Newton Isaac. Opticks: or, a treatise of the reflexions, refractions, inflexions and colours light. Also two treatises of the species and magnitude of curvilinear figures

London: Smith&Walford, 1704. — 212 p.
Opticks is a book by English natural philosopher Isaac Newton that was published in English in 1704. (A scholarly Latin translation appeared in 1706.) The book analyses the fundamental nature of light by means of the refraction of light with prisms and lenses, the diffraction of light by closely spaced sheets of glass, and the behaviour of color mixtures with spectral lights or pigment powders. It is considered one of the great works of science in history. Opticks was Newton's second major book on physical science.