Resin material for optical use and optical device

A technology of resin materials and optics, applied in the field of optical resin materials, optical components, and optical resin materials, can solve the problems that the lens is easily deformed by heat, achieve excellent thermal stability, high light transmittance, and suppress the reduction of optical performance Effect

Inactive Publication Date: 2010-07-21
KONICA MINOLTA OPTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] With regard to thermoplastic resins, because they soften and melt at relatively low temperatures, they have good processability, but the disadvantage is that the molded lenses are easily deformed by heat. Therefore, as other plastic materials used for optical lenses, thermosetting resins such as silicone resins have also been studied (such as , refer to Patent Document 2)
However, there is no thermosetting resin as an optical lens that satisfies moldability and heat resistance.

Method used

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  • Resin material for optical use and optical device
  • Resin material for optical use and optical device
  • Resin material for optical use and optical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] (1) Manufacture of inorganic particles

[0110] Inorganic fine particles 1 to 12 were produced in the following procedure.

[0111] [Manufacture of inorganic fine particles 1]

[0112] To the mixed solution of 463.1g of pure water, 104.8g of 26% ammonia water, and 4255.0g of methanol, keep the liquid temperature at 25°C and add dropwise the mixed solution of 1368g of tetramethoxysilane (TMOS), 229.4g of methanol and 643.2g of pure water for 150 minutes. g, a mixed solution of 104.8 g of 26% ammonia water, and then a mixed solution of 5969 g of titanium tetraisopropoxide and 150 g of isopropanol was added over 100 minutes to obtain a silica / titanium mixed sol. The sol was heated and distilled under normal pressure, and pure water was added dropwise while maintaining a certain volume, and the dropwise addition of pure water was stopped when it was confirmed that the temperature at the top of the tower reached 100°C and the pH reached 8 or less, to obtain a fine particle ...

Embodiment 2

[0163] (1) Manufacture of optical components

[0164] [Manufacture of Optical Element 1]

[0165] 1-adamantyl methacrylate, surface-treated inorganic fine particles 1A as inorganic fine particles, phenolic antioxidant (manufactured by Chiba Special Products Chemical Co., Ltd., Irganox 1010), and 1,1-bis(tert-butyl Peroxide)-3,3,5-trimethylcyclohexane (manufactured by NOF Corporation, PA KISA 3M-95) was mixed so that the inorganic particles reached 20% by volume, and Polylabosystem manufactured by Hideo Seiki was used to Kneading was performed at 20°C. Then extrude the kneaded product into a metal mold at 110°C with an injection molding machine, pressurize at 150°C for 3 minutes, and make figure 1 Optics of the shape shown. Let this be an optical element 1 .

[0166] [Manufacture of Optical Element 2]

[0167] The optical element 2 was manufactured by the same manufacturing method as the above-mentioned optical element 1 except that the surface-treated inorganic fine parti...

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Abstract

Disclosed is a resin material for optical use, which has refractive index and transparency suitable for optical devices, while having extremely small changes in refractive index dependent on temperature. In addition, the resin material for optical use is excellent in moldability and heat resistance, and enables to suppress a decrease in optical performance after a reflow process. Also disclosed is an optical device using such a resin material for optical use. Specifically disclosed is a transparent resin material for optical use which is composed of a curable resin containing inorganic fine particles whose surfaces are modified with an organic compound. This transparent resin material for optical use is characterized in that the inorganic fine particles are composed of an amorphous silica containing a metal oxide crystal, and have an average particle diameter of not less than 1 nm but not more than 50 nm.

Description

technical field [0001] The present invention relates to optical resin materials and optical elements, and in particular to optical resin materials suitable for use as lenses, filters, gratings, optical fibers, flat optical waveguides, etc., and optical elements using the materials. Background technique [0002] Examples of optical elements that transmit light and achieve desired optical functions include optical lenses and correction elements used in various optical instruments. Examples include imaging optical systems used in imaging devices such as silver salt cameras, digital cameras, and medical imaging devices, optical systems of optical pickup devices, optical elements used in optical communication modules, and the like. For these, general optical elements made of glass or plastic can be used. [0003] In particular, plastic optical elements can be formed by injection molding or extrusion molding. Since they can be molded at a lower temperature, they can be manufactur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/04C08K9/04C08L101/00
CPCC08K9/04G02B1/04G02B1/041Y10T428/2982
Inventor 当间恭雄
Owner KONICA MINOLTA OPTO
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