Supercharge Your Innovation With Domain-Expert AI Agents!

Method for producing plastic lens

A technology of plastic lens and manufacturing method, which is applied in the direction of lens and patterned surface photoplate making process, instruments, etc., and can solve the problems of complex lens forming process and expensive processing equipment, etc.

Inactive Publication Date: 2011-09-07
ASAHI KASEI KK
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the lens forming process is complicated and expensive processing equipment is required

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
  • Method for producing plastic lens
  • Method for producing plastic lens
  • Method for producing plastic lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] [Embodiment 1] Manufacturing method of microlens 1 utilizing mold

[0128] Carry out the following steps in sequence to manufacture the microlens.

[0129] Step 1) Using a glass pipette, drop 5 drops of the above photosensitive resin composition 1 into a plastic lens mold made of nickel with a maximum depth of 30 μm, a diameter of 100 μm, and several hundred openings, to combine the photosensitive resin Object 1 fills the mold. An alkali-free glass substrate (10 cm square, 0.7 mm thick) manufactured by Corning was used as a substrate, and the opening of the mold was pressed onto the substrate.

[0130] Step 2) In the state where the photosensitive resin composition is sandwiched between the substrate and the mold, using a proximity exposure device manufactured by CANON, a mirror image projection aligner is used to irradiate the entire surface with ultraviolet rays without a mask from the glass substrate side. The irradiation dose at i-ray wavelength (365nm) is 400mJ / c...

Embodiment 2

[0133] [Embodiment 2] Manufacturing method of microlens 2 utilizing mold

[0134] It carried out similarly to Example 1 except that the 1st step was the following procedure.

[0135] Step 1) Use Corning's alkali-free glass substrate (10cm square, 0.7mm thickness) as the substrate, use MEMO as the silane compound, dilute the MEMO to 5% by weight with NMP solvent, and use it at 1000rpm for 20 seconds Spin coater for coating. The coated glass substrate was heated with the silane compound-attached surface facing upward at 120° C. for 5 minutes on a hot plate, and then cooled. The thickness of the silane compound layer of the obtained silane compound-attached substrate was 0.01 μm or less. Using a glass pipette, 5 drops of the above-mentioned photosensitive resin composition 1 were dropped into a plastic lens mold made of nickel having an opening, so that the mold was filled with the photosensitive resin composition 1 . Next, the opening of the mold is pressed against the silane...

Embodiment 3

[0136] [Embodiment 3] Manufacturing method of microlens 3 utilizing mold

[0137] Except having used the photosensitive resin composition 2 instead of the photosensitive resin composition 1, it carried out similarly to Example 2.

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
thermal resistanceaaaaaaaaaa
thermal resistanceaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Disclosed is a method for producing a plastic lens having reflow heat resistance at 260 DEG C, which is characterized in that a photosensitive resin composition containing a specific resin and a photopolymerization initiator is molded into a lens shape. The resin is obtained by mixing one or more compounds (a) selected from the group consisting of (CH3O)3-Si-(CH2)3-O-CO-C(CH3)=CH2, (CH3O)3-Si-(CH2)3-O-CO-CH=CH2, (CH3O)3-Si-(CH2)x-CH=CH2 (wherein X is 1 or 2), (CH3O)2-Si(CH3)(CH2)3-O-CO-C(CH3)=CH2, (CH3O)2-Si(CH3)(CH2)3-O-CO-CH=CH2 and (CH3O)2-Si(CH3)-(CH2)x-CH=CH2 (wherein X is 1 or 2), with a compound (b) represented by (C6H5)2-Si-(OH)2 such that 50-150 moles of the compounds (a) is mixed per 100 moles of the compound (b), and then polycondensing the mixture at 40-150 DEG C for 0.1-10 hours in the presence of a catalyst.

Description

technical field [0001] The present invention relates to a method of manufacturing a plastic lens mainly for optical use. More specifically, it relates to a method of manufacturing a plastic lens for a solid-state imaging device represented by a microplastic lens for optical communication and a CMOS image sensor. Also, when the size of the plastic lens is small, it is called a microplastic lens or a mini lens. Background technique [0002] Since plastic lenses are easier to form and less expensive than glass, they are widely used in various optical products. As its material, thermoplastics such as polymethyl methacrylate and polystyrene, and thermosetting plastics such as polyethylene glycol diallyl carbonate and various transparent materials are used. [0003] However, in conventional materials, as shown in Patent Documents 1 and 2, even if the heat resistance is improved, most of them only have heat resistance below 200°C, so 260°C reflow heat resistance cannot be guarant...

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): G02B1/04G02B3/00G02F1/1335C08G77/20C08G85/00G03F7/075
Inventor 小林隆昭美河正人
Owner ASAHI KASEI KK
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com