Number plate including luminous characters

Details Number plate including luminous characters Number plate including luminous characters

1989-04-14

1991-04-16

Ostrager, Allen M.

Illumination

Sound equipment illuminator

362333, B60Q 156

Patent

active

050087835

ABSTRACT:
A vehicular number plate including luminous characters of the type comprising a number plate having a plurality of chracter portions punched therefrom to which a plate molded of a transparent or translucent synthetic resin is adhesively secured and illuminating bulbs for illuminating the character portions, wherein a light scattering plate having a number of quadrangular pyramid-shaped light scattering projections formed thereon is interposed between the number plate and the illuminating bulbs in an area corresponding to positions where the illuminating bulbs are disposed. Each of the quadrangular pyramid-shaped projections has an apex angle which is determined in the range of 90.degree. to 160.degree.. The illuminating bulbs may be replaced with a single fluorescent lamp. In this case, the light scatteering plate includes a receiving portion in which the fluorescent lamp is received and a light scattering portion extending from the receiving portion while having a gradually reduced thickness. The light scattering plate is interposed between the number plate and the fluorescent lamp. To scatter the incoming light, the light scattering poriton is formed with a number of light scattering grooves extending in parallel with the fluorescent lamp.

REFERENCES:
patent: 1194294 (1916-08-01), Johanson
patent: 1970080 (1934-08-01), Edgerton
patent: 2057249 (1934-07-01), Rioux
patent: 2131962 (1936-10-01), McAlpin
patent: 3223833 (1965-12-01), Protzmann
patent: 4811507 (1989-03-01), Blanchet
Modern Plastics, Henry Pearson, Piping Light with acrylic material 8/46.

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