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PRODUCT FOCUS MEDICAL OPTICS


PRODUCT FOCUS


A round-up of LENS ON MEDICINE


the latest optical components being used in medical instruments


conventional interference filters. Laser Components also provides a


narrower bandpass filter with a 3nm full width half maximum, offering a higher degree of selectivity and therefore more precise measurement results. The 3nm variant also features an optical density of OD5 with a peak transmission of more than 90 per cent. These filters are available in standard


diameters of 10mm, 12.7mm and 15mm, with custom sizes available upon request. www.lasercomponents.co.uk


The Berliner Glas Group has expanded its medical technology with autoclavable video couplers and video adaptors. These lenses are available in several fixed focal lengths and can be adapted to cameras of well- known manufacturers. They are produced as private label products in housing according to customer requirements. Berliner Glas is also able to manufacture hermetically-sealed housings thanks to its glass soldering technology. The optics in the housing are moved without contact by an innovative magnetic mechanism. The fixed focal-length lenses are autoclavable and can also be disinfected with aldehyde and non-aldehyde-based cleaning agents. Even after 500 autoclaving cycles in saturated water vapour, the lenses are fully functional. www.berlinerglas.com


Edmund Optics’ Techspec zinc selenide (ZnSe) windows are ideal for a wide variety of infrared applications including medical systems. This chemical-vapour deposited material has wide use in high power CO2


attenuating scattered energy before it reaches a detector, improving critical signal-to-noise ratio. The first standard type has a full width half maximum of 8nm, and was developed according to industry standards, exhibiting a suppression ratio of 1:100,000. The OD5 blocking depth of the new filters is superior to


SwissOptic, a Berliner Glas Group company, develops and manufactures customer-specific beam guidance systems for ophthalmology applications, such as laser-based eye surgeries for cataracts and LASIK. These optical systems are designed to optimally comply with the specifications of customer systems. The company offers beam expansion systems, zoomable lenses to focus from the cornea to the lens at various depths, visual systems for the observation duct, and optical components for OTC applications. www.swissoptic.com


laser systems because of its low absorption coefficient and high resistance to thermal shock. Zinc selenide is a relatively soft material that scratches easily and it is not recommended in harsh environments because its Knoop Hardness is only 120. When handling, uniform pressure must be applied and latex finger cots or gloves must be worn to prevent contamination. www.edmundoptics.com


Laser Components, alongside its partner Omega Optical, offers a series of interference filters optimised for biomedicine and clinical chemistry. Two basic versions are offered, each featuring an excellent signal-to-noise ratio at competitive prices. The filters are ideal for


36 Electro Optics March 2017


Nanoscribe is developing and producing high-precision 3D printing solutions for the production of micro-optics. Using Nanoscribe’s Photonic Professional GT 3D printers, complex nano-, micro- and meso- scale optical structures can be produced with sub-micrometre accuracies for medical instruments. A broad range of micro-optical shapes including standard refractive micro- optics, freeform optics, diffractive optical elements and even multiplet lens systems can now be printed in a one-step process. The precision of 3D printing allows not


only for the construction of common spherical lenses, but also the more ideal surfaces such as paraboloids or aspheres of higher order. This opens the door to aberration correction and micro-optical imaging systems with unprecedented quality. Researchers from the University of Stuttgart


have created a 3D printed triplet lens device using this additive manufacturing method. Nanoscribe’s solutions pave the way for the construction of extremely small endoscopes which are suited for the smallest body. www.nanoscribe.com


@electrooptics | www.electrooptics.com


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