Double-Concave Lenses

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Grouped product items
SKU Specifications Stock Qty Price Add to cart
9007970
Center thickness, mm: 2.00 (±0.05)
Centering (ETV): <0.015 mm
Protective chamfers: 0.1-0.3 mm x 45 ±10°
Clear Aperture:
Coatings: AR/AR (R < 1.5%) @ 1064 + 1570 nm, AOI = 0° (over CA)
Diameter, mm: 7.00 (+0.00/-0.02)
S1 Flatness, PV IR S2 Flatness, PV: 1/4 fringe @ 632.8 nm
Material: Schott N-SF57
Power: 2 fringes @ 632.8 nm
ROC S1, mm: 39.995 CC
ROC2, mm: 46.073 CC
S1: > Ø5.2 mm
S2: > Ø5.5 mm
Surface finish:
Surface quality: 10-5 S-D
11
€327.00
9011711
Center thickness, mm: 4.00 (±0.05)
Centering: <2 arcmin
Protective chamfers: 0.2 + 0.2 mm (FW) x 45°
Clear Aperture:
Coatings: AR/AR (Ravg < 0.5%) @ 1520 - 1560 nm, AOI = 0°
Diameter, mm: 8.00 (+0/-0.02)
S1 Flatness, PV IR S2 Flatness, PV: 1.0 fringe @ 633 nm
Material: N-SF6 (equivalent)
ROC S1, mm: 6.000 (±0.006) CC
ROC2, mm: 6.000 (±0.006) CC
S1: >Ø5.5 mm
S2: >Ø6.5 mm
Surface quality: 20-10 S-D
7
€26.00
9300610
AR coatings: Laser line AR coated
Centration error: <3 arcmin
Clear aperture: >90
Dimensions tolerance, mm: (+0/-0.1)
Dimensions, mm: 12.7
Edge thickness, mm: 8
Focal length, mm: -25
Material: UVFS
Surface quality, S-D: 40-20
Thickness tolerance, mm: ±0.1
Wavelength, nm: 258+343
2
€90.00
9338603
AR coatings: AR/(R<0.15%)@1064 i0°
Center thickness, mm: 2
Comments: CA=6mm
Dimensions tolerance, mm: ±0.15
Dimensions, mm: 10
Focal length, mm: -7.5
Material: UVFS (C7980)
ROC S1, mm: -7.05
ROC2, mm: -7.05
Thickness tolerance, mm: ±0.05
Wavelength, nm: 1064
2
€32.00
9428802
Clear aperture: 90
Coatings: AR/AR(R<0.2%)@1030, AOI=0°
Dimensions tolerance, mm: +0.0/-0.1
Dimensions, mm: 12.7
Edge thickness, mm: 5
Focal length, mm: -12
Material: BK7
Opticus comment: missing productID ref
Protective chamfers: <0.25 mm x 45°
ROC S1, mm: -12.59
ROC S2, mm: -12.59
S1 Flatness, PV IR S2 Flatness, PV: <λ/6 @ 632.8 nm
Surface quality, S-D: 40-20
Thickness tolerance, mm: +/-0.1
30
€57.00
9501200
Opticus comment: missing ref
18
€20.00
9503020
Material: equivalent
ROC S1, mm: 50.57 (±0.15)
ROC2, mm: 17.38 (±0.05)
14
€57.00
9559005
NEW
Coatings: AR/AR(R<0.3%)@700-900 nm. AOI=0deg.
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
Material: FS
Focal length, mm: -800 ( ±3%)
Dimensions, mm: Ø50.8 (+0/-0.2)
Surface quality, S-D: 40-20
Clear Aperture: >90
Adhesion and durability: Per MIL-C-675A
Edge thickness, mm: >3
1
€95.00
9595259
NEW
Dimensions tolerance, mm: +0.0/-0.05
ROC S1, mm: 16.166 (+/-0.2%)
Thickness tolerance, mm: (±0.1)
Surface quality, S-D: 20-10
S1 Flatness, PV IR S2 Flatness, PV: <2λ PWR, 0.5λ IRR
ROC S2, mm: 19.49 (+/-0.2%)
Protective chamfers: <0.3 mm x 45°
Opticus comment: missing productID ref
Dimensions, mm: Ø20
Coatings: AR<0,5%@ 1050-1070 (T>99%@ 1064) AOI=0-35 deg
Clear aperture: Ø8.7mm,S1;Ø10mm,S2
Centration error: <1arcmin
Center thickness, mm: 2
Material: N-SF57HT
6
€73.00
9603410
NEW
Surface quality, S-D: 40-20
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
Opticus comment: missing productID ref
ROC S1, mm: 225.205 +/-0.1
Dimensions, mm: Ø22.00
Dimensions tolerance, mm: (+0.00/-0.02)
Coatings: BBAR(R<0.5%)@450-680nm, AOI=0° +AR(R<1%)@1064nm,AOI=0°
Centration error: <2 arcmin
Material: N-SF57HT
ROC S2, mm: 225.205 +/-0.1
Center thickness, mm: 3
3
€205.00
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The biconcave lenses are used in optical systems in combination with other lenses. These lenses also work as beam expanders, optical character readers, viewers and projection systems.

  • Lower spherical aberrations than for Plano-Concave lenses
  • Diverges incident light
  • Ideal for Experimenting and Prototyping Applications

Properties (Diameter D, Focal length L)

D, mm

D, Inches

L Minimal, mm

L Maximal, mm

12,7

0.5

-12

-10.000

25,4

1

-25

-10.000

38,1

1.5

-40

-10.000

50,8

2

-50

-10.000

76,2

3

-75

-10.000


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