set of diffraction gratings
Date: circa 1985
Inventory Number: 2004-1-0367
Classification: Diffraction Grating
Subject:
Maker: American ?
Cultural Region:
Dimensions:
disc: 9.3 × 9.3 × 0.5 cm (3 11/16 × 3 11/16 × 3/16 in.)
rectangle: 11.4 × 11.4 × 0.2 cm (4 1/2 × 4 1/2 × 1/16 in.)
Material:
Description:
Three glass disks, 2 plain and one with a strip of a diffraction ruling. Also a square plate of glass with 4 rulings of different densities. These are labeled 48, 49, 50, 51.
Signedunsigned
Inscribedon disk: Pl. 33 6-26-85
Curatorial RemarksThe square is 12x12. The disks are 9.5 dia.
ProvenanceGift of Henry E. Breed II, 2004.