Search references for ASPHERICAL. Phrases containing ASPHERICAL
See searches and references containing ASPHERICAL!ASPHERICAL
Topics referred to by the same term
Aspherical may refer to: Aspherical space, a concept in topology Aspherical lens, a type of lens assembly used in photography which contains an aspheric
Aspherical
Japanese optics company
technology ASL — hybrid ‘ASphericaL’ elements GM — ‘Glass Molded aspherical’ elements XGM — ‘eXpanded Glass Molded aspherical’ elements LD — ‘Low Dispersion’
Tamron
Type of lens
cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens. The asphere's more complex surface profile can
Aspheric_lens
Photographic lens
The Samyang 85mm f/1.4 IF Aspherical is Samyang's 35mm format moderate telephoto prime lens for portraiture. The Samyang 85mm supports most SLR mounts
Samyang 85mm f/1.4 IF Aspherical
Samyang_85mm_f/1.4_IF_Aspherical
p\colon E\to B} is any covering map, then E is aspherical if and only if B is aspherical.) Each aspherical space X is, by definition, an Eilenberg–MacLane
Aspherical_space
Photographic lens
The Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical (IF) MACRO is an interchangeable superzoom camera lens for Canon EF-S and Nikon F APS-C bodies
Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical (IF) MACRO
Tamron_AF_18-270mm_F/3.5-6.3_Di_II_VC_LD_Aspherical_(IF)_MACRO
Photographic lens
of a filter in the front. The lens contains one glass aspherical element and one hybrid aspherical element. It is also sold under a number of different
Samyang 14mm f/2.8 IF ED UMC Aspherical
Samyang_14mm_f/2.8_IF_ED_UMC_Aspherical
R_{g}^{2}=(\lambda _{x}^{2}+\lambda _{y}^{2}+\lambda _{z}^{2})} The asphericity b {\displaystyle b} is defined by b = d e f λ z 2 − 1 2 ( λ x 2 +
Gyration_tensor
light. Work on aspherical lens surfaces at Leica began as early as 1957, and a prototype Summaron 35mm f/2.8 ASPH featuring two aspherical surfaces was
Noctilux
Standard lens mount on the Canon
August 2024. "FD 55mm f/1.2 S.S.C. Aspherical". Canon Camera Museum. Retrieved 20 August 2024. "FD 85mm f/1.2 Aspherical". Canon Camera Museum. Retrieved
Canon_FD_lens_mount
homeomorphism. Since aspherical manifolds with isomorphic fundamental groups are homotopy equivalent, the Borel conjecture implies that aspherical closed manifolds
Borel_conjecture
American mathematician (born 1949)
on aspherical spaces and co-authored a foundational paper on toric topology. Davis is most known for his seminal works in the area of aspherical manifolds
Michael_W._Davis
Camera lens
Extra-low Dispersion (ED) glass elements to reduce chromatic aberration Aspherical elements to reduce distortion Super integrated coating (SIC) to reduce
Nikon AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED
Nikon_AF-S_DX_Zoom-Nikkor_12-24mm_f/4G_IF-ED
Type of lens to improve visual perception
well as whether a best spherical form of lens or an optically optimal aspherical form was used in the manufacture of the lens. Generally, the best spherical
Corrective_lens
On constructing an aspherical CW complex whose fundamental group is a given group
{\displaystyle 3\leq \operatorname {cd} (G)\leq n} ), one can construct an aspherical CW complex X of dimension n whose fundamental group is G. The theorem
Eilenberg–Ganea_theorem
Optical device used with a camera to create images
glass.[citation needed] Plastics allow the manufacturing of strongly aspherical lens elements which are difficult or impossible to manufacture in glass
Camera_lens
Optical aberration
important effect, because spherical shapes are much easier to produce than aspherical ones. In many cases, it is cheaper to use multiple spherical elements
Spherical_aberration
Photographic lens
The Samyang 8mm F3.5 Aspherical IF MC Fisheye is an interchangeable camera lens by Samyang. http://www.dpreview.com/products/samyang/lenses/samyang_8_3p5/specifications
Samyang 8mm F3.5 Aspherical IF MC Fisheye
Samyang_8mm_F3.5_Aspherical_IF_MC_Fisheye
Photographic lens
lens) 16 elements in 13 groups (including three ED, one aspherical ED glass, three aspherical lens elements, elements with Nano Crystal Coat and ARNEO
Nikon Nikkor Z 24-120 mm f/4 S
Nikon_Nikkor_Z_24-120_mm_f/4_S
Vehicle wing mirror
permit the driver-side mirror to have a planar, convex, or aspheric surface; an aspheric section is often combined with a larger convex section, and
Side-view_mirror
two-dimensional aspherical CW complex is aspherical. A group presentation G = ( S ∣ R ) {\displaystyle G=(S\mid R)} is called aspherical if the two-dimensional
Whitehead_conjecture
SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] (model A16NII) Tamron SP AF 17-50mm f/2.8 XR Di II VC LD Aspherical [IF] (model B005NII) Tamron SP 24-70mm
List of Nikon F-mount lenses with integrated autofocus motor
List_of_Nikon_F-mount_lenses_with_integrated_autofocus_motor
Photographic products manufactured by Cosina
Wide-Heliar Aspherical". Cosina Voigtländer. Retrieved 2024-03-12. "Nokton Aspherical". Cosina Voigtländer. Retrieved 2024-03-12. "Nokton Aspherical". Cosina
Cosina_Voigtländer
Photographic lens
focusing and internal zooming, as well as two SLD elements and three aspherical lenses. List of Nikon compatible lenses with integrated autofocus-motor
Sigma 18-50mm f/2.8-4.5 DC OS HSM lens
Sigma_18-50mm_f/2.8-4.5_DC_OS_HSM_lens
Photographic lens
Compared to its predecessor, the Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical (IF) MACRO, it is considerably reduced in size and features an ultrasonic
Tamron 18-270mm F/3.5-6.3 Di II VC PZD
Tamron_18-270mm_F/3.5-6.3_Di_II_VC_PZD
Japanese camera and camera lens manufacturer
for MILCs can be converted to Micro Four Thirds or Sony E-mount. ASP — Aspherical lens elements APO — Apochromatic lens element(s), originally for "Advanced
Sigma_Corporation
Photographic lens
components are extreme aspherical elements for chromatic aberration reduction and better resolution results, three aspherical elements, two extra-low
Sony_FE_24-70mm_F2.8_GM_II
Photographic lens
focus ring 19 elements in 15 groups (including 2 ED glass, 1 aspherical ED glass and 2 aspherical lens elements, elements with ARNEO coat, and a fluorine-coated
Nikon Nikkor Z 24-200 mm f/4-6.3 VR
Nikon_Nikkor_Z_24-200_mm_f/4-6.3_VR
Canon DSLR EF mount lens
with zooming. The lens uses a six-blade aperture, and contains a single aspherical (molded, not ground) lens. Closest focusing distance is approximately
Canon_EF_28-135mm_lens
Optical surfaces with non-spherical profiles, such as the surfaces of aspheric lenses, are typically designed such that their sag is described by the
Sagitta_(optics)
Phenomenon in zoom lenses
lens. Some lenses, such as the Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] and Canon EF-S 18-135mm f/3.5-5.6 IS STM, have a zoom lock to stop
Zoom_creep
Photographic lens
1971. It was the first lens for any 35mm SLR system to incorporate an aspherical element. The lens was manufactured until 1980. The FD 55mm ƒ/1.2 AL uses
Canon_FD_55mm_f/1.2_AL
Japanese optical equipment manufacturer
mounts. In 1991, it started to produce glass molded aspheric lenses, and in 1996 plastic molded aspherical lenses. Cosina began producing digital cameras in
Cosina
Photographic lens
elements, one is of Canon's Super Ultra-Low Dispersion glass and three are aspherical elements. The 10–22 is considered to have good image quality (sharp and
Canon_EF-S_10–22mm_lens
Final polishing of an optical surface
converting the smooth spherical mirror produced by earlier stages into the aspherical or parabolic shapes needed to form the correct image. It is done by applying
Figuring
Humorous concept in scientific models
galactic dark-matter haloes was titled "Milking the spherical cow – on aspherical dynamics in spherical coordinates". References to the joke appear even
Spherical_cow
Photographic lens
1.7 times normal focal length has 14 lenses in 11 groups, two of them aspheric and another with extremely low dispersion. The front lens is made of extremely
Nocticron
Photographic lens
Extra-low Dispersion (ED) glass elements to reduce chromatic aberration Aspherical elements to reduce distortion Super integrated coating (SIC) to reduce
Nikon AF-S DX Zoom-Nikkor 10-24mm f/3.5-4.5G ED
Nikon_AF-S_DX_Zoom-Nikkor_10-24mm_f/3.5-4.5G_ED
Mirrorless camera lens mount
com". Viltrox.com (in Chinese). Retrieved 2022-02-07. "NOKTON 40mm F1.2 Aspherical - 株式会社コシナ". 株式会社コシナ - (in Japanese). 2023-12-15. Retrieved 2024-03-17
Canon_RF_lens_mount
Clouds occurring in the stratosphere in high-latitude regions
way which increases ozone depletion. Type Ia clouds consist of large, aspherical particles, consisting of nitric acid trihydrate (NAT). Type Ib clouds
Polar_stratospheric_cloud
Smartphone by Nokia
significant advantage of making it possible to use extreme aspheric shaped lens elements. 5 all-aspherical lens elements are used, making it possible to increase
Nokia_808_PureView
Photographic lens
integrated autofocus-motor Sigma Corporation (2003). "12-24mm F4.5-5.6 EX DG ASPHERICAL HSM". Archived from the original on August 5, 2009. Retrieved 2009-08-21
Sigma_12-24mm_f/4.5-5.6_lens
f/2 Septon Aspherical (2026-02) 40mm f/2.8 Heliar 40mm f/1.2 Nokton (announced 2017–02) 50mm f/1 Aspherical (2024) 50mm f/1.2 Nokton Aspherical (announced
List of third-party Sony E-mount lenses
List_of_third-party_Sony_E-mount_lenses
Photographic lens
kit with other Nikon cameras. Lens construction includes one composite aspherical and three Extra-low Dispersion (ED) elements to correct distortion and
Nikon AF-S DX Zoom-Nikkor 18-70mm f/3.5-4.5G ED-IF
Nikon_AF-S_DX_Zoom-Nikkor_18-70mm_f/3.5-4.5G_ED-IF
24 mathematical problems stated in 1982
does every aspherical or hyperbolic 3-manifold have a finite Haken cover? Solved by Ian Agol. 2012 17th Having 3-manifold that is aspherical, does it have
Thurston's_24_questions
Astrophotographic telescope
optical components are an easy-to-make spherical primary mirror, and an aspherical correcting lens, known as a Schmidt corrector plate, located at the center
Schmidt_camera
Chinese virtual reality company
42ppd. The panels are QLED type and the lenses are interchangeable optical aspheric glass. The headset was announced to use inside-out tracking and optional
Pimax
Photographic lens
and macro focusing capability to a reproduction ratio of 1:2.7. It uses aspherical lens elements. Though intended for 35mm film and full-frame digital SLRs
Sigma_24mm_f/1.8_EX_DG_lens
the original on 2015-02-06. Retrieved 2015-01-29. "NOKTON 10.5mm F0.95 Aspherical". Cosina Voigtländer. 19 September 2021. Retrieved 12 January 2024. "Toy
List of Micro Four Thirds lenses
List_of_Micro_Four_Thirds_lenses
Type of eye defect
can provide a wider field of vision and fewer artifacts than even double aspheric eyeglass lenses. Refractive surgery aims to permanently change the shape
Astigmatism
sign conjecture but which does not refer to Riemannian geometry at all. Aspherical manifolds are connected manifolds for which all higher homotopy groups
Hopf_conjecture
Zoom which maintains focus as the focal length changes (parfocal lens) Aspherical lens with fast and large lens aperture Servomotor control of zoom, focus
Broadcast_lens
Camera model
(37 – 185 mm equivalent in 35 mm photography) 9 Lenses in 7 Groups 3 Aspherical Lenses Zoom 5x optical zoom 4x digital zoom Image sensor 8 Megapixels
Olympus_FE-310
Family of camera lens
this lens contains 11 lens elements, including two ground and polished aspherical lens elements. This lens uses a floating front extension focusing system
Canon_EF_50mm_lens
Brand of digital cameras made by Panasonic
ZX 1, DMC - FP 8, DMC - FZ 38) The world's thinnest 0.3 mm ultra-thin aspheric glass lens is mounted, achieving the thinnest in Lumix history (DMC-FX
Lumix
Canon SLR EF mount prime lens
contains 11 lens elements in 9 groups, including one ground and polished aspherical lens element. It uses a rear floating focusing system, powered by a ring
Canon_EF_35mm_lens
Smartphone by Nokia
Construction: Six elements in one group. All lens surfaces are aspherical, partly extreme aspheric, one high refractive index, low-dispersion glass mould lens
Nokia_Lumia_1020
Photographic lens
varies from f/3.5 at 24mm to f/6.3 at 240mm. The 24-240 includes five aspherical lens elements and one ED lens. The front element does not rotate but uses
Sony_FE_24-240mm_F3.5-6.3_OSS
Type of reflecting telescope
The Schwarzschild telescope is a reflecting telescope with two aspherical concave mirrors. It was developed by Karl Schwarzschild and named after him.
Schwarzschild_telescope
Maximum mass of a stable white dwarf star
problem of the Champagne Supernova was considering it the result of an aspherical explosion of a white dwarf. However, spectropolarimetric observations
Chandrasekhar_limit
Photographic lens
manual focus ring 14 elements in 11 groups (including 1 aspherical ED glass, 1 ED glass, 3 aspherical lens elements, elements with Nano Crystal Coat, and
Nikon_Nikkor_Z_24-70_mm_f/4_S
Photographic lens for Nikon Z mount
focus ring 21 elements in 15 groups (including four ED glass and three aspherical lens elements) Nine-blade rounded diaphragm Vibration Reduction (VR) optical
Nikon Nikkor Z 28-400 mm f/4-8 VR
Nikon_Nikkor_Z_28-400_mm_f/4-8_VR
Series of camera lens mounts made by Pentax
Di II LD AF SP Aspherical (IF) Tamron 17–50 mm f/2.8 SP AF XR Di-II LD Aspherical IF Tamron 18–250 mm f/3.5-6.3 AF Di-II LD Aspherical IF Macro Tamron
Pentax_K-mount
Camera line by Nikon
1 High Refractive Index (HRI, >2), 3 Extra-low Dispersion (ED) and 2 aspherical lenses, Super Integrated Coating (SIC), internal focusing (IF) with world's
Nikon_1_series
Photographic lens
focus-by-wire manual focus ring 25 elements in 17 groups (including 6 ED glass, 1 aspherical lens element and a fluorine-coated front lens element) 9-blade rounded
Nikon Nikkor Z 180-600 mm f/5.6-6.3 VR
Nikon_Nikkor_Z_180-600_mm_f/5.6-6.3_VR
Photographic lens
focus-by-wire manual focus ring 21 elements in 18 groups (including 6 ED glass, 2 aspherical, 1 fluorite, and 1 short-wavelength refractive (SR) lens elements, elements
Nikon Nikkor Z 70-200 mm f/2.8 VR S
Nikon_Nikkor_Z_70-200_mm_f/2.8_VR_S
Photographic lens design
design. They are for example a 5-elements-in-1-group, aperture-less all-aspherical lens, as in the Nokia 808 Pureview and Nokia Lumia 800 camera. Vario-Tessar
Tessar
Measure of earthquake size
2019 Dziewonski, Adam M.; Gilbert, Freeman (1976), "The effect of small aspherical perturbations on travel times and a re-examination of the corrections
Moment_magnitude_scale
Corrective lens used in eyeglasses
(Ultrifo) sold by "Gowlland of Montreal". This was based on an arrangement of aspherical surfaces. The Carl Zeiss AG & Varilux lenses were the first PAL of modern
Progressive_lens
used Independent Atom Model, the Hansen-Coppens Formalism presents an aspherical approach, allowing one to model the electron distribution around a nucleus
Multipole_density_formalism
Genus of atmospheric cloud
Cirrus clouds only form glories when the constituent ice crystals are aspherical; researchers suggest that the ice crystals must be between 0.009 millimeters
Cirrus_cloud
Photographic lens
to remove chromatic aberrations (denotes the "ED" on the lens body). Aspherical elements to remove other kinds of aberrations that may occur. Lens elements
Nikon AF-S DX Zoom-Nikkor 18-300mm f/3.5-5.6G ED VR
Nikon_AF-S_DX_Zoom-Nikkor_18-300mm_f/3.5-5.6G_ED_VR
Photographic lens
Retrieved 21 August 2009. Arkadiusz Olech (12 May 2009). "Samyang 8 mm f/3.5 Aspherical IF MC Fish-eye review". www.lenstip.com. Archived from the original on
Sigma 10mm f/2.8 EX DC Fisheye HSM lens
Sigma_10mm_f/2.8_EX_DC_Fisheye_HSM_lens
Photographic lens
uses 10 elements in 9 groups, arranged as a double Gauss type, with one aspherical, three extra-low dispersion (ED), and one super ED element. It was announced
Panasonic Leica D Summilux Asph 25mm F1.4
Panasonic_Leica_D_Summilux_Asph_25mm_F1.4
Wide-angle photographic lens with strong barrel distortion
orthographic projection, which was also the first lens to feature an aspherical element 6 mm f/5.6 (1969), the first fisheye to feature a 220° field of
Fisheye_lens
Camera lens manufactured by Canon
synthetic fluorite, Super UD and UD glass, and large-aperture high-precision aspherical lenses, only lenses that perform to the highest photographic standards
Canon_L_lens
Standard lens mount on the Canon EOS family
glass element, and/or certain types of aspherical elements. (Note that a number of non-L lenses also use aspherical elements, and at least one non-L lens
Canon_EF_lens_mount
Camera model
times zoom capability of standard digital cameras. The lens is an Olympus aspherical glass zoom lens 5.9–59 mm. The 10x zoom is equivalent to 38–380 mm in
Olympus_C-730UZ
Camera model
lens Panasonic Lumix G 14–42 mm ƒ/3.5-5.6 Aspheric O.I.S. Panasonic Lumix GX Vario PZ 14–42 mm ƒ/3.5-5.6 Aspheric Power O.I.S. Panasonic Lumix G Vario 14–45 mm
Panasonic_Lumix_DMC-GH2
Tool to classify manifolds within a homotopy type in dim > 4
}\mathbb {Z} \oplus \oplus _{i=1}^{\lfloor n/2\rfloor }\mathbb {Z} _{2}} An aspherical n {\displaystyle n} -dimensional manifold X {\displaystyle X} is an n
Surgery_exact_sequence
Particular mapping that projects a sphere onto a plane
Fisheye CS Archived 2011-06-29 at the Wayback Machine "Samyang 8 mm f/3.5 Aspherical IF MC Fish-eye". lenstip.com. Retrieved 2011-07-07. German et al. (2007)
Stereographic_projection
American manufacturer, distributor, and marketer of photographic and optical equipment
Vivitar 55mm ƒ/2.8 Macro (made by Komine) Vivitar Series 1 85mm ƒ/1.4 Aspherical IF (made by Samyang, released in 2009) Vivitar 85mm ƒ/1.8 T-mount Vivitar
Vivitar
2007 compilation album by various artists
"Ulver" are swapped. Oleg Paschenko – cover art Ivan 'Fever' (head of Aspherical Asphyxia) – management, mixing of tracks 4 and 10 on disc 2, final mastering
My Own Wolf: A New Approach to Ulver
My_Own_Wolf:_A_New_Approach_to_Ulver
Photographic lens
focus-by-wire manual focus ring 14 elements in 12 groups (including 4 ED glass, 4 aspherical, elements with Nano Crystal Coat and a fluorine-coated front lens element)
Nikon_Nikkor_Z_14-30_mm_f/4_S
Series of camera lenses manufactured by Canon
this lens contains 8 lens elements, including one ground and polished aspherical lens element, which makes this lens extremely sharp when stopped down
Canon_EF_85mm_lens
Camera lens
chromatic aberration (available only on the two AF-S versions without VR) Two aspherical lens elements (available only on the two AF-P versions) Easy variant of
Nikon AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G
Nikon_AF-S_DX_Zoom-Nikkor_18-55mm_f/3.5-5.6G
Photographic lens
focus-by-wire manual focus ring 17 elements in 15 groups (including 2 ED glass, 3 aspherical lens elements, ARNEO Coat and Nano Crystal Coat elements) 9-blade rounded
Nikon_Nikkor_Z_50_mm_f/1.2_S
United States thermonuclear warhead
primaries.[verification needed] From 1992, China began testing similar aspherical primary devices. Los Alamos nuclear primary designer John Richter believed
W88
Camera model
lens. The Leica 'DC VARIO-ELMARIT 1:2.8-4.4 / 4.8-86.4 ASPH.' lens is a aspherical telescoping lens. Both models share similarities with the specs, differing
Panasonic_Lumix_DMC-FZ38
Optical device
combining two or three lens elements. A single-element aplanatic lens is an aspheric lens whose surfaces are surfaces of revolution of a cartesian oval. Pedrotti
Aplanatic_lens
Durasoft 3, Freshlook, Wildeyes Methafilcon A 55 17.9-37.6 Biocurve Advanced Aspheric, Biocurve 1-Day, Biocurve Toric & Sphere, C-Vue 1-Day ASV, C-Vue 55, Edge
List of soft contact lens materials
List_of_soft_contact_lens_materials
Nikon lens
focus-by-wire manual focus ring 9 elements in 8 groups (including 2 aspherical lens elements) 7-blade rounded diaphragm One customizable control ring
Nikon_Nikkor_Z_DX_24_mm_f/1.7
Optical lens used to increase focal length
generate chromatic aberration, and spherical aberration if the lens is not aspheric. More common configurations use three or more elements for achromatic correction
Barlow_lens
Smallest unit of a chemical element
outer shell electrons, as shown by group-theoretical considerations. Aspherical deviations might be elicited for instance in crystals, where large crystal-electrical
Atom
Pair of equations describing black holes
into it, accretion of matter surrounding it, the last stage of slightly aspherical collapse, the last stage of a binary merger etc. Unlike the reflection
Regge–Wheeler–Zerilli equations
Regge–Wheeler–Zerilli_equations
Three dimensional analogue of uniformization conjecture
Maillot, S.; Porti, J. (2007). "Weak collapsing and geometrization of aspherical 3-manifolds". arXiv:0706.2065 [math.GT]. Bessieres, L.; Besson, G.; Boileau
Geometrization_conjecture
Instrument to measuare radius of curvature
well-known result for the spherometer and also leads to a scheme to study aspherical surfaces. A related device is the cylindrometer (also known as cylindro-spherometer
Spherometer
Lens mount
consisting of: E: number of elements G: number of cemented groups A: number of aspherical elements ED: number of "extra-low dispersion" elements XHR: number of
Samsung_NX-mount
Photographic lens
assembly from changing sizes during focusing so it can remain compact. Aspherical lens elements to remove other types of aberrations that may occur. Nikon's
Nikon AF-S DX Zoom-Nikkor 18-300mm f/3.5-6.3G ED VR
Nikon_AF-S_DX_Zoom-Nikkor_18-300mm_f/3.5-6.3G_ED_VR
frames in terms of both dimensions and weight. These glasses included aspheric lenses, which are compatible with plastic materials and allow for injection
Everysight
ASPHERICAL
ASPHERICAL
ASPHERICAL
ASPHERICAL
Boy/Male
Muslim
Everlasting
Girl/Female
German, Hebrew
Pledge; Hostage; Cut Stone
Boy/Male
Arabic
Awsome
Surname or Lastname
English
English : unexplained; probably a habitational name from a lost or unidentified place. Neither the place name nor the surname are found in current British records. Compare Stinchfield.
Girl/Female
German
Will-helmet
Girl/Female
Czechoslovakian, Danish, German
Fortunate Heroine; Wealthy
Boy/Male
Arabic, Gujarati, Hindu, Indian, Kannada, Muslim
Magnificent
Boy/Male
Indian, Telugu
Place Name
Boy/Male
American, Hebrew, Hindu, Indian
God is My Judge
Female
French
Feminine form of French Iréné, IRÉNÉE means "peaceful."
ASPHERICAL
ASPHERICAL
ASPHERICAL
ASPHERICAL
ASPHERICAL