YAG-BBAR Coated Achromatic Lenses
• Optimized for <0.25% Absolute Reflectivity at 532nm and 1064nm
• Excellent Broadband Transmission from 500 - 1100nm
• Low Cost Alternative to Air-Spaced Focusing Doublets
TECHSPEC® YAG-BBAR Coated Achromatic Lenses consist of two optical components cemented together to
form a doublet that is ideal for correcting on-axis spherical and chromatic aberrations. These achromats feature
a broadband anti-reflective coating with superior transmission from 500 - 1100nm, and are optimized for less
than 0.25% absolute reflectivity at 532 and 1064nm. Our TECHSPEC® YAG-BBAR Coated Achromatic Lenses are
specifically designed to minimize the spot size for polychromatic illumination within the recommended usable
wavelength range, but may also be used for focusing Nd:YAG lasers, especially those with an alignment beam.
Material Grade: Grade A, Fine Annealed
Diameter Tolerance (mm): +0.000/-0.025
Center Thickness Tolerance (mm): ±0.2
Edge Thickness Tolerance: Reference Value
Power (P-V): 1.5λ
Irregularity (P-V): λ/4
Surface Quality: 40-20
Clear Aperture:
6.25 - 10.0mm Diameter: ≥90% of Diameter
10.01 - 40.00mm Diameter: Diameter - 1.0mm
Centration (arcmin): ≤1
Focal Length Tolerance (%): ±2
Design Wavelength (nm): 587.6
Edges: Fine Ground, Protective Bevel as Needed
Near-UV (NUV) Achromatic Lenses
Material Grade: Grade A, Fine Annealed
Diameter Tolerance (mm): +0.000/-0.025
Center Thickness Tolerance (mm): ±0.2
Edge Thickness Tolerance: Reference Value
Power (P-V): 1.5λ
Irregularity (P-V): λ/4
Surface Quality: 40-20
Clear Aperture:
6.25 - 10.0mm Diameter: ≥90% of Diameter
10.01 - 50.00mm Diameter: Diameter - 1.0mm
Centration (arcmin): ≤1
Focal Length Tolerance (%): ±2
Design Wavelength (nm): 405
Edges: Fine Ground, Protective Bevel as Needed
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TECHSPEC® YAG-BBAR Coated Achromatic Lenses See page 9 for Coating Specifications
Radius Stock No.
Dia. (mm) EFL (mm) BFL (mm) CT1 (mm) CT2 (mm) ET (mm) Glass Type
YAG-BBAR Coated
Price – YAG-BBAR Coated
R1 -R2 -R3 1-5 6-25 26+
6.25 12.5 10.36 3.00 0.80 3.12 8.63 5.29 51.17 N-BAF10/N-SF10 #33-202 £51.00 £40.80
Call for OEM Quantity Pricing
6.25 25.0 23.45 2.30 0.90 2.73 15.37 11.16 32.17 N-BK7/N-SF5 #33-203 £51.00 £40.80
6.25 50.0 48.61 2.00 1.00 2.77 30.77 22.05 64.6 N-BK7/N-SF5 #33-204 £51.00 £40.80
9.00 12.00 8.33 5.00 2.00 5.30 8.37 7.01 26.18 N-BAF10/N-SF57 #11-356 £55.25 £44.20
12.50 25.0 21.47 5.00 1.25 4.90 17.27 10.99 107.03 N-BAF10/N-SF10 #33-205 £59.92 £48.02
12.50 50.0 47.61 3.50 1.50 4.06 30.73 22.32 64.75 N-BK7/N-SF5 #33-206 £59.92 £48.02
12.50 75.0 72.35 3.00 1.60 3.97 46.44 33.77 95.94 N-BK7/N-SF5 #33-207 £59.92 £48.02
12.50 100.0 97.92 3.00 1.50 4.03 61.54 44.39 130.26 N-BK7/N-SF5 #33-208 £59.92 £48.02
20.00 40.00 34.40 8.00 2.00 7.83 27.63 17.58 171.25 N-BAF10/N-SF10 #11-357 £75.22 £59.92
25.00 50.0 43.53 9.00 2.50 8.79 34.53 21.98 214.63 N-BAF10/N-SF10 #33-209 £79.47 £63.75
25.00 75.0 70.39 7.00 2.50 6.97 46.44 33.77 95.94 N-BK7/N-SF5 #33-210 £79.47 £63.75
25.00 100.0 95.92 6.00 2.50 6.61 61.47 44.64 129.94 N-BK7/N-SF5 #33-211 £79.47 £63.75
25.00 150.0 146.10 5.70 2.20 6.65 91.37 66.21 197.71 N-BK7/N-SF5 #33-212 £79.47 £63.75
25.00 200.0 194.14 8.50 4.00 11.56 124.12 87.26 253.1 N-BK7/N-SF5 #33-213 £79.47 £63.75
40.00 160.00 154.10 8.50 4.00 9.48 98.66 -70.73 -205.72 N-BK7/N-SF5 #11-732 £125.80 £100.72
40.00 200.00 194.14 8.50 4.00 10.09 124.12 -87.26 -253.10 N-BK7/N-SF5 #11-733 £125.80 £100.72
• Excellent Transmission in 345 - 700nm Range
• Ideal for use with NUV LEDs and Mercury Lamps
• Low-Cost, Cemented Design
Our TECHSPEC® NUV Achromatic Lenses are specifically designed to minimize the spot size for polychromatic
illumination in the 345 - 700nm region. Ideal for use in fluorescence applications, as well as for simple focusing of
common UV light sources, such as Mercury Arc Lamps, UV LEDs, and Tripled Nd:YAG lasers. The achromatic
lenses feature a simple cemented design, and are an excellent alternative to air-spaced doublets and triplets for
the UV. The lenses feature >90% transmission at 360nm, and provide >50% transmission at 334nm.
TECHSPEC® NUV Achromatic Lenses
Wavelength (nm)
Transmission (%)
100
95
90
85
80
75
70
65
60
55
50
320 370 420 470 520 570 620 670
TECHSPEC® Near-UV (NUV) Achromatic Lenses
Dia.
EFL
BFL
CTCTET
1
2
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
Radius (mm) Glass
Type
Stock No.
UV-VIS
Coated
Price –
UV-VIS Coated
R1 -R2 -R3 1-5 6-25 26+
6.25 12.50 10.22 3.50 1.10 3.58 7.56 -5.53 -14.30 N-FK5/F2 #84-327 £91.38 £73.10
Call For OEM Quantity Pricing
6.25 15.00 13.05 3.00 1.00 3.17 9.12 -6.79 -17.77 N-FK5/F2 #84-328 £91.38 £73.10
6.25 20.00 18.36 2.40 1.00 2.80 12.09 -9.55 -25.35 N-FK5/F2 #84-329 £91.38 £73.10
6.25 25.00 23.38 2.00 1.00 2.52 13.57 -13.57 -43.89 N-FK5/F2 #84-330 £91.38 £73.10
6.25 30.00 28.39 2.00 1.00 2.61 16.37 -16.37 -52.44 N-FK5/F2 #84-331 £91.38 £73.10
9.00 18.00 15.05 4.00 1.50 4.02 9.99 -8.07 -24.83 N-FK5/F2 #35-993 £96.90 £77.35
9.00 27.00 24.13 3.75 1.50 4.29 14.60 -12.12 -40.64 N-FK5/F2 #35-994 £96.90 £77.35
9.00 36.00 33.56 3.00 1.50 3.79 19.20 -16.29 -57.12 N-FK5/F2 #35-995 £96.90 £77.35
12.50 25.00 21.59 5.00 2.00 4.99 15.08 -11.48 -30.10 N-FK5/F2HT #65-971 £100.30 £80.33
12.50 30.00 27.22 4.00 2.00 4.40 18.66 -15.60 -37.78 N-FK5/F2 #65-972 £100.30 £80.33
12.50 40.00 37.48 3.50 2.00 4.30 24.47 -19.17 -50.19 N-FK5/F2 #65-973 £100.30 £80.33
12.50 50.00 47.31 3.50 2.00 4.55 29.11 -25.27 -71.39 N-FK5/F2 #65-974 £100.30 £80.33
25.00 50.00 44.74 8.00 2.50 6.54 30.03 -24.15 -63.90 N-FK5/F2 #65-976 £114.33 £91.38
25.00 60.00 55.63 6.50 2.50 5.75 36.25 -28.67 -76.58 N-FK5/F2 #65-977 £114.33 £91.38
25.00 75.00 71.09 5.50 2.50 5.44 45.50 -36.34 -96.60 N-FK5/F2 #65-978 £114.33 £91.38
25.00 100.00 96.32 5.00 2.50 5.60 58.81 -50.72 -141.71 N-FK5/F2 #65-979 £114.33 £91.38
25.00 125.00 121.29 5.00 2.50 5.99 72.95 -64.21 -181.98 N-FK5/F2 #65-980 £114.33 £91.38
50.00 100.00 87.39 16.00 5.00 12.86 50.95 -50.95 -197.88 N-FK5/F2 #85-878 £171.70 £137.28
50.00 150.00 141.28 11.00 5.00 10.74 80.42 -71.10 -245.23 N-FK5/F2 #35-996 £171.70 £137.28
50.00 200.00 192.01 10.00 4.50 10.57 105.89 -92.87 -334.00 N-FK5/F2 #35-997 £171.70 £137.28
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