A Digital Holographic 3D Microscopic Observation Device by Recording and Synthesizing the Polarization State of Rotated Linearly Polarized Light
A digital holography and observation device technology, which is applied to measurement devices, optical devices, instruments, etc., can solve the problems of blurred reproduced images and indistinguishable details of reproduced images, and achieves convenient operation, compact structure and high resolution. Effect
Inactive Publication Date: 2011-12-21
BEIHANG UNIV
View PDF6 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The details of the reconstructed image covered by speckle are difficult to distinguish, making the reconstructed image blurred
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0026] see figure 1 , Figure 1A As shown, the present invention is a digital holographic three-dimensional microscopic observation device that records and synthesizes the polarization state of linearly polarized light. The device includes a light source 1, a spectroscopic unit 2, an A spatial filter 3A, a B spatial filter 3C, A plano-convex lens 3B, B plano-convex lens 3D, A reflector 4, B reflector 7, depolarization beam splitter 5 and CMOS camera 6. The light splitting unit 2 receives the laser light emitted by the light source 1, and outputs two beams of linearly polarized light, one of which is A linearly polarized light 21, and the other is B linearly polarized light 22; A linearly polarized light 21 is sequentially filtered by A space The device 3A, the A plano-convex lens 3B, and the A reflector 4 are incident on the depolarizing beamsplitter prism ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a digital holographic three-dimensional microscopic observation device for recording and synthesizing the polarization state of rotating linearly polarized light. filter; one beam of linearly polarized light sequentially passes through a plano-convex lens and a reflector to become a reference light and enters a depolarizing beam splitter; After being scattered by the object to be observed, it enters the depolarizing beam splitter prism. The polarization beam-splitting prism in the beam-splitting unit is placed between the A half-wave plate and the B half-wave plate, and the C half-wave plate is placed at the reflected light position of the polarization beam-splitting prism. The device of the present invention simultaneously changes the polarization direction of the linearly polarized reference light and the linearly polarized scattered light containing the shape information of the object, and coherently superimposes the two light beams, so that it can obtain A plurality of holograms containing different information of the object; thirdly, the observation device can obtain the three-dimensional information of the object to be observed by means of non-contact and in-situ detection.
Description
technical field [0001] The present invention relates to a three-dimensional microscopic observation system, more particularly, a digital holographic three-dimensional microscopic observation device that records and synthesizes the polarization state of rotating linearly polarized light. Background technique [0002] Digital holography technology uses CCD (Charge Coupled Device, Charge Coupled Device), CMOS (Complementary Metal-Oxide Semiconductor, Metal Oxide Semiconductor) and other photoelectric imaging detection devices as recording media and records holograms in digital form, and uses computer simulation to reproduce reference The light passes through the optical diffraction process of the hologram to reconstruct the three-dimensional scattered light field digitally, so as to obtain the information of the amplitude and phase of the scattered light field. It has the advantages of very small and simple system structure; (2) The recording and reproduction process of digital...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B9/021
Inventor 潘锋肖文伊小素刘烁戎路张菁
Owner BEIHANG UNIV