The Machine Vision camera “Sleepability factor”!?

machine vision camera

sleepy cameraThe sleepability factor, or how saving $50 on a machine vision camera could cost you thousands!

As an independent machine vision camera distributor, we are asked about the manufacturers we represent.  Out of all them, we have chosen to only carry products from a few machine vision camera and lens companies of which we have not really changed this over the 20 years we have been in business.  Why is this?

These days, there are probably over 30 different camera manufacturers making products for the machine vision marketplace, many using the identical image sensors.  Considering anyone can just put up a web page and start selling, how can a user know which product to purchase?  Are there really any differences?  Should I just purchase on price?  Should I buy from a distributor or from the manufacturer direct?  All great questions, that we will attempt to answer.

The very simple and quick answer is that if you just need to get a image in good light, pretty much any camera from any vendor will do that job.  No matter if it is from a large company or a 2 person startup, when you take the product out of the box, you should see a “good” image.

But if you said, “I want this camera to run 24/7 for the next 5 years, I want to be able to develop complex software to integrate into my machine, I need the image sensor plane to be within a certain tolerance for each machine,” this changes the situation.

IDS imaging camera
IDS Imaging USB3 cameras

The reason we have chosen the camera manufacturers we sell products from is because each of them has a proven track record of reliability.  Each of the companies we represent ships 6 figures of cameras per year.  IDS Imaging for instance ships close to 200,000 cameras per year and has a return rate of under 0.3%.

 

Allied vision camera
Allied Vision GigE Cameras

Allied Vision was the first company to incorporate the Precision Timing Protocol (PTP) which allows for precise multi camera sync, enabling our clients to not only make sure the application will work, but it doesn’t take years to develop it.

 

 

 

Dalsa line scan cameras
Teledyne Dalsa Line Scan cameras

 

Teledyne Dalsa, besides being a leader in line scan technology,  has a SDK that has been built upon for over 30 years.

 

 

JAI’s prism technology is so good that its competitors actually have JAI

JAI cameras
JAI 3-CMOS Prism camera

manufacture for them.  This isn’t to say there aren’t other camera companies with such characteristics.  There are, and many of the other camera companies have excellent products as well.  It is just that we have chosen these companies, and we have stood with them for 15+ years for good reasons… sleepabilty!

What does this mean to you as a client?  Yes, you can purchase a camera from any vendor, which on a $500 camera, you might even be saving $50 a camera.  If you purchase 100 cameras a year, this adds up to a reasonable savings of $5,000.  But what happens if your machine, which you sell globally, has a camera that fails.  What is the cost of the line going down at your client?  How do you look in your client’s eyes?  What is the cost for you to fix it?

If you had your choice of buying a camera with the same characteristics at roughly the same price, but one company makes 20,000 a year, and the other makes 200,000 a year, which would you choose?  The same is true if you can choose between a company that has offices all over the world, or just in one country.  Or one that has many application engineers to answer your questions, or just one.

We just want to point out that if you are making a purchase on price alone, depending upon your circumstances, it might not really be a savings at all.  In fact, it might actually not only be costing you money, but it might even be costing you your sleep!

Contact us

1st Vision’s sales engineers have over 100 years of combined experience to assist in your camera selection.  With a large portfolio of lenses, cables, NIC card and industrial computers, we can provide a full vision solution!

 

Dalsa line scan polarization camera makes invisible visible!

Teledyne Dalsa has released the first line scan polarization camera for machine vision.  The Piranha4 polarization camera provides the capability of detecting , stress, surface roughness,  birefringence and physical properties undetectable with conventional imaging making the invisible visible!

This unique technique uses four polarization channels with a color line scan camera solving various applications, but not limited to the following:

Glass Inspection:  Glass bottles, architectural glass sheets, and automobile windshields, etc. – Enables inspection of internal stress and defects non-visible with conventional imaging

Dalsa Polorized ruler

Film inspection: transparent films, packaging films, and patterned films etc. – Detect scratches, digs, and other surface defects that are difficult to detect with conventional imaging   Dalsa Polarized scratch

Precision optics: optical lens, prisms, fibers, and micro-optical – Detect residual internal stress and thermal annealing effects
polarized - stress in sun glasses

Flat Panel Display and PCB inspection: Thin film transistors, organic LEDs, printed circuit boards etc.- inspect ITO, dust particles, films thickness, and surface defects with enhanced contrast

Carbon fibers: effectively inspect the quality of composite materials that are widely used in aircraft, aerospace, wind energy, and automotive industry

Food and material sorting: Increase sorting accuracy and detecting capability of foreign materials such as plastics, glasses, metals etc. with polarization imaging

Bio-medicine: digital pathology, in vitro cells culture, optical coherence tomography etc.- Provides additional information in birefringence tissues
Remote sensing: helps identifying special objects from natural background
And many more…

Contact 1st vision

Line scan polarization camera Features

  • CMOS Quadlinear sensor  – 2048 pixels
  • High speed line rate of 70k hz with 14.08 um pixels
  • Camera Link interface
  • Three polarization states plus and unfiltered channel (Output format with 0 deg (S component), 90 deg (P component), 135 deg and unfiltered polarization states.)

Full specifications on the Teledyne Dalsa polarization camera ( P4-CP-02K07Q-00-R ) can be found HERE

line scan camera Polarization angles

White Paper  – Learn about this unique polarization technique with line scan cameras!   This white paper covers the following topics

  • How polarization techniques work in transmission and reflectance configuration
  • Comparison of three polarization filter technologies
  • How the sensor architecture is configured for polarization effects and visualization of defects.

line scan polarization camera white paper

1stVision has a strong working knowledge of polarization techniques, line scan cameras and lighting and can discuss your application in detail.

Contact us to talk to an expert!

Related Blog posts:
Teledyne Dalsa release of low cost GigE and camera link color line scan cameras

Video Tutorial:  How to setup HDR Imaging in Teledyne Dalsa Linea Line scan cameras

Teledyne Dalsa TurboDrive 2.0 breaks past GigE limits now with 6 levels of compression

Teledyne Dalsa Turbodrive

Teledyne Dalsa introduces TurboDrive 2.0 for their Genie Nanos

Dalsa Innovator awardWith the introduction of the Genie Nano came Turbodrive which allowed ‘faster GigE than GigE’ speeds. Turbodrive is a lossless hardware encoding scheme that potentially reduces the amount of data to be transmitted from the camera to the computer.  Dalsa’s Nanos, which are priced identical to the competition, offers the users the ability to go faster at no extra cost.  Note that the user can turn on or off the encoding.

However, the encoding scheme is data content dependent, and therefore if your data varies a lot within an image the compression is minimal.  If your data varies a lot from image to image, then using the encoding means that only certain frames will get a speedup resulting in an inconsistent data transfer rate.

Teledyne Dalsa Nano camera

Teledyne Dalsa has just recently introduced TurboDrive 2.0, a firmware upgrade for all Nanos. The major enhancement is that now TurboDrive offers multiple levels of encoding.  Level 0 is lossless, and each successive level has some potential lossy amount.

The table below indicates quality level,  image compression ratio (absolute worst case scenario)  and effective bandwidth gain

As you can see, at level 6, you have a worst case compression of 0.33, yet a speed up of 3.  Note, this is a worst case situation so you might get a speed up of 3x, yet be at 0.8.  The algorithm is data dependent!  (more about this in the tech primer)

Depending on the application, various compression levels provide minimal degradation.  The following images are shown for comparisons using the varying quality levels.

As you can see, even at level 4, there is very little degradation in the image.  It is easy to imagine that with this image, you can still do your image processing yet get a speed up of 68%!

Dalsa Nano Raw Image
Raw Image

Level 0 “Lossless” to Level 6 indicate the quality level in the images.

Dalsa Nano Turbodrive quality level comparisons
Quality level comparisons

Learn more by clicking the icon below for the comprehensive application note!

Teledyne Dalsa Turbodrive application note
To learn more about Teledyne Dalsa TurboDrive 2.0, please download the application note for full details.

 

1stVision has a ton of resources to learn about TurboDrive technology in general.  Please visit our dedicated Teledyne Dalsa Turbo Drive resource page HERE  

Contact 1st Vision

 

Related Blog posts:

How do you get the most pixels for your money? Check out the new Dalsa Nano C4900 camera!

Teledyne Dalsa Nano XL-M4090 cameras – 16MP cameras are now faster, cheaper and smaller!

Teledyne Dalsa Nano XL-M5100 cameras providing 25MP resolution for < $6K!