Multicolor Contrast Effects by Monochromatic Astronomic Filters – Utilization in Light Microscopy and Photomicrography

Several color filters have been developed for astronomic use in order to improve image quality in visual observations and astronomic photography. Various positive effects, which can be achieved in astronomic practice, have already been described by several authors, manufacturers and distributors [2, 4, 5, 9, 10, 12]. Monochromatic narrow-band filters are widely used by astronomers. These filters are constructed as interference filters; they select small ranges within the spectrum of the visible light corresponding with characteristic radiation emitted by celestial nebula or the sun and its protuberances. This way, scattered terrestrial radiation caused by “light pollution” and non visible infrared or ultraviolet spectral components are blocked. Fundamental improvements of image quality will result from these filters when refractors or reflector telescopes are fitted with them.

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VIS-NIR LED Illumination in Backside Circuit Edit and Optical Probing Applications

ISTFA 2012: Conference Proceedings from the 38th International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2012p0505 ◽

2012 ◽

Author(s):

Shida Tan ◽

Richard H. Livengood ◽

Dane Scott ◽

Roy Hallstein ◽

Pat Pardy ◽

...

Keyword(s):

High Resolution ◽

Image Quality ◽

Optical Imaging ◽

Narrow Band ◽

Light Emitting Diode ◽

Air Gap ◽

Optical Image ◽

Proof Of Concept ◽

Light Emitting ◽

Optical Probing

Abstract High resolution optical imaging is critical in assisting backside circuit edit (CE) and optical probing navigation. In this paper, we demonstrated improved optical image quality using VIS-NIR narrow band light emitting diode (LED) illumination in various FIB and optical probing platforms. The proof of concept was demonstrated with both common non-contact air gap lenses and solid immersion lenses (SIL).

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Faculty Opinions recommendation of PROPELLER technique to improve image quality of MRI of the shoulder.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.13396977.14765098 ◽

2011 ◽

Author(s):

Maria Cova ◽

Emilio Quaia

Keyword(s):

Image Quality ◽

Improve Image Quality

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Can Anti-Scatter Grids Improve Image Quality in Breast CT

IFMBE Proceedings - World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany ◽

10.1007/978-3-642-03879-2_243 ◽

2009 ◽

pp. 868-870

Author(s):

S. J. Glick ◽

C. S. Didier

Keyword(s):

Image Quality ◽

Breast Ct ◽

Improve Image Quality

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Computer-Generated Hologram Based on Reference Light Multiplexing for Holographic Display

Applied Sciences ◽

10.3390/app11167199 ◽

2021 ◽

Vol 11 (16) ◽

pp. 7199

Author(s):

Dapu Pi ◽

Juan Liu

Keyword(s):

Image Quality ◽

Numerical Simulations ◽

Light Wave ◽

Information Capacity ◽

Improve Image Quality ◽

Multiple Images ◽

Holographic Display ◽

Light Waves ◽

Computer Generated Holograms ◽

Holographic Displays

In this article, we propose a reference light wave multiplexing scheme to increase the information capacity of computer-generated holograms. The holograms were generated by different reference light waves and superimposed together as a multiplexed hologram. A modified Gerchberg–Saxton algorithm was used to improve image quality, and different images could be reconstructed when the multiplexed hologram was illuminated by corresponding reference light waves. We performed both numerical simulations and optical experiments to demonstrate the feasibility of the proposed scheme. Numerical simulations showed that the proposed method could reconstruct multiple images successfully by a single multiplexed hologram and optical experiments are consistently good with numerical simulations. It is expected that the proposed method has great potential to be widely applied in holographic displays in the future.

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