Methods, compositions, diagnostics and assays for the treatment of alzheimer's disease
US-2017183388-A1 · Jun 29, 2017 · US
DMD based UV absorption detector for liquid chromatography
US10481139B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10481139-B2 |
| Application number | US-201615772109-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 3, 2016 |
| Priority date | Nov 3, 2015 |
| Publication date | Nov 19, 2019 |
| Grant date | Nov 19, 2019 |
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- Title
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Abstract
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A detector for use in liquid chromatography is provided. The detector includes a light delivery system comprising a light source that emits one or more spectral lines of light of a light spectrum. The detector has an entrance slit configured to receive the one or more spectral lines of light and a wavelength selection module comprising a digital micro-mirror device. The digital micro-mirror device is configured to redirect the one or more spectral lines of light to a flow cell. The flow cell is optically connected to the wavelength selection module.
First claim
Opening claim text (preview).
We claim: 1. A detector for liquid chromatography comprising: a light delivery system comprising a light source that emits light having a plurality of wavelengths; and a wavelength selection module optically coupled to the light delivery system, the wavelength selection module comprising: a digital micro-mirror device configurable as a variable slit and having a plurality of micro-mirrors each controllable to direct light along a first optical path to a beam dump or to direct light along a second optical path, wherein dimensions of the variable slit are determined by the micro-mirrors directing light along the second optical path; and a spectrally dispersive optical element to receive light and provide diffracted light having a linear dispersion of the wavelengths. 2. The detector of claim 1 wherein the digital micro-mirror device is configurable as a variable entrance slit and wherein the spectrally dispersive optical element receives the light from the digital micro-mirror device that is directed along the second optical path. 3. The detector of claim 2 further comprising a flow cell disposed along an optical path between defined between the light delivery system and the wavelength selection module. 4. The detector of claim 1 wherein the digital micro-mirror device is configurable as a variable exit slit, wherein the spectrally dispersive optical element receives the light emitted from the light delivery system and wherein the digital micro-mirror device receives the diffracted light from the spectrally dispersive optical element. 5. The detector of claim 4 further comprising a flow cell disposed to receive the diffracted light from the spectrally dispersive optical element.
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Classifications
using LEDs · CPC title
Optical detectors {(measurement of intensity, velocity, spectral content, polarisation, or phase of infrared, visible or ultraviolet light G01J)} · CPC title
using diffraction elements, e.g. grating (gratings per se G02B) · CPC title
Slit arrangements {slit adjustment} · CPC title
the reflecting element being moved or deformed by electrostatic means · CPC title
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- What does patent US10481139B2 cover?
- A detector for use in liquid chromatography is provided. The detector includes a light delivery system comprising a light source that emits one or more spectral lines of light of a light spectrum. The detector has an entrance slit configured to receive the one or more spectral lines of light and a wavelength selection module comprising a digital micro-mirror device. The digital micro-mirror dev…
- Who is the assignee on this patent?
- Waters Technologies Corp
- What technology area does this patent fall under?
- Primary CPC classification G01J1/429. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 19 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).