Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

A barcode reading device (1, 1a, 1b, 1c, 1d) includes a polygon housing (10, 10a, 10b) and a plurality of barcode reading units (32, 34, 34_1, 34_2); a first window (12) is formed on one surface of the polygon housing (10, 10a, 10b) and a second window (14) is formed of another surface thereof; the barcode reading units (32, 34, 34_1, 34_2) are housed within an accommodating space of the polygon housing (10, 10a, 10b). One of the barcode reading units (32, 34, 34_1, 34_2) reads barcode through the second window (14), and the other barcode reading units (32, 34, 34_1, 34_2) read barcode through the first window (12).

Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.

A barcode reading device (1, 1a, 1b, 1c, 1d) includes a polygon housing (10, 10a, 10b) and a plurality of barcode reading units (32, 34, 34_1, 34_2); a first window (12) is formed on one surface of the polygon housing (10, 10a, 10b) and a second window (14) is formed of another surface thereof; the barcode reading units (32, 34, 34_1, 34_2) are housed within an accommodating space of the polygon housing (10, 10a, 10b). One of the barcode reading units (32, 34, 34_1, 34_2) reads barcode through the second window (14), and the other barcode reading units (32, 34, 34_1, 34_2) read barcode through the first window (12).