Spectacle frame prices

Mechanical properties and microstructures of a new β Ti-25Nb-15Zr alloy for spectacle frame were studied. The results show that the optimum cold rotary swaging reduction of the alloy is between 50% and 70%. The wire of 3mm in diameter exhibited an equiaxed microstructure consisting only β single phase and fine grain with less than 10mm size when the alloy is heat treated at 1003K for 1.8Ks. While it has good shape memory property, and the maximum complete recovery strain was up to 3% at room temperature. At the same time, the flattened frame legs were solution-treated to improve their elastic behavior, so the residual strain was completely or partly recovered due to transformation of the microstructure.

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N.S.W. PREMIER OPENS SPECTACLE FRAME PLANT EXTENSIONS AT ST. MARY'S

Clinical and Experimental Optometry ◽

10.1111/j.1444-0938.1969.tb00104.x ◽

1969 ◽

Vol 52 (3) ◽

pp. 92-93

Keyword(s):

Spectacle Frame

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Dimensional optimization of the crossbeam of the spectacle frame CNC polishing machine based on sensitivity analysis

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/242/1/012055 ◽

2017 ◽

Vol 242 ◽

pp. 012055

Author(s):

Kang Chen ◽

Kai He ◽

Ming Ge ◽

Ruxu Du

Keyword(s):

Sensitivity Analysis ◽

Spectacle Frame ◽

Polishing Machine ◽

Dimensional Optimization

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Timbre Analysis of the Sonicguide

Journal of Visual Impairment & Blindness ◽

10.1177/0145482x7707100705 ◽

1977 ◽

Vol 71 (7) ◽

pp. 309-314 ◽

Cited By ~ 1

Author(s):

James Welch

Keyword(s):

Training Methods ◽

Spectral Analyzer ◽

Spectacle Frame ◽

Mobility Aid

The Sonicguide, an ultra-sonic binaural device mounted in a spectacle frame, is used as a secondary mobility aid. Since categorizing signals by timbre may improve training methods and clarify the capabilities of this device, the timbre of various Sonicguide signals was measured and analyzed by a “Sona-Graph”—a sound spectral analyzer. Signals showed considerable variation, but could be categorized into three groups. The characteristics of each group are readily definable and signals of any one group can easily be distinguished from signals of another group. In addition, certain signals within a group may be distinguished from signals in the same group.

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