Four lens telescope or magnifier optic system and its telescope or magnifier

The utility model relates to an optical system which is composed of a set of four lenses, and the optical system is composed of a convergent lens (n< 1 >), an emission lens (n< 2 >), a convergent lens (n< 3 >) and an emission lens (n< 4 >) in turn. The utility model adopts di...

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Bibliographic Details
Main Authors LU WANG, FOXING WANG, JING WANG
Format Patent
LanguageEnglish
Published 14.06.2000
Edition7
Subjects
CONTACT LENSES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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Summary:The utility model relates to an optical system which is composed of a set of four lenses, and the optical system is composed of a convergent lens (n< 1 >), an emission lens (n< 2 >), a convergent lens (n< 3 >) and an emission lens (n< 4 >) in turn. The utility model adopts different glass material (n), curvature radiuses (r), lens thickness (d) and lens interspace (D) to design the optical system of a telescope or a magnifier with different multiplying power and short optical tube length. When matched with corresponding machinery parts, the utility model can form a binocular vision telescope or magnifier.
Bibliography:Application Number: CN1998226712U