Process designed for experimentation for increased-caliper Fresnel lenses
- Minnesota Mining and Mfg. Co., St. Paul, MN (United States). Optics Technology Center
The feasibility of producing increased caliper linear and point focus Fresnel lenses in a continuous sheet is described. Both a 8.16-inch-square radial 2 {times} 7 parquet, and a 22-inch-wide linear lens were produced at .11-inch in caliper. The primary purpose of this experimentation is to determine the replication effectiveness and production rate of the polymeric web process at increased thickness. The results demonstrated that both radial and linear lenses, at increased caliper, can be replicated with performance comparable to that of the current state-of-the-art 3M laminated lenses; however, the radial parquets were bowed on the edges. Additional process development is necessary to solve this problem. Current estimates are that the .11-inch caliper parquets cost significantly more than customer laminated parquets using 0.022-inch thick lensfilm.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States); Minnesota Mining and Mfg. Co., St. Paul, MN (United States). Optics Technology Center
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7102952
- Report Number(s):
- SAND-91-7017; ON: DE92019464
- Country of Publication:
- United States
- Language:
- English
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