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Summary of Contents for Newport LBP2 Series
- Page 1 LBP2 Series Laser Beam Profiler User Guide for v3.x Laser Beam Analyzer ® ® For Windows 7 and Windows 10 LBP2 User Guide Document No: 50306-001 Rev G 3/12/2020 Page 1...
- Page 2 RESULTING FROM THE PURCHASE OR USE OF ITS PRODUCTS. First printing 2013 © 2020 by Newport Corporation, Irvine, CA. All rights reserved. No part of this manual may be reproduced or copied without the prior written approval of Newport Corporation.
- Page 3 Authorization Number (RMA#). Return the product to Newport Corporation, freight prepaid, clearly marked with the RMA# and we will either repair or replace it at our discretion. Newport is not responsible for damage occurring in transit and is not obligated to accept products returned without an RMA#.
- Page 4 Pentium ® is a registered trademark of Intel Corporation. All rights to the product and any accompanying user guide(s) are reserved by Newport Corporation. Newport Corporation reserves the right to make improvements to the product described in this user guide at any time and without prior notice.
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Page 5: Table Of Contents
TABLE OF CONTENTS CHAPTER 1 Equipment Setup ....................14 LBP2 Software Installation ..................... 14 Connect the Camera ......................14 Launch LBP2 Software ....................14 Setup the Camera ......................15 Collect Data ........................15 1.5.1 CW Laser Setup ......................16 1.5.2 Pulsed Laser Setup ...................... - Page 6 2.2.2.7 Camera/Firmware Info ..........27 2.2.2.8 Video Trigger ................. 27 Beam Display Ribbon and Panel Controls ..............27 2.3.1 2D|3D Properties ..............28 2.3.2 2D Beam Display Window ..................29 2.3.3 3D Beam Display Window ..................30 2.3.4 Cursor .......... 31 Capture Ribbon and Controls ..................
- Page 7 2.5.2 Beam Width Basis ............35 2.5.2.1 Programmable Knife Edge ................35 2.5.2.2 Programmable % of Total Power/Energy ............. 35 2.5.2.3 Programmable % of Peak ................. 36 2.5.2.4 Programmable Moving Slit % of Peak ............36 2.5.3 Optical Scaling ..............36 2.5.4 Pass/Fail ....................
- Page 8 2.7.3 Beam Width Displayed Aperture ......46 Logging Ribbon ........................ 47 2.8.1 File Set ........47 2.8.2 Logging Results ....................48 2.8.3 Logging Controls ..............48 Reports Ribbon ..............49 CHAPTER 3 Displays ........................ 51 Displays ..........................51 Display Terminology ....................... 52 3.2.1 The Primary Dock Window and Dock Handles ............
- Page 9 File Access Window ..................68 4.8.1 Print Preview ................68 4.8.2 Export ....................69 CHAPTER 5 Computations...................... 71 Computational Accuracy ....................71 5.1.1 What is Ultracal? ......................71 Beam Presentation Affects Results ................72 ISO Standards Compliance .................... 72 Clip Level .......................... 73 Total Power/Energy ......................
- Page 10 Safety While LBP2 itself does not present the user with any safety hazards, this instrument however is intended for use with laser systems. Therefore, the user should protect from any hazards that the laser system may present. The greatest hazards associated with laser systems are damage to the eyes and skin due to laser radiation.
- Page 11 General Information about LBP2 Introduction to LBP2 The Newport Corporation Laser Beam Analyzer, LBP2, is a low cost, PC-based product for use in modern multi core advanced Pentium-generation personal computers running the Windows 7 or Windows 10 operating systems. Some of these features include: ...
- Page 12 Attenuation requirements vary greatly depending upon application. Newport offers optional equipment for beam attenuation. Information for the LBP2 Beam Sampler series is shown below. Consult your Newport Representative or call Newport's Sales Department for further information. Part Number...
- Page 13 How to Use This User Guide Read this user guide before setting up your LBP2 system. Become familiar with the laser beam analysis theory and acquire a basic understanding of how LBP2 operates. Insights gained through this review will facilitate achieving a correct system setup, and help with interpreting results.
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Page 14: Chapter 1 Equipment Setup
To Install the Newport Software Application: There are two ways that to install the software from the Newport provided CD. This procedure will work as described on Windows 7 operating systems. All installations must be performed with Administrator privileges. -
Page 15: Setup The Camera
If you did not have a Newport supplied and Licensed camera connected at the time of launch, plug it in now per 1.2 above and select it by clicking on the Local Detector button. -
Page 16: Cw Laser Setup
Most Newport supplied cameras are supplied with a basic set of ND filters that can attenuate lasers up to about 5 Watts. At power levels greater than 5 Watts, the user should add in additional beam attenuating devices such that the power delivered to the camera imager is low enough to prevent damage. -
Page 17: Saving The Setup
Note: Each time LBP2 is closed and the application has detected a setup change, it will prompt to save the new setup. When installed, LBP2 creates two folders in the installers user account: C:\Users\<user_name>\My Documents\LBP2 Series\Data C:\Users\<user_name>\My Documents\LBP2 Series\Setups The default location for data, log files, and reports is the ..\Data folder. -
Page 18: Chapter 2 Lbp2 Operating Controls
Ribbon panels and inside the various display windows. Title Bar Features Newport Corporation’s LBP2 employs the latest ribbon control motif introduced by Microsoft in the 2007 Office suite. This new format was created in order to provide more intuitive access to control functions as well as the ability to hide the controls for better screen utilization. -
Page 19: Default Pdf Viewer
panels have a small expansion button located in the lower right corner of the panel. Clicking on this button will reveal additional less frequently accessed controls that fall under the function title of the panel. Display Area The display window can be formatted to display any of the various child windows that can be docked within the applications main window area. -
Page 20: Adobe Reader Xi Problem
2. Find and select the line that has the .pdf extension. 3. Click on the Change program… button. 4. Select Adobe Reader and click OK. 2.1.2 Adobe Reader XI Problem It has been observed that the What’s This feature may not work reliably with the newest release of Adobe Reader XI. -
Page 21: Source Ribbon And Panel Options
2.2 Source Ribbon and Panel Options The Source panel controls which camera is assigned to run in the currently open application. After making a camera selection, this ribbon will reconfigure itself such that it provides the controls that apply to the selected camera. Tools This Panel is common to all Ribbons. -
Page 22: Data
of unique features, it will not be possible to describe every type of control that may be incorporated in LBP2. The most often encountered controls will be described in this section. 2.2.2.1 Data This control, also repeated in the Quick Access Toolbar, provides the only manual means of Starting and Pausing the data collection process of LBP2. - Page 23 cycle, prompting when to block the beam. When finished the laser beam should appear scaled in the beam display window and an accurate baseline computed and applied to the processed image. The same Ultracal settings will be enabled as in the previous Ultracal cycle. The accuracy and stability of the resulting setup will depend on how close to a good setup things were before starting the cycle.
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Page 24: Frame Format
This control is used to select the formatting of the camera data frames. Various cameras have greater or lesser features in this area. The cameras that Newport uses with LBP2 have some degree of format control. The types of controls appearing here are as follows:... -
Page 25: Trigger
These slider-edit controls permit manual adjustment of the camera settings that determine the intensity and quality of the output image. In Auto modes, these controls will automatically adjust themselves to the input beam intensity conditions. The Ultracal operation will only adjust the Black Level while the Auto Setup and Auto X operations can modify all of them. -
Page 26: Capture
The delay for these cameras can be either positive or negative depending upon the duration of the laser pulse. If the pulse is short, <100us, set a negative delay of at least -1.0ms, and a camera exposure time of at least 2ms. If the laser pulse width is long, set a delay of 0ms and the exposure time to be just slightly longer than the pulse width. -
Page 27: Camera/Firmware Info
For cameras that employ phosphors or other wavelength conversion materials the gamma of the material should be entered here to convert the nonlinear response back to a linear one. Newport’s Phosphor coated cameras (IR models) require Gamma to be set to 1.95. 2.2.2.7 Camera/Firmware Info This panel provides some basic information about the camera source. -
Page 28: 3D Properties
2.3.1 2D|3D Properties This panel controls a number of display features in the 2D and/or 3D Beam Display Windows. The top four buttons toggle on/off the following features, from left to right: Enable/Disable Zoom to Cursor If the Cursors are present, and this button is ON, zooming in the 2D display windows will be to the point of the Cursor intercepts. -
Page 29: Beam Display Window
2.3.2 2D Beam Display Window Auto-aperture (Lt Yellow), displayed Beam Width (Lt Green). The beam slice profile is drawn in White. The 2D Beam Display is shown in the Primary Dock Window indicated by the presence of the upper identifying tab. Manual Aperture is not enabled. -
Page 30: Beam Display Window
2.3.3 3D Beam Display Window The projected apertures: Manually Drawn Aperture (Lt Grey), Auto-aperture (Lt Yellow), and Beam Width (Lt Green). The beam slice profiles are traced in White and projected onto the visible Backplanes. The 3D Resolution edit control determines the amount of detail that will be rendered in the 3D beam profile. -
Page 31: Cursor
2.3.4 Cursor This panel controls the presence and operating mode of Cursors in the 2D and 3D Beam Display windows. They also dictate the location of the data plotted in the Beam Profile display windows. The Cursors can be set to operate in three modes: ... -
Page 32: Frame Comment
Frame Summing Enter the number of frames that are to be summed and the summed results will be saved in the frame buffer. In this example, frame summing is set to 1, disabling summing. Frame Summing is a technique that can be used to increase the amplitude of weak signals. To use summing successfully always have Ultracal processing enabled so that a positive baseline offset does not blow up the resulting data frame. -
Page 33: Smear Correction
Note: Adding a comment to all frames will overwrite any existing comments in the buffer. 2.4.3 Smear Correction Smearing manifests as a vertical streak in the camera image. It is caused by an excessive amount of incident power on the sensor, typically as a result of a poor match between the laser wavelength and the camera sensor’s quantum efficiency. -
Page 34: Power /Energy
Note: The Results button in the above Tools menu opens/closes the Results display window. The remainder of this section will describe only the panel controls. The following section will describe the Results display window, which contains its own set of controls. 2.5.1 Power /Energy This panel is used to manually calibrate the beam power/energy, based on a... -
Page 35: Beam Width Basis
2.5.2 Beam Width Basis The Beam Width Basis selects which method will be used to draw the Beam Width aperture in both the 2D and 3D displays. It also affects which clip level method is employed when computing a beam rotational orientation. Use the dropdown edit control and select the Beam Width Basis. -
Page 36: Programmable % Of Peak
default setting and represents the second moment setting for a TEM Gaussian beam. 2.5.2.3 Programmable % of Peak %Peak Clip% The legacy version of this result is based on a 1D analysis of the data lying along the X/Y or M/m axis running through the centroid of the beam. Enter the percent of the beam’s peak fluence that will define the clip level for computing the beam widths and diameters using this method. -
Page 37: Pass/Fail
2.5.4 Pass/Fail This panel contains the master Pass/Fail controls. Pass/Fail boundary conditions are set in the various Results display windows. The controls that enable the Pass/Fail indicators and the consequences of a Pass or a Fail event are determined here. Note: When a Pass/Fail item is enabled anywhere in the results the Enabled box will automatically be checked. - Page 38 All of the available statistical measurement types: Mean, Std Dev, Max, and Min are shown in the above example. There are four different running modes for collecting Statistics. After setting up one of these modes, make sure the Capture setup is compatible with the objectives of the statistical mode setup.
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Page 39: Results Display Controls
Reset on Start When enabled this control will cause all statistics to Reset when the Start button is clicked. This is a good way to insure all stats stay in sync. Reset Click on this momentary button to reset all statistics. Important: When collecting stats over an extended period of time, the camera baseline may drift due to changes in the camera’s temperature. -
Page 40: Group Statistics
The items checked in the group will appear in the expanded results as in the example shown above. 2.6.1 Group Statistics To enable the statistics within a group click on the Statistics dropdown option as shown below. This reveals the basic statistical choices. Check on the statistical item(s) that are to be compute and displayed. - Page 41 items that are needed to be seen and overlay them inside of another display window. If statistics values are enabled when the result is dragged, they will appear in the display window once dropped. Statistics values can also be enabled/disabled for the selected result while it is in the display window. The results item will float in the designated display window with a transparent background.
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Page 42: Results Options
2.6.3 Results Options Each results item has its own dropdown list of results options as well as the drag and drop feature. The Edit Pass/Fail and Display Options will open another dialog box that contains additional choices. Only the Display Options and Statistics for an item that has been dropped in a separate display can be controlled separate from the Results window. -
Page 43: Edit Pass/Fail
2.6.3.3 Edit Pass/Fail This is the control that enables and sets the Pass/Fail limits. Right-click a Results item, select Edit Pass/Fail, enable the pass/fail condition that is to be applied, and enter the limit value that defines the boundary conditions. In the above example, the Pass condition is that the Total power must be greater than or equal to 500 Watts. -
Page 44: Hide
2.6.3.4 Hide To remove a results item from the Results display, place your mouse on the title of the results item and click on the Hide icon that appears next to it. Observe that if the result item has been Dragged and Dropped in another window, hiding it in the results window does not remove it from that window. -
Page 45: Auto Aperture
Click on the inside of the blue box to drag and drop the location of the aperture. Click on one of the small blue boxes to resize. Drag and drop one of the corner blue circles to change the orientation. Click outside of the blue box to release and hide the handles. -
Page 46: Beam Width Displayed Aperture
The auto aperture is always drawn as an ellipse and will orient off axis when one of the off-axis results (Orientation, Ellipticity, or Eccentricity) is enabled. Important: Because both the Manual and the Auto Apertures isolate regions of the display for computational purposes, a precedent needs to be established on the order in which they are applied. -
Page 47: Logging Ribbon
Results log files will have a .csv file extension. .csv, for LBP2 ASCII comma delimited log files When installed, LBP2 creates two folders in the installers user account: C:\Users\<user_name>\Documents\LBP2 Series\Data C:\Users\<user_name>\Documents\LBP2 Series\Setup The default location for results log files is in the ..\Data folder. -
Page 48: Logging Results
Important: Use care when setting up logging scenarios. A poorly configured Logging operation left unattended may fill the hard drive. 2.8.2 Logging Results To enable log results logging operation the above button must be enabled. These files contain the results per frame with a time stamp. Each file can contain multiple record entries. -
Page 49: Reports Ribbon
Or it can be set to run continuously until Pause is clicked. Warning: If not manually stopped the log will run until the hard drive is full. Stop or Continue data capture When in a logging mode the data will stop when the logging requirements of Time or Number of Frames is met. - Page 50 The From: value is the current frame buffer display location and indicates at which frame the report process will start. To print more than one frame, enter the number to report in the # of frames to report on in this edit box. The number of frames always counts up in the frame buffer and the maximum number is the frame buffer size.
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Page 51: Chapter 3 Displays
CHAPTER 3 Displays 3.1 Displays LBP2 has the ability to create a flexible display environment to meet the user’s specific needs. In this chapter the tools that control the screen layouts will be described. Below is an example of LBP2 in a minimalist form. LBP2 User Guide Document No: 50306-001 Rev G... -
Page 52: Display Terminology
Here is an example with all the display windows operating. 3.2 Display Terminology The tools that control the screen layouts employ terminology that may be new to some Windows users. This section will provide a graphical glossary of terminology of things both old and new and hopefully useful. -
Page 53: The Primary Dock Window And Dock Handles
Object Designations File Access button Quick Launch buttons Standard Windows controls Ribbon tabs Title bar Ribbon bar and Panels Bottom Docked and Pinned window expansion tabs Status bar Results window left docked in the Main application window Primary Dock window of the 2D display, note the tab__ 3.2.1 The Primary Dock Window and Dock Handles The first time a window is opened, it will appear as a primary dock window. - Page 54 window will turn a Blue color and a set of docking handles will appear as shown below. Docking Handles All display windows can be dragged and docked to the four sides of the application window. The Blue object is the window being moved to a Dock Handle. All displayable windows can be grabbed with the mouse in their Title Bar or Tab region and dragged onto a Dock Handle.
- Page 55 Now drag the mouse cursor to touch the center-bottom docking handle and release the mouse button. The 3D display is now docked into the results window as shown below right. 3D Beam Display in Primary Dock And after relocating to the window before relocating Lower Results Dock Handle Note: Once a window has been repositioned, LBP2 will remember the placement so...
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Page 56: Dock Handle Cloning
3.2.2 Dock Handle Cloning LBP2 has three display windows that can be positioned by the user in a number of different ways. Each time a window is docked it will clone its own set of Dock Handles. This permits placing windows side by side, and over and under each other. - Page 57 Hovering or clicking on one of the pinned tabs will cause the collapsed item to pop out from the edge for viewing, as shown below. Clicking on it a second time will re-collapse the window. This feature allows for better use of available desktop space. Un-pin Click on the Un-pin tool to restore a pinned window to its former docked condition.
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Page 58: Status Bar
3.3 Status Bar The right most section of the Status bar contains the most commonly visible elements. Each is described below. Cursor Fluence This value is the measured beam fluence at the position of the Cursor. When not calibrated, the units are in raw or processed counts (cnts). - Page 59 navigate in the frame buffer either edit the frame number or run the slider to the desired location. The letter edit control allows the user to view special frame buffer locations. When indicating a B the display is following the buffer edit controls. Setting it to a U will display the current Ultracal frame.
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Page 60: Chapter 4 Files And Formats
CHAPTER 4 Files and Formats 4.1 LBP2 File Types As of this writing, LBP2 produces four different types of files. All use industry standard formats, but not all are meaningfully useable by a LBP2 user. The list of file types and their naming extensions are as follows: Extension LBP2 Application Format... - Page 61 frames in the frame buffer are to be saved by entering the Start frame and frame Count values, or by checking on the Save all Records checkbox. Check the Save as TIFF box to save images in a tiff format (see 4.5 for more information).
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Page 62: Hdf5 Format
Important: Loading a data file that is larger than the frame buffer size will cause the data to wrap and overwrite the frame buffer with the last frames loaded remaining in the buffer. LBP2 has a fixed 16 frame buffer size. 4.4 HDF5 format The HDF5 format is compatible with many third party applications, one of which is MATLAB. - Page 63 This format has several advantages. One key advantage of this format is that frame averaging or baseline subtraction will allow the lower order bits to be populated with fractional values thus allowing greater precision. In order to utilize the normalized data the native format must be known or determined.
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Page 64: Calibrated Data Conversion
x x x x x x x x unsigned 8-bit x x x x x x x x x x x x x x x unsigned 16-bit L16_8 x x x x x x x x _ _ _ _ _ _ _ _ L16_10 x x x x x x x x x x _ _ _ _ _ _ L16_12... -
Page 65: Exporting Tiff Images For Use With Hdf5
TIFF data is stored using the gray32bppFloat pixel format. This format uses a single color channel with 32 bits of precision. The pixel count is stored as a normalized floating-point value between -1 and 1. The value is calculated using the minimum and maximum values of a signed 32-bit integer, namely ±2,147,483,647. - Page 66 5. Click and expand BG_DATA. 6. Click and expand the desired frame number. 7. Right-Click on DATA, select Open. 8. Select Table->Export Data to Binary File->Native Order. LBP2 User Guide Document No: 50306-001 Rev G 3/12/2020 Page 66...
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Page 67: Log Results, .Csv, Ascii
9. Locate and open the TIFF file with desired software. 4.6 Log Results, .csv, ASCII Log results files are ASCII comma delimited text files that contain entries for Date, Time, and each enabled computed result item. These file types can be imported into MS Excel and other third party applications. -
Page 68: Report Files, .Pdf
4.7 Report Files, .pdf Reports can be configured to contain the various results and displays that are part of LBP2. A report can either be a printed document, or can be saved in an Adobe .PDF file format. 4.8 File Access Window Data and Setup files are saved and loaded via the File Access button shown above. -
Page 69: Export
4.8.2 Export To capture the 2D or 3D displayed image into an image file format, click on the Export… folder. This will open the Export dialog box shown below. Select which type of image format to create, more than one type can be created at a time. - Page 70 Note: A manual aperture will also limit the area where data gets analyzed not just the region copied into an ASCII image file. Use the manual aperture with this in mind. Hint: In order to keep the ASCII export region stable use the Manual aperture and turn off the Auto- aperture.
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Page 71: Chapter 5 Computations
CHAPTER 5 Computations 5.1 Computational Accuracy The degree of accuracy of the computed results is based primarily on two factors. The first, and most significant, is the correct nulling of the camera background signal. The second deals with optimizing the presentation of the beam display within the detector and/or within a properly sized aperture. -
Page 72: Beam Presentation Affects Results
Increasing gain also increases noise, so use it sparingly. To isolate the laser beam profile from unwanted background effects LBP2 has both Manual Aperture and an Auto Aperture capabilities. Newport recommends always using the Auto Aperture feature to insure elimination of background noise effects, which are detrimental when making second moment measurements. -
Page 73: Clip Level
prerequisites. Such a prerequisite might be the need to utilize as an input the second moment beam width. If the user were to choose a non-ISO beam width basis, such as a 50% of Peak, then it is likely that another result will not yield an ISO compliant answer. -
Page 74: Total Power/Energy
Knife Edge 10/90 Total Energy Clip Knife Edge Prog Total Energy Clip % Energy Total Energy Clip % Peak Peak Clip Moving Slit None 5.5 Total Power/Energy Total P/E The cameras used with LBP2 are not calibrated to directly provide the power/energy of a laser beam. -
Page 75: Centroid Location
5.8 Centroid Location Centroid X, Centroid Y The Centroid location is found by calculating the first moment (center of mass) of all the pixels that are selected to be analyzed. The selection process is controlled by the aperture settings. When no apertures are enabled, the centroid is computed over the entire area of the imager. -
Page 76: D4-Sigma Method
When measurements of the beam widths are performed on the cameras X and Y axes results are denoted with the letters X and Y. When a rotated elliptical beam is being measured the notions X/Y become M/m to denote the beam widths in the orthogonal Major and minor axes respectively. -
Page 77: Knife Edge Method
Where : Where: r is the distance from the centroid is the azimuth angle and where the first moments give the coordinates of the centroid dxdy ... -
Page 78: Percent Of Total Power/Energy Method
Beam Width Measurements Using Knife-Edge Techniques by Siegman, Sasnett and Johnston. 3) A user programmable method is also provided for users that wish to tune the process to best model their beam’s mode content. The ISO 16/84 method presets the Clip% values to 16% and 84% respectively, and the Multiplier to 2.0. -
Page 79: Percent Of Peak Method
The Diameter percent of total is derived by taking the area of all pixels above the clip level, and computing the diameter of a circle that contains that amount of area. The default clip level is 86.5% which will yield an accurate second moment beam width for a TEM beam. -
Page 80: Encircled Power Methods
adjusted by the orientation angle. The default clip level is 13.5% which will yield an accurate second moment beam width for a TEM beam. ISO 11146-3 section 10.4.3 describes this method. It is assumed that M²=1 and thus the summed data is from a perfect TEM Gaussian distribution. -
Page 81: Gamma Correction
Knife Edge 10/90 Legacy Knife Edge Prog Legacy % Energy Legacy % Peak Legacy Moving Slit Azimuthal (ISO) The Ellipticity result is the ratio of the computed beam widths. The Minor (smaller) beam width is always divided by the Major (larger) to produce a result less than or equal to one. -
Page 82: Convolution
5.12 Convolution Convolution algorithms in LBP2 may take on a number of forms. In the broadest sense, convolution refers to a general-purpose algorithm that can be used in performing a variety of area process transformations. One such general-purpose algorithm will be described here. For the purpose of this description, the best way to understand a convolution is to think of it is a weighted summation process. - Page 83 The tables below give the convolution coefficients (K values) for some of the included low-pass spatial filters. LBP2 User Guide Document No: 50306-001 Rev G 3/12/2020 Page 83...
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Page 84: Chapter 6 Troubleshooting
CHAPTER 6 Troubleshooting System Troubleshooting Symptoms Cause Resolution General Errors The service is not running. If possible, restart the service with the Windows Service Spiricon.ConsoleService.exe Manager, otherwise reboot the is a required service process computer to restart the service. for all LBP2 products. Ensure that TCP ports 10100- 11100 are available. - Page 85 System Troubleshooting Symptoms Cause Resolution SP Model Cameras Verify cable connection between the camera and the computer. Camera may not be connected or USB cable is Verify that the device is defective. recognized in Windows Device Manager. Ensure camera is connected to a USB 2.0 high-speed port, power A powered USB 2.0 high- CANNOT connect to an...
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Page 86: Appendix Aiso Computations Table
APPENDIX A ISO Computations Table This table of ISO computations follows the labeling and notions found in the ISO standards. Where differences exist within the standards, no particular preference is given to any one notation. The information contained here may not always agree with the latest releases of the individual standards;... - Page 87 circular beam. beam diameter (second moment) where : where r is the distance from the centroid is the azimuth angle and where the first moments give the coordinates of the centroid ...
- Page 88 beam waist 3.13.1 Beam width measurements x0,k 3.13.2 widths performed at the waist. y0,k σx0 σy0 device Ratio of the total 3.17 efficiency power/energy in the beam to the total input power/energy. Θ divergence 3.18 Full angle of the far-field Θ...
- Page 89 location, and peak fluence. pulse power Ratio of the pulse energy Q 3.46 τ to the pulse duration average power 3.47 Product of the average pulse energy Q and the pulse repetition rate. peak power 3.48 Maximum of the power-time function.
- Page 90 movement beam in the x-z and y-z planes. Requires a focusing element. beam angular Twice the standard stability deviation of the measured angular movement. Where s is the angular standard deviation of the energy/power distribution and fl is the focal length of the focusing optic.
- Page 91 (camera) system. x y z beam axis A second coordinate system system that defines the axes of the laser beam. maximum 3.1.5 Maximum of the spatial power/energy power/energy density density distribution function E(x,y,z) /H(x,y,z) at location z. Peak fluence. location of the 3.1.6 Location of E (z)/H...
- Page 92 eccentricity: effective 3.2.7 Irradiation area at location z irradiation area for which the power/energy density exceeds the threshold density. effective avg. 3.2.8 Spatially averaged power/energy power/energy density of the density distribution at location z, defined as the weighted mean.
- Page 93 dxdy Note: U =0 for a flat top beam. plateau For distributions having a 3.2.11 uniformity nearly flat-top profile. plateau uniformity for CW- beams FWHM plateau uniformity for pulsed beams ...
- Page 94 the fit between measured and theoretical distributions. goodness of fit: where: N is the total number of data points in the measured distribution, is the maximum deviation between measured and theoretical distributions of apertured powers/energies truncated at random locations...
- Page 95 ρ spot radius The spot radius is measured to the location of the first minimum in the point- spread function. for square pinholes: for round pinholes: β angular Maximum usable angular dynamic range range of the Hartmann sensors.
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Page 96: Appendix B Camera Specifications
Distortion of the beam may occur with average power densities as low as 5W/cm Note: All USB3 cameras supported by LBP2 will operate in either 32 bit or 64 bit Windows Operating Systems (OS). Newport recommends Windows 10 with at least 4GB of RAM memory and an add-in graphics card. - Page 97 LBP2 VIS2/IR2 Series Camera LBP2 VIS3 Series Camera LBP2 User Guide Document No: 50306-001 Rev G 3/12/2020 Page 97...
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Page 98: Appendix C -1550 Phosphor Coated Cameras
APPENDIX C -1550 Phosphor Coated Cameras Item Specification Model LBP2-IR2 LBP2-HR-IR2 NIR wavelength, 1/1.8” NIR wavelength, 1/1.8” Application Format, low resolution Format, high resolution Spectral Response 1440 - 1605nm 1440 - 1605nm Active Area 7.1mm X 5.3mm 7.1mm X 5.3mm Pixel Spacing (1) 7.38μm x 7.38μm 3.69μm x 3.69μm... -
Page 99: Appendix D Legacy Camera Specifications
5W/cm² Note: All USB2 cameras supported by LBP2 will operate in either 32 bit or 64 bit Windows Operating Systems (OS). Newport recommends Windows 7 with at least 4GB of RAM memory and an add-in graphics card. - Page 100 LBP2 Series Camera w/ three ND filters. LBP2 User Guide Document No: 50306-001 Rev G 3/12/2020 Page 100...
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Page 101: Appendix E Legacy -1550 Phosphor Coated Cameras
96mm x 76mm x 28mm; 4.5mm recess below surface below surface Operation mode Interline transfer progressive scan CCD Software supported LBP2 Series PC interface USB 2.0 Minimum host Pentium IV 1GHz (Dual-core & >2GHz for best performance), 1GB system Memory, USB2, Operating system: Windows 7 requirements (1) Despite the small pixel size, the spatial resolution will not exceed 50µm due to... - Page 102 INDEX .bmp ..........69 Encircled Power Methods ....80 .csv ..........60 epss method ........80 .gif ..........69 Exposure ......... 24 .jpeg ..........69 File Access........68 .lbp2Data .........60 File Set ........... 47 .lbp2Setup ........60 Frame Averaging ......31 .PDF file ...........68 Frame Buffer ........58 .png ..........69 Frame Comment ......
- Page 103 Pin ..........56 Separate Pages ........ 49 Power/Energy ........34 Setup files ........60 Primary Dock Window .......53 Source ..........21 Print Preview ......50, 68 Start ..........22 Processing ........31 Start Page ........53 Programmable % of Peak ....36 Statistics ......... 37 Programmable % of Total Power/Energy Status Bar ........
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