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US 5,208,439 AGranted
Laser beam relay unit
AssigneeFanuc Corporation
InventorTakeji Arai
Life of this patent
Estimating the term…
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AssigneeFanuc Corporation
InventorTakeji Arai
Estimating the term…
In a laser beam relay unit for shifting the direction of a laser beam, two reflecting mirrors (31, 37) are placed in parallel to each other and at a predetermined angle relative to incident light, and are fixed to rotatable light guide members (33, 36), respectively. Reflecting-mirror holders (10, 20) are provided in the backs thereof with inlets for cooling air, air retaining sections, and outlets for discharging air. The reflecting mirrors are air-cooled and can be satisfactorily cooled due to the provision of the air retaining sections.
A laser beam relay unit having two reflecting mirrors for shifting the direction of a laser beam, comprising:
A laser beam relay unit having two reflecting mirrors for shifting the direction of a laser beam, comprising:
Dependencies are inferred from the claim text.
No related US applications are recorded in the indexed filing history.
Drawings are temporarily unavailable. Open the PDF at USPTO
Working by laser beam, e.g. welding, cutting or boring: devices involving relative movement between laser beam and workpiece
Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam: aligning the laser beam
Optical devices or arrangements for the control of light using movable or deformable optical elements: for controlling the direction of light
Soldering or unsoldering
Term ended 4 May 2010 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
1. Field of the Invention
The present invention relates to a laser beam relay unit for use with a laser beam machine composed of a combination of an articulated robot and a laser oscillator and, more particularly, to a laser beam relay unit using air-cooled reflecting mirrors and having a simple construction.
2. Description of the Related Art
FIG. 1 is a schematic view of a first embodiment of a laser relay unit of the present invention;
FIG. 2(a) is a detailed schematic view of the reflecting-mirror holders of FIG. 1;
FIG. 2(b) is a sectional view taken along line A--A of FIG. 2(a); and
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 illustrates a first embodiment of the present invention, in which a reflecting mirror 31 is fixed to a reflecting-mirror holder 10 by a press member 32. Cooling air 42 is introduced to cool the reflecting mirror 31 as described in detail later. The reflecting-mirror holder 10 is fixed to a light guiding member 33 rotatably coupled to a light guiding member 36 by bearings 34 and 35.
Further, a reflecting-mirror holder 20, to which a reflecting mirror 37 is fixed by press members 38, is fixed to the light guiding member 36.