LightPen3 for Windows

This is a software application that lets you operate interactive function.
Before installing the LightPen3, installation of the SP Driver is required.

Compatible Projector Models

PT-TW341R (Discontinued models)
• To operate interactive function, supplied Interactive pen or optional Interactive pointer is required.
• When using PT-CW331R/CW241R/CX301R and PT-TW331R/TX301R, please click here.

Latest Version Version 2.6.0036
Update information from Version 2.6.0026
    • The new SP Driver for the PT-TW381R/TW371R/TW351R/TW343R/TW341R is supported.

System Requirements

Windows® 8.1 32 bit/64 bit
Windows® 10 32 bit/64 bit
CPU Intel® Core™ 2 Duo 2.0 GHz or more
(dedicated GPU is recommended)
RAM 2 GB or more
Free hard disk capacity 100 MB or more


・Please notice that it is not guaranteed of the proper operations for system requirements other than the above mentioned requirements or for self-made computers.

・If the USB port monitor software is working, the LightPen3 software or the SPDriver software may not work properly. In this case, please exit the monitor software before using the LightPen3 software or the SPDriver software.

Even all the requirements are meet, there is not guaranteed operations for all computers.

Downloading and Installing the SP Driver

The SP Driver differs among the PT-TW381R/TW371R/TW351R and the PT-TW343R/TW341R.
Download the appropriate driver for the projector you are using.

For the PT-TW381R/TW371R/TW351R (864 KB)

For the PT-TW343R/TW341R

The SP Driver to be used varies depending on the serial number on the projector body.
Confirm the method for checking the serial number prior to downloading.

For a serial number prior to "DH6340156"

DownloadSPDriver6_v6.4.0522P.exe (635 KB)

For a serial number of "DH6340156" or after (864 KB)

How to Download and Install

1. Click the "Download" button above.
2. Double click "Setup.exe" (SP Driver).

Downloading and Installing the Software

Full version - LightPen3 for Windows
DownloadLightPen3_v2.6.0036.exe (49.4 MB)

How to Download and Install

1. Click the "Download" button above.
2. Double click "Setup.exe" (Software).

The illustrations and screenshots in this page may be different from those on your computer.
In addition, the specification of this software is subject to change without notice.