Common Pitfalls & How to Avoid Them Part Two
- Lens Coatings: Start from Scratch! Laspina, Leah // Review of Optometry;9/15/2007 Part 1 of 2, Vol. 144 Issue 9, p46
The article provides information on the best services an optometrist can offer to his patient. In this context, the author offers lens treatments and coatings to teach patients how their lenses can help them even more. It has been mentioned that scratch-resistant coatings are basic fare for an...
- Direct Surfacing. Young, Steele // LabTalk;Mar/Apr2008, Vol. 36 Issue 159, p22
The article examines whether direct surfacing of ophthalmic lenses is better than conventional processing. The steps in conventional processing of lenses include generating through the rough geometry using a milling technique, then fine grinding the surface to final form and readying the surface...
- Buffing Hints. // Products Finishing;Nov97, Vol. 62 Issue 2, p50
Presents several tips for polishing and buffing. Basic buffing motions; Significance of the buff and center diameters; Reason for using a biased-type buff.
- Buffing Compound Application Methods. Borrosch, Greg // Products Finishing;Apr2003, Vol. 67 Issue 7, p60
Focuses on two types of buffing compounds, solid bar compound and liquid buffing compound. Application areas of solid bar compound and liquid buffing compound; Method of application of liquid buffing compound; Advantages of using high pressure system in liquid buffing compound.
- Processing Trivex. Cross, Keith // LabTalk;Jul/Aug2008, Vol. 36 Issue 161, p18
In this article, the author discusses the difficulty in processing Trivex lens materials. According to the author, laboratory managers often had to guess as to which process setting they used based on the specific type of equipment they had. He offers some strategies for blocking, generating,...
- Coating helps keep AR lenses cleaner. // Ophthalmology Times;4/15/2006, Vol. 31 Issue 8, p72
The article evaluates Crizal AlizÃ© with Clear Guard, the enhanced version of the Crizal AlizÃ© anti-reflective coating from Essilor of America Inc., and offers information on the distinct features and capabilities of the anti-reflective coating.
- NEEDS BASED SOLUTIONS - LENSES. // 20/20;Aug2008, Vol. 35 Issue 9, Special section p22
The article offers issues and topics related to lenses in the U.S. Progressive lenses are those which front surface steepens towards the bottom and creates a gradual increase in plus power. When providing the clearest vision to a patient, anti-reflective (AR) lenses are critical in providing...
- Effect analysis of the residual error evaluation method used in bonnet polishing process for aspheric lens. // International Journal of Advanced Manufacturing Technology;Dec2013, Vol. 69 Issue 9-12, p2505
The purpose of this paper is to investigate the effect of the residual error evaluation method used in bonnet polishing (BP) process to the axisymmetric aspheric surface accuracy. In the past, few attentions have been paid to the normal direction error (NE) of the aspheric surface, not to...
- LENS MANUFACTURE AND DESIGN. Anstis, A. Howard // British Kinematography;Feb1949, Vol. 14 Issue 2, p37
The article provides information on lens manufacture and design. Camera and projection lenses are either concave or convex in form and are made of optical elements. The lens designer uses various types of optical glass in creating lenses. The components of optical glass are mentioned, as well as...