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Optical device, image-capturing apparatus, electronic apparatus, and method for producing optical device

An optical element, light transmittance technology, applied in optical elements, optics, electrical elements, etc., can solve problems such as anti-reflection film defects

Inactive Publication Date: 2013-10-23
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, there is a problem that the anti-reflection film formed is defective due to particles, foreign matter, dust, etc. generated during the operation from mounting the base material on the jig to vacuuming the vapor deposition device. bad situation

Method used

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  • Optical device, image-capturing apparatus, electronic apparatus, and method for producing optical device
  • Optical device, image-capturing apparatus, electronic apparatus, and method for producing optical device
  • Optical device, image-capturing apparatus, electronic apparatus, and method for producing optical device

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Embodiment Construction

[0056] Embodiments of the present invention will be described with reference to the drawings.

[0057] figure 1 A cross section of the main part of the optical element 1 of the embodiment is shown in .

[0058] figure 1 Among them, the optical element 1 constituted includes a light-transmitting substrate 11, a hard coat layer HC provided on the main surface of the light-transmitting substrate 11, and an organic antireflection layer provided on the main surface of the hard coat layer HC. 12. The organic antireflection layer 12 is provided on one or both of the two main surfaces of the translucent substrate 11 .

[0059] In this embodiment, a waterproof film 13 may be provided on the organic antireflection layer 12 .

[0060] The optical element 1 is a birefringent plate, a cover, a cover glass used in an imaging device of a digital camera; or a wave plate, a dustproof glass used in a liquid crystal projector and a pickup device; and other optical elements.

[0061] (1. Tra...

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Abstract

An optical device includes an inorganic light-transmissive base material, a hard coat layer, which is provided on a principal surface of the light-transmissive base material and is harder than the light-transmissive base material, and an organic antireflection layer, which is provided on a principal surface of the hard coat layer and contains an organosilicon compound, an epoxy group-containing organic compound, and hollow silica. The hard coat layer and at least one of the organosilicon compound and the epoxy group-containing organic compound are covalently bonded to each other. The occurrence of a defect in the organic antireflection layer can be prevented. The organic antireflection layer has a higher dust-proof effect than an inorganic antireflection film, and therefore, dirt, dust, etc. hardly adhere thereto.

Description

technical field [0001] The present invention relates to an optical element, an imaging device and electronic equipment including the optical element, and a method of manufacturing the optical element. Background technique [0002] Imaging devices are used in digital cameras and the like. The structure of the imaging device is as follows: an imaging element such as a CCD is arranged at the bottom of the container, a cover disposed opposite to the imaging element is installed on the container, and an optical low-pass filter is disposed opposite to the imaging element together with the cover. [0003] In some optical elements such as covers and optical low-pass filters, an antireflection film is formed on a light-transmitting substrate made of an inorganic material. [0004] As an antireflection film, there is a conventional example composed of inorganic materials, in which a layer mainly composed of a mixed oxide film of titanium and lanthanum and a layer mainly composed of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11G02B1/04H04N5/225G02B1/10G02B1/111G02B1/14G02B1/18H01L27/14H01L27/146
CPCG02B1/11G02B1/105G02B1/111G02B1/18G02B1/14
Inventor 古里大喜星野悠太
Owner SEIKO EPSON CORP