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​Machine Vision Lenses

​​Moritex high-resolution lenses maximize imaging performance for machine vision systems used in factory automation and manufacturing settings.

  • ​Improve image formation for precise measurements and analysis of subtle features
  • ​Produce high-contrast inspection images even in low-light settings
  • ​Correct optical distortions such as blurring, shadowing, and color fringing for more accurate imaging​ 
​​Download Standard Lens Catalog​

Our Products

Moritex CCTV lens
​​Standard Machine Vision Lenses​

Optimize your machine vision with flexible range of lenses

Standard and large format lenses for a range of machine vision applications.
Moritex bi-telecentric lens
Telecentric Machine Vision Lenses

​​Precision optics for advanced machine vision​

​​Specialized lenses for manufacturing tasks that demand the highest precision.
Lenses

How to choose the right lens for your vision system

​​The Cognex Lens Advisor makes it easy to select the right lens for your machine vision and barcode reading applications.
​Using this tool is simple – select or input your vision system details to receive a list of compatible lenses, complete with downloadable results.​

​Try the Cognex Lens Advisor​

Why are lenses important in machine vision?

​​Lenses are critical components in machine vision systems, offering several key benefits:

  • ​Enhanced resolution for capturing fine details in high definition.
  • ​Reduced distortion for accurate, reliable image creation.
  • ​Adaptability to accommodate different sensor sizes and fields of view.
  • ​Reliable focus control for consistent image clarity in production environments.
  • ​Support for specialized applications, such as inspecting small components or capturing wide scenes efficiently.​ 
Moritex FA Macro lens

​​What are standard machine vision lenses?​

​​Standard lenses deliver high-resolution imaging and reliable performance for factory automation. Available in a variety of focal lengths, these lenses are designed to align with working distance, field of view, and sensor size, delivering precision inspection and versatility across a wide range of machine vision applications.

​Common use cases:

  • ​Inspection and quality control: Detecting defects, scratches, or irregularities on products.
  • ​Code reading and verification: Scanning barcodes, QR codes, and alphanumeric codes for tracking and identification.
  • ​Object recognition and sorting: Identifying and categorizing objects based on size, shape, or color.
  • ​Assembly line monitoring: Ensuring proper alignment and placement of parts during assembly.
  • ​Surface inspection: Analyzing textures, patterns, or surface defects on materials like metals, plastics, or textiles.​ 
Standard Lenses for Machine Vision​

​​What are telecentric machine vision lenses?​

​​Telecentric lenses are specialized optical lenses designed to eliminate perspective errors, regardless of an object’s distance from the lens. They ensure the object size remains constant even when the working distance changes, eliminating the magnification variations that can occur with conventional lenses

​Common use cases:

  • ​Precision measurement and metrology: Measuring dimensions of objects with high accuracy and ensuring consistent quality control.
  • ​Defect detection: Identifying flaws, scratches, or irregularities on surfaces to maintain manufacturing standards.
  • ​Alignment and positioning: Guiding robotic systems for precise pick-and-place operations and verifying component placement.
  • ​High-precision inspection: Inspecting small components or complex details.
  • ​Flatness and shape analysis: Evaluating the flatness or shape of objects for dimensional consistency.​ 
​Telecentric Lenses for Machine Vision​
Moritex telecentric lens

​​How do machine vision lenses work?​

​​Machine vision lenses capture and focus light onto a camera sensor, enabling the system to analyze and interpret visual data. Here’s how they work:

  1. Light collection
    The lens gathers light from the scene or object being inspected. The amount of light collected depends on the lens’ aperture, which controls the light intensity reaching the sensor.
  2. Focusing
    The lens focuses the light onto the camera’s image sensor, creating a sharp and clear image. The focus is adjusted based on the working distance and the required field of view.
  3. Magnification
    Lenses provide magnification to ensure the object fits within the camera’s field of view while maintaining the required level of detail. The magnification is determined by the lens’ focal length and the sensor size.
  4. Image formation
    The lens projects the light onto the camera sensor, forming an image. The quality of the image depends on factors like resolution, distortion, and depth of field:

• ​Resolution: Determines the level of detail the lens can capture.

​• Distortion: High-quality lenses minimize distortion for accurate imaging.

• ​Depth of field: Refers to the range of distances where the object remains in focus.​

​​What is the difference between C-mount and F-mount lenses?​

​​The main differences between C-mount and F-mount lenses are:

​Thread size and flange distance

  • ​C-mount lenses feature a 1-inch diameter thread and a 17.5mm flange focal distance, well-suited for compact cameras.
  • ​F-mount lenses feature a thread diameter larger than c-mount lenses and a 46.5mm flange focal distance, well-suited for large-format sensors.

​Applications

  • ​C-mount lenses are commonly used in general machine vision tasks.
  • ​F-mount lenses are ideal for line scan systems or applications requiring broad image capture.​ 

​​Essential terms to know about machine vision lenses​