New unit Lux and illuminance quantity (#750)

* New unit Lux and illuminance quantity Signed-off-by: Haller Mike (ETAS-E2E/XPC-Fe) <[email protected]>
COVESA · Jul 11, 2024 · 88b54b8 · 88b54b8
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diff --git a/spec/quantities.yaml b/spec/quantities.yaml
@@ -78,3 +78,5 @@ relation:
 resistance:
   definition: Property of a resistive element, equal to the scalar
             quantity given by the quotient of voltage u and electric current i (IEC 80000-6:2022)
+illuminance:
+  definition: Illuminance is the total luminous flux incident on a surface, per unit area, usually measured in Lux
diff --git a/spec/units.yaml b/spec/units.yaml
@@ -398,3 +398,11 @@ Ohm:
   unit: Ohm
   quantity: resistance
   allowed-datatypes: ['numeric']
+
+# Illuminance
+
+lx:
+  definition: Light intensity in Lux
+  unit: lux
+  quantity: illuminance
+  allowed-datatypes: ['numeric']