Double Concave Lens
A double concave lens/double concave mirrorhas a negative focal length, thereby causing collimated incident light to diverge. The double concave lens/mirror has an equal radius of curvature on both sides of the lens. They are generally used to expand light or increase focal length in the existing system, such as beam expander and projection systems.
Description Of Double Concave Lens/Mirror
The double concave lens of Ecoptik has a negative focal length, thereby causing collimated incident light to diverge. A double concave lens has an equal radius of curvature on both sides of the lens.
Specifications Of Double Concave Lens/Mirror
Material |
Optical glass/ Fused silica/ sapphire etc. |
Diameter |
2mm~300mm |
Diameter tolerance |
±0.05mm(≤50mm) |
±0.1mm(>50mm) |
|
Focal length |
-50mm~-2000mm |
Focal length tolerance |
±0.2%(<10mm) |
±0.5%(<10mm-1000mm) |
|
±1%(<>1000mm) |
|
Center Thickness |
2mm~20mm |
Surface quality |
60/40, 40/20, 20/10 |
Surface accuracy |
|
Clear Aperture |
>85% dig diameter |
Centration |
<3arc min~ 30arc sec |
Coating |
As per customer’s request |
Material |
Diameter (mm) |
Surface Radius 1 (mm) |
Surface Radius 2 (mm) |
Center Thickness (mm) |
Focal Length (mm) |
H-ZK3 |
5 |
-14.4 |
-14.4 |
3 |
-9.8 |
H-ZF6 |
8 |
-7.2 |
-30.5 |
5 |
-7.4 |
H-K9L |
10 |
-11.1 |
-11.1 |
2 |
-10.4 |
JGS1 |
10 |
-9.25 |
-9.25 |
-9.8 |
|
H-ZF7LA |
11 |
-11.9 |
-11.9 |
2 |
-7.1 |
H-K9L |
12 |
-25.1 |
-25.1 |
-24 |
|
BAF3 |
12 |
-19.5 |
-47.1 |
2 |
-23.4 |
ZF11 |
12 |
-12.6 |
-12.6 |
3 |
-7.4 |
H-K9L |
-103 |
-103 |
-98.9 |
||
H-ZF6 |
13 |
-30.6 |
-154 |
3 |
-33.5 |
H-LAK7 |
13 |
-48.9 |
-27.7 |
2 |
-24.4 |
H-ZK2 |
13 |
-12.1 |
-15.7 |
1 |
-11.3 |
H-ZF6 |
-34.7 |
-79.6 |
-31.6 |
||
H-ZF2 |
14 |
-36.2 |
-192 |
3 |
-45 |
H-ZF6 |
14 |
-34.7 |
-79.6 |
3 |
-31.6 |
H-LAK53A |
14 |
-31.7 |
-58.8 |
-27 |
|
H-K9L |
14 |
-27.9 |
-32.2 |
2 |
-19 |
H-ZF6 |
15 |
-23 |
-27.7 |
-16.4 |
|
H-ZF6 |
15 |
-27.5 |
-23.6 |
-16.4 |
|
H-F3 |
15 |
-50.5 |
-11.3 |
-14.8 |
|
N-SF6 |
15 |
-13.2 |
-12.1 |
2 |
-7.4 |
H-ZF3 |
16 |
-30.6 |
-15.8 |
3 |
-14.6 |
H-LAF50B |
-16.8 |
-17.8 |
-11 |
||
H-LAF50B |
-37.2 |
-37.2 |
3 |
-23.9 |
|
H-K9L |
20 |
-299 |
-85.4 |
2 |
-128 |
H-ZF52A |
20 |
-51.6 |
-21 |
-16.7 |
|
H-ZF6 |
21 |
-77.4 |
-77.4 |
-51 |
|
H-ZF7LA |
21 |
-42.6 |
-184 |
-42.8 |
|
H-ZF7LA |
22 |
-255 |
-16.2 |
9 |
-18.7 |
H-K9L |
24 |
-11.1 |
-90 |
1 |
-18.9 |
JGS1 |
25 |
-92.1 |
-92.1 |
-100 |
|
H-K9L |
25 |
-52.1 |
-52.1 |
-50 |
|
H-LAF4 |
25 |
-38.4 |
-38.4 |
-25.4 |
|
H-F4 |
25 |
-36.7 |
-29.2 |
3 |
-25 |
ZK9 |
27 |
-149 |
-52.9 |
-62.7 |
|
H-ZK21 |
-281 |
-23.8 |
3 |
-35 |
|
BaK2 |
-2249 |
-80.2 |
2 |
-143 |
|
JGS1 |
30 |
-71 |
-71 |
3 |
-77 |
BaK2 |
-2249 |
-76.4 |
2 |
-137 |
|
H-ZF3 |
32 |
-11.8 |
-284 |
2 |
-15.7 |
ZF1 |
41 |
-692 |
-170 |
-211 |
|
ZF7L |
44 |
-153 |
-49 |
3 |
-45.8 |
ZF4 |
54 |
-340 |
-249 |
-197 |
|
H-ZF3 |
58 |
-73.8 |
-234 |
4 |
-77.8 |
F4 |
60 |
-74.9 |
-78.4 |
1 |
-61.3 |
ZF1 |
65 |
-516 |
-163 |
-190 |
|
ZBaF3 |
65 |
-296 |
-52.4 |
-67.5 |
|
H-ZF2 |
68 |
-83.5 |
-249 |
-92.3 |
|
F13 |
68 |
-2465 |
-41.8 |
3 |
-65.6 |
H-F4 |
72 |
-170 |
-71.8 |
12 |
-80 |
H-K9L |
90 |
-102 |
-347 |
6 |
-15 2 |
Ecoptikis a professional optical components companies, we provide custom optical components, dome flangeand etc. Want to know more? Please contact us.
Send product request
Other supplier products
Filter | The optical glass filter is an optical device used to select the desired radiation band. One of the common characteristics of filters is that there... | |
Filter | The optical glass filter is an optical device used to select the desired radiation band. One of the common characteristics of filters is that there... | |
Optical Cylindrical Lens | A cylindrical optical lens is typically used to focus, condense or expand incoming light. A cylindrical optical lens has one cylindrical surface, c... | |
Anamorphic Prism | BRD Opticalwas founded in 2004, and is located in the city of Changchun-the optic base of China with a beautiful view and profound optical culture.... | |
Optical Mirror | The reflector, as the name suggests, was born to meet people's requirements for light reflection. It is an optical element that uses the law of lig... |
Same products
8.0MP 10-40mm Zoom Lens 1/1.8" F1.4 Format Machine Vision Lenses | Seller: Shenzhen Wikshu Technology Co. | Description Manual Zoom 8.0mp C Mount 10-40mm Lens Manual Aperture Machine Vision Lens 1/1... | |
Microscope Objective Lens | Seller: Shenzhen Canrill Technologies Co., Ltd | Microscope Objective Lens Suitable for ITO, particle detection, wafer inspection Infinity opt... | |
DMD Lithography Lens | Seller: Shenzhen Canrill Technologies Co., Ltd | DMD Lithography Lens We have been in close cooperation with LDI (Laser Direct Imaging) manufactu... | |
8k Line Scan (57.4mm) Telecentric Lens | Seller: Shenzhen Canrill Technologies Co., Ltd | 8k Line Scan Lens Suitable for large format Area Scan Camera Line Scan Camera 16Kx3.5μm, 8Kx7... | |
16k Line Scan (82mm) Telecentric Lens | Seller: Shenzhen Canrill Technologies Co., Ltd | 16k Line Scan (82mm) Telecentric Lens Specially designed for large image circle up to 82mm in le... |