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Emission theory (vision)

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Emission theory or extramission theory (variants: extromission, extromittism) is the proposal that visual perception is accomplished by eye beams emitted by the eyes. [1]

23 relations: Aphrodite, Atomism, Classical element, Common Era, Empedocles, Euclid, Eye beam, Galen, Gezienus ten Doesschate, Human eye, Ibn al-Haytham, Isaac Newton, John Locke, Lucretius, Optics, Photon, Plato, Ptolemy, Refraction, Salute, Speed of light, Tapetum lucidum, Visual perception.


Aphrodite is the ancient Greek goddess of love, beauty, pleasure, and procreation.

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Atomism (from Greek ἄτομον, atomon, i.e. "uncuttable", "indivisible") is a natural philosophy that developed in several ancient traditions.

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Classical element

Classical elements typically refer to the concepts in ancient Greece of earth, water, air, fire, and aether, which were proposed to explain the nature and complexity of all matter in terms of simpler substances.

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Common Era

Common Era or Current Era (CE) is one of the notation systems for the world's most widely used calendar era – an alternative to the Dionysian AD and BC system.

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Empedocles (Ἐμπεδοκλῆς, Empedoklēs) was a Greek pre-Socratic philosopher and a citizen of Akragas, a Greek city in Sicily.

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Euclid (Εὐκλείδης Eukleidēs; fl. 300 BC), sometimes given the name Euclid of Alexandria to distinguish him from Euclides of Megara, was a Greek mathematician, often referred to as the "founder of geometry" or the "father of geometry".

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Eye beam

In the physics inherited from Plato (although rejected by Aristotle), an eye beam generated in the eye was thought to be responsible for the sense of sight.

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Aelius Galenus or Claudius Galenus (Κλαύδιος Γαληνός; September 129 AD – /), often Anglicized as Galen and better known as Galen of Pergamon, was a Greek physician, surgeon and philosopher in the Roman Empire.

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Gezienus ten Doesschate

Gezienus (or Gesinus) ten Doesschate (11 August 1885, Zwolle – 9 March 1965, Utrecht) was a Dutch ophthalmologist, amateur painter and historian.

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Human eye

The human eye is an organ which reacts to light and pressure.

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Ibn al-Haytham

Hasan Ibn al-Haytham (Latinized Alhazen; full name أبو علي، الحسن بن الحسن بن الهيثم) was an Arab mathematician, astronomer, and physicist of the Islamic Golden Age.

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Isaac Newton

Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution.

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John Locke

John Locke (29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers and commonly known as the "Father of Liberalism".

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Titus Lucretius Carus (15 October 99 BC – c. 55 BC) was a Roman poet and philosopher.

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Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

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The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

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Plato (Πλάτων Plátōn, in Classical Attic; 428/427 or 424/423 – 348/347 BC) was a philosopher in Classical Greece and the founder of the Academy in Athens, the first institution of higher learning in the Western world.

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Claudius Ptolemy (Κλαύδιος Πτολεμαῖος, Klaúdios Ptolemaîos; Claudius Ptolemaeus) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology.

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Refraction is the change in direction of wave propagation due to a change in its transmission medium.

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A salute is a gesture or other action used to display respect.

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Speed of light

The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.

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Tapetum lucidum

The tapetum lucidum (Latin: "bright tapestry; coverlet", plural tapeta lucida) is a layer of tissue in the eye of many vertebrates.

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Visual perception

Visual perception is the ability to interpret the surrounding environment using light in the visible spectrum reflected by the objects in the environment.

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Extramission theory, Visual rays.


[1] https://en.wikipedia.org/wiki/Emission_theory_(vision)

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