object lens

How to use object lens in a sentence

• A low-power glass with large object lens to permit as much light as possible is a necessary condition for use at night.

  Visual Signaling | Signal Corps United States Army

• The optical part of the work was done by Merz, Alvan Clark having declined the responsibility of dividing the object lens.

  Scientific American Supplement, No. 623, December 10, 1887 | Various

• The face itself acts as a reflector projecting itself through the object lens in the center.

  Motion Picture Operation, Stage Electrics and Illusions | Henry C. Horstmann

• It is furnished with a double achromatic object-lens, about three inches aperture.

  Notes and Queries, Number 175, March 5, 1853 | Various

• It if furnished with a double achromatic object-lens, about three inches aperture.

  Notes and Queries, Number 176, March 12, 1853 | Various