Statistical characteristics of coherent radiation scattered by a rotating surface in the image plane of an optical system

1993 ◽  
Author(s):  
Leonid M. Veselov ◽  
Ivan A. Popov
Keyword(s):  
Optical System ◽  
Image Plane ◽  
Coherent Radiation ◽  
Statistical Characteristics ◽  
Rotating Surface

Application of Dynamic Optical Theory in Zoom System

2007 ◽  
Vol 364-366 ◽  
pp. 539-543
Author(s):  
Yuan Hu ◽  
Yue Gang Fu ◽  
Zhi Ying Liu ◽  
Tian Yuan Gao ◽  
Lei Zhang ◽  
...  
Keyword(s):  
System Design ◽  
Optical System ◽  
Image Plane ◽  
Image Motion ◽  
Object Image ◽  
Motion Group ◽  
Imaging Quality ◽  
Optical Theory

Dynamic optical is a theory which we can deduce the object-image conjugated rations of optical system by researching motion group in optical system. It can unify various formula and methods of optical system which have motion group. Zoom system is a typical dynamic optical system. This paper will discuss how to apply the dynamic optical theory to zoom system design. With dynamic optical theory, we can derive the image motion compensating formula and the trace curve of the image motion compensating group. The cam can be fabricated according to compensating curve, which can ensure the stabilization of image plane and keep imaging quality. Moreover, a example of 30× zoom system is presented, which proves that the dynamic optical theory has some practicability for zoom system design.

Non-Gaussian intensity fluctuations in the image plane of an optical system

1997 ◽  
Author(s):  
Ivan A. Popov ◽  
Nikolay V. Sidorovsky ◽  
Leonid M. Veselov
Keyword(s):  
Optical System ◽  
Image Plane ◽  
Intensity Fluctuations ◽  
Non Gaussian

Solid-state optical scanning system for remote measurements in biomechanical systems

1984 ◽  
Vol 247 (5) ◽  
pp. C488-C494 ◽  
Author(s):  
R. A. Meiss
Keyword(s):  
Optical System ◽  
Integrated Circuit ◽  
Image Plane ◽  
Scanning System ◽  
Storage Oscilloscope ◽  
Dimensional Changes ◽  
Amplitude Profile ◽  
Remote Measurements ◽  
The Face ◽  
The Individual

A remote optical sensing system, employing a self-scanning photodiode array, is described, and its operation is demonstrated for measurements of rapid dimensional changes in contracting smooth muscle preparations. The single-line sensor array, a commercially available charge-coupled device integrated circuit, with 256 elements at 25-microns intervals, is mounted in the image plane of an optical system focused on a backlit test object. The amplitude profile of each scan is proportional to the illumination reaching the individual sensory elements. Auxilliary circuitry generates a raster of successive scan lines on the face of a storage oscilloscope. Spatial and temporal information about the target and its motions may be derived from the displayed raster scan. Performance is illustrated using an artificial target and a muscle fiber bearing opaque markers. Successive lines may be scanned in as briefly as 5 ms (at 10-ms intervals) or in as long as 50 ms (at 1-s intervals). Each raster may contain up to 256 lines, although not all of the lines need to be displayed. The spatial resolution is determined by the photodiode spacing in the sensory array and by the magnitude of the optical system in use; as described here, the resolution is on the order of 0.2 mm for a 20-mm scan length.

Measurement on Rotating Mechanical Component by Thermoelasticity

2006 ◽  
Vol 3-4 ◽  
pp. 337-342 ◽  
Author(s):  
G. Brustenga ◽  
R. Marsili ◽  
Michele Moretti ◽  
J. Pirisinu ◽  
Gian Luca Rossi
Keyword(s):  
Measurement Technique ◽  
Optical System ◽  
Measurement System ◽  
Thermoelastic Stress ◽  
Test Case ◽  
Thermoelastic Stress Analysis ◽  
Mechanical Component ◽  
First Results ◽  
Rotating Surface ◽  
Dove Prism

In this paper a new measurement technique to perform thermoelastic stress analysis on rotating mechanical component is proposed. The idea is to use a particular realization of the Dove prism optical system, optimized to work width infrared radiation, able to give a fixed output image of a rotating surface on where a normal thermoelastic measurement system can be applied. The realization of a first prototype of this optical system is described. First results on a test case are illustrated.

CALCULATION OF MODULATION TRANSFER FUNCTION OF AN OPTICAL SYSTEM BY USING SKEW RAY TRACING

2009 ◽  
Vol 33 (3) ◽  
pp. 429-442 ◽  
Author(s):  
Kuo-Hwa Tseng ◽  
Chieh Kung ◽  
Te-Tan Liao ◽  
Hao-Peng Chang
Keyword(s):  
Transfer Function ◽  
Ray Tracing ◽  
Optical System ◽  
Modulation Transfer Function ◽  
Image Plane ◽  
Modulation Transfer ◽  
Light Rays ◽  
Intermediate Image ◽  
Pass Through ◽  
And Performance

The resolution and performance of an optical system can be characterized by a quantity known as the modulation transfer function (MTF), which is a measurement of an optical system’s ability to transfer contrast from the specimen to the intermediate image plane at a specific resolution. Accordingly, this study employs skew ray tracing based on a 4 × 4 homogeneous coordinate transformation matrix and Snell’s law to develop a detailed methodology for determining the spot diagram on the image plane when light rays pass through the optical system. And the authors present calculations of the MTF of an optical system by using the spot diagram on the image plane. The numerical results of the proposed methodology are demonstrated using a symmetrical optical system.

scholarly journals The optical system of the disappearing filament pyrometer

1935 ◽  
Vol 152 (875) ◽  
pp. 64-80 ◽  
Keyword(s):  
Optical System ◽  
Image Plane

The principles of the disappearing filament pyrometer are too well known to need any description, but, in order to avoid confusion, it is advisable to define the terms which are used throughout this paper. The "first objective" forms an image of the "source" in the "filament plane," an image of the filament and source is then formed by the "second objective" in the "second image plane." This image is examined by an "eyepiece system." The combination of the second objective and the eyepiece system constitutes the "microscope" examining the filament and the image of the source.

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