SISTEMAS PARA INSPECCION OPTICA

• Main Authors: GROLLIMUND, GARY E, VANDERLINDEN, ROY E, LONGEST, HERBERT C.,JR, SMITH, BARRY S
• Format: Patent
• Language: Spanish
• Published: 01.12.1999
• Edition: 6
• Subjects: CIGARETTES; CIGARS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; HUMAN NECESSITIES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MACHINES FOR MAKING CIGARS OR CIGARETTES; MEASURING; PERFORMING OPERATIONS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; POSTAL SORTING; SEPARATING SOLIDS FROM SOLIDS; SMOKERS' REQUISITES; SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING; TESTING; TOBACCO; TRANSPORTING

SE PRESENTAN SISTEMAS MEJORADOS PARA LA INSPECCION OPTICA. LOS SISTEMAS MEJORADOS UTILIZAN CAJAS DE CAMARA MODIFICADAS (10) PARA SUMINISTRAR UNA ILUMINACION INCREMENTADA Y MAS UNIFORME DE LOS OBJETOS QUE ESTAN SIENDO INSPECCIONADOS A TRAVES DEL USO DE VENTANAS ILUMINADORAS. EL OBJETIVO DE LAS CAJAS DE CAMARA MEJORADAS ESTA CONTENIDO DENTRO DE UN ALOJAMIENTO SELLADO, AUTOCONTENIDO (12) QUE ESTA SEPARADO DE LA CAMARA PARA EVITAR LA CONTAMINACION POR PARTICULAS DEL OBJETIVO Y SUMINISTRAR UNA FLEXIBILIDAD MEJORADA DURANTE LA INSTALACION DE LAS CAJAS DE CAMARA EN LOS SISTEMAS DE INSPECCION. LA LUZ DE ILUMINACION SE TRANSMITE A LO LARGO DE FIBRAS (62), AL INTERIOR DE UN ILUMINADOR (44) Y A TRAVES DE UNAS VENTANAS (50), QUE ACTUAN COMO GUIAS DE ONDAS, Y SALE COMO RAYOS DE LUZ (64). LA IMAGEN REFLEJADA, EN FORMA DE RAYOS DE LUZ (66) ES CAPTURADA POR ESPEJOS (48) Y REFLEJADA A TRAVES DE VENTANAS (50) HACIA UN PRISMA (36). EL PRISMA TOMA CADA SUBIMAGEN Y LA DIRIGE HACIA UN PUNTO FOCAL CENTRAL, QUE PUEDE PRODUCIRSE EN UN ESPEJO PLEGADO (52) O DIRECTAMENTE EN EL OBJETIVO DE LA CAMARA. Improved systems for optical inspection are provided. The improved systems use modified camera boxes (10) to provide increased, and more uniform, illumination of the objects being inspected through the use of illuminator windows. The lens arrangement of the improved camera boxes is contained within a self-contained, sealed housing (12) that is separate from the camera to prevent particle contamination of the lens arrangement and provide improved flexibility during installation of the camera boxes on the inspection systems. Illumination light is transmitted along fibres (62), into illuminator (44) and through windows (50), which act as waveguides, and exit as light rays (64). The reflected image, in the form of light rays (66) is captured by mirrors (48) and reflected through windows (50) to prism (36). Prism (36) takes each subimage and directs it to a central focal point, which may occur at a folding mirror (52) or on the camera lens directly.