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Optimization of optical tweezers for multimodal holographic microscope
Vaverka, Jan ; Antoš, Martin (referee) ; Dostál, Zbyněk (advisor)
This bachelor's thesis has described the principle of operation of interference microscopes with closer analysis of multimodal holograpfic microscope (MHM), which has been constructed at the Institut of Physical Engeneering (IPE) of Brno University of Technology. It has also analysed principles of optical trapping and has closely descirebed force effects on the trapped object with characteristic lenght bigger than wavelenght of trapping beam. It has designed optimization of existing optical tweezers module so that the module is connectable to the prototype of MHM, located at IPE. Simulation and optimization of the optical assembly of module have been performed, the mechanical design of module with the drawings has been designed. The module has been entered into production.
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System for measuring of pintrack dimensions
Vodička, Petr ; Dostál, Zbyněk (referee) ; Antoš, Martin (advisor)
In this bachelor thesis is processed a summary of contactless sensors for length measurement, that are commonly used in industry, it's physical principals and are described systems for measure dimensions of a steel construction. There is description of a steel carrier and classified ways the carrier can be deformed. A measuring gate for evaluation of status of steel carrier is designed and proper sensors are chosen and teste. Docomentation for measuring gate is created.
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Design and optimization of varifocal lens
Vilém, Jan ; Vacula, Daniel (referee) ; Antoš, Martin (advisor)
The thesis deals with the design and optimization of varifocal lens for projection illuminating purposes, its mechanical design and manufacturing drawings. It was proceed in the cooperation with Robe Lighting s.r.o., which defined requirement for a new projective objective lens. Lighting fixtures development is a very specific industry with a number of unusual conditions for design and methods of using of the optical systems. In this paper conditions for imaging quality will be defined and a new design of the lens with corrected distortion will be created based on the definition of the conditions.
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Design of indoor lighting in a trend of Human Centric Lighting
Ruml, Filip ; Baxant, Petr (referee) ; Antoš, Martin (advisor)
The main tasks of the thesis lie in summary of present state in Human Centric Lighting field, in the optical design of luminaire and in practical verification of the proposal. The design is developed in software LightTools and for the verification of functionality the software Dialux EVO is employed. The luminaire is designed primarily with respect to the influence of light on the man and the physiological, psychological and behavioural responses in humans. The thesis is created in cooperation with the company Robe Lighting s.r.o. The proposal of the luminaire corresponds to the current state of knowledge in the area of light influence on humans. The designed luminaire in the trend HCL is distinguished by the high quality of emitted light but also with higher costs of the operation.
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Verification of method of reconstruction of spatial distribution of refractive index by a holographic microscope
Schneider, Martin ; Antoš, Martin (referee) ; Kolman, Pavel (advisor)
Abstract The subject of the bachelor thesis is an application of transmission digital holographic microscope for verification of reconstruction of spatial distribution of the refractive index. Using eccentric pinhole as a light source is the object illuminated by a plane wave inclined to the optical axis. Different rotations of a pinhole gives us projections of the object. We have tried to reconstruct the refractive index using tomographic methods. This thesis contains design of a rotating pinhole aperture. The illumination and mounting was solved and a functionality was also proved. Experimental part deals with the reconstruction of refractive index of a tested object.
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Design of a spectrometer accessory for absolute reflectance measurements
Šustek, Štěpán ; Antoš, Martin (referee) ; Klus, Jakub (advisor)
This paper describes the design and the design solution of an extension for measurement of an absolute reflectance using Perkin Elmer Lambda 45. This paper is divided into three parts. The first part deals with the basic theory of optics, knowledge of which is necessary for the proper function of the optical components used in the design. The second part provides an overview of configurations used in the practice to measure both the relative and the absolute reflectance. The last section includes the final design solution of the extension.
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Influence of imaging sensors properties on the quality of the quantitative phase image reconstruction
Šulc, Václav ; Antoš, Martin (referee) ; Dostál, Zbyněk (advisor)
This bachelor thesis is focused on imaging sensors noise characteristics and their impact on quantitative phase imaging. From available sensors the darkframes were acquired and analyzed. Computed data of noise standard deviation were used to simulate synthetic holograms for reconstruction of quantitative phase images. A camera Basler acA2040-180km was found to be a most suitable device for holography. The design, fabrication and testing of an effective cooling system for such a device proved to have even better noise characteristics.
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Modification of LIBS system sample view module
Hrabal, Zdeněk ; Antoš, Martin (referee) ; Brada, Michal (advisor)
This Bachelor’s thesis deals with modification of a sample view module in a LIBS (Laser-induced breakdown spectroscopy) interaction chamber. The main goal of the thesis is innovation of current design. Several conceptual designs which eliminate main drawback of the current sample view module are developed. Final design is based on the analysis of the conceptual designs and research which were described in the Bachelor’s thesis. All components were manufactured and functional prototype was tested. Design and drawings of the parts were created using Autodesk Inventor 2015 CAD application.
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