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Spherical lens element
optical glassvisibleprecision

spherical lens element
spherical lens element
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Characteristics

Geometry/curvature
spherical
Material
optical glass
Optical characteristics
visible
Applications
precision, optical
Diameter

Min.: 2.5 mm (0.1 in)

Max.: 300 mm (11.81 in)

Description

Tamron's tests, both in spherical and flat configurations, represent the company's spirit of craftsmanship nurtured over the course of many years. The wide array of test plates serves as solid testament to the quality control put forth at the company's optical element production lines. Master Test Plates A pair of Test Plates constitutes the master standard for curvature and/or perfect flatness. Spherical Test Plates consist of a concave and convex pair, while Flat Test Plates are comprised of three flat plate units. Production Test Plates A set of Test Plates is used for inspection of lens elements at the production line. It is replicated from the master. As the pertinent surface sustains wear and tear and/or damage after a period of use, a precisely replicated replacement is produced from the very same master. est Plates Itemized List This table lists the curvature and curvature precision of master test plates currently owned by Tamron. We also manufacture master test plates, production test plates, and Δh test plates. Note that master test plates manufactured by Tamron are built to levels of precision within the tolerance range shown in the following curvature table. Inquire separately if you wish other specifications.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.