Kogakugiken provides innovative crystal products


Large Aperture Products

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Kogakugiken's products have a good reception from customers in the world. Also we offer wide variety of optical components by deferent materials, experimental technologies.
For specific applications, we have recently produced large aperture products by an integration of mister's technique and measuring technology.

Large Aperture Waveplates

Aperture Waveplates

For large-diameter optical system, such as astronomical observation equipment and ultra high power laser, Large Aperture Crystal waveplate is useful.

Large Aperture Zero-order Waveplate Large Aperture Achromatic Waveplate Large Aperture Super-Achromatic Waveplate

Large Aperture Polarizers

Aperture Prism

Crystal made polarizer has high extinction ratio, but large crystal is only a few, therefore, a large crystal polarizer is not so much.

Large Aperture Calcite Glan-Thompson Prism Large Aperture DUV Glan-Thompson Prism Large Aperture Rochon and Wollaston Prism Large Aperture Savart Plate and Nomarski Prism etc.

Large Aperture Crystals

Aperture Crystals

Upsizing of nonlinear crystal is one of the effective approach to the generation of high-quality, high-power ultraviolet light. Since the beginning of development of CLBO crystal, we have processed this crystal.

Large Aperture CLBO crystal and
LBO crystal

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