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GeoVision Inc.                                                            1                                          Revision Date: 11/9/2011 

 

 

Solving IR Reflection and   

Improving Night View   

 

 

 

Article ID: GV15-11-11-09-c 

Release Date: 11/09/2011 

 

 

Applied to   

Vandal Proof IP Dome   

(GV-VD120D/121D/122D/123D, GV-VD220D/221D/222D/223D, 

GV-VD320D/321D/322D/323D) 

Fixed IP Dome (GV-FD120D/220D/320D) 

 

Summary 

If you are having difficulty getting clear live views under low light conditions with your Vandal 

Proof IP Dome or the Fixed IP Dome, this is likely due to IR reflections inside the camera. To 

solve the IR reflection problem, you can choose to 

disable the IR Light function

 if there is 

sufficient lighting on the installation site. If you do not have enough lighting on the installation 

site, proceed to identify the possible causes and adopt the solutions to reduce IR reflection 

and improve the quality of live view. 

 

Summary of Contents for GV-FD120D

Page 1: ...aving difficulty getting clear live views under low light conditions with your Vandal Proof IP Dome or the Fixed IP Dome this is likely due to IR reflections inside the camera To solve the IR reflection problem you can choose to disable the IR Light function if there is sufficient lighting on the installation site If you do not have enough lighting on the installation site proceed to identify the ...

Page 2: ... external IR illuminator sufficient lights Disable IR Light function See Solution 4 page 13 See Solution 6 page 22 Is my live view foggy Are there round spots or water droplets on my live view Are there light spots or glass reflection on my live view No No No YES YES YES See Solution 3 page 10 Solution 5 page 16 See Solution 1 page 5 Solution 2 page 8 Is there a circle of spots on my live view YES...

Page 3: ...ent lights or an IR illuminator installed on the installation site The disabling the IR function is available on the camera with firmware version 1 07 or later Note The minimum amount of light in lux required in night mode and the corresponding live image are detailed below For GV VD120D 121D 122D 123D GV FD120D approximate 4 lux For GV FD220D 320D GV VD220D 221D 222D 223D GV VD320D 321D 322D 323D...

Page 4: ...GeoVision Inc 4 Revision Date 11 9 2011 To disable the IR On the Web interface select Streaming 1 under Video Settings select Off for IR Light and click Apply ...

Page 5: ...ceed to identify the causes and adopt the suggested solution 1 Are the screws properly tightened Spots in a curve Live view with loosen screws showing spots in a curve Vandal Proof IP Dome GV VD120D 121D 122D 123D GV VD220D 221D 222D 223D GV VD320D 321D 322D 323D Tightly secure the 4 screws inside the housing cover ...

Page 6: ...GeoVision Inc 6 Revision Date 11 9 2011 Tightly secure the 4 screws on the housing cover Fixed IP Dome GV FD120D 220D 320D Tightly secure the 4 screws inside the housing cover ...

Page 7: ...GeoVision Inc 7 Revision Date 11 9 2011 Tightly secure the 2 screws on the housing cover Solution Check the inside and outside of the housing cover and be sure the screws are properly tightened ...

Page 8: ...D light from reflecting inside the camera cover If your rubber band is loosened or not properly fitted some light may reflect inside the cover and affect the quality of the live view Live view with displaced rubber band showing a circle of spots Top View The rubber band is out of position Side View The rubber band is out of position ...

Page 9: ...n Side View The rubber band is at its normal position Solution Check if the rubber band is properly fitted and completely attached to the camera cover when the cover is attached If your rubber band is still loose after your adjustment contact the vendor or local distributor for replacement ...

Page 10: ... dirty For a foggy live view your cover may be dirty from dusts finger prints or debris Note If your camera is installed in a dusty or moist environment your camera may need regular maintenance Live view through a dirty cover appears foggy Cover with dusts ...

Page 11: ...rget or spraying for a long period of time can damage the cover coating 2 Clean the cover with lens cleaning cloth in one direction to avoid any possible scratch 3 If the cover is still dirty spray small amount of clean water on the cover and use lens cleaning cloth to clean the cover again IMPORTANT 1 Do not use clothes or any ordinary material to clean the camera cover since they may result in s...

Page 12: ...2 Revision Date 11 9 2011 Non abrasive Wipes For example PEC PAD Non Abrasive Wipes http mpex com pec pad non abrasive wipes 4x4 quot 100 pk html Chamois Skin Cleaning Cloth http en wikipedia org wiki Chamois_leather ...

Page 13: ...especially for the outdoor camera such as Vandal Proof IP Dome Water may also condense inside the camera if the silica gel bag in the camera loses its effectiveness Note If your camera is installed in a dusty or moist environment your camera may need a regular maintenance Live view through a wet cover showing round spots An example of condensation on the outside of cover ...

Page 14: ... Is my cover dirty to remove any dust or debris on the cover 2 Use some tissue to absorb the water Note Do not rub the cover with tissue since it may result in scratches 3 Clean the cover with the suggested lens cleaning cloth see the solution for 3 Is my cover dirty Be sure to swipe in one direction to avoid any possible damage to the cover 4 If the live view is still unclear spray small amount o...

Page 15: ...w silica gel bag IMPORTANT 1 Be sure the silica gel bag is concealed in the camera after 2 minutes of exposing to open air 2 Be sure to replace the silica gel bag every time you open the camera Note For a video demonstration of replacing a silica gel bag visit the following YouTube link http www youtube com watch feature player_embedded v w0JYkT57y7w noredire ct 1 ...

Page 16: ...cannot tell whether the cover is dirty or scratched first clean the cover by following the cleaning instructions mentioned in 3 Is my cover dirty If the live view is still blurry after cover cleaning your cover may be scratched and you will need to contact the vendor or local distributor for cover replacement Note The cover for GV IP Camera series is a consumable item and is thus not included in t...

Page 17: ...ution to clean your cover 2 Check if the live view is clear If your live view is still blurry your cover is likely scratched In such case contact the vendor or local distributor for cover replacement and then proceed to fit the new cover 3 Unscrew to open the housing cover 4 Unscrew the thread lock 5 Unscrew the indicated parts and remove the iron ring Iron ring An iron ring ...

Page 18: ...vision Date 11 9 2011 6 Push the old cover out 7 Put on the new cover and insert the black mask New cover Black mask A black mask A cover Make sure the rubber ring is correctly fitted with two lines facing up Single line ...

Page 19: ...GV FD120D 220D 320D 1 Follow the steps in the previous solution to clean your cover 2 Check if the live view is clear If your live view is still blurry your cover is likely scratched In such case contact the vendor or local distributor for cover replacement and then proceed to fit the new cover 3 Remove the housing cover For Hard Ceiling Mount Wall Surface Mount and L Shaped Wall Mount use the sup...

Page 20: ...GeoVision Inc 20 Revision Date 11 9 2011 4 Unscrew the indicated parts inside the housing cover and remove the plastic ring A plastic ring 5 Push the old cover out ...

Page 21: ...ge to avoid making fingerprints on the cover 7 Follow steps 3 and 4 to secure the plastic ring thread lock for In Ceiling Mount and the housing cover Note For a video demonstration of how to replace a cover visit the following YouTube links Vandal Proof IP Dome http www youtube com watch v ghWHQBo4LPQ Fixed IP Dome http www youtube com watch v CKto9JL 1tE ...

Page 22: ...ny reflective surface such as a white ceiling or glass In these cases lights may reflect in the camera when the IR LEDs are on Live view through a glass showing light spots Solution Try to adjust the angle of the camera and z for reflective ceiling cover the ceiling with non reflective material z for glass reflection it is advisable to relocate the camera ...

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