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Efficient production device for optical lenses

A technology for optical lenses and production equipment, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of uneven thickness distribution and irregular shape of aspheric lenses, and achieve good fluidity, uniform distribution, and thickness evenly distributed effect

Active Publication Date: 2017-11-24
成都随如科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of uneven thickness distribution and irregular shape of aspheric lenses after compression molding. Problems with uneven thickness distribution and irregular shape

Method used

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  • Efficient production device for optical lenses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a high-efficiency production equipment for optical lenses of the present invention includes a lower mold base 1, a concave mold 2, a convex mold 3 matched with the concave mold 2, the concave mold 2 is located on the mold base 1, and the convex mold 3 is located on the concave mold 2 Directly above, the inside of the lower mold base 1 is provided with a passage 4, and the passage 4 communicates with the glass heating furnace. The central axis of the center axis is perpendicular to the upper surface of the lower mold base 1, the discharge pipe 5 is located above the lower mold base 1 and fixed with the lower mold base 1, and the side of the discharge pipe 5 facing the die 2 is provided with a discharge port. Located above the die 2 , an inclined plate 6 is arranged between the lower wall of the discharge port and the top of the die 2 , and the discharge port communicates with the die 2 through the inclined plate 6 . The channel 4 is an annular...

Embodiment 2

[0025] Based on Example 1, the passage 4 and the lower mold base 1 of the die 2 are set as a heat insulating layer 7, and a cavity 8 for condensing water is arranged between the heat insulating layer 7 and the outer wall of the die 2, and the die 2 is located in the cavity. cavity 8 inside.

[0026] Condensed water improves the condensation speed of condensation forming, saves time and cost, and the heat insulation layer prevents molten glass in the condensed water condensation channel.

Embodiment 3

[0028] Based on the above embodiment, the lower mold base 1 outside the passage 4 is set as a heat conduction layer 9 , the heat conduction layer 9 is located on the side of the passage 4 away from the die 2 , and a heating wire 10 is installed inside the heat conduction layer 9 . The heat conduction layer is used to keep the molten glass inside the channel from condensing in advance.

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PUM

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Abstract

The invention discloses an efficient production device for optical lenses. The efficient production device comprises a lower die holder, a female die and a male die, the male die is matched with the female die, the female die is positioned on the die holder, the male die is positioned above the female die, a channel is formed in the lower die holder and communicated with a glass heating furnace, a discharging pipe communicated with the channel is arranged on the side surface of the female die, a center shaft of the discharging pipe is perpendicular to the upper surface of the lower die holder, the discharging pipe is positioned above the lower die holder and fixed with the lower die holder, a discharging port is formed in the one side of the discharging pipe facing the female die and positioned above the female die, an inclined plate is arranged between the lower wall of the discharging port and the top of the female die, and the discharging port is communicated with the female die through the inclined plate. The efficient production device combines injection molding and compression molding and solves the problem that the shape of a current non-spherical lens after compression molding is irregular, and the inclined plate controls the flow velocity of molten glass materials, so that the problem of nonuniform thickness distribution of the shape of the non-spherical lens is solved.

Description

technical field [0001] The invention relates to a molding device, in particular to a high-efficiency production equipment for optical lenses. Background technique [0002] A spherical lens has a constant curvature from the center to the edge of the lens, while an aspheric lens has a continuously changing curvature from the center to the edge. In photographic lenses, numerous "aberrations" must be corrected in order to maintain optical performance. If only a spherical lens is used for correction, many lens combinations are required to meet the technical requirements of the lens. For special high-end lenses, it is sometimes impossible to correct aberrations to the user's satisfaction with spherical lenses alone. [0003] Compression molding is one of the commonly used methods in the molding process of aspheric lenses at present. Compression molding is to heat the glass material to a high temperature to become plastic, shape it through an aspheric mold, and then gradually coo...

Claims

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Application Information

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IPC IPC(8): C03B19/02
CPCC03B19/02
Inventor 徐治洲罗俊松肖邵斌
Owner 成都随如科技有限公司