US Patent Class 351
OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING




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Current as of: June, 1999
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  DF  CLASS NOTES
200  DF  EYE EXAMINING OR TESTING INSTRUMENT
201  DF  .~ For fusion and space perception testing (e.g., stereoscopic vision)
202  DF  .~.~ Of abnormal muscular functioning
203  DF  .~ Eye exercising or training type
204  DF  .~ For interpupillary distance measuring or lens positioning
205  DF  .~ Objective type
206  DF  .~.~ Including eye photography
207  DF  .~.~.~ Having spurious reflection blocking
208  DF  .~.~.~ Having means to detect proper distance or alignment (i.e., eye to instrument)
209  DF  .~.~ Including eye movement detection
210  DF  .~.~.~ Using photodetector
211  DF  .~.~ Including projected target image
212  DF  .~.~.~ For cornea curvature measurement
213  DF  .~.~ Including light filter or absorber
214  DF  .~.~ Including diaphram or slit
215  DF  .~.~ Including light polarizing means
216  DF  .~.~ Including lens selectively insertable in optical path
217  DF  .~.~.~ On rotary disc
218  DF  .~.~.~.~ Hand held type
219  DF  .~.~ With contact lens
220  DF  .~.~ Including reflectors with off-set surfaces
221  DF  .~.~ Including illuminator
222  DF  .~ Subjective type
223  DF  .~.~ Self examining type
224  DF  .~.~ Perimeter type
225  DF  .~.~.~ With rotatable arm
226  DF  .~.~.~ With bowl type screen
227  DF  .~.~ Including trial frame
228  DF  .~.~.~ With multifocal lens
229  DF  .~.~.~ With plural lens carrier
230  DF  .~.~.~ With individual lens holder
231  DF  .~.~.~ Removably attachable to eye glass frame
232  DF  .~.~ With light polarzing lens
233  DF  .~.~ Lens or filter selectively insertable in optical path
234  DF  .~.~.~ Mounted on rotatable disc
235  DF  .~.~.~.~ Having plural disc carrier
236  DF  .~.~.~ Movable along optical axis
237  DF  .~.~ Including target image projection
238  DF  .~.~.~ Tachistoscope type
239  DF  .~.~ Including test chart or target
240  DF  .~.~.~ Stereoscopic type
241  DF  .~.~.~ Astigmatism type
242  DF  .~.~.~ Chromaticity type
243  DF  .~.~.~ Illuminated
244  DF  .~.~.~ Having support or cabinet
245  DF  .~ Support
246  DF  .~ Methods of use
247  DF  .~.~ For contact lens fitting
41  DF  SPECTACLES AND EYEGLASSES
42  DF  .~ Lens repair devices
43  DF  .~ Floating or underwater type
44  DF  .~ With antiglare or shading
45  DF  .~.~ Partially occluding the light-path area
46  DF  .~.~ Perforated opaque plates or shields
47  DF  .~.~ Removable and/or adjustable filters or screens (e.g., clip-on type)
48  DF  .~.~.~ Spring biased
49  DF  .~.~ Polarizing
50  DF  .~ With rear-view reflectors
51  DF  .~ With decoration or ornamentation
52  DF  .~.~ Detachably secured
53  DF  .~ Shooting type
54  DF  .~ Invertible or reversible multifocal type
55  DF  .~ With vertical adjustment of multifocal lenses
56  DF  .~ Lorgnette type
57  DF  .~ With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments)
58  DF  .~.~ Spring biased or secured by friction members
59  DF  .~ Lens pivots in and out of optical path
60  DF  .~ With lens suspension bar (e.g., torsion bar)
61  DF  .~ U-shape or half-moon lens below eye level
62  DF  .~ With moisture prevention or absorption
63  DF  .~ Folding
64  DF  .~.~ Pince-nez type
65  DF  .~ Pince-nez type (including pince-nez bridges, nose grips and nose pads therefor)
66  DF  .~.~ With ear chain or temple
67  DF  .~.~ Plural bridges
68  DF  .~.~ With resilient extensible bridge
69  DF  .~.~ Lens and nose grip movable on flexible bridge
70  DF  .~.~ Posts or studs connecting bridge and nose grip
71  DF  .~.~ With spring biased nose grips
72  DF  .~.~.~ With pivoting levers
73  DF  .~.~.~.~ With flat spiral springs
74  DF  .~.~.~.~ With springs below bridge
75  DF  .~.~.~.~ With springs encased
76  DF  .~.~ With adjustable or rockable nose grips or pads
77  DF  .~.~.~ With ball joints
78  DF  .~.~ Nose pads or cushions
79  DF  .~.~.~ Plural pad parts engage the nose
80  DF  .~.~.~ Detachable
81  DF  .~.~.~ Perforated or serrated
82  DF  .~.~.~ Fluid-filled or suction type
83  DF  .~ Continuous rim mounting
84  DF  .~.~ With rotating means for multifocal lenses
85  DF  .~.~ Upper rim portion slotted
86  DF  .~.~ With lens retaining or locking means
87  DF  .~.~ Nose guards or pads integral with frame
88  DF  .~.~ Nose guards or pads removable or adjustable
89  DF  .~.~ With brace arm temple support
90  DF  .~ Split rim mounting
91  DF  .~.~ With brow pieces or top arms
92  DF  .~.~.~ Screwless lens mounting
93  DF  .~.~ With brace arm supports for temple or lens
94  DF  .~.~ With auxiliary bridge
95  DF  .~.~ Expansible and contractible lens rim
96  DF  .~.~ Locking member secures lens against rotation
97  DF  .~.~ Split connected by U-clamps or pivot links
98  DF  .~.~ Split on nasal side of rim (i.e., at bridge)
99  DF  .~.~ Clamp and temple pivot screw spaced along rim clamping arm
100  DF  .~.~ Clamp and temple pivot screw coincident on rim clamping arm
101  DF  .~.~ Metal clamps embrace the rims and connect to bridge and/or temples
102  DF  .~.~ Combined metal and plastic rims
103  DF  .~ Brace arm or semi-rimless mounting
104  DF  .~.~ Arm or rim of plastic or of different material (e.g., metal and plastic)
105  DF  .~.~ Detachable brace arm
106  DF  .~.~ Screwless lens mounting
107  DF  .~.~ With adjustable lens or frame part
108  DF  .~.~ Brace arm supports lens at two spaced points or constitutes a partial rim
109  DF  .~.~ Brace arm extends along edge of lens
110  DF  .~ Rimless mounting
111  DF  .~ Temples
112  DF  .~.~ With pocket clip or clasp
113  DF  .~.~ Spring biased
114  DF  .~.~ Resilient or flexible
115  DF  .~.~ Reversible or axially rotatable
116  DF  .~.~ Detachable
117  DF  .~.~ With covered core or rod (e.g., reinforced)
118  DF  .~.~ Extensible (e.g., with adjustable sleeve member
119  DF  .~.~ Two-part type (e.g., jointed)
120  DF  .~.~ Inclined to lens plane
121  DF  .~.~ With connector
122  DF  .~.~ With skin protecting earpiece covering
123  DF  .~.~ With head or ear engaging attachments
124  DF  .~ Bridges
125  DF  .~.~ Crossbar type
126  DF  .~.~ Flexible
127  DF  .~.~.~ Ball or chain type
128  DF  .~.~ Adjustable
129  DF  .~.~ Reinforced
130  DF  .~.~ With auxiliary support
131  DF  .~.~ With nose grip or guard integral with bridge
132  DF  .~.~ With nose grip, nose guard, pad, or cushion
133  DF  .~.~ With connectors or straps
134  DF  .~.~.~ Unitary bridge and straps
135  DF  .~.~.~ With lens clamping straps
136  DF  .~ Nose pads or cushions
137  DF  .~.~ Adjustable, rockable, or pivotable
138  DF  .~.~ Detachable
139  DF  .~.~ With cover or coating
140  DF  .~ Connectors
141  DF  .~.~ With screw locking means
142  DF  .~.~ Strap type
143  DF  .~.~.~ With particular bracing bar or stud
144  DF  .~.~.~ With cementing or fusing
145  DF  .~.~.~ With cushion around lens screw or bolt
146  DF  .~.~.~.~ Sleeve or bushing
147  DF  .~.~.~ With serrated interengaging parts
148  DF  .~.~.~ Adjusting
149  DF  .~.~.~ With interengaging projection and recess
150  DF  .~.~.~ With resilient parts (e.g., resilient strap arms)
151  DF  .~.~.~.~ Spring between lens and strap
152  DF  .~.~.~ With clamping arms
153  DF  .~.~ With particular hinge
154  DF  .~ Lens linings or rims
155  DF  .~ With support or holder (e.g., on hat or cap)
156  DF  .~.~ With head embracing bow or chain
157  DF  .~.~ Neck retainers
158  DF  .~ Combined
159  DF  .~ Ophtahalmic lenses or blanks
160 R  DF  .~.~ Eye contact type
161  DF  .~.~.~ Multifocal
162  DF  .~.~.~ Colored
160 H  DF  .~.~.~ Hydrophilic
163  DF  .~.~ With light filtering means
164  DF  .~.~.~ Multifocal
165  DF  .~.~.~ With sections of different light absorption
166  DF  .~.~ With lens protective layers
167  DF  .~.~ Cataract correction type
168  DF  .~.~ Multifocal
169  DF  .~.~.~ Gradually varying focal power
170  DF  .~.~.~ With prismatic segment
171  DF  .~.~.~ Three or more foci
172  DF  .~.~.~ Multiple elements
173  DF  .~.~ Image size (aniseikonia) correction
174  DF  .~.~ With beveled, polished or reinforced edges
175  DF  .~.~ Prismatic type
176  DF  .~.~ Focus and/or astigmatism correction
177  DF  .~.~ Methods
178  DF  .~ Methods (e.g., securing lenses in mountings)