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Supplier: Knight Optical Ltd.
Description: to correct spherical aberration and coma as well as for chromatic aberration. Freedom from spherical aberration means that the focal length is independent of aperture. Doublet lenses performance and usages depend on the relative aperture. All but the largest apertures are diffraction-limited on axis
- Lens Type: Achromats
Supplier: Thorlabs, Inc.
Description: Thorlabs offers two scan lenses designed to work in the visible wavelength range. The LSM03-VIS scan for visible imaging applications has an effective focal length of 39 mm, and is optimized for the 400 - 700 nm wavelength range. The CLS-SL scan lens is ideal for point-by-point laser scanning
- Lens Type: Objective Lens
Supplier: Thorlabs, Inc.
Description: application. The mounted aspheres are readily adapted to our SM1 series of lens tubes by using our Aspheric Lens Adapters. Mounted aspheres can be used as a drop-in replacement for multi-element microscope objective by combining the lens with our Microscope Objective Adapter Extension Tube. The Black
- Lens Form: Aspheric Lens
- Lens Application: Infrared
- Materials: Other
- Surface Quality: 80-50 Scratch / Dig
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 a 2x power Barlow
Supplier: Titan Tool Supply, Inc.
Description: an unusual objective lens that magnifies outward in a "V" shaped configuration (fisheye lens). It can be used on holes as small as 3/16" and as big as 5". The whole interior diameter will be in focus at all times. On larger diameters, the instrument would have to be tipped slightly to focus
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-inch, rack/pinion Length OTA (inch) 26.1 Length with diagonal (inch) 29 (with 2-inch diagonal) Weight OTA
- Telescope Type: Refracting
Supplier: Tapeworks Texas, Inc.
Description: compensation is applied at wide-angle focal lengths to eliminate unwanted shaking which is common when walking. Together with the latest development, Powered IS, you'll find an even higher level of compensation for subtle hand movement at the telephoto end of the zoom range. Powered IS can be engaged
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|Part #||Distributor||Manufacturer||Product Category||Description|
|MV501112||Tequipment.Net||View Solutions||Not Provided||10X Metallurgical Objective Lens - 10X Plan achromatic objective, parfocal distance 95mm, working distance 34mm, focal length 21mm, N.A. 0.28. Depth of View:3.5m; Field of View: F2.4mm(F24lens); Resolution: 1m, for DM microscope body.|
|MV501111||Tequipment.Net||View Solutions||Not Provided||5X Metallurgical Objective Lens - 5X Plan achromatic objective, parfocal distance 95mm, working distance 44.5mm, focal length 40mm, N.A. 0.13. Depth of View:14m; Field of View: 4.8mm(24lens); Resolution: 2m, for DM microscope body.|
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Precision Refractive Zoom Lens with Long Focal Length (.pdf)
," are more commonly used with an afocal system, but the terms allow classification of. the lens groups. For example, the focal length is more sensitive to movements of the variator than the compensator. Stop. 199 mm. 76 mm. 2 mm. Image. f - 750 mm. Filter. Objective. Relay. "Eyepiece". Variator. f - 1750
Focusing Objective Theory (.pdf)
Some focusing applications may require a higher degree of aberration correction than can be achieved in single lenses such as Bestforms. Whether correction over larger apertures, several wavelengths or a wider field is needed, it may be necessary to use multi-element lens objective
Focusing Objective Theory
Some focusing applications may require a higher. degree of aberration correction than can be achieved. in single lenses such as Bestforms. Whether correction. over larger apertures, several wavelengths or a. wider field is needed, it may be necessary to use multielement. lens objective
Near Field Imaging of a Laser Diode Using Scanning Method
Newport fiber mounts were. where s is the distance from the source to the lens. used, as shown in figures below. We also tested other. lenses, such as an Olympus PMPlan 100X, a Newport. s' is the distance from the image to the lens. M-20X objective, and a biconvex lens. f is the focal length
Thermal Imaging to Study the Heating Pattern of Wheat in an Industrial Microwave Drier
Several researchers have been using microwaves to dry grain and other agricultural materials. But nonuniformity of heating pattern was observed in different food materials during microwave cooking. The objective of this research was to evaluate the heating pattern of wheat during drying
Adaptive wavefront correction in two-photon microscopy using coherence-gated wavefront sensing
, Germany), motorized translation stage TS1b (MP 285; Sutter Instruments, Novato, CA), blue-green filter F (BG38, 370043; Linos), lens L7 (focal length 2.5 cm, 063021; Linos), photomultiplier tube PMT (R3896; Hamamatsu, Hamamatsu City, Japan), CCD (XC-77; Sony, Tokyo, Japan), group velocity-dispersion
Two-Photon Excited Fluorescence Microscopy
the objective on the right is focusing 800 nm light. from a femtosecond pulsed laser. When the solution is. excited by a one- photon process at 405 nm, fluorescence is. (1). generated everywhere along the optical axis. Upon two-. photon absorption at 800 nm, fluorescence is observed. exclusively at the focal
infrared lasers). Achromatic lens: A usually two-element lens that is corrected for chromatic aberration to bring two specified or distinct wavelengths to a common focal point. Active medium: Collection of atoms capable of undergoing stimulated emission at a given wavelength. Afocal: Literally, "without
Engineering Web Search: Objective Lens Focal Length Top
Lens (optics) - Wikipedia, the free encyclopedia
If the lens is biconvex or plano-convex, a collimated beam of light travelling parallel to the lens axis and passing through the lens will be
Optics - Wikipedia, the free encyclopedia
The Nimrud lens Optics began with the development of lenses by the ancient Egyptians and Mesopotamians.
Schwarzschild Objective: Optipedia, Free optics information...
where N is the index of refraction for the field flattener lens, and f is the focal length of the Schwarzschild objective.
Objectives: Optipedia, Free optics information from SPIE
Telephoto Objective The telephoto objective produces a system focal length
From Lenses To Optical Instruments
INTRODUCTION THE LENS WHICH PRODUCES IMAGES MAGNIFICATION OF A LENS PRODUCING IMAGES DETERMINATION OF THE FOCAL LENGTH FOCAL LENGTH AND DIOPTERS THE
Calculate Objective Parameters
Objective NA Magnification Focal length of Tube Lens [mm Calculate Objective Parameters Author:
Astrophotography Basics: Tech Pub P-150: Getting Started
Pictures of satellites will be better if you use a normal-focal-length lens on your camera because they will include more of the satellite path.
Nikon : CFI60 Optics Overview
of the objective in an infinity optics microscope is obtained using the formula: mo = tube lens focal length (ft)/objective focal length (fo) (Figure