| Optics - Showing threads 1 to 200 of 355 available |
▫ kinetic light drum sculptures ▫ 09-21-2008 01:16 AM - 2 replies
▫ Focus Problem ▫ 09-11-2008 08:51 PM - 0 replies
▫ Slide Projection ▫ 09-02-2008 05:34 PM - 0 replies
▫ Light Meter ▫ 08-29-2008 04:51 PM - 2 replies
▫ light switch ▫ 08-27-2008 12:39 PM - 4 replies
▫ Zemax or other optical design program ▫ 07-30-2008 11:52 AM - 1 reply
▫ dlp vs lcd: efficiency ▫ 04-08-2008 03:29 AM - 0 replies
▫ long throw or zoom lens attachment ▫ 03-30-2008 05:36 AM - 0 replies
▫ Liquids for lenses, IR and Abbe numbers ▫ 03-24-2008 07:39 AM - 2 replies
▫ Lenses sale ▫ 02-11-2008 01:52 PM - 0 replies
▫ DIY Anamorphic lens for tabletop projector ▫ 10-27-2007 04:20 PM - 3 replies
▫ Images ▫ 10-27-2007 04:20 PM - 0 replies
▫ Fresnel lens for lightware vp800 ▫ 09-01-2007 11:51 PM - 0 replies
▫ Fresnel for 345mm triplet? ▫ 08-16-2007 02:59 PM - 0 replies
▫ refractive indicies of glass ▫ 07-24-2007 11:51 PM - 16 replies
▫ Viable throw OHP ▫ 07-19-2007 04:51 PM - 0 replies
▫ Has anyone bought from 3DLens.com? ▫ 06-22-2007 12:51 PM - 0 replies
▫ Long focally length lens ▫ 06-14-2007 03:03 PM - 0 replies
▫ need OHP optics in layman's terms! ▫ 06-05-2007 07:05 PM - 1 reply
▫ 3D LCD film ▫ 03-23-2007 06:35 PM - 0 replies
▫ 317 mm fresnel lens help ▫ 03-21-2007 12:55 AM - 1 reply
▫ The match of illuminating and projection system ▫ 03-20-2007 07:53 AM - 0 replies
▫ DIY Long Throw adapter? ▫ 02-18-2007 07:22 AM - 1 reply
▫ A property of lenses ▫ 01-31-2007 07:32 PM - 0 replies
▫ What did you use for the Objective lens??? ▫ 12-29-2006 05:50 AM - 0 replies
▫ Broken Big Screen Repair -- Need Help ▫ 11-29-2006 06:41 PM - 7 replies
▫ reduce lens focal lenght? ▫ 10-31-2006 09:38 AM - 20 replies
▫ Fresnel Lenses ▫ 10-26-2006 05:39 AM - 3 replies
▫ DIY prjector maniging lens ▫ 10-03-2006 03:50 PM - 1 reply
▫ Lens Focusing Question ▫ 09-28-2006 08:39 PM - 7 replies
▫ Beseler 22" lens assembly ▫ 09-27-2006 05:44 AM - 0 replies
▫ Will these chips render this lens useless? ▫ 08-29-2006 09:15 PM - 4 replies
▫ Sanyo LNS W02Z fot sale !! ▫ 08-24-2006 12:47 PM - 0 replies
▫ Lexan Thermoclear Better than Lexan XL10 ▫ 08-14-2006 10:30 AM - 1 reply
▫ Help with Lens for PS One Projector ▫ 07-31-2006 03:29 PM - 12 replies
▫ Best well-known reflector solution for 400W Ushio and 15,4"/16:10-TFT? ▫ 07-31-2006 02:54 AM - 0 replies
▫ 450mm lens ▫ 07-18-2006 10:02 AM - 3 replies
▫ DLP Projector Lens ▫ 07-14-2006 10:47 PM - 1 reply
▫ My 18 inch lens for sale on ebay ▫ 07-10-2006 01:01 AM - 3 replies
▫ LED flashlights (LED beam angle) ▫ 06-14-2006 10:07 PM - 5 replies
▫ Microlens array for split design ▫ 06-08-2006 05:12 AM - 1 reply
▫ Thomson 46" lenticular screen ▫ 06-02-2006 11:28 PM - 0 replies
▫ Go to 400f doublet or stick to 345f triplet?, My screen is a little to big... ▫ 05-30-2006 04:42 PM - 0 replies
▫ 450mm FL long throw projection triplet ▫ 05-15-2006 04:16 PM - 3 replies
▫ Cheap 18EF Lens ▫ 05-15-2006 12:12 PM - 0 replies
▫ 200mm lens ▫ 05-12-2006 03:23 PM - 9 replies
▫ Projection Lens ▫ 05-12-2006 06:28 AM - 7 replies
▫ 300mm OHP triplet ▫ 05-10-2006 03:12 PM - 1 reply
▫ What screen material for projection? ▫ 05-08-2006 10:35 PM - 2 replies
▫ Repair the lens of PS2,XBOX ▫ 04-28-2006 10:14 AM - 1 reply
▫ Anyone tried this lens ? ▫ 04-24-2006 02:30 PM - 2 replies
▫ fresnel lens 0.5 pitch 0r 0.2 ? ▫ 04-24-2006 02:05 PM - 1 reply
▫ in need of 650mm fresnel ▫ 04-23-2006 07:21 PM - 1 reply
▫ New lens? ▫ 04-19-2006 05:49 PM - 5 replies
▫ 22 inch EFL lens on ebay ▫ 04-18-2006 06:26 AM - 0 replies
▫ large format lens image circle Help ▫ 04-16-2006 06:52 AM - 1 reply
▫ PIC Archıve ▫ 04-05-2006 09:42 AM - 1 reply
▫ New 500mm lens 100mm diameter ▫ 04-04-2006 01:29 PM - 3 replies
▫ Image flips both ways? ▫ 04-03-2006 06:52 PM - 3 replies
▫ Ir And Uv Glass From Izzotek ▫ 03-29-2006 03:51 PM - 1 reply
▫ What fresnels do I need with this? ▫ 03-18-2006 07:10 PM - 1 reply
▫ lens ▫ 03-16-2006 03:46 AM - 0 replies
▫ Long throw small image lens ▫ 03-14-2006 03:37 AM - 6 replies
▫ anti reflective question? ▫ 03-05-2006 06:55 PM - 3 replies
▫ Does anybody have the possibility of designing a (rectangular?) reflector? ▫ 03-03-2006 09:02 AM - 0 replies
▫ lens ▫ 02-25-2006 06:26 PM - 1 reply
▫ Lumenlab Versus DIYPC triplets ▫ 02-18-2006 02:40 AM - 14 replies
▫ OHP fresnel lens's FL for a 15" LCD ▫ 02-07-2006 02:49 AM - 3 replies
▫ Triplet identification ▫ 01-27-2006 12:48 PM - 1 reply
▫ Guy can you help me with that dang oslo program ▫ 01-25-2006 09:38 PM - 5 replies
▫ OHP FL Confussion ▫ 01-24-2006 10:17 PM - 4 replies
▫ distance rear fresnel to center objective split design ▫ 01-20-2006 08:26 PM - 3 replies
▫ Buhl Long Throw lense Info? ▫ 01-16-2006 02:59 AM - 22 replies
▫ triplet FL changing? ▫ 01-14-2006 05:46 PM - 3 replies
▫ Beseler Vu-lyte II Opaque Overhead Projector lens ▫ 01-10-2006 11:04 PM - 3 replies
▫ 3 Q's for my first design ▫ 01-07-2006 07:49 PM - 2 replies
▫ what difference is there using split fresnels or two toghether? ▫ 01-06-2006 05:42 AM - 3 replies
▫ simple question about my 327mm lense ▫ 01-04-2006 06:00 AM - 0 replies
▫ Issues with my 17 inches ▫ 01-03-2006 06:04 PM - 21 replies
▫ can anyone guess the specs on this lens ▫ 12-26-2005 06:50 AM - 1 reply
▫ LUMENLAB lens kit question ▫ 12-24-2005 03:08 AM - 1 reply
▫ some lens help ▫ 12-24-2005 01:42 AM - 5 replies
▫ 80mm triplet FOV ▫ 12-20-2005 01:48 AM - 7 replies
▫ My optics... are they wack? ▫ 12-12-2005 11:14 PM - 1 reply
▫ Plummer copy lens ▫ 12-11-2005 04:55 AM - 27 replies
▫ fresnel collimation efficency? ▫ 12-09-2005 05:21 PM - 0 replies
▫ Which Lens? ▫ 12-02-2005 09:19 PM - 1 reply
▫ Lens Shift ▫ 11-28-2005 01:29 PM - 0 replies
▫ this lens at all useful? 5.6/180 ▫ 11-28-2005 01:05 PM - 5 replies
▫ help with my lense ▫ 11-23-2005 05:18 PM - 2 replies
▫ Fujinon lens for sale over at the trading post! ▫ 11-20-2005 08:08 PM - 0 replies
▫ Noobie Question about projector ▫ 11-08-2005 10:23 PM - 1 reply
▫ Interest in 22" EFL w/ 5" Diameter Opaque PJ lens? ▫ 11-08-2005 06:40 AM - 86 replies
▫ Psone Projector : Couple Of Questions About Optics ▫ 11-07-2005 08:38 AM - 5 replies
▫ Using a Singlet Lens Compromise ▫ 11-04-2005 08:39 PM - 2 replies
▫ Supersharp 300mm ▫ 11-01-2005 01:47 AM - 4 replies
▫ Matching objective to Fresnel FL ▫ 10-31-2005 09:25 PM - 2 replies
▫ Converging Lens? ▫ 10-31-2005 04:25 AM - 2 replies
▫ psone with 50mm diameter objective? ▫ 10-31-2005 12:24 AM - 3 replies
▫ is this still usable? ▫ 10-27-2005 04:56 PM - 0 replies
▫ Afocal lens adapter ▫ 10-24-2005 07:00 AM - 1 reply
▫ For Sale DIY Projection Company 135 mm triplet ▫ 10-23-2005 11:12 PM - 2 replies
▫ a lens MEANT for a non DIY projector? ▫ 10-19-2005 05:26 PM - 1 reply
▫ 2 fresnels = Magnifying glass? ▫ 10-18-2005 07:57 PM - 3 replies
▫ optimization of my lilliput pj ▫ 10-15-2005 05:37 PM - 32 replies
▫ Ednalite 21 1/4" Graphic Star Large Format Lens. ▫ 10-11-2005 11:15 PM - 3 replies
▫ Process Lens ▫ 10-04-2005 11:48 AM - 0 replies
▫ eliptical reflector+150W, higher efficiency than 400W+ikea ▫ 09-30-2005 08:37 PM - 22 replies
▫ Sandwiching Fresnel vs Not? ▫ 09-28-2005 06:28 AM - 1 reply
▫ A question of focal lengths and replacement Fresnels ▫ 09-27-2005 08:56 AM - 8 replies
▫ an old ohp i purchased ▫ 09-25-2005 03:07 PM - 2 replies
▫ Cutting Fresnel to Size Changes Focal Length ? ▫ 09-25-2005 07:33 AM - 1 reply
▫ Looking for a good size Bi concave lens ▫ 09-23-2005 07:15 PM - 1 reply
▫ lumen lab triplet ▫ 09-19-2005 10:10 PM - 2 replies
▫ Conversion Lens: possible usabilty? ▫ 09-19-2005 04:12 PM - 8 replies
▫ IV/UV Hot mirror ▫ 09-17-2005 06:28 PM - 6 replies
▫ how to buy cheap varifocals/triplet? ▫ 09-16-2005 04:19 PM - 2 replies
▫ Can these lenses be used in a projector ▫ 09-10-2005 07:32 AM - 1 reply
▫ ATTN UK Projector Makers ▫ 09-04-2005 07:44 AM - 1 reply
▫ Increase Your Projected Image ▫ 08-29-2005 11:26 AM - 4 replies
▫ ANything available for 24 inch LCD ? ▫ 08-28-2005 06:15 PM - 4 replies
▫ cheaper 550mm fresnel lens from China ▫ 08-28-2005 01:44 AM - 13 replies
▫ Standard Triplet with 15 lcd Throw? ▫ 08-20-2005 06:59 PM - 4 replies
▫ Warped Fresnels ▫ 08-19-2005 01:07 PM - 0 replies
▫ DPC 80mm Triplet Focus 15 inch LCD ▫ 08-19-2005 12:46 AM - 5 replies
▫ LCD panel alignment problem ▫ 08-09-2005 04:42 PM - 1 reply
▫ Drilling into lens ▫ 08-08-2005 07:30 PM - 7 replies
▫ Lookin for a lens. plz help ▫ 08-05-2005 06:41 AM - 3 replies
▫ Ideal Triplet for 550FL Fresnel, 15" and 17" LCD ▫ 08-02-2005 03:53 AM - 47 replies
▫ Where to buy Condenser Lenses and Reflectors ▫ 07-31-2005 09:33 PM - 9 replies
▫ Need help with lens for long throw projection set up ▫ 07-27-2005 06:28 AM - 4 replies
▫ Triplet distance?? ▫ 07-21-2005 11:09 PM - 11 replies
▫ Fresnel lens supplier ▫ 07-18-2005 09:24 AM - 1 reply
▫ Do fresnels need to be sandwiched between glass? ▫ 07-17-2005 12:11 AM - 14 replies
▫ Convert a 320mm fl lens triplet to varifocal? ▫ 07-15-2005 04:44 AM - 4 replies
▫ Help out a newb :) ▫ 07-08-2005 10:26 PM - 3 replies
▫ NEC 1525S LCD, Any good? ▫ 07-08-2005 07:38 PM - 0 replies
▫ Geometric Distortion ▫ 06-30-2005 04:51 PM - 0 replies
▫ Guy Grotke please share your wisdom master ▫ 06-27-2005 03:41 AM - 5 replies
▫ Fresnel lenses, a bit of problem ▫ 06-24-2005 10:52 AM - 15 replies
▫ i need your guys help with this lens! ▫ 06-17-2005 09:19 PM - 39 replies
▫ possible source for lenses ▫ 06-16-2005 09:18 PM - 1 reply
▫ 4-1/8" dia NEC lens ▫ 06-15-2005 05:40 PM - 1 reply
▫ PLEASE guide me through my setup ▫ 06-12-2005 09:43 AM - 5 replies
▫ A Lens Misconception ▫ 06-11-2005 06:37 PM - 2 replies
▫ Help with 10.4" lcd...what lens? ▫ 06-11-2005 04:05 PM - 17 replies
▫ Can slide projector optics be used with larger LCD's? ▫ 05-29-2005 01:06 AM - 2 replies
▫ CANON Obiective lens 28-80 for Projector ▫ 05-25-2005 01:01 PM - 2 replies
▫ Moire Fresnel Lense Diamond artifacts ▫ 05-24-2005 07:44 PM - 3 replies
▫ Opaque projector optics, a few newb Qs. ▫ 05-23-2005 08:36 PM - 30 replies
▫ bah. Any tips to flatten a fresnel? ▫ 05-23-2005 10:14 AM - 4 replies
▫ Suitability? ▫ 05-23-2005 01:47 AM - 6 replies
▫ projector lcd Polarizing filter HELP PLEASE ▫ 05-22-2005 02:04 PM - 0 replies
▫ lens angle ▫ 05-20-2005 06:03 PM - 1 reply
▫ Pretty good lens?!?!?!? ▫ 05-19-2005 05:02 PM - 2 replies
▫ Hot reflector ▫ 05-18-2005 07:38 AM - 5 replies
▫ Dimentions of lumenlab stuff. ▫ 05-18-2005 05:17 AM - 3 replies
▫ crt lenses for 7"Lilliput ▫ 05-17-2005 05:17 AM - 4 replies
▫ where to buy fresnels ▫ 05-10-2005 03:44 AM - 1 reply
▫ fresnel FL for collecting light ▫ 05-09-2005 03:28 PM - 1 reply
▫ FOCAL LENGTH & stuff ▫ 05-05-2005 07:00 AM - 0 replies
▫ lens review please ▫ 05-05-2005 06:42 AM - 9 replies
▫ PROJECTION LENS question ▫ 04-29-2005 06:07 PM - 16 replies
▫ Rank Xerox Lens ▫ 04-27-2005 11:28 PM - 1 reply
▫ UV filter ▫ 04-27-2005 05:58 PM - 15 replies
▫ triplet lens ▫ 04-24-2005 08:13 PM - 4 replies
▫ Odd Size LCD - 330mm x247.65mm ▫ 04-22-2005 05:48 AM - 10 replies
▫ Focal Length ▫ 04-16-2005 07:40 AM - 4 replies
▫ Front surface mirror, what type? ▫ 04-14-2005 09:48 PM - 0 replies
▫ Surplus SLIDE PROJECTION ASSEMBLY anyone? ▫ 04-13-2005 02:23 PM - 3 replies
▫ Need help finding lenses ▫ 04-13-2005 07:41 AM - 0 replies
▫ Cutting Fresnels ▫ 04-12-2005 04:15 PM - 1 reply
▫ 135 triplet & 15" TFT ▫ 04-11-2005 05:46 PM - 46 replies
▫ Position of cone-axis ellipsiodal? ▫ 04-11-2005 04:29 PM - 20 replies
▫ Cut a Fresnel Down to Size?? ▫ 04-11-2005 04:14 PM - 3 replies
▫ 330mm FL field fresnel with 290mm FL Triplet ▫ 04-09-2005 03:41 PM - 22 replies
▫ 330mm, f=2.8; 3-element with hi-index glass ▫ 04-03-2005 04:42 PM - 2 replies
▫ 700mm focal length fresnel any good? ▫ 04-02-2005 03:39 PM - 3 replies
▫ Question on FL equation, why + 1? ▫ 03-30-2005 05:45 PM - 5 replies
▫ Help on which lenes to get ▫ 03-30-2005 04:37 AM - 1 reply
▫ Ebay Scam for Frensel's ▫ 03-29-2005 06:22 PM - 2 replies
▫ Help needed choosing lenses! ▫ 03-29-2005 11:14 AM - 7 replies
▫ guy grotke question ▫ 03-28-2005 07:42 AM - 98 replies
▫ Starting my design, questions and sanity check... ▫ 03-28-2005 03:00 AM - 3 replies
▫ Uv Filter Please Help! ▫ 03-27-2005 12:28 AM - 14 replies
▫ Where to get front surface mirror in UK? ▫ 03-26-2005 10:29 PM - 12 replies
▫ Ideal fresnel lens for 15" and 17" LCD ▫ 03-21-2005 06:27 AM - 133 replies
▫ CRT 9" LC lenses? (different focal considerations) ▫ 03-20-2005 04:46 PM - 3 replies
▫ Focus of light on first fresnel ▫ 03-19-2005 03:15 PM - 3 replies
▫ Anti Reflective Coating ▫ 03-17-2005 08:13 AM - 2 replies
▫ Eyeglass duplets: fresnel source? ▫ 03-16-2005 07:33 PM - 2 replies
▫ Focus .....lilliput ▫ 03-16-2005 05:41 PM - 1 reply
▫ ISCO OPTIC 64749 Lens ▫ 03-16-2005 06:45 AM - 0 replies
▫ Fresnel shatter ? ▫ 03-16-2005 01:16 AM - 4 replies
▫ Getting a Fresnel Lense In Denmark ▫ 03-12-2005 08:36 AM - 2 replies
▫ Copy lens or triplet ▫ 03-11-2005 12:03 AM - 20 replies
▫ Is this formula 100% true? ▫ 03-08-2005 11:04 PM - 0 replies
▫ Optics Tutorial ▫ 03-08-2005 04:54 PM - 2 replies
▫ time to try to get my feet wet<<1st post>> ▫ 03-08-2005 06:17 AM - 8 replies
▫ sell me a 320mm triplet ▫ 03-08-2005 01:34 AM - 2 replies
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