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 Class   351OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING
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  200           EYE EXAMINING OR TESTING INSTRUMENT
  201           . (1 indent ) For fusion and space perception testing (e.g., stereoscopic vision)
  202           .. (2 indent ) Of abnormal muscular functioning
  203           . (1 indent ) Eye exercising or training type
  204           . (1 indent ) For interpupillary distance measuring or lens positioning
  205           . (1 indent ) Objective type
  206           .. (2 indent ) Including eye photography
  207           ... (3 indent ) Having spurious reflection blocking
  208           ... (3 indent ) Having means to detect proper distance or alignment (i.e., eye to instrument)
  209           .. (2 indent ) Including eye movement detection
  210           ... (3 indent ) Using photodetector
  211           .. (2 indent ) Including projected target image
  212           ... (3 indent ) For cornea curvature measurement
  213           .. (2 indent ) Including light filter or absorber
  214           .. (2 indent ) Including diaphram or slit
  215           .. (2 indent ) Including light polarizing means
  216           .. (2 indent ) Including lens selectively insertable in optical path
  217           ... (3 indent ) On rotary disc
  218           .... (4 indent ) Hand held type
  219           .. (2 indent ) With contact lens
  220           .. (2 indent ) Including reflectors with off-set surfaces
  221           .. (2 indent ) Including illuminator
  222           . (1 indent ) Subjective type
  223           .. (2 indent ) Self examining type
  224           .. (2 indent ) Perimeter type
  225           ... (3 indent ) With rotatable arm
  226           ... (3 indent ) With bowl type screen
  227           .. (2 indent ) Including trial frame
  228           ... (3 indent ) With multifocal lens
  229           ... (3 indent ) With plural lens carrier
  230           ... (3 indent ) With individual lens holder
  231           ... (3 indent ) Removably attachable to eye glass frame
  232           .. (2 indent ) With light polarzing lens
  233           .. (2 indent ) Lens or filter selectively insertable in optical path
  234           ... (3 indent ) Mounted on rotatable disc
  235           .... (4 indent ) Having plural disc carrier
  236           ... (3 indent ) Movable along optical axis
  237           .. (2 indent ) Including target image projection
  238           ... (3 indent ) Tachistoscope type
  239           .. (2 indent ) Including test chart or target
  240           ... (3 indent ) Stereoscopic type
  241           ... (3 indent ) Astigmatism type
  242           ... (3 indent ) Chromaticity type
  243           ... (3 indent ) Illuminated
  244           ... (3 indent ) Having support or cabinet
  245           . (1 indent ) Support
  246           . (1 indent ) Methods of use
  247           .. (2 indent ) For contact lens fitting
  41           SPECTACLES AND EYEGLASSES
  42           . (1 indent ) Lens repair devices
  43           . (1 indent ) Floating or underwater type
  44           . (1 indent ) With antiglare or shading
  45           .. (2 indent ) Partially occluding the light-path area
  46           .. (2 indent ) Perforated opaque plates or shields
  47           .. (2 indent ) Removable and/or adjustable filters or screens (e.g., clip-on type)
  48           ... (3 indent ) Spring biased
  49           .. (2 indent ) Polarizing
  50           . (1 indent ) With rear-view reflectors
  51           . (1 indent ) With decoration or ornamentation
  52           .. (2 indent ) Detachably secured
  53           . (1 indent ) Shooting type
  54           . (1 indent ) Invertible or reversible multifocal type
  55           . (1 indent ) With vertical adjustment of multifocal lenses
  56           . (1 indent ) Lorgnette type
  57           . (1 indent ) With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments)
  58           .. (2 indent ) Spring biased or secured by friction members
  59           . (1 indent ) Lens pivots in and out of optical path
  60           . (1 indent ) With lens suspension bar (e.g., torsion bar)
  61           . (1 indent ) U-shape or half-moon lens below eye level
  62           . (1 indent ) With moisture prevention or absorption
  63           . (1 indent ) Folding
  64           .. (2 indent ) Pince-nez type
  65           . (1 indent ) Pince-nez type (including pince-nez bridges, nose grips and nose pads therefor)
  66           .. (2 indent ) With ear chain or temple
  67           .. (2 indent ) Plural bridges
  68           .. (2 indent ) With resilient extensible bridge
  69           .. (2 indent ) Lens and nose grip movable on flexible bridge
  70           .. (2 indent ) Posts or studs connecting bridge and nose grip
  71           .. (2 indent ) With spring biased nose grips
  72           ... (3 indent ) With pivoting levers
  73           .... (4 indent ) With flat spiral springs
  74           .... (4 indent ) With springs below bridge
  75           .... (4 indent ) With springs encased
  76           .. (2 indent ) With adjustable or rockable nose grips or pads
  77           ... (3 indent ) With ball joints
  78           .. (2 indent ) Nose pads or cushions
  79           ... (3 indent ) Plural pad parts engage the nose
  80           ... (3 indent ) Detachable
  81           ... (3 indent ) Perforated or serrated
  82           ... (3 indent ) Fluid-filled or suction type
  83           . (1 indent ) Continuous rim mounting
  84           .. (2 indent ) With rotating means for multifocal lenses
  85           .. (2 indent ) Upper rim portion slotted
  86           .. (2 indent ) With lens retaining or locking means
  87           .. (2 indent ) Nose guards or pads integral with frame
  88           .. (2 indent ) Nose guards or pads removable or adjustable
  89           .. (2 indent ) With brace arm temple support
  90           . (1 indent ) Split rim mounting
  91           .. (2 indent ) With brow pieces or top arms
  92           ... (3 indent ) Screwless lens mounting
  93           .. (2 indent ) With brace arm supports for temple or lens
  94           .. (2 indent ) With auxiliary bridge
  95           .. (2 indent ) Expansible and contractible lens rim
  96           .. (2 indent ) Locking member secures lens against rotation
  97           .. (2 indent ) Split connected by U-clamps or pivot links
  98           .. (2 indent ) Split on nasal side of rim (i.e., at bridge)
  99           .. (2 indent ) Clamp and temple pivot screw spaced along rim clamping arm
  100           .. (2 indent ) Clamp and temple pivot screw coincident on rim clamping arm
  101           .. (2 indent ) Metal clamps embrace the rims and connect to bridge and/or temples
  102           .. (2 indent ) Combined metal and plastic rims
  103           . (1 indent ) Brace arm or semi-rimless mounting
  104           .. (2 indent ) Arm or rim of plastic or of different material (e.g., metal and plastic)
  105           .. (2 indent ) Detachable brace arm
  106           .. (2 indent ) Screwless lens mounting
  107           .. (2 indent ) With adjustable lens or frame part
  108           .. (2 indent ) Brace arm supports lens at two spaced points or constitutes a partial rim
  109           .. (2 indent ) Brace arm extends along edge of lens
  110           . (1 indent ) Rimless mounting
  111           . (1 indent ) Temples
  112           .. (2 indent ) With pocket clip or clasp
  113           .. (2 indent ) Spring biased
  114           .. (2 indent ) Resilient or flexible
  115           .. (2 indent ) Reversible or axially rotatable
  116           .. (2 indent ) Detachable
  117           .. (2 indent ) With covered core or rod (e.g., reinforced)
  118           .. (2 indent ) Extensible (e.g., with adjustable sleeve member
  119           .. (2 indent ) Two-part type (e.g., jointed)
  120           .. (2 indent ) Inclined to lens plane
  121           .. (2 indent ) With connector
  122           .. (2 indent ) With skin protecting earpiece covering
  123           .. (2 indent ) With head or ear engaging attachments
  124           . (1 indent ) Bridges
  125           .. (2 indent ) Crossbar type
  126           .. (2 indent ) Flexible
  127           ... (3 indent ) Ball or chain type
  128           .. (2 indent ) Adjustable
  129           .. (2 indent ) Reinforced
  130           .. (2 indent ) With auxiliary support
  131           .. (2 indent ) With nose grip or guard integral with bridge
  132           .. (2 indent ) With nose grip, nose guard, pad, or cushion
  133           .. (2 indent ) With connectors or straps
  134           ... (3 indent ) Unitary bridge and straps
  135           ... (3 indent ) With lens clamping straps
  136           . (1 indent ) Nose pads or cushions
  137           .. (2 indent ) Adjustable, rockable, or pivotable
  138           .. (2 indent ) Detachable
  139           .. (2 indent ) With cover or coating
  140           . (1 indent ) Connectors
  141           .. (2 indent ) With screw locking means
  142           .. (2 indent ) Strap type
  143           ... (3 indent ) With particular bracing bar or stud
  144           ... (3 indent ) With cementing or fusing
  145           ... (3 indent ) With cushion around lens screw or bolt
  146           .... (4 indent ) Sleeve or bushing
  147           ... (3 indent ) With serrated interengaging parts
  148           ... (3 indent ) Adjusting
  149           ... (3 indent ) With interengaging projection and recess
  150           ... (3 indent ) With resilient parts (e.g., resilient strap arms)
  151           .... (4 indent ) Spring between lens and strap
  152           ... (3 indent ) With clamping arms
  153           .. (2 indent ) With particular hinge
  154           . (1 indent ) Lens linings or rims
  155           . (1 indent ) With support or holder (e.g., on hat or cap)
  156           .. (2 indent ) With head embracing bow or chain
  157           .. (2 indent ) Neck retainers
  158           . (1 indent ) Combined
  159           . (1 indent ) Ophthalmic lenses or blanks
  160R           .. (2 indent ) Eye contact type
  161           ... (3 indent ) Multifocal
  162           ... (3 indent ) Colored
  160H           ... (3 indent ) Hydrophilic
  163           .. (2 indent ) With light filtering means
  164           ... (3 indent ) Multifocal
  165           ... (3 indent ) With sections of different light absorption
  166           .. (2 indent ) With lens protective layers
  167           .. (2 indent ) Cataract correction type
  168           .. (2 indent ) Multifocal
  169           ... (3 indent ) Gradually varying focal power
  170           ... (3 indent ) With prismatic segment
  171           ... (3 indent ) Three or more foci
  172           ... (3 indent ) Multiple elements
  173           .. (2 indent ) Image size (aniseikonia) correction
  174           .. (2 indent ) With beveled, polished or reinforced edges
  175           .. (2 indent ) Prismatic type
  176           .. (2 indent ) Focus and/or astigmatism correction
  177           .. (2 indent ) Methods
  178           . (1 indent ) Methods (e.g., securing lenses in mountings)
 
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This data is current as of December/2011