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Supplier: Tele Vue Optics, Inc.
Description: Specifications TV - 76TypeAPO (Doublet) Refractor (Elements/Groups: 2/1) Objective (mm) 76 Focal Length (mm) 480 Focal Ratio (f/#) 6.3 Drawtube/Focuser2-in ch, Focusmate dual-speed rack/pinion Length OTA (inch) 14.5 Length with diagonal (inch) 17.4 (with 2
- Aperture: 76 mm
- Focal Length: 480 mm
- Focal Ratio (f-number): 6.3
- Magnification: 200 X
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Supplier: Tele Vue Optics, Inc.
Description: Specifications TV - 85TypeAPO (Doublet) Refractor (Elements/Groups: 2/1) Objective (mm) 85 Focal Length (mm) 600 Focal Ratio (f/#) 7 Drawtube/Focuser2-in ch, Focusmate dual-speed rack/pinion Length OTA (inch) 19 Length with diagonal (inch) 21.9 (with 2-inch
- Aperture: 85 mm
- Focal Length: 600 mm
- Focal Ratio (f-number): 7
- Magnification: 225 X
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Supplier: Tele Vue Optics, Inc.
Description: Specifications TV - 60isTypeAPO (Doublet) Refractor (Elements/Groups: 2/1) Objective (mm) 60 Focal Length (mm) 360 Focal Ratio (f/#) 6 Drawtube/Focuser2-in ch, Focusmate dual-speed rack/pinion Length OTA (inch) 10 Length with diagonal (inch) 11.5 (with
- Aperture: 60 mm
- Focal Length: 360 mm
- Focal Ratio (f-number): 6
- Magnification: 150 X
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Supplier: Tele Vue Optics, Inc.
Description: Specifications TV - NP101TypeAPO (Nagler-Petzval) Refractor (Elements/Groups: 4/2) Objective (mm) 101 Focal Length (mm) 540 Focal Ratio (f/#) 5.4 Drawtube/Focuser2-in ch, rack/pinion Length OTA (inch) 26.1 Length with diagonal (inch) 29 (with 2-inch
- Aperture: 101 mm
- Focal Length: 540 mm
- Focal Ratio (f-number): 5.4
- Magnification: 250 X
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Supplier: Newport MKS
Description: refractive optics, where refractive index varies with wavelength. Consequently reflective objectives can have excellent optical performance across an extremely broad wavelength range limited only by mirror reflectance. The reflective surfaces are broadband coated with aluminum
- Lens Type: Objective Lens
- Magnification: 15 to 36 X
- Numerical Aperture: 0.4000 to 0.5200 NA
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Supplier: Carson Optical, Inc.
Description: The SkyRunner™ Short-Tube Wide-Angle Telescope is a lightweight, refractor type Telescope that is rugged, compact and easy to use. It has a 70mm objective lens with a 350mm focal length. The SkyRunner™ is equipped with two removable Kellner Eyepieces (6mm/25mm) and
- Aperture: 70 mm
- Focal Length: 350 mm
- Magnification: 14 to 117 X
- Weight: 3.05 lbs
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Supplier: Newport MKS
Description: Reflective optics do not experience chromatic effects associated with refractive optics, where refractive index varies with wavelength. Consequently reflective objectives can have excellent optical performance across an extremely broad wavelength range limited only by mirror
- Lens Type: Other
- Microoptic: Yes
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Supplier: Newport MKS
Description: Reflective optics do not experience chromatic effects associated with refractive optics, where refractive index varies with wavelength. Consequently reflective objectives can have excellent optical performance across an extremely broad wavelength range limited only by mirror
- Lens Type: Other
- Microoptic: Yes
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Supplier: Newport MKS
Description: Reflective optics do not experience chromatic effects associated with refractive optics, where refractive index varies with wavelength. Consequently reflective objectives can have excellent optical performance across an extremely broad wavelength range limited only by mirror
- Focal Length: 160 mm
- Lens Type: Other
- Microoptic: Yes
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Supplier: Shanghai Optics
Description: achromatic lens assembly, the achromat is installed along with any other components. Assemblies that incorporate achromats include microscope objectives and telescopes. The specific design of the lens will depend on the type of correction required by the application. In
- Lens Application: Ultraviolet
- Lens Type: Achromats
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Supplier: Changchun Yutai Optics Co., Ltd.
Description: source: when a plano convex lens is used to collimate a point source, the beam should be incident on a flat surface. 6. Astronomical observation:plano convex lenses can be used to make objective lenses for telescopes to help observe distant objects. 7. Military:
- Surface Flatness: λ/4
- Surface Quality: 40-20 Scratch / Dig
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Supplier: Ross Optical Industries
Description: wavelengths has been corrected. The lenses have been corrected for on-axis spherical aberration as well. Achromatic doublets are used as telescope objectives, eye loupes, magnifying glasses and eyepieces. Achromatic doublets have also been used to focus and manipulate laser
- Antireflection Coating: Yes
- Diameter / Length: 10 mm
- Focal Length: 31.8 mm
- Laser / Heat Resistant: Yes
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them ideal for FTIR spectroscopy and high-precision imaging where aberration-free performance is essential. Refractive Objective Lenses are microscope lenses made of transparent materials like glass. They use (read more)
Browse Microscope Lenses and Objectives Datasheets for Avantier Inc. -
observation:plano convex lenses can be used to make objective lenses for telescopes to help observe distant objects. 7. Military: plano convex lenses can be used for night vision equipment and laser guidance systems. 8. Transport: plano convex lenses can be used to (read more)
Browse Optical Lenses Datasheets for Changchun Yutai Optics Co., Ltd. -
): Abbe number: low (about 95.3), a high dispersion material. Refractive index: low (about 1.43 in the visible range). Transparent range: from UV to IR, especially excellent in the UV region. What are the advantages of triplet achromatic lenses made of CaF2 and fused (read more)
Browse Optical Lenses Datasheets for Changchun Yutai Optics Co., Ltd. -
problematic for high power laser applications, as the resulting energy density and heat at the focal point can deflect light and lead to wavefront errors. A Galilean telescope consists of one lens with a negative focal length (the objective) and another (read more)
Browse Optical Lens Assemblies Datasheets for Avantier Inc. -
Large volume and wide objective lens spacing Imaging Quality Dependent on coating technology Naturally high contrast (read more)
Browse Optical Prisms Datasheets for Changchun Yutai Optics Co., Ltd.
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Adaptive Optics for Vision Science: Principles, Practices, Design, and Applications - Forward
generated an intensive effort to revise methods to. correct vision, with the wavefront sensor providing a much needed yardstick. for measuring the optical performance of spectacles, contact lenses, intraocular. lenses, and refractive surgical procedures. Wavefront sensors offer the. promise of a new
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Absolute calibration of microphones at the audible and ultrasonic frequencies
The device optical darts r6alis6 our laboratories itself pr6sente under your form of a tube in fibro-cement of 2 m6tres of length provided with an objective of astronomical h one spectacle of its extr6mit6s and of an ocu- .
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The Transits of Extrasolar Planets with Moons
adjustments and modifications that had been carried out on the refractor telescope ’s objective lens .
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The growth of technical systems
Thereby, are to distinguish three lines of development (figure 2): reflectors (reflecting telescopes) with specula, lens telescopes ( refractors ) with achromatic lenses as well as reflectors with glass mirrors.
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The Moon in Close-up
Basic optics of a refractor telescope with an achromatic objective lens .
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See the night sky
By lens telescopes or refractors , the lens is mounted forward on the telescopic tube and a lens; by reflecting telescopes or reflectors, a mirror that locates at the back edge of the tube serves as lens.
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200-femtosecond streak camera: development and dynamic measurements
Another important feature of the developed streak camera is the replacement of our long term used (since 1962) high- resolution (40 line pairs/mm) input relay optics consisting of two Helios-44 objective lenses in telescope configuration by the refractor -type imaging system.
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Photometric analysis of the penumbra during the Éclipses of moon
OB and OC are the objective and the eyepiece of a refracting telescope ; DC is the iris diaphragm, darts situ6 the focal plane of the objective, that d61imite the visible field by the observer.
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Grens for a Ritchey-Chretien (R-C) Telescope
Although the new corrector is more than twice as large as the lens in Table 1, it is feasible, being smaller than the secondary mirror and smaller than the objective lenses of some of the old refractor telescopes built in the last …
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Virtual Eye: A sensor based mobile viewer to aid collaborative decision making in virtual environments
Refractor Telescopes use a convex lens as the objective to gather, bend and focus the light at the eyepiece.
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Use Of Chalcogenide Glass In Thermal Infrared Telescopes
To maintain a short overall length all refractor telescope designs were formed around a telephoto objective lens configuration.