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US 2019/0170734 A1Published application
Compact Illuminator, Imaging and Systems and the Use of the Same
AssigneeEssenlix Corporation
InventorsStephen Y. Chou, Wei Ding, Ji Qi
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Abstract
Among other things, the present invention is related to devices and methods for imaging a liquid sample between two plates.
Claims20
A device for illuminating and imaging an object, comprising:
- (a) an imager having a lens;
- and
- (b) a passive illuminator;
- and
- (c) an adaptor housing that has an exit aperture for positioning an imager
- wherein the passive illuminator is on the adaptor;
- and
- wherein the adaptor housing is configured to reduce ambient light outside the adaptor housing entering inside adaptor housing.
5 more elements
A method for illuminating and imaging a liquid sample between two parallel plates in an assay device, the method comprising the steps of:
- (a) impinging light into one or two light-guides each connecting to one end of the passive illuminator;
- (b) causing the impinging light to travel through each light-guide to reach the corresponding end of the passive illuminator;
- (c) causing light to be emitted from a side wall of the passive illuminator after the impinging light enters the corresponding end of the passive illuminator;
- (d) generating illumination light from the light emitted from the side wall of the passive illuminator;
- (e) illuminating the liquid sample through one of the parallel plates with the illumination light;
- and
- (f) imaging the liquid sample with an imaging sensor through a lens.
4 more elements
An apparatus for using with a smartphone to read an assay device having two parallel plates, the smartphone having a camera and a light source, the apparatus comprising:
- (a) one or two light-guides each having an end thereof aligned with the entrance aperture of an optics chamber to cause light entering such end of the light-guide to travel through the light-guide to reach a corresponding end of the passive illuminator;
- and
- (b) a passive illuminator for illuminating a liquid sample between the two parallel plates in the assay device by generating diffusive light sideways from areas surrounding an optical axis of a lens in the camera of the smartphone,
- wherein the passive illuminator has a first end optically coupled to a second end of the light-guide to cause light received at the first end of each light-guide to travel through the light-guide to enter the first end of the passive illuminator.
1 more element
Dependencies are inferred from the claim text.