Making DIY Lenses with Epoxy

Learn how to create DIY lenses using epoxy and a replication molding technique in this 24-minute video tutorial. Explore the process of making optical-grade lenses, including the challenges and considerations involved. Discover the importance of surface roughness and figure deviation in achieving an optical finish. Examine the effects of curing temperature and shrinkage on lens quality. Gain insights into assessing residual stress using polarized light. Follow along as the instructor demonstrates molding and casting techniques, discusses material selection, and addresses common difficulties such as mold release and shrinkage. Analyze fabricated lens examples and learn about potential alternatives to silicone molds. Conclude with refinement suggestions for future lens-making projects and final thoughts on the DIY lens-making process.

Intro
Replication Molding
Alternative mandrel material
Molding and casting technique
Fabricated lens examples
Molding priorities
Molding materials and considerations
Mold release difficulties
Shrinkage difficulties
Effect of Temperature
Internal stress and polarized light
Mechanical difficulties
Alternatives to silicone?
Direct molding off mandrel?
Refinement for future work
Concluding remarks