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Optics

Demanding vision tasks such as precision measurement require zero distortion telecentric lenses. Opto Engineering® provides the best components from the machine vision world covering almost every possible need in precision telecentric optics: wide range of high to low magnifications, classic and extremely compact designs like the TC4K FLAT and TC CORE series, standard or long working distances, fixed or variable magnifications like the TCZR and TCDP PLUS series, lenses with Scheimpflug adjustment for 3D applications as well as telecentric lenses with integrated coaxial illumination.

360° view optics are uniquely designed lenses allowing you to reduce the number of components in a vision system. They offer a smart approach to solving machine vision tasks and have become a standard in many industries.

Correctly choosing optics is paramount to achieve high quality images, which are the basis of good image  processing and essential to correctly qualify the object under inspection. Though the final result also depends on the camera resolution and pixel size, a lens is in many cases the stepping stone to build a machine vision system, therefore our motto at Opto Engineering® is “OPTICS FIRST”.

  1. Imaging lens selector
  2. TC options: how to order non-standard telecentric lenses
  3. Introduction to telecentric vision
  4. Bi-telecentric technology
  5. 360° optics tutorial
  6. Coherence artifacts on imaging systems
  7. Introduction to infrared vision
Read more...

Telecentric lenses

Outstanding optical performance. Unmatched customer service.

360° optics

The perfect solution for machine-vision inspection challenges.

Macro optics

A complete array of products dedicated to close-range inspection.

Fixed focal

A wide range of solutions for every machine vision challenge.

Infrared optics

Beyond the visible range, for advanced optical applications.

Adaptive optics

The new way to focus, faster and easier than ever.

Not available

Basics

The basic purpose of a lens of any kind is to collect the light scattered by an object and recreate an image of the object on a light-sensitive ‘sensor’ (usually CCD or CMOS based). A certain number of parameters must be considered when choosing optics, depending on the area that must be imaged (field of view), the thickness of the object or features of interest (depth of field), the lens to object distance (working distance), the intensity of light, the optics type (telecentric/entocentric/pericentric), etc.

The following list includes the fundamental parameters that must be evaluated in optics

  1. Field of View (FoV): total area that can be viewed by the lens and imaged onto the camera sensor.
  2. Working distance (WD): object to lens distance where the image is at its sharpest focus.
  3. Depth of Field (DoF): maximum range where the object appears to be in acceptable focus. Sensor size: size of the camera sensor’s active area. This can be easily calculated by multiplying the pixel size by the sensor resolution (number of active pixels in the x and y direction).
  4. Magnification: ratio between sensor size and FoV.
  5. Resolution: minimum distance between two points that can still be distinguished as separate points. Resolution is a complex parameter, which depends primarily on the lens and camera resolution.
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