Focusing Collection

Making a Wish to Meet a Good Mate during the Tanabata Festival, circa 1820-1830 Creator: Gakutei
Making a Wish to Meet a Good Mate during the Tanabata Festival, circa 1820-1830

The Art School, c1884-1898, (1906). Creator: John Percival Gulich
The Art School, c1884-1898, (1906). Watercolour by British artist John Percival Gulich (1864-1898). From " The Royal Institute of Painters in Water Colours", edited by Charles Holme

Focussing The Gigantic Camera For Work, 1901. Creator: Unknown
Focussing The Gigantic Camera For Work, 1901. From " The Harmsworth Magazine, Volume VI. February 1901-July 1901", by [Harmsworth Bros, Limited, London, 1901]

Abel Pifres solar-powered printing press, c1894 ([c1927). This used Augustin Mouchots solar engine in which a mirror focused the Suns rays onto a small boiler (patented in 1861)

Giant burning glass of the Academie des Sciences, Paris, 18th century, (1874). Artist: Amedee Guillemin
Giant burning glass of the Academie des Sciences, Paris, 18th century, (1874). Constructed under the direction of Antoine Lavoisier (1743-1794) and others, it was used for chemical experiments

Descartes explanation of vision, 1692. Light rays being passed through the eye, being focused by the lens (I) and forming images T, S, R on the retina

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