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Frequently Asked Questions on Optics Part 1

From Edmund Optics Inc.
 

 
Each glass type has its own set of specific characteristics. We have selected the best glass types available to produce optimal results for each individual lens design. This is the most significant in the design of achromat lenses since they use two different glasses together to help reduce optical errors
Products & Services
Fresnel lenses resemble a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and not spherical. Search by Specification | Learn more about Fresnel Lenses
Spherical lenses, also known as singlets, are transparent optical components consisting of one or more pieces of optical glass with surfaces so curved that they serve to converge or diverge the transmitted rays from an object, thus forming a real or virtual image of that object.  This area includes micro spherical lenses as well. Search by Specification | Learn more about Spherical Lenses
Optical lenses are transparent components made from optical-quality materials and curved to converge or diverge transmitted rays from an object. These rays then form a real or virtual image of the object.  This area includes micro lenses. Search by Specification | Learn more about Optical Lenses
A diffraction grating uses a substrate with parallel grooves to disperse light into its spectra. Eschelles are included in this area. Search by Specification | Learn more about Diffraction Gratings
Optical polarizers are optical devices that can transform unpolarized or natural light into polarized light, usually by the selective transmission of polarized rays. Search by Specification | Learn more about Optical Polarizers
Product Announcements
Ross Optical Industries - Standard Achromats
These lenses consist of two optical elements, usually of crown and flint glass types, cemented together to form an achromatic doublet. Most often, the crown lens is a biconvex positive lens. (read more)
IRD Glass - Cylindrical Lens - Optics
IRD specializes in the manufacture of custom optical components made from a wide range of raw materials. They excel at holding very precise tolerances to help customers solve problems resulting from... (read more)
ELCAN Optical Technologies - Academy Award Winning Panavision Lenses by ELCAN
What do movies, medicine, the military and mass communications have in common? They all depend on "Optics by ELCAN" and the world-renowned optical expertise at ELCAN Optical Technologies in Midland. (read more)
 
Topics of Interest
Each glass type has its own set of specific characteristics. We have selected the best glass types available to produce optimal results for each individual lens design. This is the most significant in... (Read More)
4.10.2 Decentered Microlens Arrays An alternate to phased array beam steering is the decentering of a group of lenses with respect to a matching lens group. Although the fundamental beam steering... (Read More)
2 OPTICAL COMPONENTS   2.1 INTRODUCTION DWDM systems require specialized optical and photonic components that are based on light-matter and light-matter-light interactions as well as on the... (Read More)
An achromatic lens consists of two optical components cemented together, usually a positive low-index (crown) element and a negative high-index (flint) element. The additional design freedom provided... (Read More)
Absorption: The portion of optical attenuation in an optical fiber resulting from the conversion of optical power to heat; caused by impurities such as hydroxyl ions in the fiber. A/B Switch: A... (Read More)
See more product announcements for Fresnel Lenses
Bandpass, Longpass and Shortpass Filters

Bandpass, Longpass and Shortpass Filters
American Precision Glass Corp.


Glass Tubes

Glass Tubes
IRD Glass


Optical bandpass Filter

Optical bandpass Filter
Vision Light Tech


11 See more product announcements for Fresnel Lenses