Camera

• US 20020044781A1
• Filed: 05/08/2001
• Published: 04/18/2002
• Est. Priority Date: 10/13/2000
• Status: Active Grant

• Current Assignee: Applied Scintillation Technologies Ltd. (Levy Hill Group Ltd.)
• Original Assignee: Applied Scintillation Technologies Ltd. (Levy Hill Group Ltd.)
• Inventors: Mattos, John De, Tyrrell, Glenn, Creasey, Jonathan
• Granted Patent: US 7,075,576 B2
• Time in Patent Office: Days
• US Class Current: 396/661
• CPC Class Codes: H01L 27/14618 Containers
• CPC Class Codes: H01L 27/1462 Coatings
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H04N 5/33 Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20

Abstract

A camera comprises a charge-coupled device (CCD). The CCD has an anti-stokes phosphor bound to the light receiving surface thereof. A housing surrounds the CCD and defines a filtered aperture through which, in use, light can pass and be received by the phosphor CCD.

Claims

1. A camera comprising:

a charge-coupled device (CCD), the CCD having an anti-stokes phosphor bound to the light receiving surface thereof; and

a housing surrounding the CCD and defining an aperture through which, in use, light can pass and be received by the phosphor.

2. A camera according to claim 1, wherein the anti-stokes phosphor is sensitive to light in the wavelength range of 1500 nm to 1610 nm.

3. A camera according to claim 1, wherein the phosphor emits in the range of 950 nm to 1075 nm.

4. A camera according to claims 1, comprising at least one filter positioned between the aperture and the phosphor on the CCD.

5. A camera according to claim 1, wherein the phosphor comprises ErYb in a host phosphor matrix.

6. A camera according to claim 5, wherein the host phosphor matrix comprises one of Y₂O₂S, YF₃, NaYF₄ and La₂O₂S.

7. A camera according to claim 1, wherein the phosphor is bound to the CCD by an adhesive.