Product Update
High-End Industrial & Scientific Cameras
By
Mike Obstgarten
January
2001
Diagnostic
instruments SPOT RT.
Not
every new year starts out with a festival of product introduction
in the demanding industrial/scientific marketplace, but it
is clear that camera manufacturers have been super-productive
of late, releasing all sorts of new models for imaging pros
in various disciplines, even within the last month since we
printed our annual Buyers' Guide issue. Maybe it has something
to do with the real start of the millennium! (Maybe not.)
But the benefits will be real for imaging system implementers
and designers. Nearly all of these new cams have decreased
in size and/or increased in resolution capability over the
predecessors in their respective lines.
The Cohu (San Diego, CA) 7500
series monochrome progressive-scan 1300 x 1030 camera measures
just 52.3 x 52.3 x 73.5 mm, enabling it to achieve optimum
use in tight-fit medical, inspection, gauging, and test/measurement
apps. Its microlens technology gives high dynamic range and
high sensitivity at its normal speed of 12 fps; double-speed
(24 fps) at half-res is also available, and changing between
modes can be accomplished on the fly. Its 44-pin D connector
puts all camera functions on one cable, and an additional
serial control connector adds flexibility, so control signals
can be configured for either LVDS (RS-644) or TTL (single-ended)
levels. Indicate 214.
Cohu
7500 Series
The
PixelFly digital CCD camera system from Cooke Corp. (Auburn
Hills, MI) is available in VGA, SVGA and high-res (1360 x
1024) models for apps ranging from ballistics and particle
imaging to machine vision. The system features an ultra-compact
camera head (1.5" x 1.5" x 2.5") that connects
to an included standard or compact PCI board via high-speed
LVDS. Frame rates range from 9.5 fps (high-res, full-frame)
to 140 fps (VGA, 4 vertical binning), and exposure time is
configurable from 1/100,000 to 10 seconds. Color and black-and-white
versions are both available. (In the UK, the PixelFly is handled
by Pulse Photonics Ltd.) Indicate 215.
Designed specifically for microscopy,
the Spot RT Monochrome from Diagnostic Instruments (Sterling
Heights, MI) is built around the Kodak KAI-2000 research-grade
CCD sensor, which produces 12-bit, 1600 x 1200 images. Its
19 fps live image window enables easier focusing and scanning,
and cooling to -37¡C ensures low noise for fluorescence and
darkfield work. Spot-dedicated software is user-friendly-ROIs
just have to be isolated in the live window before hitting
the Snap button. The Mac- and PC-compatible software also
provides sequential imaging, advanced editing, calibration,
measurement, databasing, and report generation. Indicate 216.
JAI (Copenhagen, Denmark) recently
intro'd the CV-M4 megapixel (1300 x 1030) camera, featuring
24 progressive-scan fps readout and the same digital LVDS
EIA-644 output that's widely used by digital image-acquisition
boards. Proprietary sample-and-hold technology and correlated
double-sampling (CDS) techniques allow for both high speed
and high image fidelity. Industrial users will also like its
asynchronous trigger, partial-scan (1/2, 1/4, or 1/8), and
vertical binning features, as well as its full RS-232C control
of gain, shutter speed, trigger mode, and more. Camera Link
output is an option with this unit, or users could stick with
its parallel output. Indicate 217.