18 August 2005 Recent advances in reaction bonded silicon carbide optics and optical systems
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SSG Precision Optronics, Inc. (SSG) has recently developed a number of Reaction Bonded (RB) Silicon Carbide (SiC) optical systems for space-based remote sensing and astronomical observing applications. RB SiC's superior material properties make it uniquely well suited to meet the image quality and long term dimensional stability requirements associated with these applications. An overview of the RB SiC manufacturing process is presented, along with a summary description of recently delivered RB SiC flight hardware. This hardware includes an RB SiC telescope and Pointing Mirror Assembly (PMA) for the Geostationary Imaging Fourier Transform Spectrometer (GIFTS) mission and an imaging telescope for the Long-Range Reconnaissance Imager (LORRI) mission. SSG continues to advance the state-of-the-technology with SiC materials and systems. A summary of development activities related to a low-cost, fracture tough, fiber reinforced RB SiC material formulation, novel tooling to produce monolithic, partially closed back mirror geometries, and extension of the technology to large aspheric mirrors is also provided.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph L. Robichaud, Joseph L. Robichaud, Jay Schwartz, Jay Schwartz, David Landry, David Landry, William Glenn, William Glenn, Brian Rider, Brian Rider, Michael Chung, Michael Chung, "Recent advances in reaction bonded silicon carbide optics and optical systems", Proc. SPIE 5868, Optical Materials and Structures Technologies II, 586802 (18 August 2005); doi: 10.1117/12.617406; https://doi.org/10.1117/12.617406

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