Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Stencils for Visio RF & EE Shapes for Word Advertising RF Cafe Homepage Sudoku puzzles Thank you for visiting RF Cafe!
Exodus Advanced Communications

Smellevision Now Here!
June 1951 Radio-Electronics Article

June 1951 Radio-Electronics

June 1951 Radio-Electronics Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio-Electronics, published 1930-1988. All copyrights hereby acknowledged.

We all know that for the most part television stinks. Back in 1951 when this article appeared in Radio-Electronics magazine, the technology was very new and it was considered a miracle not to be wasted on inane programming. Newscasts actually presented news and not opinion, movies and sitcoms cast the nuclear family, law enforcement, the military, religion, and patriotism in a positive light rather than as the purveyors of evil in the world. By the end of the 1960s to early 1970s a lot of that had changed. Political and social agendas weaseled their way into nearly all programming to the extent that terms like "boob tube" and even, yes, "smellivision," became common monikers for television. The form of smellivision presented in this article was granted patent (US2540144A) protection in 1951 under the title, "Television with scent effects." It did not claim to transmit actual scents, but rather a series of signals that triggered the release of certain scents at the receiver end which were blown into the viewer area. A conspicuous absence of such a system in today's world of technology is evidence of the concept's lack of practicality. Scratch-and-sniff TV screens didn't fare too well, either.

Smellevision Now Here!

Smellivision receiver - RF Cafe

Fig. 2 - Smellivision receiver.

Smellivision transmitter - RF Cafe

Fig. 1 - Smellivision transmitter.

Inventors have sought at different times and in various ways to add the illusion of scent to the arts of the theater. Scents actually have been released among the audience in experimentally produced plays, with some success, but apparently never enough to make scent effects a regular part of the theater. Patents have even been taken out for scent devices for use with motion pictures.

It remained to New York inventor Emery I. Stern to add scent effects to television. The idea no doubt was suggested by friends' remarks about some of the current programs. The theory of his invention is simple. As shown in Fig. 1, an oscillator supplies a lamp with current modulated at a frequency controlled by the switches connected to the oscillator. The lamp throws a beam on a corner of the iconoscope, making a modulated pattern there which is presented in the same corner of the receiving kinescope. It is a comparatively simple matter to detect the signal with a photocell (Fig. 2) and use each frequency to trip its own relay, releasing the appropriate odor into the blower system, which appears quite adequate to spread the smell through the average living room. The scents of course are kept under pressure so that as soon as each valve is opened by its relay the odor will gush out into the blower tube.

More elaborate methods for diffusing the scents would be used in auditoriums. The heating or cooling system of the auditorium might be used to cause air currents of the correct temperature and speed. The appropriate scent mixture would then be added to the air as it enters the room. It would also be very important that the scent be mixed with the air in the proper proportions, so that it is strong enough for all in the auditorium to smell it, yet not too strong to spoil the desired effect.

How many of the containers will be necessary and what scents are considered the most useful on a television program are matters not mentioned in the patent, which is No. 2,540,144.

 

 

Posted May 25, 2020

RF Cascade Workbook 2018 by RF Cafe ConductRF Precision RF Test Cables - RF Cafe
Exodus Advanced Communications - RF Cafe Berkeley Nucleonics Academy - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com

spacer

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free