Distribution of luminous intensity
Distribution of luminous intensity means how the light fixture produces and distributes the light to its surroundings. Read more about luminous intensity from Wikipedia.
The IES and Eulumdat files of the distribution can be used in computer programs such as DIALux. The figures and pictures of the distribution presented on these Internet pages are of one LED module, if not otherwise stated. When a light fixture has multiple LED modules and is rather far away from the object to be lighted (the relative distance between the light fixture and the object to be lighted is more than ten), the data of one module gives sufficient information on the distribution of luminous intensity. The quantity of light should be adjusted to correspond to the number of the LED modules.
The LED components are constantly developed and new, more powerful LEDs are introduced from time to time. In the Valopaa LED light fixtures, couple of different types of LEDs are used, and they are updated to the newest LED technique whenever possible. Therefore, the optics introduced on this page have data for two different power classes; depending on the LEDs used, the quantity of light with one LED module can be either 800 lm or 900lm.
When assembling a LED light fixture, it is possible to choose LED modules with different light distributions, and to align the LED modules to different directions. Lighting designers have the freedom to create very different lighting implementations. We continuously develop new optical solutions based on customer feedback.
Optics for street lighting
Lens V6. Developed especially for street lighting when pole distance is long. This optical lens can also be used in architectural lighting and street and area lighting from a low-rise pole.
| Light distribution files | |
| V6_800lm.ldt | V6_900lm.ldt |
The files contain the light distibution of only one LED module. Thus, take into consideration the number and alignment of the LED modules in each of the VP LED light fixture.
The distribution of luminous intensity of lens V6 has also been measured by Aalto University´s School of Science and Technology. The VP1101 M6 LED street light fixture, with lens V6, was used at the measuring. The Eulumdat file thus contains the light distribution of six LED modules.
Lens V11. The attached picture presents distribution of luminous intensity that is suitable for lighting of narrow streets. Best applicable for pedestrian streets and roads at residential areas, where light pollution is avoided.
| Light distribution files | |
| V11_800lm.ldt | V11_900lm.ldt |
The files contain the light distibution of only one LED module. Thus, take into consideration the number of LED modules in each of the VP LED light fixture.
The distribution of luminous intensity of lens V11 has also been measured by Aalto University´s School of Science and Technology. The VP2111 M2 LED light fixture, with lens V11, was used at the measuring. The Eulumdat file thus contains the light distribution of two led modules.
Lens V12. The attached picture presents distribution of luminous intensity that is suitable for lighting of typical residential streets with shorter distances between poles. Asymmetric light distribution produces a more even light to the street and less glare.
| Light distribution files | |
| V12_800lm.ldt | V12_900lm.ldt |
The files contain the light distibution of only one LED module. Thus, take into consideration the number of LED modules in each of the VP led light fixture.
The distribution of luminous intensity of lens V12 has also been measured by Aalto University´s School of Science and Technology. The VP1301 M6 LED street light fixture, with lens V12, was used at the measuring. The Eulumdat file thus contains the light distribution of six led modules.
Optics for general lighting
Rotationally symmetrical luminous intensity distributions, or optics with a round light beam, are suitable for spotlighting and general lighting, depending on the light fixture and lighting location.
Lens V8. 600 cd/module, beam of light 90°.
The adjacent picture presents a distribution of luminous intensity that is developed for general lighting. Thus, it is suitable to lighting of e.g. industrial halls and underpasses.
| Light distribution files | |
| V8_800lm.ldt | V8_900lm.ldt |
Lens V9. 200 cd/module, lambertial distribution of luminous intensity.
The adjacent picture presents a distribution of luminous intensity that is developed for general lighting.
| Light distribution files | |
| V9_800lm.ldt | V9_900lm.ldt |
Lens V9B. This light distribution has been designed especially for ceiling lighting, e.g. for underpasses and sheds at petrol stations. It is well suited for general lighting, for indoors as well as outdoors. The lens has been designed to minimize glare when light fixtures are installed to low ceilings.
| Light distribution files | |
| V9B_800lm.ldt | V9B_900lm.ldt |
Lens V9C. This light distribution has been designed especially for general lighting, and is thus well suited for garden and park lighting. It is also well suited for retrofit installations. The lens generates very wide round light beam.
| Light distribution files | |
| V9C_800lm.ldt | V9C_900lm.ldt |
Optics for spotlighting
Lens V7. 5000cd/module. Light beam 20°.
The adjacent picture presents a light distribution with optics that is intended for use in spotlighting and accent lighting.
| Light distribution files | |
| V7_800lm.ldt | V7_900lm.ldt |
Lens V10. 2000 cd/module, light beam 35°.
Developed especially for accent and spotlighting.
| Light distribution files | |
| V10_800lm.ldt | V10_900lm.ldt |
Specialty optics
Lens V13. Developed especially for lighting of signs and billboards.
| Light distribution files | |
| V13_800lm.ldt | V13_900lm.ldt |
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