TWI480622B - Aspherical ultra-thin telescopic lens - Google Patents

Description

Aspherical ultra-thin telescopic lens

The invention relates to a far-sighted eyeglass lens (or a reading glasses), in particular to an aspherical ultra-thin hyperopia lens using a polycarbonate material, which has the advantages of light weight, thin thickness and not easy to be broken.

The traditional spherical lens, the object around the lens is distorted, which limits the wearer's vision. In the era of continuous technological advancement, the aspherical design reduces the edge aberration of the lens to the bottom, so that it can satisfy the customers' wide vision. demand. The aspherical lens has a flatter base and a lighter weight, making it look more natural and beautiful. In the case of high diopter, the deformation of the eye can be reduced, and for a consumer with a high visual power, it may be more appropriate to select an aspherical lens.

The existing aspherical far-sight lenses are generally made of glass material, and processed by manual grinding and the like during processing, and the efficiency is low and the cost is high. In addition, the glass material has a large weight, and the burden on the nose is heavier and affects the comfort. The material of acrylic can't be made so thin, and the material of acrylic (AC) is brittle and easy to break, and the safety is low. Due to its characteristics, the material of the resin cannot be made too thin and the process cannot be achieved.

To this end, the inventors, based on years of experience in the design, manufacture, and construction of related products, have researched and improved the shortcomings of the prior disclosure, and have invented this ultra-thin hyperopia lens through sophisticated mold design and advanced production processes. A lens that is lighter, thinner, and less prone to break than current aspheric telescope lenses.

The object of the present invention is to solve the problem of improving the thickness of the aspherical far vision lens too thick.

The aspherical ultra-thin hyperopia lens of the present invention, wherein the lens is provided with a convex surface and a concave surface, the convex surface is provided with a central area centered on the center of the lens and an annular area around the central area, and the annular area can be divided into a plurality of inner and outer portions. The center of the lens is a small annular area of the center of the circle. The spherical radius of the plurality of small annular regions from the inside to the outside is larger and larger. The spherical radius of the central region is smaller than the spherical radius of the annular region, and the central region and the plurality of small rings The spheres of the zone are tangent to each other in turn.

The aspherical ultra-thin distance vision lens of the present invention, wherein the circular area in which the central portion is located has a diameter of 30 mm, and the plurality of small annular areas from the inside to the outside are respectively 30-35 mm in diameter and 35-40 mm in diameter. The area covered by 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, 65-70 mm, 70 mm; and the spherical radius of the aforementioned central zone is 107-122 mm The spherical radius of the plurality of small annular regions from the inside to the outside is 121-129 mm, 125-136 mm, 129-143 mm, 133-150 mm, 137-157 mm, 141-164 mm, 145-171, respectively. Millimeter, 149-178 mm, 153-185 mm.

The aspherical ultra-thin hyperopia lens of the present invention, wherein the lens is made of a plurality of convex and concave molds of different degrees of specification, and a plurality of convex molds of different degrees of specification have a common die size, and the common die is shared. The spherical minimum point of the punch of multiple degrees must be kept at the same height to ensure the same thickness of the lens of different degrees.

The aspherical ultra-thin hyperopia lens of the present invention has the advantages of being light in weight, thin in thickness, and not easily broken by using a polycarbonate material as a lens.

In this way, in order to enable the examiner to fully understand the present invention, the following is a schematic diagram of the following: as shown in FIG. 1 and FIG. 2, an embodiment of the aspherical ultra-thin distance vision lens of the present invention includes a lens 31. A convex surface 311 and a concave surface 312, and the lens 31 is made of a polycarbonate material, so that the crystal grains of the lens 31 are fine and uniform, and have the advantages of corrosion resistance, acid resistance, high heat treatment hardness, and polishing to a super mirror surface. The convex surface 311 includes a central region 1 centered on the center of the lens 31 and an annular region around the outer periphery of the central region 1. The annular region can be divided into a plurality of small annular regions centered on the center of the lens from the inside to the outside. The spherical radius of the outer plurality of small annular regions is larger and larger, and the spherical radius of the central region 1 is smaller than the spherical radius of the annular region, and the spherical regions of the central region 1 and the plurality of small annular regions are sequentially two-two phases. Cut; the concave surface is a spherical surface.

Furthermore, the circular region of the convex region 311 of the aspherical ultra-thin telescopic lens 31 of the present invention has a circular region having a diameter Φ of 30 mm, and a plurality of small annular regions from the inside to the outside are respectively provided with a first small annular region. 2. Second small annular zone 3, third small annular zone 4, fourth small annular zone 5, fifth small annular zone 6, sixth small annular zone 7, seventh small annular zone 8, and eighth small annular zone 9 a ninth small annular zone 10; the first small annular zone 2, the second small annular zone 3, the third small annular zone 4, the fourth small annular zone 5, the fifth small annular zone 6, and the sixth small annular zone 7 , a small annular region 8 seventh, eighth small annular region 9, the circular region 10 of smaller diameter in the range ninth Φ respective annular region of 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm , 50-55 mm, 55-60 mm, 60-65 mm, 65-70 mm, 70 mm - the area covered by the lens frame. Moreover, the spherical radius SR of the central region 1 of the convex surface 311 of the lens 31 is 107 to 122 mm, and the spherical surfaces of the nine small annular regions 2, 3, 4, 5, 6, 7, 8, 9, 10 from the inside to the outside are obtained. The radius SR is 121 to 129 mm, 125 to 136 mm, 129 to 143 mm, 133 to 150 mm, 137 to 157 mm, 141 to 164 mm, 145 to 171 mm, 149 to 178 mm, and 153 to 185 mm, respectively. It may be selected or adjusted to the appropriate spherical radius SR according to the needs of the user.

As shown in FIG. 3 to FIG. 15 , in the manufacturing mold of the aspherical ultra-thin distance vision lens 31 of the present invention, the manufacturing mold of the aspherical ultra-thin distance vision lens 31 is provided with a convex mold 41 and a concave mold 42, and the convex mold 41 is convex. The exit surface 411 is a spherical surface, and the concave surface 421 of the concave die 42 includes a central region centered on the center of the concave surface 421 and an annular region around the outer periphery of the central portion. The annular region can be divided into a plurality of centers from the inside to the outside. In the small annular region of the center, the spherical radius of the plurality of small annular regions from the inside to the outside is larger and larger, and the spherical radius of the central region is smaller than the spherical radius of the annular region, and the central region and the plurality of small annular regions The spherical surfaces are tangent to each other in sequence; the concave surface 421 of the concave mold 42 is the same as the circular area diameter range Φ and the spherical surface radius SR of the convex surface 311 of the lens 31, and is manufactured by using the convex mold 41 and the concave mold 42. The aforementioned aspherical ultra-thin telescopic lens 31. Moreover, the plurality of metric stamps 41 of the present invention share a die 42 of a specification to produce a plurality of degrees of aspherical ultra-thin hyperopic lenses 31; in a pair of dies, a plurality of embosses of a die 42 are shared. The spherical minimum point height L of the die 41 must be kept at the same height (the height L shown by the punches in Figs. 3 to 15) to ensure that the thickness of the lens produced by a pair of molds of different degrees is uniform. Further, the punch 41 (or the movable die plate, the replaceable die plate) and the die 42 (or the static die plate, the positioning die plate) of the present invention must be heat treated to extend the service life of the die. The polishing of the convex core is the same as the polishing of the regular core, and the concave core is composed of a plurality of spherical surfaces, so that a more complicated core polishing technique is required. Since a plurality of degrees are to be used in one pair of molds, it is necessary to take into consideration the ease of disassembly of the core when designing the core, and more and more mold parts tend to be standardized due to the popularization of mold standardization, so the mold of the present invention There are many standard parts used, which shortens the mold manufacturing cycle and reduces the cost of the mold, such as faucets, thimbles, sprue bushings, screws, guide posts, guide bushings, etc.

Secondly, in the application examples of Figs. 3 to 15 of the present invention, the specifications of the punch 41 can be divided into 100 degrees (SR is 160 mm), 125 degrees (SR is 175 mm), and 150 degrees (SR is 190 mm). , 175 degrees (SR is 210 mm), 200 degrees (SR is 240 mm), 225 degrees (SR is 215 mm), 250 degrees (SR is 245 mm), 275 degrees (SR is 280 mm), 300 degrees (SR 13 degree specifications such as 325 mm), 325 degrees (SR is 390 mm), 350 degrees (SR is 510 mm), 375 degrees (SR is 670 mm), 400 degrees (SR is 1000 mm); and the die 42 There are three specifications, namely the first die 42 (the spherical radius SR from the inside to the outside is 122 mm, 129 mm, 136 mm, 143 mm, 150 mm, 157 mm, 164 mm, 171 mm, 178 mm, and The circular area diameter range Φ from the inside to the outside is 30 mm, 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, The area covered by the 65-mm lens frame), the second die 42 (the spherical radius SR is 115 mm, 125 mm, 135 mm, 145 mm, 155 mm, 165 mm, 175 mm, 185 mm from the inside to the outside). 195 mm, and the diameter of the circular area Sequentially from the inside outwardly around Φ 30 mm, 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, 65 mm lens The area covered by the outer frame) and the third die 42 (the spherical radius SR is 107 mm, 121 mm, 125 mm, 129 mm, 133 mm, 137 mm, 141 mm, 145 mm, 148 mm from the inside to the outside). , the circular area diameter range Φ from the inside to the outside of 30 mm, 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 Three sizes, such as the area covered by the millimeter and 65-mm lens frame. The punch 41 of 100 degrees to 175 degrees shares the first die 42; the die 41 of 200 degrees to 275 degrees shares the second die 42; the die 41 of 300 degrees to 400 degrees shares the third die 42. To cooperate with the manufacture of aspherical ultra-thin hyperopic lenses 31 of various degrees.

In this way, the aspherical ultra-thin hyperopia lens of the present invention can be manufactured by using the punch molds of different specifications and the corresponding die molds, and the crystal grains of the aspherical ultra-thin telescopic lenses are fine, uniform, anti-corrosive and anti-acid. Excellent, high heat treatment hardness, can be polished to super mirror surface, and the same thickness, so that users with higher degree of far vision will not cause a sudden sensation when using the lens, and it is lighter and has better appearance aesthetics. The composition of this case.

1. . . central area

2. . . First small ring zone

3. . . Second small ring zone

4. . . Third small annular zone

5. . . Fourth small ring zone

6. . . Fifth small ring zone

7. . . Sixth small ring zone

8. . . Seventh small ring zone

9. . . Eighth small ring zone

10. . . Ninth small ring zone

31. . . lens

311. . . Convex

312. . . Concave surface

Φ . . . Circular area diameter range

SR. . . Spherical radius

41. . . Punch

42. . . Die

411. . . Protruding surface

421. . . Concave surface

L. . . height

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of an aspherical ultra-thin distance vision lens of the present invention.

2 is a schematic view of a convex surface of an aspherical ultra-thin distance vision lens of the present invention.

Fig. 3 is a view showing an operation example (1) of the manufacturing mold of the aspherical ultra-thin telescopic lens of the present invention.

Fig. 4 is a view showing an operation example (2) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 5 is a view showing an operation example (3) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 6 is a view showing an operation example (4) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 7 is a view showing an operation example (5) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 8 is a view showing an operation example (6) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 9 is a view showing an operation example (7) of the manufacturing mold of the aspherical ultra-thin telescopic lens of the present invention.

Fig. 10 is a view showing an operation example (VIII) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 11 is a view showing an operation example (9) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 12 is a view showing an operation example (10) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 13 is a view showing an operation example (11) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 14 is a view showing an operation example (12) of the manufacturing mold of the aspherical ultra-thin distance vision lens of the present invention.

Fig. 15 is a view showing an operation example (13) of the manufacturing mold of the aspherical ultra-thin telescopic lens of the present invention.

1. . . central area

2. . . First small ring zone

3. . . Second small ring zone

4. . . Third small annular zone

5. . . Fourth small ring zone

6. . . Fifth small ring zone

7. . . Sixth small ring zone

8. . . Seventh small ring zone

9. . . Eighth small ring zone

10. . . Ninth small ring zone

31. . . lens

311. . . Convex

Claims (10)

An aspherical ultra-thin hyperopia lens comprising at least: a lens, a convex surface and a concave surface, wherein the lens is made of a polycarbonate material, and the convex surface is provided with a central area centered on the center of the lens and an annular area around the central area. The annular region can be divided into a plurality of small annular regions centered on the center of the lens from the inside to the outside, and the spherical radius of the plurality of small annular regions from the inside to the outside is larger and larger, and the spherical radius of the central region is smaller than the annular shape. The spherical radius of the region, and the central region and the spherical surfaces of the plurality of small annular regions are tangently cut in pairs; the annular region around the central portion of the convex surface of the aforementioned lens is composed of nine small annular regions, which are from the inside to the outside The circular area of the nine small annular zones has a diameter range of 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, respectively. 65-70 mm, 70 mm - the area covered by the lens frame. The aspherical ultra-thin hyperopia lens according to claim 1, wherein the circular region of the convex region of the lens has a diameter ranging from 30 mm. An aspherical ultra-thin hyperopia lens comprising at least: a lens, a convex surface and a concave surface, wherein the lens is made of a polycarbonate material, and the convex surface is provided with a central area centered on the center of the lens and an annular area around the central area. The annular region can be divided into a plurality of small annular regions centered on the center of the lens from the inside to the outside, and the spherical radius of the plurality of small annular regions from the inside to the outside is larger and larger, and the spherical radius of the central region is smaller than the annular shape. The spherical radius of the region, and the central region and the spherical surfaces of the plurality of small annular regions are tangently cut in pairs; the annular region around the central portion of the convex surface of the aforementioned lens is composed of nine small annular regions, which are from the inside to the outside The spherical radius of the nine small annular zones is 121-129 mm, 125-136 mm, 129-143 mm, 133-150 mm, 137-157 mm, 141-164 mm, 145-171 mm, 149-178, respectively. Mm, 153~185 mm. The aspherical ultra-thin hyperopia lens according to claim 1, wherein the spherical radius of the central portion of the convex surface of the lens is 107 to 122 mm. A mold for manufacturing an aspherical ultra-thin telescopic lens, comprising at least: a convex mold having a convex surface; a concave mold having a concave surface, wherein the concave surface is provided with a central portion centered on the center of the concave surface and an annular portion around the central portion, and the annular portion can be divided into a plurality of centers from the inside to the outside. In the small annular zone of the center, the spherical radius of the plurality of small annular zones from the inside to the outside is larger and larger, and the spherical radius of the central zone is smaller than the spherical radius of the annular zone, and the central zone and the plurality of small annular zones The spherical surfaces are tangently cut in pairs; the punches and the female molds are designed according to requirements, and the punches of various degrees of specifications have a common die, and the plurality of punches sharing a die The minimum height of the spherical surface must be kept at the same height to ensure that the thickness of the lens produced by a pair of molds is the same; thus, the aspherical ultra-thin hyperopia of various degrees can be manufactured by using the matching convex and concave molds. lens. The aspherical ultra-thin hyperopia lens according to claim 5, wherein a circular region in which the central portion of the concave surface of the concave mold is located has a diameter of 30 mm, and the outer periphery of the concave portion of the concave mold is surrounded by The annular zone is composed of nine small annular zones, and the circular zones of the nine small annular zones from the inside to the outside are respectively in the range of 30-35 mm, 35-40 mm, 40-45 mm, 45-50. Areas covered by millimeters, 50-55 mm, 55-60 mm, 60-65 mm, 65-70 mm, 70 mm-lens frame. The aspherical ultra-thin hyperopia lens according to claim 5, wherein a spherical radius of a central portion of the concave surface of the concave mold is 107 to 122 mm, and a ring around the central portion of the concave surface of the concave mold The fauna consists of nine small annular zones. The spherical radii of the nine small annular zones from the inside to the outside are 121-129 mm, 125-136 mm, 129-143 mm, 133-150 mm, and 137-157, respectively. Mm, 141~164mm, 145~171mm, 149~178mm, 153~185mm, can be selected or adjusted to the appropriate spherical radius according to the user's needs. According to claim 5, the aspherical ultra-thin hyperopic lens, wherein the convex surface has a spherical radius of 160 mm, 175 mm, 190 mm, 210 mm, and the spherical radius of the concave surface is matched. The inner and outer diameters are 122 mm, 129 mm, 136 mm, 143 mm, 150 mm, 157 mm, 164 mm, 171 mm, 178 mm, and the circular area of the concave surface is in the range of diameter from the inside to the outside. Areas covered by 30 mm, 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, 65-mm lens frames The concave mold produces aspherical ultra-thin hyperopic lenses of the same thickness of 100 degrees, 125 degrees, 150 degrees, and 175 degrees. According to the non-spherical ultra-thin distance vision lens described in claim 5, wherein the spherical radius of the convex surface is 240 mm, 215 mm, 245 mm, 280 mm spherical convex die, and the spherical radius of the concave surface is matched. The inner and outer diameters are 115 mm, 125 mm, 135 mm, 145 mm, 155 mm, 165 mm, 175 mm, 185 mm, 195 mm, and the circular area of the concave surface is 30 mm in diameter from the inside to the outside. Dies in the areas covered by the 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, 65-mm lens frames, Aspherical ultra-thin hyperopic lenses of the same thickness of 200 degrees, 225 degrees, 250 degrees, and 275 degrees are produced. The aspherical ultra-thin hyperopia lens according to claim 5, wherein the convex surface has a spherical radius of 325 mm, 390 mm, 510 mm, 670 mm, and 1000 mm, which is matched with the concave surface. The radius of the spherical surface is 107 mm, 121 mm, 125 mm, 129 mm, 133 mm, 137 mm, 141 mm, 145 mm, 148 mm from the inside to the outside, and the diameter of the circular area of the concave surface ranges from the inside to the outside. Areas covered by 30 mm, 30-35 mm, 35-40 mm, 40-45 mm, 45-50 mm, 50-55 mm, 55-60 mm, 60-65 mm, 65-mm lens frames The die is made of aspherical ultra-thin telescopic lenses having the same thickness of 300 degrees, 325 degrees, 350 degrees, 375 degrees, and 400 degrees.