Abstract:
This invention relates to a real-time infrared chemical imaging spectroscopic apparatus, including a light source for generating infrared radiation. A test sample absorbs a narrow-bandwidth infrared radiation as a result of a monochromator dispersing the infrared radiation and emits thermal radiation. IR camera collects the thermal radiation to form an image. As such, the present invention inspects the test sample in real time without a huge amount of complicated computation. Thus, the efficiency of inspection is increased and the optical design of the apparatus is more compact.
Abstract:
A microscopic imaging apparatus with flat-top distribution of light is disclosed, which includes an incident light source, a diffractive optical element, a beam-splitter, a tunable filter and an image sensor. The diffractive optical element receives an incident light provided by the incident light source and generates a uniform incident light. The uniform incident light illuminates a sample so that an optical signal is emitted from the sample. The optical signal passes through the beam-splitter and the filter unit to reach the image sensor for obtaining the detected image of the sample.
Abstract:
An approaching apparatus based on spectral shift is disclosed, which includes a broadband light source, an optical-guide unit, and an optical receiving unit. The broadband light source emits a broadband light with the first central wavelength to the optical-guide unit and illuminates a sample via a probe within the optical-guide unit. A generated broadband light of the second central wavelength goes back the optical-guide unit via the original optical path to reach the optical receiving unit. Then, the receiving unit calculates the distance between the probe and the sample based on the characteristic curve of the approaching distance vs. the deviation of the first central wavelength. The deviation is used for feedback control so that the displacement driver moves the probe to adjust the distance between the probe and the sample.