Demainbray's turquoise disc
1745-1755
Demainbray's yellow disc
1745-1755
Demainbray's convex lens
1750
Demainbray's scioptric ball
1745-1755
Demainbray's model of a camera obscura
1752
Demainbray's optical model
1752
Demainbray's optical model
1752
Demainbray's optical model
1752
Demainbray's optical model
1752
"Milky" prism which produces Rayleigh scattering
Demonstration apparatus showing recomposition of light dispersed by a prism
Combination of 3 prisms to show achromatism
1872
Bridge's diffraction demonstration apparatus
1860-1890
Brass demonstration polariscope with biaxial crystal
1830-1880
Distorting viewer: two prisms in cardboard case
1850-1924
oscillating prism
1873-1877
Black glass pyramidal prism
1872
Demonstration polariscope with red leather case.
1830-1880
(Adjustable) complementary prism
1872