VICINITY ILLUMINATION DEVICE

PURPOSE:To unify the brightness on a desk and prevent the occurrence of the shade of a writing tool and the shade of hands by illuminating an object such as a document on the desk with the indirect light reflected from a black or gray reflecting plate. CONSTITUTION:A vicinity illumination device is...

Full description

Saved in:
Bibliographic Details
Main Author FUJITA SHIGEAKI
Format Patent
LanguageEnglish
Published 05.03.1992
Subjects
BLASTING
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-PORTABLE LIGHTING DEVICES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
SYSTEMS THEREOF
VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To unify the brightness on a desk and prevent the occurrence of the shade of a writing tool and the shade of hands by illuminating an object such as a document on the desk with the indirect light reflected from a black or gray reflecting plate. CONSTITUTION:A vicinity illumination device is constituted of a light source 1 and a reflecting plate 2. A general lamp including a high-intensity lamp can be used for the light source 1, and a point light source such as an incandescent lamp and a halogen lamp or a linear light source such as a straight tube FL40W fluorescent lamp may be used. An umbrella-shaped reflecting plate 3 may be used, and the direct light and the reflected light by the reflecting plate 3 are all radiated toward the reflecting plate 2. The reflecting plate 2 reflects the light of the light source 1 and illuminates the upper face 4 of a desk as the indirect light, and it has the diffusion reflection feature with a low mirror reflection coefficient and the low-brightness low-intensity color of black or gray near black.
Bibliography:Application Number: JP19900183180