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Summary of Contents for Princeton Instruments LS 785
- Page 1 15 Discovery Way, Acton, MA 01720 Phone: (978)263-3584, Fax: (978)263-5086 Web Site: www.princetoninstruments.com LS 785 High Throughput Lens Spectrograph User Manual Ver. 1.3...
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Page 3: Table Of Contents
Inside the LS 785 ............................. 6 Chapter 2 -- Operation ..................7 Hardware Installation ..........................7 Mounting the Detector to the LS 785 .........................7 Making the Cable Connections ..........................7 WinSpec Software and the LS 785 ......................8 Software Installation ............................8 LS 785 Calibration .............................8... - Page 4 LS 785 High Throughput Lens Spectrograph User Manual Figure 2-11. Manual Slit ............................16 Figure 2-12. Shutter Assembly ..........................16 Figure 2-13. 10 mm Insert with Fiber........................17 Figure 2-14. SMA Insert with Fiber ........................17 Figure 2-15. FC Insert with Fiber ..........................17...
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Page 5: Chapter 1 -- General
Gold-coated plane reflection gratings are used in the LS 785 providing resolution capability of 5cm-1. Each grating is provided on a kinematic mount to enable easy interchanging when required. The standard LS 785 also features micrometer-controlled grating rotation which allows the user to change wavelengths in order to explore different spectral regions of interest. -
Page 6: Inside The Ls 785
LS 785 High Throughput Lens Spectrograph User Manual Inside the LS 785 Grating Focusing Focus Lens Adjustment PIXIS CCD Detector Wavelength Adjustment Collimating Lens Entrance Slit Adjustment Shutter Entrance Slit X-Y Fiber Adapter... -
Page 7: Chapter 2 -- Operation
3. Connect the controller to a power source. 4. If there is a Princeton Instruments 25 mm external shutter mounted to the spectrometer and the Spec-10 does not have an internal shutter, plug the external shutter cable into the Shutter Control “Remote”... -
Page 8: Winspec Software And The Ls 785
1. Verify that the detector (and controller) is connected to the computer and that the detector is turned on. 2. Turn on your computer. 3. If WinSpec/32 was purchased with the LS 785, install WinSpec/32 using the installation disk and password supplied. -
Page 9: Focus Adjustment
Chapter 2--Operation Focus Adjustment When purchased with a Princeton Instruments CCD detector, the LS 785 is normally focused and aligned at the factory and shipped as an integrated system ready to operate. In this instance no further adjustments are required. -
Page 10: Lightfield Software And The Ls 785
3. Verify that your computer can be connected to the Internet. Internet connectivity is required for product activation. 4. If LightField was purchased with the LS 785, install LightField using the installation disk and product key supplied. 5. Reboot your computer after completing the installation. -
Page 11: Focus Adjustment
3. Rotate the Focus Adjustment locking nut counter-clockwise to unlock the micrometer spindle. 4. Power on the LS 785, CCD detector, and neon light source. 5. Start LightField and after the LS 785 and CCD detector are detected, move their icons into the Experiment Devices area. -
Page 12: Wavelength Adjustment
1. With the LS 785, CCD detector, and neon light source powered on, start LightField. 2. After the LS 785 and CCD detector are detected, move their icons into the Experiment Devices area. 3. If the CCD detector has a shutter or is controlling a shutter, open the Trigger/Shutter expander and set the Shutter Mode to Always Open. -
Page 13: Manual Slit Width Adjustment
Chapter 2--Operation Manual Slit Width Adjustment The slit width of the bilateral slit assembly is adjustable from 0.010 millimeters to 3 millimeters (10 to 3,000 µm) by a micrometer located on the top of the slit housing. The micrometer knob is graduated in 0.010 millimeter (10 µm) increments. -
Page 14: Grating Assembly Interchange
LS 785 High Throughput Lens Spectrograph User Manual Grating Assembly Interchange The LS 785 grating assembly is initially aligned at the factory and kinematically mounted in the instrument to enable easy interchange without requiring realignment. Note that if a grating is purchased later, it will require alignment to the LS 785 and instructions will be provided with the purchased grating assembly. - Page 15 Chapter 2--Operation 10. Replace and secure the LS 785 cover. Place the previously removed grating assembly in the storage container and secure it using the knurled screw. Tighten the two captive screws to secure the grating assembly in the storage container and then replace the lid.
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Page 16: Shutter Replacement
LS 785 High Throughput Lens Spectrograph User Manual Shutter Replacement The following instructions apply if the LS 785 was shipped from the factory with an installed external shutter. Because a shutter has a finite lifetime, it may become necessary to replace a shutter. -
Page 17: X-Y Fiber Adapter
Procedure: 1. If using an optical fiber with a 10mm ferrule at the input of the LS 785, use a 1/16” hex wrench to loosen the set screw in the XY adapter barrel. Slide the 10mm adapter insert into the barrel of the XY adapter and re-tighten the set screw. -
Page 18: Figure 2-16. X-Y Stage Adjustment
LS 785 High Throughput Lens Spectrograph User Manual Figure 2-16. X-Y Stage Adjustment 5. Take a full image while running the CCD detector in Focus mode. 6. Identify a suitable peak (for example, Neon at 837.6 nm). 7. Zoom in on the peak into a window approximately 25 pixels x 25 pixels. -
Page 19: Appendix A - Specifications
Appendix A – Specifications Outline Drawing... -
Page 20: Relative Wavelength Coverage With 1200 G/Mm Grating
LS 785 High Throughput Lens Spectrograph User Manual Relative Wavelength Coverage with 1200 g/mm Grating Working range Coverage Laser (nm) (cm-1)* (cm-1)** 120 - 3215 1985 120 - 2898 1884 120 - 2524 1768 *Lower working range for Raman Spectroscopy applications is ultimately limited by the selection of the optional notch or edge filters. -
Page 21: Appendix B -- Mounting The Detector
2. Locate the correct adapter flange or adapter flange assembly for the detector to be attached to the LS 785. 3. If the correct adapter is not attached to the LS 785, refer to the photograph of the adapter attached and remove it. -
Page 22: Pixis
1. If detector other than a PIXIS was previously mounted to the LS 785, re-install the four #8-32 socket head screws and washers used in the instrument housing to secure the other adapter. 2. If the spacer is not installed, mount it to the face of the LS 785 with three (3) #10-32 socket head screws (5/32” hex wrench). -
Page 23: Spec 10 Ln With Integrated Shutter
5. Using a 9/64” hex wrench, attach the Spec 10 LN and adapter to the LS 785 with three #8-32 socket head screws and washers as shown in the photograph. Store the fourth socket head screw and washer since all four screws and washers will be needed if you change over to a PIXIS detector. -
Page 24: Spec 10 Ln Without Shutter
5/32” hex wrench for removing three socket heads holding spacer on. Procedure: 1. If another adapter is mounted to the LS 785, remove that adapter (and, in the case of the PIXIS, the spacer). 2. Using a 9/64” hex wrench, remove the four #8/32 socket head screws with washers from the face of the LS 785.
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