Job Description:

• 1) Operates grinder to edge and bevel precision ophthalmic optical lenses: Reads work order or blueprint to determine edge specifications.

• 2) Selects lens holding tool of specified size and mounts tool in truing machine.

• 3) Starts machine and turns handwheel to move cutting tool into lens holding tool to true holding tool.

• 4) Applies heated pitch or other adhesive to lens holding tool and affixes lens on tool.

• 5) Passes beam of light through lens and repositions lens on holding tool until beam remains stationary to center lens on tool or centers lens, using collimator.

• 6) Secures holding tool and lens assembly in fixture of edge grinder.

• 7) Adjusts grinder for variables, such as speed, rate of feed, and depth and angle of cut.

• 8) Starts machine and turns handwheel to bring grinding wheel in contact with lens.

• 9) Observes machine operation; stops machine to measure lens edge, using precision measuring instruments, such as micrometers and calipers; and adjusts machine to grind and bevel edge to specifications.

• 10) May hold lens against grinding wheel to bevel edges to specified angle.

• 11) May set up machines for other workers and train workers to operate machines.