Multifocals: Yesterday, Today and Tomorrow – Part 3 - 1 Self-Directed Hour

Multifocals: Yesterday, Today and Tomorrow – Part 3 - 1 Self-Directed Hour

28.25

1 Self-Directed Hour

Only 60 years ago, a lens-surfacing lab was a major undertaking with hundreds of wrought iron laps, base curve grinding hand pans and charts to calculate the thickness and prisms of lenses. This correspondence course walks you through the technological changes that have impacted the 20th century. Traditional versus free form surfacing and the importance of technology and lens design will also be discussed.

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