Luminous dial plate structure for watches

Details Luminous dial plate structure for watches Luminous dial plate structure for watches

1994-07-26

1995-06-20

Miska, Vit W.

Horology: time measuring systems or devices

Displays or display device details

With luminous material

368232, G04B 1932, G04B 1906

Patent

active

054266211

ABSTRACT:
Provided is a luminous dial plate structure for watches, relatively high in luminance, sufficiently long in visual time and abundant in ornamental effect. The dial plate structure is composed of a lower plate and an upper member. The lower plate is made of a metal such as brass. The upper surface of the lower plate is coated with a phosphorescence-maintaining luminous agent made of a rare-earth element metal oxide. The surface of phosphorescence-maintaining luminous agent is coated with clear lacquer serving as a sealing material. The upper member is made of a thin transparent or translucent material, on which a time indication scale is provided. The upper member is bonded through an adhesive onto the upper surface of clear lacquer. In a bright place the dial plate shows such an indication that the time indication scale on the upper member is directly seen, while in a dark place the phosphorescence-maintaining luminous agent illuminates the upper member from the back to make the time indication scale visually observed as black shadows.

REFERENCES:
patent: 3436242 (1969-04-01), Schaffner
patent: 4285055 (1981-08-01), Takami et al.
patent: 4775964 (1988-10-01), Alessio et al.
patent: 5086418 (1992-02-01), Marcus
patent: 5346718 (1994-09-01), Thorgersen et al.

Affiliated with

Also associated with

Rating

Luminous dial plate structure for watches does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Luminous dial plate structure for watches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Luminous dial plate structure for watches will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1849369