Novel system for detecting transmittance and reflectivity of lens of optical system

An optical system and transmittance technology, which is applied in the field of new system devices for testing transmittance and reflectance, can solve problems such as unsuitable transmittance measurement, save operating time, improve signal-to-noise ratio, and improve work efficiency effect

Active Publication Date: 2014-01-22
长春市艾必利务科技有限公司
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Although these systems can improve the measurement accuracy of refl

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  • Novel system for detecting transmittance and reflectivity of lens of optical system

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Embodiment Construction

[0018] The detection system of the present invention includes an optical path structure suitable for composite light sources and spectral light sources, a rotating mirror system for simultaneous spectral modulation, a dual-channel optical path system for improving measurement accuracy, and a dual-detection system that satisfies a wide spectral range of 300nm to 1600nm The device structure, the double integrating sphere structure that measures the transmittance and reflectance at the same time, the lock-in amplifier that can improve the signal-to-noise ratio to detect weak signals, and the control and data acquisition system based on virtual instrument technology.

[0019] The working principle of the present invention is as figure 1 As shown, the light emitted by the white light source enters the monochromator 1, and the outgoing monochromatic spectrum forms parallel light through the spherical reflector, and is modulated by the rotating reflector to divide the continuous light...

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Abstract

The invention discloses a novel system for detecting transmittance and reflectivity of a lens of an optical system and belongs to the field of test devices of optical systems. The system comprises a monochromator and the like, wherein a white-light source emits white light which enters the monochromator; a collecting mirror couples light beams modulated through a rotating reflecting mirror and then guides the coupled light beams into optical fibers; the optical fibers are connected with the collecting mirror; detectors are connected with a lock-in amplifier through data lines; integrating spheres are connected with the optical fibers; an electric motor is connected with the rotating reflecting mirror; the lock-in amplifier is connected with a computer through a data line; and a moving type reflecting mirror is located outside the monochromator, receives monochromatic spectrums emitted by the monochromator and reflects the monochromatic spectrums to a spherical reflecting mirror. When the system is used for measuring the transmittance of tested objects, the dual integrating spheres are adopted, so that the reflectivity can be measured simultaneously. Besides, a test sample chamber is placed outside the integrating spheres, and the tested objects are placed inside the integrating spheres.

Description

technical field [0001] The invention belongs to the field of optical system testing devices, in particular to a new system device for testing transmittance and reflectivity. Background technique [0002] In the prior art, spectrophotometers belonging to the same category as optical system testing devices have been developed both at home and abroad, and most of the products that are produced and put into the market on a large scale are imported from abroad. In contrast, domestic brands do not have enough strength to compete with imported products. To measure the transmittance and reflectance of thin films or optical components, commercial spectrophotometers are mainly used at present, such as Hitachi and Shimadzu in Japan, CAYR and P-E in the United States. The spectrophotometer produced by these companies is no problem for measuring the transmittance, and its photometric accuracy is ±0.1%T-±0.3%T, but the reflectance measurement is not easy, usually with a special expensive...

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Application Information

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IPC IPC(8): G01M11/02
Inventor 石利霞王劲松
Owner 长春市艾必利务科技有限公司
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