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Tag: laptop bag

Never get run over by a car again, thanks to this high-visibility LED modification for your laptop bag! Might save over one million lives per year in the world’s most crowded cities.

The issue:

In large cities, there are many perils for pedestrians: cars, bicycles, motorcycles, horses, etc.

Even the sidewalk is not a safe zone from scooters and bicycles!

At night, the problems are even worse, since pedestrians are generally un-illuminated and are frequently wearing all-black coats in the winter months.


Since many commuters carry a laptop bag, briefcase, or purse, it would be easy to put some sort of high-visibility indicator on this object: for example, an LED light (see animated designer laptop bag in Figure 1).

This would be less intrusive than wearing a high-visibility vest, and might be an easier sell to fashion-conscious commuters.


Fig. 1: Fashionable designer laptop bag with caution tape and an LED light. Possibly OSHA-approved?

Figure 2 shows the same briefcase as a still image.


Fig. 2: Thanks to this LED strip, the pedestrian holding the laptop bag is less likely to be hit by a scooter, bicycle, or car while walking on city streets.


This is clearly the next evolution in fashion: reserve your designer laptop bag now!

PROS: Should reduce pedestrian fatalities and the city’s overall fashion rating at the same time.

CONS: May make your coworkers jealous and cause them them to plot against you.

Never forget your laptop at home (or at work!) again! The ultimate briefcase / laptop bag for the sophisticated and discerning professional!


At many companies, employees take a laptop to/from work every day.

In the past, laptops were heavy enough that it would be incredibly obvious whether a laptop was in a bag or not.

The issue:

Modern laptops are light enough that it is possible to take a laptop bag (Figure 1) to work without realizing that there is no laptop inside. This can be an annoying and time-consuming mistake.


Fig. 1: The briefcase shown here could easily weigh 5 pounds without a laptop inside, so it may not be immediately obvious whether or not a one-pound laptop is present inside or not.


Proposed here is a laptop bag that makes it unavoidably obvious that there is no laptop inside. The model shown in Figure 2 pops up a spring-powered flag whenever a laptop is not present.


Fig. 2: The high-visibility “Pack your laptop!” reminder flag (A) at left protrudes from the bag when the laptop compartment is empty. A proposed mechanism is shown at right: the flag is attached to a “laptop cradle'” (B) that is supported by several springs (C). When the laptop is placed in the bag, its weight compresses the springs and pushes down the cradle-and-flag mechanism.

The flag-based approach described above makes it incredibly obvious if a laptop is not present. It also has the advantage of being easily overridden by a user who is intentionally not packing their laptop: they can simply press down on the flag while zipping the bag’s laptop compartment.

Rejected simpler Idea:

One could imagine a laptop bag with a transparent panel that would allow visual confirmation of the presence/absence of a laptop. Although this would work (and requires no moving parts), it would still be easy to grab the bag in a rush without realizing that the laptop was missing. Additionally, it has the disadvantage of advertising the presence of a (highly-stealable) laptop to fellow commuters.

Tactile alternative to the “flag” idea:

For a briefcase, the handle could change texture when the laptop is present. For example, dozens of metal spikes could protrude from the handle until a laptop weighed down the laptop cradle, at which point the spikes would retract into the handle, like they were part of some kind of Indiana-Jones-style ancient temple trap. (This could be all done mechanically, with no need for electronics, using cables that connected the handle to the laptop cradle.)


You should crowdfund a laptop bag like this right now! If you are successful, it will prove that a market exists, and hundreds of much-cheaper knockoffs will flood the market before your initial prototypes are even done!

PROS: Never forget your laptop again!

CONS: Any object that is similar in shape to a notebook computer (e.g. an actual notebook) would cause false positives.