Home
 Products
 Suppliers
 Latest products
 Membership
 News
 Presentation
 Feedback
 Contact

 

NETLINKS
 
 
 
 
 
 

Category : Optics (components, coatings, instruments and systems) > Optical lenses, mirrors, (auto)collimators

Achrovid Nelsonian Objectives for video inspection microscopes

PRINT
BACK



Although video inspection microscopes play an essential role in high magnification process monitoring and machine vision, they have invariably been equipped with objectives primarily designed for visual purposes. In video terms, such objectives have stated numerical aperture (N.A.) ratings that are more theoretical than practical. This is because "visual-dedicated" objectives "presume" that an end-user will constantly monitor each image to obtain a proper balance between contrast and resolution—through either an adjustment of condensing optics, a variation in aperture—or both. Unfortunately, it is impractical to monitor each image and adjust this balance on an individual basis in automated video applications or where many objects are being constantly examined. Moreover, the cross-over point between resolution and contrast occurs at less than full aperture (full N.A.).

Article from INFINITY PHOTO-OPTICAL


List of all articles from this supplier

- MID for Biological Fluorescence Microscopy
- PL-Series Objectives designed for very long distance observations
- FM-Series lenses for video imaging
- InfiniVar CFM-2 Microscopes

List of all articles from this supplier


List of articles in this sub-category

- Non-polarizing Beamsplitter Cubes
- Aspheric Lenses from Optarius
- Broadband Dielectric Mirror
- TEC Telecentric System for macro imaging
- VS-L1035 Series Low Distortion Lens for Line Scan Sensor
- VS-TC series Telecentric Lenses

List of all articles in this sub-category Optical lenses, mirrors, (auto)collimators

List of all articles in this sub-categoryList of all articles in this sub-categoryList of all articles in this sub-category