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Building on field-proven technology:
the new Xcelera Frame Grabber
Xcelera-CL LX1 Base
Xcelera-CL LX1 continues DALSA's practice of offering high-quality
imaging components with varied functionality and price points to meet
the needs of every OEM and system integrator."
Inder Kohli, Product Line
Manager for DALSA
DALSA's latest addition to its camera link products is the Xcelera-CL
image acquisition board. This easy-to-set up-and-use frame grabber delivers
highly reliable image acquisitions and offers extensive software support
through DALSA's Sapera Essentials software package.
The entry-level Xcelera-CL LX1 Base, built
with DALSA's customary precision engineering, brings traditional image
acquisition and processing technology to new levels of performance and
|How can implementing the Xcelera-CL
LX1 Base enhance performance and increase flexibility in my applications?
Designed for the PCI Express x1 interface (which allows
point-to-point host interface), the Xcelera-CL LX1 can acquire
images from a variety of multi-tap area and line scan, colour
and monochrome cameras and is fully compliant with Camera Link
(V. 1.20) specifications. (Camera Link operations are supported
up to 85 MHz.)
| Built with DALSA's Trigger-to-Image Reliability technology
framework, the Xcelera-CL LX1 combines acquisition and external control
signals on a single PCIe slot. Trigger-to -Image Reliability leverages
DALSA's hardware and software innovations to control, monitor and
correct the image acquisition process from the time that an external
trigger event occurs to the moment the data is sent to the host. This
functionality provides tracebility when errors do occur and permits
recovery from those errors.
What are the key features of the
Xcelera-CL LX1 Base Frame Grabber?
- Image acquisition from
Camera Link Base camera
- Supports Camera Link operations up to 85
- Supports 32.64 bit-Windows platforms
- Quarter-length PCI Express 1 Board
- Power Over camera link compliant
- Offers external acquisition control signals
on single PCIe slot
- ROHS compliant
- DALSA platform Development Advantage - Free
What are typical applications for the
Xcelera-CL LX1 Base Frame Grabber?
The Xcelera-CL LX1 Base frame grabber is designed for each of implementation
in a wide range of OEM imaging applications including electronics
and semiconductor inspection as well as general-purpose machine vision.
|What software support is available?
Sapera Essentials Software Package
All frame grabbers
in the Xcelera series are supported by DALSA's Sapera Essential
Sapera Essential is a cost-effective machine
vision software tool kit that bundles board level acquisition and
control with advanced image processing capability, featuring 1D/2D
bar-codes, OCR, pattern finding, colour analysis, blob analysis
and lens correction tools.
Sapera Essential is designed to work with
the Xcelera-CL LX1 and deliver the critical functionality needed
to design develop and deploy high-performance machine vision applications
while significantly lowering deployment costs.
||DALSA Platform Development Advantage - Free Run-time
The Sapera Essential standard processing tool run-time licence
is offered at no additional charge when combined with the DALSA
This software run-time licence includes access to over 400 image
processing functions, area-based (normalised correlation-based)
template maching tool, blob analysis and lens correction tool. Please
note: some conditions and limitations apply.
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New, low-cost lens controller from Stemmer
CVX lens controller
announces the CVX Lens Control unit developed to control aperture,
focus and zoom on motorised lenses
via the RS232 interface of a PC system.
The CVX Lens Control-P is especially designed for lenses that provide
feedback on the position using a wiper contact on a potentiometer. This
makes it possible to save certain settings for the various lens components
and to call them up at a later time.
In order to achieve the greatest possible level of precision,
the CVX Lens Control-P features an error correction facility matched to
each individual lens. To use this facility, each lens must be calibrated
once via a simple, uncomplicated operation requiring only a few clicks
of the mouse.
The bundled software enables quick and easy control of
the CVX Lens Control resp.
Both controls use a simple command set making it easy to implement
The housing can be easily mounted on a DIN-Rail.
||For all lenses with motor control
||Lens control via RS232 interface
||Output voltage 5 and 8 to 12 V DC
||Cable for RS232 and lens – 1.5m included
||3 different speeds – adjustable
||Compact aluminium housing - 70x85x60 mm
||Manual and demo software included
Adept Electronic Solutions are "The Machine Vision and Imaging
Specialists" and distributor of STEMMER products in Australia and
New Zealand. To find out more about any STEMMER machine vision product
please email us at: firstname.lastname@example.org
or call us at Perth (08) 92425411 / Sydney (02) 99792599 / Melbourne
(03) 95555621 or use our online contact
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JAI's Unique Solution for High
Dynamic Range Imaging
AD-081CL high-dynamic camera
latest addition to the advanced tier of its C3 camera suite features a
unique, prism-based 2CCD camera, incorporating two monochrome CCD
sensors configured for extremely high dynamic range. The prism-based design
enables a single optical path to be split across both CCDs while maintaining
alignment to within one-quarter pixel. This means the AD-081CL high-dynamic
camera gives users the ability to capture two monochrome images of the
same scene simultaneously, each with radically different exposure settings
(shutter and/or gain) to produce a high total dynamic range. The two standard
monochrome progressive scan sensors are mounted on a custom-designed optical
prism which enables the camera to capture two channels of of pixel correlated
video at 30 fps.
What are the benefits of this prism-based
Aligning the two prism-mounted sensors to within one-quarter pixel accuracy
enables the AD-081CL's high-dynamic range capability to be applied to
inspection tasks regardless of whether or not the objects are in motion:
a feat that cannot be replicated using two separate cameras or with multiple
exposures with a single CCD. An added benefit of a one-camera
solution is that it is priced considerably lower than
a two-camera system, particularly when optics, illumination, image acquisition
and other related items are considered.
How does the camera operate?
The shutter speed and/or gain for each channel of the AD-081CL can be
calibrated independently, one channel capturing the details in the brighter
areas while the second capturing the identical image, but with an emphasis
on the details in the darker areas. These two images can then be analysed
separately or post-processed and recombined to produce orders of magnitude
higher dynamic range of standard CCD cameras. This method avoids the noise,
shutter, and compression issues typically associated with CMOS-based logarithmic
An illustration of this technique can be seen in the following images
captured by Jai's AD-081 camera.
The incident light coming from the light globe makes
it impossible to examine both the bright and the dark areas of this scene
in a single exposure. Instead, two exposures are used as shown in Figure
1. The left half of the image shows what the image looks like when
captured with a slow shutter speed resulting in the capturing of detail
in the surrounding areas while letting the brightest parts of the scene
saturate. The right half of the image shows the result of a much faster
shutter speed, enabling details to be seen in the brightest portions of
the image while rendering much of the surrounding area as nearly black.
When "fused", as shown in Figure 2, the composite image
is able to span the full dynamic range of the scene.
Figure 1 - Bracketing the exposure
Figure 2 - Fused HDR image
The Jai AD-081CL is equipped with two configurable Camera Link outputs
providing users with a choice of a single-cable operation or using separate
cables for each channel. Other features include particle scanning and
vertical binning capabilities as well as analogue video output to support
What are some typical applications for the
Typical HDR application for the AD-081CL include inspection tasks where
incident light or bright reflections are present, such as LED inspection,
welding, in-situ solar panel inspection and various types of lighting
or glass inspections.
The camera is also ideal for a wide range of automotive applications,
microscopy or high-end surveillance uses.
||Adept Electronic Solutions are The Machine Vision and
Imaging Specialists and distributor for JAI products in Australia
and New Zealand. To find out more about this article or any JAI product,
please email us at: email@example.com,
call us at Perth (08) 92425411 / Sydney (02) 99792599 / Melbourne
(03) 95555621 or use our online contact
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Five new high-resolution lenses
suit your high res imaging needs
Optically and mechanically designed for the specialised needs of industrial
image processing, Schenieder-Kreusnach lenses are an invaluable component
for high-end machine vision systems.
New to the Schneider-Kreusnach
lenses product line are:
The result of an image processing function is limited by the quality of
the image on the camera sensor itself. Besides the illumination, the lens
is the most crucial component of a machine vision system. The lens
must not only meet the optical performance required by the image sensor,
but should also offer a solid mechanical design, able to withstand
the rquired environmental conditions over years.
Schenieder-Kreusnach lenses' robust mechanical design with lockable focus
and iris setting mechanism guarantees long-term stability in typical production
- The APO- Xenoplan 1.4/23 is optimized for high-resolution applications
using 5 megapixel CCD and CMOS cameras with sensor sizes up to
- Small pixel sizes <5µm pose no problems
for this lens with contrast and sharpness not being impared in
- Having an initial aperture f-number F1.4 and excellent transmission
(due to the broadband coating of the lens), this lens is exceptionally
bright making it ideal for the entire spectral range from
400 nm to 1000 nm.
- Applications include high-precision geometric metrology
and traffic supervision.
| APO-Xenoplan 2.0/24
- The new telecentric lens APO-Xenoplan 2.0/24 is ideal for high-resolution
3D metrology and traffic technology using 1.3" (24mm diagonal)
- This high-resolution lens is optimized for the widely-used 4-magapixel
CCDs with micro-lenses on the sensor surface where the special
optical design prevents unwanted shading. This
capability provides extremely homogeneous brightness
distribution combined with high imaging performance.
- The comparatively short focal length allows a large
acquisition area at short working distances using 1.3"
- The image circle of 24 mm is large for a C-Mount
- As with all Schneider-Kreusnach lenses in the C-Mount compact
range, the Cinegon 2.1/6 design is sufficiently robust
to make it largely insensitive to harsh ambient conditions and
therefore, ideal for use in an inustrial environment.
- The6 mm focal length range fills the current gap
between 4.8 mm and 8.0 mm lenses thereby improving the choice
for short focal length range applications.
- Ideal for use in 3D metrology and in crash
Macro Varon 4.5/85
The Macro Varon lens has been designed to improve
the resolution and flexibility of advanced inspection systems using
high-resolution up to 12k line scan cameras.
- The design has been optimized to deliver an optical magnification
range of between 0.5X to 2.0X. It features Innovative CAS (Continuous
Aberration Suppression) lens technology which produces uniform
high-performane over the entire magnification range.
- A gear set moves floating elements inside the lens to correct
aberrations and ensures the appropriate adjustment for the desired
- A special design ensures constant focal length at any magnification.
- The gear arrangement enables the magnicifation adjustment to
be externally motorised in an automated environment.
12 K Lenses
These lenses are designed for industrial machine vision applications
and satisfy even the most stringent requirements
of 12K line scan applications. These lenses cover a magnification
ratio range from 0.33X to 2.0X by using the lens either
in standard or retro position.
*** Designed for high-resolution line scan applications
up to 12k *** Large image circle up to 90 mm for long linear array
size *** High optical resolution for small pixel sizes down to 5
µm *** Low distortion for excellent imaging accuracy *** Optimized
for magnification ratios from 0.33X to 2.0X
1/3" and 2/3"
||Optically and mechanically designed for
the specialized needs of industrial image processing, these lenses
are an invaluable component for high-end machine vision systems.
In accordance with the spectral sensitivity range of common CCD and
CMOS sensors, these 2/3" lenses are corrected and broadband coated
for the spectral range of 400-1000nm (VIS+NIR). The lenses for larger
sized sensors up to a diagonal of 22mm are also broadband coated and
may be used alternatively in the visible or near infrared range.
The robust mechanical design with lockable focus and iris setting
mechanism guarantees long-term stability even in typical production
environments. In summary, for an uncompromized optical and mechanical
performance, compact series lenses are always the first and best choice
for C-mount cameras
*** high resolution optics *** broadband coating (400-1000nm) ***
compact size *** robust metal body *** precise focusing via fine
thread *** focus lock with an Allen screw *** click-stop free iris
setting *** iris lock with a knurled thumb screw (Optional Allen
screw assembly kit)
Typical applications include:
*** crash tests *** robot vision *** web inspection *** 2D/3D measurements
***defect control and classification *** traffic control
CS-Mount adapter, extension tubes and filters are
available as accessories.
|About lenses and
line scan cameras
When choosing an appropriate camera, correct lens selection is vital
to achieve the desired system performance.
The size of the linear array sensor in the camera determines the minimum
required image circle of the lens and the size of the sensor's pixels
determines a particular optical imaging resolution. The desired object
resolution defines the necessary magnification ratio for the optical
system. These application-specific parameters allow you to choose
the most suitable lens to meet all requirements with respect to image
size and quality.
Specifically web inspeciton systems require high-resolution line scan
technology to achieve the high throughput and cost-efficient defect
detection demanded by quality assurance process. In the case of high-resolution
cameras, it is often the lens which is the limiting factor that determines
the overall system performance. The line scan image capture method
is useful and efficient for many web and other surface inspection
Back to Top
- August 2009
New Xcelera-CL LX1 Base Frame Grabber
New low cost lens controller - Stemmer CVX lens controller
High Dynamic range imaging camera - Jai AD-081CL Camera
Five New High Resolution lenses from Schenieder-Kreusnach