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Intraocular lens forming mold

A technology for forming molds and intraocular lenses, which is applied to household appliances, other household appliances, optical components, etc., can solve the problems of poor imaging effect and affect product quality, and achieve the goal of avoiding optical eccentricity, saving production materials, and improving imaging quality. Effect

Active Publication Date: 2020-04-21
DONGGUAN HEC MEDICAL INTELLIGENT DEVICE R&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Optical eccentric intraocular lens will lead to poor imaging effect of the final product and affect product quality

Method used

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  • Intraocular lens forming mold
  • Intraocular lens forming mold
  • Intraocular lens forming mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Such as figure 2 As shown, a mold for forming an intraocular lens includes a male mold 1 and a female mold 2, the male mold 1 is arranged above the female mold 2, and the middle area of ​​the male mold 1 is an upwardly convex arc-shaped area, and the arc-shaped area of ​​the The centerline is the centerline of the first optical zone of the male mold 1; The bottom of the male mold 1 is provided with a first boss 101 which rotates and extends around the circumferential direction, such as Figure 4 As shown, the first boss 101 is an annular boss, the cross-sectional shape of the first boss 101 is trapezoidal, and the rotation axis of the first boss 101 is on the same straight line as the centerline of the first optical zone. The top of the female mold 2 is provided with a second groove 201 rotating and extending around the circumferential direction, such as Figure 5 As shown, the second groove 201 is an annular groove, the cross-sectional shape of the second groove 201...

Embodiment 2

[0081] The difference between this embodiment and Embodiment 1 is:

[0082] In this embodiment, if Figure 7 As shown, the cross-sectional shape of the first boss 101 and the second groove 201 is rectangular, wherein, the protruding end of the first boss 101 can also be set as Figure 8 As shown in the boss chamfer 6, the cross-sectional shape of the first boss 101 is designed as a rectangle, and the boss chamfer 6 is set on the protruding end of the first boss 101, which can ensure that the first boss 101 can be inserted easily. The second groove 201 can reduce the manufacturing difficulty of the mold and simplify the manufacturing process, thereby reducing the manufacturing cost.

[0083] Of course, in other embodiments, the cross-sectional shape of the first boss and the second groove can also be triangular. Setting a triangular shape can not only facilitate quick positioning, but also save material. The cross-sectional shape of the first boss can also be set as a triangl...

Embodiment 3

[0085] The difference between this embodiment and embodiment two is:

[0086] Such as Figure 9 As shown, the male mold 1 is provided with a first groove 102; the female mold 2 is provided with a second boss 202, the cross-sectional shape of the second boss 202 is rectangular, and the cross-sectional shape of the first groove 102 is rectangular.

[0087] When in use, the second boss 202 is inserted into the first groove 102 to realize the clamping of the male mold 1 and the female mold 2 and play a positioning role, thereby ensuring that the centers of the optical zones of the male mold 1 and the female mold 2 are at the same On a straight line to avoid optical decentering, which will affect the imaging quality of the product.

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Abstract

The invention discloses an artificial lens forming mold, comprising a first mold and a second mold. The middle of the first mold is provided with a first optical area; the first mold is provided witha positioning terrace rotationally extended along the periphery; a rotational axis of the positioning terrace and a center line of the first optical area are collinear; the middle of the second mold is provided with a second optical area, the second mold is provided with a positioning groove rotationally extended along the periphery, and a rotational axis of the positioning groove and a center line of the second optical area are collinear; the height of the positioning terrace is less than or equal to the depth of the positioning groove; in closing state, the positioning terrace is inserted into the positioning groove, and the rotational axis of the positioning terrace and that of the positioning groove are collinear. The artificial lens forming mold enables optical centers of male and female molds to be effectively positioned and to be collinear, and positioning is simple and fast.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to an artificial crystal molding mould. Background technique [0002] Such as figure 1 As shown, the IOL forming mold in the prior art is divided into upper and lower parts, the upper part is named male mold 1, and the lower part is named female mold 2. The combination of the male mold 1 and the female mold 2 will form a cavity 3, and the intraocular lens is molded in the cavity 3. [0003] During the mold closing process of the male mold 1 and the female mold 2, it is necessary to ensure that the centerline of the optical zone of the male mold and the centerline of the optical zone of the female mold are on a straight line, otherwise the produced IOL will be optically decentered. Optical eccentric IOLs will lead to poor imaging effects of the final product and affect product quality. [0004] Therefore, there must be an effective positioning structure on the male mold 1 and the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/30B29L11/00
CPCB29C33/303B29L2011/00
Inventor 罗敏曹立
Owner DONGGUAN HEC MEDICAL INTELLIGENT DEVICE R&D CO LTD