object lens

American  

noun

Optics.

1. objective.

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Etymology

Origin of object lens

First recorded in 1825–35

Example Sentences

See Examples For:

object lens

These have been overcome, one after another, until it is now felt that the best modern telescope, with an object lens of twenty-six inches, has fully reached the limit of optical power.

From Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work by Henry White Warren

She hardly observed that a tear descended slowly upon his cheek, a tear so large that it magnified the pores of the skin over which it rolled, like the object lens of a microscope.

From Tess of the d'Urbervilles by Thomas Hardy

The field of the great object lens was already suffused with the radiance of her approach.

From At a Winter's Fire by Bernard Edward Joseph Capes

This is true of the Lick telescope, which has a magnifying power of 2,500 and an object lens a yard across.

From Lost on the Moon Or, in Quest of the Field of Diamonds by Roy Rockwood

Diameter of object lens 1-3/4 in., of ocular lens 1-1/8 in.

From Early American Scientific Instruments and Their Makers by Silvio A. Bedini