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2 Dundee Dr.
Andover, MA 01810
978.474.0044
978.623.7260 fax
West Coast
949-361-0350
Canada
519-963-4800
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For nearly a decade RVSI/NER has been the leading
innovator in the field of precision illumination systems
for machine vision. With extensive experience in
providing systems for the electronic, pharmaceutical,
automotive, and food handling industries, NER's role is
to solve the most challenging machine vision
applications involving transparent or highly specular
objects and surfaces. NER's state-of-the-art machine
vision laboratory continually develops new light sources
that define the future of technical illumination science.
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How do I know which light I need?
Light selection is dependent upon the
part size, surface features, part
geometry and system needs. Generally
speaking, you can use the following
chart to select a lighting technique.
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Applications/Desired Results |
Lighting Technique |
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Locate or measure outside
dimensions - View
openings (e.g., drilled holes) -
Diminish clear glass or
plastic housings - Measure
thickness of materials |
Backlight |
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Illuminate flat, diffused
surfaces - Control costs
- Good for diffused
surfaces |
Rings,
Domes,
or
Area Arrays |
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Fill-in center of image
with light - Evenly
illuminate flat shiny surfaces -
Enhance scribed, indented
or embossed features (when
on-axis lighting is required) -
Create contrast between
specular, diffuse or absorptive
surfaces |
DOAL or COAL
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Even out very bumpy
specular surfaces - Diminish
Clear Overcoats or Coverings -
Reduce Shadows - Differentiate
specular, diffuse or absorptive
features on a bumpy surface |
CDI |
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Even out slightly
bumpy specular surfaces -
Reduce shadows - Differentiate
specular, diffuse or absorptive
features on a slightky bumpy
surface - Achieve near-CDI
effect at reduced cost
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SCDI |
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Illuminate only the
contour of a part - Enhance
embossed or engraved surface
features - Differentiate
between specular & diffused
surfaces |
Dark Field |
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Simplify lighting
integration (one light, multiple
applications) - Combine
on-axis or SCDI with dark field
techniques - Control
costs |
MAXlite
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Products from 1stVision include firewire 1394 cameras from AVT
Allied Vision Tec USB 2.0 CMOS and CCD cameras from IDS Camera link cameras from
Imperx, GigE and Gigabit Ethernet cameras from Imperx, frame grabbers and
framegrabbers from Dalsa Dalsa-Coreco Coreco , CCTV lens from Fujinon , Tamron ,
Pentax , and Computar , line scan cameras from Dalsa, Genie cameras Gige from
Dalsa Coreco camera link cameras from JAI and Pulnix
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