LTI Optics is always striving to improve customer support and provide you timely product updates and information to increase your productivity. If you have questions about your software, we invite you to review the sections below and check for new product downloads.

You may email support inquiries to us at the follow address: support email

Should you need to call us, our support hours are 8 AM - 5 PM MST. Please review the technical support policy. Our technical support staff can be reached at 720-891-0030.

Please fill out this form to get more information.

For photopia | queue, our technical support is intended to answer any questions you may have about the use of the software.

It is beyond the scope of standard technical support to help you with a specific design project.

photopia | queue is a utility that allows you to execute a set of raytrace "job" files. Job files can be exported from Photopia for SOLIDWORKS & Photopia for Rhino. Running raytraces outside of the CAD interfaces is useful when you have a large set of files to simulate or a set of complex projects that each run for a long time. Queue manages the set of jobs, executes them one after the other and shows their status while running. Results from the raytraces can be viewed directly in Photopia Reports or imported back into SOLIDWORKS or Rhino.

Since the job and results files are in a readable XML format, they can also be written and read from custom software tools created by us or yourself. This provides a way to generate, run & view output for Photopia simulations outside of Photopia’s standard CAD interfaces.


photopia | queue is installed by default with Photopia for SOLIDWORKS and Photopia for Rhino. To obtain the installer, contact LTI Optics or login to your My Photopia online account.


photopia | queue will be automatically licensed if Photopia is already being used on the same machine.

To license a standalone photopia | queue you will click the "..." Settings menu in the upper right and login with your My Photopia email and password.

PJD Files

All data related to a raytrace job is written to a "Photopia Job Data" (*.PJD) file. This includes all model geometry, lamp data, material data, raytrace & output specifications. Running a PJD file in Queue therefore does not require that the library be installed on the computer.

RRD Files

All results from a raytrace are written to a "Raytrace Results Data" (*.RRD) file. This includes the intensity distributions, recorders & 3D rays. RRD files can be imported into the Photopia CAD plug-ins as well as opened directly in Photopia Reports.

Fully prepare your CAD model for the raytrace, including all material assignments & output specifications.


Choose Tools > Photopia > Export job from the SOLIDWORKS menu.


Choose Photopia > Export to Queue from the Rhino menu.

Start Queue from the LTI Optics, LLC Apps folder or pinned icon on your Task Bar. To load PJD files into Queue, drag and drop them into the left pane. You will see a list like shown below. Use the up/down arrows to re-order the jobs in the list. Click the start icon to run the jobs. Clicking on the small icon to the left of the job name will tree out the files associated with that job.

Photopia Parametric Optical Design Tools -

Icons indicate the status of each job as simulations progress through the list.

Photopia Parametric Optical Design Tools -

The following file types will be associated with each job after they have been completed:

Reflector Design - A.pjd
Reflector Design - A.results.log
Reflector Design - A.results.rrd

The log file retains the analysis status data. If you drag a PJD file into Queue after it’s already been run, you will see the results and raytrace status data in Queue.

Photopia Parametric Optical Design Tools -

Double click the RRD file in Windows Explorer or on the reference to it in the left pane of Queue to view the output in photopia | reports. You can then view any plots or full reports based on the intensity and recorder data.


Choose Tools > Photopia > Import results from the SOLIDWORKS menu.


Choose Photopia > Import External Results from the Rhino menu.

Clicking the help icon "?" displays descriptions for all interface icons.

Photopia Parametric Optical Design Tools -

Clicking the … icon opens the Settings screen. Clicking the same icon again closes this screen.

Photopia Parametric Optical Design Tools -

Use single output directory – Queue normally writes results to the same folder as the PJD file. Checking this option will force all output to be written to a single folder when the PJD files are in different folders.

Run with foreground priority – Queue normally runs with a lower process priority. Checking this option will force it to a higher priority. This may affect the responsiveness of other programs on your computer.

Licensing – If you are running Queue on a computer also running Photopia and you’ve already obtained a license with your email and password, then your license will be found by Queue. Otherwise, enter your email and password in this screen. You can run Queue at the same time as Photopia on the same computer, but if you run Queue on a different computer, it will use one of your Photopia licenses.

Back to top