Spot lightbulbs for Ceiling

what about something like some LED tape or such on the floor instead, you can create you circle and it will light up. If you need "top" light it might be better to do a bit of soft focus so it is "almost" there.

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I'll be controlling the lighting programmatically via software, so I'm thinking the gobo solution would be the most straightforward because I can just have the program calculate which gobo will provide the most circular appearance for a given location, and use that one.

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I'm thinking I can go gobo-less when the light is pointing nearly straight down, then use a gobo to help correct the shape of the beam a bit when it's at more of an angle. It wouldn't be a perfect circle but it would be better than no gobo.

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If you have your unit, and your distance and angle companies will do the maths and make the gobo work for you. But depending on how many you need it might be a bit much!

A custom gobo would be the easiest way to do it, but it will only produce a perfect circle from the position you nominate the angle and distance when getting the gobo made.

If you must have an absolutely perfect circle, and you have no option but to have the source off the perpendicular, perhaps you'll need to have a gobo made which is in the form of an ellipse, with sufficient correction on the shape such that it shows as a perfect circle when it hits the ground. How's your trigonometry? http://www.blue-room.org.uk/public/style_emoticons/default/wink.gif

Yeah that would make sense, but ideally the light could be moved to any location in the space rather than to one in a discrete set of a locations.

Wall Spotlight

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I want to use a movable spotlight to illuminate a circle somewhere on the ground in a large space. The problem is that unless the spotlight is pointing straight down, it will not show on the ground as a perfect circle, but rather an elongated ellipse.

How many of these positions have you got to light? Perhaps a profile mounted above each location would be simpler? Unless you have a mover sat around and no profiles this would be easier to program too.

How many of these positions have you got to light? Perhaps a profile mounted above each location would be simpler? Unless you have a mover sat around and no profiles this would be easier to program too.

Any suggestions for how to fix or mitigate this so that the light appears as circular on the ground as possible? I suppose I could move the spotlight as high as possible, or use several spotlights placed evenly around the space and then use whichever is closest to the desired location. Just wondering if there is a simpler solution that I'm overlooking (perhaps a special kind of light).

Our love of history (yes, we dug out our BA, Art History degree for this) collided with our love of mahjong. We scoured the art historical record over the last 250 years and discovered the breadth and variety of tile art was bigger and even more fabulous than we ever understood. We took our creative liberties (of course) but used history and art as our guide. For the first time ever, we introduced seasons in this set, so multiple variations of play can be achieved (American, Chinese, and Hong Kong we SEE you).  Not to be dismissed, we also offer the Riichi and Singaporean extra tiles so you can learn and play these variations of the game. This is one set that can play the most popular mahjong variations in the world. We double dog dare you to learn more than one way to play. Brain meet mahj.

Spot Lightfor house

I was also thinking I could use multiple gobos rather than just one, as I mentioned above. Basically there could be gobos for several angles, and the gobo is chosen that is closest to the desired angle.

Just to provide some context, it's an indoor golfing setup in which the light shows you where to place your ball (I know this sounds bizarre). When you walk over to the light and place your ball in the center, it can turn off. The space will be fairly large, so without correction, if a light needs to point somewhere in the far corner, it will look a little ridiculous. It won't be perfect but there won't be spectators viewing this from above, either.

How many of these positions have you got to light? Perhaps a profile mounted above each location would be simpler? Unless you have a mover sat around and no profiles this would be easier to program too.

The purpose of the light is to direct people where to walk. Once they get to the beam on the ground, it can turn off, move to the next spot, and then turn back on, etc. In other words, the lights won't be moving while on.