Back to results
US 2019/0318140 A1Published application
Handheld symbol reader with optical element to redirect central illumination axis
AssigneeZebra Technologies Corporation
InventorsMark Drzymala, Edward Barkan, Igor Vinogradov
Life of this patent
Estimating the term…
Abstract
An apparatus and assembly for redirecting the central illumination axis of an illumination assembly towards the central field of view (FOV) axis of an imaging assembly using an optical element that provides an optical magnification of less than 1.5×, where the central illumination axis at the point of the illumination assembly is non-parallel to the central FOV axis.
Claims19
An apparatus comprising:
- a housing;
- an imaging assembly positioned within the housing and comprising an image sensor having a plurality of photosensitive elements forming a substantially flat two-dimensional surface, the image sensor having a field of view (FOV), the FOV having a central FOV axis, wherein the image sensor is configured to capture at least one of:
- light reflected from a target and light emitted from the target;
- an illumination assembly positioned within the housing and configured to emit light having a central illumination axis, wherein the central illumination axis at the point of the illumination assembly is non-parallel to the central FOV axis;
- and
- an optical element positioned within the housing and adapted to redirect the central illumination axis towards the central FOV axis at a surface, wherein the optical element provides an optical magnification of less than 1.5×,
- wherein the optical element is a prism positioned within the housing in front of the illumination assembly, and configured to redirect the central illumination axis such that the central illumination axis converges towards the central FOV axis as both axes extend away from the housing.
4 more elements
An assembly comprising:
- a housing having a scanning head and a handle, the scanning head having a proximal end and a distal end, and a central head axis extending from the proximal end to the distal end;
- an imaging assembly positioned within the scanning head, wherein the imaging assembly has a field of view (FOV) directed towards the proximal end, the FOV having a central FOV axis parallel in relation to the central head axis, the imaging assembly configured to capture at least one of:
- light reflected from a target and light emitted from a target;
- an illumination assembly positioned within the scanning head in front of the imaging assembly and facing the proximal end at an acute angle with respect to the central head axis, wherein the illumination assembly is configured to emit light having a central illumination axis, such that the central illumination axis at the point of the illumination assembly is non-parallel to the central FOV axis;
- and
- a prism positioned within the scanning head in front of the illumination assembly, and configured to redirect the central illumination axis such that the central illumination axis converges towards the central FOV axis as both axes extend away from the proximal end.
3 more elements
Dependencies are inferred from the claim text.