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US 8,262,566 B2Granted
Device and method for uniform in vivo illumination
AssigneeGiven Imaging Ltd.
InventorsZvika Gilad, Amit Pascal
Life of this patent
Estimating the term…
Abstract
An in vivo imaging device comprises a viewing window, an illumination unit, a lens holder and a light guide. The light guide may be positioned to create uniformly dispersed illumination and to eliminate backscatter from the viewing window. The light guide may guide light from the illumination unit to a desired position within the in vivo device. In one embodiment, the light guide may be embedded into the lens holder.
Claims12
A device for in vivo imaging comprising:
- a dome-shaped window;
- a substrate perpendicular to a device's optical axis;
- an illumination unit;
- a light guide;
- an image sensor installed on said substrate, said image sensor centered along the device's optical axis,
- wherein said illumination unit illuminates an object through said light guide and through said window and wherein said image sensor collects light reflected from the object through said window;
- a lens holder centered along the device's optical axis and having a first end that is adjacent to the apex of the window, said first end being closer to the apex of the window than the illumination unit and at least partially obscuring a field of illumination of said illumination unit;
- and
- wherein said light guide is to guide light from the illumination unit to a light source exit area at the same plane of the first end of the lens holder or at a plane closer to said apex of said window than said first end of the lens holder, said planes being parallel to the substrate plane.
6 more elements
A method for manufacture of an in vivo imaging capsule, the method comprising the steps of:
- installing on a substrate an imager and a light source behind a dome-shaped window, said substrate perpendicular to the imaging capsule's optical axis, and said light source;
- installing on the substrate a lens holder centered along the imaging capsule's optical axis and having a first end that is adjacent to the apex of the window, said first end being closer to the apex of the window than the light source and at least partially obscuring a field of illumination of said light source, and a light guide, said light guide to direct illumination from said light source to a light source exit area at the same plane of said first the end of the lens holder or at a plane closer to said apex of said window than said first end of the lens holder, said planes being parallel to the substrate;
- and
- encapsulating the substrate in a housing of the in vivo imaging capsule.
1 more element
Dependencies are inferred from the claim text.