Morton I just Googled 'Lunt 1,1/4 Hershell wedge' and the top of the first page is 'Lunt Solar Systems' .
On the left side , top is our Wedges and it states , quote ; ' The Lunt white light wedge comes with a built in ND3 filter which allows perfectly safe imaging or , if you wish to do visual observing of the sun we recommend dimming the image for your eyes with a polarizing filter'
Their words .
http://luntsolarsystems.com/blog/white-light-wedge
Brian.