Abstract: Systems and methods for observing a substrate, and laser operations thereon, are described. Dark field illumination is directed through a camera port of a laser beam delivery system and through laser beam delivery system optics of the laser beam delivery system onto the substrate. Simultaneously, a high dynamic range (HDR) camera system to observe light reflected from the substrate and transmitted through the laser beam delivery system optics of the laser beam delivery system to the camera port of the laser beam delivery system. The wavelengths of a pilot laser of the laser beam delivery system reaching the lensing system of the HDR camera system may be attenuated in intensity and may be confined to a peripheral, off-axis optical path.

Abstract: Systems and methods for observing a substrate, and laser operations thereon, are described. Dark field illumination is directed through a camera port of a laser beam delivery system and through laser beam delivery system optics of the laser beam delivery system onto the substrate. Simultaneously, a high dynamic range (HDR) camera system to observe light reflected from the substrate and transmitted through the laser beam delivery system optics of the laser beam delivery system to the camera port of the laser beam delivery system. The wavelengths of a pilot laser of the laser beam delivery system reaching the lensing system of the HDR camera system may be attenuated in intensity and may be confined to a peripheral, off-axis optical path.

Abstract: An optical reader comprises a housing, at least one light source inside the housing and an image sensor whose terminus is inside the housing. The housing has a longitudinal axis and a disc-receiving portion for receiving an optical disc so that the optical disc is coaxial with the longitudinal axis. The at least one light source is positioned on the longitudinal axis to illuminate the identification code on the optical disc and be reflected therefrom. The terminus of the image sensor is also positioned on the longitudinal axis, further from the disc-receiving portion than the at least one light source, and oriented to capture the identification code within its field of view. The image sensor and the at least one light source are cooperatively configured so that the terminus of the image sensor receives light reflected from the identification code and thereby readably detects the identification code.

Abstract: An optical reader comprises a housing, at least one light source inside the housing and an image sensor whose terminus is inside the housing. The housing has a longitudinal axis and a disc-receiving portion for receiving an optical disc so that the optical disc is coaxial with the longitudinal axis. The at least one light source is positioned on the longitudinal axis to illuminate the identification code on the optical disc and be reflected therefrom. The terminus of the image sensor is also positioned on the longitudinal axis, further from the disc-receiving portion than the at least one light source, and oriented to capture the identification code within its field of view. The image sensor and the at least one light source are cooperatively configured so that the terminus of the image sensor receives light reflected from the identification code and thereby readably detects the identification code.