Frenzel Goggles

This is a plan for a low cost traditional Frenzel Goggle used for vestibular evaluation and characterization of nystagmus. Components and cost (CDN) excluding filament:

1) 50mm Diameter, 50mm focal length biconvex lenses x 2: $8.18
https://www.amazon.ca/Ajax-Scientific-Double-Convex-Bi-Convex-Spherical/dp/B00EPQ9SO4/ref=sr_1_fkmr1_1?ie=UTF8&qid=1539403532&sr=8-1-fkmr1&keywords=10mm+biconvex+lenses

2) 4cm width black headband ~$5

3) Button Lamp Adhesive LED's: $4.29 for 2
https://www.amazon.ca/gp/product/B0721NYMJN/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

4) Silicone weather strips, or similar material ~3 dollars unit cost
i.e. https://www.amazon.ca/TRIXES-Window-Excluding-Adhesive-Sealing/dp/B00YSKPS3W/ref=sr_1_12_sspa?ie=UTF8&qid=1539404108&sr=8-12-spons&keywords=window+seal+strip&psc=1
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Total Component Cost for Fabrication: ~$20.50



Assembly materials required: Contact Cement (Heavy Duty)