ReturnTo Theme-Group-Choice | Onelevelup |
2H080 | Diaphragms for cameras | |
G03B9/00 -9/07@Z |
G03B9/00-9/07 | AA | AA00 STRUCTURE |
AA01 | AA02 | AA03 | AA04 | AA06 | AA07 | AA08 | AA10 | ||
. Sectors per se and combinations thereof | . . Properties of the materials | . . . Physical properties of the diaphragm itself | . . . . Liquid-crystal displays (LCD) | . . . Rubber | . . . Metals | . . . . Titanium | . . . Resin films | |||||
AA11 | AA12 | AA13 | AA14 | AA15 | AA16 | AA18 | AA19 | AA20 | ||||
. . . Use of fibers | . . . Laminated bodies | . . . Coating agents | . . . . Carbon-based agents | . . . . Lubricants | . . . . Anti-static agents | . . Shape of the diaphragm blades | . . . Variants wherein selection is undertaken from multiple circular holes | . . . Combination of two blades | ||||
AA21 | AA22 | AA23 | AA24 | AA26 | AA27 | AA28 | AA30 | |||||
. . . Combination of multiple blades | . . . . Blades made up of parts with different shapes | . . . . Blades with a notch for ensuring a minimum aperture at the center | . . . . Prevention of inclination | . . . Shape of the overlay unit | . . . Blades with projections | . . . Diaphragm blades per se that serve as a functional unit | . . Fixed diaphragms | |||||
AA31 | AA32 | AA34 | AA36 | AA37 | AA38 | AA40 | ||||||
. . Combination with filters | . . Use of multiple diaphragms | . Housings for mounting of sectors | . Members for moving or guiding of diaphragm blades | . . Cams | . . . Grooved cams | . . Shapes of cams | ||||||
AA41 | AA42 | AA43 | AA45 | AA46 | AA47 | AA48 | AA50 | |||||
. . . Cams that ensure uniform spacing between the diaphragm steps | . . . Shapes for the small side of the diaphragm | . . . Provision of slack on the open side of the diaphragm | . Drive sources for diaphragms | . . Springs | . . . Shared use of springs | . . . Spring-charging mechanisms | . . Fluids | |||||
AA51 | AA52 | AA54 | AA55 | AA56 | AA57 | AA58 | AA60 | |||||
. . Electrostrictive elements (i.e., piezoelectric) | . . . Bimorph elements | . . Electromagnetic driving | . . . Structure or arrangement of rotors | . . . . Rings | . . . . Rotors with coils | . . . . . Printed coils | . . . Structure or arrangement of stators | |||||
AA61 | AA63 | AA64 | AA65 | AA66 | AA67 | AA69 | AA70 | |||||
. . . . Stators with coils | . . . Drive members | . . . . Swinging or rocking members | . . . . Linear movement | . . . . Gears | . . . . Return-springs | . . . Step motors (i.e., pulse) | . . . Linear motors | |||||
AA71 | AA72 | AA74 | AA75 | AA76 | AA78 | AA79 | AA80 | |||||
. . . Detection of magnetic fields | . . . Measures to prevent cut-off of current flow | . . Arrangement of drive sources | . . . Drive sources within the camera | . . . Drive sources within the lens | . Drive-force transmission mechanisms | . . Interlocking of the camera and lens | . . . Variants wherein the member on the camera side is a linear reciprocating member | |||||
AA81 | AA82 | AA83 | AA85 | AA87 | AA88 | AA89 | ||||||
. . . Variants wherein the transmission member on the camera side is a rotating member | . . . . Rotating rings | . . . . Levers | . . Means for delay | . Members for operation of the diaphragm | . . Click-stops | . . Locking or releasing (when set in automatic operation) | ||||||
BB | BB00 APPLICATION |
BB01 | BB02 | BB03 | BB04 | BB05 | BB07 | BB09 | BB10 | |||
. Manual setting of the diaphragm | . . Pre-set diaphragms | . . . Retention means | . . . . Cams | . . . Means for transmission of preset values to the camera | . . Direct contraction of the diaphragm | . Adapted for autoexposure (AE) or electronic exposure (EE) (i.e., for still cameras) | . . Switching between autoexposure (AE) and preset diaphragms | |||||
BB11 | BB12 | BB13 | BB15 | BB16 | BB17 | BB18 | BB19 | |||||
. . Retention of the diaphragm in a desired position | . . . Use of magnets | . . . Use of cams that operate in stages | . . Speed-regulation means | . . Confirmation of diaphragm position | . . . Pulse counting | . . . . Use of photoconductive cells | . . . Slide resistors | |||||
BB21 | BB22 | BB23 | BB24 | BB25 | BB26 | BB27 | BB28 | |||||
. Servo diaphragms | . . Switching between manual or automatic operation | . . Detection of the size of the diaphragm aperture | . . Bridge control | . . Digital control | . . Prevention of hunching | . . Fade-in or fade-out types | . . Closed diaphragms | |||||
BB31 | BB32 | BB33 | BB35 | BB36 | BB37 | BB38 | BB39 | |||||
. Adaptation for zoom, bellows, or macro functions | . . Detection of zoom position | . . . Slide-resistors | . . Mechanisms for correcting the aperture size | . . . Cam mechanisms | . . . . Cams | . . . . . Cams located on rings | . . . . . Cams located on plates | |||||
BB41 | BB42 | BB43 | BB45 | BB47 | BB48 | BB49 | ||||||
. . . . Cam followers | . . . . . Diaphragm-mounting members | . . . . . Members for narrowing the size of the aperture | . . . Mechanisms with a means for transmission of an F-value for a fully open position | . . Aperture-size correction or limiting systems | . . . Correction of the aperture diameter | . . . Correction of the diaphragm position in the direction of the optical axis | ||||||
BB51 | BB52 | BB53 | BB54 | BB55 | BB56 | BB58 | BB59 | BB60 | ||||
. . Improvement of lens characteristics | . . Interlocking of the bellows with members for diaphragm operation | . . . Electrical interlocking | . . . Mechanical interlocking | . . . . Use of cables | . . . . Use of interlocking bars | . Means for previewing | . . Mechanical means | . . Electrical means | ||||
BB62 | BB63 | BB64 | BB65 | BB67 | BB68 | BB69 | ||||||
. Measures for when the lens is exchanged | . . Internal lens barrels | . . Locking means | . . Mounting means | . Adaptation for lenses that can tilt or shift | . Soft focusing | . Mirror lenses | ||||||
CC | CC00 OPERATING MODES |
CC01 | CC02 | CC03 | CC04 | CC05 | CC07 | CC09 | CC10 | |||
. Sequential control | . . Interlocking of the control of the diaphragm with other mechanisms | . . . Interlocking with the reflex mirror | . . . Interlocking with the shutter | . . . Interlocking with the flash | . Setting of the diaphragm | . Prevention of braking or bounding | . . Use of fluids | |||||
CC11 | CC12 | CC13 | CC14 | |||||||||
. . Use of spring force | . . . Presence of other spring members | . . Electrical means | . . Use of frictional force | |||||||||
DD | DD00 MANUFACTURE, ASSEMBLY, AND ADJUSTMENT |
DD01 | DD02 | DD03 | DD04 | DD06 | DD07 | DD08 | ||||
. Manufacturing of sectors per se | . . Mounting of nibs or pins | . . . Caulking | . . . Molding with resins | . Assembly of sectors | . Mounting of the lens-barrel | . Adjustment | ||||||
EE | EE00 DISPLAY |
EE01 | EE02 | |||||||||
. Display of the operating status of the diaphragm | . Calculator pads |