Optical imaging system comprising four lenses of ++++ refractive powers

An optical imaging system includes a first lens having positive refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having positive refractive power, and an F No. of the optical imaging system is equal to or less than 1.0...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kim, Hag Chul, Jo, Yong Joo
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An optical imaging system includes a first lens having positive refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having positive refractive power, and an F No. of the optical imaging system is equal to or less than 1.0. The optical imaging system is capable of achieving miniaturization while capturing an image at low illumination.