Category Archives: Product

Varjo High-Resolution HMDs

Headsets by the Finish start-up Varjo recently have had a profound impact on the market of business-to-business virtual reality devices. Varjo’s advanced display technology allows viewing immersive environments with uniquely high resolution. It makes the company’s HMDs a great choice for professional design and industrial applications.

We have been working with Varjo for a few months in order to adapt our LPVR driver to work with their headsets. As a result we have recently released a first version of the driver and are ready to deploy it to customers.

LPVR Tracking Technology

Valve Lighthouse is the default tracking technology built into Varjo headsets. This system, in spite of being very suitable for games and single user applications, is limited in its tracking volume and accuracy (mainly reproducibility). In order to allow multi user, large space applications (location-based VR) an alternate tracking system is needed.

With LPVR-CAD for Varjo we allow the combination of Varjo headsets with our tracking technology, based on marker-based inside-out tracking, feature-based inside-out tracking or outside-in tracking such as Advanced Realitime Tracking (ART).

Besides static tracking solutions we also offer support for our LPVR-DUO in-car tracking system.

Figure 1 – For LPVR outside-in-based tracking, we offer a customized marker holder for Varjo HMDs.

Figure 2 – The marker holder fits all currently available HMDs: VR-1, VR-2 (Pro) and XR-1

Downloads

LPVR-CAD datasheet
LPVR-DUO datasheet

It’s been a long time, but finally we have updated our reference manual to the latest generation of sensors.

The manual is accessible through our documentation & support page or directly from here.

Below is a list of the most important updates, some of which are fixes that customers have asked for for quite a while:

• Removed hardware specific parts. These are now covered in the quick start manuals.
• Corrected scaling factors for all non-floating-point data transmission modes.
• Corrected error in description of reset modes.
• Moved to-be-deprecated LpSensor detail description to appendix.
• Added list with APIs for direct sensor programming. OpenZen is to replace LpSensor.

LPMS-B2, besides Bluetooth classic, also supports Bluetooth 4 / Bluetooth Low Energy. This allows us to connect the sensor to Apple mobile devices such as the iPad, iPhone or the Apple watch. We recently have created a library that enables development of applications supporting LPMS-B2 on these devices.

The library can be accessed via our open source repository.

The repository contains a skeleton application that shows usage of the most basic parts of the library. The library itself is contained in the following files:

LpmsB2.m
LpmsB2.h
LpmsBData.m
LpmsBData.h

A sensor object is initialized and connected using the follwoing code:

#import "LpmsB2.h"
#import "LpmsBData.h"
..
CBPeripheral *peripheral;
CBCentralManager *centralManager;
..
LpmsB2 *myLpmsB2;
myLpmsB2 = [[LpmsB2 alloc] init];
[myLpmsB2 connect:centralManager Address:peripheral];

More coming soon..