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2H087 Lenses
G02B9/00 -17/08;21/02-21/04;25/00-25/04
G02B9/00-17/08;21/02-21/04;25/00-25/04 KA KA00
DEVICES IN USE * 		KA01 KA02 KA03 KA06 KA07 KA08 KA09 KA10
. Cameras . . Photographing cameras . . Television cameras or video cameras . Projectors e.g. profile projectors cinema projectors or enlargers . Projection televisions . Copying machines . Microscopes . Endoscopes
KA11 KA12 KA13 KA14 KA15 KA16 KA17 KA18 KA19 KA20
. Medical implements or ophthalmoscopes fundus cameras . Measuring instruments . Optical disc devices . Viewfinders . Telescopes . . Binocular telescopes . . Monocular telescopes . Facsimiles . Scanning devices or laser printers . Spectacles
KA21 KA22 KA23 KA24 KA25 KA26 KA27 KA28 KA29
. Printing devices for semiconductor integrated circuits or the like . Optical communication instruments . Magnifying glass magnifiers . . Magnifying glass magnifiers with lighting . Door scopes . Laser beam processing instruments . using solar light . Rearview mirrors . Lighting devices
LA LA00
LENS FUNCTIONS * 		LA01 LA02 LA03 LA04 LA05 LA06 LA07
. Objectives . . Telephoto lenses . . Retrofocus or reversed telephoto lenses . . Triplet . . Tessar . . Gauss . . Fish-eye lenses
LA11 LA12 LA13
. Eyepieces . . Outer focus . . Inner focus
LA21 LA22 LA23 LA24 LA25 LA26 LA27 LA28 LA29 LA30
. Special function lenses . . for scanning f theta lenses . . Fourier transform lenses . . Lighting lenses . . Collimating lenses or collimators . . Beam shaping lenses or beam expanders . . Relay middle image relay lenses photographing eyepieces . . Anamorphotic or anamorphosis lenses . . Field lenses . . Converter lenses e.g. variable magnification lenses for use in conjunction with image converters or image intensifiers
MA MA00
FOCUSING * 		MA01 MA02 MA03 MA04 MA05 MA06 MA07 MA08 MA09 MA10
. Ultra-close-up or macro photography . Movement . . Fixed focal lenses or multifocal lenses . . . Whole moving . . . Partial moving . . . . Foremost-part moving . . . . Centre-part moving . . . . Rearmost-part moving . . . . Composite moving . . . Moving flat plates into and out of
MA11 MA12 MA13 MA14 MA15 MA16 MA17 MA18 MA19 MA20
. . Mechanical compensation or optical compensation zoom lenses . . . First group moving . . . Second group moving . . . Third group moving . . . Fourth group moving . . . Fifth group moving . . . More than five group moving . . . Partial moving in certain groups . . . Composite moving . . . moving flat plates into and out of
NA NA00
SPECIAL PERFORMANCE * 		NA01 NA02 NA03 NA04 NA05 NA06 NA07 NA08 NA09 NA10
. Aberration adjustment soft focus . telecentric . for infra-red radiation . for ultra-violet radiation . for X-rays . for underwater . Anti-vibration . Temperature humidity compensation . Adjustment during manufacturing . Dioptre adjustment
NA11 NA14 NA15 NA17 NA18
. Tilt shift lenses . Achromatism . . High-order achromatism or apochromat secondary achromatism . Dustproof fogproof . Prevention of stray light
PA PA00
NUMBER OF LENS ELEMENTS A (A CEMENTED LENS IS COUNTED IN SINGULAR FORM) * 		PA01 PA02 PA03 PA04 PA05 PA06 PA07 PA08 PA09 PA10
. One . Two . Three . Four . Five . Six . Seven . Eight . Nine . Ten
PA11 PA12 PA13 PA14 PA15 PA16 PA17 PA18 PA19 PA20
. Eleven . Twelve . Thirteen . Fourteen . More than fourteen . Number of cemented lenses . . Zero . . One . . Two . . Three
PB PB00
NUMBER OF LENS ELEMENTS B (CEMENTED LENSES ARE COUNTED IN MULTIPLE FORM) * 		PB01 PB02 PB03 PB04 PB05 PB06 PB07 PB08 PB09 PB10
. One . Two . Three . Four . Five . Six . Seven . Eight . Nine . Ten
PB11 PB12 PB13 PB14 PB15 PB16 PB17 PB18 PB19 PB20
. Eleven . Twelve . Thirteen . Fourteen . Fifteen . Sixteen . Seventeen . Eighteen . Nineteen . More than nineteen
QA QA00
ARRANGEMENTS OF LENS ELEMENTS * 		QA01 QA02 QA03 QA05 QA06 QA07
. Shape of forefront planes . . Convex planes to bodies . . Concave planes to bodies . Shape of rearmost part planes . . Convex planes to bodies . . Concave planes to bodies
QA11 QA12 QA13 QA14 QA15 QA16 QA17 QA18 QA19
. First lens being a positive lens . . Positive meniscus lenses . . Planoconvex lenses . . Biconvex lenses . . Negative-meniscus-shaped positive lenses . First lens being a negative lens . . Negative meniscus lenses . . Planoconcave lenses . . Biconcave lenses
QA21 QA22 QA25 QA26
. Second lens being a positive lens . Second lens being a negative lens . Third lens being a positive lens . Third lens being a negative lens
QA31 QA32 QA33 QA34 QA36 QA37 QA38 QA39
. Last lens being a positive lens . . Positive meniscus lenses . . Planoconvex lenses . . Biconvex lenses . Last lens being a negative lens . . Negative meniscus lenses . . Planoconcave lenses . . Biconcave lenses
QA41 QA42 QA45 QA46
. Second lens from the last being a positive lens . Second lens from the last being a negative lens . Third lens from the last being a positive lens . Third lens from the last being a negative lens
RA RA00
SPECIAL OPTICAL ELEMENTS * 		RA01 RA02 RA03 RA04 RA05 RA06 RA07 RA08
. Non-spherical faces . . Symmetry . . . Rotational symmetry . . . . of quadric surfaces . . . . including high-order terms . . . Rotational asymmetry . . . . cylindrical . . . . toric
RA11 RA12 RA13
. . Shape of reference planes . . . Projections to bodies . . . Recesses to bodies
RA21 RA22 RA23 RA26 RA27 RA28
. Graded refractive index . . Radial direction grade . . Axial direction grade . Parallel arrays integrators . deforming . Refractive index variable
RA31 RA32 RA33 RA34 RA35 RA36 RA37
. Stops . . Brightness stops . . . outside the system . . . . front . . . . behind . . . movable . . Field stops
RA41 RA42 RA43 RA44 RA45 RA46 RA47 RA48
. Prisms . Flat plates . Filters . Light-receiving elements . Light-emitting elements . Diffracting elements holograms . Fresnel lenses . Dichroic mirrors
SA SA00
VARIABLE MAGNIFICATION A * 		SA01 SA02 SA03 SA04 SA05 SA06 SA07 SA08 SA09 SA10
. Optical compensation or correction zoom . Mechanical compensation or correction zoom . . Number of groups . . . Two groups . . . . First group power . . . . . Positive . . . . . Negative . . . . Second group power . . . . . Positive . . . . . Negative
SA11 SA12 SA13 SA14 SA15 SA16 SA17 SA18 SA19 SA20
. . . Three groups . . . . First group power . . . . . Positive . . . . . Negative . . . . Second group power . . . . . Positive . . . . . Negative . . . . Third group power . . . . . Positive . . . . . Negative
SA21 SA22 SA23 SA24 SA25 SA26 SA27 SA28 SA29 SA30
. . . Four groups . . . . First group power . . . . . Positive . . . . . Negative . . . . Second group power . . . . . Positive . . . . . Negative . . . . Third group power . . . . . Positive . . . . . Negative
SA31 SA32 SA33
. . . . Fourth group power . . . . . Positive . . . . . Negative
SA41 SA42 SA43 SA44 SA45 SA46 SA47 SA48 SA49 SA50
. . . Five groups . . . . First group power . . . . . Positive . . . . . Negative . . . . Second group power . . . . . Positive . . . . . Negative . . . . Third group power . . . . . Positive . . . . . Negative
SA51 SA52 SA53 SA54 SA55 SA56 SA57
. . . . Fourth group power . . . . . Positive . . . . . Negative . . . . Fifth group power . . . . . Positive . . . . . Negative . . . More than five groups
SA61 SA62 SA63 SA64 SA65 SA66
. . movable . . . First group movable . . . Second group movable . . . Third group movable . . . Fourth group movable . . . Fifth group movable
SA71 SA72 SA73 SA74 SA75 SA76
. . fixed . . . First group fixed . . . Second group fixed . . . Third group fixed . . . Fourth group fixed . . . Fifth group fixed
SA81 SA82 SA83 SA84 SA85 SA86 SA87 SA88 SA89
. Multifocus . . changing a part . . . Front part change . . . Middle part change . . . Rear part change . . adding or subtracting a part . . . adding or subtracting front parts . . . adding or subtracting middle parts . . . adding or subtracting rear parts
SB SB00
VARIABLE MAGNIFICATION B * 		SB01 SB02 SB03 SB04 SB05 SB06 SB07
. Number in the first group . . One . . Two . . Three . . Four . . Five . . Six
SB11 SB12 SB13 SB14 SB15 SB16 SB17
. Number in the second group . . One . . Two . . Three . . Four . . Five . . Six
SB21 SB22 SB23 SB24 SB25 SB26 SB27
. Number in the third group . . One . . Two . . Three . . Four . . Five . . Six
SB31 SB32 SB33 SB34 SB35 SB36 SB37
. Number in the fourth group . . One . . Two . . Three . . Four . . Five . . Six
SB41 SB42 SB43 SB44 SB45 SB46 SB47
. Number in the fifth group . . One . . Two . . Three . . Four . . Five . . Six
TA TA00
CATOPTRIC SYSTEMS * 		TA01 TA02 TA03 TA04 TA05 TA06 TA08
. Catadioptric systems . Number of mirrors . . One . . Two . . Three . Non-spherical face mirrors . Mirrors movable
UA UA00
MATERIAL * 		UA01 UA02 UA03 UA04 UA06 UA09
. Plastics . Crystals e.g. LiF Ge . . Quartz or SiO2 . . Fluorite or CaF2 . Anomalous partial dispersion-ratio glass or anomalous dispersion glass . Fluids e.g. gases liquids liquid crystals
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