Garantia da qualidade 3
Kwaliteitswaarborg
Kvalitetssikring 4
Gwarancja jakości
1Luminosity and Colour
Using an Integrated Photometer, luminosity or the light output, is measured against the requirements. This calibrated sphere compares the light output of the sample against a calibrated bulb from the National Physics laboratory. The light output is then checked and verified against the relevant standard. Bulbs are checked for colour compliance by comparing the output to chromaticity values defined in the standards.
Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6
CIE Chromaticity Chart Sample H7 Bulbs
3Lamp Dimensions and Filament Positions
Lamp dimensions and filament positions are tested on a shadowgraph magnification projector.
With the increasing use of complex surface reflectors on both front and rear lighting it is becoming more and more important that the filament is located at the correct position. Failure to do this will result in a very poor beam pattern as the source of light is not at the focal point of the lamp unit. With tolerances of only 0.1mm the importance of this test cannot be over stressed.
ECE REG 37 E marking
ECE Reg 37 is the European Standard for automotive bulbs implemented to guarantee the performance standards of bulbs. It applies to most exterior lighting and has been adopted throughout Europe. Only bulbs carrying an appropriate E mark can be used on the road. “Off-road vehicles” are exempt. Gas discharge lamps have their own standard which is ECE REG Reg.99.
Ultra Violet light can damage headlamps manufactured with plastic components making lenses brittle and cloudy. Ring headlamp bulbs are UV cut to protect the vehicles lighting systems.
Environmental legislation introduced in July 2006 prohibits the use of lead in bulbs. Ring bulbs are now manufactured using lead free solder and lead free glass.
Other procedures carried out are:
• Envelope to lamp holder test – the bulb is torque tested against calibrated weights to ensure the cap is sound.
• Cap dimensional test – the bulb cap is checked against calibrated gauges to ensure the correct fit to a lamp holder.
• Envelope test – the glass envelope is checked against calibrated gauges to ensure the correct size.
2Life Testing
Bulbs are tested for their static life using a computer controlled life test rack.
This accelerates the life of a bulb using an increased voltage of between 110.0-116.6% as specified by BSI or I.E.C standards.
This life test is not a continuous test but a cycle test that switches the bulbs off and on to put the maximum load on the bulbs. In the case of twin filament headlamp bulbs the test alternates between the main and dipped beam filaments.
4Vibration Testing
Whilst there are no internationally agreed standards for Automotive Bulb Vibration testing, Ring carries out vibration testing on a flat bed vibration rig. The amplitude and the frequency of the vibration can be adjusted to create a variety of adverse conditions. This test is the nearest we can get to simulating what happens on the road and is particularly relevant to the arduous conditions found in the commercial vehicle market. Ring is able to bench mark it’s products and those of it’s competitors.
autosales@ringautomotive.co.uk
www.ringautomotive.co.uk
41
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91