object lens

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Thân thiện
object lens

The student carefully adjusts the object lens of the microscope.

Definition
  1. Noun:
    • The optical component in an instrument that is closest to the object being observed: The "object lens" is the primary lens or lens assembly in a telescope or microscope that first receives light from the object. It is responsible for gathering light and forming the initial image.
Usage
  • The "object lens" is a technical term used primarily in the context of optical instruments like microscopes and telescopes. It is often synonymous with the term "objective" or "objective lens."
  • It is used to specify the part of the instrument that faces the specimen or celestial body.
Examples
  • Noun:
    • The quality of the object lens determines the resolution and clarity of the microscopic image.
    • Astronomers cleaned the telescope's large object lens to remove dust particles.
Advanced Usage
  • "To adjust the object lens": To change the focus or position of the primary lens to obtain a clear image.
    • You must carefully adjust the object lens to bring the specimen into sharp focus.
Variants and Related Words
  • Objective lens (n): A more common synonym for "object lens," referring to the same optical component.
    • The microscope's objective lens has a magnification of 40x.
  • Objective (n): A shortened form often used in technical contexts.
    • The telescope has a 10-inch objective.
Synonyms
  • Objective: The lens or mirror in an optical system that first collects light.
  • Front lens: A descriptive term indicating its position.
Related Phrases
  • Object lens assembly: The complete housing and mechanism containing the object lens.
    • The object lens assembly was carefully calibrated.
object lens

The student carefully adjusts the object lens of the microscope.

Noun
  1. the lens or system of lenses in a telescope or microscope that is nearest the object being viewed

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