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Oreshak: old village, environs, nature
about our village
Oreshak

choosing a settling place in Varna region
the chronicle:
choosing a settling place
in Varna region

     

Thrifty lighting for seed plot

hypothesis:
Photosynthesis was adapted to radiant energy of red light, to feeble sunlight in conditions of the ancient heavy atmosphere.
experiment:
Plants lighting with continuous non-pulse direct feeble red light.

Illumination device

Figure 1.
Electrical scheme with LEDs (ultra bright light-emitting diodes) for the lighting with continuous non-pulse direct red light.

Figure 1. Electrical scheme for the lighting by continuous nonpulse direct red light.
 

Electric parameters and electronic elements for light-emitting diode scheme

Uinput - pulse direct +14 Volts
C1 - electrical condenser 1000 microfarad (mcF), 25 Volts
R1 - 36 Ohms ballast resistor
D1-D12 - 5-millimetres ultra bright light-emitting diodes (LEDs) luminous intensity 5800-7000 mCd (millicandelas), red light wavelength 620-625 nm, maximal current 30 mA, viewing angle 20 degrees (crystal clear)
ILEDs - non-pulsate direct current 47 mA (milliAmpere)
ULEDs - 12.3 volts
 

Technical data
Input LEDs power: 0.58 Watts
Lighting area: 9 centimeters2

 

Additional soft red and blue lighting diodes

Figure 2.
Electrical scheme for LED lighting.

Figure 2. Electrical scheme for LED lighting.
 

Electric parameters and electronic elements for blue light-emitting diode scheme

Uinput - direct +14 Volts
R1 - 200 Ohms ballast resistor
D1, D2 - 5-millimetres blue ultra bright light-emitting diodes (LEDs), luminous intensity 5800-7000 mCd (millicandelas), blue light wavelength 475 nanometer, maximal current 30 mA, viewing angle 20 degrees (crystal clear)
ILEDs - direct current 38 mA (milliAmpere)
ULEDs - 6.65 volts
 

Electric parameters and electronic elements for red light-emitting diode scheme

Uinput - direct +14 Volts
R1 - 250 Ohms ballast resistor
D1, D2 - 5-millimetres red ultra bright light-emitting diodes (LEDs), luminous intensity 5800-7000 mCd (millicandelas), red light wavelength 620-625 nanometre, maximal current 30 mA, viewing angle 20 degrees (crystal clear)
ILEDs - direct current 42 mA (milliAmpere)
ULEDs - 3.92 volts
 

 

Luminous flux pulsations of the artificial lighting sources is supplied by pulse direct current and non-pulse direct current

Figure 3.
Luminous flux pulsations of the artificial lighting sources.

Figure 3. Luminous flux pulsations of the artificial lighting sources.
 

T  - 0.01 second for 50 Hertz (Hz) frequency or 0.008(3) sec for 60 Hertz frequency
U1 - pulse voltage (direct current, DC)
U2 - non-pulse voltage (direct current, DC)
F1 - pulse luminous flux of light emitting diodes (LEDs), supplied by pulse voltage U1
F2 - non-pulse luminous flux of light emitting diodes (LEDs), supplied by non-pulse voltage U2
F3 - pulse luminous flux of incandescent light bulbs, supplied by pulse voltage U1
F4 - non-pulse luminous flux of incandescent light bulbs, supplied by non-pulse voltage.

  >> More articles - part Economical eco building and engineering  

 
 
     
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