As the creators of the SELFOC® Lens and as the world's largest supplier of gradient-index lenses, NSG Europe makes its considerable technological resources available to its customers through a product development program unparalleled in the industry. Please review our wide assortment of products and protect your investment with the recommended procedures for proper storage and handling of your lenses. Power Coupling and Transmission SELFOC MicroLens SELFOC MicroLenses are ideal for many signal transmission and focusing applications. Applications: Laser diode-to-fiber coupling Fiber-to-detector coupling Fiber-to-fiber coupling Focusing and collimating In addition, SELFOC lenses are extensively used for laser diode or fiber collimation: bar code scanners, optical isolators, circulators, pointers, etc. SELFOC Plano-Convex (PC) Lens The SELFOC Plano-Convex Lens features a curved surface on one end facet, designed to reduce spherical aberration in the lens. The result is an increased acceptance angle, smaller spot size. The most common application is coupling from a light source, such as a laser diode or LED, into an optical fiber. SELFOC Laser Diode Collimating Lenses SELFOC Laser Diode Collimating Lenses are designed to be compatible with CD lasers and other types of packages. They are commonly used in laser beam printers, bar code scanners and sensors. The cylindrical shape of the lens allows it to be easily aligned and mounted. The Pick-Up Lens (SPL) is mounted in an anodized aluminum holder. Advantages: Controlled Wavefront Aberration Compact Low Cost Singlet Construction Simplified Mounting

Imaging

SELFOC Imaging Lens (ILW, ILH) The SELFOC Imaging Lens is commonly used as an objective lens for small diameter imaging systems where conventional lenses are not suitable due to size limitation. The lens is designed to gather light from an object and form an inverted image at the back surface of the lens. Typical applications include fiberscope (attached to a coherent fiber bundle) and rigid endoscope (attached to a relay lens such as a SELFOC Rod Lens). Advantages: Small Diameter Stable Cylindrical Shape Simplified Mounting SELFOC Rod Lens The SELFOC Rod Lens is designed as a relay lens for small diameter rigid endoscopes. It is usually used in conjunction with a SELFOC Imaging Lens (objective lens) to form a complete system. Cover glass and stainless steel tube are available as options.

Lens Arrays

SELFOC Lens Array (SLA) The SELFOC Lens Array is used in 1:1 image transfer applications. The arrays are composed of one or more rows of lenses. The images from adjacent lenses overlap and form a continuous erect image. The SLA's short total conjugate (TC), ranging from 9 to 80 mm, allows the designer to decrease the optical path length and, thus, reduce the overall size of the system. Applications: Copier Facsimile CRT Printer LED/LCD Printer Electronic Copyboard Scanner Hand-held copier Card Reader Planar MicroLens Array (PML) The Planar MicroLens is a two-dimensional lens array, which is specifically designed for either parallel processing or image enhancement. Parallel optical interconnections using the PML can be aligned and mounted to a laser diode array. Creating a hermetic seal protects the diode array and improves its reliability. For Image enhancement applications, a PML placed between the light source and the LCD will allow more light to be directed to the individual pixels. This results in a brighter image with decreased heating of the panel. Applications: Flat panel display CCD Parallel Optical Interconnect Confocal Microscopy Telescopic Systems Imaging Scanning Sensor/Detector Array Coupling LD/LED Array Coupling Fiber Array Collimation