Science
A body of knowledge, often formulated as laws and theories, based on the collection of data through observation and experiment.
PHYSICS: OPTICS
Optics: the scientific study of light and vision; its various applications include lenses, microscopes, lasers and fiber optics.
wave
Oscillation caused by a disturbance; as it propagates through a medium (mechanical waves) or a vacuum (electromagnetic waves), it carries energy.
electromagnetic spectrum
Electromagnetic waves that are classified in ascending order of energy (frequency); they propagate at the speed of light (300,000 km/s).
color synthesis
Technique of generating color by combining light rays or subtracting them to obtain a colored image.
vision
Ability to perceive shapes, distances, motion and colors; it is related to light rays and varies depending on the degree of sensitivity of the eye.
![vision defects [1]](/images/science/physics-optics/vision/vision-defects_1.png "vision defects [1]")
![vision defects [2]](/images/science/physics-optics/vision/vision-defects_2.png "vision defects [2]")
![vision defects [3]](/images/science/physics-optics/vision/vision-defects_3.png "vision defects [3]")
lenses
Transparent pieces of material (usually glass) that cause light rays to converge or diverge to form a sharp image (eyeglasses, microscopes, telescopes, cameras).
pulsed ruby laser
Device that produces a thin and very intense colored light beam; its various applications include fiber optics, manufacturing and surgery.
![prism binoculars [1]](/images/science/physics-optics/prism-binoculars_1.png "prism binoculars [1]")
prism binoculars [1]
Optical instrument made up of two identical telescopes, one for each eye; it magnifies both near and distant objects.![prism binoculars [2]](/images/science/physics-optics/prism-binoculars_2.png "prism binoculars [2]")
prism binoculars [2]
Optical instrument made up of two identical telescopes, one for each eye; it magnifies both near and distant objects.
magnifying glass and microscopes
Optical instruments used to magnify the image of a near object; they range in strength from low (magnifying glass) to strong (microscope).
