| ReturnTo Theme-Group-Choice | Onelevelup |
| 2H108 | Optical systems of projection type copiers | |
| G03B27/50 -27/50@Z | ||
| G03B27/50-27/50@Z | AA | AA00 SCANNING METHODS |
AA01 | AA02 | AA03 | AA05 | AA06 | AA07 | AA08 | AA09 | ||
| . Scanning methods with moving optical systems | . . Variants wherein the lens moves | . . Variants wherein the scanner scans in an arc | . Scanning methods with moving originals | . . Variants wherein the table for the originals moves | . . . Safety devices | . . . . Locking means to prevent movement of the table for the originals | . . . . Means to prevent the originals from falling off theb table | |||||
| AA12 | AA14 | AA15 | AA17 | AA19 | ||||||||
| . . Originals that are wrapped around a rotating drum | . . Movement of the originals | . . . Means for turning from the front side to the rear side | . Simultaneous movement of the optical system and the originals | . Switching between methods wherein the optical system moves and the originals are moved | ||||||||
| AA21 | AA22 | AA24 | AA26 | AA28 | ||||||||
| . Exposure by reciprocation | . . Projection positioning | . Synthesized exposure | . Switching among multiple optical systems | . Bending of the optical path in a direction perpendicular to the scanning direction | ||||||||
| BA | BA00 SYSTEMS WITH MULTIPLE ORIGINAL SURFACES |
BA01 | BA02 | BA05 | BA07 | |||||||
| . Scanning surfaces with different shapes | . . Placement side by side in the same plane | . Systems with switching means | . Systems designed for duplex copying | |||||||||
| BB | BB00 SYSTEMS WITH MULTIPLE PHOTOSENSITIVE SURFACES |
BB01 | BB04 | |||||||||
| . Systems adapted for color copying | . Systems designed for duplex copying | |||||||||||
| CA | CA00 CHARACTERISTICS OF ORIGINALS |
CA01 | CA03 | CA04 | CA05 | CA07 | CA08 | CA10 | ||||
| . Color originals | . Bound originals | . . Pressing members | . . Optical auxiliary tools for bound originals | . Transmitted or projected originals | . . Light-source arrangements | . Switching between thin and thick originals | ||||||
| CB | CB00 SYSTEMS WITH CHARACTERISTIC PHOTOSENSITIVE MATERIALS |
CB01 | CB03 | CB05 | CB07 | CB09 | ||||||
| . Image-pickup elements | . Systems that maintain a flat surface while scanning | . Rotary photosensitive materials | . Cut sheets | . Roll sheets | ||||||||
| DA | DA00 SYSTEMS FOR TRANSMITTING AND RECEIVING |
DA01 | DA02 | DA06 | ||||||||
| . Image-pickup elements arranged in the optical path | . . Use of half mirrors | . Use of picture signals for recording | ||||||||||
| EA | EA00 MULTI-LENS FIBERS |
EA01 | EA02 | EA03 | EA04 | EA05 | EA07 | EA08 | EA09 | |||
| . Optical fibers | . . Optical fibers for light sources | . . Shapes of the end or edge section | . . . Inclined end or edge sections | . . . Sections differing in position | . . Combination with lenses | . . . Lens arrays | . . . Fresnel lenses | |||||
| EA11 | EA12 | EA13 | ||||||||||
| . Combination with mirrors or prisms | . . Multi-lens fibers located on the inside | . . Freely moving multi-lens fibers | ||||||||||
| EA21 | EA22 | EA23 | EA24 | EA25 | EA26 | EA27 | EA28 | EA29 | ||||
| . Arrangements | . . Arrangements related to length | . . Arrangements related to pitch | . . Multilens fibers arranged in a series | . . Multilens fibers arranged in one row | . . Multilens fibers arranged in two rows | . . Arrangement of multiple rows to form a surface | . . Switching of objects to be moved | . . . Switching by rotation | ||||
| EA31 | EA32 | EA33 | EA34 | EA35 | EA36 | EA38 | EA39 | |||||
| . Manufacture | . . Fixing | . . . V-shaped grooves | . . . Adhesives | . . . . Variants wherein the adhesives are optical shielding materials | . . . Coating of the outer circumference | . Materials | . . Plastics | |||||
| EA41 | EA42 | EA44 | EA45 | EA46 | EA47 | |||||||
| . Adjustment of the position of the table for the originals and photosensitive bodies | . . Angles | . . Distance | . . . Adjustment of each object separately | . . . Adjustment of equal distances | . . . . Pantographs | |||||||
| EA51 | EA52 | EA53 | EA54 | EA56 | ||||||||
| . Combination with other optical members | . . Filters | . . . Red-green-blue filters | . . . Polarization | . . Members for correction of the light quantity | ||||||||
| FA | FA00 CONTROL OF POSITION AND TIMING FOR SCANNING |
FA01 | FA02 | FA03 | FA05 | FA07 | FA08 | |||||
| . Control of position and timing | . . Starting position | . . . Resetting by switching the power source on and off | . . Timing of the start of scanning | . . Return position | . . . Control based on the amount of time from starting position | |||||||
| FA12 | FA13 | FA15 | FA17 | |||||||||
| . . Return timing | . . . Control of the stopping time at return position | . . Elimination of backlash | . . Location and timing of the auxiliary lighting means of the light source | |||||||||
| FA21 | FA22 | FA23 | FA25 | FA27 | FA29 | FA30 | ||||||
| . Input contents and input means for control | . . Size of the original | . . Size of the photosensitive materials and transfer paper | . . Rate of magnification | . . Timing of conveyance of the photosensitive materials | . . Position and coordinate input relating to the originals | . . . Setting members in the vicinity of the platen | ||||||
| FA31 | FA32 | FA34 | ||||||||||
| . Means of position detection | . . Position detection by limit switches | . . Encoders | ||||||||||
| FB | FB00 CONTROL OF SCANNING SPEED |
FB01 | FB04 | FB05 | FB06 | FB07 | FB08 | |||||
| . Means of detection | . Objects or parameters to be detected | . . Speed | . . Direction | . . . Direction of motor rotation | . . Loads | |||||||
| FB11 | FB12 | FB14 | FB15 | FB16 | FB17 | FB18 | ||||||
| . Drive sources | . . Optical systems with multiple drive sources | . . Linear motors | . . Rotary motors likely to run in reverse | . . Pulse motors | . . Direct-current servo motors | . . Sliding-type motors | ||||||
| FB21 | FB22 | FB23 | FB24 | FB25 | FB27 | |||||||
| . Stability of driving | . . Prevention of vibration | . . . Flywheels | . . . Dampers | . . . . Collision dampers | . . Counterweights | |||||||
| FB32 | FB33 | FB34 | FB35 | FB36 | ||||||||
| . . Feedback | . . . Position | . . . Speed | . . . Load | . . . Starting of operation when a fixed value is exceeded | ||||||||
| FB41 | FB42 | FB43 | FB44 | FB45 | FB46 | FB47 | ||||||
| . Change of speed | . . Brakes | . . . Change of brake position | . . . . Change of brake position at the time of return | . . . . Change of brake position at the time of scanning | . . . Regenerative braking | . . . Braking by short-circuiting the motor | ||||||
| FB52 | FB53 | FB54 | FB55 | |||||||||
| . . Acceleration means | . . . Acceleration to maintain a constant return time | . . . Acceleration by springs | . . . Acceleration by magnetic force | |||||||||
| FB61 | FB62 | FB63 | FB64 | FB66 | FB68 | FB70 | ||||||
| . Driving means | . . Wires | . . . Tension adjustment | . . . . Idler wheels | . . Belts | . . Screw feeding | . . Rack-and-pinion means | ||||||
| FB72 | FB73 | FB75 | FB76 | FB77 | ||||||||
| . . Connection to optical members | . . . Position adjustment | . . Pulleys | . . . Position adjustment | . . . Use of pulleys that have multiple diameters | ||||||||
| FB82 | FB83 | FB84 | FB85 | |||||||||
| . . Mechanical transmission | . . . Clutches | . . . . One-way clutches | . . . Gears | |||||||||
| FB91 | FB92 | FB94 | FB96 | |||||||||
| . Guide systems | . . Mounting to frames | . . Application of oil | . . Guide systems with roller bearings | |||||||||
| FC | FC00 PREVENTION OF SCANNING EXPOSURE |
FC01 | FC04 | FC07 | ||||||||
| . Open or closed status of the platen cover | . Prevention of scanning exposure based on the presence or absence of originals | . Turning-off of lamps | ||||||||||
| GA | GA00 VARIOUS TYPES OF CORRECTION MEMBERS AND ARRANGEMENT OF CORRECTION MEMBERS |
GA01 | GA02 | GA04 | GA06 | GA09 | ||||||
| . Arrangements | . . Vicinity of the light source | . . Vicinity of the lens | . . Vicinity of the photosensitive bodies | . Fixed amounts of correction | ||||||||
| GA11 | GA12 | GA13 | GA14 | GA15 | GA16 | GA17 | GA18 | GA20 | ||||
| . Adjustable members | . . Liquid crystals | . . Members composed of two parts with only one moving side | . . Members with both sides moving | . . Pupil types | . . Variants wherein a plate is inserted in or removed from the optical path | . . . Rotating members | . . Variants wherein one side is composed of multiple parts | . . Initial adjustment | ||||
| HA | HA00 ARRANGEMENT AND POSITIONING |
HA01 | HA03 | HA05 | HA07 | |||||||
| . Inegration of optical systems | . Lens positioning and adjustment | . Mirror positioning and adjustment | . Adjustment during assembly or inspection | |||||||||
| JA | JA00 OTHERS |
JA01 | JA02 | JA04 | JA06 | JA08 | JA10 | |||||
| . Cleaning means | . Protection against dust | . Cooling | . Detection of abnormalities and diagnosis | . Lamp housings | . Power feeding to the moving units | |||||||
| JA11 | JA13 | JA15 | JA17 | JA18 | JA19 | |||||||
| . Optical-shielding members for the elimination of stray light | . Shutters and shutter arrangements | . Detection of the size of the original | . Exposure that is not image-related | . . Removal of black frames | . . Sub-exposure levels |