Smrtonosna priča o nastanku ručnih satova

[tiha]

Monster je ok, barem za sada:
"Lumibrite is a luminous paint used on some models of Seiko watches. It has also been used in some models of Citizen, Lorus, and Pulsar watches.
This is a new kind of Luminescent paint that glows brighter for longer than the previous generation of luminescent paints, and is environmentally friendly (non radioactive)." (preuzeto sa wikipedije)

[23jewels]

Fortis je sve do početka 2000-ih godina koristio tricijum, prepoznaćemo ga po "T" oznaci ispred i iza "sviss made", ali moj Fortis nikada nije svetleo celu noć istim intenzitetom, sta vise "punio se" na svetlosti.

[23jewels]

Namerno sam odvojio postove, jer je ovaj off...

kada vec navodimo primere iz skorije istorije koji su imali negativan uticaj na ljudsko zdravlje, i čovečiju okoliknu, napominjem samo da kod nas u Srb postoje i dalje sredine u kojima su azbestne cevi i dalje u upotrebi u gradskom vodovodu...

Na zapadu radnici koji vrse uklanjanje azbesta nose opremu skoro kao Baumgartner, dok kod nas pojemo vodu koja tece kroz te cevi.

[vlajo]

Off
Još uvek je u upotrebi "terwall" vuna, navodno ova nova verzija te staklene vune takođe nije kancerogena. Zna li neko nešto o tome?

Inače nađoh i ovo na WUS

Originally Posted by Ikuo Tokunaga
About the luminous paints of Seiko watches, "Radioactive luminous paint" which uses a radioactive material was abolished five years ago in all watches including the diver's watches. We had switched to non-radioactive "Photo-luminescent paint" with high safety extensively.

The "Radioactive luminous paint" which was being used in Seiko watches before was not "Tritium" but "Promethium = 147Pm". Since the quantity of the radioactive material which can be used for one watch is restricted and radiation energy decreases, in the case of the watch used around 10 years, energy will become weak and luminous paint will not shine.

The "Photo-luminescent paint" of Seiko watches is called "LUMIBRITE" (trademark), and is made of SrAl2O4 + Eu + Dy. We can use it without any restriction, excluding the above dangerous radioactive materials at all, and it can continue shining several hours and the most important feature of this luminous paint is safety for the users. Although the old photo-luminescent paint disappeared for a short time, in case of "LUMIBRITE", when it shifts to darkness from a general living environment (conditions which light hits for 10 minutes in the illumination of about 500 lx), it will shine for about 3 to 5 hours by after glow of light in case of general grade "LUMIBRITE", and in case of the highly efficient "LUMIBRITE" used for diver's watches and adventure watches etc., it will shine for about 5 to 8 hours in darkness. If even light has hit, long periods of use can be performed repeatedly any number of times, and there is little degradation in this paint, therefore "LUMIBRITE" is an excellent luminous paint for watches. (See the following figure).


Comparison of the luminous paints:




SEIKO Professional 1000m:




Ikuo Tokunaga

Attached Images

[mistrall]

OffJoš uvek je u upotrebi "terwall" vuna, navodno ova nova verzija te staklene vune takođe nije kancerogena. Zna li neko nešto o tome?

Terwall je kamena vuna. A za staklenu su isle price da je kancerogena sto kako stvari stoje nema veze sa istinom. Npr. u engleskoj se koristi staklena vuna kao primarni izolacioni materijal u sendvič zidovima i najrasprostranjenija je tamo (kao kod nas demit fasade - stiropor). Problem sa staklenom vunom je njena ugradnja kada se dize oblak staklene prasine koji iritira disajne organe, oci, kozu itd. zato naseg majstora kad pitas za taj materijal on odbija da radi i preporuci nesto drugo uz izgovor da je ona kancerogena. Inace je staklena po svim parametrima bolji izolator od kamene vune. "Kod nas" se proizvodi negde u Makedoniji.

Inače nađoh i ovo na WUS

Znaci za seiko satove proizvedenih zadnjih 5 godina ne treba da brinemo. Sad sledi logicno pitanje, sta je sa ostalim proizvodjacima mozda treba napraviti crnu listu ili neki test sa gajgerovim brojačem ako ga neko ima