Products & ServicesSee also: Categories | Parts by Number | Technical Articles | Engineering Web Results
Supplier: Knight Optical Ltd.
Description: are designed 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
- Lens Type: Achromats
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/Std. Config (lbs) 9 / 11.3
- Telescope Type: Refracting
Supplier: Tapeworks Texas, Inc.
Description: , it delivers exceptional storage capacity. Recording Full HD 1920 x 1080 video, the VIXIA HF G10 features a Genuine Canon 10x HD Video Lens (35mm equivalent of 30.4mm - 304 mm) with an 8-blade iris for smooth background blur and a dedicated manual focus ring for enhanced control. The VIXIA HF G10 boasts
Find Suppliers by Category Top
Parts by Number for Objective Lens Focal Length Top
|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.|
Conduct Research Top
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
Workstation for Laser Direct-Write Processing (.pdf)
the. While galvos allow greater scanning speeds than a stage, the. back aperture of the objective. This is accomplished using. area they can pattern is limited by the objective's back. two positive lenses with the appropriate focal lengths. At. aperture. On the other hand, the stage total travel distance
Adaptive wavefront correction in two-photon microscopy using coherence-gated wavefront sensing
TS1a (Tritor 102 SG; Piezosystem, Jena, 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
Coherent Anti-Stokes Raman Scattering Microspectrometer
point. What follows. are two convenient methods. The first is simply finding the. CARS signal from a 1 mm thick glass microscope slide. Take. care to ensure that the beams are focused inside the slide. Utilize the maximum available power in the pump and Stokes. beams. Use a 100 mm focal length lens
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
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
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
Name _________________________________ Section ________...
Which lens can magnify the most when used as a magnifying glass, long focal length or short focal length?