MXPA99004123A

MXPA99004123A - Lenses and spectacles bearing lenses

Info

Publication number: MXPA99004123A
Application number: MXPA/A/1999/004123A
Authority: MX
Inventors: John Edwards Simon; Maurice Perrott Colin; Douglas O Connor Kevin
Original assignee: John Edwards Simon; O'connor Kevin Douglas; Maurice Perrott Colin; Sola International Holdings Ltd
Priority date: 1997-04-17
Filing date: 1999-04-30
Publication date: 1999-10-14

Abstract

An ophthalmic article inlcuding a first lens element having a front and rear surface;and a complementary lens element capable of bearing a prescription (Rx) surface having a front surface so shaped to closely approach at least a portion of the rear surface of the first lens element;the complementary lens element providing at least a portion of the refractive power required by the wearer;the ophthalmic article remaining substantially free of optical distortion. Also, the application discloses an optical lens element including a front and back surface, at least one surface being continuous, and forming a prescription (Rx) zone and optionally a non-prescription peripheral temporal zone, at least one surface exhibiting a changeof base curve across the field of vision of the wearer;the front and/or back surface bearing a surface correction to at least partially adjust for optical errors. A method of designing the lens element is also disclosed.

Description

LENSES AND GOGGLES CONTAINING LENSES DESCRIPTION OF THE INVENTION The present invention relates to spectacles carrying sun lenses, in particular spectacles with refractive power and to optical lens elements for frame mounting of the envelope or cover type. It is known as fabricax non-corrective glasses such as sun glasses or goggles that have wraparound fragments designed to protect the eye from incidental light, wind and foreign objects in the user's temporal field of vision. Light in the region of UV rays can enter the eye from angles of up to 100 ° from the line of sight, but it has not been possible, however, with "the sun glasses of the prior art or protective goggles, to provide glasses such that they have significant refractive power, and at the same time maintain a cosmetically acceptable appearance. The radius of curvature required to provide an ophthalmic lens that includes a prescription surface is such that the glasses would produce a bulging eye appearance, which would be aesthetically unacceptable. However, the direct use of prior art sun glasses-with refractive power does not allow the retro fitting of sun glasses without prescription or the use of prescription lenses with a variety of sun glasses Although attempts have been made in the prior art to provide a wraparound sun cover over generally normal prescription glasses, such products are generally unacceptable from the aesthetic point of view and suffer from significant optical distortions.Also attempts have been made to provide peelable prescription lenses with respect to ordinary sun glasses, but such arrangements are both aesthetically unactracting and at the same time suffer from considerable optical distortion due to the passage of light between two separate lens surfaces.Similarly in the prior art it is known how to manufacture non-corrective jump adjustment sun glasses- to fit the normal prescription glasses. sun glasses of -adjust by jump are both unattractive aesthetically and suffer from similar optical distortion. Also, the International Patent Application PCT / AU97 / 00188"Improved Single Vision Lenses", the applicants describe an optical lens element that includes a front and a rear surface, at least one surface that is continuous, and that forms a zone (Rx) of prescription and a peripheral temporal zone to provide a cover in the area of the temples, whose zones are mixed gently to avoid a prismatic jump from the Rx zone to the temporary zone. Although such lenses present a significant improvement, problems remain with respect to ease of fabrication, optical quality and mounting reliability, particularly for medium to high power lenses. Specifically, high power lenses tend to protrude against the temples of the user, requiring the use of a peripheral zone as described in that region for lenses having a corrective power beyond about -0000D. From extensive user testing, applicants have established that users enjoy the greater width of corrected vision provided by lenses of this type and report less enthusiasm regarding the use of peripheral extension that has no corrective power. For example, for "positive power lenses that have a corrective power beyond + 2.00D, the inner surface of the lens may crash" against the user's tabs unless the peripheral extension is used, again decreasing the user's experience. Regarding the - panoramic corrected vision.

Accordingly, it would be a significant basis in the art if lens constructions could be provided that avoided the problems of physical contact with the wearer, but which nevertheless provided a corrected view by approaching the full available field of human vision. Accordingly, an object of the present invention is to overcome, or at least alleviate, one or more of the difficulties and deficiencies relating to the prior art.

Accordingly, in a first aspect of the present invention there is provided an ophthalmic article that includes a first lens element having a front and rear surface; and a complementary lens element capable of carrying a prescription surface (Rx) having a front surface configured in such a way that it closely approaches at least a portion of the rear surface of the first lens element. In this embodiment, the complementary lens element provides at least a portion of the refractive power required by the user, and is configured such that the ophthalmic article remains substantially free of optical distortion and is aesthetically acceptable. As used herein, the term "lens element" refers to an ophthalmic lens or optics, a semi-finished lens, or a lens wafer that can be used in the formation of an ophthalmic product. The ophthalmic article can be in any suitable form. The item can be a pair of glasses. The item can be a pair of sunglasses. The first lens element can be a sun lens element or elements with dye, preferably fixed to a spectacle frame. The first lens element may exhibit a plane power or may provide positive or negative refractive power. The first lens element may include an extension in the temporal region. The complementary lens element may have a front surface complementary to the rear surface of the first lens element. In an alternative aspect of the present invention, there is provided an ophthalmic article that includes a first lens element capable of carrying a prescription surface (Rx); and a complementary lens element having a rear surface configured in such a way that it closely approaches at least a portion of the front surface of the first lens element. In this mode, the complementary lens element can function as a lens element for sun and / or can provide at least a portion of the refractive power of the article, ophthalmic, for example to improve the optical performance when driving at night.The complementary lens element has a rear surface configured of such - Thus, the ophthalmic article remains substantially free from optical distortion and is aesthetically acceptable. The first lens element may be a normal prescription lens element. the temporary region The complementary lens element can be a lens element of sun glasses with dye.The complementary lens element can also include an extension in the temporal region.The complementary lens element can exhibit a power of plane or may provide positive or negative refractive power, Accordingly, in a further aspect of the present invention, a fastener is provided. and lens element _ including a pair of lens element holders; fixing means for removably fixing the fastener of the lens element to a spectacle frame; and a pair of lens elements mounted on or in the lens element holders.

The fastener of the lens element according to this aspect of the present invention is adapted for use with any suitable spectacle frame, in particular a spectacle frame which carries sunglasses lenses, protective lenses or prescription lenses, or any combination thereof In a preferred aspect the lens element holder may be designed to fit by jumping behind the sunglasses lenses.

Accordingly, in a still further aspect of the present invention, glasses are provided which include a frame for spectacles, a cover element or sun glasses element with dye fixed to the frame; a fastener of the lens element including a pair of lens element holders; fixing means for optionally removable fastening of the lens element to the frame of the glasses; and a pair of optical lens elements mounted on or in the lens element holders. Applicants have discovered that by using a pair of optical lens elements to provide refractive power to the glasses, they present a significantly better appearance for the user and optical distortion significantly reduced between the lenses of the glasses and the lens wafers. The frame of the glasses used in the spectacles according to this aspect of the present invention can be of any suitable type. A conventional eyeglass frame - can also be used. A spectacle frame of the envelope type is preferred. Frames of the one-bar type and without borders can be used. The optical lens elements can be wafers of optical lenses. The pair of the optical lens elements can be a pair of optical lens wafers. The pair of optical lens elements used in the glasses according to this aspect of the present invention can be of any suitable type. A back lens element, preferably a back lens wafer formed from a polymeric optical material and capable of forming a prescription surface (Rx), may be used. A rear wafer lens is preferred which is adapted to utilize the full depth of the front surface of the sunscreen element element with dye. It has been found that a range of back-wafer elements of the "matrix" type of the Applicants (United States Patent 187505 granted to Applicants). The posterior lens elements can provide a refractive distance scale Rx of from about +2.00D to -2.00D with 0 to -2.00 cyl. Such a refractive power scale will provide suitable prescription lenses for approximately 50% of all writings. Desirably, the refractive power scale can be extended to at least about +2.50D to about -0.00D. Even more preferred is the "refractive power scale" which is from about + 3.50D to -4.00 D. The sun glasses element or elements with dye and the cover element (s) may include a single curved element or a pair of glasses, depending on the chosen style. The element or elements of "sun glasses with dye or the cover element or elements may exhibit plane power." A lens-plane curve of about 6 to 8 diopters (D) or more is preferred. The element or elements of sunglasses with dye can be fixed to the frame of the glasses in any conventional way As mentioned above, - "in" this aspect, the lens element holder can be designed to fit by jump behind the element or elements of glasses of sun with dye so that the lens element or elements approach the rear surface of the sun goggle element so closely as to be possible. Consequently, the curve of the front or coincident surface of the lens elements can be constant for all prescriptions, altering their posterior surfaces to provide both the nominal curve for the Rx correction and the atomic connections to compensate for the inclination and location of the deviation axis, as described by the Applicants in International Patent Application PCT / AU97 / 00188. In comparison, lenses of the prior art eyewear such as the applicant-commercially available in the form of finished lenses do not have ----- correction for the alignment or inclination _ of the deviation axis. In addition, both the front and rear surface curves vary according to the Rx that is provided. In general terms, the choice of front and back surface curves for the finished lenses of the prior art is such that their numerical average is of the order of 5.5 to 6.0 diopters, this being the design curve of the frameworks of conventional glasses. The supports for the lens element may be designed to surround the lens wafers-all or in part-to hold them in a position behind the sunscreen element with dye.

The lens elements can be fi xed to the lens element holder by mounting inside the lens wafer support frame, either a conventional shape or by using a series of tabs around the circumference of the wafer-supports, lens. The fixing means for removably fixing the fastener of the lens element to the frame of the glasses can be of any suitable type. The fastening means of the lens wafer fastener will vary with the nature of the selected spectacle frame. For example, the fastening means may be similar to those used in conventional jump adjustment lens elements. The fixing means can fix the lens wafer fastener to the circumference of the frame of the glasses and / or by using tabs or lugs close to the nasal part of the frame of the glasses.

In a preferred embodiment, the lens element holder may include a nasal piece adapted to receive and retain a pair of lens elements. The nasal piece can be adapted to be removably attached to the nasal part of the frame of the spectacles. The fastener of the lens element can accordingly include an optionally removable fastener (see Figure 21 below).

In a preferred additional embodiment, the lens attaching means for releasably securing the lens element fastener to the lens frame may include a detent member or members adapted to receive and retain a lens element in the lens. region of your temporal limb. The member or each retainer member may be positioned adjacent to the temporary hinge of the goggle frame. Each detent member may take the form of a detent groove adapted to receive the temporary edge of a lens element. The detent slot may be open at the upper end thereof to allow insertion and removal of the lens element. ._, _ - The retainer groove may have a shape complementary to the shape of the temporary edge of the lens element. In an alternative aspect of the present invention, the fastener of the lens element, according to the present invention, can be designed to adjust a frame of glasses against sun glasses. Accordingly, in a further aspect of the present invention, "glasses" are provided which include a spectacle frame, a pair of ophthalmic lenses capable of carrying a prescription surface (Rx); a fastener of the lens element including a support or supports of the lens element, fixation means to fix - optionally removable - the fastener of the lens element to the frame of the glasses, and an element or elements of optical lens on --- or on the lens element holder. In this embodiment, the fixing means may be designed to removably fix the fastener of the lens element to the front of the frame of the glasses. Accordingly, in this aspect, the optical lens element or element can be an optical lens pair, preferably a pair of front lens wafers. The front lens element or elements may be of the flat type The optical element or elements may be of the envelope type The front lens elements or elements may be provided in a range of front surface curves from about 2.00 D to 9.00D so that your surface or back curves can be as close as possible to the curve of the sun lenses.This can be contrasted with the curve of the base design -6.00D of the lenses of conventional glasses. The 'variety of lens elements that provide a curve Fixed coincidence, allows the lens elements to be aligned more closely to the design of the parasol type. As a result, the fastener of the lens element can be more compact and fashionable, as well as suffer minimally from the entry of light between the front lens element and the rear lens lenses. In one aspect The alternative embodiment of the present invention provides an optical lens element that can be mounted on a frame suitable for glasses, for example of the wraparound or cover type. Accordingly, in this aspect of the present invention there is provided an optical lens element including a front and rear surface, at least one surface being continuous, and forming a prescription zone (Rx) and optionally a peripheral zone, optionally without prescription, temporary; at least one surface exhibiting a change in the base curve through a change in the user's vision; the front and / or rear surface supports a correction. of surface to at least partially adjust the optical errors. The optical lens element according to this aspect of the present invention can be mounted directly on a spectacle frame, for example of the wraparound type or cover. When mounted, the optical lens element can be temporarily rotated about a vertical axis through the optical axis thereof ("tilt"), or translated so that the line of sight remains parallel to the optical axis of the optical axis. lens ("inflection"), or a combination of both tilt and inflection as described below. The optical lens element according to this aspect of the present invention can provide prescription correction (Rx) on the scale of -6.0D a_ + 6.0D. In a preferred aspect, the front surface of the. The optical lens element exhibits a change of the base curve through the user's field of view, preferably being the base curves mixed gently to avoid a prism jump in the Rx area. The base curve from the limit nasal to the optical center - may be relatively low, such as from about 0. OD to about 6D. The base curve from the optical center to the temporal limit can, in contrast, be a high base curve, for example around 6.Q-D or, above, preferably approximately 12. OD to 18. OD. Preferably the surface or front-and-rear surfaces of the optical lens element includes a spherical composite design to provide the desired prescription (Rx) in the prescription area. More preferably, this prescription zone will extend through the entire opening of the frames of the glasses that are being used. It will be understood that an advantage of the present invention is that a front curve can be used through a prescription power scale. This provides an improvement in the ease of fabrication of the optical lens elements, allows a wide scale of prescriptions that can be adjusted to an individual frame design and helps in the reduction of inventories. In a further preferred aspect, the optical lens element in the region from the nasal boundary to the optical center can generally be of the meniscus type. Alternatively, the nasal region of the optical lens element may be biconvex shaped. The biconvex shape is preferred, in particular for high power lenses, due to its ease of assembly and aesthetics ----- improved for the user. As used herein, the term "optical-lens element" means an optical or ophthalmic lens, a semi-finished lens, or a lens formed from a pair of lens wafers that can be used in the formation of a lens product. contact lenses.

In a preferred form, the front surface exhibits a change of the base curve through the user's field of view, the base curves being mixed smoothly to avoid a prismatic jump in the Rx zone. The ophthalmic lens element can be a negative or positive refractive power lens or it can be a flat lens. When the ophthalmic lens element includes "an ophthalmic lens wafer, the peripheral time zone may be provided by the front wafer.The peripheral time zone may be at least in part generally of a toric form. at least in part generally flat The peripheral temporal zone may itself form an extension of the prescription zone or may be a non-prescription zone In an alternative or additional aspect, the peripheral temporal zone may be modified to allow control of light within the area. "The lens element may be rotated temporarily about a vertical axis through the optical center thereof or the optical axis may be off-centered with respect to the geometric axis, or the lens element it can either be rotated or decentered.

It will be understood that the peripheral time zone, for a typical sun lens element of the envelope type, can for example be extended to approximately 10 to 25mm. In a further aspect of the present invention, there is provided an optical lens element that provides prescription correction (Rx) generally on the scale of -6. OD to +6. OD where the front surface "can be mounted on a curved frame of constant design despite the Rx, with the frame curves of 5.0D and" above "; ~ and the posterior surface provides a good space from the temples or eyelashes of the eye; at least one surface exhibits a change of the base curve through the user's field of vision. - The ophthalmic lens element can be part of a series of lens elements, for example of the type described in Patent Application - International PCT / EP97 / 00105, the full disclosure of which is incorporated herein by reference. Such a series is particularly preferred when the curvature of the front surface of the element of. Optical lens remains constant on_a power scale. ----- Preferably the front surface can be mounted on a curved frame of constant design between -8. OD to 9.0D.

More preferably, the front surface of the lens element has a composite-high curve that extends from the temporal to the nasal boundaries, but the vertical curve is 6.0D or less. Means "that such vertical curves permit the lenses final prescription, preferably beveled lenses, adapted to the shape of the wearer's face and so are placed closely in a form of wraparound type (a design called" geometrically toric "for which the vertical curve of the back surface is selected to maintain the desired power or Rx corr-ección- provided by the lens This can be distinguished from a "optically toric" design wherein conventional -.. a surface is rotationally symmetrical and the other is configured to provide spherical components and cylindrical Rx user without regard to the facial shape of a user). Alternatively the optical elements can be adapted for mounting on a frame-type cover. accordingly in a further aspect of the present invention provides a unitary optical lens including a pair of optical lens elements, each Lens element provides prescription correction (Rx) generally on-scale from -6.0D to + 6.0D with 0 to +3 cyl wherein the front surface can be mounted on a curved frame of constant design despite the Rx, such frame curves being 5.0D and more; and the posterior surface provides a good space from the temples or eyelashes, at least one surface exhibits a change in the base curve through the user's field of vision. The optical lens element according to the present invention, when mounted in an eyeglass frame, you can haceree rotated temporally about a vertical ee through the optical center thereof or may be offset Accordingly, in a further aspect of the present invention, there is provided an optical lens element adapted for mounting on a shell of the shell type or shell type, such that the lens element is rotated temporarily about a vertical axis through the optical center thereof, the lens element includes a front and rear surface that can form a prescription zone (Rx), and a peripheral time zone; at least one surface e-khibe a change of the base curve through the user's field of vision, the front surface _ and / or rear carry a surface correction to at least partially adjust the optical errors including astigmatism and average power errors. In this modality, although the optical axes continue to intersect in the line of sight of the user, a number of optical effects and errors are therefore introduced, as discussed below, however, through the selection, adequate the combination of the front and / or rear surface, the optical errors can be reduced or eliminated. Accordingly, in an additional aspect of the present invention there is provided an optical lens element adapted for mounting in a shell of the shell type or the shell type. of cover, the lens element includes a front and rear surface that can form a prescription zone (Rx), and a peripheral temporal zone, at least one surface exhibits a change of the base curve through the field of view of the user, wherein the optical axis is offset from the geometric axis of the lens element to provide prismatic correction, the front and / or rear surface carries A surface correction for at least partially. adjust errors that include errors- astigmatic and average power. Applicants have discovered that it is possible to produce an optical lens element, preferably a sun lens element, which includes a prescription zone (Rx) and which is off-center to provide a prismatic correction. Preferably the front and / or rear surface of the optical lens element further includes a surface correction to at least partially adjust the prismatic errors, for example, introduced by virtue of the inclination or inflection of the lens required for example to "suit the style of the frame." Illustrative optical effects and errors are detailed in International Patent Application PCT / AU97 / 00188 to which reference was made. in the above. One or more of the following corrections can be entered to reduce the errors described: Medium Power Correction The curvature of the front and / or rear surface can be adjusted to account for the change in average power that results from the rotation of the lens, the degree of correction depending on a balance of the power error on the axis tolerable by the user and the reduction of the axis deviation power errors that can not be accommodated. Therefore a complete power correction for the change introduced in "the power to correct the errors on the axis can be applied or ----" s "a partial correction when considering the error" of power of the axis deviated. Astigmatic Error Correction The frontal and / or posterior surface can at least in part have an optically shaped torus to correct the astigmatic error that results from the rotation of the lens discussed above.The degree of correction can completely correct the - astigmatism introduced due to lens rotation or can be partially corrected depending on the application A partial correction can be applied to achieve an -stigmatic error on the tolerable axis in order to reduce off-axis astigmatic errors Prismatic correction The optical center It can be changed horizontally to compensate for the prism induced by lens rotation. the prescribed prism during specification or formation of the design surface, taking into account any deviation or deliberate de-centering of the lens element to adapt the geometric shape of the frame. - Additional Considerations These corrections include, but are not limited to, the inclination of the patoscopic lens, the variation in the types of frames for lenses, aesthetic requirements and center with respect to the average pupil, with respect to the "lens distances depending on of the types of shape and lens and the frames. Prismatic Disparity Out of Axis To correct prismatic disparity outside ie. The lens may include a non-spherical surface on either the front or back surfaces, or both. Imperfect Surface Sphere Formation The imperfect sphere formation of either the front or back surface can be used to correct off-axis errors that include errors introduced due to skew and / or selection of base curves. Such off-axis error can include power and astigmatic error and prismatic disparity. It will be recognized, however, that the optical lens elements described above are generally only suitable for prescriptions where "zero or very low cylinder corrections are required.

Accordingly, the applicants have designed an optical lens element of the type described, but modified in such a way as to allow correction of the prescription (Rx) generally on the scale of -6 --- 0 D to + 6.-0 D with 0 to +3 cyl. Accordingly, in an additional aspect of the present invention there is provided an ophthalmic article that includes a first lens element having a front and rear surface; and a complementary lens element that can carry a prescription surface (Rx) having a front surface configured in such a way that it closely approximates at least a portion of the "posterior" surface of the first lens element; it is generally rotationally symmetrical about the optical center of the lens It will be understood that given the rotating symmetry of the optical lens element the cylinder can simply be introduced to the desired degree In a further aspect of the present invention, a lens element is provided optic that provides prescription correction (Rx) generally on the scale of -6.0 D to +6.0 D with 0 to +3 cyl; wherein the front surface can be mounted on a curved frame of constant design regardless of the Rx, such frame being 5.0 D and more; and the posterior surface provides a good space from the temples or eyelashes of the eye; at least one surface exhibits a change of the base curve through the user's field of vision. The ophthalmic lens element can be part of a series of lens elements, for example of the type described in the International Patent Application PCT / EP97 / 00105, the complete description of which is incorporated herein by reference. Such a series is particularly preferred when the shape of the front surface of the optical lens element is held constant over a range of power. Preferably the front surface can be mounted on a curved frame of constant design from 8.0 D to 9.0 D. More preferably, the front surface of the lens element has rotational symmetry about a design axis (which is geometrically toroidal ) with a high surface curve extending towards the temporal limits and a lower curve in the central optical zone, it will be understood that the effect of "the lower surface curve in the central optical zone of the Lens allows the desired wrap around the user's shape-from prescribing without the appearance of saltonee eyes. In addition, the final prescription lenses, preferably bevelled lenses, can be adapted to the shape of the user's face and thus be positioned "tightly against the user's facial shape." - Alternatively, the optical lens elements can be adapted for mounting in a shell of the type of cover. Accordingly, in a further aspect of the present invention there is provided a unitary optical lens that includes a pair of optical lens elements, each lens element providing a "prescription correction" (Rx) generally on the scale of -6.0 D to +6.0 D with 0 to +3 cyl, where the front surface can be mounted "on a curved frame of constant design despite the Rx, such frame curves being 5.0 D and more, and the rear surface provides a good space From the temples or eyelashes of the eye, at least one surface exhibits a change of the base curve through the user's field of view in both horizontal and vertical directions.The optical lens element according to the present invention can , when mounted on an eyeglass frame, rotate temporarily around an axis vertical through the optical center of the same or be --- off center. Accordingly, in a further aspect of the present invention, there is provided an optical lens element adapted for mounting on a shell or shell type frame, such that the lens element is rotated --- temporarily around a vertical axis through the optical center thereof, the lens element includes a front and rear surface which can form a prescription zone (Rx); and a peripheral temporal zone; at least one surface exhibits a change of the base curve through the user's field of view in the ---- vertical and horizontal directions; the front surface "and / or posterior carry a surface correction to at least partially adjust the optical errors that include medium power errors, and astigmatic errors.In this mode, the surface corrections directed to the elimination" of the error "Optical introduced by the horizontal inclination or the inflection of the optical lens elements are distributed in a rotationally symmetrical way, thus compromising to a certain grade the quality of vision outside of the axes in a vertical sense. Accordingly, in a further aspect of the present invention there is provided an unfinished optical lens element adapted for mounting in a shell or shell type frame, wherein a front surface may form a prescription zone (Rx); and a peripheral temporal zone; the front surface exhibits a change of the base curve through the user's field of view, and the front surface has shape corrections of the optically toric character to correct the inclination and inflection of the lens, mainly in the horizontal direction. The back surface required to complete the The Rx of the user has spherical and cylindrical components that comprise a change in the base curve of the user's field of vision in both the horizontal and vertical directions. Such complex surfaces can not be created by conventional ophthalmic lens processing equipment, however they can be generated by the surface forming equipment of the state of the art such as the "Ultralab" unit of Micro Optics Inc. This equipment produces a precise surface shape by cutting a computer generated file. The final optical finish can be achieved by applying an optical resin surface coating that matches the de-refractive index of. the adjacent lens. The errors that can be created by polishing the generated surface are thereby avoided or at least substantially reduced. The front surface of this semi-finished optical lens element has a precise orientation which corresponds to the horizontal plane in which the inclination and inflection may occur. Therefore it can carry other optical characteristics that require precise orientation with respect to the vertical and horizontal directions. Examples of these are the addition of multifocal power for near or intermediate visual distances (both conventional segment and progressive addition type lenses), polarizing filters or aesthetic mirror or mirror treatment. Consequently, in an additional aspect of The present invention provides a semi-finished optical lens element adapted for mounting in a shell of the shell or shell type, wherein the front surface can form a prescription wave (Rx), and a peripheral temporal zone; the front surface exhibits a change in the base curve through the user's change of vision; it has optical shape corrections to correct the inclination and inflection of the lens in the horizontal direction, and includes a secondary optical feature that requires the precise orientation of a finished prescription lens with respect to the vertical or horizontal directions. The secondary optical characteristics may be selected from one or more of the group including multifocal correction, progressive power addition, light polarization and the like. In a preferred aspect of the present invention the ophthalmic lens element can be formed as a sheet of a front and rear lens element. Accordingly, in a preferred aspect of the present invention, there is provided a laminated optical article adapted for mounting in a shell or shell type enclosure that includes a front lens element; a complementarily rear lens element, the front and / or back surfaces of the article, optical films can form a prescription zone (Rx); at least one surface exhibits a change of the base curve through the user's field of view; the front and / or rear surface carries a correction - to at least partially adjust - errors that include average power and astigmatic errors; the front and / or rear lens element includes a peripheral time zone. Desirably at least the front surface of the front lens exhibits a change of the base curve through the user's field of view and optionally includes a secondary optical feature as described above. - It will be understood - in this embodiment, that inventories can be reduced by providing an individual front lens element for a scale of complementary back-elements. Likewise, the need to use the most modern lens finishing techniques is alleviated, for example to complete an Rx lens from a semi-finished extension. It will be further understood that any described feature included through the element. The front lens can also be included by the front lens element and vice versa. - - In a further preferred embodiment, in order to allow for cylindrical correction, the surfaces The matching of the front and rear lens elements can generally be rotationally symmetrical around their respective geometric centers. As discussed in the foregoing, the sheet article can be made-temporarily rotated about a vertical axis through the optical center thereof, or the optical axis may be off-center with respect to the geometric axis, or the lens element can either rotate or be off center. Accordingly, in a preferred embodiment of this aspect of the present invention there is provided a laminated optical article adapted for mounting on a shell or shell type frame, such that the lens element is temporarily rotated about a vertical axis a - through the optical center thereof, including a front lens element; a rear lens element - complementary, the front and rear surface of the optical article - in the sheets can form a prescription zone (Rx); at least one surface exhibits a change in the base shape through the user's field of vision; the front and / or rear surface have a correction to at least partially adjust for errors that include astigmatic and medium power errors; the front and rear lens element optionally includes a peripheral temporal zone, and / or a secondary optical feature that requires orientation It requires a finished prescription lens with respect to the vertical or horizontal directions. In a preferred embodiment, the front lens element can generally be flat. The corresponding front lens element can -include a lens element and negative or positive power. If desired, there may be a distribution of the distance power and the cylinder between the front and rear lens elements. Alternatively, the rear lens element may be relatively thick, the optical article in sheets forming a semi-finished lens. Desirably, sheeting of such an article may allow the introduction of optical characteristics such as polarization with respect to light, mirrors or photochromicity associated with the intermediate layer region. The region of the intermediate layer is also suitable for housing holographic, electrocrystalline or optical liquid crystal structures. In an alternative or additional aspect, the lens element can be modified to allow light control within the peripheral time zone. Desirably, the peripheral temporal zone can be modified so that no images are created in the temporal vision.

The peripheral time zone of the optical lens element according to the present invention can be constructed to maximize aesthetic appearance. Ideally, the peripheral time zone should show little difference or no optical difference from the rest of the front surface of the ophthalmic lens element. For example, when the prescription Rx surface of the ophthalmic lens is a negative Rx lens, the temporal extension can -exhibit a zero-reflection power or a positive reflection power. The temporal extension can be tapered in cross section to maximize aesthetic acceptability. Accordingly, in a preferred aspect the curvature of the front surface is modified in the peripheral time zone to substantially correspond to the curvature of the rear surface thereof. It will be extended that the peripheral temporal zone thus formed is a substantially planar extension. The peripheral temporal zone can be treated with any suitable coatings to "maximize the aesthetic appearance of the front surface thereof.

The front surface of the lens element in this mode may be of generally circular transvereal cross section.

The back surface of the lens element can generally be of conical cross-section in the peripheral time zone, thus providing a generally planar temporal cross-section. As explained above, the lens element can be modified to allow light control within the peripheral temporal zone. The reflected color of a lens for eol glasses is mainly a function of the dyes on the front surface of the lens. A mirror coating can be applied to the front surface of the lens so that the combination of the reflections of the front and rear surface achieve a mirror-like intensity and the color sense of the lens (dye). Alternatively, or in addition, a dye coating or dye layer may be provided on the back surface of the lens. It can alter both the intensity and the spectral character of the transmitted and reflected rays that interact with the region on the inked side of the lens. In an additional option, the front or rear (preferably the rear) surface may be frosted so that the transmitted and reflected light diffuses. That is, no images are formed by the light that enters the lens peripherally. The frosty part of the lens-- it is visually opaque (translucent) to the user. For others The lens will reflect the color with dye from its front surface against a shadow from the frosty part of the back surface. Preferably the posterior surface may include a mirror coating located from which the reflection is a matte finish. The peripheral temporal zone can be treated in a number of ways so that it does not create images - in peripheral vision, regardless of the optical design. The most direct methods simply prevent a perceptible intensity of the focused light from passing through by blocking it with any of a combination of: * Rear surface gradient mirror * Rear surface gradient (black) - * Rear surface shade The coating The mirror can be introduced using conventional techniques, for example vacuum deposition of metal film on a finished lens. A chemical solution of a pristine metal layer can be deposited on part of a cast mold and subsequently, a lens is emptied against that mold. A metallic mirror formed in this way can transmit enough light to form any annoying images while reflecting a soft matte finish in copper, nickel or any selected metal.

Alternatively, or in addition, the temporal extension may include one or more of the following: • Reflective holographic film: polymer sheet with mirror, for example approximately 0.5 mm thick giving patterns of reflected color -.various bright color. • Light control film: for example, polycarbonate film, for example 0.8 mm thick, which limits the transmission of light to a narrow angular band. • Reflective film: for example Mylar's 0. 025 mm thick, 10% transmission / 90% reflection • Liquid crystal film: for example polymeric sheet - 0.20 mm thick that changes the color - along the entire spectrum with the variable temperature. Ophthalmic lenses can be formulated from any suitable material. A polymeric material can be used. The polymeric material can be of any suitable type. The polymeric material may include a thermoplastic or thermoset material. A material of the diallyl glycol carbonate type can be used. The polymer article can be formed from crosslinkable polymeric casting compositions, for example as described in Applicants' United States Patent 4,912,155, United States Patent Application No. 07 / 781,392, patent applications.

Australian Patent Nos. 50581/93 and 50582/93, and European Patent Specification 453159A2, the disclosures of which are hereby incorporated by reference herein in their entirety. Such crosslinkable polymeric casting compositions may include a diacrylate or dimethacrylate monomer (such as polyalkylene glycol diacrylate or dimethacrylate or a bisphenol florendiacrylate or dimethacrylate) and a polymerizable comonomer, for example methacrylates, acrylates, vinyls, vinyl ethers, aromatic aryl olefins, ethers, polythiols and the like, for example in the Australian patent application 81216787, the entire description of which is incorporated herein by reference, the Applicant discloses a crosslinkable coating composition that includes at least polyoxyalkylene glycol diacrylate or dimethacrylate and at least one polyfunctional unsaturated crosslinker, and also Australian Patent Application 81216/87. whose full description is incorporated in the present by reference, the applicant describes a polyoxyalkylene glycol diacrylate or dimethacrylate; a monomer which mulls a recurring unit derived from at least one monomer of bisphenol of polymerizable radical capable of forming a homopolymer having a high reflection index or more than 1.55; and a urethane monomer that has 2 to 6 terminal groups selected from the group comprising acrylic and methacrylic groups. Such polymer formulations are cured with ultraviolet rays or cured by a combination of heat treatment and ultraviolet rays. The scale of optical lenses sold under commercial designations. "Spectralite" of the applicants have been found adequate. The polymeric material can include a dye, preferably a photocromatic dye, which can, for example, be added to the formulation of the monomer used to produce the polymeric material. The variation in depth in color intensity can be minimized by incorporating a pigment or ink to one or more layers of the optical article. The ophthalmic lens element according to the present invention may further include normal additional coatings for the front or back surface including electrochromic coatings. The surface of the front lens may include an anti-reflective coating (AR-), for example of the type described in U.S. Patent 5,704,692 issued to applicants, the entire disclosure of which is incorporated herein by reference. - The front lens surface may include an abrasion resistant coating for example of the type described in United States Patent 4, 954,591 granted to the applicants, whose complete description is incorporated herein by reference. In a particularly preferred form, the ophthalmic sheet article may include an inner layer that provides the desired optical properties of the. type described in the international patent application PCT / AU96 / 00805 granted to the applicants, the complete description of which is incorporated herein by reference. The front and back surfaces may further include one or more additions conventionally used in the coating compositions as inhibitors, dyes including thermochromatic and photochromic dyes, for example as described in the foregoing, polarizing agents, lightning stabilizers. ultraviolet and materials capable of modifying the reflection index. In a further preferred aspect of the present invention the optical lens element can be modified to accentuate the facial shape in the nasal region. Accordingly, the optical lens element may include a region of reduced or opposite curvature defining a region that accentuates the nasal.

In a most preferred form, the lens element can be directed towards the nose bridge and back toward the temples. In a further aspect of the present invention goggles are provided which include a shell frame of the wraparound type adapted to receive a pair of optical lenses so that each element is rotated about a vertical axis through the optical center thereof; and a pair of optical lens elements, each lens element includes a front and / or rear surface. which can form a prescription surface (Rx); and optionally a peripheral temporal zone; at least one surface exhibits a change of the base curve through the user's field of vision; the front surface "" and / or rear "" carries a surface correction to at least partially adjust the errors including astigmatic and medium power errors. The front and rear surface of the optical lens elements can be of the types described above. The optical lens element may be off center. The frame of the glasses according to this aspect of the present invention can be of any suitable type. The frame of the glasses can allow the adjustment of the distance between the pupils for example through the fixation of a lens to the frame supports. May use frames without rims and the type of bar at the temples. Ophthalmic lenses mounted within the frame can be formed from a semi-finished lens or a front and rear lens wafer as described above. Ophthalmic lenses can carry a prescription surface of negative or positive power. The forward reach of the lens in the nasal region can be used at least in part to provide protection to the user's nose against physical impact or radiation damage due to the ultraviolet "component of sunlight, for example. For this purpose they desirably bend forward in the nasal region with respect to the horizontal base of 4.0 to 8.0 of op- its so that the combination of the surface of the lens and the nasal part of the frame of sunglasses or the unitary lens protects substantially all of the nose of the user without obey the front vieux field In a further aspect of the present invention there is provided a method for designing an optical lens element adapted for mounting on a shell, shell or cover type whose method provides a mathematical or numerical representation of a surface of an optical lens element that includes a first section designed to provide desired (Rx) in the prescription zone; and add to it a mathematical or numerical representation of a an increased base curve overlap section so that the entire lens surface exhibits a change in the base curve through the user's field of view thereby forming a second, increased base curve lens section; rotating and / or decentering the representation of the surface of the lens to allow assembly in a "suitable frame" and modify the representation of the lens surface to at least partially adjust the errors that include astigmatic - and power It will be understood that virtually any sun glasses that can be polarized to an Rx can be converted to "a prescription product through the lens wafer holder or the optical lens member according to the present invention. This may offer one or more practical advantages: 1) Rapid supply of Rx in a spectacle store: from the sun, either from the inventory of the lens element holder (to average PD) or by cutting, flanging and adjusting the wafers or lenses in the store of gafae for sun. 2) The option for the user of contact laws to use basic products for the sun with or without their contact glasses. 3) The option to be able to choose the colors or mirrors of the sunglasses in a common frame style and convert any of these to Rx to taste. - 4) The option to convert branded sun products such as Serengeti and Revo to Rx without the delay of ordering them from the manufacturer. - 5) The products for "sun that Jucen.y have the sun protection function-, but that also has RX 6) Better optics due to the base curves of the upper lens.The flattening of the curvae of loe etyilos Ophthalmic compromises optics, especially off-axis. 7) Minimal problems with double reflections due to the close coincidence of the curve of the flat lens and the front curve of the RX lens. In a further preferred aspect, the front surface of the lens element or wafer may be of the progressive type. A lens element of the type described in the international patent application PCT / AU95 / 00695 granted to applicants, which provides improved near vision along with reasonable intermediate vision can be used. Such a lens is particularly suitable for near vision tasks such as reading, using computers and the like.

The full description of the international patent application PCT / AU95 / 00695 is hereby incorporated by reference in its entirety. The present invention will now be described more extensively with reference to the appended figures and examples. It will be understood, however, that the following description is illustrative only and should not be taken in any form as a restriction on the generality of the invention described above. EXAMPLE 1 Figure 1 Figure 1 illustrates a typical flat lens lens element, approximately to scale. A is the front view of the lens before the user's right eye, the point marked on the lens being the position-- typical of the user's pupil behind the sun lens. B is a vertical section on the visual axis and C is a horizontal section on the visual axis. The front lens is flat-curved with 6 diopters and its optical axis coincides with the visual axis of the user. The complementary lens element behind the plane is a rear element or rear wafer lens with a front curve equal to 6 Diopters to be total refractive powers. The example is a lens with positive RX power of 2 D (Diopters). Figure 2 Figure 2 illustrates a configuration similar to Figure 1 wherein the complementary lens element - is an Rx lens of the typical lot used in industry, the front curve varies according to the Rx of the chosen lens. The example is a +2 D lens with a 7D front curve. Figure 3 Figure 3 illustrates a configuration similar to Figure 1 where the complementary lens element is one. Typical batch Rx lens used in industry, the curvafrontal varies according to the Rx of the chosen lens. The example is a + 2D lens with an 8D front curve. Figure 4 Figure 4 illustrates the reflection of a beam of light B between the front surface of a complementary lens 2 and the back surface of a flat lens 1. The angle of deflection of the B rays when it enters ^ The posterior lens compared to the original direction A of the rays is given by? = 2 [a-ß] where cos a = (rl / 2y) _y cos D = ( r2 / 2 { y + x). EXAMPLE 2 Figure 5 Figure 5 illustrates a lens element for glasses. Typical flat sun, approximately to scale. A is the front view of the lens before the right eye of the user, the point marked on the lens and the typical position of the user's pupil behind the sun lens. B is a vertical section in the visual axis and C is a horizontal section in the visual axis. The "front lens is 6-diopter curve flat and its optical axis coincides with the visual axis of the user." The complementary lens element behind the plane is a rear-facing or wafer-shaped lens with a front curve equal to 6 Diopters to be "total the powers of refraction. The example is a lens with RX power of 2 D (Diopters). Figure 6 Figure - 6 illustrates- a configuration similar to the Figure 5 where the lens element. Complementary is a Rx lens of the typical lot used in the industry, the front curve varies according to the Rx of the chosen lens. The example is a -2 D lens with a 5D front curve. Figure 7 Figure 7 illustrates a configuration similar to Figure 5 in "where the complementary lens element is a batch Rx lens, typical used in industry, the front curve varies according to the Rx of the chosen lens. is a -2D lens with 4D front curve Figure 8 Figure 8 illustrates a typical flat lens element, approximately at scale, A. is the front view of the lens before the right eye of the user, the point marked on the lens being the typical position of the pupil of the user behind the sun lens. Bl and B2 are vertical section in the visual axis and C is a horizontal section in the visual axis. The lens is 6-diopter curve flat. The geometric axis of the lens coincides with-- the visual axis in the user in section Bl, but not in B2 or in horizontal section C. In these, the visual axis is displaced (up for B2 and inward for C) ) in order to increase the proximity of the curve of the lens to the shape of the user's face. Figure 9 Figure 9 illustrates a lens of the batch of spherical design with plus Rx of + 2D placed behind the lens of one of the lens of Figure 8. In order to get through the full aperture of the flat lens and also of Adjust tightly against the back surface of the flat lens on the side of the temple, the Rx lens must have a high front surface curvature (approximately 9 D). This creates the displacement of the front vertex of the lens Rx from the posterior apex of the planar lens and also a significant physical return of the nasal boundary of the lens to the face of the ueno, as seen in sections B and c. Figure 10 In Figure 10, sections B3 and C2 illustrate a complementary lens element + 2D x alternative that of Figure 9. Using spherical curves again, the result is a substantial mismatch between the front planar lens. It is desired that the secondary lens conforms closely with the rear surface of the plane through the entire area of the front lens. One is designed. lens of the section Cl with a central region of curvature, low posed by the regions relatively high curvature while providing power-of constant refraction through all, so that the surface used are closely matched and there is minimum vertex displacement and the nasal positions of the lens surface. For sunglasses of configuration Bl, the element of the posterior lens or the posterior wafer may have orthogonal simple spherical curves with respect to horizontal restriction Cl. For the configuration B2 where, the geometric axis is located above the visual axis, the orthogonal curves to complete the rear lens element should be of a similar (non-spherical) mixed construction with respect to the horizontal section Figure 11 The lenses of Bl and B2 of Figure 11 illustrate an additional alternative approach --- to use curves of a lens - a sphere to fit a complementary lens element behind a flat lens that curves downwards from the front (B2 and B3) .The spherical element of plus Rx + 2D has a forward curve of approximately 10D and reaching down to provide correction to a --- 40 ° downward view. This has the physical disadvantage "of creating a lens boundary that crosses the lens aperture of flat sunglasses, making the edge of the lens visible to the user and to others, and to itself creates a limit of the lens not supported close to the cheeks, while the limit of downward vision for human vision is approximately 40 °, the design is otherwise acceptable., the composite (non-spherical) lens of B2 can be made flat at greater angles above the downward gaze without visual loss while retaining the object of maintaining a complementary configuration of the lens reaching through the entire aperture of the lens. the flat lens. of the sunglasses. Figure 12 Figure 12 illustrates lens elements, complementary power of Rx +4 D that fit both the vertical configurations for the flat lens (Bl and B2), in both cases, the design of the vertical curves include a. Integral flat extension of the Rx lens to look down greater than 40 °. Similarly, the horizontal design has a flat extension beyond 40 ° toward the temples. The field of correction Rx given by these lenses is typical of the modern wardrobe in regard to lenses. The enveloping effect of_ glasses . Sun to which complementary lenses conform, provide protection from light, wind, dust and other possible intrusive elements near the temples. EXAMPLE 4 Figure 13 Figure 13 illustrates a bifold design batch lens with Rx of -2D positioned behind the planar lens as in the. Figure 9. In order to attract the full aperture of the flat lens and also to fit closely against the back surface of the flat lens on the side of the lens, the Rx lens must have a high front surface curvature (approximately 11 cm). This creates the displacement of the frontal apex of .1-a lens, Rx from the posterior vertex of the planar lens and also a significant physical return of the limit of the lens to the face of the lens, as observed- " in sections Bl and B2 Figure 14 Figure 14 illustrates complementary lens elements of power of -2D Rx that fit both vertical configurations for flat lenses (Bl and B2), in both cases, the design of the vertical curves include an integral flat extension of the Rx lens for downward gaze greater than 50 °, similarly the horizontal design has a flat extension beyond 50 ° towards the temples. The correction field Rx -given by these lenses is typical of modern gafae. The wraparound effect of the sunglasses, to which the secondary lenses are made, opening to protection from light, wind, dust, and other possible intrusive elements near the lens. EXAMPLE 5 Figure 15 Figure 15 illustrates elements of lens-complementary +/- 2D RX placed behind the lenses for 8D curve flat sunglasses. The upper curves dictate the use of mixed non-spherical curved lenses with integral flat extension. EXAMPLE 6 Figure 16 Figure 16 illustrates a- "complementary lens element placed in front of a prescription lens in a pair of 6 D_ nominally front-face goggles. Such lenses may have flat tint to provide comfort to sunglasses or "may be slightly negative Rx lenses eg -0.25 to -0.50 D, to assist accurate distance vision for sports or to -conduct from In the latter case, the lenses may have dye for special lighting requirements.Alternatively, they can be clear lens.

Flat lenses can be adjusted with minimal care to align with the optical axis as long as the "lens curves are not 8 D or less. Negative prescription glasses must be adjusted precisely to align their optical axis parallel to its axis. visualization of the user, but they should be deviated if the frame design requires it .. EXAMPLE 6 Figure 17 _ Figure 17 illustrates prescription wrap-around lens or Rx of - + / - 2D that have mixed curvatures (not spherical). , the design of the curves of the vertical lens includes an integral flat extension of Rx lenses for downward gaze greater than 40 °, similarly, the horizontal design has a flat extension beyond 40 ° towards the temples. Rx correction, given by these lenses is typical of modern glasses but also provide the enveloping effect typical of sunglasses that protect the user from various elements even near the temples. nominal rva of the horizontal section ee of 12D, existing primarily in the flat temporal extension. The Rx part of the lens has curves of 6D or less in the nasal regions horizontally and 8D or less vertically.

These curves are familiar in the industry and are recommended for common standards and accuracy in eyeglass frames that fit the user's face (for distance between the pupils and correct height). greater in the adjustment. The horizontal curvature from the forward vision towards the temporal limit is on the scale from 14 to 18 D approximately, presenting the need to ensure that the horizontal position of these Rx lenses can be fixed and maintained accurately. For lenses mounted within a typical frame the required accuracy can be achieved without unnecessary effort provided the location of the. pupil is measured with respect to the position adopted by the nose pad of the frame of the glasses on the face of the user. Although it is usually assumed that the location of the pupils of the nasal septum is symmetric versus rarely, it is ae. Figure 18 Figure 18 illustrates complementary lens elements having flat sunglasses placed in front of the enveloping lens Rx of Figure 17. The flat lens has nominal curves of 10 D horizontally and 8 D vertically. The geometrical and optical axes of the planes coincide vertically. They are parallel but are offset horizontally (approximately 5 mm). Design can provide a prism or adjust the optical axis of the plane horizontally to rotate the correct alignment. However, - the degree of misalignment of the axis is similar to the variation in the size of the pupil so that the optical error introduced by the planes should be minimal Figure 19 Figure 19_ illustrates the Rx lenses of the Figure 17 with complementary lens elements of slightly negative power, ie of the order of -0.25 to 0.50D placed in front of the Rx lenses.- Such lenses can be used as a visual aid during the night, correcting the condition known as nocturnal myopia. , they are applicable for precise correction at long distance during the day, since the practice of prescription lenses corrects in fact the closest distance vision, thus giving the patient the excessive positive power in their Rx lenses. These lens lines are aligned correctly with respect to the visual axis of the user.This requires a discernible change of both the radius and the center of curvature at the boundary of the field. temporal visual (Cl and C2) in order that the lenses fit a full scale of Rx and extend through the entire opening of the Rx lenses from behind. The lens designs provide close proximity of Rx and complementary lenses in the nasal and temporal boundaries of both lens sets.

EXAMPLE 8 Figure 20 Figure 20 illustrates a wraparound viewer of the type common in the industry of sun glasses that do not carry prescription The outer line of the visor covers the external line of a pair of glasses conventionally polarized front CA). Conveniently, the pad supporting all the assembly fits the front viewer, the Rx lenses to be mounted behind the viewer are biased into a suitable light weight fastener or frame, metal wire type or edgeless type. This-frame bracket does not have a nasal pad and the frame generally fills the outer line of the visor and provides substantial space around the user's nose. Likewise, conveniently the frame in which the complementary Rx lens elements are mounted is reasonably rigid (for normal lightweight glasses standards) to fold in the vertical plane, but at the same time be flexible to fold horizontally . [Borderless and metal wire styles achieve both objectives]. Such designs usually incorporate a relatively rigid member through the nose bridge. An example is given in Figure 20. The nasal bridge is provided by a support that arises vertically from the structure comprising each individual lens. Also ee It is common to design design styles, in which this support can be folded forward, away from the nose to the forehead bar or other top construction of the visor assembly through the nasal septum Figure 2 shows in the section C a pair of polarized Rx lenses in such a frame placed immediately behind the viewfinder.The two assemblies coincide closely in the time limit, both vertically and throughout the storm reaching the lower edge of the viewfinder.They are separated by a designed and predictable separation in the eyebrows above the nose bridge *** in Figure 1. If the two assemblies are fixed vertically in the temporary limits, the remaining connection required to create a stable assembly is to connect the part of the eyebrows of the visor with the wire support of the frame of the secondary lens Figure 21 Figure 21 shows the principles of detailed design in the nasal bridge and in the temp limits of an assembly of glasses. "" The attachment of the complementary lens assemblies can be achieved by a variety of tongue-and-staple systems visible from the front of the spectacle assembly. This is not desired in the context of the present invention. Therefore, the conditions Support for the Rx frame should be of the front lenses or the viewfinder as much as possible. An example of a satisfactory design is to provide at the vertical boundary edge of the vertical of the viewfinder or the frame of the glasses at its two locations to retain the lenses. A pair of retentive slots of the lenses or frame is provided in front of the temporary hinge. The front retainer slot retains the viewfinder or, if the sunglasses are built with a pair of flat lenses in a designer frame, the front slot stops the flat lens. Behind this, vertically open upwards and closed by-below is a second retainer slot accommodating the temporary extremity of the frame Rx or a configured protrusion of the individual Rx lenses fastened within the frame Rx. The lenses Rx are therefore fixed to the assembly by first sliding the temporary boundaries of the frame Rx into these detent grooves.

To make this complete assembly stable, preferably at least there is a connection between the two members so that vertical movement is avoided and the entire system can withstand the ineeperated impacts A means to connect the two assemblies in the partition nasal - is to ensure that the protrusion of the Rx scaffold bracket contacts the nasal septum of the visor assembly and is fixed by a removable staple Figure shows a modality The wire holder is moved forward Place a pair of groove cuts on the top edge of the eyebrow part of the viewfinder. These grooves allow the support to be pressed down so that (with the compression of the frame Rx and the viewer horizontally), the support passes a protruding tongue. This tab extends in front of the part of the eyebrows of the visor at least to the diameter of the support that is behind, so that the support remains captive for the conditions of normal use. EXAMPLE 9 Figure 21 also illustrates a product configuration in which the Rx lenses are fixed permanently in a frame of the appropriate type of glasses and is fixed to a visor opposite it. In the assembly illustrated in Figure 21, the complementary rear lens elements are mounted permanently. These lenses can be of the mixed curve design type and will be useful as a wraparound design like the Rx lenses. The attributes of the sunglasses provided in this case by a front viewer, which will be fixed removably through the front slot of Figure 21 and will remain in place by the support the support or the similar member projecting from the front. Rx framework in the nasal septum. In this case, it will be sufficient that the bracket resides in a groove inside the part of the visor eyebrows, an retaining tab being not essential since the assembly gains physical resistance from the complete Rx frame that is behind. For a product of this type the viewer will be chosen according to the activity and the visual experience.In Figures 20 and 21, the usefulness of sunglasses can be provided either through a viewfinder or through sunglasses. The appropriate design parallels for both are included without repeating the drawings of these designs or the specific example Example 10 Figure 22 Lae gafae for polarized envelopes are desirable on a positive and negative Rx power scale with minus a number of inventory items of frames for a given style.The front curve of all Rx is preferably chosen to be common to most Rx, but may vary for extreme writings.Figure 22 illustrates planar views and In elevation of two popular brands of wraparound sunglasses (Al and A2), both provide effective temporary vision protection for the user.They are sold with flat lenses and are considered are recommended to fit with Rx lenses. The lenses plants are simple spheres of base curve of -6 D (Bl and Cl). However, the lenses designed according to this invention and the Australian Provisional Patent Applications PN 8806 and PN '9007 given to applicants, whose full description is incorporated in the present by reference, provide the option of adjusting the Rx lenses in the power scale of -4 D to +4 D at least. In Figure 22, section C3 shows a negative Rx of -2 D. This has the front curve of 12.5 D from the time limit to the front optical axis, the posterior curve in this scale is 14.5 D, except for one Integral temporal extension that limits the thickness of the edge of the lens and begins 50 ° from the front optical axis For the nasal side, this lens has a frontal-plane curve from 0 to 0.50 of base or approximately and a depth of 2 D in the posterior curve This configuration is shown for the negative Rx lenses in Figures 14, 15 and 17 and provides the specific benefit of minimizing the physical return of the curve from the slow inward to the front vertex in the optical axis and the nasal limit The temporal scope of the lens is therefore increased without exaggerating the curvature of the lens with respect to the temporal side In figure 22, a positive Rx lens of +2 D is shown as section C2 The front curve is 12.5 diopters and the rear curve of 10.5 diopters from the axis optical-at the time limit. For the nasal side of the optical axis the frontal curve is 0 or 0.50 D so that the front surface of the positive Rx lens is identical to that of the negative Rx lens. Both will be properly polarized _ in _ frames if the orthogonal (vertical) front curve is approximately 9 D (Section B2). For such selection of front surface in a positive Rx lens form, the surface curve. posterior from the optical axis to the nasal limit should be negative. That is, the center of curvature is for the front of the lens, instead of being located on the side of the eye. These curves need to be corrected to explain the changed location of the effective posterior vertex, ^ however the design is parallel to the lenses in a conventional manner except that the physical form is biconvex in the nasal region of the lens. In this case, the temporal scope of the positive lenses equals that of the negative lenses ya_ that have a common front surface geometry. Also, the present invention provides a front surface geometry that can be selected independently of the chosen Rx power. As elaborated in the above, the shape of the constant frontal surface facilitates the use of complementary adjustment lenses per jump for the complementary adjustment of Rx (such as the addition of power multifocal or progressive) or the effect of polarizing or mirror effects for superior brightness or intense light applications. The comparative designs for positive lenses using mixed curves that are given in Figures 10, 11, 12, 15 and 17 assume that ambae curvae of poeitive lens should be positive on its nasal side. Specifically, the more "flat" designs have a back surface curve of about 0 to about 0.50 D and there is no noticeable difference between the distance of the frontal apex and the frontal nasal confinement for all powers Rx other than flat ones. the power Rx EXAMPLE 11 Figure 23 The lenses that can be included in the frameworks that give several degrees of wrapping towards the temples, the frontal curves being preferably independent of the Rx to adapt either to a simple regime of gafae frames for sun or internal frames that are to be attached to a viewfinder assembly (Figure 23, lenses 3 and 4.) Such a viewer assembly can be a simple cover or a cover with separate pieces.

EXAMPLE 12 Figure 23 illustrates lenses _ (5 and 6) that can be included in products that accentuate the facial shape in the nose as well as the temples, taze as polarized lenses or complementary lens elements for covers. Covers can be clear covers for sports designed solely to protect the face in ball sports such as basketball, where the activity avoids the use of heavy helmets "and similar as for example for the American Futball, alternatively they can provide protection to the ultraviolet rays, protection against skin cancer as it is commonly experienced in the nose of the individuals. Figure 23 illustrates the horizontal section of the lenses Rx whose optical axis 0 is located closer to the nasal boundary N than to the temporal boundary T. Lenses 1 and 2 are conventional spheres with curves of front and rear beam of 6 and 8 D to produce positive and negative 2 D Rx lenses. Lenses 3 and 4 have the same spherical base curves of 6 and 8 D from temple T to optic axis O. Toward the naeal limit, ambae lentee have flat frontal curves of approximately 0 D. The positive Rx lens 3 has Negative back surface curves to provide the required refractive power These lenses give scope, temporary maximum for lenses of aesthetic appearance, conventional while also having less curvature of temporary design. A full scale of Rx is preferably designed with a constant front surface shape. However, the physical requirements for the lens space in the temporal and nasal limits may dictate that the power of the lower design curve be used for higher negative Rx-lens categories. "- Lenses 6 and 6 have the same spherical design _ _ as compared to the other lenses in this Figure.

However, the curves from the optical axis -O to the nasal limit N are negative in each case. These latter lenses have a distinctive shape and forward reach towards the nasal septum as well as part. posterior of the temples. They can be manufactured with general conical orthogonal curves of approximately 6 to 9 D or approximately and are obviously useful for creating gauzes that accentuate the contours of the face including the nasal region. This can be for sunglasses, but it also applies to sports visors such as basketball scopes where the safety cover fits tightly around the face to protect the temples, cheeks and nose. Talee visors - today day in the market are cut to provide the visual opening since the optical inserts of Rx. high quality with lenses. shape conformadora required not available. The lenses designed on the principle of 5 and 6 in Figure 23 will satisfy the purpose of such an application. The front curve can be chosen independently of the Rx. EXAMPLE 13 Figure 24 Figure 24 illustrates the horizontal section of a slow optic +4.0 D according to the present invention. This lens is similar to that of Figure 12 and can be used either as an insert lens behind a pair of flat sunglasses or can be directly polarized in a frame with a nominal design curve of 8 D. In this case, the curve frontal towards the sensation 1 ee of 17 D and that towards the nasal limit N is of 5 D. There is no flat region and the lens provides the desired Rx correction through all the aperture. Figure 25 Figure 25 is a view similar to that illustrated in Figure 24, but the optical center has been offset 10 mm from the axis. This deviation is sufficient to adjust the lens to more tight envelope type frames. Optical errors are corrected by the design of the front surfaces of the lens and there is a full panoramic field - vision corrected throughout the opening of the frames. Likewise, the The inner surface of the lens scarcely covers the space available for the eye and the movement of the eyelashes, although a relatively strong positive Rx is provided. The vertical curve can be chosen to fit the frame style, but will be on the 4 D to 8 D scale for current designs. EXAMPLE 14 Figure 26 Figure 26 illustrates an optical lens similar to that illustrated in Figure 24 except that the region between the optical center and the nasal boundary is biconvex in order to improve aesthetics, for example by accentuating the facial features that form the naeal region.- - - Figure 27 Figure 27 is similar to the view illustrated in the Figure 26 but the optical center has been decentralized 10 mm with respect to the geometric axis in order to gain complete envelopment of the user's visual field without decreasing the Rx_zone as would occur for example with a flat temporal extension. E EMPLO 15 Figure 28 Figure .28 illustrates an optical lens of +6.0 D according to the present invention;, but "using it" front surface curve to that of +4.0 D optical lenses. Figure 29 Figure 29 is a view similar to that illustrated in Figure 28, but the optical center of the lens has been offset by 10 mm with respect to the geometric axis for meet the requirements of most of the very enveloping frames. This lens provides enough space not to impede the movement of the peetañae despite the high Rx involved. An additional space can be created by tilting or rotating the lens within the horizontal plane. EXAMPLE 16 Figure 30 Figure 30 illustrates an optical lens of -4.0 D according to "the present invention, but using the same frontal curve as that of optical lenses of +4.0 D and +6.0 D and that also avoids the use of a temporary extension without prescription. Figure 31 Figure 31 is a view similar to that shown in Figure 29 but -the optical center has been deepened 10 mm with respect to the geometric axis in order to provide a maximum degree of envelopment. EXAMPLE 17 Figure 32 Figure 32 is an optical lens similar to that of Figure 29, but having a small change in the wash curve through the user's field of view. The nasal change with respect to the temporal area is from 8 D to 12 D, compared to 5 D to 17 D in the previous example. The required envelopment around Sx without extension without a temporal field prescription is achieved by tilting the lens horizontally by 11 °. This requires correction of either the front, back or both surfaces to compensate for the optical errors introduced by the tilt. Figure 33 Figure 33 is an optical lens that has constant front and rear curves (8.0 and 12.0 D respectively) to create an Rx of -4 Diopters. As for the lens in Figure 32, the desired wrapping is achieved by tilting the lens horizontally. The angle of inclination in this case is 16 °, requiring the correction of major optical errors by the atoric modification of one or both of the surfaces of the lens as ee elaborated in International Patent Application PCT / AU97 / 00188 granted to the Applicants . A benefit is achieved in the relative simplicity "of the shape of the lens compared to that of Figure 32, represented by dotted lines in Figure 33. It is observed that the thickness of the temporal and nasal borders of the two lenses are approximately equal, but the lens of more conventional form is closer to the eye than that lens of Figure 32, designed in accordance with the present invention. The greater the change-, in the base curve through the user's visual field, more space will be created for the natural movement of the eyes and the peetañas. EXAMPLE 18 Figure 34 Figure 34 illustrates an optical lens of +4.0 D according to the present invention which is rotationally symmetric about axis Ax, thus allowing the introduction of a cylinder to any required orientation from an inventory of finished lenses. The temporal field of the lens provides Rx correction through its entire aperture. It can descpbiree that it has a-tubular design axle defined by the rotation -of A "around Ai. EXAMPLE 19 Figure 35 Figure 35 illustrates an optical sheet article (see detached parts) of +4.0 D according to the present invention that includes a front and back wafer having the respective front and rear curves of 10.82. D. The geometry of the optical sheet article when assembled is the same as that of Figure 34. However, its creation by a lamination process allows to provide orientation-sensitive features such as multifocal correction, progressive power addition and polarization to light with respect to the final product through proper construction of the front wafer. Alternatively, features such as mirror Reflection, elatrochromatic layers and photochromic films can be encapsulated at the juncture surface, providing useful features to the final lens and protecting fragile limbs that are typically used to create such properties. EXAMPLE 20 Figure 36 Figure 36 illustrates an optical sheet article of -4.0 d that is rotationally symmetric about the axis Ai and has been created by laminating a pair of front and back panels having a coinciding surface area of 9.75 D. In desirable manner , all wafers of a set of products that fit a prescription scale of +6 to -6 D should have the same matching interface curve. However, the most practical choice for that coincident curve depends on the nominal design curve of the frames to which the final lenses are to be mounted. _ Finally, it will be understood that various other modifications and / or alterations can be made without departing from the spirit of the present invention as outlined - in the present. EXAMPLE 21 - Figure 23 Figure 2 illustrates the horizontal section of an optical lens of +4.0 D according to the present invention. This lens can be directly polarized on. a frame with a nominal design curve of 8 D. In this case, the frontal curve towards the temple T is 17 D and that towards the nasal limit N is 5 D. There is no flat region and the lens provides the desired Rx correction through its entire opening. - - EXAMPLE 22 A: Refer to Figure 37 above The lens illustrated there has the front and rear surfaces which are smooth and continuous, in terms of the height of the surface and the shape of the surface. Together, the pair of surfaces define a constant through the rotation power although the curvature of each has a discontinuity in the horizontal plane through __ of the optical axis of the lens. The curvature change is identical for both surfaces, thus providing power, of. constant refraction in the lens. - - - - Not any surface "will function as a suitable lens surface sheet unless it matches a complementary surface. A suitable mathematical form for the surfaces is where Z (x) =? B "xn where Ox is the horizontal direction and Oy is the vertical direction. The coefficient Aj has a constant value that specifies a constant vertical curvature, while the coefficients Bn adopt different values for positive and negative values of x. For the lens in figure 37 made of polycarbonate, the front surface is A2 = 6.838 E-03, and B2 = 14.530 E-03 for x = 0 and B2 = 4.274 E-03 for x < 0 while B4 = (B2) 3, B6 = 2 * (B2) \ B8 = 5 * (B2) 7 For the rear surface A2 = 3.419 E-03 and B2 = ll.lll E-03 for x = 0 and B2 = 0.855 E-03 for x < 0 Molds for injection molding or casting of such lenses are produced by processes used to make progregate addition lens, either by CNC grinding or by metal tools or ceramic formers from which glass tools (molds) are made for emptying. Preferably the surface is milled through a succession of transverse movements Oy of the design, indexing horizontally to follow the profile Z (x). This limits the sources of error in imparting the change in the shape of the surface corresponding to the values -B2 for positive and negative values of x. - The challenge remains in the manufacture of the lens ee "" ensure the precise alignment of the axis and the orientation of the two mold surfaces with respect to each other. The misalignment will cause errors in the refractive power on the vertical axis. The conventional in the ophthalmic industry is. mixes a surface region- into another support region of a different character in order to ensure that the undesired aesthetic characteristics such as the reflecting on the localized surfaces are avoided. Typically this has been achieved with localized errors in the refractive power. With modern CNC machining technology, such power errors can be avoided. It has been found that the two parts of the .1-member illustrated in Figure 37 (ie x <0 and x = 0) can be mixed together so that the conformation is raised from one to the other. Specifically, the surfaces and both the first and the second derivatives can be made straight and continuous per se. The relation between the surfaces "will define a constant refraction power through the lens." Two examples are provided: EXAMPLE 22A To mix the lens segments on a zone, with a width of 8 mm from the nasal side of the line of direct view, Z x) = 0+ jB2n x2"; x = x0 nl =? Bax"; x0 < x = where x0 is the width of the prescription zone, and the coefficients Bn, B '"and B" n adopt different coefficients for positive and negative values of x. where xo = -8.0; B'0 = 0.220225 _ - B'2 = 4.274 E-02; B ', B'6, B1, as in the previous and B "2 = 14.530 E-03; B" 4, B "6, B" 8 as in the previous B2 = 14.530 E-03; B3 = 4.276 E-04; B3 = 3.067 E-06; Bs = 2,707 E-07 B6 = 9.256 E-09; B7 = 2,685 E-10; B8 = 1.89 E-ll for the front surface. For the rear surface x0 = -8.0; B'n = 0.218973"- _ - B'2 = ll.lll E-03; B'2" as in the previous B "2 = 0.855 E-03; B "2" as in the previous and B2 = l.lll E-02; B3 = "4,274 E-04 B4 = 1,372 E-06; B5 = 1,583 E-07 B5 = 6.426 E-09; B7 = 1.431 E-10; B8 = 5.115 E-12 This creates the horizontal section shown here as Figure 38 for which the horizontal power of the two surfaces varies as for Figure 39. Note that the change in the linear power change through the mixing zone with the absence of discontinuities in the description of the surface and its characteristics of shape and curvature. EXAMPLE 22B To mix lens segments within 6 mm range, using a faster but still linear change in horizontal power. The section of the lens of Figure 40 -in the present and the horizontal power shifts of Figure 41 in the present ee achieved by the following changes - with respect to the parameters for Example 22t above: x0 = -5.775; B'o = 0.130382 (front); B'o = 0.130013 (rear) and for the front surface; B2 = 1.453 E-02; B3 = 5.983 E-04; B4 = 3.067 E-06; B5 = 3.789 E-07; B6 = 1.689 E-08; B7 = 4,808 E-10; Ba = 2.264? -ll ~~ - while the rear surface has B2 = l.ll E-02; B3 = 5.983 E-04; B "= 1.372 E-06; B5 = 2.216 E-07; B6 = 1.227 W-08; B7 = 3.0535 E-10; B8 = 9.925 E-12 EXAMPLE 22C To mix the lens segments within a 8 mm regime centered on the line of sight, using a non-linear change in the horizontal power so that the rate of change of the power is itself continuous through the mixing zone. That is to say; the surface is continuous with respect to the third-derivative. The lens section of Fig. 42 in the present and the change in the horizontal power of Fig. 43 and through the power of Fig. 44 in the present-- are achieved by the following changes with respect to the representation for Examples 22A and 22B "previous: Z (X) = B'0 +? I B'2II X2? X = -X0 =? B "x" --x0 < x =.

Where B2 =. { P0 + 3.7 * sin [x * p / 15.5]} * 10 ~ 7l .170, the Bn are as defined in the above and P0 is 11 for the front and 7 for the back of the mixing surface. Notice the smoothness of the transition of the slope of the surface and the power through the mixture.

Claims

CLAIMS 1. An ophthalmic article that includes a first lens element characterized in that it has a front; a subsequent surface; and an extension in the temporal region; and a complementary lens element capable of carrying a "pre-registration surface (Rx) having a front surface configured in such a manner to narrowly approximate at least a portion of the rear surface of the first lens element; The complementary lens provides at least a portion of the refractive power required by the user, the ophthalmic article remains "substantially free of optical distortion. The ophthalmic article according to claim 1, characterized in that the article is a pair of glasses and the first lens element is a dyed sunglasses element attached to the frame of the glasses. 3. The ophthalmic article according to claim 2, characterized in that the supplementary slow element has a front surface of complementary shape with respect to the posterior surface of the first lens element. 4 The ophthalmic article that includes a first lens element that can have a prescription surface Rx and that includes an extension in the temporal region, and a complementary lens element having a rear surface configured in such a manner to closely approach at least a portion of the front surface of the first lens element, the complementary lens element provides at least a portion of the refractive power required by the user; the ophthalmic article is usually free of optical distortion. The ophthalmic article according to claim 4, characterized in that the complementary lens element is a lens element for dyed sunglasses. 6 A fastener of the lens element including a pair of lens element holders; fixing means for removably fixing the fastener of the lens element to a gafae frame; and a pair of lens elements mounted on or in the supports of the lens element, the lens element or elements includes an extension or extensions in the temporal region. 7. The lens element fastener according to claim 6, including a nose piece adapted to receive and retain a pair of lens elements; The nose piece is adapted to be removably attached to the nose piece of the eyeglass frame. 8. Glasses that include a frame of glasses; an element or elements of sunglasses with dye or a cover element attached to the frame; a fastener of the lens element including a pair of lens element holders; fixing means for optionally removable fixation of the fastener of the lens element to the lens frame; and a pair of optical lens elements mounted on or on the lens element support, such lens element or elements include an extension or extensions in the temporal region. 9. The spectacles according to claim 8, characterized in that the optical lens elements can be optical lens wafers. 10. The glasses according to claim 8, characterized in that the pair of optical lens wafers are posterior lens wafers which can form a prescription surface Rx. 11. Glasses that include a frame for glasses; a pair of ophthalmic lenses that can carry an Rx prescription surface; a fastener of the lens element including a lens element holder or supports; fixing means for removably securing the lens element holder. to the frame of the glasses; and an optical lens element or elements mounted on or on the lens element support, the lens element (s) includes an extension in the temporal region 12. The glasses in accordance with the claim 11, characterized in that the fixing means "are designed to removably fix the fastener _ of the lens element to the front of the frame of the gagae 13. The glasses in accordance with the claim 12, characterized in that the optical lens elements are a pair of optical lens wafers. 14. The glasses in accordance with the claim 13, characterized in that the optical lens wafers are front lens wafers. 15. An optical lens element that includes a front and rear surface, at least one surface is continuous, and forms a prescription zone Rx and optionally a peripheral temporal zone; at least one surface exhibiting a change of the base curve through the user's field of view; the front and / or rear surface carry a correction on the surface to adjust for at least partially the optical errors 16. An optical lens element including a front and rear surface, at least one continuous surface and forming a Rx prescription zone and optionally a non-prescription peripheral time zone, at least one surface exhibits a change of the base curve through the user's field of view, the front and / or rear surface bears a surface correction for at least partially adjust the optical errors 17. The optical lens element according to claim 15 or 16, characterized in that the front surface exhibits a change of the base curve through the user's field of view, the curves of base are mixed gently to avoid a prismatic jump in the Rx zone 18. The optical lens element according to claim 17, characterized _ because both the front and back surfaces of the lens change the base curve to provide the desired prescription Rx in the prescription zone without astigmatic errors, medium power or binoculars; and the rear surface is selected to be in a complementary manner, or vice versa. 19. The optical lens element according to claim 15 or 16, characterized in that the lens element is adapted for mounting on a shell of the shell or shell type, such that the lens is rotated temporarily about an axis. through the optical center of it. 20. The optical lens element according to claim 15 or 16, characterized in that the lens element is adapted to be mounted on a frame of the shell or shell type, so that the lens is off-center to move its optical axis from the line of 5 vision while maintaining the parallelism between the two. The optical lens element according to claim 15 or 16, characterized in that the slow element is adapted for mounting on a shell or shell type frame, so that the lens both C offset and rotated temporarily about an axis vertical through the optical center thereof. 22. The optical lens element according to claim 15 or 16, characterized in that the peripheral time zone is at least in part physically 5 generally toric in shape. 23. The optical lens element according to claim 15 or 16, characterized in that the peripheral time zone is at least in part generally planar, the front surface being modified in the. peripheral temporal zone to correspond substantially to the curvature of the posterior surface. 24. The optical lens element according to claim 15 or 16, characterized in that the lens element is modified to allow light control. 25-. The optical lens element according to claim 24, characterized in that the lens element includes one or more of the group consisting of mirror coating, a coating. light, a light polarizing member, a reflective coating or a light control dye within the peripheral temporal zone. 26. The optical lens element according to claim 15 or 16, characterized in that "the lens element is generally rotationally symmetrical about its geometric center 27. The optical lens element according to claim 15 or 16, characterized in that the lens element is modified to provide multifocal correction or progressive power addition. - _ 28. The optical lens element according to claim 27, characterized in that the lens element ee modifies to allow light control. 29. The element of. optical lens according to claim 24, characterized in that the lens element includes one or more of the group consisting of mirror coating, a light control coating, a light polarizing member, a reflective coating or a control dye. light within the temporal zone - peripheral. 30. The optical lens element that provides a prescription correction area Rx on the scale of--. about. -6.0 D to +6.0 d and optionally a peripheral time zone to provide a cover in the sienee area, "where the front surface can be mounted on a constant design curve frame without importing the Rx, such frame curves being of 5.0 D and more; the posterior surface provides a good space from the eienee or lashes; and at least one surface exhibits a change of the base curve through the user's field of vision; the front and / or rear surface carries a surface correction to adjust at least partially "the optical errors. 31. The optical lens element according to claim 30, characterized in that the peripheral temporal zone is a non-prescription area. 32. The optical lens element -in accordance with claim 30, characterized in that the "front surface exhibits a change of the base curve through the field of vieion of the ueuario, the basic curves are mixed gently to" avoid prismatic jump -in the Rx zone. The optical lens element according to claim 30, characterized in that the front surface of the lens element has a base curve of about 0.0 D to about 8.0 D extending from the nasal boundary to the optical center of the lens element and a curve "high base from the optical center to the time limit of about 8 D or more, but the vertical curve is 8 D or less 34. The optical lens element according to claim 30, characterized in that the The lens element is modified to provide multi-focal correction or progressive power addition 35. The optical lens element according to claim 30, characterized in that the lens element is modified to allow light control. optical-lens "according to claim 3-0, characterized in that the element of lens includes one or more of the group that. it consists of a mirror coating, a light control coating, a light polarizing member, a reflective coating or a light control dye within the peripheral time zone. 37. A unitary lens that includes a pair of optical lens elements, each lens element includes a front and a rear surface, at least one surface is continuous, and forms a pre-write zone Rx and a peripheral time zone to provide a cover in the area of the temples, whose zones are mixed gently to avoid a prismatic jump - from the Rx zone to the temporal zone, and provides prescription correction Rx on the scale of around -6 D to +6 D , "" where the front surface can be mounted on a curved frame of constant design despite the Rx, such curves of the frame are 5.0 D and above, and the rear surface provides a good spacing - from the temples or the eyelashes; and at least one surface exhibits a change of the base curve through the user's field of vision 38. The unit lens according to claim 37, characterized in that- the peripheral temporal zone is a non-prone zone. escription 39. The unitary lens according to claim 37, characterized in that the lens provides true correction of Rx in the prescription zone Rx for a user no greater than 50 ° of the rotation detection axis of the eye and ends in a peripheral temporal zone, which It provides a clear perception of the objects in the peripheral area of human vision and avoids the prismatic jump in the prescription zone. 40. An optical lens element adapted for mounting on a shell of the shell or shell type so that the lens element is temporarily rotated about a vertical axis through the optical center thereof, the lens element includes a surface front and rear, at least one front surface is continuous and forms a prescription zone Rx and a peripheral time zone; the front and / or rear surface "carries a correction on the surface to at least partially adjust the optical errors that include the aetigatic and medium power errors, at least one surface exhibits a change of the base curve through the 41. The "optical" lens element according to claim 40, characterized in that the front and rear surface also include a correction in the surface to adjust prismatic errors at least partially. 42. The optical lens element according to claim 40, characterized in that the lens element is generally rotationally symmetrical around its center of geometry. 43. The optical lens element according to claim 40 characterized in that the rear surface includes a bae curvature so that the prescription power required by the patient, Rx, the prescription zone is achieved; the rear surface is further modified to complement the selected front surface. 44. The optical lens element according to claim 43, characterized in that the pointer surface further includes a correction of the medium and astigmatic power error to compensate for the lens envelope. 45. The optical lens element according to claim 40, characterized in that the lens element is modified to provide multifocal correction or addition of progressive power. 46. The optical lens element according to claim 40, characterized in that the lens element is modified to allow light control. 47. An adapted optical lens element - for mounting on a shell of the shell type or the shell type so that the lens element is off-centered so that the optical axis and the direct line of editing remain parallel, the lens element includes a surface - front and rear, at least one surface is continuous and forms a prescription zone Rx and a peripheral time zone; the frontal and / or posterior surface bring a correction in the surface to at least partially adjust the optical errors that include astigmatic and medium power errors; at least one surface exhibits a change of the base curve_ through the user's field of vision. 48. The optical lens element according to claim 47, characterized in that the front and / or rear surface also include a correction on the surface to at least partially adjust the prismatic errors. 49. The optical lens element according to claim 47, characterized in that the lens element is generally rotationally symmetric about its center of geometry. 50. The optical lens element according to claim 47, characterized in that the surface Subsequent includes a base curvature so that the prescription potency required by the patient, Rx, the prescription zone is achieved; the rear surface is further modified to complement the selected front surface. 51. The optical lens element according to claim 50, characterized in that the rear surface further includes a correction of the medium and aetigmatic power error to compensate for the lens envelope and offset. 52. The optical lens element according to claim 47, characterized in that the lens element ee modifies to provide "multifocal or progressive power addition" correction 53. The optical lens element according to claim 47, characterized in that the Lens element is modified to allow light control 54. An optical lens element adapted for mounting in a shell of the shell type or shell type, includes a front and a rear surface, at least one surface is continuous and forms a prescription zone Rx and a peripheral temporal zone; "" the front and / or posterior surface have a correction on the surface to at least adjust Partially the Optical errors that include astigméticoe errors and of average power; at least one surface exhibits a change of the base curve through the user's field of vision; wherein the optical axis is offset from the geometrical axis of the lens element to provide prismatic correction. 55. The optical lens according to claim 54, wherein the lens element includes a temporary peripheral non-prescription area. 56. The optical lens element according to claim 54, characterized in that the lens element is generally rotationally symmetric about its center of geometry. 57. The optical lens element according to claim 56, characterized in that the lens element is generally rotated temporarily about a vertical axis through the optical center thereof 58. "The optical lens element in accordance with claim 54, characterized in that the front and / or rear surface further includes a correction on the surface to at least partially adjust the erroree of average and astigmatic power off-axis as well as to avoid the prismatic jump. 59. The optical lens element according to claim 54, characterized in that the lens element is modified to provide multifocal correction or progressive power addition.60 The optical lens element according to claim 54, characterized in that the Lens element is modified to allow light control 61. An optical article in lashes adapted for mounting on a shell or shell type frame, which includes a front-lens element, • a complementary rear lens element , at least one of the front and rear surfaces of the optical article in sheets is continuous and forms a prescription zone Rx; at least one surface exhibits a change of the base curve through the user's field of vision; the front and / or rear surface carries-a correction to at least partially adjust the errors 20-which include the mean and astigmatic power errors; the front and / or rear lens element optionally includes a peripheral time zone. 62. The optical article in sheets of compliance 5 with claim 61, characterized in that the elements of front and / or rear lens include a peripheral temporal zone that is a non-prescription area. - 63. The optical article - in sheets according to claim 61, characterized in that the front surface exhibits a change of the base curve through the user's field of view, the base curves are mixed gently to avoid a prismatic jump in the area Rx. 64. The optical article in sheets according to claim 63, characterized in that the front and rear lens elements are generally rotationally symmetrical around their respective geometric centers. 65. The optical article in sheets according to claim 64, characterized in that the sheet article is rotated temporarily about a vertical axis through the optical center thereof or the optical axis is off-centered with respect to the geometric axis, or the article in sheets it is rotated and off center 66. A method for designing an optical element adapted for mounting in an enclosing or cover type form, the method of which includes providing a mathematical or numerical representation of a surface of an optical lens element that includes a first section designed to provide the prescription desired Rx in the prescription zone; and add to it a mathematical or numerical representation of a an increased base curve overlap section so that the entire lens surface exhibits a change of the base curve through the field of view of the udder by forming a second section of the base curve increased; rotating and / or decentering the representation of the lens surface to allow assembly in a suitable frame; and modifying the representation of the surface area of the lens to at least partially correct astigmatic and medium power errors 67. The method according to claim 66, characterized in that it includes providing "a mathematical or numerical representation" of a non-spherical front surface of an optical lens element including a first section designed to provide the pre-write desired Rx in the prescription zone and to add thereto a mathematical or numerical representation of a base curve overlap section increased in a manner that the surface of the entire lens exhibits a change of the base curve through the field of view of the udder thus forming a second increased base curve section; rotating and / or decentering the representation of the surface of the lens to allow assembly in a suitable frame; and subsequently providing a mathematical or numerical representation of a rear surface of prescription Rx, and modifying the representation of the back surface of the lens element to at least partially adjust the errors including aetigmatic and medium power errors, 68. The method in accordance with the claim 67, which includes providing a mathematical or -numinal representation of a surface of an optical lens element that includes a first section designed to provide the desired prescription Rx in the prescription zone; and adding thereto a first mathematical or numerical representation of a second base curve overlapped section increased so that the lens-complete surface exhibits a change of the base curve through the user's field of view; a second mathematical or numerical representation of a transition section designed to blend smoothly in. the pre-enrollment section and the overlapping section "" to define a complete lens surface; rotate and / or decentralize the representation of the lens surface to allow for assembly in a suitable frame, and modify the surface representation of the lens to at least partially correct errors including aetigmatic and medium power errors 69. The optical lens element according to claim 1, modified to accentuate the facial shape in the naeal region and include a region of reduced or opposite curvature defining a region that accentuates the nasal region. 70. A pair of optical lens elements according to claim 69, mounted on a frame so that the lenses in conjunction with a fixed nose piece provide physical protection or radiation to the user's nose. 71. Spectacles including a wraparound spectacle frame adapted to receive a pair of ophthalmic lenses so that each lens is rotated temporarily about a vertical axis - through the optical center thereof; and a pair of optical lenses, each lens includes a front and back surface that together form a Rx prescription zone and a peripheral temporal zone, the front and / or rear surface carries a correction on the surface to at least partially adjust for errors that include astigmatic and medium power errors; at least one surface exhibits a change of the base curve through the field of view of the ueuario. 72. The spectacles according to claim 71, characterized in that the peripheral temporal zone is a zone of non-prescription. 73. The spectacles include a frame of wraparound type spectacles, a pair of optical lens elements whose lens elements provide true Rx correction in the prescription area Rx for a user, with 60 ° of off-axis rotation of the eye, and ending in a peripheral time zone, each lens element has at least one surface that exhibits a change of the base curve through the user's field of view, at least one surface exhibits a change in the curve Through the user's field of vision, the elements of the lens provide clear perception of the objects-in the peripheral area -of human evolution and avoid the prismatic jump in the prescription zone.