Unlock instant, AI-driven research and patent intelligence for your innovation.

Refractive index matching liquid and optical detection method of glass

A technology of refractive index matching liquid and compound, which is applied in the field of optical detection of refractive index matching liquid and glass, can solve the problems of high cost, high cost of use, heavy odor, etc., and achieve the effect of low environmental pressure, low cost, and low odor

Pending Publication Date: 2021-08-31
光华科学技术研究院(广东)有限公司 +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At this stage, most of the refractive index matching liquids are imported from abroad, and the cost of use is high, especially for some glass devices with a specific refractive index range (such as strengthened glass), the refractive index matching liquid needs to be customized, and the cost is higher
In addition, the existing refractive index matching fluids are sensitive to temperature, and their refractive index values ​​are greatly affected by temperature. In some detection fields with large temperature ranges, if the refractive index of the refractive index matching fluid fluctuates Larger, it is also not conducive to the accuracy of the test results
For example, testing the stress value of tempered glass is usually carried out at a temperature of 25±15°C. If within this temperature range, the refractive index fluctuation of the refractive index matching liquid is greater than 0.01, it will affect the accuracy of the test results.
Moreover, some refractive index matching fluids are even added with organic substances such as brominated naphthalene, diiodomethane, and arsenic sulfide. These organic substances contain halogens and are highly toxic, volatile, heavy in odor, poor in stability, and expensive. high cost

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
  • Refractive index matching liquid and optical detection method of glass
  • Refractive index matching liquid and optical detection method of glass
  • Refractive index matching liquid and optical detection method of glass

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] Optionally, the above-mentioned preparation method further includes the step of mixing and stirring the above-mentioned at least two lipid compounds and a surfactant.

[0058] It can be understood that mixing and stirring can be carried out in a mixing tank.

[0059] The above-mentioned refractive index matching liquid has simple preparation process, low cost, little smell and non-toxicity.

[0060] The refractive index matching liquid of the present invention can be used between two kinds of optical devices.

[0061] An optical inspection method for glass, comprising the step of using the above-mentioned refractive index matching liquid.

[0062] It will be appreciated that the optical inspection of glass may be a glass stress test. Filling the above-mentioned refractive index matching liquid in the gap between the glass to be tested and the strain gauge can greatly improve the accuracy of test results and reduce glass wear. Moreover, the refractive index matching l...

Embodiment 1

[0065] This embodiment provides a refractive index matching liquid and a preparation method thereof. Proceed as follows:

[0066] 1) Weigh raw materials with reference to the following mass percentages:

[0067] 22.3% isopropyl myristate, 76.2% ethyl benzoyl acetate, 0.5% polyvinyl alcohol, 1% Span 65.

[0068] 2) Add the above raw materials into the mixing tank in sequence, stir and mix evenly, filter and use ultrasonic to remove air bubbles and pack to obtain the refractive index matching liquid.

[0069] 3) The refractive index value of the above-mentioned refractive index matching liquid was measured at 20° C. at a wavelength of 589.3 nm, and the results are shown in Table 1.

Embodiment 2

[0071] This embodiment provides a refractive index matching liquid and a preparation method thereof. Proceed as follows:

[0072] 1) Weigh raw materials with reference to the following mass percentages:

[0073] 49.5% Dimethyl Phthalate, 26.9% Butyl Benzoate and 23.1% Ethyl Anisate, 0.5% Tween-60.

[0074] 2) Add the above raw materials into the mixing tank in sequence, stir and mix evenly, filter and use ultrasonic to remove air bubbles and pack to obtain the refractive index matching liquid.

[0075] 3) The refractive index value of the above-mentioned refractive index matching liquid was measured at 20° C. at a wavelength of 589.3 nm, and the results are shown in Table 1.

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
refractive indexaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of optical testing, and in particular, relates to a refractive index matching liquid and an optical detection method of glass. The refractive index matching liquid comprises a lipid compound; the lipid compound is selected from at least two of butyl acetate, ethyl benzoate, butyl benzoate, benzyl benzoate, triethyl citrate, tributyl citrate, gamma-valerolactone, dimethyl phthalate, diethyl phthalate, isopropyl myristate, ethyl salicylate, benzyl acetate, ethyl benzoylacetate, methyl salicylate, methyl benzoylacetate, ethyl cinnamate, methyl benzoate, ethyl anisate, butyl anisate, isobutyl anisate, propyl anisate and ethyl p-toluate; and the refractive index of the refractive index matching liquid at the temperature of 20 DEG C is between 1.50 and 1.57. The refractive index matching liquid can keep a stable state in a specific refractive index range, is slightly influenced by temperature, and is small in smell and low in cost.

Description

technical field [0001] The invention relates to the field of optical testing, in particular to an optical testing method for refractive index matching liquid and glass. Background technique [0002] At present, in optical-related inspections, inspectors often need to add a refractive index matching liquid between two optical devices to eliminate the impact on optical inspection results caused by material changes at the junction interface. Taking the stress detection of glass as an example, when light enters the glass to be tested from the detector prism, since there is an air gap between the detector prism and the glass to be tested, the light will pass through three different media of solid-gas-solid in sequence, and Changes in optical properties such as intensity and polarization state occur at the interface. If the above optical changes cannot be eliminated, errors will occur in the test results, resulting in inaccurate test results. [0003] After the refractive index m...

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 Applications(China)
IPC IPC(8): G01M11/02G01N21/41G01L1/24
CPCG01M11/0228G01N21/41G01L1/24
Inventor 胡秋雨袁明军李治文
Owner 光华科学技术研究院(广东)有限公司
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