Polarizing element and manufacturing method thereof
A polarizing element and polarizing film technology, applied in optical elements, polarizing elements, optics, etc., can solve problems such as loss of polarizing effect of polarizing elements, humidity requirements of polarizing elements, inability to uniform polarization absorption characteristics of electromagnetic waves, etc., and achieve uniform polarization absorption performance, Wide due range of effects
Active Publication Date: 2013-08-21
TSINGHUA UNIV +1
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Moreover, this type of polarizing element also has high requirements on humidity. Once the working environment is harsh and the humidity is high, the polarizing element will lose its polarizing effect
[0005] In addition, the existing polarizers generally only have good polarization properties for electromagnetic waves of a certain wavelength (such as microwaves, infrared light, visible light, ultraviolet light, etc.), and cannot have uniform polarization absorption characteristics for electromagnetic waves of various wavelengths.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0020] see figure 2 , the preparation method of the polarizing element 10 according to the embodiment of the present invention mainly includes the following steps:
[0021] Step 1: providing a carbon nanotube array, preferably, the array is a super-aligned carbon nanotube array.
[0022] In this embodiment, the preparation method of the super-parallel carbon nanotube array adopts the chemical vapor deposition method, and its specific steps include: (a) providing a flat substrate, which can be a P-type or N-type silicon substrate, or a silicon substrate formed with The silicon base of oxide layer, present embodiment preferably adopts the silicon base of 4 inches; (b) uniformly form a catalyst layer on the base surface, this catalyst layer material can be selected iron (Fe), cobalt (Co), nickel (Ni) or one of alloys in any combination thereof; (c) annealing the above-mentioned substrate formed with a catalyst layer in air at 700-900° C. for about 30 minutes to 90 minutes; (d) ...
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
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to an optical polarizing element, which comprises a supporting body and a polarizing film arranged on the supporting body. The polarizing film is at least one layer of carbon nanometer tube film; the carbon nanometer tube film has a continuous integral structure with the width of 1 to 10 cm, which is formed by combining a plurality of carbon nanometer tubes through a Van derWaals' force; and the carbon nanometer tubes in the at least one layer of carbon nanometer tube film are arrayed in a preferred orientation way along the same direction. Because the carbon nanometer tubes have high-temperature thermal stability, and have a uniform absorption characteristic for electromagnetic waves with various wavelengths, the polarizing element has the uniform absorption characteristic for the electromagnetic waves with the various wavelengths, and has a wide application range. The invention also relates to a manufacturing method for the optical polarizing element.
Description
[0001] This case is a divisional application filed by the applicant on March 30, 2007 with the application number 200710073765.8 and the name "Polarizing Element and Its Preparation Method". technical field [0002] The invention relates to an optical device and a preparation method thereof, in particular to a polarizing element and a preparation method thereof. Background technique [0003] Polarizer is an important optical device widely used in sunglasses and liquid crystal displays. A polarizing element that is widely used now can absorb light of one polarization state, while light of another polarization state passes through the polarizing element. Such a polarizing element is usually produced by dissolving or absorbing dichroic molecules in a polymer substance, such as polyvinyl alcohol, and stretching the resulting film in one direction to align the dichroic molecules. At this time, the dichroic molecules are regularly arranged along the stretching direction to form a...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/30G02B1/10
Inventor 冯辰姜开利刘亮张晓波范守善
Owner TSINGHUA UNIV