| Operating
principles |
-True
BGS
-Diffuse
-Retroreflective
-Throughbeam
|
- BGS???
-Fixed
Field
-
Retro
- Throughbeam
|
- Convergent
- Diffuse
- Retro
- Throughbeam
|
- Convergent
(fixed)
|
- Convergent
- Diffuse
- Retro-reflective
- Throughbeam
|
| Range |
- True
BGS – 10 - 60mm
-
Diffuse – 20 - 150mm
-
Retro – to 500mm
-
Through – to 2m
|
- BGS?
- 15 or 30mm
-
Fixed – 2-55mm
-
Retro – to 800mm
-
Through – to 1.2m
|
- Conv – 15 & 30mm
-
Diffuse – to 30mm
-
Retro – to 200mm
-
Through – to 1m
|
- Fixed
- 10 or 20mm
|
- Conv – 10mm
-
Diffuse - to 160mm
-
Retro – to 200mm
-
Through – to 2m
|