Surface Blockers

Coburn Technologies


Traditional and prismatic lens surfacing blocking technology.

Coburn offers three new lens blockers – Spectrum, Spectrumᴾᴿ and Spectrumᴾᴸ. The base model, Spectrum, performs eco-friendly wax lens blocking. For labs that prefer to use alloy, the Spectrumᴾᴿ and Spectrumᴾᴸ can be used. Spectrumᴾᴿ is our most precise prismatic lens blocker, which automatically adjusts the prism axis, magnitude, and the axis of the blocking chuck.

Request more information about our surface blockers today by calling 1-800-262-8761 or filling out this form.



E2G lens blocker by Coburn Technologies with operator keypad, screen, and lens blocking platform.
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Spectrum Prism Lens Blocker

Spectrum Prism Lens Blocker

The new Spectrum Prism Lens Blocker technology automatically attaches the lens block at the correct prism angle, prism base and axis. Compatible with all common surfacing machines, the Spectrum Blocker precisely transports the lens to the chill ring, preventing the opportunity for lens marring or positioning errors.

E2G Surface Blocking System

E2G Surfacing Blocking System

The eco-friendly E2G surface blocking system consists of the E2G blocker, new surface blocks, a deblocker, and a proprietary environmentally safe medium called Onyx-Bond™. Onyx-Bond is the heart of the E2G blocking system. As a reusable, machinable, and biodegradable blocking material, lens laboratories worldwide will benefit from the use of this material for processing all conventional and digital (free-form) lenses.