Variable Wavelength Hologram

Made:
1985 in St Asaph
manufacturer:
Pilkington P.E. Limited

Variable wavelength hologram by P. E. Pilkington Ltd., St. Asaph, Clwyd, Wales, 1985. Originally shown in metal frame/stand.

Details

Category:
Optics
Object Number:
1985-758
Materials:
glass and metal (unknown)
credit:
Pilkington, P.E. Ltd.