Borofloat 33 Mirror, MAX R 633 nm

$57.79 ~~$81.4~~ In stock

Narrowband Maximum Reflecting Coating (MAX R) Typically used with lasers, Max R coatings provide nearly complete reflection over a specific spectral range, absorbing negligible incident energy. These high-purity coatings are very durable--designed to meet all standard MIL requirements. The trade-offs for high reflectivity (compared to metal reflectors) are: increased polarization sensitivity and increased cost.

Ready to check out

Review the selected option and total at checkout.

Delivery to you

Allow time for the store to prepare your order before transit begins.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy

Talking through a refund

Send the store your order number and the reason for your request.

Please contact us for the refund processing timeframe before returning an item.

View policy

Your shipping options

Choose from the delivery options available for your address.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy

Before you return a product

Check the conditions for your product before sending it back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Robert D. ★★★★★ Oct 17, 2026

Installed this in my 532nm laser setup and the difference in beam quality was immediate. The narrowband coating handles the power without any noticeable heat buildup.

Julian ★★★★★ Oct 13, 2026

Swapped this in for a cheap mirror in my HeNe setup and the difference was obvious right away — the beam stays tight with almost no scatter. Borofloat 33 substrate feels solid and the coating hasn't degraded after a few months of regular use.

Kevin ★★★★★ Oct 11, 2026

I've been using this mirror to steer a 633 nm HeNe beam and the reflection is so clean I forgot there was a mirror in the path. The coating absorbs essentially nothing, so even after an hour of alignment the optic is still cool to the touch.