Mitsubishi Denki Kabushiki Kaisha

Shigeki Kariya

Hiroshi Matsuoka

Toshiro Tsukahara

Katsumi Kurita

Tomoaki Ide

Kazuo Chimura

A coloring device for use, for example, in a color image display device, includes a rotary filter rotated by a motor and includes color filter sections of the three colors which pass over the screen of a monochromatic display device in a predetermined sequence as the rotary filter rotates. The coloring device may include two or more sets of color filter sections to enable reduction of the speed of rotation. For size reduction, a member to be detected, used for detection of the rotation of the rotary filter, may be provided on the rotor of the drive motor, or the filter assembly having the rotary filter may be directly mounted to the rotor of the motor. The rotary filter may be in the form of a disk or a cone. In the latter case, it is advantageous that the color filter sections are formed of a transparent base provided with filter sheets attached thereto or coatings having a transparency only to light of the respective color.

Coloring device with rotary filter and detection sensor mounted on the

A rotating apparatus for rotating an object utilizes a worm gear in which worm wheel torque supplied from a rotation table can be transferred to a worm gear. In this way the invention avoids a conventional disengaging mechanism that disengages the rotating apparatus when torque is supplied from the rotation table. Further, spring members and stoppers physically define a first and second rotation ranges and a split cam shuts off a drive motor within the first rotation range. Still further, an anti-backlash member is provided on the worm gearing. To prevent pinched fingers and dust accumulation, a skirt is preferably provided on the bottom, front edge of the object being rotated which closes a gap between the object and a support surface when the object is placed on the rotating apparatus.

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Nagaokakyo, Japan

Shigeki Kariya