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Variable-angle glass reflecting measurement device and method

A reflection measurement and angle-variable technology, applied in the direction of testing optical performance, etc., can solve problems such as inability to do absolute measurement, inability to perform multi-angle reflection spectrum detection on glass, and limited reflectance.

Inactive Publication Date: 2012-07-11
BEIJING AOPTEK SCI
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Problems solved by technology

It can only measure the reflective optical properties of the upper surface of the sample, and cannot measure the reflectance of a sample with a certain thickness, nor can it do absolute measurement.
[0010] Most current reflectance measurement methods have the following deficiencies: a) The reflectance of the measured sample must be compared with the known reflectance of the reflectance standard plate to determine, which requires strict calibration and periodic verification of the reflectance standard plate
b) The reflectance can only be measured at a fixed incident angle, and the multi-angle reflection spectrum cannot be tested for glass
c) It is limited to measuring the reflectance of a single surface on the upper surface, and cannot directly measure the total reflectance of glass, especially thick glass and multiple pieces of glass

Method used

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  • Variable-angle glass reflecting measurement device and method

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Embodiment Construction

[0032] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0033] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described ...

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Abstract

The invention relates to a variable-angle glass reflecting measurement device and a method. The method comprises the steps of measuring incident light flux to perform absolute calibration when no sample exists, changing the angle of the incident light illuminating a sample when the sample exists, collecting the total reflection light flux from an upper reflecting surface and a lower reflecting surface of the sample according to the corresponding angle variation of reflection light, and calculating the ratio of the total reflection light flux to the incident light flux, so as to obtain the total reflectance of the sample. According to the invention, the thicknesses and the optical characteristics of thin layers can be effectively controlled, angle color change data required by glass film layers and similar industries can be provided, and a basis for the quality control of the glass film layers can also be provided.

Description

technical field [0001] The invention relates to a variable-angle glass reflection measuring device and method. Background technique [0002] As people's awareness of the beauty of buildings and energy saving continues to increase, coated glass, as an emerging architectural glass material, is deeply loved by architectural designers and users for its transparent, bright and energy-saving features. However, in the construction of large-area glass curtain walls, the problem of uneven color often occurs, that is, chromatic aberration, which directly affects the appearance quality and aesthetic effect of glass curtain walls. Therefore, the chromatic aberration of coated glass has attracted more and more attention. [0003] Coated glass is coated with one or more layers of thin films on the surface of glass to change the optical properties of the glass to meet certain specific requirements. Its effect on reflected light is more complicated than that of ordinary glass. Light has co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
Inventor 詹今黄达泉李春业
Owner BEIJING AOPTEK SCI
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