초록 ▼

A densitometer apparatus (410) is disclosed and is adapted to provide color density measurements of object samples. The densitometer apparatus (410) comprises a source light (580) for projecting light toward an object sample comprising a control strip (588, 620). A reflection optics assembly (576) i

A densitometer apparatus (410) is disclosed and is adapted to provide color density measurements of object samples. The densitometer apparatus (410) comprises a source light (580) for projecting light toward an object sample comprising a control strip (588, 620). A reflection optics assembly (576) is adapted to measure light density reflected from the object sample when the object sample is in the form of a paper control strip. A transmission optics assembly (618) is adapted to measure transmission density of light rays projected through the object sample when the object sample is in the form of a film control strip. A motor assembly (426) operating with a drive wheel assembly (434) and idler wheel assembly (440) automatically moves the object sample (588, 620) through the apparatus (410) adjacent the source light (580). A pair of guides (468, 470) are selectively adjustable by the operator to control movement of the object sample (588, 620) through the apparatus (410). In response to input from a key switch assembly (492) activatable by the operator, the apparatus (410) is adapted to perform various color density measurement and calibration functions, and display appropriate information to the operator through the use of a visual display (490).

대표청구항 ▼

A densitometer system adapted for measuring color characteristics of object samples under test, said system comprising: light source means for generating light rays and directing the same onto said object samples; reflection filter means positioned at a predetermined angle relative to the direction

A densitometer system adapted for measuring color characteristics of object samples under test, said system comprising: light source means for generating light rays and directing the same onto said object samples; reflection filter means positioned at a predetermined angle relative to the direction of object illumination by said light source means, and responsive to light rays reflected from said object samples so as to discriminate a predetermined color shade set of spectral responses of said reflected light rays; transmission filter means positioned relative to the direction of object illumination by said light source means, and responsive to light rays transmitted through said object samples so as to discriminate a predetermined color shade set of spectral responses of said transmitted light rays; reflection detection means responsive to light rays transmitted through said reflection filter means for generating on separate reflection detection paths reflection signals representative of the intensity of said light rays transmitted through said reflection filter means; transmission detection means responsive to light rays transmitted through said transmission filter means for generating on separate transmission detection paths transmission signals representative of the intensity of said light rays transmitted through said transmission filter means; reflection multiplexing means connected to said reflection detection means for time multiplexing said reflection signals on said separate reflection detection paths; transmission multiplexing means connected to said transmission detection means for time multiplexing said transmission signals on said separate transmission detection paths; processing means connected to said reflection multiplexing means and to said transmission multiplexing means for processing said multiplexed signals; input means connected to said processing means for providing operator input to said densitometer system; display means connected to said processing means for providing visual signals to an operator indicative of functions performed by said densitometer system; motor means connected to said processing means and adapted to automatically move said object samples through said densitometer system adjacent said light source means so as to provide an automated measurement of a plurality of color patches associated with said object samples; and guide means mounted to said densitometer system and adjustable by said operator so as to provide a guidance in at least one dimension of said object samples through said densitometer system.