Spectacle, spectacle piece and use of spectacle

Abstract

The invention provides eyeglasses, an eyeglass lens and application of the eyeglasses, relating to the technical field of the eyeglasses and the eyeglass lens. The eyeglasses of the invention have strong generalization and are suitable to batch production. By using the eyeglasses of the invention, the user feels being prevented from fatigue, comfortable and natural, and can freely wear and remove the eyeglasses. The eyeglasses of the invention can be used as comfort-typed presbyopia eyeglasses for elderly or middle-aged men, and can be used as eyeglasses of children and youth to see the nearby objects for preventing the short sight or exercising the eyes and treating the short sight, and also can be used as eyeglasses used for presbyopia and can be used as dual-eye magnifier. The eyeglasses of the invention are characterized in that the distance between two focuses formed after the solar light passes through the eyeglasses is less than 2.5cm or the two focuses are coincident. The specially designed eyeglass lens of the invention is a composite eyeglass lens which consists of a convex with the dioptre x compounding with a prism with a deviation angle more than 1.3x prism degree.

Description

technical field

[0001] The invention relates to the technical field of glasses and spectacle lenses. Background technique

[0002] As people age, so do their eyes. Presbyopia not only reduces the adjustment function but also reduces the comparative adjustment and comparative set ability. Everyone has a certain habit between the adjustment and collection of eyes. If the habit is broken, it will feel uncomfortable and easily fatigued. The ability of presbyopia to adapt to changes is reduced, so presbyopia requires glasses to maintain the habit that has been formed (coordination of binocular adjustment and set). Existing mass-produced presbyopic glasses only change the adjustment but not the set, which destroys the coordination habit of the adjustment and set of the eyes, so you feel uncomfortable and tired after using it for a while. Existing technology ZL 200620031493.6 "Prism Reading Glasses" uses the method that the center of the convex lens deviates inwardly from the ce...

Examples

Embodiment 1

[0034] Embodiment 1: a kind of glasses, Figure 7 It is a schematic diagram of the top view section structure of this kind of glasses. This kind of glasses has two spectacle lenses and spectacle frames corresponding to the left and right sides of the eyes. The left and right sides of the glasses are symmetrical. (that is, x=2.5D) anti-distortion aspheric convex lens spectacle lens 2 and a prism 3 with a deflection angle of 8 prism degrees (that is, 8>1.3x=1.3*2.5=3.25△) are closely connected to form a compound Spectacle lens 1 (the convex lens and the prism can be "closed" together by means of gluing, frame fixing, or screw fixing, etc.), the diopter and prism power of the two spectacle lenses are the same, and the bases of the prisms are all inward and parallel The two focal points formed after the light passes through the two spectacle lenses of the glasses coincide (the distance between the geometric centers of the two compound spectacle lenses is about 6.4 cm). Spectacle ...

Embodiment 2

[0035] Embodiment 2: as Figure 16 The glasses shown have two spectacle lenses and spectacle frames corresponding to the left and right sides of the eyes. The two spectacle lenses are left and right symmetrical. The spectacle lenses are composite spectacle lenses 1 with convex lenses and compound prisms. The deflection angle of the center is 9 prism degrees, the diopter and prism degree of the two spectacle lenses are the same, the bases of the prisms are all inward and downward, and the focus of the lens is on the inner and lower front of the spectacle lens ( Figure 17 ), the light below the front seems to come from the front, and the observer can reduce the degree of bowing his head when reading a book. The spectacle frame is an adjustable spectacle frame that can change the distance between the lenses. It has a telescopic sleeve-type nose bridge 5 and a screw 6 that fixes the telescopic sleeve. When the distance between the geometric centers of the two compound spectacle l...

Embodiment 3

[0036] Embodiment 3: as Figure 18 The glasses shown have two spectacle lenses and hat-type spectacle frames corresponding to the left and right of the eyes. The geometric centers of the two spectacle lenses are separated by 6 cm and are symmetrical to the left and right. The deflection angle is 9 prism degrees, the prism base faces inward, and the diopter of the spectacle lens is 3D. The compound spectacle lens can be a concave-convex spectacle lens or a plano-convex lens or a biconvex lens, and the compound spectacle lens can also be a Fresnel lens (or threaded lens) and the like. The convex lens and the prism in the composite spectacle lens can be a single lens, or a composite spectacle lens formed by overlapping and closely bonding a convex lens and another prism. Spectacle lens can adopt high refractive index material also can adopt common material.

technical field

[0001] The invention relates to the technical field of glasses and spectacle lenses. Background technique

[0002] As people age, so do their eyes. Presbyopia not only reduces the adjustment function but also reduces the comparative adjustment and comparative set ability. Everyone has a certain habit between the adjustment and collection of eyes. If the habit is broken, it will feel uncomfortable and easily fatigued. The ability of presbyopia to adapt to changes is reduced, so presbyopia requires glasses to maintain the habit that has been formed (coordination of binocular adjustment and set). Existing mass-produced presbyopic glasses only change the adjustment but not the set, which destroys the coordination habit of the adjustment and set of the eyes, so you feel uncomfortable and tired after using it for a while. Existing technology ZL 200620031493.6 "Prism Reading Glasses" uses the method that the center of the convex lens deviates inwardly from the ce...

Examples

Embodiment 1

[0034] Embodiment 1: a kind of glasses, Figure 7 It is a schematic diagram of the top view section structure of this kind of glasses. This kind of glasses has two spectacle lenses and spectacle frames corresponding to the left and right sides of the eyes. The left and right sides of the glasses are symmetrical. (that is, x=2.5D) anti-distortion aspheric convex lens spectacle lens 2 and a prism 3 with a deflection angle of 8 prism degrees (that is, 8>1.3x=1.3*2.5=3.25△) are closely connected to form a compound Spectacle lens 1 (the convex lens and the prism can be "closed" together by means of gluing, frame fixing, or screw fixing, etc.), the diopter and prism power of the two spectacle lenses are the same, and the bases of the prisms are all inward and parallel The two focal points formed after the light passes through the two spectacle lenses of the glasses coincide (the distance between the geometric centers of the two compound spectacle lenses is about 6.4 cm). Spectacle ...

Embodiment 2

[0035] Embodiment 2: as Figure 16 The glasses shown have two spectacle lenses and spectacle frames corresponding to the left and right sides of the eyes. The two spectacle lenses are left and right symmetrical. The spectacle lenses are composite spectacle lenses 1 with convex lenses and compound prisms. The deflection angle of the center is 9 prism degrees, the diopter and prism degree of the two spectacle lenses are the same, the bases of the prisms are all inward and downward, and the focus of the lens is on the inner and lower front of the spectacle lens ( Figure 17 ), the light below the front seems to come from the front, and the observer can reduce the degree of bowing his head when reading a book. The spectacle frame is an adjustable spectacle frame that can change the distance between the lenses. It has a telescopic sleeve-type nose bridge 5 and a screw 6 that fixes the telescopic sleeve. When the distance between the geometric centers of the two compound spectacle l...

Embodiment 3

[0036] Embodiment 3: as Figure 18 The glasses shown have two spectacle lenses and hat-type spectacle frames corresponding to the left and right of the eyes. The geometric centers of the two spectacle lenses are separated by 6 cm and are symmetrical to the left and right. The deflection angle is 9 prism degrees, the prism base faces inward, and the diopter of the spectacle lens is 3D. The compound spectacle lens can be a concave-convex spectacle lens or a plano-convex lens or a biconvex lens, and the compound spectacle lens can also be a Fresnel lens (or threaded lens) and the like. The convex lens and the prism in the composite spectacle lens can be a single lens, or a composite spectacle lens formed by overlapping and closely bonding a convex lens and another prism. Spectacle lens can adopt high refractive index material also can adopt common material.

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