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...

Look up objective or objectivé in Wiktionary, the free dictionary. Objective may refer to: Objective (optics), an element in a camera or microscope The...

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...

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

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

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

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...

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...

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...