Download scientific diagram | Comparison of reflected intensity of p- and s-polarised beams from a smooth (a) or fibrous material (b). a While a relatively ...

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For the former, you can simply use multiple mirrors. You can use normal flat mirrors (for example, by having a bunch of pairs of mirrors that all reflect incident sunlight toward a specific point), but focusing light is easier if you also have convex mirrors (with focal points of one or more meters).

2020414 — A zoom lens is a type of camera lens that offers the photographer a useful range of different focal lengths in a single lens.

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by R Al Salamah · 2014 — In this thesis, the Group Velocity Dispersion (GVD) of air has been measured by using a femtosecond frequency comb at 1.5 µm. By comparing the spectra from ...

I won't give you a design, because there are a literally infinite number that'd work well, and because you'd need a diagram to implement it (and I'm terrible at diagrams). But this is the general principle.

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UV filters are also known as UV blocking filters or skylight filters. On an analog camera, the filter served to filter out the ultraviolet part of the sunlight, ...

Does not seem to need a life hack — A "life hack" is a seemingly intractable problem that can be solved by thinking outside the box. Unfortunately, everyday "How to…" questions about learning a craft or new skill are outside the scope of this site. See about Lifehacks. If the author can show how this needs an "outside the box" solution, edit and 'flag' to reopen.

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Oct 19, 2024 — Navigating the Microscopic World: The Role of the Mechanical Stage · Stage clips: These clips hold the specimen securely in place, preventing it ...

The stereo- or dissecting microscope is an optical microscope variant designed for observation with low magnification (2 - 100x) using incident light illumination (light reflected off the surface of the sample is observed by the user), although it can also be combined with transmitted light in some instruments. It uses two separate optical paths with two objectives and two eyepieces to provide slightly different viewing angles to the left and right eyes. In this way it allows a three-dimensional visualization of the sample.

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Compound microscopes usually include exchangeable objective lenses with different magnifications (e.g 4x, 10x, 40x and 60x), mounted on a turret, to adjust the magnification. These microscopes also include a condenser lens and iris diaphragm, which are important for regulating how light hits the sample.

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Great working distance and depth of field are important qualities for this type of microscope, allowing large specimens such as small animals, plants and organs to be viewed with most parts in focus at the same time. In addition to the ocular and objective lens, stereomicroscopes typically contain:

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A compound microscope is a microscope that uses multiple lenses to enlarge the image of a sample. Typically, a compound microscope is used for viewing samples at high magnification (40 - 1000x), which is achieved by the combined effect of two sets of lenses: the ocular lens (in the eyepiece) and the objective lenses (close to the sample).

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The stereomicroscope should not be confused with a binocular compound microscope, which has double eyepieces. The image in such a binocular compound microscope is no different from that obtained with a single monocular eyepiece.

Oct 2, 2022 — Yaw refers to the camera's rotation on a vertical axis, turning the camera left and right. It is something that many people don't think about ...

Light is passed through the sample (called transmitted light illumination). Larger objects need to be sliced to allow this to happen efficiently.

It's getting on to Summer time and with that comes the Sun. I wanted to make a lens or perhaps an array of lenses to focus the Sun's radiation in to one smaller concentrated point which could almost instantly com bust wood. Thanks!