| numerical aperture |
a measure of the acceptance angle of a lens. Higher numerical aperture means the lens gather more diffraction orders yielding higher resolution but at the expense of depth of focus.
출처: www.icknowledge.com/glossary/n.html
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| numerical aperture |
(fiber optic) The light gathering ability of a fiber, defined as the sine of half the angle that contains 90% of the optical power that is captured by the fiber.
출처: connectors.tycoelectronics.com/glossary/glossary-n...
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| numerical aperture |
The characteristic of a fiber optic strand which defines its acceptance of impinging light. The degree of openness, light gathering ability, and angular acceptance are other terms describing this characteristic.
출처: www.nuhorizons.com/Glossary/Optoelectronics.html
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| numerical aperture |
A unitless measure of the ability of a lens to gather and focus light. NA = n sin q, where q is the angle of the light as it narrows to the focal point. A numerical aperture of 1 implies no change in parallel light beams. The higher the number, the greater the focusing power and the smaller the spot. Printer-Friendly Format
출처: www.dvd-makers.com/public/473.cfm
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| numerical aperture |
A ratio that describes the cone of light emitted by the condenser or accepted by the objective lens. Objectives with a larger NA have greater resolving power. (a 100x oil lens with a 1.25 NA can resolve smaller objects than a 100x lens with a 0.95 NA)
출처: www.bi-optic.com/vocab.html
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