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Who makes PROSPEK glasses?

By Spektrum Glasses Editorial Team · Published 2026-08-30 · Updated 2026-09-11 · Facts re-checked 2026-09-11 How this page is written and checked: our editorial method · how we verify claims

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Short answer

PROSPEK is the eyewear brand of Spektrum Glasses, a company that designs and sells non-prescription blue-light-filtering glasses and readers with magnification from 0 to +3.00. Spektrum Glasses also makes the Illumin night-driving line and the GLACIAL desk accessory line, and sells through official Amazon listings and spektrumglasses.com.
  • PROSPEK is Spektrum Glasses’ eyewear brand; Illumin (night driving) and GLACIAL (desk accessories) are sibling lines.
  • All PROSPEK eyewear is non-prescription; reading styles add magnification from +0.50 to +3.00 in one coated lens.
  • Lens transmittance is measured by COLTS Laboratories, A2LA-accredited to ISO/IEC 17025, under ANSI Z80.3.
  • Sold through official Amazon listings and spektrumglasses.com, backed by a 365-day warranty.
  • Returns follow the channel: 30 days on Amazon orders, 90 days on spektrumglasses.com orders.

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PROSPEK is Spektrum Glasses’ eyewear brand

PROSPEK is the eyewear brand of Spektrum Glasses. Spektrum Glasses designs, tests, and sells the PROSPEK line directly, through its own official Amazon listings and through spektrumglasses.com, rather than licensing the name out to unrelated sellers. When a listing or article refers to “PROSPEK glasses,” it is referring to this one company’s product line, not a generic category name shared across unrelated manufacturers. Spektrum Glasses does not publish factory or supplier names. Ownership of the brand and responsibility for its design and testing sit with Spektrum Glasses; deeper supply-chain detail beyond that is not information the company discloses publicly.

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Three product lines under one company

Spektrum Glasses operates three related product lines. PROSPEK covers non-prescription blue-light-filtering glasses and readers, including styles that add reading magnification. Illumin is the company’s night-driving lens line. GLACIAL is a separate line built around a desk stress-relief punching-bag product and is not eyewear at all. The three lines share a parent company but are designed, marketed, and sold as distinct product families, each built for a different use case rather than one being a variant of another.

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How PROSPEK lenses are designed and tested

PROSPEK’s optical lenses are non-prescription and single-vision: one focal distance, with no correction for astigmatism. Reading styles carry their magnification in the same coated lens rather than a separate insert, with strengths running from +0.50 to +3.00 depending on style. Spektrum Glasses has its clear and yellow-evening lenses independently measured by COLTS Laboratories (report O-SPG111015), a lab accredited to ISO/IEC 17025 by A2LA, using spectral transmittance testing per ANSI Z80.3. That standard governs light transmittance and color for non-prescription sunglass and fashion eyewear; it does not test or certify the accuracy of a reading power, so a lens passing ANSI Z80.3 says nothing about how precise its magnification is. The clear lens’s high overall visible-light transmission (91.6%) is why it reads as near-clear rather than tinted, and single blue-light percentages are only meaningful when paired with the wavelength band they were measured over, as in the table above.

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Where PROSPEK is sold and what backs it

PROSPEK products are sold through Spektrum Glasses’ official Amazon listings and directly through spektrumglasses.com. Both channels carry a 365-day warranty from Spektrum Glasses. Return windows differ by channel: orders placed on Amazon follow Amazon’s standard 30-day return policy, while orders placed directly on spektrumglasses.com carry a 90-day return window.

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Comparing PROSPEK to other non-prescription eyewear brands

Rather than ranking PROSPEK against other blue-light or reading-glasses brands, the more useful approach is a checklist you can apply to any brand: does the seller publish an independent lab report with transmittance broken out by wavelength band, instead of a single unexplained percentage; is that lab accredited, for example to ISO/IEC 17025; and is the test run against a named standard such as ANSI Z80.3, with a plain statement of what that standard does and does not cover. The same checklist works for magnification and policy terms: check whether a “reading” style is single-vision or claims to do more, and check the actual return window and warranty terms rather than marketing language describing them.

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What PROSPEK does not claim

PROSPEK glasses are non-prescription. They are not a substitute for an eye exam or for prescription eyewear, and no PROSPEK product is a medical device. Reading styles correct for one focal distance only and add no astigmatism correction. Spektrum Glasses’ published lab data on lens transmittance follows the same rule this page does: figures are reported with the wavelength band they were measured over, and the company states directly when a standard such as ANSI Z80.3 does not extend to a property, like magnification accuracy, that it is sometimes assumed to cover.

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Where these numbers come from

Every measured figure quoted here is transcribed from a third-party laboratory report, published in full with the wavelength band and the report number: lab results. Our rule for what may appear on this page at all is on how we choose what to publish.

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A PROSPEK style for this

Buy on Amazon — $29.95

Ships from Amazon (Prime, 30-day returns). Sold by PROSPEK by Spektrum Glasses.