A blue laser has a shorter wavelength than the red laser, and the ability to store and read two to four times the amount of data.

... parabolic dish reflector. My setup involves using a dish antenna as a ... Mirror films are made specifically for solar thermal concentrator use.

We created the unique FREE lens focal length calculator that has a database of camera models and shows correct angles and DORI zones with 3D graphics:

Hyperfocal distancecalculator

Sep 12, 2018 — So if an image exactly shows a 2 meter wide object at 1 meter distance, then the field of view is 2 meter (and the angle of view is 90°). Angle ...

Cloud networking is a type of IT infrastructure in which the cloud hosts some or all of an organization's networking resources.

As a result of pumping, an electromagnetic field appears inside the laser cavity at the natural (resonant) frequency of the atoms of the material that fills the cavity. The waves reflect back and forth between the mirrors. The length of the cavity is such that the reflected and re-reflected wave fronts reinforce each other in phase at the natural frequency of the cavity substance. Electromagnetic waves at this resonant frequency emerge from the end of the cavity having the partially-reflective mirror. The output may appear as a continuous beam, or as a series of brief, intense pulses.

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Lens calculator

Qualitative data is descriptive information that focuses on concepts and characteristics, rather than numbers and statistics.

Speech recognition, or speech-to-text, is the ability of a machine or program to identify words spoken aloud and convert them ...

In the earlier days,  rotating lens focal length calculators made out of paper were good and simple tools for quick calculation of the field of view. As well as the formula above. But you should not use this formula for modern wide angle cameras!

The diameter of the laser spot in practice usually ranges between a few hundred micrometres and 6–10 mm. For example, when using various diameters of laser spot ...

When rays of light pass through a convex lens (the shape of lens shown in figure above) they tend to converge at a single point at some distance ahead of the lens. This distance between the lens and the point where they focus is known as the focal length as specified by the symbol f in the figure. In case of a CCTV camera, the lens focuses the rays at a point where the sensor is placed. The combination of the focal length of the lens and the size of the sensor determine the field of view of the CCTV camera. The shorter the focal length, the wider the field of view, and vice versa.

Equivalentfocallengthcalculator

Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a size ratio called optical ...

Gaussian beamcalculator

Lasers are one of the most significant inventions developed during the20th century. They have found a tremendous variety of uses in electronics, computer hardware, medicine, and experimental science.

Employee self-service (ESS) is a widely used human resources technology that enables employees to perform many job-related ...

We also offer much more sophisticated CAD software for CCTV design, like our IP Video System Design Tool, that has a built-in database of more than 9000 camera models.

Focallength estimation

Endpoint detection and response (EDR) is a system that gathers and analyzes security threat-related information from computer ...

The ruby laser, a simple and common type, has a rod-shaped cavity made of a mixture of solid aluminum oxide and chromium. The output is in pulses that last approximately 500 microseconds each. Pumping is done by means of a helical flash tube wrapped around the rod. The output is in the red visible range.

FOV tofocallength

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Lens Focal Length = (Distance) * 3.2 mm / HorizontalWidth where 3.2 mm is the horizontal size of 1/4″ CCTV sensor (4.8 mm for 1/3″ sensor).

A learning management system (LMS) is a software application or web-based technology used to plan, implement and assess a ...

A laser is a coherent and focused beam of photons; coherent, in this context, means that it is all one wavelength, unlike ordinary light which showers on us in many wavelengths.

Basics, you want one with a wattage over 35watts, but under 100watts. Over 100 watts they tend to cure too hot and fast, causing warping, ...

Diversity, equity and inclusion is a term used to describe policies and programs that promote the representation and ...

In a basic laser, a chamber called a cavity is designed to internally reflect infrared (IR), visible-light, or ultraviolet (UV) waves so they reinforce each other. The cavity can contain gases, liquids, or solids. The choice of cavity material determines the wavelength of the output. At each end of the cavity, there is a mirror. One mirror is totally reflective, allowing none of the energy to pass through; the other mirror is partially reflective, allowing approximately 5 percent of the energy to pass through. Energy is introduced into the cavity from an external source; this is called pumping.

A project management office (PMO) is a group, agency or department that defines and maintains the standards of project management...

The helium-neon laser is another popular type, favored by electronics hobbyists because of its moderate cost. As its name implies, it has a cavity filled with helium and neon gases. The output of the device is bright crimson. Other gases can be used instead of helium and neon, producing beams of different wavelengths. Argon produces a laser with blue visible output. A mixture of nitrogen, carbon dioxide, and helium produces IR output.

The acronym laser stands for "light amplification by stimulated emission of radiation." Lasers work as a result of resonant effects. The output of a laser is a coherent electromagnetic field. In a coherent beam of electromagnetic energy, all the waves have the same frequency and phase.

Rather, the setting is a function of the transparency of the specimen, the degree of contrast you desire and the particular objective lens in use. Coarse ...

A contact center infrastructure (CCI) is a framework composed of the physical and virtual resources that a contact or call center...

Camera FOVcalculator

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The standard formula above doesn’t work for such lenses. You need to have a database of camera models with horizontal and vertical angles provided by camera manufacturers.

In general, a framework is a real or conceptual structure intended to serve as a support or guide for the building of something that expands the structure into something useful. See More.

Feb 9, 2023 — Fiber optics is a technology that uses optical fibers to transmit data as light signals, delivering high bandwidth, electromagnetic immunity, ...

A MAC address (media access control address) is a 12-digit hexadecimal number assigned to each device connected to the network.

Focallength to angle of viewcalculator

Apr 17, 2021 — Heavy rare earths are often harder to source. They include metals like dysprosium and terbium, which play a critical role in defense, technology ...

Apart from the lens focal length calculator function this software has 3D engine for automatic design and visualization of all elements of video surveillance systems.

Traditional calculators cannot calculate focal length for modern wide video surveillance cameras. Modern security cameras with short lenses (2.1 – 2.8mm) have non-standard wide angles. For example 115 degrees.

A chief experience officer (CXO) is an executive in the C-suite who ensures positive interactions with an organization's ...

A whaling attack, also known as 'whaling phishing' or a 'whaling phishing attack,' is a specific type of phishing attack that ...