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TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

λ/20 First Surface Mirrors

Precision Fused Silica Substrate
20-10 Surface Quality
Low Coefficient of Thermal Expansion

TECHSPEC® λ/20 First Surface Mirrors are polished to industry leading surface accuracy and quality specifications to minimize reflected wavefront error. These mirrors feature a precision fused silica substrate with a low coefficient of thermal expansion. Multiple coating options are available, allowing these mirrors to be integrated into applications spanning the visible through infrared spectra. TECHSPEC® λ/20 First Surface Mirrors are ideal for beam steering and reflection applications and are available in a variety of size, thickness, and coating options.

Note: Surface flatness is measured before coating.

Common Specifications

Back Surface:

Commercial Polish

Clear Aperture (%):

90.00

Edges:

Ground, protective bevel as needed

Parallelism (arcsec):

30.00

Substrate:

Fused Silica (Corning 7980)

Surface Quality:

20-10

Coating Type:

Metal

Products
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Products

Dia. (mm)	Surface Flatness (P-V)	Dimensions (mm)	Coating Specification	Coating	Thickness (mm)	Stock Number	Price	Buy

10.00 10.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	2.00 2.00	#34-354	125,00 €125,00 Qty 6+ €99,00 Request Quote	Contact Us ×
10.00 10.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	2.00 2.00	#34-370	154,00 €154,00 Qty 6+ €124,00 Request Quote	3-4 days ×
10.00 10.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	2.00 2.00	#34-386	149,00 €149,00 Qty 6+ €119,00 Request Quote	3-4 days ×
10.00 10.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	2.00 2.00	#70-285 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	125,00 €125,00 Qty 6+ €100,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	10.0 x 10.0 10.0 x 10.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	2.00 2.00	#34-355	125,00 €125,00 Qty 6+ €99,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	10.0 x 10.0 10.0 x 10.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	2.00 2.00	#34-371	154,00 €154,00 Qty 6+ €124,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	10.0 x 10.0 10.0 x 10.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	2.00 2.00	#34-387	149,00 €149,00 Qty 6+ €119,00 Request Quote	Contact Us ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	10.00 x 10.00 10.00 x 10.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	2.00 2.00	#70-286 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	125,00 €125,00 Qty 6+ €100,00 Request Quote	3-4 days ×
15.00 15.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	3.00 3.00	#34-356	132,00 €132,00 Qty 6+ €106,00 Request Quote	3-4 days ×
15.00 15.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	3.00 3.00	#34-372	169,00 €169,00 Qty 6+ €135,00 Request Quote	In Stock ×
15.00 15.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	3.00 3.00	#34-388	154,00 €154,00 Qty 6+ €124,00 Request Quote	3-4 days ×
15.00 15.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	3.00 3.00	#70-287 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	132,00 €132,00 Qty 6+ €106,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	15.0 x 15.0 15.0 x 15.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	3.00 3.00	#34-357	132,00 €132,00 Qty 6+ €106,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	15.0 x 15.0 15.0 x 15.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	3.00 3.00	#34-373	169,00 €169,00 Qty 6+ €135,00 Request Quote	Contact Us ×
- -	λ/20 λ/20	15.0 x 15.0 15.0 x 15.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	3.00 3.00	#34-389	154,00 €154,00 Qty 6+ €124,00 Request Quote	Contact Us ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	15.00 x 15.00 15.00 x 15.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	3.00 3.00	#70-288 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	132,00 €132,00 Qty 6+ €106,00 Request Quote	3-4 days ×
20.00 20.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	3.00 3.00	#34-358	144,00 €144,00 Qty 6+ €115,00 Request Quote	Contact Us ×
20.00 20.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	3.00 3.00	#34-374	176,00 €176,00 Qty 6+ €141,00 Request Quote	Contact Us ×
20.00 20.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	3.00 3.00	#34-390	171,00 €171,00 Qty 6+ €137,00 Request Quote	3-4 days ×
20.00 20.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	3.00 3.00	#70-289 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	144,00 €144,00 Qty 6+ €115,00 Request Quote	Contact Us ×
- -	λ/20 λ/20	20.0 x 20.0 20.0 x 20.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	3.00 3.00	#34-359	144,00 €144,00 Qty 6+ €115,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	20.0 x 20.0 20.0 x 20.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	3.00 3.00	#34-375	176,00 €176,00 Qty 6+ €141,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	20.0 x 20.0 20.0 x 20.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	3.00 3.00	#34-391	171,00 €171,00 Qty 6+ €137,00 Request Quote	3-4 days ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	20.00 x 20.00 20.00 x 20.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	3.00 3.00	#70-290 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	144,00 €144,00 Qty 6+ €115,00 Request Quote	3-4 days ×
25.00 25.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	4.00 4.00	#34-360	149,00 €149,00 Qty 6+ €119,00 Request Quote	3-4 days ×
25.00 25.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	4.00 4.00	#34-376	221,00 €221,00 Qty 6+ €176,50 Request Quote	In Stock ×
25.00 25.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	4.00 4.00	#34-392	191,00 €191,00 Qty 6+ €152,50 Request Quote	In Stock ×
25.00 25.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	4.00 4.00	#70-291 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	149,00 €149,00 Qty 6+ €119,00 Request Quote	Contact Us ×
- -	λ/20 λ/20	25.0 x 25.0 25.0 x 25.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	4.00 4.00	#34-361	149,00 €149,00 Qty 6+ €119,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	25.0 x 25.0 25.0 x 25.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	4.00 4.00	#34-377	221,00 €221,00 Qty 6+ €176,50 Request Quote	Contact Us ×
- -	λ/20 λ/20	25.0 x 25.0 25.0 x 25.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	4.00 4.00	#34-393	191,00 €191,00 Qty 6+ €152,50 Request Quote	3-4 days ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	25.00 x 25.00 25.00 x 25.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	4.00 4.00	#70-292 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	149,00 €149,00 Qty 6+ €119,00 Request Quote	3-4 days ×
30.00 30.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	5.00 5.00	#34-362	196,00 €196,00 Qty 6+ €157,00 Request Quote	3-4 days ×
30.00 30.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	5.00 5.00	#34-378	263,00 €263,00 Qty 6+ €209,50 Request Quote	3-4 days ×
30.00 30.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	5.00 5.00	#34-394	218,00 €218,00 Qty 6+ €174,50 Request Quote	In Stock ×
30.00 30.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	5.00 5.00	#70-293 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	196,00 €196,00 Qty 6+ €157,00 Request Quote	Contact Us ×
- -	λ/20 λ/20	30.0 x 30.0 30.0 x 30.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	5.00 5.00	#34-363	196,00 €196,00 Qty 6+ €157,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	30.0 x 30.0 30.0 x 30.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	5.00 5.00	#34-379	263,00 €263,00 Qty 6+ €209,50 Request Quote	Contact Us ×
- -	λ/20 λ/20	30.0 x 30.0 30.0 x 30.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	5.00 5.00	#34-395	218,00 €218,00 Qty 6+ €174,50 Request Quote	In Stock ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	30.00 x 30.00 30.00 x 30.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	5.00 5.00	#70-294 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	196,00 €196,00 Qty 6+ €157,00 Request Quote	3-4 days ×
40.00 40.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	5.00 5.00	#34-364	235,00 €235,00 Qty 6+ €187,50 Request Quote	Contact Us ×
40.00 40.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	5.00 5.00	#34-380	312,00 €312,00 Qty 6+ €249,50 Request Quote	3-4 days ×
40.00 40.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	5.00 5.00	#34-396	287,00 €287,00 Qty 6+ €229,50 Request Quote	Contact Us ×
40.00 40.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	5.00 5.00	#70-295 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	235,00 €235,00 Qty 6+ €188,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	40.0 x 40.0 40.0 x 40.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	5.00 5.00	#34-365	235,00 €235,00 Qty 6+ €187,50 Request Quote	3-4 days ×
- -	λ/20 λ/20	40.0 x 40.0 40.0 x 40.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	5.00 5.00	#34-381	312,00 €312,00 Qty 6+ €249,50 Request Quote	3-4 days ×
- -	λ/20 λ/20	40.0 x 40.0 40.0 x 40.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	5.00 5.00	#34-397	287,00 €287,00 Qty 6+ €229,50 Request Quote	3-4 days ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	40.00 x 40.00 40.00 x 40.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	5.00 5.00	#70-296 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	235,00 €235,00 Qty 6+ €188,00 Request Quote	3-4 days ×
50.00 50.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	5.00 5.00	#34-366	251,00 €251,00 Qty 6+ €201,00 Request Quote	Contact Us ×
50.00 50.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	5.00 5.00	#34-382	351,00 €351,00 Qty 6+ €280,50 Request Quote	3-4 days ×
50.00 50.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	5.00 5.00	#34-398	320,00 €320,00 Qty 6+ €256,00 Request Quote	3-4 days ×
50.00 50.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	5.00 5.00	#70-297 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	251,00 €251,00 Qty 6+ €201,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	50.0 x 50.0 50.0 x 50.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	5.00 5.00	#34-367	251,00 €251,00 Qty 6+ €201,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	50.0 x 50.0 50.0 x 50.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	5.00 5.00	#34-383	351,00 €351,00 Qty 6+ €280,50 Request Quote	3-4 days ×
- -	λ/20 λ/20	50.0 x 50.0 50.0 x 50.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	5.00 5.00	#34-399	320,00 €320,00 Qty 6+ €256,00 Request Quote	3-4 days ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	50.00 x 50.00 50.00 x 50.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	5.00 5.00	#70-299 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	251,00 €251,00 Qty 6+ €201,00 Request Quote	3-4 days ×
75.00 75.00	λ/20 λ/20	- -	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	7.50 7.50	#34-368	525,00 €525,00 Qty 6+ €419,00 Request Quote	Contact Us ×
75.00 75.00	λ/20 λ/20	- -	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	7.50 7.50	#34-384	680,00 €680,00 Qty 6+ €543,00 Request Quote	3-4 days ×
75.00 75.00	λ/20 λ/20	- -	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	7.50 7.50	#34-400	630,00 €630,00 Qty 6+ €503,00 Request Quote	In Stock ×
75.00 75.00	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	- -	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	7.50 7.50	#70-300 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	525,00 €525,00 Qty 6+ €419,00 Request Quote	Contact Us ×
- -	λ/20 λ/20	75.0 x 75.0 75.0 x 75.0	Ravg >95% @ 450 - 650nm R_avg >95% @ 450 - 650nm	Enhanced Aluminum (450-650nm) Enhanced Aluminum (450-650nm)	7.50 7.50	#34-369	525,00 €525,00 Qty 6+ €419,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	75.0 x 75.0 75.0 x 75.0	R_avg >96% @ 700 - 2000nm R_avg >96% @ 2000 - 10,000nm	Protected Gold (700-10000nm) Protected Gold (700-10000nm)	7.50 7.50	#34-385	680,00 €680,00 Qty 6+ €543,00 Request Quote	3-4 days ×
- -	λ/20 λ/20	75.0 x 75.0 75.0 x 75.0	R_avg >98% @ 450 - 2000nm R_avg >98% @ 2000 - 10,000nm	Protected Silver (450-10000nm) Protected Silver (450-10000nm)	7.50 7.50	#34-401	630,00 €630,00 Qty 6+ €503,00 Request Quote	In Stock ×
- -	λ/20 (flatness pre-coating) λ/20 (flatness pre-coating)	75.00 x 75.00 75.00 x 75.00	R_avg >85% @ 250 - 700nm R_avg >89% @ 250 - 450nm	UV Enhanced Aluminum (250-700nm) UV Enhanced Aluminum (250-700nm)	7.50 7.50	#70-301 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	525,00 €525,00 Qty 6+ €419,00 Request Quote	3-4 days ×

Technical Information

Accessories

Related Products

Interferometry Windows

Precision Optical Flat Mirrors

Laser Line λ/20 High Tolerance Right Angle Mirrors

λ/10 First Surface Mirrors

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

Custom dimensions, materials, coatings, and more
High-precision surface quality and flatness
Tight tolerances and complex geometries
Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

Resources

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Metallic Mirror Coatings

Want to learn more about metallic mirror coatings? Find information about standard and custom metallic mirror coatings that are available at Edmund Optics.

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Optical Mirrors Review

Mirrors are commonly used to fold or compact an optical system.

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What is the difference between a first-surface and a second-surface mirror?

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You specified a first surface mirror but you seem to have sold me a second surface mirror. What happened?

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What is a seamed edge?

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What is the difference between ¼ wave, 1/10 wave, and 1/20 wave mirrors?

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Does the polarization of light change after reflecting off a mirror?

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How do I clean my mirrors?

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How do I mount a mirror to a mirror mount that doesn't have a clamp or retainer ring?

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Retroreflector

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Angle of Incidence

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Angle of Reflection

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Cold Mirror

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Eccentricity

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What is the difference between Protected Aluminum, Enhanced Aluminum, UV Enhanced Aluminum, Protected Gold, and Protected Silver?

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How do you measure the reflectivity of mirrors with a reflectivity less than 99.5%?

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Do you have mounts for square or rectangular optics?

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Reflection

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Specular

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First Surface Mirror

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Parity

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Basic Principles of Raman Scattering and Spectroscopy

Raman spectroscopy is a technique used to identify the chemical composition of samples based on how light scatters off of them. Learn more & view related optics

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Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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Parallelism

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Seamed Edge

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Bevel

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Surface Flatness

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How do I clean my optics?

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Clear Aperture (CA)

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Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

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Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

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Surface Quality

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λ/20 First Surface Mirrors

Common Specifications

Products

Technical Information

Accessories

Related Products

Custom

Resources

Metallic Mirror Coatings

Optical Mirrors Review

What is the difference between a first-surface and a second-surface mirror?

You specified a first surface mirror but you seem to have sold me a second surface mirror. What happened?

What is a seamed edge?

What is the difference between &frac14; wave, 1/10 wave, and 1/20 wave mirrors?

Does the polarization of light change after reflecting off a mirror?

How do I clean my mirrors?

How do I mount a mirror to a mirror mount that doesn't have a clamp or retainer ring?

Retroreflector

Angle of Incidence

Angle of Reflection

Cold Mirror

Eccentricity

What is the difference between Protected Aluminum, Enhanced Aluminum, UV Enhanced Aluminum, Protected Gold, and Protected Silver?

How do you measure the reflectivity of mirrors with a reflectivity less than 99.5%?

Do you have mounts for square or rectangular optics?

Reflection

Specular

First Surface Mirror

Parity

Basic Principles of Raman Scattering and Spectroscopy

Removing Protective Plastic Coating

Parallelism

Seamed Edge

Bevel

Surface Flatness

How do I clean my optics?

Clear Aperture (CA)

Edmund Optics Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Surface Quality

What is the difference between ¼ wave, 1/10 wave, and 1/20 wave mirrors?