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

A technology of digital holography and real-time recording, applied in instruments and other directions, can solve problems such as high-efficiency and fast numerical reconstruction of unfavorable color digital holographic images, inability to meet real-time holographic recording and reproduction of dynamic color objects, and complicated and complex numerical reconstruction algorithms.

Inactive Publication Date: 2016-06-29
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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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 nume...

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

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Embodiment Construction

[0068] The present invention will be further described below in conjunction with drawings and embodiments.

[0069] A real-time recording device for color digital holograms, including red, green, and blue lasers Laser1-Laser3 placed in sequence along the optical path, and a beam-splitting prism BS 1 ~BS 8 , mirror M 1 ~ M 8 , adjustable attenuator Filter1~Filter6, rectangular prism Prism1~Prism4, achromatic microscope objective MO 1 ~MO 4 , pinhole PH 1 ~PH 4 , achromatic lens L 1 ~ L 4 , Computer, CCD camera CCD and the object to be measured; Laser1 can be set to correspond to the red laser, Laser2 to the green laser, Laser3 to the blue laser, and the wavelength of each monochromatic laser used can be: 632.8nm He-Ne laser (red light), 532nm semiconductor solid-state laser (green light) and 473nm semiconductor solid-state laser (blue light), and red, green and blue monochromatic lasers of other wavelengths can also be used;

[0070] Among the red, green and blue laser...

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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...

Claims

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Application Information

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IPC IPC(8): G03H1/00G03H1/04
CPCG03H1/0005G03H1/0443G03H2001/0038
Inventor 姜宏振刘勇李东刘旭郑芳兰郑垠波杨一陈竹张霖石振东原泉马骅马玉荣冯晓璇马可任寰李文洪于德强巴荣声周信达袁静丁磊陈波杨晓瑜
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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