Open trisp3ar opened 2 years ago
Silicone on Vacuum chamber is curing should be cured by tomorrow.
The second lens made with NOA61 looks better after I let it dry in air a few days than it did before. Weird fragments on what I think is the surface as well as embedded bubbles that are reducing image quality.
Addressing the bubbles through vacuum degassing once chamber is cured.
Not sure the cause of the other defects in the lens, maybe due to uneven curing maybe curing too fast?
Not going to waste more of the expensive NOA61 going to go back to the cheap Chinese optical adhesive until I can develop a robust process and techniques for making lenses reliably. As stated by the researches the process for creating lenses should work the same no matter the adhesive or resin used.
Once good optical clarity is achieved next step will be to design an biconvex spherical optic and make it. I'm thinking making an optic to replace the lens in the current BPNVG.
Once that is achieved we should validate our process by making:
Once our process has been validate for these lenses we could work on developing a method for controlling volume to create
Taking a step back from trying to make a spherical optic. Am going to spend time working out the problems I'm having with optical quality. Going to focus on making flats on glass slides and trying different curing methods to see if that impacting the quality of the lens.
Update: created some optics in air that looked good but when trying in water it failed again. Thinking water is causing some reaction with the polymers and making it not possible to achieve a good surface finish.
Success in making optical flat using acrylic by hand polishing. Pivoting to thermoplastic lenses after the success. Created and currently printing some hard tooling to create spherical surfaces onto the lenses. Need to determine adhesive solution for the sand paper to adhere it to the hard tooling.
Created first acrylic Plano convex lens.
Problems:
Requierements to be specified.