Apparatus for collimating optical path and detecting relative spectral transmittance and detection method thereof

Abstract

The invention discloses an apparatus for collimating optical paths and detecting relative spectral transmittance and a detection method thereof. The apparatus comprises a lighting device and a photoelectric detection system, wherein the lighting device emits light which passes through the photoelectric detection system for detection and comprises a light beam collimator, a heat radiation light source, a thin lens fiber coupler, a single-mode fiber and a diaphragm. The heat radiation light source gathers parallel light on the single-mode fiber through the thin lens fiber coupler, light emitted by the single-mode fiber is sent to the light beam collimator, and the light emitted by the light beam collimator irradiates on the photoelectric detection system after passing through the diaphragm. The apparatus is simple in structure, and reliable in performance, and can be used for collimating optical paths and conducting spectral response tests on optical systems. The apparatus also can be used for spectral characteristic test on single optical device. When the apparatus is employed in a test, the test steps are less, the method is simple and reliable, the relative spectral transmittance curve of an optical system to be tested can be easily obtained.

Description

technical field [0001] The invention relates to a laboratory optical system used for optical path collimation and relative spectral transmittance detection device and detection method thereof, belonging to the field of optical engineering. Background technique [0002] In many fields of optical experimental research and applications, users often purchase optical components, assemble optical test systems or use two or more sets of optical test systems according to actual needs. For example, assemble various types of optical microscopes by yourself, or combine a microscope with a Raman spectrometer to form a micro-Raman spectroscopy system, or combine a micro-Raman system with an atomic force microscope to form a near-field optical test system. When assembling or using an optical test system, the optical path collimation and spectral transmittance of the optical system are two important characteristics that people often pay attention to. When people adjust the collimation of ...

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Problems solved by technology

However, this solution is generally only used to calibrate the wavelength of the spectrometer, and cannot calibrate the sensitivity of the optical system

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