Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorHo Sik Yoo
Life of this patent
Estimating the term…
Abstract
An optical imaging system includes: a plurality of lenses disposed along an optical axis; and a reflection member closer to an object than the plurality of lenses, and including a reflection surface configured to change a path of light; wherein the plurality of lenses are spaced apart from each other by preset distances along the optical axis; and the condition 0.9<DF/DC<1.3 is satisfied, where DF is an effective aperture radius of an image-side surface of a lens closest to an image sensor among the plurality of lenses, and DC is an effective aperture radius of an object-side surface of a lens closest to the reflection member among the plurality of lenses.
Claims20
An optical imaging system comprising:
- a plurality of lenses disposed along an optical axis, the plurality of lenses comprising a first lens having positive refractive power, a second lens having negative refractive power, a third lens having negative refractive power, a fourth lens and a fifth lens, the first, second, third, fourth, and fifth lenses being sequentially disposed in numerical order beginning with the first lens from an object side toward an image side such that the fifth lens is a lens disposed most adjacent to an imaging plane;
- and
- a reflection member disposed closer to an object than the plurality of lenses, and comprising a reflection surface configured to change a path of light;
- wherein the plurality of lenses are spaced apart from each other along the optical axis;
- and
- wherein the condition 1.3<TTL/BFL<3.5 is satisfied, where TTL is a distance from the object-side surface of the first lens to the imaging plane, and BFL is a distance from the image-side surface of the fifth lens to the imaging plane.
An optical imaging system comprising:
- a plurality of lenses disposed along an optical axis, the plurality of lenses comprising a first lens having positive refractive power, a second lens having negative refractive power, a third lens, a fourth lens, a fifth lens and a sixth lens, the first, second, third, fourth, fifth, and sixth lenses being sequentially disposed in numerical order beginning with the first lens from an object side toward an image side;
- and
- a reflection member disposed closer to an object than the plurality of lenses, and comprising a reflection surface configured to change a path of light;
- wherein the plurality of lenses are spaced apart from each other along the optical axis;
- and
- wherein the condition 0.9<DF/DC<1.3 is satisfied, where DF is an effective aperture radius of an image-side surface of the sixth lens, and DC is an effective aperture radius of an object-side surface of the first lens.
Dependencies are inferred from the claim text.