Light guided pixel configured for emissions detection and comprising a guide layer with a wavelength selective filter material and a light detector layer

Patent metadata

Field	Value
Publication number	US-9343494-B2
Application number	US-201213411103-A
Country	US
Kind code	B2
Filing date	Mar 2, 2012
Priority date	Mar 3, 2011
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

A light guided pixel having a guide layer and a light detector layer. The guide layer has a light guide. The light detector layer has a light detecting element that receives light channeled by the light guide. The light guide may include a filter for channeling emissions to the light detecting element.

First claim

What is claimed is:

1. A light guided pixel configured for emissions detection, comprising:
a guide layer comprising a light guide through an opaque or reflective material layer, the light guide comprising first and second opposing ends, wherein the first end is configured to receive incident light from outside the guide layer; and
a light detector layer comprising a light detecting element proximal the second end of the light guide, the light detecting element configured to detect light emissions,
wherein the detected light emissions received at the first end of the light guide from outside the guide layer are channeled to the second end and to the light detecting element, and
wherein the light guide comprises a wavelength selective filter material for absorbing excitation light and passing light emissions based on wavelength selective properties of the wavelength selective filter material, wherein the absorbed excitation light and the passed light emissions are received from outside the first end of the light guide.

2. The light guided pixel configured for emissions detection of claim 1 , wherein the light guide comprises
a light transmissive region through the opaque or reflective material layer of the guide layer and
a reflective wall,
wherein the light transmissive region comprises the wavelength selective filter material.

3. The light guided pixel configured for emissions detection of claim 1 , further comprising a transparent layer between the guide layer and the light detector layer.

4. A light guided pixel device configured for emissions imaging, comprising:
a guide layer comprising a plurality of light guides through an opaque or reflective material, each light guide comprising first and second opposing ends, wherein each first end is configured to receive incident light from outside the guide layer, wherein the guide layer further comprises an inter-pixel separation of the opaque or reflective material between adjacent light guides of the plurality of light guides; and
a light detector layer comprising a plurality of light detecting elements, each light detecting element configured to detect light emissions received from outside the guide layer at the first end of at least one light guide of the plurality of light guides,
wherein the detected light emissions are channeled from each first end to each second end of the at least one light guide and to the light detecting element, and
wherein one or more of the light guides comprises a wavelength selective filter material for absorbing excitation light and passing light emissions based on wavelength selective properties of the wavelength selective filter material, wherein the absorbed excitation light and the passed light emissions are received from outside the first end of each of the one or more light guides.

5. The light guided pixel device configured for emissions imaging of claim 4 , wherein each of the light guides comprises
a light transmissive region through the opaque or reflective material layer of the guide layer and
a reflective wall,
wherein the light transmissive region comprises the wavelength selective filter material.

6. The light guided pixel device configured for emissions imaging of claim 4 , further comprising a transparent layer between the guide layer and the light detector layer.

7. The light guided pixel device configured for emissions imaging of claim 4 , further comprising a processor configured to generate an emissions image of a specimen located between an illumination source and the guide layer, wherein the emissions image is associated with light emissions detected by the plurality of light detecting elements.

8. The light guided pixel device configured for emissions imaging of claim 4 ,
wherein the light detector layer further comprises a processor configured to generate an emissions image of a specimen provided between an illumination source and the guide layer, and
wherein the emissions image is associated with light emissions detected by the plurality of light detecting elements.

9. The light guided pixel device configured for emissions imaging of claim 4 , wherein the plurality of light detecting elements are arranged in a two-dimensional array.

10. The light guided pixel device configured for emissions imaging of claim 4 , further comprising a processor configured to generate a sequence of sub-pixel shifted projection images of a specimen located between a scanning illumination source and the guide layer, the sequence of sub-pixel shifted projection images corresponding to a plurality of scanning locations of the illumination source, the processor further configured to generate a sub-pixel resolution image of the specimen based on the sequence of sub-pixel shifted projection images.

11. The light guided pixel device configured for emissions imaging of claim 4 ,
wherein the light detector layer further comprises a processor configured to generate a sequence of sub-pixel shifted projection images of a specimen located between a scanning illumination source and the guide layer, the sequence of sub-pixel shifted projection images corresponding to a plurality of scanning locations of the illumination source,
wherein the processor is further configured to generate a sub-pixel resolution image of the specimen based on the sequence of sub-pixel shifted projection images.

12. A light guided pixel system configured for emissions imaging comprising:
a light guided pixel device comprising
a guide layer comprising a plurality of light guides through an opaque or reflective material, each light guide comprising first and second opposing ends, wherein each first end is configured to receive incident light from outside the guide layer, wherein the guide layer further comprises an inter-pixel separation of the opaque or reflective material between adjacent light guides of the plurality of light guides; and
a light detector layer comprising a plurality of light detecting elements, each light detecting element configured to detect light emissions received from outside the guide layer at the first end of at least one light guide of the plurality of light guides, wherein the detected light emissions are channeled from each first end to each second end of the at least one light guide and to the light detecting element, wherein the light transmissive region comprises a wavelength selective filter material for absorbing excitation light and passing emissions based on wavelength selective properties of the wavelength selective filter material, wherein the absorbed excitation light and the passed light emissions are received from outside the first end of the light guide; and

a processor in communication with the plurality of light detecting elements, the processor configured to generate one or more projection emissions images of a specimen located between an illumination source and the guide layer, the one or more projection emissions images based on data received from the plurality of light detecting elements and associated with the light emissions detected by the plurality of light detecting elements.

13. The light guided pixel system configured for emissions imaging of claim 12 , wherein each light guide comprises
a light transmissive region through the opaque or reflective material layer of the guide layer and
a reflective wall,
wherein the light transmissive region comprises the wavelength selective filter material.

14. The light guided pixel system configured for emissions imaging of claim 12 , further comprising a transparent layer between the guide layer and the light detector layer.

15. The light guided pixel syste

Assignees

• Lee Seung Ah
• Zheng Guoan
• Judkewitz Benjamin
• Pang Shuo
• Wu Jigang
• Yang Changhuei
• California Inst Of Techn

Inventors

• Lee Seung Ah
• Zheng Guoan
• Judkewitz Benjamin
• Pang Shuo
• Wu Jigang
• Yang Changhuei

Classifications

• H10F39/8053

  Colour filters · CPC title

• H10F39/8067 Primary

  Reflectors · CPC title

• H01L27/14621

  Electricity · mapped topic

• H01L27/14629 Primary

  Electricity · mapped topic

• G02B6/10 Primary

  of the optical waveguide type (G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00) · CPC title