Extended hemispherical lens information

The extended hemispherical lens is a commonly used lens for millimeter-wave electromagnetic radiation. Such lenses are typically fabricated from dielectric...

equations. An extended hemispherical lens is a special type of plano-convex lens, in which the lens's curved surface is a full hemisphere and the lens is much...

A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image.: 145  Fisheye...

the catadioptric Fresnel lens for the front hemisphere, but replaced the rear hemispherical reflector with a hemispherical array of annular prisms, each...

Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over...

A gravitational lens is matter, such as a cluster of galaxies or a point particle, that bends light from a distant source as it travels toward an observer...

offering unique capabilities. Single-lens reflex (SLR) cameras provide real-time, exact imaging through the lens. Large-format and medium-format cameras...

the diagonal; it does not provide a complete hemispherical view, and is not suitable for hemispherical photography. "Canon Fisheye EF 15mm f/2.8 discontinued"...

century led to an array of lens designs intended for photography. The problems of photographic lens design, creating a lens for a task that would cover...

a type of lens, but using this lens type does not necessarily make an image a panorama. An image made with an ultra wide-angle fisheye lens covering the...

determining practical photographic exposure, a hemispherical sensor has proven more effective. With a hemispherical sensor, typical values for C are between...

lens, while a coronal section of its central part presents a somewhat triangular outline. It is shorter than the caudate nucleus and does not extend as...

wide flood or "spill" of light. Because LEDs emit most light in a hemisphere, lens lights with the LED facing forward or reflector lights with it facing...

optical transmission of pure silica extends well into the ultraviolet and infrared wavelengths, so is used to make lenses and other optics for these wavelengths...

Manufactured items including pressure vessels and most curved mirrors and lenses are based on spheres. Spheres roll smoothly in any direction, so most balls...

article can be "semi-protected" or "extended confirmed protected", meaning that only "autoconfirmed" or "extended confirmed" editors can modify it. A...

camera lens caps not releasing. The Venera 9 lander operated for at least 53 minutes and took pictures with one of two cameras; the other lens cap did...

Systems (POLES) Anterior and posterior poles, surface vertices of the eye's lens Fetal pole, a thickening on the margin of the yolk sac of a fetus during...

library, lecture hall, classrooms, laboratories, offices, and three hemispherical domed telescope enclosures. Two were reserved for research; one for...

contouring. Some fisheye lenses use a stereographic projection to capture a wide-angle view. Compared to more traditional fisheye lenses which use an equal-area...

and extreme wide angle lenses to obtain an almost hemispherical image. The field of view is tilted, as is the projection hemisphere, so one may view a portion...

with the eye remaining a weak point. The lower shell is covered with hemispherical protrusions. In the BBC-licensed The Dalek Book (1964), and again in...

The Northern Extended Millimeter Array (NOEMA) is one of the largest astronomical facilities on European ground and the most powerful radio telescope in...

solution of potassium hydroxide. Initially, the locules of the spores have a lens shape but soon become rounded. Fissurina dumasti is similar in appearance...

is operated by Malin Space Science Systems. It has a 180-degree fisheye lens with the seven color filters bonded directly on a single CCD sensor. MARCI...