WO2016134611A1

WO2016134611A1 - Dispersion glasses

Info

Publication number: WO2016134611A1
Application number: PCT/CN2016/000088
Authority: WO
Inventors: 张文会
Original assignee: 张文会
Priority date: 2015-02-26
Filing date: 2016-02-22
Publication date: 2016-09-01
Also published as: CN105929563A

Abstract

Dispersion glasses, comprising dual-layered lens or patch-type far-change glasses consisting of a myopia correction lens and a convex prism lens, or press mounted-type glasses wherein a press mounted-type lens is affixed on a myopia correction lens lower portion near vision area, or multi-focal point glasses, or single-layered lens far-change glasses. The refractive power of the convex prism lens or the press mounted-type lens is D_correct, 0.00 D < D_correct ≤ +7.00 D, the prism degree is between 5 PD and 20 PD, and a substrate faces inwards. The refractive power of a circular area lens having a prism degree in a lens lower portion near vision area or a lower portion near vision area of the multi-focal point glasses is between -5.00 D and +7.00 D, and the prism degree is between 5 PD and 20 PD. The refractive power of the single-layered lens far-change glasses is between -5.00 D and +7.00 D, the prism degree is between 5 PD and 20 PD, and a substrate faces inwards. A person wearing the dispersion glasses is able to ease tiredness of the eyes when reading from a book, mobile phone, computer etc.

Description

Glasses

A double-lens or patch-type remote mirror composed of a corrected myopic lens and a convex prism sheet, and a refractive power of the corrected myopic lens in the pressed-type glasses to which the near-corrected myopic lens is pasted with a close-contact pressed lens is D _Jiao, prism sheet, and pressed against the convex lenses of _positive refractive power is D, the refractive power of the prism is a composite of two P lens, double lens or mirror of the patch away and is pressed against the glasses of the D, D≈D _Jiao +D _{is positive} . Single-layer lens telescope lens, when wearing a single-layer lens, the telescope lens is viewed from the front of the lens. The central portion of the spectacle lens has a prismatic diameter of 15 to 25 mm. The circular area lens and the multifocal spectacle lens are partially viewed. In the near zone or in the lower section, there is a circular zone lens having a prismatic diameter of generally 15 to 25 mm in the near zone, and the ophthalmic lens in the eyeglasses is actually used for the near portion, for example, the upper partial vision lens and the second or second layer. The composite lens of the composite lens of the above lens or the part of the composite lens, for example, the lower part of the lens of the near-field lens has a refractive power D, the prism degree is P, and the refractive power and prism degree of the partial lens of the composite lens or the composite lens are generally the respective lenses. The sum of the power and the prism. D≈D _correction + D _n, D _n is the refractive power of the lens. When the eyeglasses are in front of the eye, the intersection of the pupil midline and the posterior surface of the lens is the midpoint of the lens. The midpoint of the composite lens of the composite lens may be the midpoint of the last lens, and the light or parallel rays are aligned with the shaft hole. The distance between the center line parallel light or the light of the same or similar nature of the aforementioned light rays from the rear surface of the spectacle lens into the spectacle lens and the distance between the focal point of the two spectacle lenses is the focal length of the spectacle lens, using light or The prismatic power of the ophthalmic lens is measured by the parallel rays of the midpoint of the ophthalmic lens of the glasses. The center or center of the central portion of the spectacle lens of the glasses is generally about 5 mm below the midpoint of the two ophthalmic lenses and about 2 mm to the inside. The power and prism power can be added as having positive and negative properties, for example: (-2.50D) + (+4.00D) = + 1.50D, (+1.00PD) + (+3.50PD) = 5.00PD.

Disperse glasses refer to glasses such as telescopes, press-fit glasses, multi-focal glasses, and composite lens glasses with P ≥ 1 PD base inward prisms. People wearing glasses can see clearly or basically see what they need to see. Clear objects such as books, text on the screen of a mobile phone, etc. The prismaticity of the spectacle lenses is used to reduce eye collection and correct strabismus. The spectacle lens is oriented inwardly. When the head is erected, the thickest end of the spectacle lens points to the nose side or the tip point to the crotch side. The prismatic inward direction of the substrate includes a prismatic component in which the base orientation is inward or inward, and the prismatic degree in the inward direction of the substrate, for example, the orientation of the substrate is 10 prisms inwardly offset by 30 degrees in the inward direction of the substrate. The prismatic component is 10 COS 30 ° ≈ 9 (PD). When the glasses are erected on the same horizontal surface, the side of the spectacle lens near the bridge of the nose is the inner side of the spectacle lens, and the side of the spectacle lens is close to the plaque or the side of the temple is the outside of the spectacle lens. Basically, it is clear that the object is a certain degree of dispersion, deformation, double vision or confusing when the person is looking at the object, but the person can recognize the object, and the object gathers and images the image in front of the retina when the object is looking at the object. There is a certain degree of ambiguity, but one can recognize the object. The refractive power of the spectacle lens can generally reduce the eye adjustment of the user of the eyeglasses, and can also reduce the eye adjustment of the user.

Wearing glasses when looking at objects can reduce eye collection or collection and adjustment, thus reducing eye strain labor.

The spectacle lens is generally P ≥ 5PD, and the refractive power includes 0.00D. Powder spectacle lens such as a monolayer of lenses away mirror, D multifocal spectacle lenses in general -5.00D to + 7.00D (i.e., _Johnson D + D _n, D _n ≤ + 7.00D), typically between P 5PD to 20Pd, a prism sheet or pressed against the convex lenses generally D _n ≤ + 7.00D. The spectacle lenses are generally D=P÷3+ (-8.00D to +3.00D), D _positive = P÷3+ (-3.50 to +2.50D) and D _positive >0.00D. When people use loose glasses, the lens of the glasses is generally D=2 (PP _oblique ) ÷d _瞳 +D _poor + (-3.00D to +3.00D), D _positive = 2 (PP _oblique ) ÷d _瞳 + (-3.50 D to +2.50D) and D _positive >0.00D. P refers _oblique perspective view of the eye, the oblique _ramp P is a positive value, the oblique _ramp P is negative; refers to D _was equal to the focal length of the object and to see people wearing glasses, loose spectacle lenses of two points connected The distance between the lines (usually the habitual reading distance of the person) is the refractive power of the convex lens; d _瞳 refers to the distance between the centers of the two pupils when the eye is looking straight ahead, about half the distance of the pupil, in centimeters; D- _poor means that the person sees the infinity object, for example, the distance between the eye and the eye is the refractive power of the glasses on the eye chart of 1.5 meters. For the nearsighted person, the lens power refers to the minimum refractive power of the concave lens, for far vision. The refractive power of the glasses refers to the maximum refractive power of the convex lens, and for the front viewer, the refractive power of the glasses is 0.00D. D, the optimum value of P are _Jia D, P _Good, D + D _was _good ≈D _poor, P _was _good ≈D × d ÷ 2 + P _swash _pupil. When people watch an object should be selected substantially easier to see the need to look at the object of farthest _after the refractive power D, it is the dispersion of the prism P of _the eyeglasses, _the _poor + D D ≈D _large, _the _large P ≈D × d ÷ 2 + P _swash _pupil, _big D is the maximum refractive power of the convex lens, by moving the position of the head and / or object methods to shorten the distance between the eyes and at a far point on the object is larger than the _large selection of D D is _large , the easier it is to see the object, _the larger the D. When a person looks at a normal-sized font on a general book, it is possible that D is a _big 1.1D _object . Person wearing the refractive power and _{the rear} is a _rear D D D a _good ≥0.00D, _after prism P and P ≥P _excellent dispersion _after reading the present glasses and the like, and a set of eyes without adjustment. For example: near vision refractive power is -2.00D, the number is outside the phoria 1PD, eye pupil distance is 6 cm myopia see the distance between the eye and the time _after the book 25 cm distant, may choose D = + 2.50D , P _after = 14PD scattered glasses. One can choose two or more different D, P glasses according to the different customary distance between the object and the eye when reading books, mobile phones or computers in different environments.

Referring to the prior circular prism ophthalmic lens design method of the spectacle scattered round spectacle lens, the prism refractive power of the spectacle lens and the prism are replaced by bulk-power spectacle lenses, i.e., D spectacle _astigmatism and prism consideration. The ophthalmoscope glasses can be processed from the lens glasses. The spectacles can be made from the existing prism lens and the press-fit lens. Spectacle lenses include: double-layer lenses in loose glasses or convex prism sheets in patch-type remote mirrors, press-fit lenses in press-fit glasses, single-layer lens telescope lenses or central parts of spectacle lenses A circular area lens having a prismatic degree, a lower part of the multifocal spectacle lens or a circular area lens having a prismatic degree in the lower part of the lower part.

The design method of the lens-shaped round glasses is as follows: design a circular large lens with a refractive power of D _O and a diameter of d _O , and take the spectacle lens at the edge of the large lens. The large concave lens may be an annular mirror, and the two mirror surfaces are intersected at the time of design, and other design methods are the same. The focus of the annular mirror refers to the focus formed by the light passing through the annular mirror. The thickness and shape of the large lens conforms to the thickness and shape of the ophthalmic lens, D _O = D _dispersion , d _O = 2P _O ÷ D _O + d _circle , P _O = P, d _circle refers to the diameter of the circular ophthalmic lens, d _O The unit of the d _circle is centimeter. A D _{_O,} d _O designed large bulk spectacle lens designed ophthalmic lens having optical power and a prism P D _provided _arranged, _provided ≈D _dispersion D, P _set ≈P, D _{_O,} P _O larger, D are _disposed, P _{Set to} bigger. By adjusting D _O and P _O to adjust the D _setting and P _setting , it is basically possible to obtain D _setting = D _dispersion and P _setting = P. D _O according to the preset adjustment, P _O d _O recalculated adjusted.

If the spectacles are used to correct astigmatism, the spectacle lens has a lenticular component, the axis meridian is θ, and the lenticule refractive power is a D- _column . Design a circular large-ring curved mirror. The refractive power of the spherical mirror and the cylindrical mirror are D ₁ and D _{2 respectively} . The diameter is D _ring , D ₁ = D _dispersion , and D ₂ = D _column . When 0°≤θ≤90°, d _ring =[2P _O θ÷D ₁ +2P _O (90°-θ)÷D ₂ ]÷90°+d _circle or d _ring =[2P _O θ÷D ₂ +2P _O (90°-θ)÷D ₁ ]÷90°+d _circle , generally taking the former; when 90°<θ<180°, d _ring =[2P _O (180°-θ)÷D ₁ + 2P _O (90°-θ)÷D ₂ ]÷90°+d _circle or d _ring =[2P _O (180°-θ)÷D ₂ +2P _O (90°-θ)÷D ₁ ]÷90° +d _circle , generally taking the former, P _O =P. The angle between the diameter of the ophthalmic lens of the large-circumferential curved mirror and the axis is θ, and the upper portion of the spectacle lens is within the included angle. The lens spectacle lens designed by the large ring curved mirror designed by D ₁ , D ₂ and d _ring has spherical mirror refracting piece D ₃ , cylindrical lens refractive power D ₄ and prism degree P _set , D ₃ ≈ D _scattered , D ₄ ≈ For the D _column , P _{is set to} ≈P _O , and D ₁ , D ₂ , and P _{O are} larger, and D ₃ , D ₄ , and P are respectively _set larger. By adjusting the D _1, D _2, P _O were adjusted D _3, D _4, P _{is provided,} it may be substantially obtained _dispersion D ₃ = D, D ₄ = D _column, P _set = P _O, according to a preset D _1, D _2. P _O recalculates the adjusted d _O . Other design methods for large ring curved mirrors refer to the design method of large lenses.

Refer to the design method of the existing circular spectacle lens and other circular lens lenses to design a circular large lens or a circular large ring curved mirror, a circular lens such as a lens diameter, a spherical mirror surface, a curved mirror surface or other mirror surface and other aspects The data such as the radius of the ball where the spherical mirror is located, etc. are enlarged or reduced to the appropriate data of the circular large lens or the circular large ring curved mirror in the corresponding aspect, and the spherical mirror refractive power, axial direction, and cylindrical lens of the lens such as the circular lens The data of refractive power and other aspects are replaced with the data of the corresponding aspects such as the spherical power of the circular large lens or the circular large ring curved mirror, the axial direction, and the cylindrical refractive power. For example, two large spherical surfaces or two large curved surfaces are used to design a circular large lens or a circular large curved curved mirror. When measuring the focal length of a circular large lens or a circular large ring curved mirror, the light or the mirror surface of the rear surface of the lens that is as perpendicular as possible to the large lens or the large ring curved mirror is incident on the large lens or the large curved mirror from the mirror surface. The focal length is equal to the distance between the focus and the midpoint line of the two ophthalmic lenses on one diameter of the large lens or large toroidal mirror.

Design method for the lens of the round glasses: Take a small lens on a large lens such as a large-diameter circular prism lens, for example, design a central portion of the lens with a common circular prism lens with a diameter of about 6 cm. The lower part of the focus glasses is a circular area lens having a prismatic diameter of about 2 cm in the vicinity of the focus glasses. Take a small ophthalmic lens at the edge of the large ophthalmic lens. Large, the refractive power of the small ophthalmic lenses are D _O, d _small, large, prism small spectacle lens are P _O, P _small, large, small radius spectacle lens are r _O, _small r, large spectacle lens The angle between the radius of the center of the small spectacle lens and the radius in the direction of the orientation of the substrate is θ. 0° ≤ θ ≤ 180°, the base orientation and axial direction (if any) of the large and small ophthalmic lenses are unchanged. D _small ≈ D _O , D _O is larger, D is _smaller , D _O can basically get the required D _small . _Small P ≈P _{_O} + (r _O _small _{-r) × D O cos (180} ° -θ), θ the larger, the larger the _small P, select P [theta] may be substantially _small to obtain desired. An excess of the same thickness can be subtracted or added to the small spectacle lens to conform the thickness of the ophthalmic lens to the desired thickness.

Powder circular spectacle ophthalmic lens design method three: the _bulk refractive power is D (D _San ≠ 0.00D) _Powder and D or _D-pillar (D _dispersion, D _column is incomplete 0.00D), the diameter of the ophthalmic lens from the non-prism degrees From one end to the other end, the thickness is gradually increased from the outer side to the inner side of the spectacle lens, and the prismatic degree of the spectacle lens formed by the increased thickness is P. The prismatic lens may be a small lens taken in an existing large lens, such as a conventional lens, for example, about 2 cm in diameter at the center of a circular lens having a prismatic diameter of about 6 cm. Small glasses. A mirror surface of the prismatic lens can be designed as a plane, and a prism lens having a refractive power of 0.00D prismatic P is added to the plane. An extra layer of the same thickness can be subtracted from the designed lens. When the spectacle lens D is _scattered = 0.00D and there is no lenticular component, the spectacle lens can be processed by a triangular prism sheet having a refractive power of 0.00D and a prismatic degree of P.

The thickness of the ophthalmic lens designed for the purpose of the press-fit lens by the above method should be as small as possible, and can be designed into a press-fit lens with reference to the design method unique to the press-fit lens. A mirror surface of the spectacle lens is divided into a plurality of small areas, the same thickness is subtracted from each area, and the outermost area is not reduced in thickness, and the remaining minimum thickness of the area is approximately equal to the bottom thickness of the press-fit lens. May refractive power is a prism lens 0.00D paste pressed against Formula spherical lenses, the refractive power is pasted refractive power D _scattered ophthalmic lens is 0.00D is pressed against type prism lens, or a spectacle lens attached is pressed against the ball lens or prism In the lens, the refractive power of the composite lens is D _dispersion and the prism degree is P.

The figure shows a top plan view of a horizontal section through the midpoint of the spectacle lens when the head is erected with the spectacles, and the two solid lines indicate the outer contour of the two ophthalmic lenses. The drawings may also represent a schematic view of a large lens or a large ring curved mirror designed from above the spectacle lens, the cross section being as perpendicular as possible to the two mirrors of the large lens or the large ring curved mirror and passing through the large lens or the large ring surface The diameter of the mirror, two solid lines indicate the outer contour of the two spectacle lenses, and the outer contour lines formed by the solid and dashed lines indicate the outer contour of the large lens or the large ring curved mirror.

Claims

[Correct according to Rule 26 09.05.2016]
A pair of loose glasses, comprising: a double-layer lens or a patch-type remote mirror composed of a corrected myopic lens and a convex prism sheet, and a pressure-attached lens in which a pressure-applied lens is attached to a near-region near the corrected myopia lens, Focus glasses and single-layer lens telescopes, etc., characterized in that the refractive power of the convex prism sheet or the press-fit lens is D positive , generally 0.00D < D is ≤ +7.00D, and the general prism degree is between 5PD and 20PD. The base is facing inward; or the lower part of the multifocal spectacle lens is a near-area or the lower part of the near-area has a prismatic circular area lens, a single-layer lens, a telescopic lens, and the like, and the spectacle lens generally has a refractive power of -5.00D to +7.00. D (ie correcting the refractive power of myopia + D positive , generally 0.00D < D positive ≤ +7.00D), the general prism degree is between 5PD and 20PD, the base is facing inward.