Analyte system and method for determining hemoglobin parameters in whole blood
A light-emitting module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The light-emitting module includes an LED light source capable of emitting light wherein the light is directed thereby defining an optical path and a plurality of optical components. The plurality of optical components includes a collimating lens, a first optical diffuser, a circular polarizer, and a focusing lens wherein the plurality of optical components is disposed within the optical path of the light from the LED light source.
1. A light-emitting module integrated with a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters with absorbance spectroscopy, the light-emitting module comprising:
an LED light source capable of emitting light wherein the light is directed thereby defining an optical path; and
a plurality of optical components comprising:
a collimating lens;
a first optical diffuser;
a circular polarizer; and
a focusing lens;
wherein the plurality of optical components are sequentially disposed within the optical path of the light from the LED light source upstream of a sample module of the system.
2. The light-emitting module of claim 1 further comprising a protective window disposed downstream of the plurality of optical components.
3. The light-emitting module of claim 1 wherein the circular polarizer is downstream from the first optical diffuser.
4. The light-emitting module of claim 1 wherein the focusing lens is downstream from the circular polarizer.
5. The light-emitting module of claim 1 further includes a light-emitting module substrate that contains an electrical circuit and a light-emitting optics assembly.
6. The light-emitting module of claim 5 wherein the light-emitting optics assembly has an optics assembly housing with an optics assembly end wherein the optics assembly housing supports the plurality of optical components.
7. A light-emitting module capable of installing in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters with absorbance spectroscopy, the system having: a calibrating-light module, a spectrometer module, and an optical sample module containing a whole-blood sample; the light-emitting module comprising:
an LED light source capable of emitting light wherein the light is directed thereby defining an optical path; and
a plurality of optical components comprising:
a collimating lens;
a first optical diffuser;
a circular polarizer; and
a focusing lens;
wherein the plurality of optical components is disposed within the optical path of the light from the LED light source of the light-emitting module;
wherein the collimating lens is upstream of the circular polarizer within the optical path;
wherein the optical sample module containing the whole-blood sample is distinct from the light-emitting module; and
whereby the light is directed to and transmitted through the optical sample module containing the whole-blood sample, the light being received by the calibrating-light module disposed within the optical path between the optical sample module and the spectrometer module.