USER DEVICE INCORPORATING MULTI-SENSING SENSOR DEVICE
A device may include a sensor window. The sensor window may include a substrate. The sensor window may include a set of layers disposed onto the substrate. The set of layers may include a first subset of layers of a first refractive index and a second set of layers of a second refractive index different from the first refractive index. The set of layers may be associated with a threshold transmissivity in a sensing spectral range, and may be configured to a particular color in a visible spectral range and associated with a threshold opacity in the visible spectral range. The device may include a spectral sensor device aligned to the sensor window and including at least one sensor element to receive light in the sensing spectral range and provide a plurality of sensing functionalities based on at least one measurement of the light in the sensing spectral range.
1 . A device, comprising:
a single sensor device configured to perform a plurality of sensing functionalities; and
a sensor window configured to align to the single sensor device,
the sensor window comprising a set of layers associated with a threshold transmissivity in a sensing spectral range, configured to a particular color in a visible spectral range, and associated with a threshold opacity in the visible spectral range, and
the single sensor device comprising at least one sensor element configured to provide at least one of the plurality of sensing functionalities.
2 . The device of claim 1 , wherein the device is at least one of:
a user device,
a mobile phone,
a computer,
a gaming device,
a wearable communication device,
a smart wristwatch, or
a pair of smart eyeglasses.
3 . The device of claim 1 , wherein the plurality of sensing functionalities includes a first type of functionality and a second type of functionality that is different from the first type of functionality.
4 . The device of claim 3 ,
wherein the first type of functionality is a biometric authentication functionality, and
wherein the second type of functionality is a health parameter monitoring functionality.
5 . The device of claim 1 ,
wherein the plurality of sensing functionalities includes a subcutaneous identification of a tissue structure, and
wherein the subcutaneous identification is associated with a penetration depth of at least 3 microns.
6 . The device of claim 1 , wherein the threshold transmissivity is greater than approximately 80% in the sensing spectral range.
7 . The device of claim 1 , wherein the sensing spectral range is from approximately 600 nanometers to approximately 1100 nanometers.
8 . The device of claim 1 , wherein the threshold opacity is greater than 80% in the visible spectral range.
9 . The device of claim 1 , wherein the set of layers includes at least one of:
a germanium layer,
a silicon-germanium layer,
a hydrogenated silicon layer,
a hydrogenated germanium layer,
a hydrogenated silicon-germanium layer
a silicon layer,
a silicon dioxide (SiO 2 ) layer,
an aluminum oxide (Al 2 O 3 ) layer,
a titanium dioxide (TiO 2 ) layer,
a niobium pentoxide (Nb 2 O 5 ) layer,
a tantalum pentoxide (Ta 2 O 5 ) layer,
a magnesium fluoride (MgF 2 ) layer, or
a niobium titanium oxide (NbTiO) layer.
10 . The device of claim 1 , wherein the set of layers includes a first subset of layers of a first refractive index and a second set of layers of a second refractive index different from the first refractive index.
11 . The device of claim 10 ,
wherein the first refractive index is greater than approximately 3.5, and
wherein the second refractive index is less than approximately 2.0.
12 . The device of claim 1 , wherein the sensor window further comprises a substrate that includes chemically strengthened glass.
13 . The device of claim 1 , wherein the sensor window further comprises at least one of:
a hydrophobic layer,
an oleophobic layer,
a protective layer,
an anti-reflectance layer, or
an out of band blocker layer.
14 . A system, comprising:
a sensor window configured to align to a sensor,
the sensor window being associated with a threshold opacity in a visible spectral range and configured to a particular color in the visible spectral range, and
the sensor window being associated with a threshold transmissivity in a sensing spectral range.
15 . The system of claim 14 ,
wherein the system comprises the sensor,
wherein the sensor comprises a plurality of sensor elements that are configured to perform a first type of functionality and a second type of functionality, and
wherein the first type of functionality comprises a surface measurement of a surface of an object.
16 . The system of claim 15 , wherein the second type of functionality comprises a subsurface measurement of a characteristic beneath the surface of the object.
17 . A system, comprising:
means for performing a plurality of sensing functionalities; and
means for aligning to the means for performing the plurality of sensing functionalities, providing a threshold transmissivity in a sensing spectral range, providing a particular color in a visible spectral range, and providing a threshold opacity in the visible spectral range.
18 . The system of claim 17 , further comprising:
means for providing information identifying a plurality of characteristics of an object,
wherein the plurality of characteristics include at least two of:
a biometric authentication,
a heart rate determination,
a liveness detection determination,
a blood pressure determination, or
a blood oxygenation determination.
19 . The system of claim 17 , wherein the system is configured to be disposed behind a display of a user device.
20 . The system of claim 17 , wherein the means for performing the plurality of sensing functionalities comprises:
means for performing a first characteristic determination based on a first subset of a plurality of wavelengths and a second characteristic determination based on a second subset of the plurality of wavelengths,
wherein the first subset of the plurality of wavelengths and the second subset of the plurality of wavelengths include one common wavelength.