Horizontal Art Projectors
Horizontal art projectors are used exclusively for enlarging images onto a wall, canvas, and other vertical surfaces. They are most popular with home decorators, muralists, and fine artists. Horizontal projectors will save countless hours over the typical grid or measuring methods. The best horizontal projectors incorporate multi-element lenses, halogen or high output incandescent lighting. Available in compact tabletop models.
To create reduction without a special lens, simply remove the lens from the projector and extend it away from the projector with either a homemade tube or mount it on a book or raised surface in front of the lens cone or opening. If you are using a top-loading projector raise the copy area with a box.
- By moving the lens barrel nearer or farther away from the opening varying levels of copy reduction can be achieved. To control light scatter, roll a cardboard tube around the lens and use that to bridge the distance from the lens to projector.
- Another way to reduce is to raise the copy above the normal copy area. Build a cardboard box the same size as original copy area and mount over copy opening. By mounting your copy at this new higher level, you will create a reduced image. Size of image will vary with height of box. By combining this technique with #1 above will allow greater reduction.
To project small 3-D objects, mount object onto top copy area, then cover copy area and object with box (to prevent light spill). Focus as usual. Some bottom loading projectors can project small 3-D objects simply by setting the projector onto the object.
Image size is achieved by moving the projector closer or farther away from desired surface. To ease sizing when projecting onto a wall, mount projector onto rolling cart or use Artograph’s Projector Floor Stand.
If using certain size images frequently, mark floor with yellow tape. Position tape at desired distances and mark image size i.e. 10x simply move cart to tape mark to attain size.
Always ensure that projector is perpendicular to image plane to prevent key stoning. Project grid onto wall or vertical surface and measure each corner square for like size and shape.
Vertical Art Projectors
Vertical art projectors attach or mount over a drawing table or horizontal surface and allow the artist to both enlarge and reduce. This type of projector is very popular and ideally suited for the graphic artist/designer and illustrator, and is available in several styles and prices. Projection range varies with projectors. There are also versatile units, which will project both vertically as well as horizontally. (Designer™*, DesignMaster®, DesignMaster® II**, Prism™* and Super Prism®*)
*Optional Vertical Stand required
Always have extra bulbs on hand for an emergency.
Never mount rare photos or artwork. If you are enlarging, the copy board is closer to the bulbs and the heat. Your best bet is to have the photo or artwork copied, and then use the copy in the projector.
Never block or cover up vent holes. The cooling mechanism is carefully balanced with the heat output.
To determine a particular scale of a projected image, mount a 6″ ruler next to copy or draw 1″ grid lines onto the copy board itself.
Keep lens and mirror clean for best image. Treat and clean the special front surface mirror with same care as lens surface. Clean the lens more frequently in dusty or smoky environments. Always apply cleaning solution to cleaning cloth, never directly to lens or mirror.
Make sure the projected image is square to tabletop. Mount a grid with 1/2 or 1″ squares onto the copy board and project at maximum enlargement to tabletop surface. Measure projected squares in each corner to ensure they are of the same size and shape.