• Lighting Design

  broken HMI lens

  Posted by Brenda Negron on March 13, 2011 at 9:35 pm

  Has anyone had problems with the lenses of a DeSisti Remington 2.5/4k PAR HMI? We just bought one brand new that included a 5 lens kit, and on the second day of use one of these lenses broke (it was on the light fixture). It´s hard to tell how this could happen, there was no bad handeling of this item. If anyone has had an experience of this sort it would be very helpful to know of it.
  Thanks.

  John Sharaf replied 15 years, 2 months ago 2 Members · 1 Reply
• 1 Reply

• 

  John Sharaf

  March 13, 2011 at 11:59 pm

  Brenda,

  Don’t feel too bad, PAR lenses break all the time and aren’t too expensive to replace. In fact in the “old” days you often received a set of lenses with each new globe you purchased.

  I find that the one’s that break the most are the frosted fresnels, which are flat as opposed to bowled like all the other lenses. The problem is exacerbated when you use scrims, as the metal heats up and if it touches the glass, this is where the fracture occurs. I wonder if you were using a scrim at the time?

  When you replace it, buy the glass and use your old len frame holder, you’ll save a little $$$.

  JS

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