US Patent:
20150140316, May 21, 2015
Inventors:
- St. Paul MN, US
William D. Coggio - Westford MA, US
Thomas J. Ludemann - Maplewood MN, US
Emilie L. Rexeisen - Mendota Heights MN, US
William R. Dudley - Sebring FL, US
Steven J. McMan - Stillwater MN, US
Michael L. Ruegsegger - Mahtomedi MN, US
International Classification:
B05D 5/06
G02B 1/14
G02B 5/02
B05D 1/26
B05D 1/30
US Classification:
4283166, 4274192, 4274071, 4283179
Abstract:
The present disclosure describes a protective coating for a low index material, and a process for preparing a protected low index material. The protective coating partially penetrates the pores of a low index material, providing a seal protecting the pores, and can strengthen the construction by forming a gradient in properties of the protected low index material. The present disclosure further provides a diffusing low index optical element having a protected low index material and a diffusing layer disposed on the low index material.