Re: Solid Angles

[Bernard L Cohen <blc+@pitt.edu>]

It seems to me that the units could be watts/square meter or watts per 
steradian,but not both

On Wed, 30 Aug 1995, Alex Zapantis wrote:

> G'day All,
> 
> Could someone please explain the physical meaning of the unit:
> 
>          Watts per square metre per steradian
> 
> It's the "per steradian" which I am having trouble with.
> 
> In case you are wondering, this question is related to LASER safety.
> 
> Regards
> 
> 
> 
>                         Alex Zapantis
>                         Radiation Safety Officer                               
>                         Queensland University of Technology          
>                         Health & Safety Section                             
>                         Locked Bag No.2
>                         Red Hill Qld 4059
>                         AUSTRALIA
> 
>                         Ph     : 61 7 864 3566
>                         fax     : 61 7 864 3993
>                         email  : a.zapantis@qut.edu.au
> 
>