Bauhaus-Universität Weimar

Titel:
Optic Projection: Principles, Installation and Use of the Magic Lantern, Projection Microscope, Reflecting Lantern, Moving Picture Machine
Person:
Gage, Henry Simon and Henry Phelps Gage
PURL:
https://digitalesammlungen.uni-weimar.de/viewer/image/lit39438/479/
47* 
DO AND DO NOT WITH ROOMS AN D SCREEN’S [Ch. XII 
§ 642. Summary at Chapter XII : 
Do 
1. Use a room property 
equipped for projection if good 
results are expected <§ 602). 
2. Use light-absorbing tints 
for tinting and decorating the 
projection room !§ 604). 
3. Make all paints dull or 
flat, never shiny, for a projec¬ 
tion room. 
4. Light the projection room 
sufficiently, so that the specta¬ 
tors can find their seats without 
trouble (§ 605). 
5. A perfectly darkened room 
is only necessary for special 
projection (§ 608). 
0. Lamps for general lighting 
should be shaded or so arranged 
that their light cannot shine 
directly in the eyes of the spec¬ 
tators or upon the image screen 
t§ Ooöh 
7. Have red lights near all 
exits t§ 607). 
8. Take the necessary pre¬ 
cautions to prevent light enter¬ 
ing the rxxmi at the edges of the 
window shades (§ 611). 
Do Not 
1. Do not expect good pro¬ 
jection in a room not equipped 
for it. 
2. Do not use light-reflecting 
colors like yellow, white, light 
red or green for decorating 
the projection room; but the 
dark. rich, light-absorbing col¬ 
ors. dark red, brown, etc. 
3. Do not use paint that gives 
a shiny or enamel surface, for 
this will produce a glare by the 
reflections. Use flat paint. 
4. Do not have the projection 
room darker than necessary. 
5. Do not attempt the most 
difficult projection unless the 
room can be made perfectly 
black. 
6. Do not use unshaded 
lamps for the general lighting. 
Light shining directly in the 
eyes of the spectators is very 
distressing. 
7. Do not fail to have red 
lights by the exits. 
8. Do not leave the window 
shades without protection at the 
margins.
        

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