| ReturnTo Theme-Group-Choice | Onelevelup |
| 2H110 | Control of exposure in printing and copying | |
| G03B27/72 -27/80 | ||
| G03B27/72-27/80 | AA | AA00 CONTROL OF LIGHT SOURCE |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
| . Means of adjusting the quantity of light | . . Voltage and current | . . Frequency | . . Duration of light emission | . . Number of times that light is emitted | . . Adjustment of the quantity of light by means of pulse circuits | . . . Continuity angle | . . . Use of inverters | . . . Pulse circuits especially adapted for fluorescent light | . . Adjustment means that respond to the flash lamps | |||
| AA11 | AA12 | AA14 | AA15 | AA16 | AA17 | AA18 | AA19 | |||||
| . . . Charging voltage and capacitance | . . . Means of stopping light emission | . On-off control | . . Consideration and improvement of start-up characteristics | . Measures to prevent variations over time or caused by aging | . Distribution of illumination | . Color characteristics | . Use of multiple light sources or switching of light sources | |||||
| AA21 | AA22 | AA23 | AA24 | AA25 | AA26 | AA27 | ||||||
| . Control parameters | . . Control by detection of the quantity of light | . . Control by detection of temperature | . . Control based on processing conditions in a subsequent stage | . . Control based on the concentration of the original | . . Control based on the status of the power source | . . Control based on projection magnification | ||||||
| AB | AB00 MEANS OTHER THAN LIGHT SOURCES FOR CHANGING THE EXPOSURE LEVEL |
AB01 | AB03 | AB05 | AB06 | AB08 | AB09 | |||||
| . Shutters | . Aperture | . Slits | . Scanning speed | . Filters | . Electro-optical elements (e.g., liquid crystals) | |||||||
| AC | AC00 ARRANGEMENT AND CONTROL OF PHOTOMETRIC ELEMENTS |
AC01 | AC02 | AC03 | AC04 | AC06 | AC07 | AC08 | AC09 | |||
| . Direct viewing of light sources | . Direct viewing of originals | . Photometric elements mounted in the optical system for projection | . Direct viewing of exposure surfaces | . Moving elements | . . Elements designed for switching of optical systems (e.g., reader-printers) | . Correction of sensitivity | . . Spectral-sensitivity distribution | |||||
| AC11 | AC12 | AC13 | AC14 | AC16 | AC17 | AC18 | AC20 | |||||
| . Multiple elements | . . Splitting of the image range or space | . . Elements distinguished by uses and functions | . Image-sensor output | . Recording of measured values | . . Mean values | . . Minimum and maximum values | . Unit exposure meters | |||||
| BA | BA00 CONTROL ELEMENTS COMMON TO CONNECTED DEVICES |
BA01 | BA02 | BA03 | BA04 | BA06 | BA07 | BA08 | BA09 | BA10 | ||
| . Manual input units for value correction | . . Y (YMCD) especially for color use | . Switching between automatic and manual control | . . Forcible switching and prohibition of switching | . Indication units | . . Monitoring of corrected images with cathode-ray tubes | . . . Matching with prints | . . Indication of exposure quantity | . . Indication units for warnings | ||||
| BA11 | BA12 | BA13 | BA14 | BA15 | BA16 | BA17 | BA18 | BA19 | BA20 | |||
| . Control elements related to microcomputers | . . Interruption processing | . . Elements with data tables in memory | . . Data transmission and data receiving | . . Self-diagnosis | . Correction operations | . . Correction of density | . . Color correction | . . Scale correction | . . Fuzzy and learning functions | |||
| CA | CA00 CONTACT OF ORIGINALS AND PHOTOSENSITIVE MATERIALS |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | CA10 | |
| . Control conditions | . . Thickness of the original (i.e., mechanical control) | . . Transmission of the original (i.e., optical control) | . . Sensitivity of the photosensitive materials | . Compilation or editing and synthesis | . Objects or parameters to be controlled and output | . . Quantity of light | . . Feeding speed | . . Standby and stopping | . Combination with scanning light sources and cathode-ray tubes | |||
| CB | CB00 PROJECTION EXPOSURE AND PHOTOGRAPHIC PRINTING MACHINES IN PARTICULAR |
CB01 | CB02 | CB03 | CB04 | CB06 | CB07 | CB09 | ||||
| . Kinds of color correction means | . . Variants wherein the number of color-separation filters inserted into the light path is variable | . . . Calibration of light sources | . . . Structures and drive means for adjustment of the number of filters inserted | . . Combination of filters with different densities | . . . Characteristic structures and mechanisms | . . Characteristic combination of both methods | ||||||
| CB11 | CB12 | CB13 | CB15 | CB17 | CB18 | CB19 | ||||||
| . . Heads that use additive color-processing methods | . . . Red-Green-Blue (RGB) in sequence | . . . Simultaneous Red-Green-Blue (RGB) | . . White light and correction color light | . Other kinds of exposure | . . Sub-exposure or uniform exposure for improvement of characteristics | . . Dodging or intended uneven exposure | ||||||
| CB21 | CB22 | CB23 | CB24 | CB25 | CB26 | CB27 | CB28 | CB30 | ||||
| . Correction by means of image inspection | . . Purpose of inspection and correction | . . . Distinguishing between abnormal light sources and abnormal objects to be photographed | . . . . Adaptation to typical light-source types | . . . Inspection or correction corresponding to the image color changes | . . . Measures to prevent blurring, errors, and unnecessary frames | . . . Specific principal objects to be photographed | . . . Top and bottom, length and breadth, and trimming | . . Methods for automatic correction and identification | ||||
| CB31 | CB32 | CB33 | CB34 | CB35 | CB36 | CB37 | CB38 | CB39 | CB40 | |||
| . . . Splitting and inspection of images | . . . Concentration characteristics such as minimum, maximum, mean, and distribution | . . . . Automatic correction and identification methods relating to each color of red-green-blue (RGB) | . . . Spatial frequency | . . . Hue characteristics | . . . . Focusing on the colors of the principal images | . . . Weighting by position | . . . Connection of continuous frames | . . . Comparison to standard negatives and prints | . . . Consideration also given to correction data from visual observation | |||
| CB41 | CB42 | CB43 | CB44 | CB45 | CB46 | CB47 | CB48 | CB49 | ||||
| . Types and characteristics of negatives | . . Code information | . . . Characteristic means of reading | . . Mask concentration | . . Gamma characteristics | . . Characters and symbols | . Distinction and correspondence of negatives and positives | . Correction of reciprocity | . Correspondence to variable magnification | ||||
| CB51 | CB52 | CB53 | CB55 | CB56 | CB57 | CB58 | CB59 | |||||
| . Data on image-printing paper | . . Automatic input means | . . Selection of appropriate image-printing paper | . Correction according to printing results | . . Automation of proof printing | . . Correction based on data recorded on the prints | . . . Order information | . . . Frame numbers | |||||
| CB61 | CB62 | CB63 | CB64 | CB65 | CB66 | CB67 | CB68 | CB69 | CB70 | |||
| . Recorded data relating to taking pictures | . . Characteristic recording methods and means | . . Types of data | . . . Light sources | . . . . Flashes | . . . Automatic exposure | . . . Automatic focus | . . . Trimming | . . . Date and time | . . . Photography objects, conditions, and other individual data relating to taking pictures | |||
| CB71 | CB72 | CB73 | CB76 | CB77 | CB78 | CB80 | ||||||
| . Devices for image inspection | . . Devices for direct observation of images | . . Two-dimensional scanners or analyzers | . Means of recording correction values | . . Tapes and disks | . . Integrated-circuit boards | . Accessories (For exposure meters, AC20) | ||||||
| CC | CC00 ANALOG COPY MACHINES (FOR ITEMS PECULIAR TO COLOR, SEE CE) |
CC01 | CC02 | CC03 | CC04 | CC06 | CC07 | CC09 | ||||
| . Correction of illumination or blurs | . . Adjustment of slit plates | . . Control of exposure scanning | . . Correction for variable magnification | . Photometric timing | . . Photometric timing using an alternate scanning method | . Power source on-off timing | ||||||
| CC11 | CC13 | CC14 | CC15 | CC16 | CC17 | |||||||
| . Use of standard reflection plates | . Machines corresponding to the types of originals | . . Significance of half-tones in photographs | . . Colored paper | . . Transparent originals | . . . Machines using microfilm (e.g., reader-printers) | |||||||
| CC21 | CC22 | CC23 | CC25 | CC27 | CC29 | |||||||
| . Responsive copy machine functions | . . Editing or collation | . . Size of the originals | . Conveying of the originals | . Total-exposure copying machines | . Correspondence to or provision of adapters | |||||||
| CD | CD00 DIGITAL COPY MACHINES (FOR COLOR, SEE CE) |
CD01 | CD02 | CD03 | CD05 | CD06 | CD07 | |||||
| . Machines adapted to arrayed reading elements | . . Calibration, dispersion correction, and other control | . Light-source reading | . Video-signal processing | . . Correction of density | . . Correction of gradations | |||||||
| CD11 | CD12 | CD13 | CD14 | CD15 | CD16 | CD17 | CD18 | |||||
| . Light sources for recording | . . Lasers | . . . Beam-scanning means | . . . Intensity-modulation elements | . . . Recording using pulse-width modulation (PWM) | . . Cathode-ray tubes and full-scale scanners (FSS) | . . Arrayed recording elements | . . . Correction of dispersion | |||||
| CE | CE00 COLOR COPY MACHINES (FOR NORMAL COLOR PHOTOGRAPHY, SEE CB) |
CE01 | CE02 | CE03 | CE04 | CE05 | CE07 | CE08 | CE09 | CE10 | ||
| . Image formation for every color (e.g., electro-photography methods) | . . Color separation or reading processes | . . . Control of exposure level for each color | . . . . Selection and changing of filter characteristics | . . . . . Selection and changing according to the characteristics of the originals | . . Correction of color video signals | . . . Use of standard image signals | . . . Elimination of inclination or smearing | . . Formation of separate images | ||||
| CE11 | CE12 | CE13 | CE14 | CE15 | CE16 | CE18 | CE20 | |||||
| . . Synthesis or exposure processing | . . . Exposure level for each color | . . . . Selection or modification of the spectrum | . . . Cathode-ray tubes | . . . Transfer from negative sheets to positives | . . . . Control of conditions such as temperature and pressure | . Copying by means of diffusion-transfer methods | . Copying using the principles of added-color processing | |||||
| DA | DA00 DEVICES NOT COVERED ABOVE AND APPLICATIONS |
DA01 | DA03 | DA04 | DA05 | DA07 | DA09 | |||||
| . Production of microfilm | . Printing | . . Scanners | . X-ray photography | . Electronic still cameras | . Exposure devices for the manufacture of semiconductors |