parfocal


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par·fo·cal

(pahr-fō'kăl)
Describes a microscope with interchangeable objectives that do not require refocus.
[L. par, equal, + focal]
References in periodicals archive ?
Boeing also has obtained Scalar's remarkable 25x-200x Parfocal Zoom lens ($4200).
Achieving an industry first, the digital system can be used in conjunction with camera heads with parfocal optical zoom or to provide zoom functions for camera heads without built-in zoom capabilities.
unveils the Autoclavable Telecam [R] Parfocal Zoom Camera Head, the first and only camera head to offer both autoclave sterilization and zoom capabilities.
The Autoclavable Telecam Parfocal Zoom Camera Head addresses the limitations of alternative low-temperature techniques currently in use.
More than 60 times as light sensitive as standard cameras, Karl Storz PDD camera heads feature parfocal optical zooms that optimize the view to all endoscopes.
Specifically designed to withstand the rigors of steam sterilization, the Autoclavable Telecam Parfocal Zoom Camera Head provides faster turnaround times between cases and more cost-effective reprocessing.
And an integrated 2X parfocal optical zoom (14mm-28mm) provides an optimal image size with all telescopes, further reducing camera/telescope movement.
a leader in video imaging technology, unveiled the Autoclavable Telecam(R) Parfocal Zoom Camera Head, the first and only camera head to offer both autoclave sterilization and zoom capabilities.
the Autoclavable Telecam(R) Parfocal Zoom Camera Head offers convenient steam and flash sterilization for faster reprocessing plus the assurance of absolute sterility.
With parfocal spot sizes from 50 to 500 microns that maximize versatility, and a self-centering micromanipulator for greater control and precision, the new Laser Workstation is well suited for use either in the private practice or the clinic.
Using the Tricam's parfocal zoom and image enhancing features, surgeons obtain a closer, more detailed view of the operative site.
Another innovation of the camera system is the parfocal zoom, which features an extended focal length range of 25-50 mm to provide an enlarged, magnified view regardless of scope size.