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A light-transmitting alumina substrate and its preparation method

An alumina substrate, alumina technology, applied in optics, nano-optics, optical components, etc., can solve problems affecting the mechanical strength and chemical stability of light-transmitting alumina substrates

Inactive Publication Date: 2017-01-04
MECO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Nevertheless, the existing technologies for increasing the light transmittance of alumina substrates, their materials and processing techniques are difficult to process for light-transmitting alumina substrates, and affect the mechanical strength of light-transmitting alumina substrates to a certain extent. and chemical stability, in view of this, new structures and processing techniques are required to be applied in the field of alumina substrate light transmission processing

Method used

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  • A light-transmitting alumina substrate and its preparation method
  • A light-transmitting alumina substrate and its preparation method
  • A light-transmitting alumina substrate and its preparation method

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Embodiment Construction

[0040] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0041] refer to figure 1 , which shows a light-transmitting alumina substrate having a discontinuous optical coating layer comprising a plurality of nanohelices composed of a first material. The substrate structure can be applied to light-transmitting windows on various devices, equipment or instruments, light-transmitting protective sheets of displays, substrates of light-emitting devices, or protective windows of light-transmitting energy-collecting devices. figure 1 , an example shows a light-transmittable substrate 1 made of alumina, on the top surface of the substrate 1 (based on figure 1 The angle of view) is provided with a discontinuous coating layer 2 composed of nano-scale helices, and the nano-scale helices are composed of the first material. It needs to be understood that, figure 1 The arrangement of the cladding la...

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Abstract

The application discloses a light-transmitting aluminum oxide substrate and a preparation method thereof. The light-transmitting aluminum oxide substrate comprises a light-transmitting aluminum oxide base. At least partial part of the area of at least one surface of the light-transmitting aluminum oxide base is coated with a discontinuous optical coating layer which comprises multiple nano-scale growth axial deviation growth bodies formed by first material. The surface profile of the light-transmitting aluminum oxide base can be changed and a refractive index matching layer can be formed by utilizing the discontinuous optical coating layer so that influence of interface reflection can be reduced and light transmittance can be enhanced.

Description

technical field [0001] The present application relates to light-transmitting alumina technology, in particular, to a light-transmitting alumina substrate and a preparation method thereof. Background technique [0002] Light-transmitting alumina substrates are widely used in the fields of optics, mechanics, electricity, and biology because of their good optical penetration, mechanical strength, electrical properties, and chemical stability. However, the light-transmitting alumina substrate exhibits different optical transmittance in different bands of the spectrum. For example, in the 200nm to visible light band, its light transmittance is about 81%-85%, so at least in this range, the light transmittance There is still room for improvement in the optical transparency of alumina substrates. [0003] The poor light transmittance performance of the light-transmitting alumina substrate in the above-mentioned spectral band range is mainly due to the high refractive index (about 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/10G02B1/111B82Y20/00
Inventor 谢国伟谭海岚李敬辉李嘉旋卢明
Owner MECO TECH
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