Optical reader with improved lens focusing system
First Claim
1. An optical reader comprising:
- an image sensor array of pixels for converting light reflected from a target containing a machine readable indicia into output signals representative thereof;
a housing for holding the image sensor array;
a processor for decoding the output signals;
receive optics for directing light from the target to the image sensor, the optics having a focal point;
a generally cylindrical barrel for containing the receive optics, the barrel having a protrusion provided thereon;
a generally cylindrical sleeve for receiving the barrel, the sleeve being secured to the housing and having a ramped shoulder for engagement with the protrusion,wherein moving the protrusion along the shoulder facilitates focusing of the receive optics relative to the image sensor.
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Accused Products
Abstract
An optical reader comprising: an image sensor array of pixels for converting light reflected from a target containing a machine readable indicia into output signals representative thereof; a housing for holding the image sensor array; a processor for decoding the output signals; receive optics for directing light from the target to the image sensor, the optics having a focal point; a generally cylindrical barrel for containing the receive optics, the barrel having a protrusion provided thereon; a generally cylindrical sleeve for receiving the barrel, the sleeve being secured to the housing and having a shoulder for engagement with the protrusion, wherein moving the protrusion along the shoulder facilitates focusing of the receive optics relative to the image sensor.
27 Citations
14 Claims
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1. An optical reader comprising:
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an image sensor array of pixels for converting light reflected from a target containing a machine readable indicia into output signals representative thereof; a housing for holding the image sensor array; a processor for decoding the output signals; receive optics for directing light from the target to the image sensor, the optics having a focal point; a generally cylindrical barrel for containing the receive optics, the barrel having a protrusion provided thereon; a generally cylindrical sleeve for receiving the barrel, the sleeve being secured to the housing and having a ramped shoulder for engagement with the protrusion, wherein moving the protrusion along the shoulder facilitates focusing of the receive optics relative to the image sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of focusing an optical reader the optical reader comprising:
- an image sensor array of pixels for converting light reflected from a target containing a machine readable indicia into output signals representative thereof;
a housing for holding the image sensor array;
a processor for decoding the output signals;
receive optics for directing light from the target to the image sensor, the optics having a focal point;
a generally cylindrical barrel for containing the receive optics, the barrel having a protrusion provided thereon;
a generally cylindrical sleeve for receiving the barrel, the sleeve being secured to the housing and having a ramped shoulder for engagement with the protrusion, the method comprising the step of moving the protrusion along the shoulder to focus the receive optics relative to the image sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
- an image sensor array of pixels for converting light reflected from a target containing a machine readable indicia into output signals representative thereof;
Specification