Parshield Floodlight Shields

The bane of every astronomer's existence.
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Christopher K.
Posts: 4654
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Parshield Floodlight Shields

Post by Christopher K. » September 8th, 2013, 2:58 pm

The original idea was for last year's donation drive at HRPO to fund the purchase of a pair of Parshield outdoor floodlight shields. However, the Brooklyn company has graciously donated them free of charge after I said it would be used as a light pollution display. HRPO's status as a not-for-profit entity probably had something to do with the decision.

The shields come two to a box, either in off-white (#100, which is what I requested) or bronze (#200). They are basically 14cm x 14cm x 14cm, powder-coated and metal. According to Gary, a "long time amateur astronomer" and the one who shipped them, the shields will clip onto...
*TCP 19w PAR-38 Floodlight [1P3819]
*Philips 20w PAR-38 Reflector [20WMedPAR38ALTO]
*Feit 23w PAR-38 EcoBulb Floodlight [ESL23PAR38T]
*EcoSmart 24-Watt (120W) Bright White LED Flood Light Bulb [ECS 38 V2 WW FL 120]

He also said this was an older list and newer models may also work.

More information:
http://www.parshield.com/index.html

Christopher K.
Posts: 4654
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Parshield Floodlight Shields

Post by Christopher K. » November 3rd, 2014, 7:58 pm

To celebrate both the year-round status of GLOBE at Night and the second Good Lighting Award from BRAS (given to the new location of Woman's Hospital), the Highland Road Park Observatory may have a temporary efficient lighting display soon. If so, patrons should look for these shields.

Poppa-Chris
Posts: 112
Joined: December 13th, 2012, 5:32 pm
Location: Denham Springs, LA

Re: Parshield Floodlight Shields

Post by Poppa-Chris » November 11th, 2014, 9:38 pm

Good discussion on light pollution.

https://www.youtube.com/watch?v=zSyovTM9qkg
Poppa-Chris


"First star to the right, then straight on until morning!" - Peter Pan

Christopher K.
Posts: 4654
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: Parshield Floodlight Shields

Post by Christopher K. » February 22nd, 2019, 3:03 pm

The watt--the "consumption of energy at the rate of one joule per second" (thanks, David Darling)--is named for James Watt. Watt and Isaac Newton whose experiments will be highlighted in the kid's session "Historic Experiments II". Registration begins on 23 February for this session; it will take place on Saturday 9 March from 10am to 12pm, for eight- to twelve-year-olds. The cost is five dollars per EBR-Parish registrant and six dollars per other-parish registrant.

More information:
http://hrpo.lsu.edu/programs/academy.html

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