Chinese English
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Capacity:
Material: Optical glass, Fused silica, Silicon, Germanium, CaF2, MgF2, Sapphire, ZnSe, ZnS
Diameter: 0.5 to 350 mm
Diameter Tolerance: +0/-0.02 mm
Thickness Tolerance: ±0.01 mm
Surface Quality: 10-5
Surface Figure: λ/10
Centration: 1 minute or 30 Second
Coating: Uncoated, AR and HR
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Positive Meniscus Lens:
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Material |
BK7 grade A optical glass |
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Design Wavelength |
546.1 nm |
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Design Index: |
1.5183 ± 0.0005 |
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Diameter Tolerance |
+0.00, -0.15 mm |
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Thickness Tolerance |
±0.2 mm |
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Paraxial Focal Length |
±2% |
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Centration |
<3 arc minutes |
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Clear Aperture |
>85% |
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Surface Irregularity |
λ/4@632.8 nm |
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Surface Quality |
60-40 scratch and dig |
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Protective Bevel |
0.25 mm x 45° |
BK7 Positive Meniscus Lens Standard Products:
Note: Other material, size and coating are available upon request.
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Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
R2(mm) |
t c(mm) |
t e(mm) |
f b(mm) |
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TPM101 |
100.0 |
25.4 |
33.72 |
90.0 |
4.0 |
2.5 |
97.5 |
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TPM102 |
125.0 |
25.4 |
38.47 |
90.0 |
4.0 |
2.8 |
121.8 |
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TPM103 |
150.0 |
25.4 |
42.52 |
90.0 |
4.0 |
3.0 |
146.3 |
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TPM104 |
175.0 |
25.4 |
46.05 |
90.0 |
4.0 |
3.1 |
171.2 |
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Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
R2(mm) |
t c(mm) |
t e(mm) |
f b(mm) |
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TPM101 |
100.0 |
25.4 |
33.72 |
90.0 |
4.0 |
2.5 |
97.5 |
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TPM102 |
125.0 |
25.4 |
38.47 |
90.0 |
4.0 |
2.8 |
121.8 |
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TPM103 |
150.0 |
25.4 |
42.52 |
90.0 |
4.0 |
3.0 |
146.3 |
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TPM104 |
175.0 |
25.4 |
46.05 |
90.0 |
4.0 |
3.1 |
171.2 |
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Part No. |
f (mm) |
Ф(mm) |
R1 (mm) |
R2(mm) |
t c(mm) |
t e(mm) |
f b(mm) |
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TNM101 |
-100.0 |
25.4 |
90.0 |
32.59 |
3.0 |
4.5 |
-99.2 |
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TNM102 |
-125.0 |
25.4 |
90.0 |
37.26 |
3.0 |
4.2 |
-123.7 |
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TNM103 |
-150.0 |
25.4 |
90.0 |
41.42 |
3.0 |
4.0 |
-149.5 |
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TNM104 |
-175.0 |
25.4 |
90.0 |
44.86 |
3.0 |
3.8 |
-174.6 |
Note: Other material, size and coating are available upon request.
These lenses have positive focus length. Most suitable where one conjugate is more than five times, the other. e.g. in sensor application or for use with near collimated light. Also where both conjugates are on the same side of the lens, e.g. as an add-on lens to increase the numerical aperture.
Glass aspheric lens is also called condenser lens, mainly applicable for stage lighting, optical lighting system, etc. We bring in hot briquetting technology from Japan, with volume production ability, including aspheric lens which surface form error is within 100 micron.
Cylindrical lens is used to provide focusing power in one section only. For illumination or detection of light from line sources. Also used to anamorphic compression of beams and images. Especially widely used to anamorphic compression of LD (laser diode) output beam.
Meniscus Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly.
