Image sensor assembly for optical reader
First 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
26 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, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of constructing an optical assembly for use in an optical reader comprising the steps of:
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providing a frame; disposing a plurality of clips on said frame; inserting a plurality of lamps into said plurality of clips; disposing a field stop optically forward of each 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 (21, 22, 23, 24, 25)
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26. 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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Specification