A reading device provided to obtain information specifying a product, the device including a housing, an imaging unit, and an illumination unit. The housing includes a transparent reading window. The imaging unit is built in the housing and captures an image through the reading window. The illumination unit illuminates an imaging target of the imaging unit by performing surface emission of light toward the outside of the housing. The illumination unit is disposed outside an edge of the reading window and is inclined with respect to the reading window so as to protrude more with respect to the reading window toward a side farther from the reading window.

A method for an imaging module can include rotating an imaging assembly that includes an imaging device about a first pivot point of a bracket to a select first orientation, fastening the imaging assembly to the bracket at the first orientation, rotating a mirror assembly that includes a mirror about a second pivot point of the bracket to a select second orientation, and fastening the mirror assembly to the bracket at the second orientation. An adjustable, selectively oriented imaging assembly of a first imaging module can acquire images using an adjustable, selectively oriented mirror assembly of a second imaging module.

An imaging engine including a telephoto lens for compact long range barcode readers is disclosed herein. An example imaging engine includes an imaging sensor and a telephoto lens assembly. The example telephoto lens assembly includes a first lens, disposed along an optical axis; a second lens, disposed along the optical axis to correct for pupil aberrations of the image projected after a fourth lens onto the imaging sensor; a third lens, disposed along the optical axis to correct for chromatic aberration of the image projected after the fourth lens onto the imaging sensor; and the fourth lens, disposed along the optical axis to correct for optical field curvature of the image projected after the fourth lens onto the imaging sensor.

A reader system for reading information on at least one identification tag associated with a syringe connected to a fluid injector has a detector and a background screen spaced apart from the detector such that at least one of the at least one identification tags is positioned in an optical path between the detector and the background screen when the syringe is connected to the fluid injector. The reader system further has an illumination system configured for illuminating at least a portion of the background screen. The detector is configured for detecting and decoding the at least one identification tag. Methods for reading information on at least one identification tag associated with a syringe are also described.

Barcode readers and methods for directing fields-of-view of imaging sensors of barcode readers are disclosed herein. An example barcode reader includes a housing, an imaging sensor positioned within the housing, and a transflective mirror positioned within the housing and in a path of a field-of-view of the imaging sensor. The transflective mirror reflects at least a first portion of the field-of-view of the imaging sensor in a first direction with the transflective mirror in a reflective state and allows the field-of-view of the imaging sensor to pass through and continue in a second direction, different than the first direction, with the transflective mirror in a transmissive state.

A bioptic barcode reader has a housing having a lower housing portion with an upper surface and an upper housing portion extending above the lower housing portion. A generally horizontal window is positioned at the upper surface, a generally upright window is positioned in the upper housing portion, and an imaging assembly having a primary field-of-view and a set of optical components are positioned within the interior region. The housing has a width greater than or equal to 5 inches and less than or equal to 7 inches, the lower housing portion has a height greater than or equal to 3 inches, the upper housing portion has a height greater than or equal to 4 inches and less than or equal to 6 inches, and the upper surface has a length greater than or equal to 6 inches and less than or equal to 8 inches.

Barcode readers with transflective mirrors are disclosed herein. An example barcode reader includes a housing and a window positioned within the housing, an imaging sensor and second imaging sensor positioned within the housing, and a transflective mirror positioned within the housing and in a path of a field-of-view of the imaging sensor. The field-of-view of the imaging sensor passes through the transflective mirror and out the window with the transflective mirror in a transmissive state and the field-of-view of the second imaging sensor is reflected off of the transflective mirror and out the window with the transflective mirror in a reflective state.

Barcode readers and methods for directing fields-of-view of imaging sensors of barcode readers are disclosed herein. An example barcode reader includes a housing, an imaging sensor positioned within the housing, and a transflective mirror positioned within the housing and in a path of a field-of-view of the imaging sensor. The transflective mirror reflects at least a first portion of the field-of-view of the imaging sensor in a first direction with the transflective mirror in a reflective state and allows the field-of-view of the imaging sensor to pass through and continue in a second direction, different than the first direction, with the transflective mirror in a transmissive state.

A system and methods for providing aiming guidance for an imaging system. The system includes an illumination field source configured to provide illumination along a illumination optical axis to (i) illuminate a target and (ii) indicate a near field of view of the imaging system and a far field aiming source configured to provide a radiation pattern along an aiming optical axis to indicate a far field of view of the imaging system. Near field optics are configured to receive the first illumination from the near field illumination source and to form the first illumination to provide illumination to, and indicate to a user or machine vision system, the near field of view of the imaging system, and far field optics are configured to receive radiation from the aiming source and provide the radiation pattern to the far field to indicate the far field of view of the imaging system.

Multiple focus ball bearing actuator calibration is disclosed herein. An example method includes focusing, using a ball bearing actuator, a lens to a first focus position to image a first target; recording, in a lookup table, a first distance and a first actuator code corresponding with the first focus position; focusing the lens to a second focus position to image a second target; recording, in the lookup table, a second distance and a second actuator code corresponding with the second focus position; calculating a plurality of focus positions for a plurality of distances over a total working range of the barcode reader using the first focus position and the second focus position, wherein the calculating is performed without a temperature correction factor; and recording, in the lookup table, the plurality of distances and a plurality of actuator codes corresponding to the plurality of focus positions.