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Helium-Neon Laser Series ... The LASOS® Helium Neon lasertubes and modules have a robust mechanical design, excellent beam quality and long service life of up to ...

Jul 26, 2024 — As 1 inch is 2.54 cm, 1dpcm ≈ 2.54dpi . dppx. Represents the number of dots per px unit. Due to the 1:96 fixed ratio of CSS in ...

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Jan 2, 2019 — This book describes the cleaning, handling, and storage methods used by professional technicians to keep optics in top condition. It is written ...

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The outstanding ruggedness of germanium lenses can be attributed to the exceptional hardness of the germanium material itself, with a Knoop hardness rating of 780. Additionally, germanium possesses a high density, measured at 5.33 g/cm3, which necessitates considerations of weight when designing systems that are sensitive to weight parameters.

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Germanium lenses are a type of optical lenses that are crafted from polished germanium material. These lenses possess exceptional durability and resistance to corrosion, making them highly suitable for usage in challenging environments where harsh conditions prevail and constant exposure to the elements is expected.

Avantier, a reputable manufacturer, offers a diverse range of germanium lenses in various sizes and types. These lens options include spherical lenses, plano-concave lenses, p-convex lenses, concave-convex lenses, and aspheric lenses. Additionally, Avantier also provides the option for customized orders, allowing customers to specify their desired size, shape, and anti-reflection coating requirements.

Germanium lenses boast a remarkably high refractive index, surpassing that of other readily available infrared (IR) transmitters. Consequently, they exhibit minimal chromatic aberration owing to their low dispersion characteristics. These properties render germanium lenses exceptionally well-suited for utilization in infrared field applications such as forward-looking infrared (FLIR) and Fourier transform infrared (FTIR) systems. Moreover, they find applications in thermal imaging systems and precision analytic instruments that operate in challenging and demanding environments.

Sunglasses, cameras, binoculars, and telescopes are not safe for viewing solar eclipses. They do not provide the necessary protection against the Sun’s harmful rays. Only certified solar eclipse glasses, like Shade 14, offer the level of safety required to protect your eyes during the eclipse.

Nov 28, 2022 — For instance a 10x binocular used at a distance of 125 feet (1500 inches) that can see line pairs in Group-1, Element 2 has a value of 0.561 lpm ...

Looking directly at the Sun can lead to permanent eye damage. The Sun’s intense light, including its ultraviolet and visible radiation, can burn your retinas and cause vision problems. This is true even when the Sun is partially obscured by the Moon.

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Germanium demonstrates optimal transmission efficiency, exceeding 45%, within the wavelength range of 2-12 μm, which makes it particularly advantageous for the manipulation of mid-infrared light. Furthermore, by applying anti-reflective coatings, the transmission efficiency can be further enhanced to reach approximately 95%.

It is important to note that germanium is prone to a phenomenon known as thermal runaway. This means that as the temperature increases, the transmission capability of the lens diminishes, ultimately leading to opacity. Consequently, it is recommended to employ germanium lenses only in environments where temperatures remain below 100°C.

May 5, 2007 — collomation with artifical star - posted in Equipment (No astrophotography): Its raining, and i wont get to use my scope this weekend,so i ...

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Shade 14 glasses are the safest way to view a solar eclipse. Protect your eyesight during this spectacular event by using these specially designed glasses.

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The 16 and 32 element InGaAs arrays respond to infrared radiation from 700nm to 1.8µm. The photodiode arrays come mounted in a dual inline 40 pin package.

Shade 14 glasses provide the highest level of protection for viewing solar eclipses. They are designed to block harmful ultraviolet (UV) rays and intense visible light, ensuring your eyes are safe from potential damage. These glasses are essential because direct exposure to the Sun’s light, even during an eclipse, can cause serious eye injuries.

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Don’t wait until the last minute to buy eclipse glasses. Ensure you purchase from a reputable manufacturer known for producing high-quality protective eyewear. Avoid unproven glasses from unknown sources to protect your vision during this extraordinary event.

Metaphase Technologies provides high-quality, low cost, off-the-shelf and custom-made LED lighting systems for machine vision inspection.

Thus, this relationship is also applicable for convex mirrors. According to the derivation, the radius of curvature is equal to the toys of focal length in a ...

Most commonly its magnification is 10X, which means it magnifies an object ten times its actual size. The ocular lens of some microscopes have a pointer. They ...