| Customization: | Available |
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| After-sales Service: | Return or Replacement |
| Warranty: | Return or Replacement |
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oduct Name
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Optical Glass High Precision Coated 40/20 Cemented Group Taper + Lens
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Material
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optical glass
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Diameter
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as design
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Diameter Tolerance
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+-0.1 mm
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Thickness Tolerance
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+-0.1 mm
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Centration
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3 arc minutes
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Clear Aperture
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> 90%
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Flatness
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L/4
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Surface Quality
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40/20
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Bevel
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0.25 mm*45°
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Coating
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as customer's design
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We provide all kinds of customized optical lens which according to your drawings, sample products or detailed requirements. Any inquiry please feel free to contact us, thanks!
We can provide virtually any size, shape and quality required by the customer. The range covers more than 60 types including the following types in the visible wavelength range from 200 nm upwards:
Materials
Forms of Supply for optical Glass Filters
Specifications
Dimensions: from 1 mm - 480 mm
Minimum thickness 0.1 mm
Tolerances Up to 0.001 mm
Surface quality Up to P 4 in compl. With DIN IS0 100110
Upon request, we can produce any size and thickness required within the framework of the maximum size permitted by the type of glass required.
Applications
Optical glass filters are used in a host of different applications. Optical glass filters are significant components in industrial measurement, control and regulation technology through analytical measuring methods in production, research and development all the way to environment protection and medicine with which to permit or block the transmission of specific spectral ranges.
Filter Glass Types
One of the main applications of cylindrical lenses is in ophthalmology, specifically, to correct astigmatic vision. When a person presents astigmatic vision, it is usually the result of a corneal deformation. An astigmatic cornea will have different focal points at different axes. It is then possible to use a cylindrical lens to change the focal point of one of the axes to overlap the second one.
2 . Laser Line Scanning
This is a technique that is used to capture the shape of a 3D object into a digital copy. It is particularly useful in manufacturing, prototyping, landscaping, and architecture. This scanning technique measures the deformation of a straight line created by a cylindrical lens when it is incident into a non-flat surface. By using cameras and triangulation, it is possible to measure the changes in the shape of our laser line and therefore estimate the shape of the object that we are measuring. If you would like to learn more about Laser Line Scanning please leave a comment.
3. Laser Scanning Microscopy
They are usually used in combination with acousto-optic deflectors, where the focal point of a variable lens (the acousto-optical elements) can change its position laterally without the use of movable parts. The cylindrical lens corrects the image and helps focus the light spot onto the correct plane for laser scanning microscopy.
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