appendix 4.8.b gsmt image quality degradation due to wind load
... secondary structure deformation, primary mirror deformation, and the total OPD due to wind load. The figures were created in Zernikegraph_OPD.m. ...
... secondary structure deformation, primary mirror deformation, and the total OPD due to wind load. The figures were created in Zernikegraph_OPD.m. ...
Perth Observatory Day Tour Activities
... be taken. It looks at the way it was used for asteroid and comet tracking using a blink comparator with students using their own blink comparator to see how it worked. ...
... be taken. It looks at the way it was used for asteroid and comet tracking using a blink comparator with students using their own blink comparator to see how it worked. ...
ppt
... • Choose electroplated Al on R&H CVD SiC as our prime candidate mirror coating and substrate (for now). • Continue to develop alternate coatings and substrates. • Fabricate and test a small batch of electroplated Al on SiC. • After successful demonstration to 105 shots, place an order large enough t ...
... • Choose electroplated Al on R&H CVD SiC as our prime candidate mirror coating and substrate (for now). • Continue to develop alternate coatings and substrates. • Fabricate and test a small batch of electroplated Al on SiC. • After successful demonstration to 105 shots, place an order large enough t ...
09Optics
... – Image formed is VIRTUAL (appears behind mirror where no light actually falls.) – Image is upright. ...
... – Image formed is VIRTUAL (appears behind mirror where no light actually falls.) – Image is upright. ...
Slide 1
... Test of tracker looking through window • An SMR was measured directly at ~1 m • 1 cm thick window was inserted between the tracker and the SMR • The apparent SMR position was measured with the tracker • This was corrected for the refraction of the window • These tests showed agreement to 20 ppm, wh ...
... Test of tracker looking through window • An SMR was measured directly at ~1 m • 1 cm thick window was inserted between the tracker and the SMR • The apparent SMR position was measured with the tracker • This was corrected for the refraction of the window • These tests showed agreement to 20 ppm, wh ...
MAPLE: Reflected Light from Exoplanets with a 50
... basic component specifications, e.g. telescope mirrors, mirror mounting dimensions, overall spatial constraints, and the size/quality of all subsequent optics in the train. The optical design is based on a 50 cm aperture triSchiefspiegler telescope. The design uses 3 spherical mirrors (M1, M2, M3), ...
... basic component specifications, e.g. telescope mirrors, mirror mounting dimensions, overall spatial constraints, and the size/quality of all subsequent optics in the train. The optical design is based on a 50 cm aperture triSchiefspiegler telescope. The design uses 3 spherical mirrors (M1, M2, M3), ...
Library Loaner Telescope Program
... • Carry the telescope with one hand using the handle and the other grabbing the platform and base together. • Try not to bump the zoom eyepiece or the tube finder. • Place the telescope on a car seat so that the zoom eyepiece and the black finder do not bump into the seat back or the seat buckle. • ...
... • Carry the telescope with one hand using the handle and the other grabbing the platform and base together. • Try not to bump the zoom eyepiece or the tube finder. • Place the telescope on a car seat so that the zoom eyepiece and the black finder do not bump into the seat back or the seat buckle. • ...
Finishing an engineered lightweight 396mm CA, f1.376 concave
... variables are things seasoned opticians should have learned in their first few years of polishing on a daily basis. Yet the mysticism surrounding lightweight mirrors has persisted for nearly 100 years. What we’ve seen is that the machine and the tool influence the smoothness, figure, control and co ...
... variables are things seasoned opticians should have learned in their first few years of polishing on a daily basis. Yet the mysticism surrounding lightweight mirrors has persisted for nearly 100 years. What we’ve seen is that the machine and the tool influence the smoothness, figure, control and co ...
ASTRONOMY PORTFOLIO 2009 Atacama Cosmology Telescope
... Unlike other radio telescopes that look for a faint radio wave source then once found, tracks it, ACT will scan a patch of sky back and forth millions of times, creating an overlay of information, resulting in an image that can provide more detailed clues to help resolve the mysteries of the univers ...
... Unlike other radio telescopes that look for a faint radio wave source then once found, tracks it, ACT will scan a patch of sky back and forth millions of times, creating an overlay of information, resulting in an image that can provide more detailed clues to help resolve the mysteries of the univers ...
Geometric Optics - Rutgers Physics
... concave/convex mirror, projection screen and paper, light source and power supply, meter stick, ruler Introduction Optical instruments serve many functions. Microscopes magnify extremely tiny objects so as to make them visible. Telescopes collect and concentrate light from very faint and distant obj ...
... concave/convex mirror, projection screen and paper, light source and power supply, meter stick, ruler Introduction Optical instruments serve many functions. Microscopes magnify extremely tiny objects so as to make them visible. Telescopes collect and concentrate light from very faint and distant obj ...
The pinhole camera
... Basic properties of spherical surfaces Ray tracing Image formation Magnification Today: more optical elements, – Prisms – Mirrors ...
... Basic properties of spherical surfaces Ray tracing Image formation Magnification Today: more optical elements, – Prisms – Mirrors ...
Phys405-Chapter1
... side is the one you want to use for alignment. The rotational speed is set and read with the motor controller placed near the observation point. All alignment is done with R stationary and the motor controller off. In addition to the mirrors, there is a spherical lens with a focal length of approxim ...
... side is the one you want to use for alignment. The rotational speed is set and read with the motor controller placed near the observation point. All alignment is done with R stationary and the motor controller off. In addition to the mirrors, there is a spherical lens with a focal length of approxim ...
400 YEARS OF THE TELESCOPE
... Shortly after Huygens made his long refractors, a man named Sir Isaac Newton did some experiments and figured out that ...
... Shortly after Huygens made his long refractors, a man named Sir Isaac Newton did some experiments and figured out that ...
Advantages of Infinity-Corrected Optics in FT
... that has recently seen tremendous popularity in the world of visible microscopes. The term infinity-correction refers to the collimation of both the infrared and visible light beams in the microscope. Light rays from a distant object, or “at infinity”, enter the eye (or any detector of finite size) ...
... that has recently seen tremendous popularity in the world of visible microscopes. The term infinity-correction refers to the collimation of both the infrared and visible light beams in the microscope. Light rays from a distant object, or “at infinity”, enter the eye (or any detector of finite size) ...
Formative assessment marking key: Light Module Quiz
... convex mirror. Would either of these be suitable? Explain. Level of conceptual development ...
... convex mirror. Would either of these be suitable? Explain. Level of conceptual development ...
Choosing the Right Telescope
... have their optical tubes placed on a simple, sturdy, low-profile alt-az mounting and are very easy to transport to the field. There are Dobsonians in the ranges of 4 to 30 inches in aperture and are really the ultimate instrument for the casual observer. Periodic cleaning and infrequent realignment ...
... have their optical tubes placed on a simple, sturdy, low-profile alt-az mounting and are very easy to transport to the field. There are Dobsonians in the ranges of 4 to 30 inches in aperture and are really the ultimate instrument for the casual observer. Periodic cleaning and infrequent realignment ...
Deformable Mirrors Lecture 8
... – Shape of mirror surface when you push just one actuator (like a Greens function) – Can optimize your AO system with a particular influence function, but performance is pretty forgiving Page 8 ...
... – Shape of mirror surface when you push just one actuator (like a Greens function) – Can optimize your AO system with a particular influence function, but performance is pretty forgiving Page 8 ...
the measurement of the speed of the light
... f1, f2 -original and shifted face position respectively F1, F2-original and shifted focal points L- lens ...
... f1, f2 -original and shifted face position respectively F1, F2-original and shifted focal points L- lens ...
1. The diagram shows the concave mirror of a Cassegrain reflecting
... diagram should show the paths of two rays from a distant object, which pass through the telescope and emerge from the eyepiece lens. ...
... diagram should show the paths of two rays from a distant object, which pass through the telescope and emerge from the eyepiece lens. ...
N15_Geom_Optics - University of Arizona
... The “object-image relation” for a thin lens As we know, a lens can focus light to form an image on a screen. In the diagram at right, the object is the arrow on the left, and the image is the inverted red arrow on the right. If we have been given the position and size of the object, the “problem” i ...
... The “object-image relation” for a thin lens As we know, a lens can focus light to form an image on a screen. In the diagram at right, the object is the arrow on the left, and the image is the inverted red arrow on the right. If we have been given the position and size of the object, the “problem” i ...
Make your own telescope
... Allow time for children to make improvements where necessary. Make sure they do not spend so much time on their drawing that there is no time left for the actual construction of their telescope. Check that any adapted design drawings are satisfactory. Hand out the materials for making the telescopes ...
... Allow time for children to make improvements where necessary. Make sure they do not spend so much time on their drawing that there is no time left for the actual construction of their telescope. Check that any adapted design drawings are satisfactory. Hand out the materials for making the telescopes ...
Chapter 4
... •Virtual (Virtual images are formed by divergent rays. Light appears to originate from there). ...
... •Virtual (Virtual images are formed by divergent rays. Light appears to originate from there). ...
RELAY MIRROR TECHNOLOGY
... bounce intense, high – energy light beams off orbiting space mirrors and destroy enemy missiles moments after lift- off. Prototypes lasers combine break throughts in several fields to prode a BEAM, that can be “tuned” to most effectively penetrate the atmosphere and travel to targets half a world aw ...
... bounce intense, high – energy light beams off orbiting space mirrors and destroy enemy missiles moments after lift- off. Prototypes lasers combine break throughts in several fields to prode a BEAM, that can be “tuned” to most effectively penetrate the atmosphere and travel to targets half a world aw ...
Inexpensive mount for a large millimeter
... The range of motion of the mount is limited by interference between the truss and the support structure for the spherical rotary joint. The design in Fig. 4 has 1 rad of motion in elevation and cross elevation. The maximum change in jack length is a factor of 2 (3.84–7.86 m), so a single-stage teles ...
... The range of motion of the mount is limited by interference between the truss and the support structure for the spherical rotary joint. The design in Fig. 4 has 1 rad of motion in elevation and cross elevation. The maximum change in jack length is a factor of 2 (3.84–7.86 m), so a single-stage teles ...
Reflecting telescope
A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century as an alternative to the refracting telescope which, at that time, was a design that suffered from severe chromatic aberration. Although reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large diameter objectives. Almost all of the major telescopes used in astronomy research are reflectors. Reflecting telescopes come in many design variations and may employ extra optical elements to improve image quality or place the image in a mechanically advantageous position. Since reflecting telescopes use mirrors, the design is sometimes referred to as a ""catoptric"" telescope.