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  • Lens tissue, LM
  • Contact lens
  • Contact lens
  • Tobias and the angel stroll through a classical landscape. Mezzotint by B. Lens.
  • Saint Stephen: his martyrdom by stoning. Engraving by P. Masson after B. Lens.
  • A woman holding a tobacco pipe and a drinking glass. Mezzotint by B. Lens.
  • Iris Coloboma with intra-ocular lens.
  • Optics: lens grinders at work (top) and stages in grinding a lens with the tools used (below). Engraving by Benard after Lucotte.
  • Formation of image by means of a lens.
  • Optics: the principle of multi-lens telescopes. Engraving.
  • The seven golden candlesticks described in the book of Revelation. Engraving by L. Masson after B. Lens.
  • Sadler's Wells and the New River, with the city in the background. Engraving by A. Cruse after B. Lens, 1730.
  • Sadler's Wells and the New River, with the city in the background. Engraving by A. Cruse after B. Lens, 1730.
  • Eye showing a dislocation of the lens into the anterior chamber
  • Eye with dislocation of the lens due to a melanotic sarcoma
  • Quaestio medica chirurgica ... An sola lens crystallina cataracte sedes? / [Jean Descemet].
  • Quaestio medica chirurgica ... An sola lens crystallina cataracte sedes? / [Jean Descemet].
  • Quaestio medica chirurgica ... An sola lens crystallina cataracte sedes? / [Jean Descemet].
  • Optics: lens grinding tools and different products with lenses. Engraving by Benard after J.R. Lucotte.
  • The eye: section of the ciliary body, cornea and lens. Colour lithograph by F. Foedisch, 1875.
  • Three inventions: a torsion-bar for measuring forces, a drill-bit, and a lens. Engraving by Mutlow, c. 1812, after J. Farey.
  • Compass Microscope - 18th century development of the Murschenbroek simple microscope. It has a circular disc carrying lens of various powers.
  • A young man, 'Sir Fopling Flutter' ogles women through a lens while a bailiff serves him a writ. Mezzotint, 1769, by J. Dixon after himself.
  • An optical experiment using a giant lens to reflect sun-rays to create fire, with optical instruments scattered and fountains in a Baroque setting. Line engraving by C.N. Cochin the elder, 1737, after J. de La Jouë.
  • A woman and a boy are looking at prints with the aid of a lens and mirror; an antique urn and a guitar in the background. Coloured stipple print by J.F. Cazenave after L.L. Boilly, ca. 1793.
  • Tyndall's apparatus for experiments disproving doctrine of spontaneous generation, used here as a culture chamber. A microscope in a horizontal position with artificial illumination, an oil immersion lens, ect. This is the equipment used by Dallinger and Drysdale for their investigations of the life histories of the manads.
  • Elephant's hair. Slide by Topping - x165 - lamp. Beck Intensity and ground glass and wratten 45a filter. Condenser - Leitz 1.4 NA. Camera ext. 215 mm. Plate - Kodak Pan. Exp. 5.75m. Fine grain 1D11. Talen F.C. Griggs 29.9.48 op.lat. Top lens removed. OBJ. Watson Holes 12mm. 0.65 N.n. used 182 mm. thickcore Eyepiece x 14.
  • Women grind glass lenses while two customers try spectacles on. Coloured line engraving, 1799.
  • Women grind glass lenses while two customers try spectacles on. Coloured line engraving, 1799.
  • Optics: a telescopic microscope, and hand-lenses. Aquatint, 1787 [by R. Laurie after Milne ?].