Image sensor assembly for optical reader
DCFirst Claim
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1. A method for constructing an optical assembly for use in an optical reader having a receive optical axis, comprising the steps of:
- providing a support frame having a rear housing supporting a solid state imager;
disposing a first light unit and a second light unit on the support frame on either side of the receive optical axis;
providing a first field stop optically forward of the first light unit and a second field stop optically forward of the second light unit; and
providing a single piece optical element having a center aperture centered on the receive optical axis of the optical reader on said support frame so that the single piece optical element is disposed optically forward of the first field stop and the second field stop.
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Abstract
There is described an optical assembly. In one aspect, the optical assembly can be used in an optical reader. In another aspect, the optical assembly can include a support for supporting various components.
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Citations
28 Claims
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1. A method for constructing an optical assembly for use in an optical reader having a receive optical axis, comprising the steps of:
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providing a support frame having a rear housing supporting a solid state imager; disposing a first light unit and a second light unit on the support frame on either side of the receive optical axis; providing a first field stop optically forward of the first light unit and a second field stop optically forward of the second light unit; and providing a single piece optical element having a center aperture centered on the receive optical axis of the optical reader on said support frame so that the single piece optical element is disposed optically forward of the first field stop and the second field stop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of constructing an optical assembly for use in an optical reader comprising the steps of:
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providing a support frame; disposing a plurality of clips on said support frame; inserting a plurality of lamps into said plurality of clips, the plurality of lamps including a first lamp and a second lamp; disposing a first field stop optically forward of the first lamp and disposing a second field stop optically forward of the second lamp; and disposing an optical element defining a center aperture centered on a receive optical axis of the optical reader on said support frame so that the optical element is disposed optically forward of the first field stop and the second field stop. - View Dependent Claims (13, 14, 15)
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16. A method of assembling an illumination package for an optical reader including the steps of:
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providing a support having a forward receiving surface; positioning a forwardly projecting light source on said support; adjustably positioning a lens on said forward receiving surface such that said light source passes there through and is focused at a point in space; adjusting the position of said lens on said forward receiving surface so that said light source is focused on a desired point in space; and then securing said lens to said forward receiving surface.
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17. An optical assembly for use in a reader, the optical assembly comprising:
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a support frame; a solid state imager; imaging optics supported by said support frame and defining an optical axis, the imaging optics for focusing a target image upon the solid state imager; a first light source; a second light source; wherein there is defined by the optical assembly a first horizontally extending field stop aperture, wherein there is further defined by the optical assembly a second horizontally extending field stop aperture, wherein the first horizontally extending field stop is positioned in front of the first light source, and wherein the second horizontally extending field stop is positioned in front of the second light source; a single optical element supported by the support frame and being of elongated shape, the single optical element having a first outer end and a second outer end, the single optical element being disposed so that light from the first light source and from the second light source is transmitted through the single optical element; wherein the single optical element has an opening, the single optical element being disposed so that an image of a target can pass optically undisturbed through the opening; and wherein the single optical element includes a surface extending in perpendicular alignment with the optical axis. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification