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At a previous museum's 3D exhibition we contended with the same issue. We
opted for the plastic option. People were fairly respectful about returning
them, but by the end of the exhibit run, the numbers had significantly
dwindled.

They are fairly durable and easy to clean. We were a small operation, so we
assigned cleaning duties to the gallery guards. Of course, we only had 200
pairs. There are cleaners out there and perhaps it's not the best method,
but we just used rubbing alcohol.

As far as cost, they lasted a nearly a year (before disappearing) and were
far more economical for our attendance numbers than paper ones.

Best,
Karen


----------------
Karen Eckhaus
Exhibits Coordinator
Brooklyn Children's Museum


On 1/2/07 10:29 PM, "CK Wong" <[log in to unmask]> wrote:

> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
> 
> Hi All
> 
> At our museum, we are getting more and more exhibits require polarized
> eyeglasses for 3-D shows.  Then, we immediately come to a dilama whether
> use-once paper type or reusable plastic one is more economy.
> 
> Now, we are using paper one (linear) costs around US$0.12 each.  However,
> the next exhibit will use circular one that costs around US$1.4 each.  This
> really drive us to think twice whether to clean the plactic one by washing
> machine will be cost effective.
> 
> Therefore, I would eagler to know your experience in using plactic polarized
> eyeglasses and whether you have them cleaned in-house or by outside service
> provider?
> 
> Thanks
> 
> CK WONG
> Senior Technical Officer
> Hong Kong Science Museum
> 
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