VIEW ANY TV as 3DTV! Pulfrich Television 3D Stereo Glasses Nuoptix 3D Technology

Description

VIEW ANY TV as 3DTV!  Pulfrich Television 3D Stereo Glasses Nuoptix 3D Technology
__________________________________________________
This listing is for one pair of Pulfrich 3D Glasses originally sold by 3D Dreams in the 1980s, and an instruction sheet /
history of the Pulfrich effect. The effect is expecially good on todays flat screen TVs with a refresh rate of greater than
60 mghz where left to right panning is used in production.
The Pulfrich Effect:
The effect is generally induced by placing a dark filter over one eye but can also occur spontaneously in several eye
diseases such as cataract, optic neuritis, or multiple sclerosis.  In such cases, symptoms such as difficulties judging
the paths of oncoming cars have been reported. The phenomenon is named for German physicist Carl Pulfrich, who
first described it in 1922. The effect has been exploited as the basis for some television, film, and game 3D
presentations.
IN FACT... virtually all TV shows have panning from Left to Right which will give this same 3D effect that Pulfrich
described. These Pulfrich glasses will enable you to take advantage of this effect and see the 3D.
Use of the Pulfrich Effect in Stereoscopy:
The Pulfrich effect has been utilized to enable a type of stereoscopy, or 3-D visual effect, in visual media such as film
and TV. As in other kinds of stereoscopy, glasses are used to create the illusion of a three-dimensional image. By
placing a neutral filter (e.g., the darkened lens from a pair of sunglasses) over one eye, an image, as it moves right to
left (or left to right, but not up and down) will appear to move in depth, either toward or away from the viewer.
Because the Pulfrich effect depends on motion in a particular direction to instigate the illusion of depth, it is not useful
as a general stereoscopic technique. For example, it cannot be used to show a stationary object apparently extending
into or out of the screen; similarly, objects moving vertically will not be seen as moving in depth. Incidental movement
of objects will create spurious artifacts, and these incidental effects will be seen as artificial depth not related to actual
depth in the scene. Unfortunately, many of the applications of Pulfrich involve deliberately causing just this sort of
effect and this has given the technique a bad reputation. When the only movement is lateral movement of the camera
then the effect is as real as any other form of stereoscopy, but this seldom happens except in highly contrived
situations. It can, however, be effective as a novelty effect in contrived visual scenarios. One advantage of material
produced to take advantage of the Pulfrich effect is that it is fully backward-compatible with "regular" viewing; unlike
stereoscopic (two-image) video, a 3D Pulfrich effect only has one image and as a result does not produce the
ghosting effect for those not wearing glasses or the color distortion of technologies such as anaglyph.
The effect achieved a small degree of popularity in television in the late 1980s and 1990s. On Sunday, January 22,
1989 the Super Bowl XXIII halftime show and a specially produced commercial for Diet Coke were telecast using this
effect. In the commercial, objects moving in one direction appeared to be nearer to the viewer (actually in front of the
television screen) and when moving in the other direction, appeared to be farther from the viewer (behind the
television screen). Forty million pairs of paper-framed 3D viewing "glasses" were distributed by Coca-Cola USA for
the event (though they were originally produced and intended for a May 1988 3D episode of Moonlighting (TV series)
that never finished production due to a writer's strike). The right eye's filter was a rather dark neutral gray while the left
was transparent. The commercial was in this case restricted to objects (such as refrigerators and skateboarders)
moving down a steep hill from left to right across the screen, a directional dependency determined by which eye was
covered by the darker filter. The commercial was said to be created using Nuoptix 3D technology to create the
Pulfrich effect.
More Examples of the Pulfrich Effect:
The effect was also used well throughout the whole 1993 Doctor Who charity special Dimensions in Time and in
dream sequences of the 1997 3rd Rock from the Sun two-part season 2 finale Nightmare on Dick Street. In many
countries in Europe, a series of short 3D films, produced in the Netherlands, were shown on television. Glasses were
sold at a chain of petrol stations. These short films were mainly travelogues of Dutch localities. A Power Rangers
Lightspeed Rescue movie called Power Rangers in 3D: Triple Force (later broadcast as two-part Trakeena's
Revenge) sold on VHS through McDonald's purportedly used "Circlescan 4D" technology, which is based on the
Pulfrich effect, but there was very little 3D present. In the United States and Canada, six million 3D Pulfrich glasses
were distributed to viewers for an episode of Discovery Channel's Shark Week in 2000.  Animated programs that
employed the Pulfrich effect in specific segments of its programs include Yo Yogi!, The Bots Master, and Space
Strikers; they typically achieved the effect through the use of constantly moving background and foreground layers.
The videogame Orb-3D for the Nintendo Entertainment System used the effect (by having the player's ship always
moving) and came packed with a pair of glasses. So did Jim Power: The Lost Dimension in 3-D for the Super NES,
using constantly scrolling backgrounds to cause the effect. Also on the first day of Super Mario 64's release, Toys R
US offered glasses to view Super Mario 64 through. There were only 2 2D compatible technologies which use clear
lenses, Chromodepth and Pulfrich. Since Chromodepth would make Mario, a Red-and-Blue clad character look funny,
and most walking scenes were filmed with Mario in the foreground slightly left of center, the left having the
perpendicular to the long horizon, and the right line of sight extending into the horizon, Pulfrich glasses were assumed
to be the type included in the Toys R Us pack.
About Carl Pulfrich from Wikipedia:
Carl Pulfrich was employed to develop stereoscopy from being pure entertainment to a powerful quantitative
technique. His apparatus to measure distances stereoscopically was first presented in Munich in 1899. This was
further developed to a stereo-comparator which was presented in Hamburg in 1901. Stereoscopy was used for
topographic geography, astronomy studies and the Marine because everything could be done quick and with a high
degree of precision. Pulfrich pioneered the use of stereoscopy from planes for topographic purposes.
Carl Pulfrich had realized that people in whom visual function differed between both eyes perceived the stereo-effect.
PLEASE CHECK OUT MY OTHER LISTINGS FOR MORE 3D STEREO VIEWERS, VIEWS, and CAMERAS
Copyright © 2016-2021 TDM Inc. The photos and text in this listing are copyrighted. I spend lots of time
writing up my descriptions and despise it when un-original losers cut and paste my descriptions in as their own. It is against ebay policy and if you are caught, you will be reported to ebay and could be sued for copyright infringement and damages.