Commander, Naval Air Warfare Center Weapons Division, Code 210000D, 1 Administration Circle, China Lake, CA 93555-6100

59 -- LONG WAVE INFRARED COLLIMATOR SOL N68936-98-R-0157 DUE 061598 POC Glenda Downing, Contract Specialsit, (760) 939-7503 This notification is being presented in two parts. In order to receive the complete description of this requirement refer to solicitation number N68936-98-R-00157A. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. Solicitation N68936-98-R-0157 is being issued as a Request for Proposal (RFP) with a SIC Code of 3827. This solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular 97-03 and DAC 91-12. The Naval Air Warfare Center Weapons Division (NAWCWPNS) intends to procure on full and open competition basis one (1) each JR-2 Long Wave Infrared (LWIR) Collimator with the following specifications: The JR-2 LWIR Collimator, hereafter referred to as "Collimator," will project the LWIR energy from a square matrix of 256 by 256 resistive elements onto a 5 by 5 degree square field of view. The collimator is part of an infrared scene projection system and will be mounted on the inner gimbal of a two gimbal [azimuth and elevation] target presentation portion of a five axis flight motion simulator. These two gimbals of the five axis flight motion simulator allow the projection system [collimator, source and drive electronics] to move in azimuth and elevation about the three inner gimbals and the unit under test. The gimbal to which the collimator will be mounted is hereafter referred to as the "elevation" gimbal. The following is a list of requirements: 1.Spectral Band: 8-12 microns wavelength; 2. Transmission: Greater than or equal to 60 percent average across the spectral band; 3. Object Plane Extent: A square, 26 by 26 millimeters in extent; 4. Projected field of view: 5 by 5 degree square; 5. (Focal length): (11.73 inches. This is a redundant requirement but is included for reference); 6. Exit Pupil Diameter: 5 inches, unobscured; 7. Exit Pupil Relief: Greater than or equal to 44 inches; 8. Image Distortion: Less than 0.5 percent at field corner; 9. Optical Resolution (applies to entire field of view):Encircled energy greater than or equal to 80 percent in a 0.3 milliradian circle. Alternate method: Modulation Transfer Function (MTF) greater than or equal to 60 percent at 1.5 line pairs/milliradian in all orientations. 10. Operational environment (all resolution requirements apply); 10.1 Indoor optical laboratory temperature to range between 15 and 25 degrees Celsius. 10.2 Acceleration: The collimator will have to operate in a dynamic environment. The operational specifications for the two outer gimbals are given here so that appropriate consideration can be given to mechanical design. The azimuth gimbal has a radius of 72 inches, a maximum angular acceleration of 1000 degrees per second squared, and a maximum angular velocity of 200 degrees per second. The frequency response of this gimbal, at 0.5 degrees peak-to-peak, is 7.5 Hertz. The elevation gimbal has a radius of 50 inches, a maximum angular acceleration of 1200 degrees per second squared, and a maximum angular velocity of 200 degrees per second. The frequency response of this gimbal, at 0.5 degrees peak-to-peak, is 6.5 Hertz. 11. Physical size constraints. This description deals with two geometric volumes. The first is the design volume that is available for collimator and for the resistive array dewar assembly, hereafter referred to as "projector", when mounted on the five axis flight motion table. The second is a projector volume which, along with the collimator, must be accommodated within the design volume. The design volume includes the gimbal port volume and an external volume 30 inches wide, 50 inches long and 15 inches high. The elevation gimbal is essentially half a rectangle with truncated corners (fillets). The elevation gimbal has a square port in the central portion of the target mounting area to facilitate target presentation to the inner three axes of the flight motion table and the unit under test. This square port is 13 inches on a side. For the sake of this description, the center of this 13 inch opening at the outer surface of the gimbal will be the reference point for all dimensions. For example, the external gimbal geometric volume for the projection system as defined in the preceding paragraph becomes: +/-25 inches "X", +/-15 inches "Y", +15 inches "Z". The inner surface, or bottom side, of the elevation gimbal is then at -6 inches "Z". The external gimbal geometrical volume allocated for projector and collimator, that can be accommodated on the elevation gimbal and clear the azimuth gimbal is a rectangular volume 30 inches wide, 50 inches long and 15 inches high. This volume and the volume of the target presentation port through the gimbal must accommodate the infrared projector and the collimator element. No dimension of the final optical assembly (source and collimator) may extend beyond the boundary of this geometrical volume. Using the geometric reference system defined previously, the geometric volume available for the collimator and the projector can be represented by the union of two rectangular boxes. The Cartesian coordinate points of the corners of this volume are given below. Using a right handed coordinate system, starting at the center of the elevation gimbal opening, or port, at the outer surface, or "top side", of the gimbal the coordinate points of the corners of the volume are (all coordinates are in inches): [6.5,6.5,-6.0]; [-6.5,6.5,-6.0]; [-6.5,-6.5,-6.0]; [6.5,-6.5,-6.0]; [6.5,6.5,0]; [-6.5,6.5,0]; [-6.5,-6.5,0]; [6.5,-6.5,0]; [25.0,15.0,0]; [-25.0,15.0,0]; [-25.0,-15.0,0]; [25.0,-15.0,0]; [25.0,15.0,15.0]; [-25.0,15.0, 15.0]; [-25.0,-15.0, 15.0]; [25.0,-15.0, 15.01] Using this Cartesian coordinate system, the exit pupil of the collimator must be at [0,0,-50] coincide with the axes of intersection of all five gimbals. THE SECOND SECTION OF THIS REQUIRMENT DESCRIPTION IS FOUND IN SOLICITATION N68936-98-R-0157A. See Note(s): 1. (0146)

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