منابع مشابه
Thermal Motion of the Stis Optical Bench
Various tests have been done of the STIS using internal wavecals to measure thermal motion of the spectral format on the detectors. In most cases, the spectral format moves less than the speci cation not to exceed 0.2 pixels per hour. Primary causes of the motion are 1) changes to the thermal design dictated by the warmer Aft Shroud environment and 2) on-orbit power cycling of MAMA electronics ...
متن کاملImproving optical bench radius measurements using stage error motion data.
We describe the application of a vector-based radius approach to optical bench radius measurements in the presence of imperfect stage motions. In this approach, the radius is defined using a vector equation and homogeneous transformation matrix formulism. This is in contrast to the typical technique, where the displacement between the confocal and cat's eye null positions alone is used to deter...
متن کاملOptical diagnostic and biophotonic methods from bench to bedside.
The sixth Inter-Institute Workshop on Optical Imaging from Bench to Bedside was held at the National Institutes of Health (NIH) in Bethesda, Maryland, in October 2009. The broad impact of biophotonics on biomedical research was exemplified by the generous support that was provided by several diverse institutes and centers within NIH. These included the National Heart, Lung, and Blood Institute ...
متن کاملOptimization of an Optical Test Bench for Tire Properties Measurement and Tread Defects Characterization
Tire characteristics and behavior are of great importance in vehicle dynamics since the forces transmitted in the tire-road contact are the main contributors to global vehicle performance. Several research groups have focused on the study and modeling of tires. Some of the most important factors that need to be known are tread characteristics and pressure distribution in the tire-ground contact...
متن کاملComparison of bifocal and trifocal diffractive and refractive intraocular lenses using an optical bench.
PURPOSE To assess the differences in optical performance of 9 multifocal IOLs using the same optical bench and to propose a possible comparison for surgeons. SETTING Rothschild Foundation, Paris, France. DESIGN Experimental study. METHODS Nine IOLs (Acrysof Restor +3.0 diopter [D] SN6AD1, Acrysof Restor +4.0 D SN60D3, Acrysof aspheric monofocal SN60WF, Acri.Lisa 366D, Finevision Micro F, ...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1916
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1916.tb01685.x