Products/Services for Parfocal Lenses
Lens Holders - (30 companies)
Camera Lenses and Video Lenses - (278 companies)
Optical Lens Assemblies - (144 companies)
No Image AvailableZoom Lenses - (18 companies)
Cylindrical Lenses - (143 companies)
Microscope Lenses and Objectives - (62 companies)
Fresnel Lenses - (36 companies)
Gradient Index Lenses - (12 companies)
Spherical Lenses - (232 companies)
Telecentric Lenses - (20 companies)
Product News for Parfocal Lenses
MVZL - Macro Video Zoom Lens The 6:1 Optem® Macro-Video Zoom Lens (MVZL) is an economical solution for quick and easy parfocal zoom video inspection. Designed to be connected directly to any C-mount video camera, the MVZL covers broad fields-of-view at working distances from 5.5" out to infinity. The MVZL offers a unique "close-up" attachment that allows working distance as close as 5.5 – 11 inches. When the "close-up" lens is removed, the Optem MVZL will function from 11" out to infinity. Features/Advantages... (read more)Browse Camera Lenses and Video Lenses Datasheets for Qioptiq
Piezosystem Jena, Inc.
New Lens Flex-Adapter for MIPOS series: and disassembling due to the Flex-Adapter mechanism. Available Lens Flex Adapter - thread types: W0.8x1/36 ” (RMS), M25x0.75, M26x0.75, M26x1/36 ”, M27x0.75, M32x0.75. Parfocal Spacer Rings for tube extension. Compatible with both standard and inverted microscopes. . For more information on the MIPOS series, please visit http://www.piezosystem.com/products_services or email email@example.com... (read more)Browse Optical Mounts Datasheets for Piezosystem Jena, Inc.
Argyle International, Inc.
Lenses Argyle manufactures a wide variety of lenses. Custom designs including odd shapes, sections, and center holes are standard fare. Finish and accuracy from condenser to laser quality. Diameters from 0.5mm to 200mm. Surface finish to 10-5. Surface quality to 1/8 wave. Custom shapes. Spherical lenses. Cylindrical lenses. Sections and holes. Choose from our extensive Tooling List. _____________________________________________________________________. Click here to download our brochure... (read more)Browse Optical Lenses Datasheets for Argyle International, Inc.
Ross Optical Industries
Cylindrical Lenses A lens having at least one surface that is a portion of a cylinder. Cylindrial lenses focus light along one axis only, thus forming a line image from a parallel incident beam. Typically used in the slit illumination of apertures, or converging the light for a line scan detector as well as stretching a point of light into a line as in a laser level. Ross Optical Industries Management and Employees pledge commitment to Excellence, Conformance to Customers requirements, and Continuous Improvement... (read more)Browse Cylindrical Lenses Datasheets for Ross Optical Industries
Universe Kogaku (America) Inc.
Custom Camera Lenses and Video Lenses Universe offers a full line of C and Cs style CCTV lenses available from stock. All formats, including hard to find 1" optics are here. We only handle premium all-glass lenses, many of our own design and manufacture. We carry many specialty lenses as well, including right angle, pinhole and motor or manual zoom. Please call us to discuss your specific application as we do not list on our website all the products we carry. We also provide filters, step rings, and many adapters to meet your... (read more)Browse Camera Lenses and Video Lenses Datasheets for Universe Kogaku (America) Inc.
Universe Kogaku (America) Inc.
Plastic Lens Mount for CCD Lens Assemblies New Plastic Lens Mount for CCD Lens Assemblies Improves Camera Design and Performance. Universe Kogaku introduces the new BO1 and BO2 Lens Mounts for Universe CCD Lens Assemblies. Applicable for OEM use in security, machine vision, multimedia and related vision products, the mounts fit most popular CCD footprints, and aid in improving camera design, performance, mounting ease and reliability. Both the BO1 and the BO2 measure 18.8mm x 17.4mm, with an internal recess for the CCD of 17.0 x 14.0 x... (read more)Browse Lens Holders Datasheets for Universe Kogaku (America) Inc.
Gurley Precision Instruments
Spherical and Aspherical Optical Lenses Optical Lenses from Gurley are available in standard and custom designs. We provide spherical and aspherical lenses. We also coat all parts in our Troy, NY facility and provide customers with all specrtal traces for your review. Select from our standard line of lenses which include plan-convex, plano-concave, aspherical. Because we stock these lenses, you will benefit from our quick delivery and low prices. Or, send us a drawing and we can fabricate and coat a lens to your specific needs. (read more)Browse Spherical Lenses Datasheets for Gurley Precision Instruments
NET USA, Inc.
Telecentric Lenses for Machine Vision NET USA offers a complete line of Telecentric Lenses and accessories. Telecentric lenses offer parallel main rays to the optical axis. For this reason, telecentric lenses eliminate the perspective error when the distance between object and lens changes. Telecentric lenses are ideal for coaxial illumination. Telecentric lenses are mostly used for accurate measurement and offer low distortion, less shading and high resolution. More than 160 different models are available from NET USA. • slim... (read more)Browse Camera Lenses and Video Lenses Datasheets for NET USA, Inc.
Universe Kogaku (America) Inc.
New UV0928CM Optical Lenses UV0928CM: 9mm F/2.8 Ultraviolet Lens with Focus Lock. Universe Kogaku America adds to its existing line of Quartz lenses, a new 9mm lens for imaging applications in the non-visible light spectrum. This lens comes with a C-Mount, but can be configured to suit any requirement. Learn more about the UV0928CM (read more)Browse Optical Lenses Datasheets for Universe Kogaku (America) Inc.
Intrinsic Crystal Technology Co., Ltd. (ICC)
spherical glass lenses spherical lenses types size from dia5.0mm to dia80.0mm in large quantity. material bk7, uvfs, Stih, SF, Pyrex. plano-convex/concave; bi-convex/concave. coated: vis, NIR, PR, HR. best ability: 10-5, 1/10 lambda, 1 arc min wedge. workers: 80 persons within 5000 square meters. measurement: FUJI, ZyGO,. QC contronl: ISO9001:2008. application; laser scanner lenses, camera lenses, optical instrument, laser diode. (read more)
Engineering Web Search: Parfocal Lenses
Zoom lens - Wikipedia, the free encyclopedia
A true zoom lens, also called a parfocal lens, is one that maintains focus when its focal length changes.
Objective (optics) - Wikipedia, the free encyclopedia
The lenses are typically designed to be parfocal, which means that when one changes from one to another the sample stays in focus.
Nikon Eclipse E800 FAQ
Parfocal distance: 60mm Tube length: 200mm Objective thread: 25mm Parfocal distance 33.6 45 60 Objective thread
Corneal and retinal energy density with various laser beam...
Corneal and retinal energy density with various laser beam delivery systems and contact lenses
Nikon | Technology | CFI60 System
With Infinity Optics, however, there are two objective lenses.
RafCamera, Russian Cameras, Lenses, Microscopes, Accessories
Russian Cameras, Lenses, Microscopes, Accessories Fast Lenses Prime Lenses Sets Zoom Lenses
Image-guided robot-assisted microscope objective lens...
Taipei Item Abstract: There are applications where different objective lenses have to be used for microscope imaging.
How the Light Microscope Works
It houses a set of objective lenses of different magnifications.
Because the objective lenses are parfocal, this knob is all that is required to bring a subject into focus when switching from one objective to