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US 11,684,267 B2Granted
Lens, light source device with lens, and apparatus for estimating concentration of analyte
AssigneeSamsung Electronics Co., Ltd.
InventorDong Ho Kim
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AssigneeSamsung Electronics Co., Ltd.
InventorDong Ho Kim
Estimating the term…
Provide is a lens which outputs light, emitted by a plurality of light sources, with uniform light distribution. The lens includes a lens body having a first surface which is flat and has an incident hole formed therein, and a second surface which is convex and opposite the first surface; and a plurality of incident surfaces which are recessed from the incident hole toward the second surface, each of the plurality of incident surfaces corresponding to a light source of the plurality of light.
A lens configured to output light, emitted by a plurality of light sources, with uniform light distribution, the lens comprising:
A light source device comprising:
A light source device comprising:
An apparatus for estimating a concentration of an analyte, the apparatus comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Using light, e.g. diagnosis by transillumination, diascopy, fluorescence: by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy,…
The light source comprising a LED: in the form of an LED array
Measuring blood flow: using optical means, e.g. infrared light
Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g.…: for…
About 14 years 5 months of term left · ends 4 Apr 2041 (estimated)
This application claims priority from Korean Patent Application No. 10-2019-0112546, filed on Sep. 11, 2019, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.
Example embodiments of the disclosure relate to technology for outputting light, emitted from a plurality of light sources, with uniform light distribution.
Diabetes is a chronic disease that causes various complications and is difficult to cure, such that people with diabetes are advised to check their blood glucose regularly to prevent complications. In particular, when insulin is administered to control blood glucose, the blood glucose level must be closely monitored to avoid hypoglycemia and control insulin dosage. An invasive method of finger pricking is generally used to measure the blood glucose level. However, while the invasive method may provide high reliability in measurement, it may cause pain and inconvenience as well as an increased risk of infection due to the injection. Recently, research has been conducted on a method of non-invasively measuring blood glucose accurately by using a spectrometer without blood sampling.
The above and/or other aspects, features, and advantages of certain example embodiments will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a diagram explaining an optical path length when light is emitted at different distances from a photodetector;
FIG. 2 is an example diagram illustrating an arrangement of a plurality of light sources according to an example embodiment;
Hereinafter, example embodiments will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present disclosure.
Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals will be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience.
Process steps described herein may be performed differently from a specified order, unless a specified order is clearly stated in the context of the disclosure. That is, each step may be performed in a specified order, at substantially the same time, or in a reverse order.