Optical imaging system
First Claim
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1. An optical imaging system, comprising:
- a first lens comprising a positive refractive power;
a second lens comprising a negative refractive power and a convex object-side surface along an optical axis;
a third lens comprising a negative refractive power;
a fourth lens comprising a negative refractive power; and
a fifth lens comprising a positive refractive power,wherein the first to fifth lenses are sequentially disposed from an object side to an imaging plane, andwherein one or more lenses among the first to fifth lenses are formed using a glass material.
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Abstract
An optical imaging system includes a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive refractive power. The first to fifth lenses are sequentially disposed from an object side to an imaging plane. One or more lenses among the first to fifth lenses are formed using a glass material.
13 Citations
20 Claims
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1. An optical imaging system, comprising:
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a first lens comprising a positive refractive power; a second lens comprising a negative refractive power and a convex object-side surface along an optical axis; a third lens comprising a negative refractive power; a fourth lens comprising a negative refractive power; and a fifth lens comprising a positive refractive power, wherein the first to fifth lenses are sequentially disposed from an object side to an imaging plane, and wherein one or more lenses among the first to fifth lenses are formed using a glass material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical imaging system, comprising:
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a first lens comprising positive refractive power, a second lens comprising a convex object-side surface along an optical axis, a third lens, a fourth lens comprising a concave image-side surface, and a fifth lens, sequentially disposed from an object side to an imaging plane, wherein one or more lenses among the first to fifth lenses are formed using a glass material, and wherein the optical imaging system has a total number of five lenses with refractive power. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An optical imaging system, comprising:
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a first lens, a second lens comprising a convex object-side surface along an optical axis, a third lens, a fourth lens, and a fifth lens, wherein the first to fifth lenses are sequentially disposed from an object side to an imaging plane, wherein at least one of the first to fifth lenses are aspheric and formed using a glass material, wherein the first lens comprises a greatest Abbe number in the optical imaging system, and wherein the third lens comprises a greatest refractive index in the optical imaging system. - View Dependent Claims (18, 19, 20)
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Specification