SCIENCE WEEK 5 - USES OF MIRROR AND LENSES IN OPTICAL DEVICES Flashcards
evolves from a latin word/term (camera obscura) meaning dark chamber
Camera
produces virtual, upright, and enlarge image of an object
Magnifying Glass
makes small objects bigger and is invented by father and son team of Hans and Zacharias Janssen in 1950
Compound Microscope
use to differentiate cellular structures and introduced by
Camillo Sebastian Nachet
Polarizing Microscope
used to study cellular compounds like proteins and nucleic acids
Ultraviolet Microscope
uses electron beam instead of ordinary light and to examine size, shape, and arrangement
Electron Microscope
makes distant object appear bigger
Telescope
first type of telescope and uses refract lens
Refracting Telescope
uses concave mirrors
Reflecting Telescope
general properties of telescopes
1) How well it collects light
2) How much it magnifies
used to gather light
Aperture
to enlarge image
Magnification
– two refracting telescope mounted side by side
– pair prism
– “zoom lens” essentially a telescope mounted on camera
Binocular Telescope