Calendar

IODC
June 14-16
Jackson Hole, WY
More details

SPIE Optics + Photonics
August 1-5
San Diego, CA
More details

Introduction to Illumination Design Using LightTools
October 11-14
Pasadena, California
More details

COM Macro Programming in LightTools
October 15
Pasadena, California
More details

Introduction to LightTools
November 8-12
Munich, Germany
Contact OEC

Selected Advanced Topics in LightTools
November 8-12
Munich, Germany
Contact OEC

For a complete list of LightTools events worldwide: visit our website

LightTools 7.0 Service Release 1 (SR1) Is Available for Download

We are pleased to announce the availability of the LightTools 7.0 SR1.  This service release patch corrects over 20 customer-reported bugs, including:

• Fixes a bug that caused inconsistent display of receiver filter data in the System Navigator.
  
• Resolves a bug where rotating the zone of an elliptical scatterer failed to rotate the scatter pattern.
  
• Corrects a problem that prevented the Fresnel Lens utility from working correctly without a license for the Optimization Module.
  
• Fixes rendering performance issues when running LightTools under Windows 7
  
• Fixes a bug which caused superconic lens surfaces from sometimes tracing correctly in Precision Ray Trace mode.
  
• Implements faster loading of LightTools models (.lts files) that contain user-defined optical properties.
  
• Includes bug fixes in the Solar Tracking utility, DXF Import/Export utilities, and the Filament modeling utility.
  
• Fixes a crashing bug that occurred when evaluating an optimization merit function using either the COM interface or Parameter Sensitivity utility.

We strongly encourage all LightTools 7.0 users to apply this patch. 

The default point-and-shoot ray grid in LightTools has a square footprint.  If your model is rotationally symmetric, this may not be the most efficient ray pattern to use.  You can easily change a square ray grid to circular by changing the grid's Fan Spacing from Linear to Equi-cosine.  The image below shows two ray grids with identical subtended angles propagating into a lens with a circular aperture.  The linear ray grid has extra rays that leak around the circular aperture of the lens.  Using an equi-cosine ray grid allows you to more easily control the ray fan so that only rays that pass through the circular aperture of the lens are traced.

Optical Research Associates cordially invites you to a happy hour and lively networking event at the International Optical Design Conference (IODC). Talk with our LightTools experts, share ideas with other users, and learn about ORA's latest software innovations. There will also be a special presentation to winners of the Robert S. Hilbert Memorial Student Travel Grant.

Monday, June 14, 2010
5:00 p.m. to 7:00 p.m.

Snow King Resort
Timberline Level
400 E. Snow King Avenue
Jackson Hole, Wyoming 83001
Directions

 

The following updates have been made to ORA’s Customer Support Web Site (www.oraservice.com) under LightTools Support:

• An update to the LightTools LED Library (Tools > LED Library menu) is available for download, under Source Models.   This update includes 53 new LED source models from Citizen, Cree, Edison, OSRAM, and Lumileds.  It also includes 10 updated LED models from Lumileds' Rebel family of LEDs.
  Note: This LED Library update is not included in the LightTools 7.0 SR1 patch mentioned above and must be downloaded separately from www.oraservice.com.
  
• A new presentation on things to consider when modeling a luminance meter is available under Tech Support FAQs > Luminance Meter FAQs.