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The simplest compound microscope is constructed from two convex lenses as shown schematically in Figure 2. The first lens is called the objective lens, and has ...

With up to 90 degrees of Portrait Landscape rotation, no matter where you are the TV can be right in front of you. These mounts are designed to offer the most ...

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A frequent way of referring to colour on computer screens is by using the RGB system. In this model, each colour is given a value for each red, green and blues components ranging from 0 to 255, giving a total value of 16.7 million possible colours. However, due to the very complex way in which the eye perceives colours, we can see colours which are outside of the gamut of the RGB scheme - there is no unique mapping that definitively converts a wavelength to a colour, and as such the above tool should been seen as more of an approximation than a rigorous resource.

Optical microscopy is a technique employed to closely view a sample through the magnification of a lens with visible light. This is the traditional form of ...

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This demo was utilised in the paper Teaching Beer’s Law and Absorption Spectrophotometry with a Smart Phone: A Substantially Simplified Protocol by Thomas S. Kuntzleman and Erik C. Jacobson.

Laser power meters are extensively used in laser-equipped laboratories to measure laser powers and observe the continuous wave (CW laser).

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Mar 24, 2022 — The lens equation says 1/f = 1/Do + 1/Di, where f is the focal length of the lens, Do is the distance from the object to the lens and Di is the ...

Sunlight appears white to us because it emits almost uniformly over all visible frequencies. However, a laser for example, emits only at a single very specific frequency. Helium-neon lasers emit at 632.8nm, which is a bright red. The lasers in your Blu-ray player emit at 405nm, which as the name suggests, is blue. We can begin to build up a picture of how frequency is related to colour.

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The Baader 1.25 Amici 45° Erecting Prism provides an erect, non-inverted image for astronomical and terrestrial observing, offering a wide field of view in ...

Compare lens specifications of any number of lenses for digital SLR (DSLR) and Mirrorless cameras.

Dec 21, 2021 — A shallow DoF means more narrow range will be acceptably sharp in the image. Shallow DoF is good to use when you want to isolate your ...

Low Profile Image Correction Prisms for Newts and refractors straight though. 1.25" Prism. This is an extremely compact image correction prism that inserts into ...

See more, without being seen yourself. Lightforce infrared, or IR LED lighting is developed using the same technology that is used in commercial ...

Over the course of millions of years, the human eye has evolved to detect light in the range 380—780nm, a portion of the electromagnetic spectrum known as visible light, which we perceive as colour. The particular range of wavelengths coincides with a window in the Earth's atmosphere, through which this light can travel. Higher frequency radiation, such as x-rays are absorbed by the atmosphere, as are lower frequencies, such as microwaves.