Product Description:
Powell lenses are a type of cylindrical lens that is designed to produce a highly uniform line of light. They are named after their inventor, Dr. William Powell, who developed them in the 19th century.
The main purpose of a Powell lens is to transform a collimated laser beam into a straight line of light. Unlike traditional cylindrical lenses, Powell lenses have a specific surface profile that allows them to produce a uniform line of light with a width that remains constant over a certain distance. This is achieved by combining the cylindrical lens with a diffractive optical element.
The unique design of Powell lenses helps mitigate the effects of beam divergence, which is a common issue with cylindrical lenses. The result is a precise and uniform line of light that can be easily projected onto a target surface.
Powell lenses are available in various sizes and focal lengths to accommodate different applications. They are typically made from glass or plastic materials, depending on the specific requirements of the application.
Overall, Powell lenses are valuable optical components that play a crucial role in many applications requiring the generation of uniform lines of light. Their ability to transform collimated laser beams into straight lines makes them useful in fields such as industrial automation, metrology, and scientific research. The main purpose of a Powell lens is to transform a collimated laser beam into a straight line of light. Unlike traditional cylindrical lenses, Powell lenses have a specific surface profile that allows them to produce a uniform line of light with a width that remains constant over a certain distance. This is achieved by combining the cylindrical lens with a diffractive optical element.
The unique design of Powell lenses helps mitigate the effects of beam divergence, which is a common issue with cylindrical lenses. The result is a precise and uniform line of light that can be easily projected onto a target surface.
Key Features:
- Generate Laser Lines with Nearly Flat-Top Profiles
- 30°, 45°, 60°, or 75° Fan Angle at 633 nm
- Designed for Ø0.8 mm (1/e2) Input Beams
Technical Parameters:
|
Size
|
Ø6.3mm +0/-0.05mm
|
| Fan Angle |
30°, 45°, 60°, 75° +/-0.5° |
| 1/e² Inpit beam diameter |
Ø0.8 mm |
|
Line uniformity
|
<30% VARIATION OVER CENTRAL 80% OF LINE @ 633 nm |
|
Line straightness
|
<0.1% OVER CENTRAL 80% OF LINE @ 633 nm |
|
Contained power
|
80% ± 5% OVER CENTRAL 80% OF LINE @ 633 nm |
| Surface Quality |
60/40 |
| Coating |
MgF2. , Ravg: <2% from 400-700 nm |
Applications:
Powell lenses are valuable optical components that play a crucial role in many applications requiring the generation of uniform lines of light. Powell lenses are commonly used in a variety of applications where a thin, uniform line of light is required, such as laser diode modules, barcode scanners, and machine vision systems. Their ability to transform collimated laser beams into straight lines makes them useful in fields such as industrial automation, metrology, and scientific research. Powell lenses can also be found in optical systems used for projection, alignment, and measurement purposes.
