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Primary mirror delivered to Daniel K. Inouye Solar Telescope（图）
Primary mirror Daniel K. Inouye Solar Telescope
2017/9/4
The primary mirror for the National Science Foundation (NSF) Daniel K. Inouye Solar Telescope (DKIST) -- the heart of this sophisticated instrument -- was successfully delivered Aug. 2 to its destinat...
Evolution and Mirror Neurons. An Introduction to the Nature of Self-Consciousness
self-awareness self-consciousness evolution mirror neuron non human primate intersubjectivity
2015/7/30
Self-consciousness is a product of evolution. Few people today disagree with the evolutionary history of humans. But the nature of self-consciousness is still to be explained, and the story of evoluti...
Curvelets and Wave Atoms for Mirror-Extended Images
Curvelets Wave Atoms Mirror-Extended Images
2015/7/15
We present variants of both the digital curvelet transform, and the digital wave atom transform, which handle the image boundaries by mirror extension. Previous versions of these transforms treated im...
Analysis of TMT Primary Mirror Control-Structure Interaction
Extremely Large Telescopes Control Systems Control-Structure-Interaction
2015/5/12
The primary mirror (M1) of the Thirty Meter Telescope (TMT) is composed of 492 hexagonal segments of
circumscribed diameter 1.43m, as shown in Figure 1. The out-of-plane degrees of freedom are contro...
Advances in Edge Sensors for the Thirty Meter Telescope Primary Mirror
Extremely Large Telescopes edge sensors segmented mirrors
2015/5/12
The primary mirror segments are passively constrained in the three lateral degrees of freedom. We evaluate the segment
lateral motions due to the changing gravity vector and temperature, using site ...
Design of a Prototype Primary Mirror Segment Positioning Actuator for the Thirty Meter Telescope
TMT actuator control system
2015/5/12
In order for the Thirty Meter Telescope (TMT) to achieve the required optical performance, each of its 738 primary
mirror segments must be positioned relative to adjacent segments with nanometer-lev...
Performance Prediction of the TMT Tertiary Mirror Support System
Tertiary mirror mirror performances mirror support optimizations
2015/5/12
The Ritchey-Chrétien (RC) optical design of Thirty Meter Telescope (TMT) calls for a 3.1m diameter secondary mirror
(M2M) and an elliptical tertiary mirror (M3M) of 3.5m along its major axis and 2.5...
Development of the Primary Mirror Segment Support Assemblies for the Thirty Meter Telescope
TMT segment mirror support
2015/5/12
This paper describes the studies performed to establish a baseline conceptual design of the Segment Support Assembly (SSA) for the Thirty Meter Telescope (TMT) primary mirror. The SSA uses a combinat...
Primary Mirror Segmentation Studies for the Thirty Meter Telescope
mirror segment segmentation
2015/5/12
The Thirty Meter Telescope (TMT) project, a partnership between ACURA, Caltech, and the University of California, is
currently developing a 30-meter diameter optical telescope. The primary mirror wi...
Advancement of the Segment Support System for the Thirty Meter Telescope Primary Mirror
telescope mirror segment
2015/5/12
This paper presents refinements to the design of the TMT primary mirror segment passive-support system that are
effective in reducing gravity print-through and thermal distortion effects. First, a no...
A Note on Gluing Dirac Type Operators on a Mirror Quantum Two-Sphere
Gluing Dirac Type Operators Mirror Quantum Two-Sphere
2014/12/12
The goal of this paper is to introduce a class of operators, which we call quantum Dirac type operators on a noncommutative sphere, by a gluing construction from copies of noncommutative disks, subjec...
The asymmetry of the underwater horizontal light field and its implications for mirror-based camouflage in silvery pelagic fish
horizontal light field silvery pelagic fish
2014/11/28
Many pelagic species, particularly teleost fish, have silvered lateral surfaces that are thought to primarily serve
as a form of camouflage. The underlying argument is that the underwater light field...
The asymmetry of the underwater horizontal light field and its implications for mirror-based camouflage in silvery pelagic fish
the underwater horizontal light field mirror-based camouflage silvery pelagic fish
2014/10/16
Many pelagic species, particularly teleost fish, have silvered lateral surfaces that are thought to primarily serve as a form of camouflage. The underlying argument is that the underwater light field ...
Researchers Invent ‘Meta Mirror’ to Help Advance Nonlinear Optical Systems
Laser Nonlinear mirror Chemical Optical The mirror
2014/7/18
AUSTIN, Texas — Researchers at the Cockrell School of Engineering at The University of Texas at Austin have created a new nonlinear metasurface, or meta mirror, that could one day enable the miniaturi...
Deducing radiation pressure on a submerged mirror from the Doppler shift
submerged mirror the Doppler shift Optics
2012/5/29
Radiation pressure on a flat mirror submerged in a transparent liquid, depends not only on the refractive index n of the liquid, but also on the phase angle psi_0 of the Fresnel reflection coefficient...