simple microscope
Học thuậtThân thiện
Definition
Noun: A simple microscope is a type of optical instrument that uses a single convex lens to magnify an object, producing an enlarged image for observation. It is the most basic form of microscope.
Usage
The term simple microscope is used specifically in scientific and historical contexts to describe a magnifying device with a single lens, distinguishing it from compound microscopes which use multiple lenses. - It is a countable noun (e.g., a simple microscope, simple microscopes).
Examples
Advanced Usage
- Historical Context: The term often appears in discussions about the history of science and technology, referencing early observational tools.
- Technical Specification: In optics, a simple microscope is analyzed for its magnifying power, which is determined by the focal length of its single lens.
Variants and Related Words
- Magnifying glass: A common handheld optical device that is a type of simple microscope. The example from the reference context, "the magnifying glass was invented by Roger Bacon in 1250," illustrates this relationship.
- Hand lens: Another synonym for a magnifying glass, typically used in fields like geology or botany.
- Loupe: A small, often handheld simple microscope used by jewelers, watchmakers, and philatelists.
Synonyms
- Single-lens microscope
- Magnifier (general term for any magnifying device)
Antonyms
- Compound microscope: A microscope that uses two or more sets of lenses to achieve higher magnification.
Noun
- light microscope consisting of a single convex lens that is used to produce an enlarged image
- the magnifying glass was invented by Roger Bacon in 1250