Founded in 1957, FISBA is a global leader in the design and manufacture of high precision micro-optics and opto-mechanical systems for medical endoscopy and robotic surgery.
Our expertise and capabilities support your product development path from R&D and prototype, to our DFM (Design for manufacturing) philosophy, engineering, supply chain optimization, metrology, leading to volume production. Our engineers have a profound understanding of the underlying optical technologies and manufacturing processes enabling the world’s leading brands to fulfill their market potential.
Imaging Optics and Coatings adapted for Endoscopy and Surgical devices
The endoscopy and robotic surgical markets rely on high precision optical components and complex opto-mechanical. We are experts in the design and manufacture of custom high precision micro optics both spherical and aspherical, plano and molded lenses down to 0.3 mm including complex flat optics, precision optical assemblies, prisms, polygons, windows, mirrors and wedges.
Our in-house coating expertise includes sophisticated AR coatings, metallic rear-surface mirrors and masked black chrome coatings to reduce light scatter.
Design and production of miniaturized glass aspheres for distortion control
Imaging with 4K resolution has become the standard in high end endoscopy. To take full advantage of 4K resolution means reducing distortion for the benefit of equidistant resolution and location identification. Precision molded glass aspheres provide a scalable solution for optimizing the optical design and minimizing distortion. FISBA designs and produces high-end precision molded aspheres offering repeatable and consistent performance with industrial scalability. A driver for the scalability and precision in glass molding is our in-house knowledge, capacity and expertise in manufacturing the precision tools for molding.
Miniaturization driving chip on tip architectures
The increase in minimally invasive clinical procedures and desire to improve patient outcomes drives the need for smaller endoscopic devices. Reducing the surgical access diameter for minimally invasive clinical applications creates challenges. Imaging technologies respond by developing miniaturized CMOS sensors that require higher precision optical assemblies integrated with chip on tip architectures. These complex designs may need to integrate multiple functions – illumination, imaging and working channel in parallel.
Compact stereo-vision optics and designs tested to MTF performance
High quality stereo vision integrated in endoscopic system with double chip on tip CMOS sensors in robotic surgery is becoming a widely adopted imaging modality. Compact high-quality micro-optics on dual sensor integrations enable the surgeon to experience distance, depth and geometry in the target application, often a key factor for fast orientation in complex organ environments. For best experience and use without eye-fatigue, it is a precondition to qualify the micro-optic systems for the two “eyes” to highest quality standards, performed with modulation transfer function (MTF) imaging targets. Optimized endoscopic stereo-vision systems designed to be scalable, reliable, and meeting the demanding requirements for robotic surgery applications are key to this growth market.
Compact angled viewing with micro-prisms
Angled viewing is a long-standing function for optimized endoscopic imaging, especially when coupled with rigid endoscopes allowing the surgeon to capture more visual information on the clinical application. FISBA provides key enabling imaging technology – coated micro-prism systems in combination with additional imaging optics and optimized mirror coatings – to achieve angled endoscopic viewing system designs. A main driver for efficiency is the miniaturized size of the micro-prism systems not exceeding the overall diameter of the imaging optics.
Design and coatings optimized for NIR fluorescence imaging
Clinical endoscopy is being enhanced by fluorescence imaging, for the specific benefit of perfusion imaging and multifocal tumor identification. The design and realization for these dichroic functions has expanded into the near-infrared spectral domain (NIR). FISBA designs and implements micro-optic coatings that enhance the imaging capabilities and allow for greater image contrast. A driver for the effectiveness in fluorescence imaging is the knowledge and expertise on how to spectrally separate the signal amplitudes between visual and fluorescence channel. Our expertise includes sophisticated AR coatings, metallic rear-surface mirrors and masked black chrome coatings to reduce light scatter.
Illumination LED solutions over fiber-bundles integrated to the tip
Multispectral endoscopic imaging coupled with software and artificial intelligence modalities give the surgeon a valuable tool in the detection and identification of smaller early stage lesions. Structured illumination provides another layer to advanced endoscopic imaging systems. FISBA has expertise in the design and integration of fiber-optic flexible light bundles, optimized miniature LED illumination systems, and know how to efficiently couple sources to fiber to maximize brightness. Further requirements such as control of tightness and illumination fiber integrity over prolonged use-cycles are drivers for the system.