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US 11,635,594 B2Granted
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJin Hwa Jung, Yong Joo Jo
Life of this patent
Estimating the term…
Abstract
An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, sequentially disposed from an object side to an imaging plane. The optical imaging system satisfies the expression BFL/f<0.15, where BFL represents a distance from an image-side surface of the eighth lens to an imaging plane of an image sensor and f represents an overall focal length of the optical imaging system.
Claims16
An optical imaging system comprising:
- a first lens comprising a positive refractive power, a second lens comprising a negative refractive power, a third lens comprising a refractive power, a fourth lens comprising a positive refractive power, a fifth lens comprising a negative refractive power, a sixth lens comprising a refractive power and a concave object-side surface along an optical axis, a seventh lens comprising a negative refractive power, and an eighth lens comprising a positive refractive power sequentially disposed from an object side to an imaging plane,
- wherein 0.7<TTL/f<1.0, where TTL represents a distance from an object-side surface of the first lens to an imaging plane, and f represents an overall focal length of the optical imaging system.
Dependencies are inferred from the claim text.