Fresnel lenses resemble a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and not spherical. Search by Specification | Learn More

Optical lens assemblies are composed of a number of lenses mounted for a particular imaging function. These can include objectives, collimators, gauging lenses, etc. Learn More

...television systems can record events and trigger alarms. Closed circuit TV is different from broadcast television in that all of CCTV's components are linked through cables or other direct means. In a CCTV system, live or prerecorded signals are sent... Learn More

Lens holders are used to stabilize and maintain the position of all the optical components of a lens assembly. Learn More

Antennas are structures or devices used to collect or radiate electromagnetic waves. Search by Specification | Learn More

Magnifiers are inspection instruments that are used to magnify a product or part detail via a lens system. Search by Specification | Learn More

...or diverge the transmitted rays from an object, thus forming a real or virtual image of that object. There are seven main spherical lens forms, or shapes, that determine the imaging characteristics of the lens. They are plano-convex, plano-concave... Search by Specification | Learn More

Gradient index (GRIN) lenses focus light through a precisely controlled radial variation of the lens material's index of refraction from the optical axis to the edge of the lens. Search by Specification | Learn More

Cylindrical lens have at least one surface that is formed in the shape of a cylinder. Cylindrical lenses are used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line Search by Specification | Learn More

Committee (NTSC) and Phase Alternating Line (PAL) display devices such as televisions. The role of a scan converter is to convert the faster scan rate of a source video signal to the slower scan rate that is compatible with TV technology. This basic... Learn More

...internal light sources, power sources and converters. Projectors include electronic devices that display video and computer-based images or presentations and transparency devices that use a light source and lens to project an image from a transparent... Learn More

Fresnel lenses resemble a planoconvex or planoconcave lens cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally conical and not spherical. Gradient index (GRIN) lenses focus light through a precisely... Search by Specification | Learn More

...of crown and flint glass, which have been corrected for chromatic aberration with respect to two selected wavelengths. Aspheres are lens elements in which the spherical surface of the lens is altered slightly in order to correct for spherical aberration... Search by Specification | Learn More

...of the light beam that enters the lens. C-mounts are adapters for video cameras. Typically, the user removes the camera lens and installs the C-mount, which connects to the microscope’s trinocular port. Unlike C-mounts, T-mounts are used with still... Learn More