Compare Model Drawings, CAD & Specs Availability Price
KBX010AR.16
Bi-Convex Lens, N-BK7, 6.35 mm Diameter, 6.4 mm EFL, 650-1000nm
$72
In Stock
 KBX010AR.16 Bi-Convex Lens, N-BK7, 6.35 mm Diameter, 6.4 mm EFL, 650-1000nm
In Stock
 $72
KBX013AR.16
Bi-Convex Lens, N-BK7, 6.35 mm Diameter, 12.7 mm EFL, 650-1000nm
$62
In Stock
 KBX013AR.16 Bi-Convex Lens, N-BK7, 6.35 mm Diameter, 12.7 mm EFL, 650-1000nm
In Stock
 $62
KBX019AR.16
Bi-Convex Lens, N-BK7, 6.35 mm Diameter, 25.4 mm EFL, 650-1000nm
$62
In Stock
 KBX019AR.16 Bi-Convex Lens, N-BK7, 6.35 mm Diameter, 25.4 mm EFL, 650-1000nm
In Stock
 $62
KBX022AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 12.7 mm EFL, 650-1000nm
$62
In Stock
 KBX022AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 12.7 mm EFL, 650-1000nm
In Stock
 $62
KBX025AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 19.0 mm EFL, 650-1000nm
$62
In Stock
 KBX025AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 19.0 mm EFL, 650-1000nm
In Stock
 $62
KBX028AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 25.4 mm EFL, 650-1000nm
$62
In Stock
 KBX028AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 25.4 mm EFL, 650-1000nm
In Stock
 $62
KBX031AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 38.1 mm EFL, 650-1000nm
$62
In Stock
 KBX031AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 38.1 mm EFL, 650-1000nm
In Stock
 $62
KBX034AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 50.2 mm EFL, 650-1000nm
$62
In Stock
 KBX034AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 50.2 mm EFL, 650-1000nm
In Stock
 $62
KBX037AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 62.9 mm EFL, 650-1000nm
$62
In Stock
 KBX037AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 62.9 mm EFL, 650-1000nm
In Stock
 $62
KBX040AR.16
Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 75.6 mm EFL, 650-1000nm
$62
In Stock
 KBX040AR.16 Bi-Convex Lens, N-BK7, 12.7 mm Diameter, 75.6 mm EFL, 650-1000nm
In Stock
 $62
KBX043AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 19.0 mm EFL, 650-1000nm
$66
In Stock
 KBX043AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 19.0 mm EFL, 650-1000nm
In Stock
 $66
KBX046AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 25.4 mm EFL, 650-1000nm
$66
In Stock
 KBX046AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 25.4 mm EFL, 650-1000nm
In Stock
 $66
KBX049AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 38.1 mm EFL, 650-1000nm
$66
In Stock
 KBX049AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 38.1 mm EFL, 650-1000nm
In Stock
 $66
KBX052AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 50.2 mm EFL, 650-1000nm
$66
In Stock
 KBX052AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 50.2 mm EFL, 650-1000nm
In Stock
 $66
KBX055AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 62.9 mm EFL, 650-1000nm
$66
In Stock
 KBX055AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 62.9 mm EFL, 650-1000nm
In Stock
 $66
KBX058AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 75.6 mm EFL, 650-1000nm
$66
In Stock
 KBX058AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 75.6 mm EFL, 650-1000nm
In Stock
 $66
KBX061AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 88.3 mm EFL, 650-1000nm
$66
In Stock
 KBX061AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 88.3 mm EFL, 650-1000nm
In Stock
 $66
KBX064AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 100 mm EFL, 650-1000nm
$66
In Stock
 KBX064AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 100 mm EFL, 650-1000nm
In Stock
 $66
KBX067AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 125 mm EFL, 650-1000nm
$66
In Stock
 KBX067AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 125 mm EFL, 650-1000nm
In Stock
 $66
KBX070AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 150 mm EFL, 650-1000nm
$66
In Stock
 KBX070AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 150 mm EFL, 650-1000nm
In Stock
 $66
KBX073AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 175 mm EFL, 650-1000nm
$66
In Stock
 KBX073AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 175 mm EFL, 650-1000nm
In Stock
 $66
KBX076AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 200 mm EFL, 650-1000nm
$66
In Stock
 KBX076AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 200 mm EFL, 650-1000nm
In Stock
 $66
KBX079AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 250 mm EFL, 650-1000nm
$66
In Stock
 KBX079AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 250 mm EFL, 650-1000nm
In Stock
 $66
KBX082AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 500 mm EFL, 650-1000nm
$66
In Stock
 KBX082AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 500 mm EFL, 650-1000nm
In Stock
 $66
KBX088AR.16
Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 1000 mm EFL, 650-1000nm
$66
In Stock
 KBX088AR.16 Bi-Convex Lens, N-BK7, 25.4 mm Diameter, 1000 mm EFL, 650-1000nm
In Stock
 $66
KBX139AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 38.1 mm EFL, 650-1000nm
$100
In Stock
 KBX139AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 38.1 mm EFL, 650-1000nm
In Stock
 $100
KBX142AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 50.2 mm EFL, 650-1000nm
$100
In Stock
 KBX142AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 50.2 mm EFL, 650-1000nm
In Stock
 $100
KBX145AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 62.9 mm EFL, 650-1000nm
$100
In Stock
 KBX145AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 62.9 mm EFL, 650-1000nm
In Stock
 $100
KBX148AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 75.6 mm EFL, 650-1000nm
$100
In Stock
 KBX148AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 75.6 mm EFL, 650-1000nm
In Stock
 $100
KBX151AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 88.3 mm EFL, 650-1000nm
$100
In Stock
 KBX151AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 88.3 mm EFL, 650-1000nm
In Stock
 $100
KBX154AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 100 mm EFL, 650-1000nm
$100
In Stock
 KBX154AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 100 mm EFL, 650-1000nm
In Stock
 $100
KBX157AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 125 mm EFL, 650-1000nm
$100
In Stock
 KBX157AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 125 mm EFL, 650-1000nm
In Stock
 $100
KBX160AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 150 mm EFL, 650-1000nm
$100
In Stock
 KBX160AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 150 mm EFL, 650-1000nm
In Stock
 $100
KBX163AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 175 mm EFL, 650-1000nm
$100
In Stock
 KBX163AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 175 mm EFL, 650-1000nm
In Stock
 $100
KBX166AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 200 mm EFL, 650-1000nm
$100
In Stock
 KBX166AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 200 mm EFL, 650-1000nm
In Stock
 $100
KBX169AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 250 mm EFL, 650-1000nm
$100
In Stock
 KBX169AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 250 mm EFL, 650-1000nm
In Stock
 $100
KBX172AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 300 mm EFL, 650-1000nm
$100
In Stock
 KBX172AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 300 mm EFL, 650-1000nm
In Stock
 $100
KBX175AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 400 mm EFL, 650-1000nm
$100
In Stock
 KBX175AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 400 mm EFL, 650-1000nm
In Stock
 $100
KBX178AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 500 mm EFL, 650-1000nm
$100
In Stock
 KBX178AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 500 mm EFL, 650-1000nm
In Stock
 $100
KBX184AR.16
Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 1000 mm EFL, 650-1000nm
$100
In Stock
 KBX184AR.16 Bi-Convex Lens, N-BK7, 50.8 mm Diameter, 1000 mm EFL, 650-1000nm
In Stock
 $100

Specifications

  • Lens Shape
    Bi-Convex (Double Convex)
  • Lens Material
    N-BK7
  • Antireflection Coating
    650-1000 nm
  • Coating Type
    NIR Multilayer
  • Coating Code
    AR.16
  • Damage Threshold
    7.5 J/cm2, 10 ns pulses, 10 Hz at 1064 nm
  • Surface Quality
    40-20 scratch-dig
  • Surface Accuracy, Irregularity
    λ/4
  • Surface Accuracy, Power
    1.5 λ
  • Centration
    ≤3 arc min
  • Chamfers
    0–0.8 mm face width
  • Chamfers Angle/Tolerance
    45° ±15°, typical
  • Focal Length Tolerance
    ±1 %
  • Diameter Tolerance
    +0/-0.1 mm
  • Center Thickness Tolerance
    ±0.1 mm
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning
    See How to Clean Optics

Features

N-BK7 Substrates for VIS and NIR Applications

N-BK7 is an excellent lens material for most visible and near infrared applications. It is the most common borosilicate crown optical glass, and it provides great performance at a good value. Its high homogeneity, low bubble and inclusion content, and straightforward manufacturability make it a good choice for transmissive optics. N-BK7 is also relatively hard and shows good scratch resistance. The transmission range for BK 7 is 380 to 2100 nm. It is not recommended for temperature sensitive applications, such as precision mirrors. For more information, refer to our optical materials technical note.

Precision Double Convex Lens Surfaces

Our precision bi-convex lenses are polished to tight tolerances minimizing wavefront distortion. Tight surface quality tolerances minimize scatter and unwanted diffraction effects. These lenses have a 40-20 scratch-dig surface quality, and a λ/4 surface irregularity. For more information, refer to the optical surfaces technical note.

Broadband Multilayer NIR Antireflection Coatings

Our broadband AR.16 antireflection coating improves the transmission efficiency of these lenses by reducing surface reflections over a 650-1000 nm wavelength range. The NIR AR multi-layer coating improves the performance over uncoated surfaces. It features a damage threshold of 7.5 J/cm‌2 for 10 ns pulses at 10 Hz and 1064 nm.

Standardized Bi-Convex Focal Lengths

Standard effective focal lengths on our double-convex lenses provide a systematic approach allowing for lenses of different sizes and materials to be interchanged without requiring other changes to your optical system.

Bi-Convex Lens Shape for Focusing

Bi-Convex lenses are the best choice when the object and image are at equal or near equal distance from the lens. When the object and image distance are equal (1:1 magnification), not only is spherical aberration minimized, but also coma, distortion, and chromatic aberration are identically canceled due to the symmetry. Bi-convex lenses function similarly to plano-convex lenses in that they have a positive focal length, and focus parallel rays of light to a point. Both surface are spherical and have the same radius of curvature, thereby minimizing spherical aberration. As a guideline, bi-convex lenses perform within minimum aberration at conjugate ratios between 5:1 and 1:5. Outside this magnification range, plano-convex lenses are usually more suitable.

We offer a full range of optical lens mounts to meet various experimental requirements. Below lists the recommended mounts for spherical lenses of standard sizes. Please see our Lens Mount Guide for additional information.

Note: besides the diameter, please check the Edge Thickness (Te) specification of the lens and the lens mount to ensure compatibility before purchasing. 

Lens Diameter LH-A-GRP
A-Line™ Lens Mounts		 LT_Series_group_update
LT Series Lens Tubes		 OM-multi_axis_lens_pos-S
LP Series Lens Positioners		 optics-cage-plus-S
Optics Cage Plus Series
76.2 mm (M-) LH-3A N/A N/A N/A
50.8 mm (M-) LH-2A
LH-2N		 LT20-05
LT20-10
LT20-20
LT20-30		 LP-2A
LP-2A-XY
LP-2A-XYZ		 N/A
38.1 mm (M-) LH-1.5A LT20 lens tube with
LH-2R1.5 adapter		 LP-2 lens positioner with
LPLH-1.5T adapter		 N/A
25.4 mm (M-) LH-1A
LH-1N
LH-1XY
LH-1TZ-A
LH-1TZ		 LT10-05
LT10-10
LT10-20
LT10-30		 LP-1A
LP-1A-XY
LP-1A-XYZ		 OC1-LH1-S
OC1-LH1
OC1-LH1-TZ
OC1-LH1-XY
OC1-LH1-XYA
OC1-LH1-XYC
OC1-LH1-XYZ
12.7 mm (M-) LH-0.5A
LH-05N		 LT05-05
LT05-10		 LP-05A
LP-05A-XY
LP-05A-XYZ		 N/A
6.35 mm LH-05DB with
LH-50R25 adapter		 LT05 lens tube with
LH-50R25 adapter		 LP-05 lens positioner with
LPLH-25T adapter		 N/A

For non-standard sizes not listed above, check out our variable size lens mounts.

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