NOUN
- the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
How To Use objective lens In A Sentence
- The two numbers used in description of binoculars and spotting scopes identify magnification first and objective lens size second.
- An objective lens focuses the light onto a region approximately 1 mm in diameter and subsequently collects the light returning from the target.
- The scope comes with screw-on protective covers for both ends of the steel tube to protect the ocular and objective lens when not in use.
- The smaller diameter objective lens is less likely to reflect light.
- The stereo projector by polarized light include chiefly. the three parts: the objective lens system of the projection, the condensing system and a source of light.
- Binoculars are specified by both their magnification and objective lens diameter.
- Now the endoscope consists of a series of rod lens and objective lens, eyepiece lens and optical fibres for illumination.
- The variable power 18-36x eyepiece is protected with a screw-on dust cover while the objective lens features a snap-on dust cover.
- So this is very, very low-cost to buy, and actually, the objective lens in the microscope, the very powerful lens we use to image the atoms, is also from a CD player.
- The biaxial scanning mechanism and the simple objective lenses are the key features.