# Tasks & work activities — optical instrument assembler

Source: O*NET 30.3, occupation 51-9083.00 (Ophthalmic Laboratory Technicians).

## Task statements

- **[Core]** Adjust lenses and frames to correct alignment.
- **[Core]** Mount, secure, and align finished lenses in frames or optical assemblies, using precision hand tools.
- **[Core]** Mount and secure lens blanks or optical lenses in holding tools or chucks of cutting, polishing, grinding, or coating machines.
- **[Core]** Shape lenses appropriately so that they can be inserted into frames.
- **[Core]** Assemble eyeglass frames and attach shields, nose pads, and temple pieces, using pliers, screwdrivers, and drills.
- **[Core]** Inspect lens blanks to detect flaws, verify smoothness of surface, and ensure thickness of coating on lenses.
- **[Core]** Clean finished lenses and eyeglasses, using cloths and solvents.
- **[Core]** Select lens blanks, molds, tools, and polishing or grinding wheels, according to production specifications.
- **[Core]** Examine prescriptions, work orders, or broken or used eyeglasses to determine specifications for lenses, contact lenses, or other optical elements.
- **[Core]** Set dials and start machines to polish lenses or hold lenses against rotating wheels to polish them manually.
- **[Core]** Set up machines to polish, bevel, edge, or grind lenses, flats, blanks, or other precision optical elements.
- **[Core]** Repair broken parts, using precision hand tools and soldering irons.
- **[Core]** Position and adjust cutting tools to specified curvature, dimensions, and depth of cut.
- **[Core]** Inspect, weigh, and measure mounted or unmounted lenses after completion to verify alignment and conformance to specifications, using precision instruments.
- **[Supplemental]** Remove lenses from molds and separate lenses in containers for further processing or storage.
- **[Supplemental]** Lay out lenses and trace lens outlines on glass, using templates.
- **[Supplemental]** Immerse eyeglass frames in solutions to harden, soften, or dye frames.
- **[Supplemental]** Control equipment that coats lenses to alter their reflective qualities.

## Detailed work activities

- Align parts or workpieces to ensure proper assembly.
- Clean workpieces or finished products.
- Construct customized assistive medical or dental devices.
- Draw guide lines or markings on materials or workpieces using patterns or other references.
- Immerse objects or workpieces in cleaning or coating solutions.
- Inspect finished products to locate flaws.
- Measure dimensions of completed products or workpieces to verify conformance to specifications.
- Mount attachments or tools onto production equipment.
- Mount materials or workpieces onto production equipment.
- Operate grinding equipment.
- Operate painting or coating equipment.
- Polish materials, workpieces, or finished products.
- Read work orders or other instructions to determine product specifications or materials requirements.
- Remove workpieces from molds.
- Repair medical or dental assistive devices.
- Select production equipment according to product specifications.
- Set equipment controls to meet cutting specifications.
- Shape glass or similar materials.
- Solder parts or workpieces.
- Weigh finished products.