| Job Title |
Optical-glass Etcher |
| Job Description |
Etches Numerals And Graduation Lines On Prisms And Other
Optical Glass Surfaces For Use In Optical Instruments, Using
Pantograph Engraver: Mounts Glass Specimens In Holder. Dips
Glass Elements In Molten Wax To Obtain Uniform Protective
Coating. Positions Tracing Stylus Of Pantograph On Template And
Guides Stylus Around Template. Inscribes Pattern Of Lines And
Numerals On Elements In Wax Coating With Needle Which Is Affixed
To Pantograph Arm. Exposes Glass To Hydrofluoric Acid Fumes To
Etch Pattern. Cleans Glass With Water And Solvents. Fills Etched
Characters With Opaque Paste To Improve Readability. Inspects
Etched Work For Uniformity, Using Calibrated Microscope.
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