FEATURES OF ROUGHNESS EVALUATION OF OPTICAL SURFACES
Annotation
The need to introduce the root-mean-square roughness Rq into regulatory and design documents for optical surfaces is substantiated experimentally. It is noted that this parameter value makes it possible to estimate the energy losses associated with radiation scattering. The results of comparison of Rq and the arithmetic mean deviation of the profile Ra of optical surfaces, which are formed by polishing and diamond micro-turning, are presented. The absence of an unambiguous relationship between these characteristics is shown. The expediency of transition from 2D-metry to 3D-metry when normalizing and measuring roughness is observed; in particular, this is relevant in the case of a lack of symmetry in the roughness topography.
Keywords
Постоянный URL
Articles in current issue
- NEURAL NETWORK MODEL OF ERRORS OF AN AUTONOMOUS AIRCRAFT STRAPDOWN INERTIAL NAVIGATION SYSTEM
- AUTHENTICATION OF A CRITICAL OBJECT WORKSTATION OPERATOR BASED ON COMPUTER HANDWRITING
- METHODOLOGICAL ERRORS OF AN ELECTRONIC SENSOR OF AIRCRAFT AIRSPEED VECTOR PARAMETERS
- THREE-LENS SIX-COLOR SUPERACHROMAT OF A WIDE SPECTRAL RANGE
- ROTARY COMPLEX FOR DYNAMIC VIBRATION TESTING OF NANOSATELLITES
- MODELING THE REINFORCEMENT CORROSION PROCESS IN REINFORCED CONCRETE STRUCTURE AT THE OBJECT OF TRANSPORT INFRASTRUCTURE
- MILLIMETER-RANGE ELLIPSOMETRY IN PROBLEMS OF COMPOSITE MATERIALS DIAGNOSTICS
- APPLICATION OF THE SPECTROPHOTOMETRIC METHOD FOR STUDYING ETHYL ALCOHOL IN LIQUID PHASE MEDIA
- FORMALIZING NATURAL PARALLELISM OF MANAGEMENT AND INFORMATION PROCESSES
- SIMPLIFIED IDENTIFICATION ALGORITHM FOR CLASSICAL LINEAR REGRESSION CONTAINING POWER FUNCTIONS OF UNKNOWN PARAMETER
- FEATURES OF THE PRACTICE OF DEVELOPING STANDARDS TO IMPROVE THEIR QUALITY IN METROLOGICAL SUPPORT TASKS
- FEATURES OF ROUGHNESS EVALUATION OF OPTICAL SURFACES