A polycarbonate ophthalmic-prescription lens series

Area of Science:

• Materials Science
• Optical Engineering
• Ophthalmic Optics

Background:

• Traditional ophthalmic lenses face limitations in weight, thickness, and impact resistance.
• Advancements in polycarbonate materials and coatings are enabling new possibilities for lens performance.

Purpose of the Study:

• To introduce a new series of precision ophthalmic lenses manufactured from advanced polycarbonate.
• To evaluate the optical performance, durability, and physical characteristics of these novel lenses.

Main Methods:

• Utilizing improved polycarbonate materials, advanced production techniques, and novel scratch-resistant coatings.
• Implementing a process-oriented design for enhanced lens manufacturing consistency.
• Testing lens performance against established standards such as ANSI Z80.1 and ANSI Z80.7.

Main Results:

• Achieved surface quality comparable to untreated glass ophthalmic lenses.
• Demonstrated repeatable manufacturing processes ensuring controlled axial power and off-axis performance.
• Maintained optical-center specifications for prescription accuracy across a 40-degree field of view.
• Controlled off-axis astigmatism for effective near-point vision.
• Lenses are significantly lighter and thinner than crown glass equivalents.
• Scratch-resistant coating minimized reflections from the high-index (1.586) material.
• Exceeded impact resistance requirements of ANSI Z80.7 and ANSI Z80.1.

Conclusions:

• The new polycarbonate lens series offers a superior combination of optical clarity, precision, and durability.
• These lenses represent a significant advancement in ophthalmic lens technology, providing enhanced visual performance and safety.
• The manufacturing process ensures high consistency and meets rigorous industry standards for ophthalmic devices.