Laser scanning indicia reading terminal having variable lens assembly

摘要

There is described a laser scanning indicia reading terminal comprising a variable setting imaging lens having a first setting at which the terminal has a first plane of optimum focus and a second setting at which the terminal has a second plane of optimum focus. According to one embodiment a first predetermined scanning width can be associated to the first lens setting and a second scanning width can be associated to the second lens setting such that the terminal with the lens setting set to the first setting scans to a first width and with the lens setting set to a second setting scans to a second width. In addition to or in place of the scan width operational parameters different operational parameters can be associated to the respective first and second lens settings.

主权项

1. An indicia reading terminal, comprising:
a light source for emitting light; a scanning apparatus for scanning the emitted light at a scan angle across a target; a detector assembly for detecting reflected light and generating a scan signal for each scan; a variable setting lens assembly having two or more lens settings for focusing the emitted light; wherein the terminal is configured to execute each scan according to operational parameters, the operational parameters comprising the lens setting, the scan angle, an energization level for the light source, an amplification gain for amplifying the scan signal, and a bandwidth for processing the scan signal; wherein the terminal is configured to execute one or more scans in accordance with a configuration selected from two or more configurations and a profile selected from two or more profiles; wherein each configuration designates the lens setting for each of the one or more scans; and wherein each profile determines the operational parameters for a given scan based on the lens setting designated by the configuration setting for the given scan.