![zemax 16 gaussian source zemax 16 gaussian source](https://docplayer.net/docs-images/96/128164297/images/2-0.jpg)
At the same time, to ensure that the diffuser is stable against variations in the input beam's intensity profile and usable in the visible and IR, the distribution of microlenses is randomized according to probability distribution functions chosen to implement the desired beam shaping functions. On the other hand, Engineered Diffusers consist of differing, individually manipulated microlens units that provide broadband compatibility and excellent control over the light distribution and beam profile.Įach microlens unit that forms the diffuser is individually specified with respect to its surface profile and location in the array.
![zemax 16 gaussian source zemax 16 gaussian source](https://osphotonics.files.wordpress.com/2015/03/fig3-9-1b.png)
In addition, holographic diffusers are usually limited to monochromatic applications using coherent light. Homogeneous diffusers made of, for example, ground glass, opal glass, or holographic elements, consist of repeating, uniform surface patterns across the entire clear aperture that provide only limited control over the shape and intensity profile of the illuminated area, causing the incident light to be used inefficiently.
![zemax 16 gaussian source zemax 16 gaussian source](https://i.stack.imgur.com/AGph9.png)
Thorlabs and RPC Photonics' Engineered Diffusers™ provide advanced beam shaping that leads to significant performance enhancements for applications as diverse as lithographic systems, outdoor lighting, displays, backlighting, display brightness enhancement, and projection screens. SEM Picture of Engineered Diffuser for Projection Screens Please see the Technology tab above for more information on our Engineered Diffusers. These mounted diffusers are available individually or as a set of all five at a discounted price. SM1 threading is particularly useful when building Ø1" lens tube and 30 mm cage systems. The mount provides quick identification and helps protect the diffusers from fingerprints and other contamination. The mounted Ø1" diffusers come in an engraved SM1-threaded (1.035"-40) mount, as shown at the top of the webpage. Our Engineered Diffusers are available unmounted or mounted. These Engineered Diffusers are designed for use with Ø0.5 mm or larger laser beams smaller beams should be expanded prior to the diffuser. Typical diffusers do not offer this advanced light control. The square and circular patterns are offered in 20° and 50° divergence angle options, while the line distribution has a 0.4° x 100° divergence. We offer square, circular, and line distribution tophat patterns with a 90% transmission efficiency. Thorlabs and RPC Photonics are proud to offer Engineered Diffusers™, which provide non-Gaussian intensity distributions in various patterns.