| Co-Investigator(Kenkyū-buntansha) |
KAWAMURA Tsutomu Nippon Electric Glass Co., Ltd., Technical Division, General Manager, 技術部, 部長
FUJINO Tatsushi Akashi College of Technology, Department of Electrical Engineering, Assist.Prof., 電気工学科, 助教授 (80099829)
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| Budget Amount *help |
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1989: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1988: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Research Abstract |
Recently, glass blocks are often used for part of the building wall, and have good effect on lighting and decoration.
The glass block is originally clear and hollow. If only we set a pair of electrodes and pack proper gases in it, can turn it a discharge tube easily. We have packed Hg and Ne gases in it to make it a multicolored discharge tube and have tried to develop multicolored discharge display serving for a lighting wall.
We worked together and carried out the study especially about next three points, that is, (1) design and manufacture of glass blocks, (2) development and trial manufacture of lighting circuits, (3) formation of the display panel.
The report for results describes about the above points and its summary is following. (1) We have formed a display panel with 5x 7 dots by 35 glass blocks and could express the alphabet, Arabic numeral, katakana and symbols in two colors, red and blue. (2) The negative glow in the panel with blocks shaping Z was covered by the anode of the next dot perfectly. (3) The negative glow in the square block could be covered too by the blind in front of the cathode. In result, the panel can express to both sides, inside and outside. (4) The luminous color is considerably vivid. That is, the red is (x=0.5, y=0.33) and the blue is (x=0.22, Y=0.24). (5) The brightness is a little over one hundred nt, but it is not enough. We must study more the structure of electrodes to obtain the brightness of hundreds nt. (6) The luminescent efficiency is very low about 0.6 lm/W. We must improved this hereafter.
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