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where τλ is transmittance. In spectroscopy, optical density is the measure of absorbance, and is defined as the ratio of the intensity of light falling upon ...

Oct 1, 2024 — 1. What is methane? Methane is a gas often used as fuel for heating and cooking. It is also used to produce chemicals, such as plastics and ...

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The type of lens used greatly impacts the performance of a VR headset. Pancake lenses are much more compact than Fresnel lenses and have better ...

Diffraction can occur in shallow or deep water and is separate from refraction since it is not a result of a change in ocean depth. However, both refraction and ...

Camera resolution is a measure that indicates how many details camera can capture with one shot. For average monitor with resolution of Full HD: ...

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Zeissobjective finder

Quantum Cascade Lasers (QCLs) are semiconductor lasers that emit in the IR spectrum.

4 DG HSM is a large-aperture standard lens that delivers top performance. Its outstanding resolution makes it ideal for the high-megapixel era. It delivers ...

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Laser classes · emit visible light at higher levels than Class 1 · 2M lasers can be hazardous if you view the beam directly with a magnifying device or look at it ...

However, like the Victory SF line, it is hand made in Germany by a small team of skilled European technicians. It is a qualitative step up for many birders ...

You must be very careful when using the high power lenses so you do not jam them into the slide. Ocular Lens - The ocular lens, or eyepiece, magnifies the image ...