| ReturnTo Theme-Group-Choice | Onelevelup |
| 2H083 | BLOCKING LIGHT FOR CAMERAS | |
| G03B11/00 -11/06 | ||
| G03B11/00-11/06 | AA | AA00 FILTER |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
| . Kinds of filters | . . Colour separation | . . Converting colour temperatures | . . Transmitting or blocking only infra-red light or ultra-violet light. | . . ND | . . Polarisation | . . . with rotating mechanisms specially mounted | . . Soft-focusing | . . Low-passing | . . Special effects | |||
| AA11 | AA12 | AA13 | AA14 | AA15 | AA16 | AA17 | AA18 | AA19 | AA20 | |||
| . Characteristic features of filters per se | . . Photochromism | . . Gelatine | . . Electro-optical elements | . . . Liquid-crystal displays (LCDs) | . . having physical working on the surfaces e.g. grooves | . . characterised by cross-sectional shapes | . . . partially defected | . . Surface coating | . . having filter surfaces divided into a plurality of sections | |||
| AA21 | AA22 | AA23 | AA25 | AA26 | AA27 | AA28 | AA29 | AA30 | ||||
| . Attaching filters to filter frames | . . Caulking or bonding | . . Springs | . Objects to be filtered | . . Image pickup elements | . . . correcting signals | . . Autofocus or AF elements | . . Auto exposure or AE elements | . . Optical systems for viewfinders | ||||
| AA31 | AA32 | AA33 | AA34 | AA35 | AA36 | |||||||
| . Use of filters | . . incorporated in cameras | . . . Turrets | . . . insertable and removable | . . . . swingably | . . . . slidably | |||||||
| AA41 | AA42 | AA43 | AA44 | AA45 | AA46 | AA47 | AA48 | AA50 | ||||
| . . incorporated in lenses | . . . screwed | . . . inserted in grooves | . . . . with springs | . . . . . radially | . . . . . in the direction of thrusts | . . . . with members for preventing filters from being dismounted | . . . in the rear ends of the lenses | . . combined with blades | ||||
| AA51 | AA52 | AA53 | AA54 | AA56 | AA58 | AA60 | ||||||
| . Relationship between filters and control of cameras | . . adapted for autofocusing or AF | . . adapted for auto-exposure or AE | . . Colour balance | . Indicating kinds of filters | . for preventing stray light | . Filter cases | ||||||
| BB | BB00 CAP FOR LENS OR MOUNT |
BB01 | BB02 | BB03 | BB04 | BB05 | BB08 | BB09 | BB10 | |||
| . Use | . . for twin-lens reflex cameras | . . for video cameras | . . Rear caps | . . Body caps | . Structures for attaching caps | . . Locking means | . . . Magnets | |||||
| BB11 | BB12 | BB13 | BB14 | BB16 | BB17 | BB18 | BB20 | |||||
| . . . Springs | . . . . using elasticity of the caps per se | . . . . using elasticity of locking parts per se | . . . . having separate springs on the locking parts | . . Operating means for removing | . . . moving in parallel | . . . . having cams | . . generating thrusting force by attaching caps | |||||
| BB21 | BB22 | BB23 | BB24 | BB27 | BB28 | BB29 | ||||||
| . Preventing caps from being lost | . . Cords | . . Means for attaching caps to other sections of cameras | . . flipping up caps from lenses | . Detecting the presence of attached caps | . . Warning | . . Locking release | ||||||
| BB31 | BB32 | BB33 | BB34 | BB35 | BB36 | |||||||
| . having additional functions | . . combined with hoods | . . having drying ability | . . having built-in electrical components | . . having mirrors | . . covering release buttons | |||||||
| CC | CC00 CAMERA WITH BUILT-IN COVER |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | ||||
| . Objects to be covered | . . Optical systems in addition to main lenses | . . . for autofocusing or AF | . . . for auto-exposure or AE | . . . Covers formed integrally | . . . having interlocking mechanisms | . . Image pickup elements | ||||||
| CC11 | CC12 | CC13 | CC14 | CC15 | ||||||||
| . Shapes of covers | . . Curved surfaces | . . characterised by shapes of joints | . . having bends | . . having windows on the surfaces of covers | ||||||||
| CC21 | CC22 | CC23 | CC24 | CC25 | CC26 | CC27 | CC28 | |||||
| . Opening and closing covers | . . Sliding types | . . . having single covers | . . . having a plurality of covers | . . . along curved surfaces | . . Rotating types | . . . Double-door types | . . . swinging | |||||
| CC31 | CC32 | CC33 | CC34 | CC35 | CC36 | CC37 | CC38 | |||||
| . Operating members for covers | . . Covers per se | . . Grips | . . Knobs | . . . Pushing types | . . . Sliding types | . . . Rotating types | . . Release buttons | |||||
| CC41 | CC42 | CC43 | CC44 | CC45 | CC46 | CC47 | CC48 | CC49 | CC50 | |||
| . associated with opening and closing covers | . . Zooming | . . Bifocal cameras | . . Autofocusing or AF | . . Shutters | . . Winders | . . Collapsing operation | . . Stroboscopes | . . Viewfinders | . . Indicators | |||
| CC51 | CC52 | CC53 | CC54 | CC55 | CC56 | CC57 | CC58 | CC59 | ||||
| . . Normal focal points | . . Basic auto-exposure or AE modes | . . Inhibiting operation | . . . Locking release | . . . . electrically | . . . . mechanically | . . . . inhibiting release buttons from being touched | . . Sequences | . . Filters | ||||
| CC61 | CC62 | CC63 | ||||||||||
| . Additional functions of covers | . . of opened covers combined with grips | . . with cleaning means | ||||||||||
| DD | DD00 LENS HOOD |
DD01 | DD02 | DD03 | DD04 | |||||||
| . Kinds | . . for dustproofing | . . for observing or photographing with cathode-ray tubes or CRTs | . . combined with lens covers | |||||||||
| DD11 | DD12 | DD13 | DD14 | DD15 | DD16 | DD17 | ||||||
| . Attaching mechanisms | . . built in cameras or lenses | . . for attaching lens hoods to lenses | . . . Screws | . . . Bayonets | . . . Springs | . . . Magnets | ||||||
| DD21 | DD22 | DD23 | DD24 | DD25 | DD26 | DD27 | DD28 | |||||
| . Types of storing | . . Collapsing | . . Telescoping | . . Attaching hoods oppositely for storing | . . Sliding | . . . Sliding parts | . . . Positioning | . . changing lens hoods according to focal lengths | |||||
| DD31 | DD32 | DD33 | DD34 | DD35 | DD37 | DD38 | DD39 | DD40 | ||||
| . Structures | . . Shapes of apertures | . . . changeable | . . . square | . . Internal shapes | . Additional functions | . . Stroboscopes | . . Microphones | . . Mirrors | ||||
| EE | EE00 EYE CUP OR EYEPIECE SHUTTER |
EE01 | EE02 | EE03 | EE04 | EE05 | EE06 | EE07 | EE08 | EE09 | ||
| . Eye cups or viewfinder hoods | . . Materials | . . . partly transparent | . . Shapes | . . . cross-sectional | . . . external | . . . . partly deformed to close viewfinders | . . attached to viewfinders | . . used at waist levels | ||||
| EE11 | EE12 | EE13 | EE14 | EE17 | EE18 | EE19 | ||||||
| . Eyepiece shutters | . . having separate closures | . . . plugged in cameras | . . . storing closures | . . built in cameras | . . . working based on physical properties | . . . mechanically | ||||||
| EE21 | EE22 | EE23 | EE24 | EE25 | EE26 | EE27 | EE28 | EE30 | ||||
| . . Members associated with eyepiece shutters | . . . worked by looking into viewfinders | . . . associated with stroboscopes | . . . associated with self-timers | . . . associated with release | . . . indicating on or off | . having additional functions | . . adjusting dioptric power | . Protecting viewfinder optical systems |