Window structure of an indicator unit

Details Window structure of an indicator unit Window structure of an indicator unit

1998-05-20

1999-06-29

Phan, James

Optical: systems and elements

Scale or indicia reading

Mirror

359440, 359894, G02B 1706

Patent

active

059176512

ABSTRACT:
A reflecting surface is formed at a rear side of a thick portion so that when viewed from the center front relative to the thick portion, light is reflected by the reflecting surface to let the color of the panel be seen as the color of the thick portion. With this, the confusing visual aspect of the window member of the indicator unit that occurs when the color of the thick portion of the window member looks different from the color of the other portion of the window member can be eliminated without having to color the rear surface side of the thick portion.

REFERENCES:
patent: 3650599 (1972-03-01), Pedersen
patent: 3747413 (1973-07-01), Barrett et al.

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