61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
Check the Series LineupCheck the Series Lineup"init">
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM 【AXEL GLOBAL】 アズワン
Contact us
SIGMAKOKI CO., LTD.
FeaturesFeatures class="init">
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
FeaturesFeatures class="init">
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM 【AXEL GLOBAL】 アズワン
Contact us
SIGMAKOKI CO., LTD.
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
特徴
- By combining two lenses with different refractive index wavelength dispersion into a single lens, chromatic aberration and spherical aberration can be reduced compared to a single spherical lens.
- It can be used as a telescope objective lens or a collimating lens for laser experiments.
- Optimization by lens design results in little change in focal length across the visible range.
- Since not only chromatic aberration but also spherical aberration are well corrected, it is ideal as a collimating lens for laser.
- It is corrected not only for aberrations of the on-axis object point, but also for off-axis coma and astigmatism.
- It can be used for imaging systems such as telescope objective lenses and microscope imaging lenses.
- It can be selected according to your specifications from a wide range of variations, subdivided by outer diameter size and focal length.
- Air gap type condensing lens (NYTL/NYDL) for laser processing is also available.
- * Use an achromatic lens when you want to focus an image at infinity or when you want to use a point light source that is parallel to the image.
- Sufficient optical performance cannot be obtained when the camera is used for close-range imaging.
- * The chromatic lens has an orientation that allows parallel light to enter the lens.
- * This function allows parallel light to enter from the side of the face with a small radius of curvature (the face pointed to by the arrow).
- * When parallel light is incident from the opposite side, chromatic aberration and spherical aberration occur, and the condensing spot becomes larger.
- Chromatic aberration may increase when the camera is used at wavelengths other than visible light.
- * Also, transparency may be reduced.
SpecSpec class="init">
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM 【AXEL GLOBAL】ASONE
Contact us
SIGMAKOKI CO., LTD.
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
Features
- By combining two lenses with different refractive index wavelength dispersion into a single lens, chromatic aberration and spherical aberration can be reduced compared to a single spherical lens.
- It can be used as a telescope objective lens or a collimating lens for laser experiments.
- Optimization by lens design results in little change in focal length across the visible range.
- Since not only chromatic aberration but also spherical aberration are well corrected, it is ideal as a collimating lens for laser.
- It is corrected not only for aberrations of the on-axis object point, but also for off-axis coma and astigmatism.
- It can be used for imaging systems such as telescope objective lenses and microscope imaging lenses.
- It can be selected according to your specifications from a wide range of variations, subdivided by outer diameter size and focal length.
- Air gap type condensing lens (NYTL/NYDL) for laser processing is also available.
- * Use an achromatic lens when you want to focus an image at infinity or when you want to use a point light source that is parallel to the image.
- Sufficient optical performance cannot be obtained when the camera is used for close-range imaging.
- * The chromatic lens has an orientation that allows parallel light to enter the lens.
- * This function allows parallel light to enter from the side of the face with a small radius of curvature (the face pointed to by the arrow).
- * When parallel light is incident from the opposite side, chromatic aberration and spherical aberration occur, and the condensing spot becomes larger.
- Chromatic aberration may increase when the camera is used at wavelengths other than visible light.
- * Also, transparency may be reduced.
Spec
- [
common specification]
- Material: BK7, SF2
- Design wavelength: Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
- Coating: Reflective prevention film
- Adhesive: Ultraviolet curing type adhesive
- Laser durability: 0.3J/cm2 (pulse width 10ns, Repeat frequency 20Hz)
- Scratch - dig: 40?20
- Effective diameter: 90% of the outer diameter
- [Individual specification]
- Outer diameter φD: φ20mm
- Focus distance f: 70.1mm
- Edge thickness te: 5.2mm
- Center thickness tc: 6.9mm
- Back focus fb: 66.7mm
- Eccentricity: <1′
- RoHS conform product
-
Order No.
61-6920-73
Model No.
DLB-20-70PM
Standard price
JPY: 10,300
USD: 64.57
Excange rate 1USD= 159.53JPY
Valid price in Japan
Quantity
1piece
Stock in Japan
Supplier Stock
Product Variations (Different Sizes, Specifications, Optional Products, etc.)
Product image
Order No.
Name
Model No.
Quantity
Standard price
Valid price in Japan
Stock
[Supplier Stock]

61-6920-44
Achromatic Doublets φ10mm Focal Length 20mm DLB-10-20PM
DLB-10-20PM
1piece
JPY: 8,400
USD: 52.66


61-6920-45
Achromatic Doublets φ10mm Focal Length 25mm DLB-10-25PM
DLB-10-25PM
1piece
JPY: 8,400
USD: 52.66


61-6920-46
Achromatic Doublets φ10mm Focal Length 30.1mm DLB-10-30PM
DLB-10-30PM
1piece
JPY: 7,900
USD: 49.52


61-6920-47
Achromatic Doublets φ10mm Focal Length 40mm DLB-10-40PM
DLB-10-40PM
1piece
JPY: 7,500
USD: 47.01


61-6920-48
Achromatic Doublets φ10mm Focal Length 50mm DLB-10-50PM
DLB-10-50PM
1piece
JPY: 7,000
USD: 43.88


61-6920-49
Achromatic Doublets φ10mm Focal Length 60.1mm DLB-10-60PM
DLB-10-60PM
1piece
JPY: 6,600
USD: 41.37


61-6920-50
Achromatic Doublets φ10mm Focal Length 69.9mm DLB-10-70PM
DLB-10-70PM
1piece
JPY: 6,600
USD: 41.37


61-6920-51
Achromatic Doublets φ10mm Focal Length 80.1mm DLB-10-80PM
DLB-10-80PM
1piece
JPY: 6,600
USD: 41.37


61-6920-52
Achromatic Doublets φ10mm Focal Length 100.5mm DLB-10-100PM
DLB-10-100PM
1piece
JPY: 6,600
USD: 41.37


61-6920-53
Achromatic Doublets φ12.7mm Focal Length 25.1mm DLB-12.7-25PM
DLB-12.7-25PM
1piece
JPY: 12,200
USD: 76.48


61-6920-54
Achromatic Doublets φ12.7mm Focal Length 30mm DLB-12.7-30PM
DLB-12.7-30PM
1piece
JPY: 10,300
USD: 64.57


61-6920-55
Achromatic Doublets φ12.7mm Focal Length 40.1mm DLB-12.7-40PM
DLB-12.7-40PM
1piece
JPY: 10,300
USD: 64.57


61-6920-56
Achromatic Doublets φ12.7mm Focal Length 50.1mm DLB-12.7-50PM
DLB-12.7-50PM
1piece
JPY: 8,400
USD: 52.66


61-6920-57
Achromatic Doublets φ12.7mm Focal Length 60mm DLB-12.7-60PM
DLB-12.7-60PM
1piece
JPY: 8,400
USD: 52.66


61-6920-58
Achromatic Doublets φ12.7mm Focal Length 69.9mm DLB-12.7-70PM
DLB-12.7-70PM
1piece
JPY: 8,400
USD: 52.66


61-6920-59
Achromatic Doublets φ12.7mm Focal Length 79.9mm DLB-12.7-80PM
DLB-12.7-80PM
1piece
JPY: 8,400
USD: 52.66


61-6920-60
Achromatic Doublets φ12.7mm Focal Length 100.1mm DLB-12.7-100PM
DLB-12.7-100PM
1piece
JPY: 7,500
USD: 47.01


61-6920-61
Achromatic Doublets φ15mm Focal Length 25.2mm DLB-15-25PM
DLB-15-25PM
1piece
JPY: 12,200
USD: 76.48


61-6920-62
Achromatic Doublets φ15mm Focal Length 30.1mm DLB-15-30PM
DLB-15-30PM
1piece
JPY: 11,300
USD: 70.83


61-6920-63
Achromatic Doublets φ15mm Focal Length 40.1mm DLB-15-40PM
DLB-15-40PM
1piece
JPY: 10,300
USD: 64.57


61-6920-64
Achromatic Doublets φ15mm Focal Length 50.1mm DLB-15-50PM
DLB-15-50PM
1piece
JPY: 10,300
USD: 64.57


61-6920-65
Achromatic Doublets φ15mm Focal Length 59.9mm DLB-15-60PM
DLB-15-60PM
1piece
JPY: 9,400
USD: 58.92


61-6920-66
Achromatic Doublets φ15mm Focal Length 70.2mm DLB-15-70PM
DLB-15-70PM
1piece
JPY: 8,400
USD: 52.66


61-6920-67
Achromatic Doublets φ15mm Focal Length 79.9mm DLB-15-80PM
DLB-15-80PM
1piece
JPY: 8,400
USD: 52.66


61-6920-68
Achromatic Doublets φ15mm Focal Length 100mm DLB-15-100PM
DLB-15-100PM
1piece
JPY: 7,500
USD: 47.01


61-6920-69
Achromatic Doublets φ20mm Focal Length 30.6mm DLB-20-30PM
DLB-20-30PM
1piece
JPY: 14,100
USD: 88.39


61-6920-70
Achromatic Doublets φ20mm Focal Length 40.1mm DLB-20-40PM
DLB-20-40PM
1piece
JPY: 13,200
USD: 82.74


61-6920-71
Achromatic Doublets φ20mm Focal Length 50.2mm DLB-20-50PM
DLB-20-50PM
1piece
JPY: 12,200
USD: 76.48


61-6920-72
Achromatic Doublets φ20mm Focal Length 60.2mm DLB-20-60PM
DLB-20-60PM
1piece
JPY: 11,300
USD: 70.83


61-6920-73
Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
DLB-20-70PM
1piece
JPY: 10,300
USD: 64.57


61-6920-74
Achromatic Doublets φ20mm Focal Length 79.9mm DLB-20-80PM
DLB-20-80PM
1piece
JPY: 9,400
USD: 58.92


61-6920-75
Achromatic Doublets φ20mm Focal Length 99.5mm DLB-20-100PM
DLB-20-100PM
1piece
JPY: 8,400
USD: 52.66


61-6920-76
Achromatic Doublets φ20mm Focal Length 120.3mm DLB-20-120PM
DLB-20-120PM
1piece
JPY: 8,400
USD: 52.66


61-6920-77
Achromatic Doublets φ20mm Focal Length 149.8mm DLB-20-150PM
DLB-20-150PM
1piece
JPY: 8,400
USD: 52.66


61-6920-78
Achromatic Doublets φ20mm Focal Length 170mm DLB-20-170PM
DLB-20-170PM
1piece
JPY: 8,400
USD: 52.66


61-6920-79
Achromatic Doublets φ20mm Focal Length 200.1mm DLB-20-200PM
DLB-20-200PM
1piece
JPY: 8,400
USD: 52.66


61-6920-80
Achromatic Doublets φ20mm Focal Length 220mm DLB-20-220PM
DLB-20-220PM
1piece
JPY: 8,400
USD: 52.66


61-6920-81
Achromatic Doublets φ20mm Focal Length 250mm DLB-20-250PM
DLB-20-250PM
1piece
JPY: 8,400
USD: 52.66


61-6920-82
Achromatic Doublets φ20mm Focal Length 300mm DLB-20-300PM
DLB-20-300PM
1piece
JPY: 8,400
USD: 52.66


61-6920-83
Achromatic Doublets φ25mm Focal Length 40.9mm DLB2540PM
DLB2540PM
1piece
JPY: 14,600
USD: 91.52


61-6920-84
Achromatic Doublets φ25mm Focal Length 50.1mm DLB-25-50PM
DLB-25-50PM
1piece
JPY: 14,100
USD: 88.39


61-6920-85
Achromatic Doublets φ25mm Focal Length 60.1mm DLB-25-60PM
DLB-25-60PM
1piece
JPY: 13,200
USD: 82.74


61-6920-86
Achromatic Doublets φ25mm Focal Length 69.9mm DLB2570PM
DLB2570PM
1piece
JPY: 12,200
USD: 76.48


61-6920-87
Achromatic Doublets φ25mm Focal Length 80mm DLB-25-80PM
DLB-25-80PM
1piece
JPY: 11,300
USD: 70.83


61-6920-88
Achromatic Doublets φ25mm Focal Length 100.2mm DLB-25-100PM
DLB-25-100PM
1piece
JPY: 10,300
USD: 64.57


61-6920-89
Achromatic Doublets φ25mm Focal Length 119.8mm DLB-25-120PM
DLB-25-120PM
1piece
JPY: 10,300
USD: 64.57


61-6920-90
Achromatic Doublets φ25mm Focal Length 149.6mm DLB-25-150PM
DLB-25-150PM
1piece
JPY: 10,300
USD: 64.57


61-6920-91
Achromatic Doublets φ25mm Focal Length 170.4mm DLB-25-170PM
DLB-25-170PM
1piece
JPY: 10,300
USD: 64.57


61-6920-92
Achromatic Doublets φ25mm Focal Length 200.1mm DLB-25-200PM
DLB-25-200PM
1piece
JPY: 10,300
USD: 64.57


61-6920-93
Achromatic Doublets φ25mm Focal Length 222mm DLB-25-220PM
DLB-25-220PM
1piece
JPY: 10,300
USD: 64.57


61-6920-94
Achromatic Doublets φ25mm Focal Length 250.8mm DLB-25-250PM
DLB-25-250PM
1piece
JPY: 10,300
USD: 64.57


61-6920-95
Achromatic Doublets φ25mm Focal Length 300mm DLB-25-300PM
DLB-25-300PM
1piece
JPY: 10,300
USD: 64.57

61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
特徴
- By combining two lenses with different refractive index wavelength dispersion into a single lens, chromatic aberration and spherical aberration can be reduced compared to a single spherical lens.
- It can be used as a telescope objective lens or a collimating lens for laser experiments.
- Optimization by lens design results in little change in focal length across the visible range.
- Since not only chromatic aberration but also spherical aberration are well corrected, it is ideal as a collimating lens for laser.
- It is corrected not only for aberrations of the on-axis object point, but also for off-axis coma and astigmatism.
- It can be used for imaging systems such as telescope objective lenses and microscope imaging lenses.
- It can be selected according to your specifications from a wide range of variations, subdivided by outer diameter size and focal length.
- Air gap type condensing lens (NYTL/NYDL) for laser processing is also available.
- * Use an achromatic lens when you want to focus an image at infinity or when you want to use a point light source that is parallel to the image.
- Sufficient optical performance cannot be obtained when the camera is used for close-range imaging.
- * The chromatic lens has an orientation that allows parallel light to enter the lens.
- * This function allows parallel light to enter from the side of the face with a small radius of curvature (the face pointed to by the arrow).
- * When parallel light is incident from the opposite side, chromatic aberration and spherical aberration occur, and the condensing spot becomes larger.
- Chromatic aberration may increase when the camera is used at wavelengths other than visible light.
- * Also, transparency may be reduced.
SpecSpec class="init">
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM 【AXEL GLOBAL】ASONE
Contact us
SIGMAKOKI CO., LTD.
61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
Features
- By combining two lenses with different refractive index wavelength dispersion into a single lens, chromatic aberration and spherical aberration can be reduced compared to a single spherical lens.
- It can be used as a telescope objective lens or a collimating lens for laser experiments.
- Optimization by lens design results in little change in focal length across the visible range.
- Since not only chromatic aberration but also spherical aberration are well corrected, it is ideal as a collimating lens for laser.
- It is corrected not only for aberrations of the on-axis object point, but also for off-axis coma and astigmatism.
- It can be used for imaging systems such as telescope objective lenses and microscope imaging lenses.
- It can be selected according to your specifications from a wide range of variations, subdivided by outer diameter size and focal length.
- Air gap type condensing lens (NYTL/NYDL) for laser processing is also available.
- * Use an achromatic lens when you want to focus an image at infinity or when you want to use a point light source that is parallel to the image.
- Sufficient optical performance cannot be obtained when the camera is used for close-range imaging.
- * The chromatic lens has an orientation that allows parallel light to enter the lens.
- * This function allows parallel light to enter from the side of the face with a small radius of curvature (the face pointed to by the arrow).
- * When parallel light is incident from the opposite side, chromatic aberration and spherical aberration occur, and the condensing spot becomes larger.
- Chromatic aberration may increase when the camera is used at wavelengths other than visible light.
- * Also, transparency may be reduced.
Spec
- [
common specification]
- Material: BK7, SF2
- Design wavelength: Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
- Coating: Reflective prevention film
- Adhesive: Ultraviolet curing type adhesive
- Laser durability: 0.3J/cm2 (pulse width 10ns, Repeat frequency 20Hz)
- Scratch - dig: 40?20
- Effective diameter: 90% of the outer diameter
- [Individual specification]
- Outer diameter φD: φ20mm
- Focus distance f: 70.1mm
- Edge thickness te: 5.2mm
- Center thickness tc: 6.9mm
- Back focus fb: 66.7mm
- Eccentricity: <1′
- RoHS conform product
-
Order No.
61-6920-73
Model No.
DLB-20-70PM
Standard price
JPY: 10,300
USD: 64.57
Excange rate 1USD= 159.53JPY
Valid price in Japan
Quantity
1piece
Stock in Japan
Supplier Stock
Product Variations (Different Sizes, Specifications, Optional Products, etc.)
Product image
Order No.
Name
Model No.
Quantity
Standard price
Valid price in Japan
Stock
[Supplier Stock]

61-6920-44
Achromatic Doublets φ10mm Focal Length 20mm DLB-10-20PM
DLB-10-20PM
1piece
JPY: 8,400
USD: 52.66


61-6920-45
Achromatic Doublets φ10mm Focal Length 25mm DLB-10-25PM
DLB-10-25PM
1piece
JPY: 8,400
USD: 52.66


61-6920-46
Achromatic Doublets φ10mm Focal Length 30.1mm DLB-10-30PM
DLB-10-30PM
1piece
JPY: 7,900
USD: 49.52


61-6920-47
Achromatic Doublets φ10mm Focal Length 40mm DLB-10-40PM
DLB-10-40PM
1piece
JPY: 7,500
USD: 47.01


61-6920-48
Achromatic Doublets φ10mm Focal Length 50mm DLB-10-50PM
DLB-10-50PM
1piece
JPY: 7,000
USD: 43.88


61-6920-49
Achromatic Doublets φ10mm Focal Length 60.1mm DLB-10-60PM
DLB-10-60PM
1piece
JPY: 6,600
USD: 41.37


61-6920-50
Achromatic Doublets φ10mm Focal Length 69.9mm DLB-10-70PM
DLB-10-70PM
1piece
JPY: 6,600
USD: 41.37


61-6920-51
Achromatic Doublets φ10mm Focal Length 80.1mm DLB-10-80PM
DLB-10-80PM
1piece
JPY: 6,600
USD: 41.37


61-6920-52
Achromatic Doublets φ10mm Focal Length 100.5mm DLB-10-100PM
DLB-10-100PM
1piece
JPY: 6,600
USD: 41.37


61-6920-53
Achromatic Doublets φ12.7mm Focal Length 25.1mm DLB-12.7-25PM
DLB-12.7-25PM
1piece
JPY: 12,200
USD: 76.48


61-6920-54
Achromatic Doublets φ12.7mm Focal Length 30mm DLB-12.7-30PM
DLB-12.7-30PM
1piece
JPY: 10,300
USD: 64.57


61-6920-55
Achromatic Doublets φ12.7mm Focal Length 40.1mm DLB-12.7-40PM
DLB-12.7-40PM
1piece
JPY: 10,300
USD: 64.57


61-6920-56
Achromatic Doublets φ12.7mm Focal Length 50.1mm DLB-12.7-50PM
DLB-12.7-50PM
1piece
JPY: 8,400
USD: 52.66


61-6920-57
Achromatic Doublets φ12.7mm Focal Length 60mm DLB-12.7-60PM
DLB-12.7-60PM
1piece
JPY: 8,400
USD: 52.66


61-6920-58
Achromatic Doublets φ12.7mm Focal Length 69.9mm DLB-12.7-70PM
DLB-12.7-70PM
1piece
JPY: 8,400
USD: 52.66


61-6920-59
Achromatic Doublets φ12.7mm Focal Length 79.9mm DLB-12.7-80PM
DLB-12.7-80PM
1piece
JPY: 8,400
USD: 52.66


61-6920-60
Achromatic Doublets φ12.7mm Focal Length 100.1mm DLB-12.7-100PM
DLB-12.7-100PM
1piece
JPY: 7,500
USD: 47.01


61-6920-61
Achromatic Doublets φ15mm Focal Length 25.2mm DLB-15-25PM
DLB-15-25PM
1piece
JPY: 12,200
USD: 76.48


61-6920-62
Achromatic Doublets φ15mm Focal Length 30.1mm DLB-15-30PM
DLB-15-30PM
1piece
JPY: 11,300
USD: 70.83


61-6920-63
Achromatic Doublets φ15mm Focal Length 40.1mm DLB-15-40PM
DLB-15-40PM
1piece
JPY: 10,300
USD: 64.57


61-6920-64
Achromatic Doublets φ15mm Focal Length 50.1mm DLB-15-50PM
DLB-15-50PM
1piece
JPY: 10,300
USD: 64.57


61-6920-65
Achromatic Doublets φ15mm Focal Length 59.9mm DLB-15-60PM
DLB-15-60PM
1piece
JPY: 9,400
USD: 58.92


61-6920-66
Achromatic Doublets φ15mm Focal Length 70.2mm DLB-15-70PM
DLB-15-70PM
1piece
JPY: 8,400
USD: 52.66


61-6920-67
Achromatic Doublets φ15mm Focal Length 79.9mm DLB-15-80PM
DLB-15-80PM
1piece
JPY: 8,400
USD: 52.66


61-6920-68
Achromatic Doublets φ15mm Focal Length 100mm DLB-15-100PM
DLB-15-100PM
1piece
JPY: 7,500
USD: 47.01


61-6920-69
Achromatic Doublets φ20mm Focal Length 30.6mm DLB-20-30PM
DLB-20-30PM
1piece
JPY: 14,100
USD: 88.39


61-6920-70
Achromatic Doublets φ20mm Focal Length 40.1mm DLB-20-40PM
DLB-20-40PM
1piece
JPY: 13,200
USD: 82.74


61-6920-71
Achromatic Doublets φ20mm Focal Length 50.2mm DLB-20-50PM
DLB-20-50PM
1piece
JPY: 12,200
USD: 76.48


61-6920-72
Achromatic Doublets φ20mm Focal Length 60.2mm DLB-20-60PM
DLB-20-60PM
1piece
JPY: 11,300
USD: 70.83


61-6920-73
Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
DLB-20-70PM
1piece
JPY: 10,300
USD: 64.57


61-6920-74
Achromatic Doublets φ20mm Focal Length 79.9mm DLB-20-80PM
DLB-20-80PM
1piece
JPY: 9,400
USD: 58.92


61-6920-75
Achromatic Doublets φ20mm Focal Length 99.5mm DLB-20-100PM
DLB-20-100PM
1piece
JPY: 8,400
USD: 52.66


61-6920-76
Achromatic Doublets φ20mm Focal Length 120.3mm DLB-20-120PM
DLB-20-120PM
1piece
JPY: 8,400
USD: 52.66


61-6920-77
Achromatic Doublets φ20mm Focal Length 149.8mm DLB-20-150PM
DLB-20-150PM
1piece
JPY: 8,400
USD: 52.66


61-6920-78
Achromatic Doublets φ20mm Focal Length 170mm DLB-20-170PM
DLB-20-170PM
1piece
JPY: 8,400
USD: 52.66


61-6920-79
Achromatic Doublets φ20mm Focal Length 200.1mm DLB-20-200PM
DLB-20-200PM
1piece
JPY: 8,400
USD: 52.66


61-6920-80
Achromatic Doublets φ20mm Focal Length 220mm DLB-20-220PM
DLB-20-220PM
1piece
JPY: 8,400
USD: 52.66


61-6920-81
Achromatic Doublets φ20mm Focal Length 250mm DLB-20-250PM
DLB-20-250PM
1piece
JPY: 8,400
USD: 52.66


61-6920-82
Achromatic Doublets φ20mm Focal Length 300mm DLB-20-300PM
DLB-20-300PM
1piece
JPY: 8,400
USD: 52.66


61-6920-83
Achromatic Doublets φ25mm Focal Length 40.9mm DLB2540PM
DLB2540PM
1piece
JPY: 14,600
USD: 91.52


61-6920-84
Achromatic Doublets φ25mm Focal Length 50.1mm DLB-25-50PM
DLB-25-50PM
1piece
JPY: 14,100
USD: 88.39


61-6920-85
Achromatic Doublets φ25mm Focal Length 60.1mm DLB-25-60PM
DLB-25-60PM
1piece
JPY: 13,200
USD: 82.74


61-6920-86
Achromatic Doublets φ25mm Focal Length 69.9mm DLB2570PM
DLB2570PM
1piece
JPY: 12,200
USD: 76.48


61-6920-87
Achromatic Doublets φ25mm Focal Length 80mm DLB-25-80PM
DLB-25-80PM
1piece
JPY: 11,300
USD: 70.83


61-6920-88
Achromatic Doublets φ25mm Focal Length 100.2mm DLB-25-100PM
DLB-25-100PM
1piece
JPY: 10,300
USD: 64.57


61-6920-89
Achromatic Doublets φ25mm Focal Length 119.8mm DLB-25-120PM
DLB-25-120PM
1piece
JPY: 10,300
USD: 64.57


61-6920-90
Achromatic Doublets φ25mm Focal Length 149.6mm DLB-25-150PM
DLB-25-150PM
1piece
JPY: 10,300
USD: 64.57


61-6920-91
Achromatic Doublets φ25mm Focal Length 170.4mm DLB-25-170PM
DLB-25-170PM
1piece
JPY: 10,300
USD: 64.57


61-6920-92
Achromatic Doublets φ25mm Focal Length 200.1mm DLB-25-200PM
DLB-25-200PM
1piece
JPY: 10,300
USD: 64.57


61-6920-93
Achromatic Doublets φ25mm Focal Length 222mm DLB-25-220PM
DLB-25-220PM
1piece
JPY: 10,300
USD: 64.57


61-6920-94
Achromatic Doublets φ25mm Focal Length 250.8mm DLB-25-250PM
DLB-25-250PM
1piece
JPY: 10,300
USD: 64.57


61-6920-95
Achromatic Doublets φ25mm Focal Length 300mm DLB-25-300PM
DLB-25-300PM
1piece
JPY: 10,300
USD: 64.57

61-6920-73 Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM
Features
- By combining two lenses with different refractive index wavelength dispersion into a single lens, chromatic aberration and spherical aberration can be reduced compared to a single spherical lens.
- It can be used as a telescope objective lens or a collimating lens for laser experiments.
- Optimization by lens design results in little change in focal length across the visible range.
- Since not only chromatic aberration but also spherical aberration are well corrected, it is ideal as a collimating lens for laser.
- It is corrected not only for aberrations of the on-axis object point, but also for off-axis coma and astigmatism.
- It can be used for imaging systems such as telescope objective lenses and microscope imaging lenses.
- It can be selected according to your specifications from a wide range of variations, subdivided by outer diameter size and focal length.
- Air gap type condensing lens (NYTL/NYDL) for laser processing is also available.
- * Use an achromatic lens when you want to focus an image at infinity or when you want to use a point light source that is parallel to the image.
- Sufficient optical performance cannot be obtained when the camera is used for close-range imaging.
- * The chromatic lens has an orientation that allows parallel light to enter the lens.
- * This function allows parallel light to enter from the side of the face with a small radius of curvature (the face pointed to by the arrow).
- * When parallel light is incident from the opposite side, chromatic aberration and spherical aberration occur, and the condensing spot becomes larger.
- Chromatic aberration may increase when the camera is used at wavelengths other than visible light.
- * Also, transparency may be reduced.
Spec
- [
common specification] - Material: BK7, SF2
- Design wavelength: Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
- Coating: Reflective prevention film
- Adhesive: Ultraviolet curing type adhesive
- Laser durability: 0.3J/cm2 (pulse width 10ns, Repeat frequency 20Hz)
- Scratch - dig: 40?20
- Effective diameter: 90% of the outer diameter
- [Individual specification]
- Outer diameter φD: φ20mm
- Focus distance f: 70.1mm
- Edge thickness te: 5.2mm
- Center thickness tc: 6.9mm
- Back focus fb: 66.7mm
- Eccentricity: <1′
- RoHS conform product
| Order No. | 61-6920-73 | |
|---|---|---|
| Model No. | DLB-20-70PM | |
| Standard price |
JPY: 10,300
USD: 64.57
Excange rate 1USD= 159.53JPY
Valid price in Japan |
|
| Quantity | 1piece | |
| Stock in Japan |
|
|
| Supplier Stock |
|
|
Product Variations (Different Sizes, Specifications, Optional Products, etc.)
| Product image | Order No. | Name | Model No. | Quantity | Standard price | Valid price in Japan | Stock [Supplier Stock] |
|
|---|---|---|---|---|---|---|---|---|
![]() |
61-6920-44 | Achromatic Doublets φ10mm Focal Length 20mm DLB-10-20PM | DLB-10-20PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-45 | Achromatic Doublets φ10mm Focal Length 25mm DLB-10-25PM | DLB-10-25PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-46 | Achromatic Doublets φ10mm Focal Length 30.1mm DLB-10-30PM | DLB-10-30PM | 1piece | JPY: 7,900 | USD: 49.52 |
|
|
![]() |
61-6920-47 | Achromatic Doublets φ10mm Focal Length 40mm DLB-10-40PM | DLB-10-40PM | 1piece | JPY: 7,500 | USD: 47.01 |
|
|
![]() |
61-6920-48 | Achromatic Doublets φ10mm Focal Length 50mm DLB-10-50PM | DLB-10-50PM | 1piece | JPY: 7,000 | USD: 43.88 |
|
|
![]() |
61-6920-49 | Achromatic Doublets φ10mm Focal Length 60.1mm DLB-10-60PM | DLB-10-60PM | 1piece | JPY: 6,600 | USD: 41.37 |
|
|
![]() |
61-6920-50 | Achromatic Doublets φ10mm Focal Length 69.9mm DLB-10-70PM | DLB-10-70PM | 1piece | JPY: 6,600 | USD: 41.37 |
|
|
![]() |
61-6920-51 | Achromatic Doublets φ10mm Focal Length 80.1mm DLB-10-80PM | DLB-10-80PM | 1piece | JPY: 6,600 | USD: 41.37 |
|
|
![]() |
61-6920-52 | Achromatic Doublets φ10mm Focal Length 100.5mm DLB-10-100PM | DLB-10-100PM | 1piece | JPY: 6,600 | USD: 41.37 |
|
|
![]() |
61-6920-53 | Achromatic Doublets φ12.7mm Focal Length 25.1mm DLB-12.7-25PM | DLB-12.7-25PM | 1piece | JPY: 12,200 | USD: 76.48 |
|
|
![]() |
61-6920-54 | Achromatic Doublets φ12.7mm Focal Length 30mm DLB-12.7-30PM | DLB-12.7-30PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-55 | Achromatic Doublets φ12.7mm Focal Length 40.1mm DLB-12.7-40PM | DLB-12.7-40PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-56 | Achromatic Doublets φ12.7mm Focal Length 50.1mm DLB-12.7-50PM | DLB-12.7-50PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-57 | Achromatic Doublets φ12.7mm Focal Length 60mm DLB-12.7-60PM | DLB-12.7-60PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-58 | Achromatic Doublets φ12.7mm Focal Length 69.9mm DLB-12.7-70PM | DLB-12.7-70PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-59 | Achromatic Doublets φ12.7mm Focal Length 79.9mm DLB-12.7-80PM | DLB-12.7-80PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-60 | Achromatic Doublets φ12.7mm Focal Length 100.1mm DLB-12.7-100PM | DLB-12.7-100PM | 1piece | JPY: 7,500 | USD: 47.01 |
|
|
![]() |
61-6920-61 | Achromatic Doublets φ15mm Focal Length 25.2mm DLB-15-25PM | DLB-15-25PM | 1piece | JPY: 12,200 | USD: 76.48 |
|
|
![]() |
61-6920-62 | Achromatic Doublets φ15mm Focal Length 30.1mm DLB-15-30PM | DLB-15-30PM | 1piece | JPY: 11,300 | USD: 70.83 |
|
|
![]() |
61-6920-63 | Achromatic Doublets φ15mm Focal Length 40.1mm DLB-15-40PM | DLB-15-40PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-64 | Achromatic Doublets φ15mm Focal Length 50.1mm DLB-15-50PM | DLB-15-50PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-65 | Achromatic Doublets φ15mm Focal Length 59.9mm DLB-15-60PM | DLB-15-60PM | 1piece | JPY: 9,400 | USD: 58.92 |
|
|
![]() |
61-6920-66 | Achromatic Doublets φ15mm Focal Length 70.2mm DLB-15-70PM | DLB-15-70PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-67 | Achromatic Doublets φ15mm Focal Length 79.9mm DLB-15-80PM | DLB-15-80PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-68 | Achromatic Doublets φ15mm Focal Length 100mm DLB-15-100PM | DLB-15-100PM | 1piece | JPY: 7,500 | USD: 47.01 |
|
|
![]() |
61-6920-69 | Achromatic Doublets φ20mm Focal Length 30.6mm DLB-20-30PM | DLB-20-30PM | 1piece | JPY: 14,100 | USD: 88.39 |
|
|
![]() |
61-6920-70 | Achromatic Doublets φ20mm Focal Length 40.1mm DLB-20-40PM | DLB-20-40PM | 1piece | JPY: 13,200 | USD: 82.74 |
|
|
![]() |
61-6920-71 | Achromatic Doublets φ20mm Focal Length 50.2mm DLB-20-50PM | DLB-20-50PM | 1piece | JPY: 12,200 | USD: 76.48 |
|
|
![]() |
61-6920-72 | Achromatic Doublets φ20mm Focal Length 60.2mm DLB-20-60PM | DLB-20-60PM | 1piece | JPY: 11,300 | USD: 70.83 |
|
|
![]() |
61-6920-73 | Achromatic Doublets φ20mm Focal Length 70.1mm DLB-20-70PM | DLB-20-70PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-74 | Achromatic Doublets φ20mm Focal Length 79.9mm DLB-20-80PM | DLB-20-80PM | 1piece | JPY: 9,400 | USD: 58.92 |
|
|
![]() |
61-6920-75 | Achromatic Doublets φ20mm Focal Length 99.5mm DLB-20-100PM | DLB-20-100PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-76 | Achromatic Doublets φ20mm Focal Length 120.3mm DLB-20-120PM | DLB-20-120PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-77 | Achromatic Doublets φ20mm Focal Length 149.8mm DLB-20-150PM | DLB-20-150PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-78 | Achromatic Doublets φ20mm Focal Length 170mm DLB-20-170PM | DLB-20-170PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-79 | Achromatic Doublets φ20mm Focal Length 200.1mm DLB-20-200PM | DLB-20-200PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-80 | Achromatic Doublets φ20mm Focal Length 220mm DLB-20-220PM | DLB-20-220PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-81 | Achromatic Doublets φ20mm Focal Length 250mm DLB-20-250PM | DLB-20-250PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-82 | Achromatic Doublets φ20mm Focal Length 300mm DLB-20-300PM | DLB-20-300PM | 1piece | JPY: 8,400 | USD: 52.66 |
|
|
![]() |
61-6920-83 | Achromatic Doublets φ25mm Focal Length 40.9mm DLB2540PM | DLB2540PM | 1piece | JPY: 14,600 | USD: 91.52 |
|
|
![]() |
61-6920-84 | Achromatic Doublets φ25mm Focal Length 50.1mm DLB-25-50PM | DLB-25-50PM | 1piece | JPY: 14,100 | USD: 88.39 |
|
|
![]() |
61-6920-85 | Achromatic Doublets φ25mm Focal Length 60.1mm DLB-25-60PM | DLB-25-60PM | 1piece | JPY: 13,200 | USD: 82.74 |
|
|
![]() |
61-6920-86 | Achromatic Doublets φ25mm Focal Length 69.9mm DLB2570PM | DLB2570PM | 1piece | JPY: 12,200 | USD: 76.48 |
|
|
![]() |
61-6920-87 | Achromatic Doublets φ25mm Focal Length 80mm DLB-25-80PM | DLB-25-80PM | 1piece | JPY: 11,300 | USD: 70.83 |
|
|
![]() |
61-6920-88 | Achromatic Doublets φ25mm Focal Length 100.2mm DLB-25-100PM | DLB-25-100PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-89 | Achromatic Doublets φ25mm Focal Length 119.8mm DLB-25-120PM | DLB-25-120PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-90 | Achromatic Doublets φ25mm Focal Length 149.6mm DLB-25-150PM | DLB-25-150PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-91 | Achromatic Doublets φ25mm Focal Length 170.4mm DLB-25-170PM | DLB-25-170PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-92 | Achromatic Doublets φ25mm Focal Length 200.1mm DLB-25-200PM | DLB-25-200PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-93 | Achromatic Doublets φ25mm Focal Length 222mm DLB-25-220PM | DLB-25-220PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-94 | Achromatic Doublets φ25mm Focal Length 250.8mm DLB-25-250PM | DLB-25-250PM | 1piece | JPY: 10,300 | USD: 64.57 |
|
|
![]() |
61-6920-95 | Achromatic Doublets φ25mm Focal Length 300mm DLB-25-300PM | DLB-25-300PM | 1piece | JPY: 10,300 | USD: 64.57 |
|



