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34 Cards in this Set
- Front
- Back
always inverted
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real image
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image only seems to be there
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virtual image
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are composed of alternating layers of a high and low refractive index film deposited on a substrate
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dielectric mirrors
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forms virtual image have exact focus using telescopes backyard satellite dishes
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parabolic mirrors
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silvered surface of the mirror on the inner side of the curve
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concave spherical mirror
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silver surface of the mirror on the outer side of the car
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convex spherical mirror
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real upside down further from mirror than object
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concave mirrors between the center of curvature and the focal point
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virtual rightside up farther from mirror than object
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concave mirror between the surface and the focal point
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virtual rightside up closer to the mirror then the object
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convex mirrors
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main part of the mirror surface is flatbbut it curves away towards the outer edge
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a spherical mirrors
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solid glass objects that are ground and polished into geometrical and optically shapes
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prisms
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three purposes of prisms serves
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dispersive element a beam splitter and a polarizing device
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what is a convenient geometry illustrate dispersion in the use of the angle of minimum deviation provides a good way to measure the index of refraction of a material
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a refracting prism
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prisms are typically characterized by their
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angle of minimum deviation
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what type of prisms are constant deviation 90 degrees dispersing prisms
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pellin broca prisms PBP
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use in applications that require separate the incident light into its component Wavelengths
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dispersion prisms
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dispersion prisms are ideal for
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spectroscopy or laser tuning
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used for erecting or otherwise changing the orientation of an image to make use of total internal reflection inside of refraction
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reflecting prisms
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myopia also known as
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nearsightedness
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occurs if the eyeball is too long or the cornea the clear front cover of I has too much curvature
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nearsightedness
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to regain clear vision from nearsightedness
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i glasses contact lenses oethokeratolgy, laser or other refractive surgery procedures, vision therapy for persons with stress-related nearsightedness
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hyperopia medically termed for
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farsightedness
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eyeball is too short or the cornea has two little curvature
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farsightedness
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vision condition that causes blurred vision do either to irregular shape of the cornea the clear front cover of the eye or sometimes the curvature of the lens inside the eye
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astigmatism
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an irregular shaped cornea or lens prevents light from focusing properly on the
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retina
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a magnifying glass is a
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biconvex lens
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magnification number is less than one refers to a
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reduction in size sometimes called minication or demagnification
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was designed to provide greater magnification
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compound microscope
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gathers and focuses light mainly from the visible part of the electromagnetic spectrum to create a magnified image for direct view or to make a photo graph or to collect data through electronic image sensors
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optical telescope
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lens focuses light onto the focal plane
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refracting telescope
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concave mirror focuses light onto the focal plane almost all modern telescopes are
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reflecting telescopes
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used flat diagonal secondary mirror to deflect light outside of tube
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Newtonian
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used convex secondary mirror to reflect light back through hole in primary
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cassegrain
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a technique used to analyze an optical system made of two or more lenses
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image relay
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