A new plastic lens material "SR-47" is being proposed for release onto the market. The specification of the lens (in com

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899603
Joined: Mon Aug 02, 2021 8:13 am

A new plastic lens material "SR-47" is being proposed for release onto the market. The specification of the lens (in com

Post by answerhappygod »

A New Plastic Lens Material Sr 47 Is Being Proposed For Release Onto The Market The Specification Of The Lens In Com 1
A New Plastic Lens Material Sr 47 Is Being Proposed For Release Onto The Market The Specification Of The Lens In Com 1 (62.65 KiB) Viewed 12 times
A new plastic lens material "SR-47" is being proposed for release onto the market. The specification of the lens (in comparison to existing materials, Crown Glass, CR-39 and Polycarbonate) is shown below: Refractive Index Abbe Specific Gravity Transmittance Impact Resistance Crown Glass 1.52 60 * 2.54g/cm3 99% Low CR-39 1.49 58 1.31g/cm3 99% Moderate Polycarbonate 1.59 32 1.20g/cm3 99% High SR-47 1.67 32 2.69g/cms 147% High You are to design an anti-reflective coating for SR-47. Assuming a wavelength of 570nm is used as the reference wavelength, the coating should have the following characteristics. Refractive index: ANSWER 2-2 (to TWO decimal places, 1 mark) Thickness: ANSWER 2-3 nm (1 mark)
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”