Abstract: We present the Mexican Infrared-Optical New TechnologyTelescope Project (TIM). The design and construction ofa 7.8 m telescope, which will operate at theObservatorio Astronomico Nacional in San Pedro Martir,B.C. (Mexico), are described. The site has beenselected based on seeing and sky condition measurementstaken for several years. The f/1.5 primary mirrorconsists of 19 hexagonal off-axis parabolic Zerodursegments. The telescope structure will be alt-az,lightweight, low cost, and high stiffness. It will besupported by hydrostatic bearings. The single secondarywill complement a Ritchey-Chretien f/15 design,delivering to Cassegrain focus instrumentation. Thetelescope will be infrared optimized to allowobservations ranging from 0.3 to 20 microns. The TIMmirror cell provides an independent and full activesupport system for each segment, in order to achieveboth, phasing capability and very high quality imaging(0.25 arcsec).!10
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机译：摘要：我们提出了墨西哥红外光学新技术望远镜项目（TIM）。 7.8 m望远镜的设计和建造，将在不列颠哥伦比亚省圣佩德罗·马蒂尔的国家天文台进行观测。 （墨西哥）进行了说明。根据几年来的视线和天空状况测量结果选择了该地点。 f / 1.5主镜由19个六角形离轴抛物线Zerodursegments组成。望远镜的结构将是alt-az，重量轻，低成本和高刚度。它将由静压轴承支撑。单个中学将补充Ritchey-Chretien f / 15设计，提供给Cassegrain聚焦仪器。望远镜将进行红外优化，以实现0.3到20微米的观测范围。 TIMmirror单元为每个段提供一个独立且完整的主动支持系统，以实现定相功能和非常高质量的成像（0.25弧秒）。
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