Product category:
Form/co-ordinate, optical and vision instrumentation
News Release from: JE Debens | Subject: Isis
Edited by the Engineeringtalk Editorial
Team on 17 December 2002
Eyepiece accessory boosts microscope
performance
Isis is a novel microscope eyepiece accessory designed to improve the performance of conventional binocular microscopes.
Isis is a novel microscope eyepiece accessory designed to improve the performance of conventional binocular microscopes and is available through JE Debens It can be retrofitted to a broad range of quality microscope instruments and deploys Vision Engineering's award-winning expanded pupil (EP) technology; simply fitting in place of the traditional eyepieces on mono, routine, research and stereo microscopes
This article was originally published on Engineeringtalk on 14 Feb 2002 at 8.00am (UK)
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Isis EP technology is said to offer an exit ray bundle 12 times larger than a conventional eyepiece, permitting a greater freedom of head movement which reduces fatigue and additionally increases the distance between the user's eyes and the eyepiece by a factor of four.
Conventional eyepieces have a narrow exit ray bundle, so users are required to precisely align their eye with the centre of each eyepiece.
Typically, a slight movement of the eye results in loss of part of the field of vision as the pupil moves beyond the narrow conventional ray bundle.
Isis overcomes this, allowing users to simply move their eyes in order to view the full image area, as the pupil stays within the latitude of the 12x-wider exit field generated by Isis.
Isis promotes more efficient and easier use of quality microscope instruments in every application and for high magnification users in particular, the expanded pupil makes for more comfortable viewing of the outer parts of the optical field.
Isis also eliminates mouches volantes or 'floaters' in the eye.
These ubiquitous minor human imperfections result from tiny tissue fragments floating in the eyeball fluid and can significantly hinder microscope operations.
Again Isis offers a clearer and wider field of view, which prevents these elements cluttering the image.
Currently, Isis can be hosted on stereoscopic infinity-corrected microscope systems from Leica, Meiji, Motic, Nikon, Olympus, Wild and Zeiss; and on monoscopic routine and research microscopes from Leica, Nikon, Olympus, and Zeiss.
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