7invensun aGlass DK II User manual

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
Page 1 of 15
aGlass VR Eye Tracking Add-on for HTC Vive
aGlass DKⅡ
Users Manual
Beijing 7invensun Technology Co., Ltd.
www.aglass.com
400-880-1390
[e-mail]
Room 1801-1803，JinHui plaza ,QiYang Road, Chaoyang District

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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Contents
1 Package Content ...............................................................................................................................................3
2 Hardware Specification....................................................................................................................................3
3 Environment Configuration............................................................................................................................4
3.1 HTC Vive.................................................................................................................................................4
3.2 Computer ...............................................................................................................................................4
3.3 SteamVR .................................................................................................................................................4
4 Hardware Assembly..........................................................................................................................................4
4.1 Assembly of aGlass Add-on ............................................................................................................4
4.2 aGlass Connector Installation ..........................................................................................................6
5Software Installation.........................................................................................................................................7
6 How to Use..........................................................................................................................................................7
6.1 Start Software .......................................................................................................................................7
6.2 Calibration..............................................................................................................................................8
6.2.1 IPD Adjusting...............................................................................................................................8
6.2.2 Adjusting of the Lens Distance..............................................................................................9
6.2.3 Position Adjusting ................................................................................................................... 10
6.2.4 Calibration ................................................................................................................................. 10
6.2.5 Verification................................................................................................................................. 10
6.3 User Management............................................................................................................................ 11
7Vision Corrective Lens................................................................................................................................... 11
8 Disassembly and Maintenance of the Product..................................................................................... 12
8.1 Disassembly of the Add-on .......................................................................................................... 12
8.2 Precautions ......................................................................................................................................... 12
8.3 Vive Controller Button Definition................................................................................................ 13
9 Biosafety Statement....................................................................................................................................... 13
10 Troubleshooting......................................................................................................................................... 14
11 Trademarks and copyright...................................................................................................................... 15

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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1Package Content
No.
Name
Amount
1
aGlass Add-on
A pair, one for left eye and another for right eye
2
aGlass Connector
1
3
Myopic lens
3 pairs (200 degree, 400 degree, 600 degree)
4
Users Manual
1
5
Service Card
1
6
Lens Cloth
1
2Hardware Specification
➢Adapted VR device: HTC Vive
➢Accuracy: < 0.5°
➢FPS: 100Hz/120Hz
➢Delay: < 5ms
➢Communication Port: USB2.0/3.0
➢FOV: >110°

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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3Environment Configuration
3.1 HTC Vive
aGlass has to be used after installed in HTC Vive, so please make sure that your HTC Vive is in
normal operation, including the base station, headset, link box and controller etc. If your HTC Vive
does not work normally, please click https://www.vive.com/us/support/.
3.2 Computer
Configuration Requirements:
➢Desktop Computer GPU: GeForce GTX 970 or higher
➢Laptop GPU: GeForce GTX 980 or higher
➢CPU: Intel Core i5- 4590 or higher
➢Memory: 8G or above
➢Interface: 2 USB interfaces at least, 1 HDMI interface at least
➢Operating System: 64-bit Windows 10
3.3 SteamVR
Please make sure that SteamVR is installed on your computer and works normally.
If you have not installed SteamVR, please click https://steamcdn-
a.akamaihd.net/client/installer/SteamSetup.exe. to download and install Steam, and then install
SteamVR in Steam.
4Hardware Assembly
4.1 Assembly of aGlass Add-on
Click http://www.aglass.com/assets/aGlass-DKII-Assembly-Guide-Chs.mp4 to learn how to
install the product.
1) Rotate the lens distance knobs on both sides of the HTC Vive headset, to maximize the lens
distance. Rotate the IPD (interpupillary distance) knob of HTC Vive, to maximize the IPD.

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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2) When installing the eye-tracking add-on for the left eye, put it above the HTC Vive lens, with
the thin side of the aGlass add-on upward (compared with the angle of the HTC Vive lens
base, slightly rotate anticlockwise to a certain angle), rotate clockwise while embedding it
with the thick side downward, and adjust the position of accessories, to finally fix the add-
on at the position above the lens.

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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3) The eye-tracking add-on for the right eye is installed in the same way as that for the left eye,
but aligned and rotated in the opposite direction.
4.2 aGlass Connector Installation
Fix the connector on the Vive strap through connector buckle. Put Vive cable under the slot of
the connector.

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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Power off the Vive. Open the compartment cover on the top of the Vive. Connect the shorter USB
cable to the reserved USB interface of Vive. Put the two longer USB cable through the Vive strap hole
and connect to the two aGlass add-ons.
5Software Installation
Click http://www.aglass.com/download?lang=en&software=soft to download aGlass Runtime.
After the download and extraction, double click Setup.exe to install the software according to the
prompts.
Note: You must log in the Windows operating system and install it as the administrator, or else
you may make the software run abnormally.
6How to Use
6.1 Start Software
Double click the aGlass Runtime shortcut on the Windows desktop, to start the aGlass Runtime
program, and the icon will appear in the system tray. The following menu will appear by a right click
on the icon in the tray:

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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6.2 Calibration
Click Calibration and choose 9-Point Calibration or 3-Point Calibration in the right click menu.
Wear the HTC Vive headset, and perform the following procedures according to the prompts on
the interface:
6.2.1 IPD Adjusting
Put on the Vive HMD. IPD adjust guidance will be seen, like shown below:
Turn the IPD knob according to the instruction in the Vive scene. Stop turning if the following
scene displayed:

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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Hold on to wait the next step.
6.2.2 Adjusting of the Lens Distance
The lens distance adjusting scene will show after the IPD adjusting. If the lens distance is OK, this
scene will be skipped.
Pull out the lens distance knob first following the display:
Turn the lens distance knob according to the image in the scene:
Stop turning when the “Hold on” displays as shown below, and wait the next step:

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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6.2.3 Position Adjusting
The position adjusting scene will be shown after the lens distance adjusting. Please adjust the
Vive HMD position relative your face according to the instruction in the scene:
When Vive HMD move to the appropriate position, the scene become:
Wait for a moment to next step.
6.2.4 Calibration
On calibration, you need to keep watching the calibration point (as shown in the figure below)
that appears:
6.2.5 Verification
You can judge whether the calibration is accurate.

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2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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Press the menu button of the HTC Vive controller or the ESC key on the keyboard to quit the
calibration.
6.3 User Management
The system provides a default user account Guest, but it is recommended to create your own
user account.
By clicking “Current User -> Create a User”, you can create a new user account, which will
automatically enter the calibration procedure.
During use, please switch user accounts if users change.
7Vision Corrective Lens
We provide myopic lenses, the default degrees of which are 200°, 400° and 600°; users can also
get myopic lenses of different types and degrees through our customization service.
How to install the myopic lenses: according to the shape of the lens, gently put the lens into the
aGlass add-on and fixed it in the middle with its convex surface downward.
How to dismantle the myopic lenses: find the edge of the lens at the gap in one side of the add-
on, where the lens can be taken out by hand.

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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8Disassembly and Maintenance of the Product
8.1 Disassembly of the Add-on
Click http://www.aglass.com/assets/aGlass-DKII-Assembly-Guide-En.mp4 to learn how to
disassembly the product.
1) Power off the Vive. Disconnect the USB wire between aGlass connector and Vive. Disconnect
the USB wire between aGlass connector and aGlass Add-ons.
2) Rotate the lens distance knobs on both sides of the HTC Vive headset, to maximize the lens
distance.
3) Rotate the IPD (pupillary distance) knob of HTC Vive, to maximize the IPD.
4) Lift the thick and thin sides of the aGlass add-on for the left eye upward successively, to
loosen it from the HTC Vive lens, after which gently rotate anticlockwise while lifting upward
until the lower end of the aGlass add-on is loosened, to finally take out the add-on
completely; take out the aGlass add-on for the right eye from the other side in the same way
but rotate clockwise.
8.2 Precautions
1) Hot plugging not supported. Please power off the Vive before plugging or unplugging USB
interface.
2) Please store and use the product at room temperature.
3) Do not expose the product in rain or moisture conditions.
4) Do not throw, to avoid damage to the product caused by falling.
5) Do not disassemble, repair or modify the product by yourself.
6) Do not wipe the product with any chemical solvent.
7) Do not throw the product away or put it in high temperature (higher than 60°C) or fire to
avoid danger.

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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8.3 Vive Controller Button Definition
1) Menu button
2) Trackpad
3) System button
4) Status light
5) Micro-USB port
6) Tracking sensor
7) Trigger
8) Grip button
9Biosafety Statement
aGlass DKⅡ uses the way of infrared lighting (wavelength 850 nm).
aGlass DKⅡ has passed the certification of international standard IEC 62471: the photobiological
safety of lamps and lamp systems. It’s confirmed that aGlass DKⅡ will not cause any harm to the
human eyes and body.
Warning: The injuries of infrared lights to the eye lens and retina have two kinds: long-term

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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and short-term. The existing research does not ensure that long time infrared radiation has no effect
on human eyes. So, don’t use the product for too long time and pay attention to eye health.
10 Troubleshooting
1) Questions: Paper user’s manual is not very detailed. Are there any instructions more detailed?
Answers: Click the following link for more instructions:
http://www.aglass.com/assets/aGlass-DKII-Users-Manual-En.pdf.
If you are developer or want to know the API, click the following link:
http://www.aglass.com/assets/aGlass-DKII-Developers-Guide-En.pdf。
2) Questions: I cannot install the add-ons onto the HTC Vive Headset.
Answers: Click http://www.aglass.com/assets/aGlass-DKII-Assembly-Guide-En.mp4, to
watch the video on how to install and disassemble the add-on, and operate by following the
operating procedures shown in the video.
3) Questions: I cannot calibrate the device as the calibration options in the menu are all gray.
Answers: Check whether the HTC Vive is plugged in and power on.
Check whether the add-on and HTC Vive are connected properly with the USB cable.
4) Questions: When starting calibration, I received a prompt of OpenVR failure.
Answers: Check whether you have installed and logged on to SteamVR, and if you haven’t,
please install and log on to SteamVR, to test whether HTC Vive can work normally under
SteamVR.
5) Questions: When starting calibration, I received a prompt of not finding the USB key.
Answers: Check whether the USB key is normally inserted into the USB interface of the
computer in use, and try pulling out and inserting it again.
6) Questions: During calibration, there is a point that always fails to pass.
Answers: Pressing grip button of HTC Vive controller or clicking W on the keyboard can force
it to pass, or wait for it to pass automatically after 15 seconds.
7) Questions: I want to take the add-on off from HTC Vive, but always fail.
Answers: Click http://www.aglass.com/assets/aGlass-DKII-Assembly-Guide-En.mp4,to
watch the videos on how to install and disassemble the add-on, and operate following the
operating procedures shown in the video.
8) Questions: Can I wear my glasses or not while using it?
Answers: It is not recommended to wear glasses when using it. We can provide myopic lenses
of 200°, 400° and 600°, and if these cannot meet your demand, you can also order
customized myopic lenses from our company and install them into the add-on.
9) Questions: What are the precautions for use?

aGlass DKⅡUser’s Manual
2017 Beijing 7invensun Technology Co., Ltd All Rights Reserved.
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Answers: Make sure the HTC Vive power on and connected normally.
Ensure that the aGlass add-on is installed correctly and steady.
Ensure that the nose rest does not influence the installation of the add-on, or cover the
sensor under the add-on.
Ensure that the USB cable is normally connected, to avoid any faulty connection.
Ensure that there is nothing between the eyes and the lenses in the headset.
Ensure that you have normally installed and logged on to SteamVR.
Avoid stamping the HTC Vive cable while using it.
11 Trademarks and copyright
1) Vive, the Vive logo, HTC, the HTC logo, and all other HTC product and service names are
trademarks and/or registered trademarks of HTC Corporation and its affiliates in the U.S. and
other countries.
2) Steam, the Steam logo and Steam VR are trademarks and/or registered trademarks of Valve
Corporation in the U.S. and/or other countries.
3) All other trademarks and service marks mentioned herein, including company names,
product names, service names and logos, are the property of their respective owners and
their use herein does not indicate an affiliation with, association with, or endorsement of or
by HTC Corporation. Not all marks listed necessarily appear in this User Guide.
4) Screen images contained herein are simulated. 7invensun shall not be liable for technical or
editorial errors or omissions contained herein, nor for incidental or consequential damages
resulting from furnishing this material. The information is provided “as is” without warranty
of any kind and is subject to change without notice. 7invensun also reserves the right to
revise the content of this document at any time without prior notice.
5) Information is provided on the basis of the “prototype”, without any type of warranty
provided; please be aware that you will not be informed if there is any change. Beijing
7Invensun Technology Co., Ltd. reserves the right to modify the document at any time,
without prior notice.
6) The copyright of this manual is fully owned by Beijing 7Invensun Technology Co., Ltd.. No
part of this document may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying, recording or storing in a retrieval system,
or translated into any language in any form without prior written permission of 7invensun.