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--- thermalsensors [2020/05/05 00:28]
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+++ thermalsensors [2020/06/27 13:48]
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@@ Line 87: / Line 87: @@
 ==== Code ====
-  - Python Interfacing : https://github.com/groupgets/pylepton/tree/lepton3
+  * Python Interfacing : https://github.com/groupgets/pylepton/tree/lepton3
-  - Paper on the sensor: https://www.vutbr.cz/www_base/zav_prace_soubor_verejne.php?file_id=181847
+    * Use lepton3-dev branch for lepton3.x support
+    * Master got only lepton2.x support
+  * Live video: https://github.com/groupgets/LeptonModule/tree/master/software/raspberrypi_video
+  * Paper on the sensor: https://www.vutbr.cz/www_base/zav_prace_soubor_verejne.php?file_id=181847
 ==== Case ====
@@ Line 132: / Line 135: @@
   * Cheap Zinc Selenide ZnSe Lenses @ ebay: https://www.eevblog.com/forum/thermal-imaging/znse-lenses-on-ebay/
   * Thermal transparnt plastics: https://miltechlabs.com/index.php?route=product/product&product_id=986
+  * Cheap PIR thermal transparent windows: https://www.kube.ch/produkte/pir-optics/pir-fenster/
-Bought for testing:
-  * Germanium: https://de.aliexpress.com/item/32958470241.html
 ==== Test thermal transparancy of materials ====
+** Lepton 3.0 Germanium Lens**
+Bought here: https://de.aliexpress.com/item/32958470241.html
+* Transmission of lens
+{{::germaninumglas.jpg?600|}}
+* Without lens
+{{::0_latest_without.png?600|}}
+Intensity of hottest point: 210
+* With lens
+{{::0_latest_with_GLAS.png?600|}}
+Intensity of hottest point: 124
+The lens dampens the intensity of the heat by at least ~40%, whis is roughly in line with the chart above.
+It also created a lens center spot effect in the center of the image. We need to see if this might cause problems.
+To be tested in real life conditions.
 **Test different materials for thermal transparancy with Lepton 3.0 @ Pi4**