We produce high-quality functional lenses such as polarized lenses and photochromic lenses in-house in Japan.
At Sho-Yu Co., Ltd., we manufacture glass polarizing lenses, photochromic lenses, and photochromic polarizing lenses that are in high demand for activities such as driving. We also supply well-known overseas brands, and our unique technology, developed over many years, involves the use of epoxy adhesives for polarizing lens films. Our technology for preventing the delamination of the world's only polarizing film and its optical properties are among the best in the world. These glass lenses are also used in high-end video cameras, cameras, telescopes, binoculars, and other optical equipment. 【Features】 ○ Polarizing Glass Lenses → Surface lenses with a thickness of 0.85 mm, finished with mirror polishing, sandwiching a polarizing film with a polarization degree of 99% and a UV-cut lens that cuts 99.9% of ultraviolet rays. ○ Photochromic Polarizing Glass Lenses → Adding a "photochromic function" that adjusts brightness according to the amount of ultraviolet light to the polarizing lenses. ○ Special Lens Processing → Bending processing of PVA polarizing film. → Bonding processing of polarizing lenses. For more details, please contact us or download the catalog.
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【Features】 [Original Polarized Lens "BLOCK X"] ○ UV (ultraviolet) cut glass lens (made by Corning) + polarized (PVA) film + mirror-polished 0.85mm clear glass ○ Natural light (horizontal wavelength light) is transmitted ○ Cuts light from above, such as sunlight ○ Cuts reflected light and scattered light from the ground and water surface ○ Cuts 99.9% of ultraviolet rays that can damage the eyes [Photochromic Polarized Glass Lens] ○ A groundbreaking polarized lens that automatically adjusts the optimal transmittance (brightness of the lens) according to various weather changes and situations ○ Front lens: Photochromic lens that automatically changes color density based on the amount of ultraviolet light ○ Intermediate: PVA (polarized) film ○ Back lens: Lens that cuts 99.9% of ultraviolet rays [PVA Polarized Film Bending Process] ○ Bending PVA film into a bowl shape in a controlled indoor environment with humidity and temperature management [Polarized Lens Laminating Process] ○ Bonding front tempered glass lens, polarized film, and back glass (UV cut) lens using epoxy resin ● For more details, please contact us or download the catalog.
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At Sho-Yu Co., Ltd., we produce high-quality functional lenses such as glass polarized lenses and photochromic lenses, which are in high demand for activities like fishing and driving, all manufactured in-house in Japan (we also offer processing for glass lenses). Additionally, we manufacture all types of eyewear frames, from sunglasses to regular glasses, achieving high design quality and short delivery times by consistently utilizing 3D CAD from planning to production (OEM services available). Furthermore, we accommodate special coatings such as baked acrylic painting for metal frames, two-component urethane painting for plastic, as well as soft-touch finishes, leather-like coatings, and wood grain coatings (heat transfer printing is also available). For planning, manufacturing, and sales of sunglasses and glasses, as well as the production of polarized lenses, please leave it to Sho-Yu Co., Ltd.