Loosely applied to any spotlight lens which condenses diverging rays into a beam, but more correctly to the short focus combination of two or more lenses in a jacket used for illuminating a slide or effect disc. Also used in some profile lanterns and followspots to produce a smoother light (especially for gobo work).
A lens mounted in or below the stage whose purpose is to focus or condense the light onto the specimen. Condenser lenses are not used on low-power (stereo) microscopes.
A positive lens of short focal length, usually used to direct light into a projector lens or the optical system of an instrument.
Part of the illumination system between the gun and the specimen, the condenser lens is designed to concentrate the electron beam into a finely focused spot on the specimen (or, in the case of the scanning electron microscope, into the objective lens).
a lens or mirror used to concentrate light.
Used to collect and redirect light for the purpose of illumination. Often used to collect light from a small source and project it evenly onto an object.
A lens mounted in or below the stage. The purpose of the condenser lens is to focus or condense the light onto the specimen. The higher power objective lenses have very tiny diameters and require concentrated light to work properly. By using a condenser lens you will increase both the illumination and resolution. Condenser lenses are not required on low power microscopes.
