Driver and light quantity adjusting device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Apr 29, 2004
app pub date -
Oct 16, 2003
filing date -
Oct 21, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed is a device for adjusting a quantity of light, including a rotor adapted to be rotated with an axis portion as a center, a first bearing for supporting one end of the axis portion of the rotor, a second bearing for supporting the other end of the axis portion of the rotor, and a member for adjusting a quantity of light which moves in accordance with a rotation of the rotor. According to this construction, a portion of the first bearing into which the axis portion is fitted has a tapered shape, and the axis portion is brought into contact with the portion having the tapered shape of the first bearing, whereby the accuracy of determining a position at which the rotor stops is improved.
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