Which process step uses the roughing wheel?

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Prepare for the Ophthalmic Optics Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which process step uses the roughing wheel?

Explanation:
The roughing wheel is used for the initial shaping and material removal stage. In lens processing, rough grinding uses a coarse wheel to quickly remove stock and establish the basic surface contour, setting up the lens for finer work. After that, finishing steps use progressively finer abrasives: fining refines the surface further to approach the final shape, and polishing produces the smooth, optically clear finish. Blocking, by contrast, is a mounting/setup step to hold the lens in the grinding/polishing machine and does not involve a wheel.

The roughing wheel is used for the initial shaping and material removal stage. In lens processing, rough grinding uses a coarse wheel to quickly remove stock and establish the basic surface contour, setting up the lens for finer work. After that, finishing steps use progressively finer abrasives: fining refines the surface further to approach the final shape, and polishing produces the smooth, optically clear finish. Blocking, by contrast, is a mounting/setup step to hold the lens in the grinding/polishing machine and does not involve a wheel.

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