McPherson reflective telescope and collimator systems (see also
reflective condenser and focusing accessories)
| Reflective Aperture Matching System, Collimating and Focusing ... Reflective Aperture Matching / Collimator ... The aperture matching system uses optics designed to suit customer requirements for angular acceptance, field of view, clear aperture, etc. We also consider required power levels in spectral bands or bandpass and uniformity requirements. Systems can be produced that closely follow idealistic goals for performance or more empirical systems that simply get the job done. These systems are most often combined with our UV-Vis wide wavelength range monochromators for use in spectral test applications. An example can be seen at McPherson Spectral Test Stations. |
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Cassegrain Collection Optics / Telescope ... Cassegrain collector telescope with 5.5" clear aperture and reflective parabolic primary mirror. Used to collect light from a distance and focus same to spectrometer slit or fiber optic. All reflective design can be coupled direct to entrance slit to prevent fiber losses. These telescopes are usually customer arranged to spatially plot an event, or monitor distinct events. Telescopes are equipped with high quality parabolic optics for optimal light gathering and signal delivery. Doped and UV capable fibers are available. The spectrometer includes a reflective fiber-coupling accessory to aperture match fast fibers to spectrometer optics most effectively.
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| Unobstructed Collection Optics ... Unobstructed Off Axis Newtonian Collection telescope with 2" clear aperture and reflective, off axis parabolic primary mirror. Used to collect light from a distance and focus same to spectrometer slit or fiber optic. All reflective design uses asphere to prevent light loss. These telescopes are usually customer arranged to spatially plot an event, or monitor distinct events. Telescopes are equipped with high quality parabolic optics for optimal light gathering and signal delivery. |
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Reflective unobstructed Off Axis Collimator ... Reflective Aperture Matching / Collimator ... Collimator uses a pair of spherical optics with normal incidence reflections to produce a collimated beam. Clear aperture is typically between 100 and 200mm working at ~f/5. It is available with pick-off optics for a feedback detector system. This optical design is used in many McPherson accessories and when the cost of off axis parabolas is not warranted, the degree of collimation they provide not required, or you just need more light. It is often integrated in McPherson Spectral Test Stations.
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| Large Aperture f/1 6X Reflective Objective ... the 'Photon Grabber!' High throughput, spectrally agile, 6X reflective confocal objective delivering near diffraction-limited performance in the Visible and ultraviolet spectral region! The f/1 system uses ~12 inch diameter interferometrically aligned parabolic reflectors with high efficiency broadband coatings for optimal signal collection, excellent throughput and ideal image formation. The objective is installed at the entrance of a unique McPherson triple monochromator designed for Raman spectroscopy. |
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Reflective Collimator ... This compact, vacuum compatible design is relative fast and provides moderate beam shaping. Reflective cylindrical optics are selected to better collect light and handle the significant aspect ratio at monochromator slits. This system does not produce a real collimated beam but will manage to deliver about 90% of the collected light to less than 20mm spot over a meter away. The version pictured is configured to work best with the Model 632 Deuterium lamp and the 200mm Model 234/302 vacuum monochromator. These collimators are frequently used in our vacuum ultraviolet spectrophotometer VUVaS 2000.
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| Reflective Aperture Matching System, Collimating, Vacuum compatible ... Vacuum compatible collimating chamber uses a pair of spherical optics with normal incidence reflections to produce a collimated beam. This unit provides better collimation than the crossed cylinders and the normal incidence reflections take a toll on reflective efficiency. This optical design is used in Many McPherson accessories, like the large aperture collimator above, when the cost of off axis parabolas is not warranted, the degree of collimation they provide not required, or you just need more light. These collimators may be used in our vacuum ultraviolet spectrophotometer VUVaS 2000. |
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