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

25mm Dia x -75mm FL VIS 0° Coated, Negative Achromatic Lens

×
Stock #62-493 In Stock
×
Other Coating Options
×
- +
C$156.80 C$109.76
Qty 1-5
C$156.80 C$109.76
Qty 6+
C$133.28 C$93.30
Volume Pricing
Request Quote
Get Product Downloads
Diameter (mm):
25.00 +0.0/-0.025
Effective Focal Length EFL (mm):
-75.00
Focal Length Tolerance (%):
±1
Back Focal Length BFL (mm):
-77.65
Focal Length Specification Wavelength (nm):
587.6
Clear Aperture CA (mm):
24.00
Centering (arcmin):
<1
Center Thickness CT (mm):
6.56 ±0.20
Center Thickness CT 1 (mm):
2.50 ±0.10
Center Thickness CT 2 (mm):
4.06 ±0.10
Radius R1 (mm):
-46.07
Radius R2 (mm):
36.65
Radius R3 (mm):
108.00
Edge Thickness ET (mm):
8.90
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
40-20
f/#:
3.00
Numerical Aperture NA:
0.17
Coating:
VIS 0° (425-675nm)
Coating Specification:
Ravg ≤0.4% @ 425 - 675nm
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Bevel:
Protective bevel as needed
Type:
Negative Achromatic Lens
Wavelength Range (nm):
425 - 675

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Family Description

TECHSPEC® Broadband AR Coated Negative Achromatic Lenses are corrected for color and on-axis aberrations. These lenses, consisting of two optical elements cemented together, are commonly used as Barlow lenses to extend focal lengths. TECHSPEC® Broadband AR Coated Negative Achromatic Lenses are available in various diameter sizes and VIS 0° or VIS-NIR coating options.