3.5 Accessories for Beam Profiling Spiricon has the most extensive array of accessories for beam profiling existing. There are components for attenuating, filtering, beam splitting, magnifying, reducing and wavelength conversion. There are components for wavelengths from the deep UV to C02 wavelengths. Most of the components are modular so they can be mixed and matched with each other to solve almost any beam profiling reguirement 3.5.1 Neutral Density Attenuators/Filters For almost all applications, the laser beam intensity is too high for the operating range of the CCD. Therefore ND glass attenuator filters are available to reduce the intensity to the proper level at the CCD. In general, either the LBF-50 attenuating filer set or a set of individual, stackable, screw on filters is recommended. These filters are carefully designed not to affect beam guality or cause interference effects. One stackable ND1 filter and 2 ND2 filters are supplied standard with each c-mount camera. Model Stackable LBF-50 ATP-K Variable UVND Filters Specialty Filter Specialty Filter Mounting_C-Mount Threads C-Mount Threads C-Mount Threads C-Mount Threads_C-Mount Threads C-Mount Threads The individual filters come in three versions, the ND1 filter in the red housing with -10% transmission in the visible, the ND2 filter in the black housing with -1% transmission and the ND3 filter in the green housing with -0.1 % transmission. The individual filters can be screwed on top of each other and thus stacked. They are set at a small wedge angle in the housing so as not to cause interference effects. Stackable filter showing wedge These bulk-absorbing "neutral density'or ND filters do not have a flat response in attenuation vs. wavelength. See the graph for typical transmission vs. wavelength Nominal ND(vis) Clear Aperture Damage threshold " _ ! PnMonta For latest updates please visit our website: www.ophiropt.com/photonics aoMmum 01.01.2016

The LBF-50 comes with a set of filters that are inserted into the flange shown, mounted on top of each other and secured. A set of 6 filters is provided that can achieve attenuation anywhere from ND 0.3 to ND 4. The LBF-50 is especially useful for CS or C mount cameras with the CCD recessed way below the surface. The filters are recessed into the camera thus saving thickness as shown in the illustration to the right. LBF - 50 filter assembly LBF-50 on C mount camera Nominal ND(vis) Clear Aperture Damage threshold ATP-K Variable Attenuator This option makes beam profiling easy. The ATP-K attenuates...

UV ND Filters This accessory can be used with any camera fitted with C- mount threads. Simply thread the attenuator assembly into the front of the camera and then slide the ND filter arrays to get the desired amount of attenuation. This device can be used with laser outputs from microwatts to Watts. Three filter holders are provided with two filters in each holder. Each filter in the holder provides for a different value of attenuation. To use, slide the desired holder into the housing slot. A click is felt when the filter is properly aligned with the beam. The holders provided will allow for...

Ordering Information 4mm spacing screw on filter for camera with transmission of between 20% and 5% depending on spectral range. Can be stacked and combined with other filters and beam splitters.. One filter is included with Spiricon cameras ND2 stackable filter 4mm spacing screw on filter for camera with transmission of between 7% and 0.5% depending on spectral range. SPZ08235 (black housing)__Can be stacked and combined with other filters and beam splitters. Two filters are included with Spiricon cameras__ ND3 stackable filter 4mm spacing screw on filter for camera with transmission of between...