Visible light blocking lens assembly and electronic device including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsDongwoo Kim, Changhan Kim
Life of this patent
Estimating the term…
Abstract
A disclosed lens assembly may include at least four lenses sequentially arranged along an optical axis from a subject to an image sensor. Among the at least four lenses, a first lens disposed closest to the subject may have a visible light transmittance ranging from 0% to 5%, and, among subject-side surfaces and image-sensor-side surfaces of remaining lenses other than the first lens, at least four surfaces may include an inflection point. The lens assembly or an electronic device including the lens assembly may be variously implemented according to embodiments.
Claims20
A lens assembly comprising:
- at least four lenses sequentially arranged along an optical axis from a subject to an image sensor,
- wherein a first lens disposed closest to the subject among the at least four lenses has a visible light transmittance ranging from 0% to 5% such that the first lens is configured to block visible light and to prevent the lens assembly from being visually recognized by a user when the lens assembly is mounted in an electronic device,
- wherein the first lens, a second lens, and a third lens among the at least four lenses disposed sequentially from the subject have positive refractive power, and a fourth lens among the at least four lenses disposed closest to the image sensor has negative refractive power, and
- wherein, other than a subject-side surface of the first lens, every surface of the at least four lenses include an inflection point.
An electronic device comprising:
- a first camera including a lens assembly, and configured to acquire first information on a subject based on light incident through the lens assembly;
- at least one second camera configured to acquire second information on the subject different from the first information;
- and
- a processor or an image signal processor,
- wherein the lens assembly includes at least four lenses sequentially arranged along an optical axis from the subject to an image sensor,
- wherein a first lens disposed closest to the subject among the at least four lenses has a visible light transmittance ranging from 0% to 5% such that the first lens is configured to block visible light and to prevent the lens assembly from being visually recognized by a user when the lens assembly is mounted in the electronic device,
- wherein the first lens, a second lens, and a third lens among the at least four lenses disposed sequentially from the subject have positive refractive power, and a fourth lens among the at least four lenses disposed closest to the image sensor has negative refractive power,
- wherein, other than a subject-side surface of the first lens, every surface of the at least four lenses include an inflection point, and
- wherein the processor or the image signal processor is configured to perform user authentication based on the first information.
Dependencies are inferred from the claim text.