Каталог NIKON iNEXIV VMA на английском - страница 5

New zooming optics make 3D parts measurements easier Newly designed optics with an Apochromat LWD objective 10x zoom with wide field of view lens The VMA-2520 comes standard with a five-step, 10x zoom optical Nikon has developed a new optical system that covers low system that provides both superb resolution at high magnification magnifications, has a long working distance and is suitable for and a wide field of view at low magnification. Greater position measuring three-dimensional parts. The Apochromat objective lens accuracy, achieved by eliminating backlash in the zooming features low distortion (0.1% or less) while providing a long mechanism when using the five-step zoom range, makes it ideal 73.5mm working distance throughout all magnification ranges. for measurement applications. Moreover, improvements in the LED illumination system also increase image contrast by utilizing an Apochromatic lens to compensate for the blue wavelengths emitted from white LEDs. Optical magnification 0.35x 0.6x 1x 1.8x 3.5x Magnification on screen 12x 20x 34x 62x 120x (with 17" monitor at SXGA resolution) Field of view 13.3 x10mm 7.8 x5.8mm 4.7 x3.5mm 2.6 x1.9mm 1.33 x1mm White LED illumination for fast, high-accuracy measurement 8-segment LED ring illumination This illumination system can be controlled from eight different directions. The white LED light with an average incidence angle of 18° makes possible observations of extremely low-contrast edges which are usually invisible under episcopic illumination. It is effective for measuring molds, medical devices and other three- dimensional parts. High-intensity white LED light source for all Episcopic and diascopic illuminations illumination systems Both episcopic and diascopic illuminations employ a white LED The VMA-2520 employs a white LED light source for episcopic light source that provides high-intensity closer to that of a halogen illumination, diascopic illumination and 8-segment LED ring lamp. For the episcopic illumination, which previously did not use a illumination. The high-intensity white LED features constant color white LED light source, the VMA-2520 employs the first flyeye temperature and less flicker, thus it provides stable measurement integrator in a measuring system, realizing both sufficient NA and accuracy, particularly when observing color images. With the LED's uniform illumination over a wide field of view. The diascopic quick response to lighting controls, increased measurement illumination uses a white LED array, backlight system. throughputs can be achieved. 5