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Home My WebLink AboutREDTAIL MAJOR AMENDMENT - FDP - 26-01C - CORRESPONDENCE - PHOTOMETRIC PLAN (6)Steve Olt - r4sc-r4w.pdf Page 6] KSE2 4O0M R4SC Tem rxr. 11950.1021 'i S9S Y r r nr tx« n.r I V.v.rmoere..a r.. a n ,a.,� r.qr. aobv.l• run rur I,X*VW wiA h"k lamp IO7.9.L tx,l I..�.. bvw. Jv rA" IavJ m IS' mumun4 h.:_' .Mrl�utYm T2pr R:.h.rp aur.n 1'I 0 L/THON/A L/GHT/NG h`U: r.bmrl�y�nnr .pr: v .- KSE2 4OOW R4W GSL Tr,l 13" 191 Eyai � y r r t i[TF.r .OtN rIy991p ip 11004 � •..r. rrpro.9. w.rr tram 35 I�U�i' m l h h& tmp IOi8.1S rmr d hmrm. h. n..r.Jk •.Aw, 60,m IS --rrrl: hn9hr, .h.m6mm Tvle M em.a1. www.11thonle.com LMw91b LjhYllO ar... Nr.r. CMc LMnr Niy con>ms, ;ra p013 Pnon TM 9229000. mar1109191200 h CMML%u 1100 50P &A lxnre. ck Q W P: i Steve -Olt- r4sc-r4w.pdf Page 5 ACCEPTABLE COMBINATIONS OF REFLECTORS AND LUMINAIRES K5E1 R4SC KSE2 R45C, R4W KSF1 - R45C KSF2 -R45C, R4W Steve Olt - r4sc-r4w.pdf Page 4 WHEN WIDE IS AS IMPORTANT AS FORWARD THROW AND CUTOFF, NO OPTICAL SYSTEM BEATS R4W armor Irarkmg hw mquirr hah tvmmewr and ultrrkn rk Jv kl awm tot a kmuate cawcrayt. llw Lath.nva R4W is k-mowd w Imo uwd mi mtcrk.r r%Je haatkvk, but .an alm: tv mwd annlrk[ dw prrrnrter To thnm 6jjhl Fat mnl thr parkrrW hx with trmunal p ol. hs twos. Whrn uwd, t mirrkv puk la wKwis. the R4W w cap" iiftaJucuw in rallaUl+n uut. hti.uux It avnhuws ILW*Atd [prow Jtst "tktn With wkle lat ral Jatrtivimm. Steve Olt - r4sc-r4w.pdf Page 3 WHEN IT COMES TO REDUCING LIGHT TRESPASS, NO OPTICAL SYSTEM BEATS R4SC he m.+t effective way to minimix spill hit horn a Marling La t., to loc is tiaward dtr..w (lhS nr- 4).,"ics nrouml the pcnnwtet Lnhmm L"hnn;;. R44L' n de.tynwd .pecd"IV Ar thin, :4,4ta:1tum. Mwhtng minimixs spill light as well. 11-w R4yt.: dtstrtbumm wus,lcstgnLA n. pnae.t the wmxtndinL envmvinient h.m unwanwi light tnspum As shtw,n in the dtustratim, heLm. Mict tom-ard thvra disinbutt.,n, sTdl atnv4wte horn II A't'i. al The lumimmtc% hurt hchind dw pole onto .ummi"ne mwrTm r1w-R4tif'JLm,1.-s.rh,n 4%bhiri,h.-m4r Anirhrr ti-n.-fit..trhr R4-4'.1.•....., Steve Olt - r4sc-r4w.pdf Page 2 LIGHTING TECHNOLOGY AT ITS FINEST. Increased emphasis on controlling stray light in outdcxt applications is .ending designers in search of new lighting owls. Lithotim Lighting now addresses these needs with full cutoff luminaires equipped with application specific distribution patterns, • THE NEED: Ti pro idc parking lot lighting that offers safety, and security in an energy efficient and cost effective manner. • THE CHALLENGE: To protect adjacent property from objectionable glare and spill light; to put the right amount of light in the right place in the Most cuss effective manner. NIF• THE SOLLrr1ON: Lithonia Lighting Luminaires equipped with R4SC and R4W distributions. t ....._._.., ram...._........... �� .�.. te.�.�� APPLICATIO CIFIC OPTICAL SYSTEMS 4SC/R4W IA L/THdN/A L/6NT/1v!i Steve Olt - FW: Redtail Major Amendmer Page 3 Direct:(970) 498-2983 Fax:(970) 224-1662 -----Original Message ----- From: Cathy Mathis [mailto:cmathis@vfavfr.com] Sent: Thursday, August 23, 2007 1:09 PM To: Louise Herbert Subject: FW: Willow Street Lofts -----Original Message ----- From: Robert Hawkins[mailto:rhawkins@TheLightingAgency.com] Sent: Thursday, August 23, 2007 12:05 PM To: V.F. Ripley - Cathy Subject: Willow Street Lofts Cathy, Attached please find the analysis we were discussing. I did keep the replacement fixture to the WSTM (mini) even though it's optics are not the best. They are a little fatter left right and a little shorter forward throw than the original TWAC. This gives us some improvement in some areas with a little bit less light in others. We could certainly go the bigger WST and outperform either optics but with a bigger and more expensive fixture. Please take a gander at the attached and let me know if you have any questions. Regards, Bob Hawkins Application Engineering Manager Thel-ightingAgency.com 2661 17th Street Denver, CO 80211 ph: 303.455.1012 fx: 303.458.8247 ;Steve Olt - FW: Redtail Major Annendmer Page 2. has the best backlight control available on the market. It allows light to actually escape forward AND to the sides while radically limiting backlight thus making the parking lot it's used in safe (without dark shadows between perimeter fixtures in the lot itself). With external shielding, the side to side throw can be severely cut off and not light the areas needed in the lot if the backlight is controlled well, while if the side to side is maintained you often have more back spill than desired at the sides. The R4SC is such an innovation that the manufacturer has even put together a full color brochure to explain the physical properties of the optical system. I have attached that brochure to this email for your review. If someone wants to insist upon installing external shielding to a fixture that does not need it, that is something beyond my control. There is no factory supplied external shield since it has been deemed not optically necessary due to the availability of the R4SC optical system. I'm sure a contractor could cut up some sheet metal for you, paint it and attach it to the fixture if absolutely necessary, but I would try to plan on evaluating the fixture in the field first, and then determining if such measures are really necessary, and if they would inhibit the in lot performance. I hope this explanation is of help to you Have a great day. Bob Hawkins Application Engineering Manager TheLightingAgency.com 2661 17th Street Denver, CO 80211 ph: 303.455.1012 fx: 303.458.8247 -----Original Message ----- From: Louise Herbert [mailto:lherbert@vfavfr.com] Sent: Monday, August 27, 2007 4:12 PM To: Robert Hawkins Subject: Willow Street Lofts and Redtail Bob Please can you call to review this and the Redtail project.We plan to submit both this Wednesday. Louise Louise Herbert VF Ripley Associates 401 West Mountain Ave, Suite 201 Fort Collins, CO 80521 Steve Olt - FW: Redtail Major Amendmer _ Page 1 From: "Louise Herbert" <Iherbert@vfavfr.com> To: <solt@fcgov.com> Date: 9/26/2007 12:38:08 PM Subject: FW: Redtail Major Amendment Louise Herbert VF Ripley Associates 401 West Mountain Ave, Suite 201 Fort Collins, CO 80521 Direct:(970) 498-2983 Fax:(970) 224-1662 -----Original Message ----- From: Louise Herbert (mailto:lherbert@vfavfr.com] Sent: Wednesday, September 26, 2007 11:53 AM To: dleavitt@fcgov.com Cc: Jon Prouty; .solt@fcgov.com Subject: Redtail Major Amendment Dana Please find attached lighting information and an explanation below on the site lighting from our lighting consultant, Bob Hawkins at the Lighting Agency. This information was submitted with the last re -submittal on 8/29/07.It addresses comment # 36 - photometric plan on the staff review comments dated 07/19/07 We hope that the explanation and catalog cut sheet information will clarify the lighting. If further information on the light type is needed I will need Bob Hawkins to call you to discuss with you and Steve Olt as he is most familiar with the technical aspects of the lights. If acceptable, please can you confirm you are satisfied that this item has been addressed with Steve Olt. Thank you. Louise Louise Herbert VF Ripley Associates 401 West Mountain Ave, Suite 201 Fort Collins, CO 80521 Direct:(970) 498-2983 Fax:(970) 224-1662 -----Original Message ----- Louise, I've read the comment regarding the internal shielding being "insufficient to screen light from fixtures." I would like to take exception to that comment. The internal optical system used in the fixture as we've chosen