# Raster

## English translation: here: at a(n)...angle

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
 German term or phrase: Raster English translation: here: at a(n)...angle Entered by:

 17:29 Oct 23, 2005
German to English translations [PRO]
Tech/Engineering - Automation & Robotics
 German term or phrase: Raster Die Reflexfolie hat keine Vorzugsrichtung. Sie kann daher im 90°-Raster relativ zum Laserstrahl gedreht werden. The Reflexfolie is a reflective tape which is part of a distance-measuring system: A laser is emitted from the distance-measuring device then relected off of the reflector back to the device. The reflective tape contains a direction-independent microprism structure. My questions is: does "90°-Raster" mean that that the 90° grid structure in the reflector allows it to be rotated relative to the laser - or that the (generally square) foil may be rotated at 90° increments relative to the laser? (Judging from a sketch, there appears to be a 90° grid pattern in the reflector which cross hatches the grid (i.e. the grid pattern is rotated 45° relative to the reflector). Many thanks! Chris
 Christopher SchmidtUnited States Local time: 18:51
 her: at a(n)...angle Explanation:This all refers to the reflective tape; it can be used in two directions, the second one of which is 'at a 90 degree angle' from the first one
Selected response from:

Teresa Reinhardt
United States
Local time: 15:51
 Thanks Teresa!4 KudoZ points were awarded for this answer

4her: at a(n)...angle
 Teresa Reinhardt
3comment (for info only)
 Ken Cox
1*
 Harry Borsje

Discussion entries: 1

1 hr   confidence:
her: at a(n)...angle

Explanation:
This all refers to the reflective tape; it can be used in two directions, the second one of which is 'at a 90 degree angle' from the first one

 Teresa ReinhardtUnited StatesLocal time: 15:51Works in fieldNative speaker of: German, EnglishPRO pts in category: 13
 Thanks Teresa!

1 hr   confidence:
*

Explanation:
'independent' of the choice of words of the German source text: reflection from a retroreflecting surface will always be (predominantly) back to the light source and rotation around the surface normal should have no effect whatsoever, so I suppose this is what, in the end, is meant here

 Harry BorsjeNetherlandsLocal time: 00:51Works in fieldNative speaker of: DutchPRO pts in category: 22

4 hrs   confidence:
comment (for info only)

Explanation:
I agree with Teresa's understanding of the intended meaning, and equally with Harry's comment. The purpose of the microprism structure is to refect the incident laser light directly back to the source even if the reflector is not exactly perpendicular to the beam (and obtaining exact perpendicularity is nearly impossible in practice). The same principle is used in reflectors and reflective lamp lenses for vehicles.
As Harry noted, the microprism structure should reflect the incident light back to the source regardless of the angle of rotation of the microprism structure, unless the laser light is linearly polarized so the amount of reflection depends on the angle between the microprisms and the plane of polarization.

--------------------------------------------------
Note added at 5 hrs 2 mins (2005-10-23 22:32:04 GMT)
--------------------------------------------------

Futher thought: the fact that the target can be rotated in 90-degree increments may be due to some feature of the mechanical construction, independent of its reflective properties. In that case, my take on the text is 'the reflector does not have a preferred orientation, so there's no reason why it cannot be oriented at 90-degree increments (among other possiblities not used in this case)'.

 Ken CoxLocal time: 00:51Native speaker of: EnglishPRO pts in category: 23

Login or register (free and only takes a few minutes) to participate in this question.

You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.

## KudoZ™ translation help

The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases.