by PA Howarth · 1986 · Cited by 187 — Abstract. The human eye suffers from longitudinal chromatic aberration, and this has been thought to average approximately 1.75 D between 420 and 660 nm. In ...

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The meaning of FRESNEL MIRRORS is two plane mirrors hinged so that there is no gap between the edges and so that the two planes make an angle with each ...

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Why is an inhaler always together with an AEROCHAMBER* spacer? Use of a spacer is a simple and effective way to help improve the use of your inhaler. Spacers ...

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The real optic glass lens is wrapped with a metal band which can be dismantled by unscrewing the threads where the metal band meets. This magnifying glass ...

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The fundamental mode approximates the so-called Gaussian beam. The Gaussian beam has a radial intensity distribution with a Gaussian profile.

The stage is where you will place your slide. The stage has an opening that will allow the light from the condenser to pass onto you specimen. It is through the ...

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Microscope calculations are a range of formulas used for digital microscopy applications to calculate the depth of field in microscope, field.