Finishing of Optical Materials Using Fluid Jet Polishing
نویسندگان
چکیده
The characteristics of Fluid Jet Polishing (FJP), a newcomer in the field of optical fabrication, or more specifically optical finishing, are presented. Comments on the process possibilities are given, e.g. spot shape, process speed, and parameter dependencies. Preliminary results on a wide range of materials are discussed.
منابع مشابه
Fluid jet polishing of optical surfaces.
We present a new finishing process that is capable of locally shaping and polishing optical surfaces of complex shapes. A fluid jet system is used to guide a premixed slurry at pressures less than 6 bars to the optical surface. We used a slurry comprising water and 10% #800 SiC abrasives (21.8 mum) to reduce the surface roughness of a BK7 sample from 350 to 25 nm rms and to vary the shape of a ...
متن کاملSurface integrity of fluid jet polished tungsten carbide
In recent years, Fluid Jet Polishing (FJP) has been studied for its potential as a finishing method on optical lenses, mirrors and molds for a number of materials, such a glass and nickel. In this paper, the surface integrity of binderless tungsten carbide after polishing by FJP was studied experimentally. Two aspects in particular were focused on: (1) identifying process conditions under which...
متن کاملAbrasive Jet Polishing and its Applications in Surface Finishing
Problem statement: Single Point Diamond Turning (SPDT) is highly deterministic and versatile in producing various forms of precise optics. A typical example is the production of large offaxis aspheric mirrors and various infrared mirrors and mandrels. However, the fine periodical turning marks left in the surface critically limit its performance and they are difficult to be avoided for traditio...
متن کاملCharacterization of Pad Materials in Abrasive Profile Polishing
INTRODUCTION Hard and temperature resistant materials are used for mold manufacturing of optical glass lenses. These materials are not machinable by ultra precision diamond milling and turning processes. For example hardened steel or tungsten carbide can be ground in optical quality regarding shape but additional polishing is necessary to guarantee the high requirements for optical surface qual...
متن کاملEffect of Finishing and Polishing Time, Technique and Surface Coating on Microleakage of Encapsulated Restorative Resin Modified Glass Ionomer: An In Vitro Study
Background and Aim: This study aimed to assess the effect of finishing and polishing time, technique and surface coating on microleakage of encapsulated restorative resin modified glass ionomer (RMGI). Materials and Methods: In this in vitro study, 40 freshly extracted human premolars were selected. Two standard class V cavities were prepared on the buccal and lingual surfaces of each tooth. T...
متن کامل