Optical Double Concave Laser Measurement Systems Lens
Features:
High Precision Dimension Control, Optional Substrate Material, Diverges incident light Lower spherical aberrations than for Plano-Concave lenses, Ideal for Experimenting and Prototyping Applications
Applications:
Image Reduction and to Spread Light, Laser beam expanders, Optical character readers, Optical Viewers, Projection Systems, Imaging Systems, Laser Measurement Systems.
Description:
A double-concave lens is compose of two concave surface, has a negative focal length and are best used to diverge a converging beam. Similar to a plano-concave lens, a bi-concave lens can diverge a collimated beam to a virtual focus like a beam expander.
Double concave (DCV) or Biconcave lenses are symmetrical with equal radii of curvature on both sides. 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.
With its two concaves surface, the biconcave lens refracts light efficiently in a small space and spread widely the light.
Possible to use it for enlarging the illumination area.
Double Concave Lenses are used in beam expansion, image reduction, or light projection applications. These lenses are also ideal for expanding the focal length of an optical system. Double Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths.
Specification:
Material: BK7, Fused Silica, SF10, CaF2, Sapphire. Etc.
Paraxial Focal Length Tolerance: ± 2%
Dimension Tolerance: ± 0.2(General). ± 0.05(High Precision)
Centration: <3 arc min
IRR: λ /4@633nm(General), λ /10@633nm(High Precision)
Clear Aperture: >80%(Small Size), >95%(Laege Size)
Surface Figure: <1.5λ @633nm(General), <λ /4@633nm(High Precision)
Surface Quality: 60/40(General), 10/5(High Precision)
Bevel: <0.25mm
Coating: Uncaoted, AR, PR, HR, etc.
Item# |
Φ(mm) |
f(mm) |
R2=R2(mm) |
Tc |
Te |
Fb |
BCV-001 |
6 |
-15 |
15.2 |
2.1 |
1.5 |
14.3 |
BCV-002 |
6 |
-30 |
30.83 |
1.79 |
1.5 |
29.42 |
BCV-101 |
12.7 |
-15 |
14.65 |
4.89 |
2 |
13.27 |
BCV-102 |
12.7 |
-20 |
20.04 |
4.07 |
2 |
18.62 |
BCV-103 |
12.7 |
-25 |
25.35 |
3.62 |
2 |
23.82 |
BCV-104 |
12.7 |
-30 |
30.55 |
3.33 |
2 |
28.89 |
BCV-105 |
12.7 |
-40 |
41.02 |
2.99 |
2 |
39.04 |
BCV-106 |
12.7 |
-50 |
51.4 |
2.79 |
2 |
49.08 |
BCV-107 |
12.7 |
-75 |
77.45 |
2.52 |
2 |
74.24 |
BCV-108 |
12.7 |
-100 |
103.28 |
2.39 |
2 |
99.16 |
BCV-201 |
25.4 |
-25 |
24.72 |
9.02 |
2 |
22.24 |
BCV-202 |
25.4 |
-31.7 |
31.55 |
7.34 |
2 |
29.15 |
BCV-203 |
25.4 |
-35 |
35.08 |
6.76 |
2 |
32.66 |
BCV-204 |
25.4 |
-50 |
50.93 |
5.22 |
2 |
48.22 |
BCV-205 |
25.4 |
-75 |
77.09 |
4.11 |
2 |
73.63 |
BCV-206 |
25.4 |
-100 |
103.04 |
3.57 |
2 |
98.73 |
BCV-207 |
25.4 |
-125 |
129.12 |
3.25 |
2 |
123.92 |
BCV-208 |
25.4 |
-150 |
155.1 |
3.04 |
2 |
149 |
BCV-209 |
25.4 |
-175 |
181.13 |
2.89 |
2 |
174.12 |
BCV-210 |
25.4 |
-200 |
207 |
2.78 |
2 |
199.07 |
BCV-211 |
25.4 |
-250 |
258.9 |
2.62 |
2 |
249.12 |
BCV-212 |
25.4 |
-300 |
310.8 |
2.52 |
2 |
299.17 |
BCV-213 |
25.4 |
-500 |
518.3 |
2.31 |
2 |
499.21 |
BCV-214 |
25.4 |
-1000 |
1037.1 |
2.16 |
2 |
999.32 |
BCV-301 |
38 |
-45 |
44.87 |
10.44 |
2 |
41.46 |
BCV-302 |
38 |
-50 |
49.97 |
10.5 |
3 |
46.4 |
BCV-303 |
38 |
-100 |
102.57 |
6.55 |
3 |
97.78 |
BCV-304 |
38 |
-150 |
154.7 |
5.34 |
3 |
148.23 |
BCV-305 |
38 |
-200 |
206.7 |
4.75 |
3 |
198.46 |
BCV-306 |
38 |
-350 |
362.4 |
4 |
3 |
348.66 |
BCV-307 |
38 |
-500 |
518.1 |
3.7 |
3 |
498.79 |
BCV-308 |
38 |
-700 |
725.6 |
3.5 |
3 |
698.84 |
BCV-309 |
40 |
-63.5 |
64.42 |
8.27 |
1.9 |
60.7 |
BCV-501 |
50 |
-100 |
102.06 |
9.2 |
3 |
96.9 |
BCV-502 |
50 |
-150 |
154.27 |
7.1 |
3 |
147.6 |
BCV-503 |
50 |
-200 |
206.28 |
6 |
3 |
198 |
BCV-504 |
50 |
-250 |
258.22 |
5.4 |
3 |
248.2 |
BCV-505 |
50 |
-400 |
413.87 |
4.5 |
3 |
398.5 |
BCV-506 |
50 |
-450 |
465.73 |
4.3 |
3 |
448.6 |
BCV-507 |
50 |
-500 |
517.58 |
4.2 |
3 |
448.6 |
BCV-508 |
50 |
-600 |
621.28 |
4 |
3 |
598.7 |
BCV-509 |
50 |
-800 |
828.64 |
3.8 |
3 |
798.7 |
Commander Group Ltd. Is a professional supplier of Instruments and Machinery based in China.
We have skilled workers, innovative engineers and high quality sales staffs. We are market oriented and depend on technology innovation to provide customers with excellent products and services.
Products
Instruments including optical component, fresnel lens, surveying accessories and testing system, which are widely applied in solar thermal electric power generation, LED lamp, optical display systems, projection optics systems, imaging optics systems, beam expansion systems, geographic surveying instrument, bridge, ship, rotating machinery, lifting equipment, etc.
Machinery including hydraulic breaker and sewing machine. Hydraulic breaker is mainly serving mining, metallurgy, railway, highway, building, vessel applications. Sewing machine is widely used to close paper bag, jute bag, plastic woven bag, paper-plastic bag of sugar, chemical, fertilizer and food.
Quality
We carry out strict quality control according to ISO 9001 quality management system.
Excellent products have been sold to many countries and areas, we have a long term cooperation relationship with America, Europe Union, Asia, Africa and Middle East countries. We have been striving to grow and expand through many years' effort, basically our products have enabled us to meet our customers' diversified requirements.
Goal
Our goal is to transform Commander into the global leading brand in instruments and machinery industry within 3 to 5 years through innovation and reform, by strengthening the overall management of supply chain, developing and cultivating both domestic and overseas market, improving the procedure and information system, enhancing the ability to organize resources and to provide value-added services under a professional team and a learning organization.
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