Real-time recording apparatus and method for colorful digital holographic image

Abstract

The invention discloses a real-time recording apparatus and method for a colorful digital holographic image, belongs to the field of the colorful digital holographic image technology, and aims to solve the problem that the recording of the red light, green light and blue light digital holographic image cannot be finished by an optical path system synchronously used in the prior art; the numerical value reconstruction algorithm for the colorful digital holographic image in the prior art is relatively troublesome and complex, so that efficient and rapid numerical value reconstruction of the colorful digital holographic image is affected, and the real-time recording and reproduction of dynamic colorful objects cannot be realized. The real-time recording apparatus provided by the invention comprises a red laser 1, a green laser 2, a blue laser 3, beam splitter prisms BS1-BS8, reflectors M1-M8, adjustable attenuator filter 1-filter 6, right angle prisms 1-4, achromatic microobjective MO1-MO4, pinholes PH1-PH4, achromatic lenses L1-L4, a computer, a CCD camera and a to-be-tested object which are arranged in sequence based on the optical path. The real-time recording apparatus and method are used for obtaining the colorful digital holographic image.

Description

technical field [0001] A real-time recording device and method for color digital holograms, used for obtaining color digital holograms, belongs to the technical field of color digital holograms. Background technique [0002] Using digital holography technology, the intensity and phase information of the object to be measured can be quantitatively measured quickly and efficiently. The implementation process is to record the digital hologram of the object to be measured, and then perform numerical reconstruction on the digital hologram according to the optical diffraction integral, and then obtain the intensity and phase information of the object to be measured. Digital holography technology has important applications in the fields of optical measurement and display. In the field of display, since digital holography usually uses a single-wavelength laser and a high-resolution black-and-white CCD to record digital holograms, generally only the monochromatic digital holograms o...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a real-time recording device and method for color digital holograms aiming at the above disadvantages, solving the problem that the optical path system used in the prior art cannot simultaneously complete the recording of red light, green light and blue light digital holograms; The numerical reconstruction algorithm of the color digital hologram in the technology is relatively cumbersome and complicated, which is not conducive to the efficient and fast numerical reconstruction of the color digital hologram, and cannot satisfy the problem of real-time holographic recording and reproduction of dynamic color objects

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