Пути повышения светодиодные Выходная мощность
Error message
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
- Warning: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of sites/all/modules/webform/webform.module).
Световая отдача является наиболее важным параметром светодиодный источник света , который является отношение выходе и передачи мощности ( блок лм / Вт ) . Чтобы увеличить световую эффективность светодиода, можно увеличить световой поток , испускаемый , то есть светодиодный выходную мощность. Для одного светодиода , выходная мощность очень мала, поэтому часто используя метод организации в кругу, чтобы получить большую выходную мощность , что, в свою очередь, приводит к большим размерам и тепловых задач и других недостатков . Для того чтобы получить оптимальное распределение между выходной мощностью и светодиодной количества, мы можем принять следующие меры :
1. Improving the cooling efficiency
LED light source is a cold light source , a single LED heat is small, but the LED dot matrix , as more number of LED , densely arranged , the heat can not be ignored , if not excellent thermal control , LED will not work, the output power will be greatly reduced . Improve the cooling efficiency of the method has high thermal conductivity material selection, improved heat dissipation area and improved methods [ 5 ] .
2. Adding a reflective (umbrella) cover
LED is very small, strong direction, but the divergence angle is large, such as surface-emitting LED, both horizontal and vertical divergence angle of 120 °. Increase the use of reflective ( umbrella ) cover , to collect as much as possible LED backward , stray light edges, etc. , to reduce the loss of light , so that the output power to maximize utilization .
3. LED collimation system design
LED array is a divergent light source. In order to reduce the loss of light, except from adding a reflective Increase (umbrella) outside of the cover, the illumination system can use a new LED collimating optical system design.
The method uses non- imaging optical system so that the effective luminous flux of the LED array converge the light flux into a beam of high brightness and result in a smaller divergence area, thus increasing the LED output power.