TW200912425A - Multifocal lens having a progressive optical power region and a discontinuity - Google Patents

Abstract

Embodiments of the present invention relate to a multifocal lens having a diffractive optical power region and a progressive optical power region. Embodiments of the present invention provide for the proper alignment and positioning of each of these regions, the amount of optical power provided by each of the regions, the optical design of the progressive optical power region, and the size and shape of each of the regions. The combination of these design parameters allows for an optical design having less unwanted astigmatism and distortion as well as both a wider channel width and a shorter channel length compared to conventional PALs. Embodiments of the present invention may also provide a new, inventive far-intermediate distance zone and may further provide for increased vertical stability of vision within a zone of the lens.

Description

200912425 IX. DESCRIPTION OF THE INVENTION: FIELD OF THE INVENTION The present invention relates to multifocal ophthalmic lenses, lens designs, lens systems, and eyewear products or devices for use on, in or around the eyes. In particular, the present invention relates to multifocal ophthalmic lenses, lens designs, lens systems that, in most cases, reduce inappropriate distortion, improper astigmatism, and visual impairment associated with progressive multifocal lenses to a very acceptable range for the wearer. And eyewear products. This application is filed on December 25, 2007, and is entitled "Multifocal Lens Having a Progressive Optical Power Region and a Discontinuity" Part of the continuation application of 11/964,030, the entire contents of which is incorporated herein by reference. The present application claims priority from the entire content of the following provisional application, the entire content of which is hereby incorporated by reference: Composite Advanced Progressive Addition Lens having a Discontinuity)" US 60/907,367; and July 7, 2007, entitled "" Improved toroidal and spherical curvature associated with the low additional power supplied to the progressive lens area (Refined Toric & Spherical Curvatures Associated with a Low Add Power Contributing Progressive Lens Region)" US 60/924,975; Applied on August 1, 2007 and named "Combined Optics for Correction of Near Vision and Intermediate Vision" U.S. Patent Application Serial No. 60/935,226, filed on Jan. 16, 2007, entitled,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The beauty of turning (Diamond Turning of Tooling to Generate Enhanced Multi-Focal Spectacle Lenses) No. 60 / 935,492: · August 17, 2007 application and entitled " has enhanced continuous optical power of the lens (Advanced Lens with Continuous Optical power) " US No. 60 / 935,573; Ο

US Patent No. 60/956,813, filed on August 20, 2007, entitled "Advanced Multifocal Lens with c〇ntimj〇us 〇ptical p〇wer"; and 2007 The US 6th/97〇, 〇24, which was filed on September 5th and named "Improved Multi-Focal". [Prior Art] Presbyopia is often accompanied by aging. Loss of adjustment of the lens of the human eye. This loss of adjustment first leads to inability to focus on close objects and later to focus on objects at intermediate distances. The standard tool for correcting presbyopia is a multifocal ophthalmic lens. A lens with more than one focal length (ie, optical power) for correcting a range of distances: A multifocal ophthalmic lens works by dividing the area of the mirror into regions of different optical power. Typically, it is located above the lens. The relative large area in the section corrects the distance vision error (if any). The smaller in the bottom portion of the lens = provides additional optical power for correction caused by presbyopia Close-range visual error. The multifocal lens may also contain a 130295.doc 200912425 region located near the middle portion of the lens that provides additional optical power for correcting intermediate distance vision errors. Multifocal lenses may form continuous or discontinuous optical power Continuous or discontinuous surface composition. Transitions between regions of different optical power can be abrupt (as in the case of bifocal and trifocal lenses) or smooth and continuous (as in progressively multifocal lenses) In the case of a progressive multifocal lens, the gradient of the positive refractive power from the distance from the long distance zone of the lens to the short distance zone in the lower part of the lens is ~··"Ding~JHJ/Dry

The progression typically begins at or near the point of the mating cross or mating point known as the lens and continues to progress until full additional power is achieved in the close range of the lens. Conventional and state of the art progressive progressive multifocal lenses utilize one of the surface configurations of one or both of the outer surfaces of the progressive lens that is shaped to form optical power. In the optical industry, progressive multifocal lenses are referred to as PALs at complex times. Or in the singular is called PAL. PAL is superior to traditional bifocal and three-point lens. Because PAL provides users with a wireless pattern and a multi-focal lens with appropriate appearance, the multifocal lens is at the user's focal point from a long distance to a close distance. The object has continuous vision correction and no perceived image interruption, or vice versa. However, PAL is now being corrected as a presbyopia in the United States. The 穴 啤 啤 久 久 久 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 汉 但 但 但 但 但Harm includes, but is not limited to, improper astigmatism, distortion, and scalp, which can affect the user's horizontal viewing width, which is a viewable household that can be clearly seen when viewing the user's distance.疋

It can be narrowed & when focusing on the intermediate distance. Therefore, the PAL leaf - has a slanting observation width, which can be difficult to observe most of the computer screen in the case of I30295.doc 200912425. Similarly, pAL can have a narrow horizontal viewing width when focused at close distances, which can make it difficult to observe a complete page of a book or newspaper. Long-distance vision can be similarly affected. PAL can also make it difficult for the wearer to move due to lens distortion. In addition to these limitations, 'there are distortions in each of the lenses'. Many wearers of PAL experience what is called visual motion ( The unpleasant effect often referred to as "eyes". In fact, many people refuse to wear these lenses because of the uncomfortable effect of this effect. When considering the short-distance optical power requirements of the presbyopic individual, the amount of close-range optical power required is inversely proportional to the amount of adjustment left in the individual's eyes (the amount of close-up convergence is usually proportional. Usually, as the individual ages, the adjustment range The reduction can also be reduced for various health reasons. Therefore, when someone ages and becomes older, the light needed to correct a person's ability to be in close and medium=two focus is needed. Power (referred to as the required refractive power) close-range and intermediate-distance optical power is usually stated as "additional additive optical power." The additional power is the amount of t-power corrected for long-range vision. Additional power is usually referred to as added to the far Distance vision correction to achieve appropriate near vision correction of optical power. If one has a -1.00D optical power correction for long-distance observation and +1 ^ ^ close-range observation of power correction, It is believed that this individual has a +2 fine close-range additional power. By comparing the different close-range additional power requirements of the two individuals, it is possible to directly compare each individual's near-point focus to b 徊 and T at the two points only For example, the 45-year-old can be the monthly b and the +i.〇〇d close-range additional power knife thousand I is at a close distance 130295.doc 200912425 clearly sees '80-year-old individuals may need +2 _75D The close-range additional power to +3.5 0D is clearly seen at the same near-point distance. Since the degree of visual impairment in pAL increases with the additional power of refraction, the higher the presbyopia, the more vision the individual will experience. Damage. In the above example, a 45-year-old individual will have a lower redness distortion associated with his lens and a wider intermediate and near vision area than the 80-year-old. As is evident, this is in existence and The opposite is true in the case of ageing associated quality of life issues (such as weakness or loss of flexibility). Adding damage to the vision function and suppressing safety where the multifocal lens makes life simpler, safer and more Uncomplicated lenses are in sharp contrast. By way of example only, conventional pALs with +1 · 〇〇 D close range additional power may have approximately 1.00 D or less improper astigmatism. However, with a close range of +25 〇D The conventional PAL of power may have about 2 75D or more improper astigmatism, while the conventional pAL with +3.25D close range additional power may have about 3.75d or more improper astigmatism. Therefore, with the close power of PAL Increasing (for example, +2_5〇d PAL compared to +l,0〇D pAL), the improper astigmatism found in PAL increases at a rate greater than linear. More recently, a double-sided PAL has been developed. Having a progressive multifocal surface configuration placed on each outer surface of the lens. The two progressive multifocal surfaces are aligned and rotated relative to each other to give not only the appropriate total additive close-range additional power required, but also The astigmatism formed by the pAL on one surface of the lens cancels some of the improper astigmatism formed by the pAL on the other surface of the lens. Although this design reduces improper astigmatism and distortion for a given close-range additional power compared to conventional pAL, the degree of improper astigmatism, distortion, and other visual impairments listed above for 130295.doc 200912425 remains Some wearers cause serious vision problems. Other multifocal lenses have been developed that provide for the placement of continuous and/or discontinuous optical elements in optical communication with one another. However, such lenses have not achieved optimal placement and alignment of continuous and/or discontinuous components. These lenses also fail to achieve optimal optical power distribution of the optical components placed in the optical communication. Thus, such lenses typically have one or more perceived image interruptions, artifacts, appearance problems, surface discontinuities, poor vision ergonomics, and/or steep power gradients. These problems are often translated into visual fatigue, eye strain and headache of the wearer of such lenses. These lenses also failed to achieve the upper far-intermediate distance zone, the far-middle zone of the platform with optical power, and the intermediate zone of the platform with optical power. Therefore, there is an urgent need to provide an ophthalmic lens and/or eyeglass system that satisfies the useless needs of presbyopic individuals while simultaneously correcting their presbyopia in a manner that reduces movement, working on a computer, and reading books or newspapers. Distortion and blurring, widening the horizontal viewing width, allowing for improved safety' and allowing improved visual capabilities. SUMMARY OF THE INVENTION - In one embodiment of the invention, an ophthalmic lens has a remote zone ' and a mating point. The ophthalmic lens can include a substantially spherical power region for providing additive optical power to the remote region to provide an intermediate distance region of the lens. The ophthalmic lens can further include a discontinuity between the remote region and the substantially spherical power region. The ophthalmic lens can further include a progressive optical power region that begins at a portion of the substantially spherical power region 130295.doc -11 - 200912425 for providing additive optical power to the substantially spherical power region to provide the lens One of the close range areas. In one embodiment of the invention, an ophthalmic lens has a distal zone and a mating point. The ophthalmic lens can include a substantially spherical power region for providing additive optical power to the remote region to provide an upper-middle distance region of the lens. The ophthalmic lens can further include a discontinuity between the remote region and the substantially spherical power region. The ophthalmic lens can be advanced to include a progressive optical power region starting at a portion of the substantially spherical power region for providing additive optical power to the substantially spherical power region to provide an intermediate distance region of the lens and the lens One of the close range areas. In one embodiment of the invention, an ophthalmic lens has a distal zone and a mating point. The ophthalmic lens can include a substantially spherical power region for providing additive optical power to the remote region. The ophthalmic lens can further include a discontinuity between the remote region and the substantially spherical power region. The ophthalmic lens can further include a progressive optical power region for providing additive optical power to the substantially spherical surface a power region for providing an intermediate distance region of the lens and a close distance region of the lens, the ophthalmic lens further comprising a platform of optical power in a portion of the progressive optical power region for use in the lens The vertical stability of vision is provided in one zone. . In one embodiment of the invention, an ophthalmic lens has a remote zone, an intermediate zone, and a close zone. The ophthalmic lens can include a large area of force ratio for providing additive optical power to the remote area. 130295.doc -12- 200912425 The ophthalmic lens can further include a discontinuity between the remote region and the substantially spherical power region. The ophthalmic lens can further include a tapered optical power region, wherein a portion of the progressive optical power region supplies a negative optical power to the substantially spherical power region. In the case of the present invention, the ophthalmic lens has a long distance zone, an upper far_intermediate zone, a middle intermediate zone and a close distance zone. The ophthalmic lens may include a progressive $., right π, initial power region. The ophthalmic lens can further include one of the optical powers located in a portion of the progressive optical power region for providing vertical stability of vision in the upper distal-intermediate distance region. . In an embodiment of the invention, the ophthalmic lens has a long distance zone, a middle distance zone and a close range zone. The ophthalmic lens can include a substantially spherical power region for providing additive optical power to the remote region. The ophthalmic lens can further include a discontinuity between the remote region and the substantially spherical power region. The ophthalmic lens can further include an progressive optical power region spaced apart from the discontinuity and below the discontinuity for providing additive optical power to the substantially spherical power region. The embodiments of the present invention are more fully understood and understood from the following description of the accompanying drawings, wherein the claims Xu Xi ophthalmology, optometry and optical terminology are used in this application. For the sake of clarity, the definitions are listed below: Additional power • Additional power indicates near vision and/or intermediate distance 130295.doc 13 200912425 Two pounds: extra positive light power. When the normal adjustment power of the eye is no longer enough to gather ‘, ,, close to the eye or the middle of the object to prescribe. Additional power is called "with force/j heartbreak for presbyopia

The long distance optical power of the lens. For example, if an individual has _3_M: a large deviation observation prescription and an additional power of +2 〇〇d for close-up observation, the close-range portion of the multi-point lens causes the actual optical power to be the sum of the two powers, Additional power is sometimes referred to as positive optical power or additive optical power. Second, power can also refer to additional power in the middle distance portion of the lens and additional power by ::+ distance. In general, the additional power between the distances t is approximately 5 近 of the close-range additional power. In the above example, the individual can be spaced to see the additional power and the actual total optical power in the intermediate distance portion of the multifocal lens may be . . The mixing zone comprises: at least a portion of the optical power discontinuity across the lens: a region of poor optical power, wherein the discontinuity is positioned between a first optical power and a second optical power. The difference between the first optical power and the second optical power can be caused, for example, by different surface configurations or by different refractive indices. Optical power: continuously transitions from the first-optical power to the second optical power across the mixing zone. When diffractive optics are used, the mixing zone can include the light efficiency of the peripheral regions of the hybrid diffractive optics. The mixing zone is used for appearance enhancement reasons. The mixing zone is not considered to be a useful part of the lens due to its poor optical properties. The mixing zone is also known as the transition zone. A region of a lens that is defined by the addition of positive optical power, which is centered in the lens. It extends from a long range to a close range and has no astigmatism greater than 1.00D. For progressive multifocal lenses, this optical power progressively begins approximately in a region of the lens known as the mating point and ends in the close region. However, in embodiments of the invention having a progressive optical power region, the channel may begin between about 4 mm and about 1 turn below the mating point. Channels are sometimes referred to as aisles. Channel length: The channel length is approximately 85 from the beginning of the definition of the channel from which the optical power first begins to increase to the additional power observed at a specified close distance of the lens. /. The distance measured by the position in the inner channel. The channel usually starts at or near the mating point. Channel Width: The narrowest portion of the channel defined by improper astigmatism above about L00D. This definition is useful when comparing lenses because wider channel widths are generally associated with less blurring, less distortion, better visual performance, increased visual comfort, and easier adaptability to the wearer. Continuous optical power: optical power that is substantially constant or that changes in a manner that does not create a perceived image interruption. Continuous surface: A refractive surface that does not cause a perceived image interruption. The continuous surface can be external or internal to the lens. If inside, it may have a different refractive index than the material adjacent to it. An example of a continuous surface is the surface of a substantially spherical lens or a progressive addition lens. Contour map: A curve produced by measuring and plotting the optical power of the lens and/or the power of the astigmatic light. The contour curve can be generated by various basket sensitivities of the astigmatic light power to provide a visual image of the lens with under-accurate astigmatism and its degree of possession as a result of its optical design. The analysis of these figures can be used to quantify the channel length of the lens, the width of the channel 130295.doc •15- 200912425, the read width and the long distance. The contour map can be referred to as an improper astigmatism power map, a spherical power map, an average power map, an additional power map, or a power error map. These figures can also be used to measure and depict the optical power in various parts of the lens. Conventional channel length: Due to the aesthetic focus or tendency of the eyeglass style, it may be necessary to have the lens that is vertically shortened to fit the frame due to the frame style. In these lenses, in order to transmit sufficient near vision, it is also naturally shortened. The known channel length refers to the length of the channel in the non-shortened lens. This 〇 equal channel length is usually (but not always) about 15 mm or longer. Generally, a longer channel length means a wider channel width and less improper astigmatism than a pAL having a shorter channel length. Discontinuous ft. + Continuity is the generation of light work 4 changes or surface changes that are interrupted by the use of 纟. The discontinuity can be caused by a step-up or step-down of the optical power between the two regions of the lens. For example, a discontinuity of 0·1 0D refers to a step-up or step-down of 〇 1 between two regions of the lens. I' Discontinuous optical power: The optical power that is changed in such a way as to form a perceived image interruption. Discontinuous surface: The surface that causes the perceived image to be interrupted. Discontinuous - 4 faces can be outside or inside the lens. If inside, it may have a different refractive index than the material adjacent to it. By way of example only, the discontinuous surface is the surface of the surface of the bifocal point lens that changes from a long range of the mirror to a close range. The dynamic lens I can be changed with the application of electric energy, mechanical energy or force 130295.doc 200912425 • "The lens. The optical power of the dynamic lens can be changed without additional grinding or polishing. The entire lens can be Having a changeable optical power, or only a portion, region or region of the lens may have a changeable optical power. The optical power of the lens is dynamic or (four) such that it can be in two or more optical powers Switching optical power. One of the optical powers may be substantially free of optical power. Examples of dynamic lenses include electroactive lenses, electrical meniscus lenses, lenses with one or more mechanically moving parts, or made of a suitable diaphragm. A lens (such as a gas lens or a fluid lens). A dynamic lens may also be referred to as a dynamic optical n-piece or a dynamic optical element. A dynamic lens may also be referred to as a transmissive adaptive optic or lens. A portion or region of the lens that allows the user to clearly see the optical power at a far-intermediate distance. The far-middle distance region can be positioned between the far distance zone and the intermediate distance zone of the lens In this case, it is called the "upper far-middle distance zone." The far-middle distance zone can also be positioned below the close range of the lens, which in this case is also referred to as "lower far-intermediate distance zone". The far-middle distance zone may also be referred to as the far-middle vision zone. Far-middle distance: For example only, the distance we see when observing the far edge of our desk. This distance is usually (but not always) considered to be between about 29 inches and about 5 inches from the eye, and in some cases between about 29 inches and about 10 inches from the eye. The far-middle distance can also be referred to as a far-middle viewing distance or a far-middle distance point. Remote reference point: A reference point of approximately 4 to 8 mm above the mating cross. At this reference point, the long distance prescription or remote optical power of the PAL can be easily measured. 130295.doc -17- 200912425 Remote Zone: A section or area containing a lens that allows the user to clearly see the power of light at a distance. The long distance zone can also be referred to as the far vision zone. Long-distance width: The narrowest horizontal width in the long-distance viewing portion of the lens, approximately 4 to 8 mm above the mating point, which provides clear, substantially blur-free power by the wearer's 25D long-range optical power correction Correction. Long distance: For example, the distance we watch when we look beyond the edge of our desk, when driving a car, when watching a distant mountain range, or while watching a movie. This distance is usually (but not always) considered to be greater than about 5 inches from the eye, and in some cases greater than about 1 inch from the eye. "remote distance' will not be confused with infinity that is about 2 inches or more from the eye. At infinity, the eye's conditioning system is completely relaxed. The optical power provided in our optical prescription to correct about 5 呎 (or 1 〇呎) or more from the eye is usually not significantly different from the optical power required to correct about 20 距 from the eye. Thus, as used herein, the distance refers to a distance of about 5 呎 (or 1 〇呎) G and greater from the eye. Long distances can also be referred to as far viewing distances and long distance points. A mating cross/fit point: a reference point on the lens that represents the approximate position of the wearer's pupil when the lens is mounted in the spectacle frame and positioned on the wearer's face through the lens. The mating cross/fit point is usually (but not always) located approximately 2 mm to 5 mm vertically above the beginning of the channel. The mating cross can have a very small amount of positive optical power in the range of only + 〇 〇〇D to about + 〇 i2d. This point or cross is typically marked with ink 130295.doc 200912425 water on the lens surface to provide a simple reference point for measuring and/or recombining the lens with respect to the wearer's pupil. The marking is easy to remove when dispensing the lens to the wearer. Hard or soft progressive multifocal zones • Progressive multifocal zones with fast or slow rate optical power changes or astigmatic power changes are referred to as hard or soft progressive multifocal zones, respectively. A lens that mainly contains a change in the rate of rapidity can be referred to as a "hard progressive multifocal lens". A lens that mainly contains a change in slow rate can be called a "soft progressive multifocal lens". Depending on the length of the aisle selected,

Depending on the additional power required and the designer's mathematical tools, the PAL can contain both hard and soft zones. Hard progressive multifocal lens. A progressive, multi-focal lens with a less gradual, steeper transition between long range correction and close distance correction. In hard PAL, 'no t distortion can be below the fit point and not & open to the periphery of the far distance region of the lens. In some cases the 'hard pAL' may also have a shorter channel length and a narrower channel width. "Modified Hard Progressive Multifocal Lens" is a pAL that includes a slightly modified hard PAL optical design that has soft PAL- or features such as a flatter optical power transition vehicular long channel,杈 Wide channel, more improper astigmatism spread out to the periphery of the lens, and less improper astigmatism below the fit point. Horizontal stability of optical power: Pervasive power with an approximate value of the horizontal width across the area or zone ^^ p Q domain or region of the side mirror. Alternatively, the optical power change can be about 0.05D or less per millimeter across the horizontal width of the region or region: = another generation, the optical power change can be crossed The average of the horizontal width of the area or zone is greater than or equal to the average of the millimeters. As an alternative 130295.doc -19. 200912425, the optical power change can be about 0.20D or less per millimeter across the horizontal width of the zone or zone. The average value. The area or zone may have a horizontal width of about 面 or greater. As an alternative, the zone or zone may have a horizontal width of from about one to about 3 mm or more. As a final alternative, the zone The or region may have a horizontal width of from about 2 mm to about 6 mm or more. The region or region may be a long distance zone of the lens, an upper far-middle distance zone, a middle distance zone, a close range zone, and a lower far-middle distance Zone, or any other zone. Horizontal stability of vision · It is believed that a region or zone of a lens has a level of vision in the region or zone with substantially constant clear vision when viewed by the user across the zone or zone. Stability. The zone or zone may have a horizontal width of about 1 mm or more. As an alternative, the zone or zone may have a horizontal width of from about 1 mm to about 3 mm or more. As a final alternative, the zone or zone may have A horizontal width of from about 2 mm to about 6 mm or more. The area or zone may be a long distance zone of the lens, an upper far-middle distance zone, a middle distance zone, a close range zone, a lower far-middle zone zone, or any other Area. ^ % is like interruption. The image interruption is an interruption in the image when viewed through the lens. When the image interruption occurs, the lens „ ^^ = no longer seamless. The image interruption can be a shift of the image that is interrupted by the image, a change in the magnification of the image that is interrupted by the image, a dog-like blurring of the image at the interruption of the image, or a combination of all three. One method of determining whether a lens has an image interruption is to position the lens at a fixed distance from a set of vertical lines, horizontal lines, or grids. 1A through 1B show different lenses with a -1.25D remote correction and +2.25D additional power and remain at a distance of 130295.doc -20-200912425 Curtain 6" Type screen 19·5" The vertical line or grid taken. 1A and 1B show a lens in accordance with an embodiment of the present invention. 2A and 2B show a lens in accordance with another embodiment of the present invention. 3A and 3B show a lens in accordance with another embodiment of the present invention. 4A and 4B show a lens according to another embodiment of the present invention. Figure 5 and Figure 5 show a flat-top multi-lens. Figure 6A and Figure 6B show a slow-sloping top lens with a layered slab-off. Figure 7A and Figure 7 show the slow-sloping top lens. Figures 8A and 8B show a hybrid bifocal lens. Fig. 9A and Fig. 9B show a flat top triple focus lens. Figure 1A and Figure 1 show the execution lens. Figure UA and Figure 11 show the s〇la SmartSegTM lens registered by Sola Optical with 2.25D remote correction and +2〇〇D additional power and kept at 6" from the laptop screen. The vertical line or grid of the upper screen 丨 9.5 ". Figures 12A-13B show different lenses with 丨25D remote correction and + 2.25D additional power and held at 6" from the laptop screen, which shows a vertical line taken from the laptop screen 19.5" Grid. Figures 12A and 12B show a Variiux Physi〇 36〇tm lens registered by Essilor. Figures 13A and 13B show a Sola Compact UltraTM lens registered by Carl Zeiss Visi〇n. Figures 1A through 11B show lenses that produce a perceived image interruption. Figures 12A-13B show lenses that do not produce a perceived image break. Intermediate distance zone: A portion or region containing a lens that allows the user to clearly see the optical power at an intermediate distance. The intermediate distance zone can also be referred to as the intermediate vision zone. Intermediate distance: For example, the distance we watched when reading newspapers, when working on electricity, 130295.doc 21 200912425, when cleaning the dishes in the sink, or when ironing clothes. This distance is usually (but not always) considered to be between about 16 pairs and about 29 hours from the eye. The intermediate distance can also be referred to as the intermediate viewing distance and the intermediate distance point. It should be noted that "intermediate distance" can also be referred to as "near_intermediate distance", because the close distance is from about 丨〇 to about 6 o'clock from the eye. Or, about 16 &" Only a part of the intermediate distance " can be called "near intermediate distance". " far-intermediate distance" will not be confused with "middle distance". „ far-intermediate distance, instead of about 29吋 to about 5呎 (or 1〇呎) from the eye. 1.- Lens. Any device or part of a device that causes light to converge or diver. The lens can be refracted or wound. The lens may be concave, convex or flat on one or both surfaces. The lens may be spherical, cylindrical, meandered, or a combination thereof. The lens may be made of optical glass, plastic, thermoplastic resin, thermoset. Resin, a composite of glass and resin, or a composite of different optical grades of resin or plastic. The lens can be referred to as an optical component, an optical preform 'optical wafer, a finished lens blank, or an optical device. It should be noted that within the optical industry, a device may be referred to as a lens even when it has zero optical power (referred to as flat or no optical power). Lenses are typically oriented when the lens is wearable, such that The long range of the lens is at the top and the close part is at the bottom. Terms, upper, ', 'lower', 'above', "lower "vertical", "level", "upper"'"under&Quot;, "Left,", "Right,", "Top", and Bottom " can be obtained relative to this orientation when used with a reference lens. . Blank • A device made of an optical material that can be shaped into a lens. Translucent ", which means that the lens screams its two outer surfaces to form a refractive outer surface. The trimmed lens representation has an optical power that can be any optical power including zero 130295.doc -22-200912425 or flat optical power. The lens can be trimmed and the lens arm carries the wrong master a, and the lens blank has been shaped to have only one trimmed refractive outer surface. The lens (4) may be an "unfinished" lens, which means that none of the outer surface of the lens is formed into a refractive table: Untrimmed or semi-finished lens blank untrimmed

Ο Free-forming manufacturing process or trimming with more traditional surface work and polishing. The trimmed lens stub has not been shaped, trimmed, or modified to fit into the eyeglass frame. For the purposes of this definition, the finished lens strand is a lens. However, once the lens column is shaped, trimmed, or modified to fit the eyeglass frame, it is no longer referred to as a lens. A multi-focal lens with a line: a multifocal lens having two or more adjacent regions of different optical power, having a visible discontinuity that can be seen by someone viewing the wearer of the lens. This discontinuity causes a perceived interruption in the image between two or more regions. Examples of multi-focal lenses with lines are lined (non-mixed) double intersection or triple focus lenses. Wireless multifocal lens · Multifocal lens with two or more adjacent regions of different optical power, without discontinuity between two or more regions, such as progressive multifocal lenses Or between two or more regions having invisible discontinuities that are not visible to someone wearing the wearer of the viewing lens. This discontinuity causes a perceived interruption in the image between two or more regions. An example of a multifocal point lens having a discontinuous wireless pattern is a hybrid bifocal lens. PAL may also be referred to as a wireless multifocal lens, but PAL does not have discontinuities. 130295.doc -23- 200912425 Low additional power PAL: A progressive multifocal lens with less than the interception I + t _ and the necessary near-additional optical power that the wearer clearly sees at a near viewing distance. The low-power-advanced progressive optical power zone clearly sees the necessary near-area at the distance. Multifocal lens: A lens with more than one focus or optical power. Examples of such lenses that can be static or dynamic multifocal lenses include dual

Focus lens, trifocal lens or progressive multifocal lens. Dynamic multi-point lenses include, by way of example only, electroactive lenses. Depending on the type of electrode used, the electrical μ applied to the electrode, and the refractive index that changes within the thin layer of liquid crystal, various optical powers can be formed in the electroactive lens. Dynamic multifocal lenses also include, by way of example only, lenses comprising suitable optical components, such as glass lenses and fluid lenses, mechanically adjustable lenses that adjust the optical power of two or more movable components, or electrical meniscus lenses. . Multifocal lenses can also be a combination of static and dynamic. For example, an electroactive element can be used with the following

U-domain: progressive optical power lens communication with less than the wearer's close-up additional optical power: a static spherical lens, a static single vision lens, a static multifocal lens (such as 'only for example' a progressive multifocal Lens), a flat top 28 bifocal lens, or a flat top 7χ28 trifocal lens. In most, but not all, cases, the multifocal lens is a refractive lens. In some cases, the multifocal lens may comprise a combination of diffractive optics and/or diffractive and refractive optics. The detachment area 3 has a portion or region of the lens that allows the user to clearly see the power of the light at a close distance. The close range can also be referred to as the near vision zone. 0 130295.doc 24- 200912425 Close range: For example only, the distance we see when reading a book, when threading a needle, or when reading a description on a vial. . This distance is usually (but not always) considered to be between about 1 〇吋 and about 16 距 from the eye. Close range can also be referred to as near observation distance and close distance point. Office Lens/Office PAL: A specially designed professional progressive multifocal point lens that replaces the long range vision zone with a primary intermediate distance vision zone and typically provides near vision in the close range and mid-range vision in the intermediate zone. The optical power is reduced from the close range to the intermediate distance zone. The total optical power 〇 is reduced to a smaller optical power change than the typical close-range additional power of the wearer. Therefore, a wider intermediate distance vision is provided by a wider channel width and also by a wider reading width. This is done by means of an optical design that generally allows for improper astigmatism that fits a larger value above the cross. Because of these characteristics, such PALs are well suited for desk work, but we cannot drive a car or use such PALs to walk around the office or home because the lens contains little, if any, remote viewing area. Target lenses: - lenses for vision correction, including (for example only U) ophthalmic lenses, contact lenses, intra-ocuiar lenses, corneal bodies, and corneal on -lay). Optical communication: a combination of two or more optical power regions aligned in such a way that light passes through the aligned regions and undergoes a sum of optical power equal to each individual region at the point at which the light passes. The state of power. These regions can be embedded in the lens or on the opposite surface of the same lens or different lenses. Optical power area: The area of the lens with optical power. Platform for optical power: A region or region of a lens that has a horizontal width across a region or region and/or a straightforward length of the lens. Alternatively, the change in optical power may be an average of about 0.05 D or less per millimeter across the horizontal width and/or vertical length of the region or zone. As a further alternative, the optical power change can be an average of about 0.10 D or less per millimeter across the horizontal width and/or vertical length of the region or zone. As a final alternative, the optical power change can be an average of about 0.20 D or less per millimeter across the horizontal width and/or vertical length of the zone or zone. The area or zone may have approximately a claw or a greater horizontal width and/or vertical length. As an alternative 'area or zone may have a horizontal width and/or a vertical length of from about 1 mm to about 3 mm or more. As a final alternative, the regions or zones may have a horizontal width and/or a vertical length of from about 2 to about 6 mm or greater. The optical power platform allows vertical stability and/or horizontal stability of the optical power in the area. The platform of the optical power can be visually identified by the wearer of the lens by moving it up and down or by viewing left and right. If the area has a platform for optical power, the wearer will notice that the object at a given distance extends through the area to substantially maintain focus. The area or zone may be the long range of the lens, the upper far-middle distance zone, the intermediate zone zone, the close range zone, the lower far-middle zone zone, or any other zone. Progressive multifocal area: PAL-continuous area that supplies a continuous, increasing optical power between the remote area of the pAL and the close range of the PAL. The additional power is about +〇 or less in the long range at the beginning of the area. In some cases, the region may supply a reduced optical power after reaching full additional power in the close range of the lens. Progressive multifocal surface: One continuous surface of PAL, which supplies the distance of pAL 130295.doc -26- 200912425 A continuous, increasing optical power between the distance zone and the PAL close range. The additional power in the remote zone at the beginning of the surface is about or less. In some cases, the surface may be supplied with a reduced optical power after reaching full additional power in the close range of the lens. Progressive optical power region • a region of a lens that typically has a first optical power in an upper portion of the region and typically a second optical power in a lower portion of the region, wherein optical power exists between the two Continuous change. The progressive optical work _ region can be on one of the lenses or in the lens. The progressive optical power region may comprise one or more surface configurations referred to as "progressive optical power surfaces." The progressive optical power surface can be on either surface of the lens or embedded in the lens. It is believed that the progressive optical power region begins with •, or "start" when the optical power increases beyond the optical power of the adjacent vision zone. Usually, this increase is positive light power of +〇.12D or more. The increased optical power at the beginning of the progressive optical power region can be caused by a substantially continuous increase in positive optical power. Alternatively, the additional power at the beginning of the 'gradual optical power region' may be caused by a step of the optical power rate of a portion of the progressive optical power region or a portion of the different optical power regions. The step of optical power can be caused by discontinuity. The optical power of the progressive optical power region can be reduced after reaching its maximum additional power. The progressive optical power region can begin at or near the mating point as in a conventional progressive multifocal lens or can begin below the mating point as in embodiments of the invention. Reading Width: The narrowest horizontal width in the close-view portion of the lens, which provides a clear, substantially distortion-free correction by observing the optical power within the optical power correction by the wearer's 0.25D close range. 130295.doc •27· 200912425 Short channel length: Due to the aesthetic focus or tendency of the eyewear style, it may be necessary to fit the vertically shortened lens into a frame pattern with a narrow, vertical height. In this lens, the passage is also naturally shortened. The short channel length refers to shortening the length of the channel in the lens. These channel lengths are usually (but not always) between about 9 mm and about 13 mm. Generally, a shorter channel length means a narrower channel width and more improper astigmatism. Shorter channel designs are sometimes referred to as having certain features associated with hard " progressive multifocal lens designs because the transition between distance correction and close distance correction is due to the length of the shorter vertical channel The optical power is steeper and harder. Soft progressive multifocal lens: A progressively multifocal lens with a gentle transition between long range correction and close distance correction. This relatively flat transition caused an increase in the political light. In soft pAL, an increased amount of improper astigmatism can invade an imaginary horizontal line extending across the lens through the mating point. Soft PALs can also have longer channel lengths and wider channel widths. "Modified Soft Progressive Multifocal Lens" is a soft pal with a modified optical design that has one or more of the features of a hard PAL, such as a steeper optical power transition, a shorter channel, Narrow channels, more improper astigmatism propelled into the viewing portion of the lens, and more improper astigmatism below the fit point. 'Static lens: A lens with optical power that cannot be changed with the application of electrical energy, mechanical energy or force. Examples of static lenses include spherical lenses, cylindrical lenses, progressive multifocal lenses, bifocal lenses, and trifocal lenses. Static lenses can also be referred to as fixed lenses. The step of optical power can cause two optical power discontinuities. Optical zone or optical power difference between 130295.doc -28- 200912425. The optical power knife difference can be the optical power optical power between the upper part and the lower part of the lens to increase the light power difference = first power Step down, where the optical power is reduced between the lower part of the upper part of the lens. For example, if

##奎曰丨λ, the upper part of the brother has a power of +1.00D, then +〇.5〇D of the light step will be generated immediately after the optical power step (or discontinuity).之下'D light power of the lower part of the lens. The optical power in the lower area is said to be the step of light power, shape attack 0 improper astigmatism: not found in the lens. u, Shi, ^ J + Tian Sanxian, which is not part of the patient's vision correction, is the product of the lens that is attributed to the smoothing gradient of the optical power combining the optical power of the two optical power zones. The lens may have a variation of improper astigmatism across different regions of the lens of various diopter, but the term ''inappropriate astigmatism') generally refers to the largest improper astigmatism found in the lens. Improper astigmatism can also be characterized as improper astigmatism that is positioned within a particular portion of the lens relative to the entire lens. In this case, the modifier is used to indicate that only improper astigmatism within a particular portion of the lens is considered. The wearer of the lens will feel that the astigmatism is blurred by the lens and/or "true." It is well known and accepted in the optical industry that as long as the improper astigmatism and distortion of the lens is about 1.00 D or less, the user of the lens will hardly notice in most cases. Vertical stability of optical power: A region or region of a lens having substantially good optical power that spans the vertical length of the region or region. Alternatively, the optical power change can be an average of about 0.05 D or less per millimeter across the vertical length of the region or zone. As an alternative, the optical power change can be an average of about 〇.1〇D or less per millimeter of the vertical length of the region or zone 130295.doc -29-200912425. As a final alternative, the optical power change can be an average of about 0.20 D or less per millimeter across the vertical length of the zone or zone. The area or zone may have a vertical length of about 匪 or greater. As an alternative, the region or zone may have a vertical length of from about imm to about 3 mm or more. The final replacement area or zone may have a vertical length of from about 2 mm to about 6 mm or more. The area or zone may be the long range of the lens, the upper far-middle distance zone, the intermediate zone zone, the close zone zone, the lower far-middle zone zone, or any other zone. Vertical Stability of Vision: It is believed that a region or region of the lens has vertical stability of vision in the region or region with substantially constant clear vision when viewed by the user across the region or region. However, it should be noted that although PAL has clear vision from a long range to a close range, the optical power between such areas is mixed. Therefore, PAL has a mixed stability of vision between a distant area and a close range. Therefore, 卩^^^ has a very limited vertical stability of optical power between the distant zone and the close zone. The area or zone may have a vertical length of about 1 mm or more. As an alternative, the regions or zones may have a vertical length of from about 1 mm to about 3 mm or more. As a final alternative, the zones or zones may have a vertical length of from about 2 mm to about 6 mm or more. The area or zone may be a long range of lenses, an upper far intermediate distance zone, a middle distance zone, a close range zone, a lower far-middle zone zone, or any other zone. The invention disclosed herein relates to embodiments of optical design, lens and eyeglass systems that address many, if not most, of the problems associated with PAL. Furthermore, the invention disclosed herein significantly eliminates the majority of the visual impairment associated with pal 130295.doc • 30- 200912425. SUMMARY OF THE INVENTION The present invention provides a means for achieving a suitable long range, intermediate distance and close range optical power for a wearer while providing substantially continuous focusing capabilities for various distances. The present invention may also provide a means for providing the wearer with an appropriate upper far-middle distance and/or lower far-intermediate distance optical power while providing substantially continuous focusing capabilities for various distances. The invention disclosed herein has an improper astigmatism that is much smaller than PAL. The invention disclosed herein allows for full range of presbyopia corrections with additional power from +1 〇〇〇 to +3.50 D in steps of +0.12D or +〇 25D. For additional power prescriptions of +3 〇〇d 〇 t, the present invention typically maintains improper astigmatism at a maximum of about 1.00 D or less. For certain high additional power prescriptions (such as 〇D +3.2 5D ' and +3.50D), the present invention typically maintains improper astigmatism at a maximum of about 1.50D. Embodiments of the inventive lens and lens designs disclosed herein allow for the optical combination of two discrete optical elements into one multifocal lens. The first optical member 70 can have a substantially spherical power region that supplies a substantially spherical optical power. The second optical element can have a progressive supply of - supply-progressive optical power. ^ Power Zone ° The second optical component that supplies progressive optical power does not provide sufficient additional power for the user to clearly view at close range. Supply - the first part of the Μ spherical power - the optical element provides - in addition to the optical power other than the optical power supplied by the second optical (4) to allow the producer to clearly see at close range. Since the portion of the additional power is provided by the first optical TG member that supplies substantially spherical optical power, the multifocal lens has less astigmatism than the PAL having the same total additional power. In an embodiment of the invention, the first optical element may be a buried diffractive optic having a refractive index different from that of the surrounding material of the lens 130295.doc • 31 - 200912425. In another embodiment, the 'optical optical element can be a buried refractive optical device having a refractive index different from the material surrounding the lens. In another embodiment, the first optical 7C member can be a buried electroactive element. In another embodiment, the first light can be on one or both surfaces of the lens and can be formed, for example, by grinding, surface casting, stamping, or free forming one of the outer surfaces of the inventive lens. Come on. In an embodiment of the invention, the second optical element may be on one or both surfaces of the lens and may be, for example, by grinding, molding, surface casting, stamping, or free forming one of the lenses of the present invention. The surface is provided. In another embodiment 10, the second optical element can be embedded within the lens and have a gradient of refractive index that is different from the refractive index of the material surrounding the lens. Typically (but not always), if one of the optical components is embedded in the lens, the other optical component is located on one or both outer surfaces of the lens. In one embodiment of the invention, the first optical 7L member that supplies substantially spherical optical power is in optical communication with at least a portion of the second optical component that supplies progressive optical power. In another embodiment, a first photonic element that supplies substantially spherical optical power and a second optical element that supplies progressive optical power are mathematically grouped into a single optical element that can refract surface outside of one of the lenses Upper or buried in the lens. Embodiments of the present invention provide for proper alignment and positioning of a first optical 7G component that supplies substantially spherical optical power and a second optical component that supplies progressive optical power. Embodiments of the present invention also provide for the amount of optical power provided by the substantially spherical power region, the amount of optical power provided by the progressive optical power region, 130295.doc • 32-200912425, and the optical power of the progressive optical power region. design. Embodiments of the present invention also provide for the size and shape of the substantially spherical power region and the size and shape of the progressive optical power region. The combination of these design parameters allows for a very advanced optical immersion' which has less improper astigmatism and distortion and a wider channel width and shorter channel length than the current state of the art PAL. It should be noted that the drawings and any features shown in the figures are not drawn to scale. Figure 14A shows a view of a front surface of a lens in accordance with an embodiment of the present invention. Figure 14B shows a view of the front surface of a different embodiment of the present invention. Figures 14A-14B show the convex surface of the inventive lens having two regions of optical power. The first optical power region is a remote separation region 1410 in the upper portion of the lens. The first optical power region is a substantially spherical power region 1420 that supplies additive optical power in the lower portion of the lens. In Fig. 14A, the substantially spherical power region is in the shape of an arcuate segment of the lens. The arcuate segment can be thought of as a circular region having a diameter that is much larger than the diameter of the lens. Since the circular area is too large for the lens, only the top of its circumference is arcuately fitted within the lens. In Fig. 14B, the substantially spherical power region has a circular shape. The approximate spherical power region is positioned below the mating point 1430. Alternatively, the approximate spherical power region can be positioned at or above the mating point. The discontinuity of optical power exists between the long range and the substantially spherical power area. At least a portion of the discontinuity may be mixed by a mixing zone 144 that is positioned between the two optical power regions. The mixing zone can be about 2.0 mm wide or less or about 〇 5 mm wide or smaller. Figure 14C shows a view of the back surface of the lens. Figure uc shows the back concave surface of the lens with a progressive optical power region 145 供应 that supplies the added light power. It should be noted that when a progressive optical power region is found on the concave surface of the lens, ^ 130295.doc -33- 200912425

In most (but not all) cases, the concave surface also contains a torus curve to correct the astigmatic refractive error of the patient. The progressive optical power region begins below the mating point of the lens. Alternatively, Figure 14D shows a progressive optical power region starting at or near the mating point of the lens. When the progressive optical power region begins at an upper edge of the substantially spherical power region, as in Figure 14D, an optical power step 1470 is provided that is added to the beginning of the progressive optical power. Optical power. When the progressive optical power region begins above the substantially spherical power region (not shown), the upper edge of the substantially spherical power region causes discontinuities in the channel across the progressive optical power region. Figure 14E shows a cross-sectional view of the lenses of Figures i4A and 14C taken through the center vertical line of the lens. As can be seen in Figure 14E, a long range optical power 1415 is provided in the remote zone. The substantially spherical power region and the progressive optical power region are aligned to optically communicate with each other such that the optical power supplied by each region is combined in the close range 146A to provide the user with a total near-field additional power 1465. The progressive light power region begins below the mating point and ends at or above the bottom of the lens. Figure 14F shows the inventive lens from the front showing the placement and optical alignment of the optical power regions of Figure 14A and Figure on the front and back surfaces of the lens. Figure UG shows the inventive lens from the front showing the placement and optical alignment of the optical power regions of Figure 14B and Figure on the front and back surfaces of the lens. As can be seen in both the graph "f and the graph "G, the 'gradual light power region starts at at least a portion of the substantially spherical power region and is spaced apart and below the discontinuity. As mentioned above' in the present invention In some embodiments, the approximate spherical power region, the mixing region, and the progressive power zone can be mathematically combined and 130295.doc -34- 200912425 located on the single-surface of the lens. In one example of this embodiment, the wearer of the lens does not require remote correction and requires close proximity correction of +2 25D. Figure Isa shows the approximate spherical work = area 1510 in the bottom portion of one of the surfaces of the lens. The lens has a mixing zone (four) that transitions between the optical power in the remote zone and the optical power of the substantially spherical power zone. By way of example only, in the lens of Figure 15A, the substantially spherical power zone - The domain has an optical power of +1.25 D and the remote zone has a flat optical power. The figure illustrates the progressive optical power region located on the surface of the lens. This area may be referred to as being on the convex surface, the concave surface, or both the convex surface and the concave surface. In the example lens alone, the progressive optical power region has a +1, _ additional work rate 15 = (10) a single surface of the inventive lens, which is the surface of the lens shown in Figure a and in Figure 15B. A combination of the surfaces of the lenses shown. By way of example only, in the inventive lens of Figure 15C, the optical power at the close range is +2.25" for the optical power of +1.2 buckles supplied by the substantially spherical power region The combination of the power supplied by the progressive optical power region + 1. The combination of the power of the 4 powers. It should be noted that in the picture, the progressive optical power region 35 is optically aligned to start at the portion of the substantially spherical power region, and They are 'spaced apart' and below the mixing zone. In some embodiments of the invention 'two surfaces can be combined by mathematically adding the geometry of the two surfaces to form a new single surface. The new single-surface can then be fabricated from a mold. The mold can be produced by freeform or by diamond turning. The mold can be used to produce semi-trimmed lens representations that can be surfaced by any optical laboratory. 130295.doc -35 - 2009124 25 By describing the parent of the two surfaces as a geometric function in the Cartesian coordinates, the surface in Figure 15A can be mathematically combined with the surface depicted in Figure 15B to form Figure 15C. The new surface is shown, the new surface is a combination of two surfaces. The surface defining or generating the approximate spherical power region and the mixing region can be divided into discrete segments of equal size. Each segment can be described as being relatively fixed Regionalized height or regionalized curve of surface or fixed curvature. This surface can be described by the following equation: Ζι(χ,β=£|>(Ά) /'=0 y=〇 Similarly, it can be defined or The surface that produces the progressive optical power region is divided into discrete segments of equal size, which segments are as large as the segments mentioned above, and each segment can be described as being relative to a fixed surface or fixed The regionalized height or regionalization curve of curvature. This surface can be described by the following equation: U " /'=0 y=〇If the sections of the two surfaces are the same size, combine the sections from each surface Directly. Then by two surfaces A simple superposition or a formula is used to describe the combined surface: Ζ, {χ, γ) = Ζ λ (χ, γ) + Ζ 2 {χ, γ) 130295.doc -36- 200912425 This process is illustrated in Figure 15D. The size should be as small as possible to achieve a per-surface representation. In addition, the progressive optical power region can be optimized after combining the two surfaces, or the progressive optical power region can be optimized in advance for more It is good to combine the approximate spherical power region and the mixed region. If necessary, the mixed region and the combination of the approximate spherical power region and the progressive optical power region may be combined. The US Patent Nos. M83, 9l6 and w〇〇iey of Menezes may also be used. The two surfaces are combined by the method described in U.S. Patent No. 6,955,433, the disclosure of which is incorporated herein by reference. The inventors have found that the importance of a range of distances has never been corrected in the same way in ophthalmic technology. This range of distances is between about 29 吋 and about 5 , and has been found to be particularly important for tasks such as focusing on the far edge of my office table. In the prior art, this range of distances has been largely ignored, and in the prior art definitions this distance range is mixed with the categories of long distances or intermediate distances. Therefore, this range of distances has been corrected as part of one of these categories. The inventor referred to this range of distances as "far-intermediate distance". The invention has been invented as the "far-intermediate distance zone, a new visual zone to provide an appropriate focus for this inventive far-intermediate distance b Embodiments of the invention may include this far-intermediate distance zone and may optimize the optical power in this zone to provide an appropriate focus capability for the far-intermediate distance. Embodiments of the invention may include this far-intermediate distance zone The position of this region in the lens can be optimized to provide proper ergonomic use of the lens. When this region is positioned between the remote zone and the intermediate zone, it is referred to as "upper and middle distance zone ". When this zone is located below the close range, it is called 130295.doc -37- 200912425 "lower far-middle distance zone". Often the 'pre-technical multifocal lens does not provide the proper focus capability at the far-intermediate distance or provides only a limited focus capability at the far-intermediate distance. s, the far-distance region or region of the bifocal lens is for individual wearers. The prescription is prescribed to allow for focusing at a far viewing distance (such as an optical infinity of about 2 〇呎 or greater). However, it should be noted that in most cases, the same long range optical power will be sufficient for the wearer at an observation distance of about 5 Torr or greater. The close range of the bifocal lens or p 11 is pre-specified to allow for focusing at a near viewing distance of about 1 (four) to about 16 o'clock. This force is at the far viewing distance, near the viewing distance, and at the intermediate viewing distance ( Appropriate focus pressure from approximately 16 吋 to approximately 29 吋). PAL provides a clear continuous visual power between the far viewing distance and the near viewing distance, and the vertical stability in the transition zone of PAL is very limited due to the continuous transition of the PAL light power from the long range to the close range. {(5) In PAL' The inventive lens disclosed herein can provide a special "region or a vertical stability in a region". The vertical stability in the region can be provided by the step of optical power that can cause discontinuities. . In addition, the inventive transvestite may provide a step 4 or a plurality of steps that are least smeared to the wearer's vision. Moreover, the inventive lens can provide a step or a plurality of steps, so that when we look at the wearer's face of the lens, it is generally seen to see such steps. The inventive lens can also provide a step or steps such that the wearer's eyes can be viewed between zones (eg, when viewed from a remote zone to a close zone) in steps or steps Panning comfortably. Finally, in some embodiments of the invention, 130295.doc • 38· 200912425, the day of the day, the music, the illuminating lens provides about 4 to 5 sighs from the wearer's eyes and about 12 to slaves. The continuous uninterrupted focus ability' has only a single (four) birth that is comfortably transitioned between the wearer (four) between the object and the object that is less than 4 to 5 sag from the wearer's eye. In other embodiments of the invention, the step of optical power occurs between the remote zone and the intermediate zone, whereby the inventive lens allows for about 29 inches from the wearer's eye. 1 〇 continuous uninterrupted focusing ability between 12 o'clock and with only a single discontinuity through the comfort transition between the wearer focusing on a distant object and the object at about 29 leaves from the wearer Sex. In embodiments of the invention, it may be necessary to align the substantially spherical power region with the progressive optical power region to ensure that the correct total optical power is provided in the far-middle region and in the mid-space separation region. The far-intermediate distance zone typically has an additional power between approximately 2% and approximately 44% of the additional power at close range. The intermediate distance zone typically has an additional power between approximately peach and approximately 55% of the additional power at close range. It may also be necessary to align and position such areas to form an available and ergonomically flexible lens for use in the wearer's line of sight in various zones (distance zone, far_intermediate zone zone intermediate distance zone, and When the transition between the close range). Finally, it may also be necessary to design a gradient of optical power that exists between distance vision correction and near vision correction to ensure optimal intermediate distance correction and/or far-intermediate distance correction. In one embodiment of the invention, the substantially spherical power region is positioned between about 0 mm and about 7 mm below the mating point. In another embodiment of the invention, the substantially spherical power region is positioned between about 2 mm below the mating point and 130295.doc • 39-200912425^ about 5 coffee. In an embodiment of the invention, the progressive optical power begins at about one of the approximately spherical power regions below the top edge of the substantially spherical power region. In another embodiment of the invention, the progressive optical power zone begins at a portion of the substantially spherical power region of about 4 to about 8 points below the top edge of the substantially spherical power region. In an embodiment of the invention, the far-intermediate distance power should originate between about 3 and about 4 below the mating point and about 4 mm down the channel. In an embodiment of the invention,

The intermediate distance power should start after the far middle distance zone and extend down the channel by about 3 mm to about 4 mm. The foregoing measurements are illustrative only and are not intended to limit the invention. Ο If the approximate spherical power area and the progressive optical power area are not properly aligned and positioned, the user of the lens will not have the proper vision correction in the available portion of the lens. For example, if the approximate spherical power region is positioned much higher than the mating point, the wearer can have too much optical power for long-distance viewing when viewed in a straight line. As another real {column, if the 16 additional power progressive optical power region is positioned too high in the lens, the combined optical power in the intermediate distance region provided by the substantially spherical power region and the progressive optical power region may be for the wearer. Too high. Figures 16 and 17 show three conventional PAL designs with a close range of additional power of +1.25D (Essilor PhysioTM lens by Essilor, Essilor EllipseTM lens by Essllor, and trademarked by Shamir Optical) Shamir PiccoloTM lens). Figure 16 shows an additional power ladder for three lenses measured by Rotlex Class P1ustm 130295.doc -40 - 200912425 degrees. Figure 17 shows the measurement obtained from the mating point of the three lenses in the three lenses as measured by RoRox Class PIustm of the RoUex registered trademark along the additional power channel down every 3 mm. Figure 18 shows the measurements obtained from the mating point along the additional power channel down every 3 mm in three embodiments of the invention. In these embodiments, the three lenses of Figures 16 and 17 are in optical communication with a substantially spherical power • region having optical power of +1, 〇〇D. In these embodiments, the progressive optical power region begins at the mating point and the top edge of the substantially spherical power region is placed just below the f) mating point. As can be seen from the figure, the additional power of the lens at 9 mm below the mating point is too strong. The area of the lens at 9 mm below the fit point may be part of the intermediate distance zone. For the close-range additional power of +2.25D, the intermediate distance additional power should be +1, 12D. However, the Essilor PhysioTM embodiment has an additional power of +1.63 9 9 mm from the mating point, and the Essilor EllipseTM embodiment has an additional power of +1.82 D at 9 mm from the mating point, and the shamir PiccoloTM example is Additional power of +1.68D from 9 mm from the mating point. Since there is too much additional power in the intermediate distance zone, the user of the lens may feel that his or her eyes are pulling or traversing. This situation can cause headaches and the user will have to hold the object closer to his eye to properly focus through this area. Therefore, if the optical power, placement, and alignment of the approximate spherical power region and the progressive optical power region are not optimized, the resulting lens will have one or more of the following: poor vision ergonomics, poor vision Comfort, and poor vision clarity. As another example, Figure 19 shows an embodiment of the left-hand inventive lens as measured by R〇tlex Class PlusTM and the right Essil® 130295.doc • 41 - 200912425

Physio-additional power gradient for both lenses. Inventive lens and Physi. Both TM lenses have an additional power of +2.25D. The diurnal lens has a substantially spherical power region having an optical power of +1.25 D and a progressive optical power region having an optical power of + 1. The top of the progressive optical power region starts just below the mating point and the top of the approximate spherical power region is located 4 mm below the mating point. Thus, prior to the initial addition of optical power to the lens in the substantially spherical power region, there is one region of the lens in which only the progressive optical power region supplies increased optical power. Figure 2 shows the measurement obtained from the mating point along the additional power channel down every 3 mm of the two lenses as measured by the R〇Uex Class P1USTM. This embodiment of the inventive lens has +1 6 〇 1) 9 mm from the mating point compared to the embodiment of the physi 〇 TM having an additional power of +1.I0D from the mating point 9 melon (1). : Add power. As previously mentioned, the silk optimizes the optical power, placement, and alignment of the approximate spherical power region and the progressive optical power region, and the resulting lens will have poor vision ergonomics, poor visual comfort, and good vision clarity. This is especially true when the lens provides the correct full additional power at 15 111111 below the mating point in Figures 18 and 20. Thus, although such embodiments of the inventive lens have various excellent properties as compared to the state of the art, it should be apparent that such lenses can be rejected by the user. Embodiments of the inventive lens have too much additional power in the intermediate distance zone and the optical power gradient from the mating point to the bottom of the lens is too steep. By comparing the additional power measurements shown in Figure j 8 and Figure 2 for the Essilor Physi0TM lens, it should be apparent that we cannot add the +1 (10) D spherical power region to the Essilor Physi® lens of Figure 17 and thus to Figure 2 〇130295.doc • 42-200912425 Essilor Physi〇TM lens. Therefore, it should be apparent that the substantially spherical power region and/or the progressive optical power region must be specifically designed to provide an appropriate intermediate distance correction and/or far-intermediate distance in consideration of the gradient of optical power between the remote and close regions. Correction. Figure 21 shows four regions of the inventive lens: a remote zone - an upper far-intermediate zone 2120, an intermediate zone 213 and a close zone 2140. These areas are not shown to scale. The upper far-middle distance zone may have a height from the point Η to the point I and a width from the point a to the point β. The mid-range separation area may have a height from a point to a point j and a width from a point c to a point D. The close-up area may have a height from the point J to the point G and a width from the point e to the point f. In certain embodiments of the invention, the inventive lens provides the wearer with appropriate corrections for the remote and close regions and provides optical power that allows the wearer to properly view at the far-intermediate and intermediate distances. Optimize the gradient. In some embodiments of the invention, the lens may have vertical stability of vision in the upper distal-middle distance zone and/or vertical stability of vision in the intermediate zone. In embodiments of the invention that do not have a far-intermediate zone, the intermediate distance zone may have increased vertical stability of vision. An additional far-middle distance zone can be provided below the close range. In this embodiment, this region may be referred to as the "lower" far intermediate distance zone, and the far-middle distance zone between the far zone and the intermediate zone may be referred to as "upper" region. The upper and lower far-middle zones can have the same optical power. The lower far-middle zone can be included in the inventive lens design to allow the presbyopic wearer to more easily see his or her feet when looking down. This situation provides additional safety when going up and down the stairs. 130295.doc -43. 200912425 Embodiments of the invention may include one or more discontinuities between regions of the lens. The discontinuity can be caused by a discontinuous surface or by discontinuous optical power between two different regions of the lens. The discontinuity can be caused by the stepping or stepping of the optical power. Discontinuity is defined as any change in the surface of the lens or the optical power of the lens that produces a perceived image break when viewed through the lens. By way of example only, the inventors have made a variety of inventive transmissive lenses, and have found that when the lens has less than about (the optical power of the MOD is not continuous, and when the lens is worn with the lens typically used) It is difficult to feel the interruption of the image when it is located at a distance from the eye-catching distance. However, in most cases, optical power discontinuities greater than about 〇〇1〇〇 to 〇12D can be visually detected. In addition, the lens is This optical power discontinuity that the wearer can feel can interfere with the wearer's vision during certain visual tasks (eg, viewing a computer screen). It should be noted that the optical power stated above for discontinuity is only an example' And discontinuity is any change in the surface or optical power of the lens that produces the ability to sense image discontinuities when viewed through the lens. (The inventors have further confirmed that some discontinuities are more pronounced than others and / J $ There is more interference. Accordingly, embodiments of the present invention may include one or more discontinuities that are less noticeable and/or less interfered. The inventors have discovered that the intermediate distance zone, the close distance zone The discontinuity of the discontinuity or intermediate distance zone is closer to the discontinuity between the close and the squat zone, and the user visually better endures the discontinuity between the far distance zone of the lens and the upper distance zone Furthermore, the inventors have demonstrated that due to the faster transition of the eye in any image interruption or blur formed by the mixing zone, the narrower the width of the mixing zone of at least a portion of the mixing discontinuity, the eye is in discontinuity The better the transition. Although 130295.doc -44 - 200912425 this situation may seem to indicate discontinuity and therefore should not be mixed, but this situation must be balanced by the favorable appearance effect of the mixing discontinuity to form an almost invisible discontinuity. Embodiments of the inventive lenses disclosed herein consist of one or more discontinuities, wherein a discontinuity can be caused by a step of optical power of +0.12 D or greater. The inventive implementation disclosed herein. An example may have a single discontinuity that is at least partially mixed by a mixing zone having a width of less than about 2.0 mm or between about 丨〇1 and 〇5. The mixing zone of this width may be Diamond turning is produced. However, in other embodiments of the invention, discontinuities are not mixed. In embodiments of the invention, the discontinuity may be more than about +0.25 D and in most cases more than about +〇5 The step of the optical power of 〇D rises to induce a step-up of the S° optical power and thus the discontinuity is usually (but not always) positioned between the far-distance zone of the inventive lens and the far-intermediate distance zone. When the inventive lens does not have a far/intermediate distance zone, the discontinuity is typically located between the far distance zone and the intermediate zone zone of the lens. Figure 26 and Figure 26 show the optical power before the start of the progressive optical power zone. This embodiment of the invention allows for the ability to have three usable zones of optical power: a long range zone, an intermediate zone zone, and a close range zone. Embodiments of the invention may also provide a fourth zone. The ability of the upper zone (intermediate distance zone) and, in some embodiments, the ability to have a fifth zone (lower far-intermediate distance zone). Embodiments of the invention may: a) increase the length of the channel to allow for an additional 2 _ to 3 光 of the optical power M U upper _ middle (four) correction. This optical power zone can be used when using 130295.doc -45- 200912425 on our computer or on the edge of our desk. It should be noted that it is not possible to increase the length of the channel as it would be to accommodate the vertical dimensions of the lens frame of the lens. b) Increase the length of the channel to allow an additional 2 paws to the 3 pawl platform for optical power to provide a lower far-intermediate distance correction. This optical power zone can be useful when viewing the feet or floors of the person while climbing up or down the stairs. Note • It is not possible to increase the length of the channel as it would accommodate the vertical dimension of the lens frame of the lens. p G) Utilization - or multiple discontinuities. The or discontinuity may be caused by - or a plurality of steps of optical power, wherein the step is a step-up or step-down of optical power. Since the discontinuity uses very little (if any) lens immobility to step up or step down the optical power, the channel can be designed to allow a 2 power platform without the need to extend the length of the channel. It is important to note that the greater the step of optical power, the more real estate that can be supplied to the optical power platform in the lens. In an embodiment of the invention, the platform of optical power is supplied after the discontinuity and provides a far-intermediate distance correction. This is done in the case where you need to add the length of the channel. Figure 22 shows an embodiment of the invention with two platforms 223G and 2240 of light; and <23> shows three platforms 233G, measured and 2350 having optical power - an embodiment of the invention. d) Keep the length of the channel the same, but make the optical power tilt faster between the various areas of optical power. It should be noted that this often creates problems with the wearer's visual comfort and eye strain. e) Immediately use the optical power step below the close range to allow the lower 130295.doc -46 * 200912425 back-intermediate distance zone. It should be noted that the lower far-middle distance zone may be possible only if there is sufficient lens real estate below the close proximity portion of the lens. Figure 22 shows the optical power of a central vertical centerline not in accordance with an embodiment of the present invention. This embodiment includes a progressive optical power region that connects the remote zone to the close zone. The figure is not drawn to scale. The optical power in the long range is shown to be flat and thus represented by the parent axis 2210. The progressive optical power region begins at the mating point 2220 of the lens. Alternatively, the progressive optical power region may begin below the mating point. ^ Although the optical power of the progressive optical power region is increased over the length of the channel, the progressive optical power region provides both platforms of optical power within the channel. The first platform 2230 provides an upper far-intermediate distance correction and the second platform 2240 provides an intermediate distance correction. Alternatively, the progressive optical power region provides a single platform of optical power that provides intermediate distance correction or far-intermediate distance correction. The first platform of optical power may have a vertical length of between about 1 mm and about 6 mm or between about 2 mm and about 3 mm along the channel. However, in all cases, the platform of optical power has a vertical length of at least about 1 mm. After the first platform of optical power, the optical power supplied by the progressive optical power region increases until the second platform of optical power. The second platform of optical power may have a vertical length of between about 1 mm and about 6 mm or between about 2 mm and about 3 mm along the channel. After the second platform of optical power, the optical power supplied by the progressive multifocal region increases until the total near-field optical power reaches 2250. After the near-optical power is reached, the optical power supplied by the progressive optical power region can begin to decrease. If the optical power is reduced to approximately 130295.doc •47·200912425 20% to approximately 44% of the additional power in the close range, a lower far-middle zone may be provided. Figure 23 shows the optical power of the center vertical centerline of one embodiment of the invention. This embodiment includes a progressive optical power region that connects the remote zone to the close zone. The figure is not drawn to scale. The optical power spread in the long range is not flat and is therefore represented by the \ axis 2310. The progressive optical power region begins at the mating point of the lens 2320. Alternatively, the progressive optical power region can begin below the mating point. Although the optical power of the progressive optical power region increases over the length of the channel, the progressive optical power region provides three platforms of optical power within the channel. The first platform 2330 provides an upper far-intermediate distance correction, the second platform 2340 provides an intermediate distance correction, and the third platform 235 provides a close distance correction. The first platform of optical power may have a vertical length of between about 1 mm and about 6 mm or between about 2 mm and about 3 mm along the channel. However, in all cases, the platform of optical power has a vertical length of at least about 1 mm. After the first platform of optical power, the optical power supplied by the progressive optical power region increases until the second platform of optical power. The second platform of optical power may have a vertical length along the channel of between about 丨mm and about 6 mm or between about 2 mm and about 3 mm. After the second platform of optical power, the optical power supplied by the progressive optical power region is increased until the third platform of optical power. The third platform of optical power may have a vertical length of between about 1 mm and about 6 min or between about 2 mm and about 3 mm along the channel. After the near-field optical power is reached at 2360, the optical power supplied by the progressive optical power region can begin to decrease. If the optical power is reduced to between about 2% and about 44% of the additional power in the close range, a lower intermediate zone can be provided. 130295.doc -48- 200912425 Figure 24 shows optical power along a central vertical centerline of an embodiment of the present invention. This embodiment includes a substantially spherical power region... discontinuity and - progressive connection of the remote zone to the close zone Light power area. The figure is not drawn to scale. The optical power in the long range is shown to be flat and thus represented by the axis 10. The progressive optical power region begins at or near the mating point 2420 of the lens. The discontinuity period can be caused by a substantially spherical power region that causes a step of optical power and supplies optical power 244 〇. Progressive light The power zone can start above the discontinuity. In this case, the initial phase of the progressive optical power region can be located by measuring the optical power in the remote region and then positioning the region or region of the lens above the discontinuity, above the discontinuity 'lens The optical power begins to gradually increase with positive optical power or with negative optical power. The difference between the optical power just before the discontinuity and the optical power just after the discontinuity is called the "step of optical power". "stepping of optical power" occurs in the case of optical power before the discontinuity 増# to discontinuity.” The step of optical power drops" decreases to discontinuity before the optical power is discontinuous After the situation occurs. Therefore, if the progressive optical power region starts above the discontinuity, the total optical power in the lens is the progressive optical power region and the optical power of the remote region immediately before the discontinuity, and immediately after After continuity, the total optical power in the lens is the optical power caused by the step of optical power and the optical power of the progressive multifocal region and the far range. Alternatively, the progressive optical power region may begin below the discontinuity such that the contact is before the discontinuity, the total optical power in the lens is the long-range optical power, and after the discontinuity, once the progressive optical power At the beginning of the region, the total optical power in the lens is the optical power caused by the step of optical power and the optical power of the progressive multifocal region and the remote region of 130295.doc -49-200912425. The progressive light power area can begin immediately after the discontinuity. Alternatively, the progressive optical power region can begin at a distance of 1 or more millimeters from the discontinuity, thereby forming a platform 2450 of optical power that can be useful for intermediate distance viewing or upper far-intermediate distance viewing. In some embodiments of the invention, the progressive optical power region may have a negative optical power 2460 such that the region reduces the total power in the lens prior to having positive optical power that increases the total optical power in the lens. For example, the optical power caused by the step of optical power can be higher than the optical power required to observe the appropriate far-intermediate distance. In this case, the optical power of the lens can be reduced at the discontinuity and in a portion of the progressive optical power region immediately after the discontinuity to provide proper upper far-intermediate distance correction. The progressive light power zone can then be increased in optical power to provide an appropriate intermediate distance correction 2470. The optical power of the progressive optical power region can be increased step by step until the full-field optical power is 2480, and the optical power of the progressive optical power region can start to decrease again after the full-field optical power of 248 。. If the optical power is reduced to between about 2% and about 44% of the additional power in the close range, a lower far-middle zone may be provided. In embodiments of the invention where the progressive optical power region begins above the discontinuity, the optical power supplied by the progressive optical power region may initially be zero or negative. The discontinuity can be caused by the step of optical power. The optical power caused by the step of optical power can be approximately equal to the optical power required for proper intermediate distance correction or far-intermediate distance correction. Therefore, if the initial optical power supplied by the progressive optical power region is zero, the combined optical power after the discontinuity will be an appropriate intermediate distance correction or a far-intermediate distance correction. Similarly, the optical power caused by the step of light 130295.doc -50- 200912425 Γ power can be greater than the optical power required for proper intermediate distance correction or far-intermediate distance correction. Since a, if the initial optical power supplied by the progressive optical power region is negative, the combined light 2 rate after the discontinuity will be an appropriate intermediate distance correction or a far intermediate distance correction. In any case, the initial gradual optical power region initial soil also provides a positive optical power, and the combined optical power after discontinuity will be too strong. This case has been confirmed as the case in Figs. 16 to 20. In addition, it should be noted that if the step of optical power causes an optical power that is higher than the appropriate intermediate distance correction or the far-intermediate distance correction, the lower additional power progressive optical power region can be used, thereby improving the optical characteristics of the lens. It should be noted that the lower the optical power in the progressive light power region, the less the astigmatism and distortion will be added to the final lens. Alternatively, the optical power supplied by the progressive optical power region may be initially positive in embodiments of the invention where the progressive optical power region begins above the discontinuity. In such embodiments, the optical power caused by the step of optical power can be reduced to less than the optical power required for proper intermediate distance correction or proper far-intermediate distance correction. Therefore, if the initial optical power supplied by the progressive optical power region is positive, the combined optical power after the discontinuity will be the appropriate intermediate distance correction or the far-intermediate distance correction, however, it should be noted that with the substantially spherical region The optical power is equal to or greater than the embodiment of the optical power supplied by the progressive optical power region. The improper astigmatism and distortion in this embodiment are larger in the final lens. Figure 25 shows the optical power of a central vertical centerline along an embodiment of the invention. This embodiment includes a - substantially spherical power region, - discontinuity, and a progressive optical power region connecting the remote region to the close region. The figure is not drawn to scale. 130295.doc 200912425. The optical power in the long range is shown to be flat and thus represented by the X-axis 2510. The discontinuity 2520 can be positioned below the mating point 2530, such as 'about 3 mm below the mating point. The discontinuity can be caused by the substantially spherical power region, which causes the step of optical power, and supplies optical power 2540. The progressive optical power region may originate from one of the substantially spherical power regions. • The portion 'e.g.' immediately after the discontinuity or immediately after 2550. The substantially spherical power region may have an aspherical portion "2560 within about 3 mm to 5 mm of discontinuity. After this portion, the substantially spherical power region may be substantially spherical. The optical power of the progressive optical power region The combination of the optical power of the aspherical portion of the substantially spherical power region can form a combined progressive optical power region having a substantially continuous manner opposite the sharp rise in optical power immediately following the discontinuity. Optical power. The net optical effect is that the optical power step is less than the total optical power 2570 provided by the substantially spherical power region. The aspherical portion and the progressive optical power region allow the total optical power of the substantially spherical power region to gradually evolve after discontinuity. The aspherical portion may provide an appropriate upper far-intermediate distance correction 258. Or, the progressive optical power region may supply additional optical power to provide an appropriate upper far-intermediate distance correction. The progressive optical power region may then add light. Power to provide proper intermediate distance correction 2585. Or, may not provide only proper 'far-intermediate distance calibration The optical power of the progressive optical power region may be further increased until the full close optical power 2590, and the optical power of the progressive optical power region may begin to decrease again after the full close optical power 2590. In an embodiment of the invention, The lower far-intermediate distance correction 2595 may be provided by a step of optical power after the close range. Alternatively, the lower far-middle 130295.doc -52· 200912425 distance zone may be supplied by a negative optical power that reduces the optical power in the lens. A progressive optical power region is provided. Figure 26 shows a "W rate in the center of the center along an embodiment of the invention. This embodiment includes - a substantially spherical power region, a discontinuity, and a remote region connected to the close region. The progressive light power area. The figure is drawn by the scale. The optical power in the long range is shown to be flat and thus represented by the X-axis 2610. The discontinuity 262 定位 can be positioned below the mating point (10) between the remote zone and the upper far-middle distance zone 2640. Alternatively, the discontinuity may be positioned below the mating point between the remote zone and the intermediate zone 2650. The discontinuity can be caused by a substantially spherical power region that causes a step of optical power and supplies optical power 2660. The step-up of the optical power can be equal to the optical power required for the far-neutral distance correction. Or the step of the optical power step can be equal to the optical power required for the mid-range separation correction. The progressive optical power region may originate at a portion of the approximate spherical power region, e.g., immediately after the discontinuity or immediately after 2670. If the progressive optical power region begins below the discontinuity, then a platform of optical power can be provided for the upper far-intermediate distance eight zone or for the intermediate distance zone. The progressive optical power region continues until the full-close optical power is 2680. After the full-field optical power is 268 ,, the progressive optical power region can supply negative optical power that reduces the optical power in the lens. If the light' power is reduced to between about 20% and about 44% of the additional power in the close range, a lower far-middle zone may be provided. In some embodiments of the invention the lens may comprise a platform for optical power of any of the equidistant zones. In an embodiment of the invention, the lens can provide +2 〇〇Ε) near additional power. The lens may comprise a buried substantially spherical power having an optical power of +1.00 D. 130295.doc -53· 200912425

The region, 35, is aligned such that the top edge of the substantially spherical power region is aligned approximately 3 mm below the mating point of the lens. The lens can have a progressive optical power surface' that has a progressive optical power region that is located on the convex outer surface of the lens. Alternatively, the progressive optical power surface can be positioned on the concave surface of the lens, split between the two outer surfaces of the lens, or embedded in the lens. The progressive optical power region has an initial optical power of zero, which increases to a maximum optical power of +1.00D. The progressive optical power region is aligned such that the beginning of its channel with zero optical power begins approximately 10 mm below the mating point of the lens. In other words, the 'gradual optical power region is aligned such that its channel starts at about 7_ below the discontinuity caused by the step-up of the optical power caused by the buried spherical power region. In this inventive embodiment, in the invention, there is no far intermediate distance zone in the lens. However, the intermediate distance zone has a vertical stability that is much greater than the minimum of about 7 of any commercially available PAL lens. As can be readily appreciated, the combined optical power of the progressive optical power and the approximate spherical power region begins approximately 7 rnm below the top edge of the substantially spherical power region. Therefore, the optical power from about 3 faces below the fit to about 1 Gmm below the fit point is the +1 fine light power provided by the approximate spherical power region. This optical power is 503⁄4 of the close-range additional power and thus provides an appropriate _ distance correction. In still further embodiments of the invention, the lens provides a near additional power of +25 〇d. The lens may have a substantially spherical power region having an optical power of +1.25 D which is freely formed on the concave back annulus/astigmatism correcting outer surface of the lens which is aligned such that the top edge of the substantially spherical power region is aligned Approximately 4 mm below the mating point of the lens. The lens may have a progressive optical power region that is located on the convex surface of the lens 130295.doc -54 - 200912425 and has an initial optical power of zero (which is increased to +125D maximum optical power). The progressive optical power region is aligned such that the beginning of its channel begins approximately 10 mm below the mating point of the lens. In other words, the progressive optical power region is aligned such that the beginning of its channel is approximately six degrees below the discontinuity caused by the step-up of the optical power caused by the buried spherical power region. In this inventive embodiment, there is no far-intermediate distance zone in the inventive lens. However, the intermediate distance zone has a visual power that is much greater than approximately 6 of any commercially available PAL lens.

The progressive optical power is approximately perpendicular to the spherical stability. As can be easily understood, the combined power of the field begins after the top edge of the approximate spherical power region (the position at which the top edge of the approximate spherical power region is discontinuous) is greater than the 6th position. Therefore, the optical power at approximately 10 mm from the underside of the fit to approximately 10 mm below the mating point is the +U5D optical power provided by the substantially spherical power region. This optical power is 5〇% of the close-range additional power and thus provides an appropriate intermediate distance correction. The lens can provide +2.25D near additional power in embodiments of the invention. The lens may comprise a buried substantially spherical power region having an optical power of + 〇.75D. The region is aligned such that the top edge of the substantially spherical power region is aligned about 3 mm below the mating point of the lens. The lens can have a progressive optical power surface having a progressive optical power region positioned on the convex outer surface of the lens. Alternatively, the progressive optical power surface can be positioned on the concave surface of the lens, split between the two outer surfaces of the lens, or embedded in the lens. The progressive optical power region has an initial optical power of zero, which increases to a maximum optical power of +1.50 D. The progressive optical power region is aligned such that the beginning of its channel with zero optical power 130295.doc -55-200912425 begins approximately 7 mm below the mating point of the lens. In other words, the progressive optical power region is aligned such that the beginning of its channel is about 4 mm below the discontinuity caused by the step-up of the optical power caused by the buried spherical power region. In this inventive embodiment, there is a far-intermediate distance zone found in the inventive lens. The far-middle distance zone has a vertical stability of vision of a minimum of about 4 mm. There is no commercially available pAL with a far-intermediate distance zone or a far-intermediate distance zone with such long vertical stability. As can be readily appreciated, the combined optical power of the progressive optical power and the substantially spherical power region begins approximately 4 mm below the top edge of the substantially spherical power region. Therefore, the optical power from approximately 3 mm below the fit to approximately 7 mm below the mating point is the +0.75 D optical power provided by the substantially spherical power region. This optical power is 33,33% of the close-range additional power and thus provides proper far-intermediate distance correction. It should be noted that the above embodiments are provided by way of example only and are not meant to limit the distance from the mating point for the alignment of the progressive optical power region or the substantially spherical power region. Moreover, the optical power given in the examples is not meant to be limiting. Further, the position of the region on the surface of the lens, split between the surfaces of the lens, or the region buried in the lens should not be construed as a limitation. Finally, while some of the above embodiments may teach a lack of far-intermediate distance zones, the far-intermediate distance zone may be included by varying the alignment and optical power provided by each zone. In an embodiment of the invention, the spherical power region may be on the surface of the ophthalmic lens or embedded in the ophthalmic lens. The spherical power region can be a refractive power region and can produce optical power in a refractive manner. Alternatively, the spherical power region can be 130295.doc -56- 200912425 power region and can generate optical power in a diffractive manner. For both refractive optical power regions, the optical power is produced by an optical interface between the optical material having a different refractive index and the second optical material. The == rate region can be a segment of one surface of the spherical surface, and its optical power is expressed by the following formula: n2.ni/R, where the umbrella is the light of the refractive power region = Μ (four)' N2 is the refractive index of the first optical material, ^ is the refractive index of the second optical material, and R is the radius of the spherical surface. The diffracted optical power & field can be a circumscribed, surface undulating diffraction structure consisting of a blaze pr〇f concentric ring. This structure is well known in the art. The optical power of this diffracted optical power region It is defined by: η=[(2α)/Φ]"2, where ri is the design wavelength of the diffracted optical power region of the radius 丨 ring 〇=1, 2, 3, and ^ 仗 is diffracted light The power of the power region is the unit of optical power. Although the radius of the ring determines the optical power of the diffracted optical power region, the surface relief diffraction structure is high "determining the fraction of incident light that is focused (also βp' diffracted by the optical power region) The maximum efficiency diffraction efficiency is achieved when the phase retardation of the diffracted optical power region is an integer multiple of the wavelength defined by the equation: (η2_η1) (Ηπιλ, where h is the first optical material = refractive index 'η), which is the second optical material The refractive index, d is the height of the diffraction structure, λ is the design wavelength of the diffracted optical power region, and the claws are an integer (m = 1, 2, 3, ...). In one embodiment of the invention, In the first method of operation, For a first multifocal optic having a progressive optical power region. The progressive optical power region may have an additional power of +1.00 D, although any additional power is possible. By way of example only, the first multifocal optic may be from cr39 The tree 130295.doc 57· 200912425 is composed of (4) registered trademark and has a refractive index of 15 。. In the second operation of the method, the first multifocal optic can (for example, by hot scale) Curing onto the surface of the second multifocal optic. The second multifocal optic may have at least one spherical power region. The second multifocal optic may be a lens, a lens wafer, a trimmed lens hair By way of example, the second multifocal optic may consist of a solid polymer, such as that available from Mitsui: a polymer having a refractive index of 1.67. The second multifocal optic may And having at least one multifocal surface capable of producing more than one optical power. The multifocal surface may be external to the second multifocal optic prior to being covered by the first multifocal optic Multifocal optics can be one of the following: Performing a bifocal lens 'lined FT 28, FT 35, curved top ^, curved top 35 ' 7x35 trifocal lens, monolithic bifocal lens, circle a bifocal lens having a surface designed to provide a particular positive diopter optical power: a diffracted optical power region of a volt diffraction pattern, or any other multifocal optic having a spherical power region. The second multifocal optic may have Any set of optical powers σ. If a diffracted optical power region is utilized, it can provide optical power of +1 〇〇 D, although any optical power is possible. This diffractive optic can be readily designed by those skilled in the art. It should be further noted that the optical power at or near the peripheral outer edge of the diffractive optical power region or the spherical power region may be mixed to hide the peripheral edge discontinuity of the second multifocal optic within the composite lens. . In some embodiments of the invention, the second multifocal optic may be provided as a semi-trimmed lens blank having a diffracted optical power region, the diffracted light 130295.doc -58- 200912425 power region on one surface of the optical device The optical power of + 〇〇d is supplied and is not trimmed on the other surface (opposite surface of the optical device). The first multifocal optical device can be cast and cured onto the surface of the second multifocal optic having a diffractive optical power region to form a composite optical device. In this embodiment, the composite lens can have an outer front surface 1 human diffracted optical power region having a progressive optical power region, and - can be performed on a later date: unfinished by molding or surface processing and polishing External back surface. It should be noted that the buried diffracted optical power region will supply optical power to the composite lens due to the difference in refractive index between the first multifocal optic and the first multifocal optic. Understand that although in this particular embodiment of the invention the first multifocal photo-presence device comprises a material having a refractive index of 150 and a second multifocal optics, the member 匕3 has a refractive index of 1.67, but The material for each optics can be reversed. °° The t embodiment of the present invention can be described in terms of the 球 spherical work_region. However, it should be understood that since the diffractive optical power region is a type of substantially spherical power region, such an embodiment also describes an embodiment of the present invention including a diffractive optical power region. Thus, the size, shape, and optics of the diffracted optical power region are the same as the substantially spherical power region 'shape and optical design as described by embodiments of the present invention. Similarly, the alignment of the diffracted optical power region relative to the progressive optical power region can be the same as the large τ occupying spherical power region as described by embodiments of the present invention with respect to the progressive optical region. In another embodiment of the invention, a line of bifocal lenses may be 130295.doc -59 - 200912425 second multifocal optics. The multifocal surface of the lined bifocal lens can be embedded in the composite lens. In this embodiment,

'The refractive curve of the brother can be designed to allow the appropriate success to be achieved given the refractive index of the material for the second multifocal optic and the = radiance of the material used for the first multifocal optic. rate. Such calculations are well known in the art and can be calculated smoothly and easily. In most (but not all) cases, the additional optical power of the second multifocal optic is for the deer: 峨75D, +1. bribe, +125D and in some cases +1 stroke: f ° in the majority (but In all cases), the far-distance optical power of the second multifocal optic is zero optical power 1 - the optical power supply of the optical region on the multi-focus optics provides the far-distance optical power to the wearer + And in most (but not all) cases, the additional power supply is one of D, +i 〇〇d, and 1.25D. In other embodiments of the present invention, the outer surface of the composite lens can be trimmed after the outer back surface of the composite lens. When the outer back surface of the lens is closed, the back surface can provide the required distance to provide the wearer's long distance, intermediate distance and/or close range. Refraction error: to ^ ^. Thus the 'composite lens may be capable of correcting the wearer's refractive error' such as the astigmatism of the wearer, the far eye. When the back surface is untrimmed (for example, the first 隹... and the aging ^ the first multifocal optic is half repaired), the composite lens will not have the final trimmed optical power. #例中的薄的光光的光光二:: In the cavity filled with uncured resin, the lens of the lens is cured when the wax is cured. Therefore, the tree can be formed. Composite eve surface. Multifocal surface can produce light refracting or diffracting. I30295.doc •60- 200912425 Power. Resin can have a refractive index different from that of a thin optical wafer. Once one of the surfaces of the uncured resin Curing, which can form a progressive optical power region with an outer surface curvature. For example, the resin can be cured by heat curing, photocuring (visible or invisible) or a combination of photocuring and thermal curing. In this regard, the optical wafer can be held in place by a gasket used in the casting process. In another embodiment of the invention, the thin optical device can have a progressive optical power region on its surface. thin The device may have a known refractive index. A thin optical device may be formed on top of a thin layer of pre-formed optical material having a different refractive index than the thin optical device to form a composite optical device. The preformed optical material may have a refractive or A substantially spherical power region that produces optical power diffracted. The newly formed composite optic can be adhesively bonded to a thicker untrimmed lens blank to form a composite lens having: a progressive optical power region The outer front surface, a buried substantially spherical power region, and an untrimmed outer surface that can be trimmed by fabrication techniques known in the art. In most, but not all, embodiments of the present invention, A lens or optic that produces a composite lens τ having a substantially spherical power region can be used as a unitary consumable back mold that is placed in the back of an optical gasket used to cast an ophthalmic lens. The term "wholely consumable" The indicator lens or the optical dry device is used as a mold to form the back of the composite lens, and the lens or optical device Consumed and become bonded to the portion of the composite lens that is cured within the mold, thereby becoming an integral part of the final composite lens. The front mold can be provided via a glass or metal mold used to cast the ophthalmic lens. Formed in the front J30295.doc • 61 - 200912425 The optical resin between the mold and the back consumable mold is filled and cured. For example, the curing material can be one of the heats. The cavity can be used with the appropriate refractive index, depending on the desired Agents and to be cured, photocured, or a combination of the two In embodiments of the present invention, the molding techniques just described may allow for the fabrication of semi-trimmed or finished transmissive lens blanks. When the lens is a trimmed lens column, the 1 & port can be used ± with the appropriate torus curve on the outer moon surface

Prefabrication can consume the back mold to correct the wearer's astigmatic refractive error. The back mold can then be rotated within the loop to allow alignment of the astigmatism axis with respect to the front surface mold that forms the curvature of the progressive optical power region in the composite lens. The technique of sighing the axis of astigmatism correction is well known in the art of trimmed ophthalmic lens prayer. In yet another embodiment of the invention, a front integral consumable mold can be used. The front portion of the overall consumable mold can be preformed having a progressive optical power region curvature on its outer surface and a spherical power region that refracts or circulates optical power on its inner back surface. In this case, a glass or metal mold can be used on the f portion to form a cavity to be filled with a resin and then cured to form a composite lens. In this case, the front portion can be consumed and can be integrated with the formed cured resin optical device. After that, the back of the composite lens can be freely formed or ground and polished. X, as previously discussed, the back surface of the composite lens can be molded as it is cured into a finished surface that provides the necessary toroidal curvature required to correct the astigmatism of the intended wearer and/or provides the wearer The long-distance optical power correction and the appropriate spherical power required for the wearer's close-range optical power correction. 130295.doc • 62- 200912425 Figures 29A-29D show a method of fabricating a composite lens in accordance with an embodiment of the present invention. Figure 29A shows a method of fabrication comprising: casting a flat diffractive multifocal optic having a region of diffracted optical power followed by casting a curvature of a progressive optical power region on top of the diffractive multifocal optic. Figure 29B shows the same manufacturing method as Figure 29A, except that different front-part cast ophthalmic materials are used. Figure 29C shows a method of fabrication comprising: - a diffuse multifocal optic having a region of diffracted optical power between the progressively progressive optical power region of the ophthalmic material and the additional layer of the back, whereby the front f) is progressive The material of the optical power region is the same as the additional layer of the back, however, the material of the diffractive multifocal optics is different. Figure 29D shows the same fabrication method as Figure 29D except that the diffractive multifocal optic material is cast from an ophthalmic material that is different from the ophthalmic material of the diffractive multifocal optic of Figure 29C. Table I is a list of various ophthalmic materials, any of which can be used to make a composite lens as long as the two materials are compatible and will join to each other or use a coating to promote adhesion between the two materials.

Material Refractive Index Abbe Value Supplier CR39 1.498 55 PPG Nouryset 200 1.498 55 Great Lakes Rav-7 1.50 58 Evergreen/Great Lakes Co. Trivex 1.53 44 PPG MR-8 1.597 41 Mitsui MR-7 1.665 31 Mitsui MR-10 1.668 31 Mitsui MR-20 1.594 43 Mitsui Brite-5 1.548 38 Doosan Corp. (Korea) Brite-60 1.60 35 Doosan Corp. (Korea) Brite-Super 1.553 42 Doosan Corp. (Korea) TS216 1.59 32 Tokuyama Polycarbonate 1.598 31 GE

Table I 130295.doc • 63- 200912425 In some embodiments of the invention, the mixing zone transitions optical power between at least a portion of the substantially spherical power region and the remote region. Figures 27A through 27C show an embodiment of the invention having a mixing zone 2710 having a substantially constant width at or below the mating point 2720. Figures 28A through 28C show an embodiment of the invention having a mixing zone 2810 that includes a portion having a width of substantially 0 mm at or below the mating point 2820 (and thus resembling a double focus with a line) The lens is provided in this section • Transition). Figures 27A and 28A show the top (') edge of the mixing zone at the mating point. Figures 27B and 28B show the top edge of the mixing zone located 3 mm below the mating point. Figures 27C and 28C show the top edge of the mixing zone 6 mm below the mating point. Portions of mixing zones 2710 and 2810 can be less than about 2.0 mm wide and can be between about 0.5 mm wide and about 1.0 mm wide. It should be noted that the present invention contemplates the use of a mixing zone having a width of between about 0.1 mm and about 1.0 mm. Figure 28A further shows that the central region of the mixing zone corresponding to the location of the mating point has a width of between about 0.1 mm and about 0.5 mm. Figure 28C shows a blend 2810 having a reduced width to have no mixing in the central region li of the mixing zone. The substantially spherical power region and the remote region each have an optical power that can be defined by a particular optical phase " bit distribution. In order to form a mixing zone of a given width, a phase distribution is produced which, in some embodiments of the invention, matches the value of the phase distribution of the first optical power region and the first spatial derivative at the beginning of the mixing zone and The end of the mixing zone matches the value of the phase distribution of the second optical power zone and the second spatial derivative. In other embodiments of the invention, the start and end of the mixing zone phase distribution respectively match the values of the phase scores 130295.doc -64 - 200912425 of the first and second optical power zones and the first and second spatial derivatives. In either case, the phase distribution of the mixing zone can be described by one or more mathematical functions and/or expressions, which can include, but are not limited to, second-order or higher order polynomials, exponential functions, trigonometric functions, and logarithmic functions. In some embodiments of the invention, the mixing zone is diffractive. In other embodiments of the invention, the mixing zone is refractive, and in other embodiments of the invention, the mixing zone has refraction and diffraction. Sub-area. In some embodiments of the invention, in order for the lens to provide high quality vision, the width of the compromise zone must be very narrow. The mixing zone must be narrow to allow the wearer's eyes to quickly traverse the mixing zone as the wearer's line of sight switches between a distant focus and an intermediate or near focus. For example, the width of the mixing zone must be less than about 2.0 mm, less than about 丨〇 mm, or less than a large, spoon 0' 5 mm. It is very difficult to fabricate this narrow mixing zone using conventional ophthalmic lens manufacturing techniques. For example, the single point, freeform ophthalmic surface of the current state of the art produces a mixing zone that can only have a width greater than about 〇5. In addition, these methods provide little or no control over the precise shape of the contour of the mixing zone. The use of conventional glass molds for the conversion of lenses from liquid monomer resins is also limited because glass cannot be processed at a single point. It must work with all grinding processes where fine surface features may be lost. The only method that can be used to produce a lens having a narrow mixing zone with a known and economically viable and well-controlled profile is a metal lens mold, single-dip diamond turning. In this method, the diamond force oral equipment is equipped with a slow It or fast tool servo capability, both of which are well known in the art by way of example only, such molds may be used for materials such as electrolysis or statistic for liquid monomers Resin casting process or thermoplastic injection molding has passed 130295.doc -65- 200912425. Each of the above inventive examples can be fabricated using diamond turning, free forming, surface casting, full lens casting, lamination or molding (including injection molding). It has been found that in the embodiment without the mixing zone, diamond turning provides the steepest discontinuity and the best fidelity. In most (but not all) conditions, the metal is turned by a metal (such as, for example, a coated aluminum steel, or a copper-nickel alloy). The manufacturing methods or techniques required to produce the steps of optical power are known in the industry and, by way of example, diamond turning dies or inserts and subsequent fabrication or injection molding lenses, diamond turning actual lenses, and freedom Molding composition. In one embodiment of the present invention, it is possible to place a toroidal surface correcting the astigmatism refractive error of the wearer on the surface of the same lens as the substantially spherical power region by utilizing the state of the art free-form manufacturing technique. When the two different surface curves are produced by freeform formation, it is then possible to place the progressive optical power region on the opposite surface of the lens. In this case, the 'gradual optical power region is molded and preformed onto one surface of the semi-trimmed blank, and the combined astigmatism correction and spherical power regions are via the opposite untrimmed surface of the freeform semi-trimmed blank. provide. In some embodiments of the invention, the substantially spherical power region is wider than the narrowest portion of the channel bound by improper astigmatism above about 1.00D. In other embodiments of the invention, the substantially spherical power region is wider than the narrowest portion of the channel bound by improper astigmatism above about 0.75D. In some embodiments of the invention, the substantially spherical power region may be substantially spherical or may be aspheric; for example, to correct for astigmatism. Approximate 130295.doc -66- 200912425 The spherical power zone may also have an aspherical curve or curves that are placed to improve the aesthetics of the lens or to reduce distortion. In some embodiments of the invention, the inventive multifocal lens is static. In its (iv) embodiment of the invention, the inventive multifocal lens is dynamic and the substantially spherical power region is dynamically generated by, for example, an electroactive element. In some embodiments of the invention, the substantially spherical power region is a built-in diffractive element, such as a surface undulating diffractive element. The present invention contemplates the production of a semi-trimmed lens blank wherein one of the finished surfaces comprises a substantially spherical power zone, a remote zone and a mixing zone, and the other surface is untrimmed. The present invention contemplates the production of a semi-trimmed lens blank wherein one of the finished surfaces contains a progressive optical power region and the other surface is untrimmed. The present invention also contemplates lens blanks that are produced for certain prescriptions. It should also be noted that the present invention contemplates optimizing the progressive optical power region relative to the approximate spherical power region to optimize the extent of improper astigmatism, channel length, and channel width. Moreover, the present invention contemplates optimizing the mixing zone as necessary to reduce improper astigmatism found in the mixing zone. Furthermore, the invention allows the use of any lens material, whether plastic, glass, resin or composite. The invention also contemplates the use of any optically useful refractive index. The present invention also allows for all coatings and lens treatments that may be commonly used on ophthalmic lenses, such as, by way of example only, hard abrasion resistant coatings, anti-refracting coatings, buffer coatings, and self-cleaning Teflon (Tefl) 〇n) Coating. Finally, the invention is made by techniques known in the art including, but not limited to, surface machining, free forming, diamond turning, milling, stamping, injection molding, surface casting, lamination, trimming, grinding And drilling. 130295.doc •67· 200912425 It should be further noted that the present invention is contemplated for use with contact lenses and ophthalmic lenses. In order to more clearly demonstrate the superiority of the inventive multifocal lens over the state of the art PAL, one embodiment of the present invention is compared to two state of the art PAL. The measurement of the lens is obtained by the Visionix VM-2500TM Lens Plotter, a registered trademark of Visionix. One of the state of the art PAL is the Varilux PhysioTM lens, a trademark registered by Varilux, which has an additional power of approximately + 2.00D. State of the Art The other in PAL is the Varilux EllipseTM lens, registered by Varilux, which has a short channel design and approximately + 2.00 D additional power. As can be seen in Table II, the Physio lens has a maximum improper astigmatism of 1.68D, a channel width of 10.5 mm and a channel length of 1 7.0 mm. The Ellipse lens has a maximum improper astigmatism of 2.00D, a channel width of 8.5 mm and a channel length of 1 3.5 mm. The inventive lens also has an additional power of about + 2.00. However, in contrast, the inventive lens has a maximum improper astigmatism of less than 1.00D. Since the maximum improper astigmatism is less than 1.00D, the channel width is as wide as the lens itself for all intents and purposes. Finally, the channel length is 14.5 mm. It should also be noted that both the Visionix VM-2500TM Lens Plotter and the Rotlex Class PlusTM Lens Plotter are due to their small width and are not capable of detecting inappropriate astigmatism at discontinuities in the inventive lens.

Attribute VARILUX ELLIPSE VARILUX PHYSIO Inventive embodiment (2.00D additional power) (2.00D additional power) (10 spherical lens + 10 additional PHYSIO) Distance power 0.12D .08D -0.11D Near total power 2.11D 2.17D 1.90D 130295. Doc -68- 200912425

Total additional power 1.99D 2.11D 2.02D channel length 13.5MM 17.0MM 14.5MM channel width 8.5MM 10.5MM 23.5MM maximum improper astigmatism 2.05D 1.68D 0.90D (below the midline) maximum improper astigmatism 0.98D 0.95D 0.5D (medium Above the line) Table II [Simple Description of the Drawings] Figures 1A-13B show different lenses with perceived image interruption or no perceived image interruption; Figure 14A shows two optical powers in accordance with an embodiment of the present invention. A view of the front surface of the lens of one of the regions and a mixing zone; Figure 14B shows a view of the front surface of the lens having two optical power regions and a mixing region in accordance with an embodiment of the present invention; Figure 14C shows Figure 14A or Figure 14B a view of the back surface of the lens with a progressive optical power region below the mating point of the lens; Figure 14D shows a view of the back surface of the lens of Figure 14A or Figure 14B with a progressive at or near the mating point of the lens Figure 14E shows a cross-sectional view of the lens of Figures 14A and 14C taken through the centerline of the lens; Figure 14F The inventive lenses of Figures 14A and 14C are shown above, showing the placement and optical alignment of the optical power regions on the front and back surfaces of the lens; 130295.doc -69- 200912425 Figure 14G shows Figure 14B from the front and The inventive lens of Figure 14c, which shows the placement and optical alignment of the optical power regions on the front and back surfaces of the lens; Figure 15A shows one of two optical power regions and one mixing region in accordance with an embodiment of the present invention. Figure 15B shows a view of the back surface of the lens of Figure 15A with a progressive optical power region below the mating point of the lens; Figure 15C shows an inventive lens having a surface, the surface being a Figure 15D shows a diagram explaining how the surfaces of Figures 1SA and 1SB are combined to form the surface of Figure 15C; Figure 16 shows the R〇Uex aass piusTM registered by Rotlex. Additional power gradients for the following lenses with close-range additional power of +1.25D: EssU〇r physi〇TM lens registered by Essilor, registered by Essilor The Essil〇r miipseTM lens, and the Shamir Picc〇i® lens from the officially registered trademark; Figure 17 shows the three lenses of Figure 16 as measured by the R〇Uex Class plusTM registered by R0tlex. The measurement obtained from the west self-combination point along the channel of additional power is shown; Figure 18 shows the measurement obtained by the self-mating point found in the embodiment of the invention along the channel of additional power, wherein One of the optical powers of +1.00 D is placed in a substantially spherical power area for optical communication with the lens of Figure 16; Figure 19 shows the left inventive lens as measured by the R〇Uex class plusTM registered trademark of R〇tlex. Additional power gradients for both the embodiment and the Essilor Registered 130295.doc 200912425 trademark Essilor PhysioTM lens; Figure 20 shows the two lenses of Figure 19 as measured by the Rotlex Class PlusTM of the Rotlex registered trademark. The measurement obtained at the matching point below the channel of the additional power; Figure 21 shows four regions of the inventive lens: a long distance zone, an upper far-middle distance zone, a middle distance zone and a Close range; Figure 2 2 to 2 3 show optical power along a central vertical centerline of an embodiment of the invention. These embodiments include a progressive optical power region that connects the remote zone to the close zone; Figure 2 4 26 shows the optical power along the center vertical centerline of an embodiment of the invention. The embodiments include a substantially spherical power region, a discontinuity, and a progressive optical power that connects the remote region to the close region. Figure 27A-27C shows an embodiment of the invention having a mixing zone having a substantially constant width at or below the mating point of the lens; Figures 28A-28C show the invention having a mixing zone In an embodiment, the mixing zone includes a portion having a width of substantially 〇mm at or below the mating point of the lens (and thus a line-like bifocal lens providing a transition in this portion); and FIG. 29A to 29D shows a method of fabricating a composite lens in accordance with an embodiment of the present invention. [Main component symbol description] 1410 Distance zone 1415 Distance optical power 130295.doc 200912425

1420 Spherical power zone 1430 Junction 1440 Junction 1450 Into the optical power zone 1465 Close-range additional power 1470 Power step 1510 Spherical power zone 1520 Junction 1530 Into the optical power zone 2110 Distance zone 2120 Far-middle distance Zone 2130 Distance zone 2140 Distance zone 2210 Axis 2220 Coupling 2230 Taiwan 2240 Taiwan 2310 Axis 2320 Mirror 2330 Taiwan 2340 2350 Taiwan 2410 Axis 2420 Coupling 130295.doc -72- 200912425 2430 Continuous 2440 Power 2450 Taiwan 2460 Optical work 2470 Spacing 2480 Close range 2510 Axis 2520 Continuous 2530 Coupling 2540 Power 2560 Spherical 2570 Optical work 2580 Part 2585 Pitch 2590 Close distance 2595 Part far 2610 Axis 2620 Continuous 2630 Joint 2640 Part 2650 Pitch 2660 Power 2680 Close range 2710

Saturation Rate Offset Power Offset Power Rate Partial Rate - Intermediate Distance Correction Offset Offset Power Offset - Intermediate Distance Correction - Intermediate Distance Zone Offset Power Offset Power 130295.doc •73- 200912425 2720 Joint 2810 Junction 2820 Joint

C 130295.doc -74-

Claims (1)

200912425 X. Patent Application Range: 1. An ophthalmic lens having a long distance zone, comprising: a diffractive optical power region for providing a first incremental additional optical power; and a diverging optical power at the remote distance region a discontinuity between the regions; and a progressive optical power region for providing a second incremental additional optical power, wherein at least a portion of the diffracted optical power region is in optical communication with the advanced optical power region, such The first-incremental additional optical power and the second incremental additional optical power together provide a near-field additional power of the user. The ophthalmic lens of claim 1, further comprising: a platform of optical power located in the progressive light In one portion of the power region, for providing vertical stability of vision in the intermediate distance region of the ophthalmic lens. 3. The ophthalmic lens of claim 2, wherein the platform of optical power has a vertical length of from about [mm] to about 3 mm or more. 4. The ophthalmic lens of claim 2, wherein the platform of optical power has a vertical length of from about 2 mm to about 6 mm or more. 5. The ophthalmic lens of claim 1 further comprising: a sigma zone for mixing the optical power across at least a portion of the discontinuity. 6. The ophthalmic lens of claim 5, wherein at least a portion of the mixing zone has a width of about 2.0 mm or less. The method of claim 1 , wherein the ophthalmic lens has an intermediate distance zone and the intermediate distance zone has an additional power between about 45% and about 55% of the approximate additional power. . 8. As requested! An ophthalmic lens, wherein the lens has a mating point, and wherein a top edge of the diffracted optical power region is positioned between about 3 mm and about 4 mm below the mating point, and wherein the progressive optical power region is Starting between about 4 mm and about 8 mm from the top edge of the diffracted optical power region. 9. In the ophthalmic clock of claim 1, 1 is constructed by y π, wherein the discontinuity is caused by a step of optical power. At least 10. The ophthalmic lens of claim 9 wherein the step of optical power is one step liter of optical power of about + 0.12 D. U. The ophthalmic lens of claim 1, wherein the diffractive optical power region is located on or embedded in a surface of the lens. A, such as a requesting ophthalmic lens, wherein the progressive optical power region is located on or embedded in one of the lenses. 13. The ophthalmic lens of claim 3, wherein the progressive optical power region comprises a progressive optical power surface, and wherein the progressive optical power surface is produced by one of free forming, molding, or surface casting. . In the case of an ophthalmic lens of claim W, the diffractive optical power region is formed by freely molding the surface of the lens, molding the surface of the lens, or embedding a surface in the lens. produce. 15. The ophthalmic lens of claim 1, wherein the lens comprises an upper distal-intermediate distance region, and wherein the upper distal-intermediate distance region has - about 2% and about approximately 30% of the additional power at the close distance 130295.doc 200912425 Additional power between 44%. 16. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein a top edge of the diffracted optical power region is positioned between n 9 2 m and about 5 mm below the mating point, and Wherein the progressive optical power region begins at between about 4 mm and about 8 mm from the top edge of the diffracted optical power region. 17. If requested! An ophthalmic lens, wherein the lens has a close-range region in which the optical power contributed by the progressive optical power region is reduced after the near-field to provide a lower-intermediate region. 18. A lens comprising: a first layer having a first index of refraction, wherein the first layer has a first curvature and a second curvature, wherein the second curvature provides a single optical power; and one has a different a second layer of a second index of refraction of the first index of refraction, wherein the second layer has a first curvature and a second curvature, wherein the second curvature of the second layer provides a progressive optical power and is coupled to the first layer The second curvature is in optical communication and thereby provides a combined optical power to correct for close vision. 19. The lens of claim 18, wherein the single-optical power system - spherical optical work 〇 20. The lens of claim 18, wherein the second curvature of the second layer is on the outer surface of the lens. The lens of claim 18, wherein the second curvature of the first layer begins at 4 mm below the mating point of the lens. Brother 130295.doc 200912425 - The second curvature of the 22. The lens of claim 18 wherein the lens optical power of the first layer has a discontinuity. a lens comprising: - a first layer having a first refractive index, wherein the first layer comprises a long distance region and a first optical element; and - having a second refractive index different from the first refractive index a second layer, wherein the second layer comprises a remote region and a second optical component, wherein the first optical component comprises an optical power region of the spherical surface, the substantially spherical optical power The first portion of the total short-range additional power of the lens is supplied to the lens, wherein the first optical component of the first layer and the optical power between the remote regions step up 'the first optical in the first layer An optical discontinuity is generated at a boundary between the component and the remote region, wherein the first optical component is located at *mm below the mating point of the lens, wherein the second optical component includes a progressive optical power region, The progressive optical power region supplies a second portion of the total near-distance additional power of the lens, and wherein the first and second optical components are in optical communication, so the total near-distance additional power of the lens A second portion of the total power close to the total power of the lens is combined to supply the total near-field additional power of the lens. 24. The lens of claim 23, wherein the first and second optical elements are aligned to form a far-intermediate distance zone and an intermediate distance zone. 130295.doc 200912425 2 5. The lens 5 of claim 2, wherein the intermediate-intermediate distance zone has an additional power between about 20% and about 44% of the total power of the total close proximity of the lens, and the intermediate The distance zone has an additional power between about 45% and about 55% of the total power of the lens. 130295.doc