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In physics, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, for a constant force aligned with the direction of motion, the work equals the product of the force strength and the distance traveled.
Field of view is the area of the inspection captured on the camera’s imager. The size of the field of view and the size of the camera’s imager directly affect the image resolution (one determining factor in accuracy). Working distance is the distance between the back of the lens and the target object.
Increasing the magnification and the numerical aperture of the objective reduces the working distance, i.e. the distance between front lens and specimen. Numerical aperture versus f-number Numerical aperture of a thin lens. Numerical aperture is not typically used in photography.
Working distance. The working distance (sometimes abbreviated WD) is the distance between the sample and the objective. As magnification increases, working distances generally shrinks. When space is needed, special long working distance objectives can be used. Immersion lenses
The distance from the objective lens to the surface (called the working distance) is typically comparable to that of a conventional optical microscope. It varies with the system optical design, but working distances from hundreds of micrometres to several millimeters are typical.
NFC's maximum working distance of less than 20 cm reduces the likelihood of unwanted interception, making it particularly suitable for crowded areas that complicate correlating a signal with its transmitting physical device (and by extension, its user).
Hence, a power corresponding to the working distance is subtracted from the gross retinoscopy value to give the patient's refractive condition, the working distance lens being one which has a focal length of the examiner's distance from the patient (e.g. +1.50 dioptre lens for a 67 cm working distance).
Some standard lenses are 2×, which decreases the working distance by half and doubles the magnification, 0.75× (3/4×), which increases the working distance by 4/3× (1.33×) and decreases the magnification by 0.75×, and a 0.5× Barlow doubles the working distance and halves the magnification.
In business, power distance can be defined as the acceptance (by employees) of the relationship between the highest and lowest ranked members in an organization. [31] Studies have suggested that employees in low power distance workplaces directly impact the distribution of office power.
In physics, action at a distance is the concept that an object's motion can be affected by another object without being in physical contact with it; that is, the non-local interaction of objects that are separated in space. Coulomb's law and Newton's law of universal gravitation are based on action at a distance.