Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of lens mold and lens mold

A manufacturing method and mold technology, applied to lenses, household appliances, and other household appliances, can solve the problems of reduced light transmission, reduced visibility, overlapping, etc., and achieve the effect of suppressing manufacturing deviations

Active Publication Date: 2021-02-19
SHARP KK
View PDF25 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because, for example, as in the case of light entering the interface between air and glass, when light passes through the interface of media with different refractive indices, the amount of light transmitted decreases due to Fresnel reflection, etc., resulting in possible decreased vision
In addition, for example, light reflection on the surface of the camera lens may cause images to overlap due to internal reflection of the lens (ghost image), or light from behind to be reflected (halo)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of lens mold and lens mold
  • Manufacturing method of lens mold and lens mold
  • Manufacturing method of lens mold and lens mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0058] refer to figure 1 (a)~ figure 1 (c) The structures of the lens mold 100A and the lens mold 100B according to Embodiment 1 of the present invention will be described. figure 1 (a) is a perspective view schematically showing the lens mold 100A, figure 1 (b) is a schematic cross-sectional view of the lens mold 100A, figure 1 (c) is a schematic cross-sectional view of the lens mold 100B.

[0059] The lens mold 100A and the lens mold 100B according to the embodiment of the present invention have an inverted optical curved surface 22 on the surface. The inverted optical curved surface 22 is a curved surface corresponding to the optical curved surface of the lens. For example, if figure 1 As shown, the inverted optical curved surface 22 constituting a concave surface can form the convex surface of the lens. The optical curved surface of the lens is not limited to a spherical surface, and may also be an aspherical surface. A desired optical curved surface can be formed b...

Embodiment approach 2

[0166] refer to Figure 11 The manufacturing method of the mold for lenses which concerns on Embodiment 2 of this invention is demonstrated. Figure 11 (a)~ Figure 11 (c) is a schematic perspective view for demonstrating the manufacturing method of the lens mold of Embodiment 2.

[0167] Such as Figure 11 (a)~ Figure 11 As shown in (c), the difference between the manufacturing method of the lens mold according to Embodiment 2 and the manufacturing method of the lens mold 100A is that a flat aluminum substrate 10Ap is used. In the method of manufacturing the lens mold 100A, the columnar or cylindrical aluminum base 10A is used as described above.

[0168] First, if Figure 11 As shown in (a), a flat aluminum substrate 10Ap is prepared.

[0169] Secondly, if Figure 11 As shown in (b), a plurality of inverted optical curved surfaces 22 are formed on the surface of the aluminum substrate 10Ap.

[0170] Then, using the reference image 3 (a)~ image 3 (e) In the same ...

Embodiment approach 3

[0175] refer to Figure 12 A method for manufacturing the lens mold 100C and the lens mold 100C according to Embodiment 3 of the present invention will be described. Figure 12 It is a schematic perspective view for demonstrating the structure of 100 C of lens molds, and the manufacturing method of 100 C of lens molds. Hereinafter, differences from Embodiment 1 will be mainly described.

[0176] Such as Figure 12As shown, the difference between the lens mold 100C and the lens mold 100A is that the surface has a plurality of inverted optical curved surfaces 22 .

[0177] For the manufacturing method of the lens mold 100C, refer to Embodiment 1. figure 2 (d), Figure 4 (c) and Figure 4 (d) In the process described, that is, in the process of cutting out a part including at least one of a plurality of inverted optical curved surfaces 22 from an aluminum substrate, cutting out a portion including a plurality of inverted optical curved surfaces 22 The portion of the optica...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
depthaaaaaaaaaa
diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

A method for manufacturing a lens mold having at least one inverted optical curved surface (22) on its surface comprises the following steps: (a) preparing an aluminum substrate (10A) having a plurality of inverted optical curved surfaces (22) on its surface, or Prepare a mold base material (10B), the mold base material (10B) has a base material (12), and an aluminum layer (16) supported on the base material and having a plurality of inverted optical curved surfaces (22) on the surface; (b ) forming a porous alumina layer (18) having a plurality of fine recesses (18p) by anodizing the surface of the aluminum substrate or the aluminum layer; and (c) after step (b), by making the porous alumina layer (18) When the layer is brought into contact with the etchant, the many fine recesses of the porous alumina layer are enlarged.

Description

technical field [0001] The invention relates to a method for manufacturing a lens mold and the lens mold. Background technique [0002] Optical components such as display devices or camera lenses used in TVs or mobile phones usually use anti-reflection technology to reduce surface reflections and increase light transmission. This is because, for example, as in the case of light entering the interface between air and glass, when light passes through the interface of media with different refractive indices, the amount of light transmitted decreases due to Fresnel reflection, etc., resulting in possible Decreased visibility. Furthermore, for example, reflection of light on the surface of a camera lens may cause a phenomenon in which images overlap due to internal reflection of the lens (ghost image), or a phenomenon in which light from behind is reflected (halo). [0003] Conventionally, for example, a method of forming a layer (antireflection film) on the surface of a lens m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/12B29C33/38B29C59/02C25D11/04C25D11/06C25D11/16C25D11/24G02B1/118G02B3/00B29L11/00
CPCB29C33/38B29C59/02C25D11/04C25D11/06C25D11/12C25D11/16C25D11/24G02B1/118G02B3/00
Inventor 山田美穗箕浦洁中原隆裕
Owner SHARP KK