CN104316190A - Method for measuring color, brightness and reflectance spectrum of glass at different angles - Google Patents
Method for measuring color, brightness and reflectance spectrum of glass at different angles Download PDFInfo
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- CN104316190A CN104316190A CN201410605346.4A CN201410605346A CN104316190A CN 104316190 A CN104316190 A CN 104316190A CN 201410605346 A CN201410605346 A CN 201410605346A CN 104316190 A CN104316190 A CN 104316190A
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Abstract
The invention discloses a method for measuring the color, the brightness and the reflectance spectrum of glass at different angles. The method comprises the steps that light which is sent by a broad spectrum light source and includes a broad spectrum is led into a first lens through an optical system and is corrected to be parallel light, the light is irradiated to the surface of a glass sample at the inclination angle larger than 0 degree and smaller than 90 degrees, two reflection rays are formed after the light is reflected by the upper surface and the lower surface of the glass sample, the two reflection rays are focused through a second lens, a light diffusion device is arranged at the focus point of the second lens, the two focused reflection rays are mixed and diffused through the light diffusion device and then are connected and led into a spectrum analysis device through another optical system, and the spectrum analysis device is connected with a computer through a data line. The method for measuring the color, the brightness and the reflectance spectrum of the glass at different angles has the advantages that the structure is simple, the measuring speed is high, and measuring is accurate. The device is high in operation reliability and meanwhile is high in signal collecting speed, thereby also being suitable for on-line measuring.
Description
Technical field
The present invention relates to a kind of glass measurement method, particularly a kind of method measuring glass different angles color, brightness and reflectance spectrum.
Background technology
Glass colour, reflecting brightness and wide spectral reflectance test are all generally use vertical glass face to test, utilize information such as measuring color to monitor coating process, along with the increase of rete number, existing glass measurement method cannot meet the requirement to above-mentioned measurement.When coating layers reaches more than 10 layers or 10 layers, even if the color that records of vertical glass face sometimes, brightness can meet technique or product requirement, but in other angles, possible glass can present different colors.Need to utilize in different angles sight glass color, brightness is to monitor to coating process the stability increasing coating process.Because glass has certain thickness usually, so when incident light oblique incidence, the reflected light of glass upper and lower surface can be separated, thus affects measuring accuracy, there is no correlation technique head it off at present.
Summary of the invention
In order to overcome above-mentioned defect, it is simple that this patent provides a kind of structure, measuring speed is fast, measures the method measuring glass different angles color, brightness and reflectance spectrum accurately, and can solve the inconsistent problem of glass upper and lower surface folded light beam that thickness of glass causes.
This patent in order to the technical scheme solving its technical matters and adopt is: a kind of method measuring glass different angles color, brightness and reflectance spectrum, comprises the following steps:
1) to import the first lens correction by optical system be directional light to the light comprising wide spectral launched by a broad spectrum light source, and to be greater than 0 degree and the pitch angle being less than 90 degree exposes to glass sample surface,
2) after the reflection of glass sample upper and lower surface, two bundle reflection rays are formed by the second lens focus, the light disperser of two-beam mixing diffusion is located at the focal spot of the second lens, two after described focusing is restrainted reflection rays and connect importing spectral analysis device by another optical system after light disperser mixing diffusion.
3) described spectral analysis device is connected with computing machine by data line, and imports spectroscopic data into Computer Analysis and obtain result.
As a further improvement on the present invention, the optical fiber in described optical system, also can be had optical element or the system replacement of light conduction function by other.
As a further improvement on the present invention, the diameter of described second lens is greater than after glass sample surface reflection, form two bundle reflection rays distance and spot diameter sum.
As a further improvement on the present invention, can add one or more light dispersers with enhanced diffustion effect after light disperser, light disperser can be light diffusing sheet, such as frosted glass, or other have optical element or the system of light scattering effect.
As a further improvement on the present invention, spectral analysis device can be spectrophotometer etc. other have instrument or the system of spectral analysis function.
The invention has the beneficial effects as follows: the present invention is radiated at glass surface after Light source correction is become directional light, two bundle reflected light are formed after glass primary event and the secondary reflection after being refracted into glass, two bundle reflected light are through focusing on and importing spectral analysis device after mixing diffusion, spectral analysis device passes to the reflected signal of each wave band inside calculation element by data line, reflected signal can be calculated the wide spectral reflectance curve of glass in all angles by calculation element, brightness, color, this glass colour, it is simple that brightness and reflectivity wide spectral curved measurement method have structure, measuring speed is fast, measure feature accurately, the reliability of this plant running is very high, synchronous signal picking rate is also very high, so also may be used for on-line measurement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Indicate in figure: 1-broad spectrum light source; 2-first lens; 3-second lens; 4-spectral analysis device; 5-computing machine; 6-light disperser; 7-glass sample; 8-optical system.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
Fig. 1 shows the present invention's one and measures glass different angles color, the embodiment of the method for brightness and reflectance spectrum, the optical system that the light comprising wide spectral launched by one broad spectrum light source 1 has light conduction function by optical fiber or other imports the first lens 2, and be corrected to directional light, and to be greater than 0 degree and the pitch angle being less than 90 degree exposes to glass sample 7 surface, after the reflection of glass sample 7 upper and lower surface, form two bundle reflection rays focused on by the second lens 3, focus to same luminous point or two luminous points closely, the diameter of described second lens 3 is greater than after glass sample 7 surface reflection, form two bundle reflection rays distance and spot diameter sum, first light disperser 6 must be placed on the near focal point of the second lens 3, the focal spot of two bundle reflected light is conveniently made to be diffused in close position, if needed, one or more smooth disperser 6 can be increased, light disperser 6 can be light diffusing sheet, such as frosted glass, or other have optical element or the system of light scattering effect, light is fully spread, two bundle reflection rays after described focusing mix after diffusion through light disperser 6, the optical system by optical fiber or other with light conduction function connects importing spectral analysis device 4, spectral analysis device 4 passes to the light reflected signal of each wave band inside computing machine 5 by data line, computing machine 5 can calculate the brightness of glass in all angles by this signal, other information that color or wide spectral reflectance curve etc. are relevant.
The method is mainly used in the color on glass sample 7 surface, brightness and measuring reflectance, if need multiple angle measurement, can superpose multiple angle, test position a position or multiple position.
Claims (4)
1. measure a method for glass different angles color, brightness and reflectance spectrum, it is characterized in that, comprise the following steps:
1) light comprising wide spectral launched by a broad spectrum light source (1) imports the first lens (2) by optical system (8) and is corrected to directional light, and to be greater than 0 degree and the pitch angle being less than 90 degree exposes to glass sample (7) surface
2) after the reflection of glass sample (7) upper and lower surface, form two bundle reflection rays to be focused on by the second lens (3), the light disperser (6) of two-beam mixing diffusion is located at the focal spot of the second lens (3), two bundle reflection rays after described focusing import spectral analysis device (4) by another optical system (8) connection after light disperser (6) mixing diffusion
3) described spectral analysis device (4) is connected with computing machine (5) by data line, and spectroscopic data is imported into computing machine (5) analyze obtain result.
2. the method for measurement glass different angles color according to claim 1, brightness and reflectance spectrum, is characterized in that: described optical system (8) is optical fiber.
3. the method for measurement glass different angles color according to claim 1, brightness and reflectance spectrum, is characterized in that: the diameter of described second lens (3) is greater than after glass sample (7) surface reflection, form two bundle reflection rays distance and spot diameter sum.
4. the method for measurement glass different angles color according to claim 1, brightness and reflectance spectrum, it is characterized in that: after described smooth disperser (6), be also provided with one or more smooth disperser (6), described light disperser (6) for frosted glass or other have the optical system of light scattering effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605346.4A CN104316190A (en) | 2014-11-03 | 2014-11-03 | Method for measuring color, brightness and reflectance spectrum of glass at different angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605346.4A CN104316190A (en) | 2014-11-03 | 2014-11-03 | Method for measuring color, brightness and reflectance spectrum of glass at different angles |
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| CN104316190A true CN104316190A (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410605346.4A Pending CN104316190A (en) | 2014-11-03 | 2014-11-03 | Method for measuring color, brightness and reflectance spectrum of glass at different angles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908391A (en) * | 2017-02-10 | 2017-06-30 | 广东欧珀移动通信有限公司 | Terminal cover plate glass colour recognition methods and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10221170A (en) * | 1997-02-10 | 1998-08-21 | Asahi Glass Co Ltd | Method and equipment for film surface detection of coating glass |
| US6683695B1 (en) * | 1999-07-21 | 2004-01-27 | Electronic Design To Market, Inc. | Method and apparatus for detecting properties of reflective transparent surface coatings on a sheet of transparent material |
| CN101479593A (en) * | 2006-05-05 | 2009-07-08 | 旭硝子北美平板玻璃公司 | Apparatus and method for angular colorimetry |
| WO2011007047A1 (en) * | 2009-07-16 | 2011-01-20 | Oy Sparklike Ab | Method, apparatus and arrangement for detecting properties of a reflective transparent object |
| CN203299110U (en) * | 2013-06-07 | 2013-11-20 | 昆山胜泽光电科技有限公司 | Device for measuring spectra with different angles, colors, brightness degrees and reflectance rates of glass |
-
2014
- 2014-11-03 CN CN201410605346.4A patent/CN104316190A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10221170A (en) * | 1997-02-10 | 1998-08-21 | Asahi Glass Co Ltd | Method and equipment for film surface detection of coating glass |
| US6683695B1 (en) * | 1999-07-21 | 2004-01-27 | Electronic Design To Market, Inc. | Method and apparatus for detecting properties of reflective transparent surface coatings on a sheet of transparent material |
| CN101479593A (en) * | 2006-05-05 | 2009-07-08 | 旭硝子北美平板玻璃公司 | Apparatus and method for angular colorimetry |
| WO2011007047A1 (en) * | 2009-07-16 | 2011-01-20 | Oy Sparklike Ab | Method, apparatus and arrangement for detecting properties of a reflective transparent object |
| CN203299110U (en) * | 2013-06-07 | 2013-11-20 | 昆山胜泽光电科技有限公司 | Device for measuring spectra with different angles, colors, brightness degrees and reflectance rates of glass |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908391A (en) * | 2017-02-10 | 2017-06-30 | 广东欧珀移动通信有限公司 | Terminal cover plate glass colour recognition methods and device |
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Application publication date: 20150128 |