Related Experiment Video
Updated: Jul 4, 2026
04:43
Visualizing Visual Adaptation
Published on: April 24, 2017
Color appearance: Maxwellian vs. Newtonian views
1Department of Psychology, Hunter College, City University of New York, 695 Park Avenue, New York, NY 10065, USA. jgordon@hunter.cuny.edu
Vision Research
|July 1, 2008
Summary
Comparing Maxwellian-view and natural (Newtonian-view) optical systems reveals differences in color perception. Wavelengths for the same hue differ between systems, with Newtonian view requiring longer wavelengths.
Area of Science:
- Vision Science
- Color Perception
- Optical Physics
Background:
- Color appearance is studied using Maxwellian-view and natural (Newtonian-view) optical systems.
- Previous studies have not precisely compared these systems when pupil size varies.
- Understanding these differences is crucial for accurate color research.
Purpose of the Study:
- To compare color appearance results obtained from Maxwellian-view and Newtonian-view optical systems.
- To investigate the impact of natural pupil size relative to Maxwellian entrance pupil size.
- To determine if wavelength requirements for specific hues are consistent across viewing systems.
Main Methods:
- Utilized both Maxwellian-view and Newtonian-view optical systems for color perception experiments.
- Controlled for variations in natural pupil size relative to the Maxwellian beam's entrance pupil.
- Measured the specific wavelengths required to elicit a given hue under each viewing condition.
Main Results:
- Results from Maxwellian-view and Newtonian-view systems are not precisely comparable.
- Discrepancies arise when the natural pupil is significantly larger than the Maxwellian entrance pupil.
- For a consistent hue, the required wavelength under Newtonian view is longer than under Maxwellian view.
Conclusions:
- Viewing system choice significantly impacts color appearance studies.
- Pupil size is a critical factor influencing the comparability of results between optical systems.
- Future research should account for these viewing system differences to ensure accurate color perception data.
Related Concept Videos
01:28Symmetry in Maxwell's Equations
Once the fields have been calculated using Maxwell's four equations, the Lorentz force equation gives the force that the fields exert on a charged particle moving with a certain velocity. The Lorentz force equation combines the force of the electric field and of the magnetic field on the moving charge. Maxwell's equations and the Lorentz force law together encompass all the laws of electricity and magnetism. The symmetry that Maxwell introduced into his mathematical framework may not be...
01:29Maxwell's Equation Of Electromagnetism
James Clerk Maxwell (1831–1879) was one of the major contributors to physics in the nineteenth century. Although he died young, he made major contributions to the development of the kinetic theory of gases, to the understanding of color vision, and to understanding the nature of Saturn's rings. He is probably best known for having combined existing knowledge on the laws of electricity and magnetism with his insights into a complete overarching electromagnetic theory, which is represented by...
01:15Newton's Law of Gravitation
Our everyday observation tells us that all objects close to the Earth naturally tend to fall to the ground. Early philosophers assumed that this downward force was unique to Earth. By the 16th century, Nicolaus Copernicus (1473-1543) put forward the heliocentric theory, which suggested that Earth and other planets orbited the sun, while the Moon orbited the Earth. However, it was Isaac Newton (1642-1727) who linked these two motions together in the 17th century. He reasoned that the force of...
01:24Newton's Law of Gravitational Attraction
Sir Isaac Newton established the universality of the law of gravitational attraction based on empirical evidence and inductive reasoning. He published his work in Philosophiae Naturalis Principia Mathematica ("the Principia") on July 5, 1687.
Newton's law of gravitational attraction is a fundamental law of physics that governs the attraction between objects. It states that the magnitude of the gravitational force between any two objects is proportional to their masses and inversely proportional...
Newton's law of gravitational attraction is a fundamental law of physics that governs the attraction between objects. It states that the magnitude of the gravitational force between any two objects is proportional to their masses and inversely proportional...
01:20Newton's Law of Motion
When we observe objects around us, one question that comes to mind is why they move or stay still. The answer to this question can be explained using Newton's laws of motion. These laws describe the fundamental principles of motion and the effects of forces on objects.
The first law of motion, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will continue to move at a constant speed and direction unless acted upon by an external force.
The first law of motion, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will continue to move at a constant speed and direction unless acted upon by an external force.
01:18Newtonian Fluid: Problem Solving
Newtonian fluids exhibit a constant viscosity, meaning their shear stress and shear strain rate are directly proportional. This property ensures a predictable and stable response to applied forces, maintaining a linear relationship between force and flow. Examples include water, air, and light oils, consistently demonstrating this proportional behavior regardless of external conditions.
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...