ESC/PKOS, 104 Barksdale Street, Hanscom AFB MA 01731-1806

66 -- TRANSCEIVER TELESCOPE SOL F19650-95-R0007 DUE 032095 POC SSGT Edgar A. Chavez, Contract Administrator, 617/377-9164, FAX: 617/377-9217; Mr John Miller, Division Chief, 617/377-2195. A new transceiver telescope is required for a LIDAR sensor. The system operates in the LWIR using two(2) CO2 LASER transmitters and is designed for filed use in desert to arctic environments. This telescope will be housed in a partially controlled environment that is subject to motion shocks at levels consistent with standard air-ride suspension systems. The telescope must not lose focus or alignment due to this environment. The physical and optical requirements are as follows: clear aperture 12'' diameter, magnification 20X, wavefront quality 4 peak to valley @HENE, surface quality (=60 -40, surface coat A1 with 1500A SIO overcoat, transmission )=90% from 9.15 TO 10.85u, design Dall-Kirkham or Mersenne with graduated, lockable focal adjustment, design constraints afocal off-axis unobscured, material Xerodur, dimensions within approx. 16''X20''X75'' footprint, thermal stability performance from 10 - 30 degrees Celsius, ruggedness withstand air-ride transport, laser pulse damage threshold )300mJ/cm2. See Numbered Note(s): 1. (0034)

Loren Data Corp. http://www.ld.com (SYN# 0297 19950206\66-0005.SOL)