SCANPEDIA

Glossary

SCANpedia - welcome to the SCANLAB GmbH encyclopedia.

Here you'll find explanations and definitions of key technical terms from the fields of optics, scanner technology, laser technology and laser processing.

ALL  | A | C | D | E | F | G | I | L | M | N | O | P | R | S | T | W

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A

Mechanical Angle The mechanical angle is the rotation angle of the deflection ...

SCANLAB distinguishes between analog and digital position detectors. Analog ...

C

see Angle Terms

Scan systems transform lasers into highly flexible processing tools. The range ...

A correction file enables compensation of system-specific optical errors. Barrel ...

cps (characters per second) is the number of characters/symbols that can be ...

D

see Digital Encoder Technology

SCANLAB offers galvanometer scanners equipped with analog position detectors, ...

Dither is positioning noise of the scan mirrors in the time range of a few milliseconds. Independently ...

Drift is alteration of the image field over a long time period (from five minutes ...

see Tuning

E

see Digital Encoder Technology

F

F-Theta lenses – also called scan objectives or flat field objectives – ...

The spot diameter is defined as the diameter in the beam waist that contains ...

see Angle Terms

G

Gain error is incorrect scaling of the image field axes. What causes gain error? Each ...

A galvanometer scanner is a highly dynamic electro-optical component that uses ...

I

By Image field calibration a scan-head-specific correction file populated with ...

L

see Marking Speed

see Nonlinearity

M

The typical marking speed is the speed at which objectionable effects (e.g. ...

see Angle Terms

N

Nonlinearity describes image field distortions that can't be attributed to linear ...

O

Offset error is a shift of markings along one or both image field axes. What ...

see Angle Terms

P

see Angle transmitter

Position resolution is a measure of how precisely – i.e. with how much "digital ...

The typical positioning speed is the speed at which no large overshoots occur. When ...

see marking speed

R

The distance to the beam waist, until the beam diameter is increased by a factor ...

Repeatability describes the precision of multiple moves to the same point within ...

The Root Mean Square is identical to the standard deviation sigma if it fluctuates ...

S

see Digital Encoder Technology

see offset error

Skew error is tilting of the image field axes compared to the ideal axes. What ...

see Focal Diameter (Focal Spot)

The step response time is the time interval required to execute a jump over ...

T

Tracking error is the time interval between the set and actual positions when ...

Tuning is a particular method of dynamically optimizing the scan system. Here, ...

see Angle Terms

W

Each scan system is equipped with appropriately coated mirrors and objectives ...

Working distance A is the distance between the entrance aperture's central axis ...

see CPS

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