Lens blank and frame coordinator and method of using same

Claim 2

A lens blank and spectacle frame coordinator for use in determining an appropriate lens blank and frame combination satisfying a patient''s prescription comprising: a plaque having arranged thereon graphical representations of different typical types of lens blank, first scale means disposed to the nasal side of said representations for use in adjusting a selected spectacle frame thereover in accordance with the interpupillary data for a particular patient, second scale means extending at right angles to said first scale with its reading edge along the vertical bisector of the reading portion of a lens and having means usable in adjusting the lower inner edge of the selected frame to lie in registry with the reading on said second scale corresponding to the reading segment height value prescribed for said patient, and at least one outline representing the periphery of a typical lens blank.

Claim 3

A lens blank and frame coordinator as defined in claim 1 characterized in the provision in different areas of said plaque of graphical representations of a series of different types of lens blanks, each of said graphical representations including said first and second scales similarly arranged relative to one another and to said lens blank circles, and each of said graphical representations being similarly usable in selecting the appropriate lens blank for a particular spectacle frame.

Claim 4

A lens blank and frame coordinator as defined in claim 2 characterized in that one of said graphical representations is designed for use in selecting round bifocal types of lens blanks of different sizes.

Claim 5

A lens blank and frame coordinator as defined in claim 2 characterized in that one of said graphical representations is designed for use in selecting lenticular lens blanks including, single vision, regular and aspheric, aspheric round bifocal, aspheric flat top bifocal, and regular round bifocal.

Claim 6

A lens blank and frame coordinator as defined in claim 2 characterized in that one of said graphical representations is designed for use in selecting one of several different sizes of flat top bifocal lens blanks.

Claim 7

A lens blank and frame coordinator as defined in claim 2 characterized in that one of said graphical representations is designed for use in selecting one of several different sizes of flat top trifocal lens blanks.

Claim 8

A lens blank and frame coordinator as defined in claim 2 characterized in that one of said graphical representations is designed for use in selecting lens blanks including single vision plus cylinders, single vision minus cylinders, single vision spheres of various diameters, and Ben Franklin bifocal.

Claim 9

That method of determining whether a particular spectacle frame can be fitted with a lens cut from a particular size lens blank which method comprises: placing one end of the selected spectacle frame over a graphical representation of the chosen type of lens blank to be finished for mounting in the frame which graphical representation is equipped with first and second scales lying at right angles to one another in a common plane and respectively positioned to measure the interpupillary distance and the segment height distance values, adjusting the selected frame lengthwise of said first and second scales until the transverse bisector of the frame nose piece coincides with the prescribed interpupillary value of said first scale and the lower inner edge of the lens mounting opening in the frame is aligned with the prescribed segment height value of said second scale, and then visually observing whether all rim portions of the lens blank falls outside all portions of the frame lens seat.

Claim 10

That method of determining whether a particular spectacle frame can be fitted with a lens cut from a particular size lens blank which method comprises: placing one end of the selected spectacle frame over a graphical representation of the chosen type of lens blank to be finished for mounting in the frame which graphical representation is equipped with first and second scales lying at right angles to one another in a common plane and respectively positioned to measure the interpupillary distance and the segment height distance values, adjusting the selected frame lengthwise of said first and second scales until the transverse bisector of the frame nose piece coincides with the prescribed interpupillary value of said first scale and the lower inner edge of the lens mounting opening in the frame is aligned with the prescribed segment height value of said second scale, and then visually observing whether all rim portions of the lens blank falls outside all portions of the frame lens seat.

Claim 11

That method defined in claim 8 characterized in the steps of providing a plurality of sets of said graphical representations including associated first and second scales for each set, at least certain of said sets representing multifocal lens blanks having characteristics differing from those of all other of said sets, whereby the user can employ any of said sets depending upon the type of lens prescribed for a particular patient.

Claim 12

That method defined in claim 9 characterized in the step of labeling each of said sets of graphical representations with information as to the size and type of each lens blank therein represented.

Claim 13

A lens blank and frame coordinator as defined in claim 1 characterized in that said graphical representations are arranged in sets of outlines of different types.

Claim 14

A lens blank and frame coordinator as defined in claim 11 characterized in that the outlines in said sets are superimposed upon one another and vary in size.

Claim 15

A lens blank and frame coordinator as defined in claim 11 characterized in that the outlines in said sets represent different distinctive types of lens blanks.

Claim 16

A lens blank and frame coordinator as defined in claim 13 characterized in that certain of said outlines represent single focal lens blanks and others thereof multifocal lens blanks.