Blog

Beamsplitters: Cube or plate?

All you need to split a beam into two beams is a single partially reflective plane surface, and something to hold it up. That surface can be the first surface of a plate, or the interior diagonal surface of a cube formed by mating two right-angle prisms. In this installment...

High End Production of Plano-Convex Cylindrical Lenses

While a plano-convex spherical lens focuses to a spot, a plano-convex cylindrical lens focuses to a line. In one cross-section it is drawn with two parallel lines, just like a window, and it does no focusing along this axis. In the orthogonal axis it is drawn just like a plano-convex...

Precision Optical Coatings

Almost every precision optical component includes at least one coated surface. Whether a window, mirror, lens, prism, filter, etalon, beamsplitter, waveplate, polarizer, or something else, your component will almost certainly have some type of precision optical coating. Today’s precision optical coatings are made up of multiple thin-film layers – from two up to...

Optical Filter Manufacturers

Most optical filters are plane-parallel items like precision optical windows, except that they select exactly which portion of light to transmit. The remaining light may be reflected, absorbed, or both. Types of filters include neutral density (ND), linear polarizer, short-pass, long-pass, hot or cold, band-pass, line-transmission, and notch filters.  ...

Optic Lens Manufacturer

Lenses are probably the first thing people associate with precision optics – but what kind of lenses? The simplest lenses consist of one piece of glass and are called, appropriately enough, singlets. A singlet has two optical surfaces, surrounded by an edge surface with a protective bevel. Those optical surfaces...

Photonics 101- Understanding Beam Splitters

As the name suggests, a beam splitter refers to an optical device which is used to split or divide a beam of light into two. A beam splitter is usually the cornerstone of most interferometers. Beam splitters are available in various forms. These include cubes, pipes and plates. The most...

The Leading Optical Components Manufacturer in the US

Tower Optical Corporation belongs to the industrial group that is considered optical components manufacturers. The parts supplied by this group are used in research, medical devices, communication, aerospace,  manufacturing, test and measurement devices. This diversity is satisfied by a very flexible staff and a production facility that provides the ability...

Tower Optical announces the new Interferometer Beam Expander

BeamEx1000 beam expander enables measurement of full 6”aperture with industry-standard 4” interferometers. Boynton Beach, FL — Tower Optical announces the availability of a 4”→ 6” Interferometer Beam Expander called the BeamEx1000. This product enables measurement over a full 6”aperture using an industry-standard 4” interferometer. The BeamEx1000 snaps onto a 4”...

Manufacturing High Quality Precision Optics

The business of manufacturing precision optics is unique:   Compared to making auto parts, appliances, batteries – nearly anything you can imagine – the pursuit of manufacturing precision optics presents unique challenges: Tolerances are finer. Surface shapes and finishes are specified in nanometers, dimensions in microns, angles in arc-seconds. Requirements...

Important Tips When Buying Waveplates

Wave plates, also called retarders, are transmissive optical devices which alter the state of polarized light transmitted through them. The most common retardation values are half-wave and quarter-wave.  The half-wave plate is typically used to shift the axis of linear polarized light or switch the handedness of circularly polarized light,...

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