开号：
US2018080819(A1)
申请日:
2017.03.17
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
An apparatus for the determination of geometric parameters of a laser beam, such as, for example, the beam diameter or the focus diameter. The apparatus includes a device for the emission of a laser beam into an active region, a detector arrangement, which can be positioned in the active region, a device for the provision of a relative movement between the laser beam and the detector arrangement, and a device for the registration and evaluation of a temporally varying signal of the detector arrangement. The detector arrangement includes at least one light guide, at least two flight-diffusing structures, and at least one light-sensitive sensor. The light guide has a light-emitting surface and a light-conducting region, with an elongated shape. The at least two light-diffusing structures are essentially extended along two different directions.
