multiple lenses

What A Light Microscope That Has Two Or More Lenses Is Called?

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What A Light Microscope That Has Two Or More Lenses Is Called? A compound microscope is a microscope that uses multiple lenses to enlarge the image of a sample. … The total magnification is calculated by multiplying the magnification of the ocular lens by the magnification of the objective lens. Light is passed through the

Which American Politician Journalist And Scientist Invented Bifocal Lenses?

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Which American Politician Journalist And Scientist Invented Bifocal Lenses? The American scientist Benjamin Franklin, who was shortsighted and also needed help with his near vision, invented bifocals. Up until the beginning of the 20th century two separate lenses were cut in half and combined together in the rim of the frame, and this type of