Flat plate beam-shift super-diffraction resolution microscope
A microscope and resolution technology, applied in the field of optical imaging, can solve problems such as small u2
Inactive Publication Date: 2011-07-13
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
Obviously, the limitation of conventional microscope resolution is that u2 is too small
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[0047] figure 2 Among them, the focal length of the collimating objective lens is f1=16mm, u1=0.15, then a=2f1×u1=4.8mm.
[0048] The refractive index of the plate is n=1.5, and the thickness hx=hy=10mm.
[0049] According to formula (3), the solution
[0050] Plate inclination angle βx=βy≈22°
[0051] Focus objective lens focal length f1 = 110mm
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The invention discloses a flat plate beam-shift super-diffraction resolution microscope comprising a collimating lens, a transversal beam-shift flat plate, a longitudinal beam-shift flat plate, a focusing object lens and an ocular lens sequentially arranged in the same light path. Light emitted by an object point becomes parallel light through the collimating lens, multiple beams of transmission light are generated by the parallel light through the multiple reflection and transmission of the transversal beam-shift flat plate, a synthetic beam is transversally expanded, passes through the longitudinal beam-shift flat plate and is longitudinally expanded, and the expanded parallel light transmits through the focusing objective lens to form a smaller diffraction spot so as to break through the diffraction resolution restriction of a common microscope.
Description
technical field [0001] The invention belongs to the technical field of optical imaging, and relates to a microscope device, in particular to a flat beam shifting super-diffraction resolution microscope. Due to the multiple reflections and transmissions inside the optical glass plate, the beam emitted from the objective lens moves in parallel multiple times, each time a beam of transmitted light is generated, and together with the directly transmitted beam constitutes an outgoing beam that is several times the width of the incident beam. After the focusing mirror, a smaller focused spot can be formed, thereby improving the imaging resolution. The invention can be used with all transmission and reflection microscopes. Background technique [0002] Ordinary microscope is a classic optical instrument, which is composed of objective lens and eyepiece. The resolution of an ordinary microscope is determined by the numerical aperture of the objective lens, and its theoretical basi...
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Login to View More IPC IPC(8): G02B21/00G02B27/58
Inventor 赵斌
Owner HUAZHONG UNIV OF SCI & TECH