OPTI houses a fully equiped Mac graphic studio, Class 100 clean rooms, photographic dark room, plus silkscreen printing, as well as chrome, aluminium and dichroic etching facilities. Below are the main types of glass gobo that are typically produced. These range from black and white through to full colour.
1. Black and White
We recommend black and white gobos for maximum impact in high ambient light conditions, cost effectiveness, and rapid delivery. Chrome or Aluminium coated glass is chemically etched off using a photographic process as a mask. This creates high resolution black and white half tone or line images with outstanding definition.
2. Black & White + Colour Filter
The easiest way to achieve a coloured gobo is to simply add one of our range of 8 dichroic colours, shown on next page, behind a black and white gobo. Other colours are available to special order.
3. 1 Colour
For images that require a clear white design against a colour background or a single colour out of white. Choose from one of our range of 8 standard dichroic colours, shown on next page. Other colours are available to special order. Includes a circular border glass to edge the image neatly.
4. Black & White + 1 Colour
To create black, white and single colour projected images chrome or aluminium etched gobos are combined with an etched dichroic filter from our range of 8 colours, shown on next page. Other colours are available to special order.
5. Black & White + 2/3 Colours
To create black, white and two or three colour projected images chrome or aluminium etched gobos can be combined with an etched dichroic filter from our range of 8 colours, shown on next page, plus an etched dichroic process colour (cyan, yellow or magenta). The third colour is secondary, created from the combination of the selected colours. Other colours are available to special order.
6. Full Colour
OPTI utilise the Beacon etched 4 colour dichroic process. These gobos are made
from a thin sandwich of dichroic cyan, yellow, magenta and chrome or aluminium
(black) coated glasses. The thinness of the glasses allows the image to be
accurately focussed whilst the dichroic colours ensure durability over long periods
of use.
Full colour gobos are actually four colour. Images are made up from a series of
fine dots, similar to lithographic printing.