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 mvBlueGEMINI Technical Manual (EN)    v

1.2.2

 

APPENDIX

 - 

CHOICE

 OF THE RIGHT LENS AND LIGHTING SYSTEM

     

44

 

Choice of the lens 

You can calculate further parameters using the following formula (the focal length with the given 
object distance, or with the given focal length the object distance): 

Figure 5 Focal length formula 

 

f = g * B / (G + B)

 

 

If the size of the sensor (B), the size of the object (G), and the object distance (g) are known, you 
can calculate the needed focal length. 

For a rough calculation a swift procedure is enough. If the object distance is noticeably larger than 
the focal length, you will have the image scale immediately.

 

f / g = B / G                 # if G > 10 * B

 

 

On our website, we offer a lens calculator: 

Содержание mvBlueGEMINI

Страница 1: ...0 Version 1 2 2 Date 21 07 2016 mvBlueGEMINI Technical Manual EN...

Страница 2: ...6 3 1 Declaration of Conformity statement 6 4 About this user manual 9 5 Proper use 10 6 Scope of delivery 11 6 1 Accessories 11 7 Technical data 12 7 1 Dimensional drawing 12 7 2 Connections 13 7 2 1...

Страница 3: ...te software 21 10 Appendix 23 10 1 Control commands 23 10 1 1 Communication via UDP 23 10 2 Troubleshooting table 33 10 3 Notes on network connections 36 10 3 1 Background information 36 10 3 2 Terms...

Страница 4: ...mvBlueGEMINI Technical Manual EN v1 2 2 IMPRINT ADDRESS 3...

Страница 5: ...tice and is copyright MATRIX VISION GmbH Given that the documentation is published electronically the user himself is responsible to update his printouts The mvBlueGEMINI smart camera uses embedded Li...

Страница 6: ...in Find object and Check object Corrected User data length in bytes of Set inspection number 1 2 04 05 2016 Added Testing the communication 1 1 31 03 2016 Added control commands Added details about th...

Страница 7: ...formation contained in this manual We make every effort to provide you with a flawless product In the context of the applicable statutory regulations we shall accept no liability for direct damage ind...

Страница 8: ...mvBlueGEMINI Technical Manual EN v1 2 2 NOTES WARNINGS ATTENTIONS DECLARATION OF CONFORMITY STATEMENT 7...

Страница 9: ...mvBlueGEMINI Technical Manual EN v1 2 2 NOTES WARNINGS ATTENTIONS DECLARATION OF CONFORMITY STATEMENT 8...

Страница 10: ...this manual In the section entitled Proper use the camera will be introduced followed by the camera s technical data and the scope of delivery The subsequent First steps section you will learn how to...

Страница 11: ...the camera via your web browser over network Furthermore you create and configure inspection programs with the user interface software mvIMPACT Configuration Studio mvIMPACT CS You can monitor and ana...

Страница 12: ...ent a separate lighting system could be required 6 1 Accessories Article name Description KS RJ45 M12 8X x xx AL Network cable M12 connector 8 pin X coded Cat 6A length up to 20 m KS M12 PWR IO xx x S...

Страница 13: ...mvBlueGEMINI Technical Manual EN v1 2 2 TECHNICAL DATA DIMENSIONAL DRAWING 12 7 Technical data 7 1 Dimensional drawing X 12 mm...

Страница 14: ...ufacturer Binder Description Flanschstecker M12 x 1 10 5 mm Number of contacts 12 Area M12 A Order code 09 3491 550 12 713 763 Figure 1 Power IO connector Pin Signal Color 1 VIN_L brown 2 VIN_L blue 3...

Страница 15: ...h lights The inputs switch at approx 11 3V supply voltage 18V i e PLC The inputs switch at approx 50 of the supply voltage supply voltage 18V Max output voltage for each output is 200mA Current limite...

Страница 16: ...ECTIONS 15 7 2 2 LAN Manufacturer Binder Description x coded flange receptacle Number of contacts 8 Area M12 D M12 X Order code 99 3782 210 08 Serien 825 876 Figure 2 x coded flange receptacle Pin Sig...

Страница 17: ...en flashing FPGA loaded Once software is running Software is in Configruation mode Green permanent Inspection programm is running Red flashing Software updating WARNING DO NOT disconnect from power su...

Страница 18: ...1280 x 1024 MPixel 1 3 Shutter type Pipelined Global Sensor size 1 1 8 Unit cell size m 5 3 x 5 3 Exposure time 10 s 1 s ADC resolution output 10 bit 10 8 companding 8 bit SNR 41 dB DR normal HDR 62...

Страница 19: ...alid modes input output trigger flash Size without lens B x H x L 65 x 40 x 99 5 mm IP67 Power consumption less than 5W Power supply 12V to 24V DC 10 o Power consumption 360mA 12V or 180mA 24V Permiss...

Страница 20: ...mera will start which will take approx 30 seconds The smart camera will load the most recently opened inspection program and will continue with the most recently used operating mode active inactive 8...

Страница 21: ...etwork you can also connect to them If you are connected to the smart camera correctly you will see the homepage of mvIMPACT Configuration Studios mvIMPACT CS Alternatively you can use Windows Explore...

Страница 22: ...ally on your computer 2 Press the keys Windows R enter the address of the update directory e g gemini 000110 updates and confirm with Enter NOTE Please note the correct entry of the characters NOTE In...

Страница 23: ...BlueGEMINI Technical Manual EN v1 2 2 UPDATES UPDATE SOFTWARE 22 4 After a few minutes the update is finished and the LED status indicator PWR Power will change to green The camera is then ready to us...

Страница 24: ...er of the Disconnect message has to close the socket The smart camera supports one active UDP connection If a UDP connection exists it will be closed as soon as another Connect message is recieved The...

Страница 25: ...e camera which do not comply with the given format wrong magic number wrong length unknown message ID The magic number is used to avoid accidential transmissions It is recommended to check the magic n...

Страница 26: ...Message ID The smart camera answers with a Connect message Lenght in bytes Structure Value Description 4 uint32 42565350hex Magic number 4 uint32 04hex User data length in bytes 4 uint32 01hex Messag...

Страница 27: ...rams Each of this program has a unique inspection ID This section indicates the inspection which created the result container x uint8 Result data as specified in mvIMPACT Configuration Studio mvIMPACT...

Страница 28: ...length in bytes 4 uint32 31hex Message ID 4 uint32 01hex Program ID The smart camera answers with a status message containing the program number Lenght in bytes Structure Value Description 4 uint32 4...

Страница 29: ...answers with the current date and time Lenght in bytes Structure Value Description 4 uint32 42565350hex Magic Number 4 uint32 18hex User data length in bytes 4 uint32 32hex Message ID 4 uint32 Year 4...

Страница 30: ...ch are compared with the acquired data of the smart camera These data can be sent to the smart camera using this message The tool Receive data interprets the input data Lenght in bytes Structure Value...

Страница 31: ...bytes 4 uint32 41hex Message ID Stop inspection Is sent to the camera to stop an inspection Untriggered inspections will stop and will not send results anymore while triggered inspections will ignore...

Страница 32: ...era is 192 168 1 230 The port 60001 is used to get results from the camera Connect echo n e x50 x53 x56 x42 x00 x00 x00 x00 x01 x00 x00 x00 nc uw 1 p 60001 192 168 1 230 36701 Start inspection echo n...

Страница 33: ...mvBlueGEMINI Technical Manual EN v1 2 2 APPENDIX CONTROL COMMANDS 32 Figure 4 Packet Sender for testing the UDP communication...

Страница 34: ...ower supply 6 The camera now starts up and establishes a network address with the connected PC This may take up to 5 minutes 7 Follow the sequence mentioned in the First steps chapter under Connecting...

Страница 35: ...cc757386 v ws 10 aspx If you still cannot connect to the camera using Intel network cards try to install the driver without Intel PROSet for Windows Device Manager and without Advanced Network Service...

Страница 36: ...n also reach the camera with the IP address directly in this sample 169 254 4 9 Connection to the camera possible however a dialog appears that the connection to the camera was lost Firewall active Pl...

Страница 37: ...art camera Different problems need to be overcome with different solutions depending on the network topology These are discussed below 10 3 2 Terms simplified description Switch is a simple distributo...

Страница 38: ...for selection 10 3 3 2 Server uses a Zero Conf address and a fixed IP in an external subnet The client then also has to use a Zero Conf address set dynamic IP address under Windows with no DHCP serve...

Страница 39: ...all queries on one of its ports to a specific smart camera port i e this forwarding must be manually configured for every smart camera The Avahi service is not used The client accesses the open firewa...

Страница 40: ...openvpn net how to tutorialsguides virtual platforms site to site layer 2 bridging using openvpn access server In this case the two Open VPN servers must be configured so that they transmit direct ne...

Страница 41: ...mvBlueGEMINI Technical Manual EN v1 2 2 APPENDIX NOTES ON NETWORK CONNECTIONS 40 Versions with OpenVPN bridge...

Страница 42: ...mvBlueGEMINI Technical Manual EN v1 2 2 APPENDIX NOTES ON NETWORK CONNECTIONS 41...

Страница 43: ...he diagonal of the image field For example an 8 mm lens behaves like a wide angle lens in combination with a 1 inch sensor In contrast the same lens behaves like a telephoto lens in combination with a...

Страница 44: ...l you can determine the camera Example If an accuracy M of 0 1 mm is needed you have to use twice as many resolution points F according to the sampling theorem which results in a measurement resolutio...

Страница 45: ...h the given focal length the object distance Figure 5 Focal length formula f g B G B If the size of the sensor B the size of the object G and the object distance g are known you can calculate the need...

Страница 46: ...ese errors The wavelength of the light has a great influence on the image For each wavelength the image quality is good and or is sharp in different spots By the use of the mentioned corrections with...

Страница 47: ...Zoom lenses ofter consist of 10 or more lenses Real lenses have an entrance pupil and an exit pupil The parameters b and g are calculated starting from these levels If the distance of the levels equal...

Страница 48: ...tances called flange focal distance C mount lenses for example have a flange focal distance of 17 5 mm which is independent from the focal length CS mount 12 5 mm With the help of adapters lenses with...

Страница 49: ...e golden rule is create contrast A lighting system can be homogeneous or structured Following table shows the effects and the characteristics of lighting systems Effects Light specifications Without s...

Страница 50: ...rent possible uses Direction Angle Applications Speciality Background lighting Bright field transparent and opaque as well as flat or spatial parts often in combination with diffuse or telecentric lig...

Страница 51: ...for surface inspections also highly reflective parts difficult with dirt 10 4 2 2 Lighting structure Besides homogenous light there are following lighting structures Dimensions Illuminant Procedure Sp...

Страница 52: ...2 Light grid Grid projection method phase shift process returns dense spatial information 10 4 2 3 Further factors Further factors of lighting systems are wavelength o color type of lamp o incandescen...

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