In optical engineering, an objective is an optical element that gathers light from an object being observed and focuses the light rays from it to produce...

independently of a mind. Objective (optics), an element in a camera or microscope The Objective, a 2008 science fiction horror film Objective pronoun, a personal...

Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments...

In optics, any optical instrument or system – a microscope, telescope, or camera – has a principal limit to its resolution due to the physics of diffraction...

concerned with the design and application of optical fibers is known as fiber optics. The term was coined by Indian-American physicist Narinder Singh Kapany...

the illumination is introduced on the specimen side opposite of the objective optics which requires imaging of the evanescent field region through the bulk...

Orchestrated objective reduction (Orch OR) is a theory postulating that consciousness originates at the quantum level inside neurons (rather than being...

optical waveguides can be described using the concepts of geometrical or ray optics, as illustrated in the diagram. Light passing into a medium with higher...

producing the Petzval objective lens. From 1839, the year, when the invention of photography was being published, came objective optics and from 1840 complete...

between different areas of optics. Numerical aperture is commonly used in microscopy to describe the acceptance cone of an objective (and hence its light-gathering...

In optics, a diaphragm is a thin opaque structure with an opening (aperture) at its center. The role of the diaphragm is to stop the passage of light,...

electrons in electron microscopy, neutron radiation, and synchrotron radiation optics. Condensers are located above the light source and under the sample in an...

Dioptrics is the branch of optics dealing with refraction, especially by lenses. In contrast, the branch dealing with mirrors is known as catoptrics. Telescopes...

the aperture stop in the optics that follow it. In a telescope or compound microscope, this image is the image of the objective element(s) as produced by...

thereby making it a major determinant of image resolution. It is used in optics applied to light waves, in antenna theory applied to radio waves, and in...

configuration is the use of measurement optics in the reference arm, which essentially duplicate the objective measurement optics in the measurement arm. The advantage...

geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term τα ὀπτικά meaning 'appearance, look'. Optics was significantly...

frequency. Sometimes the term chromatic dispersion is used to refer to optics specifically, as opposed to wave propagation in general. A medium having...

behind a window, or industrial subjects may be a hazard to the objective. Such optics resemble telescopes with close-focus capabilities. Measuring microscopes...

the combination, leaving the effective focal length for purposes of photographic composition unchanged. Barlow lens Convertible lens Objective (optics)...

perfect alignment. Bushnell introduced the AR Optics 1-4 scope in 2018. It has a 30mm tube and has an objective lens diameter of 24mm. It has caliber-specific...

Folded optics is an optical system in which the beam is bent in a way to make the optical path much longer than the size of the system. This allows the...

Development's Office of Foreign Disaster Assistance OG: Objective Glass, see Objective (optics) Obstetrics and gynaecology Offensive Guard, see Guard (American...

Nightforce Optics is an American manufacturer of high-end telescopic sights, spotting scopes and mounting accessories, based in Lavonia, Georgia with factory...

optics companies (Töpfer, Voigtländerkorrigie, Zeiss) produced the Petzval objective lens until the 1940s. Petzval's largest contributions to optics are...

been explored. Most early binoculars used Galilean optics; that is, they used a convex objective and a concave eyepiece lens. The Galilean design has...

optics. The winners were officially announced by the Army in early 2022: SIG Sauer to produce the XM7 rifle and XM250 automatic rifle, Vortex Optics to...

of a water immersion objective with resolution equal to those of Emil Hartnack's. A first step in the rational production of optics was a modernization...

Photographic Optics. Oxford, UK: Focal Press. ISBN 0-240-51540-4. US Grant US2500046 A, Willy Schade, "Petzval-type photographic objective", published...

In optics, aberration is a property of optical systems, such as lenses and mirrors, that causes the image created by the optical system to not be a faithful...