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US 5,479,201 AGranted
Optical beam scanner with circuit board mounted elements
AssigneeCanon Kabushiki Kaisha
InventorsYoshinori Sugiura, Ryosuke Kaku, Shin Mogi, Jun Azuma
Life of this patent
Estimating the term…
Abstract
An optical scanning apparatus has a light source unit, a first circuit board provided with the light source unit, a deflector for deflecting light beam from the light source unit, and a second circuit board provided with the deflector. The first circuit board and the second circuit board are connected electrically in such a manner that the positions thereof can be adjusted mechanically. Hence the optical beam scanner is made compact to obtain a sufficient bending strength and precision for an enhanced system reliability.
Claims44
An optical scanning apparatus comprising:
- a light source unit;
- a first circuit board provided with said light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a second circuit board provided with said deflector, including means for mechanically connecting said first and second circuit boards, and further including means for adjusting the positions of said first and second circuit boards with respect to one another;
- and
- means for electrically connecting said first and second circuit boards through a flexible board.
3 more elements
An optical scanning apparatus comprising:
- a light source unit;
- a light source unit driving circuit for driving said light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a deflector driving circuit for driving said deflector;
- and
- a single circuit board on which said light source unit driving circuit and said deflector driving circuit are each mounted in a predetermined relationship.
3 more elements
An optical scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting light beam from said light source unit;
- optical means for guiding the light beam deflected by said deflector in a predetermined direction, with said optical means and said light source unit each being installed in a predetermined relationship on a single circuit board of said light source unit;
- and
- light receiving means, for receiving the beam guided in said predetermined direction by said optical means.
2 more elements
A method for installing circuit boards on an optical scanning apparatus, said method comprising:
- a step for mechanically mounting a light source unit on a light source driving circuit board;
- a step for mechanically mounting a deflector, for deflecting light beam from said light source unit, on a deflector driving circuit board;
- a step for electrically connecting said light source driving circuit board and said deflector driving circuit board through a flexible board;
- a step for mechanically connecting said light source driving circuit board and said deflector driving circuit board;
- and
- a step for mechanically adjusting the position of said light source driving circuit board and said deflector driving circuit with respect to one another.
3 more elements
A method for installing circuit boards on an optical scanning apparatus, said method comprising:
- a step for mechanically mounting a light source unit on a first circuit board;
- a step for mechanically mounting a deflector, for deflecting light beam from said light source unit, on a second circuit board;
- a step for electrically connecting said first circuit board and said second circuit board through a flexible board;
- a step for mechanically connecting said first circuit board and said second circuit board;
- and
- a step for mechanically adjusting the position of said first circuit board and said second circuit board with respect to one another.
3 more elements
A recording apparatus comprising:
- a light source unit;
- a first circuit board provided with said light source unit;
- a deflector for deflecting light beam from said light source unit;
- a second circuit board provided with said deflector, including means for mechanically connecting said first and second circuit boards, and further including means for adjusting the position of said first and second circuit boards with respect to one another;
- means for electrically connecting said first and second circuit boards through a flexible board;
- and
- a recording medium for receiving the light beam deflected by said deflector.
4 more elements
A recording apparatus comprising:
- a light source unit;
- a light source unit driving circuit for driving said light source unit;
- a deflector for deflecting light beam from said light source unit;
- a recording medium for receiving the light beam deflected by said deflector;
- a deflector driving circuit for driving said deflector;
- and
- a single circuit board on which said light source unit driving circuit and said deflector driving circuit are each mounted in a predetermined relationship.
4 more elements
A recording apparatus comprising:
- a light source unit;
- a deflector for deflecting light beam from said light source unit;
- a recording medium;
- optical means for guiding the light beam deflected by said deflector to said recording medium, with said optical means and said light source unit each being installed in a predetermined relationship on a single circuit board of said light source unit;
- and
- light receiving means for receiving the light beam guided in a predetermined direction by said optical means.
3 more elements
An apparatus according to claim. 4, further comprising light receiving means for receiving the light beam deflected by said deflector and installed on said single circuit board.
An optical scanning apparatus comprising:
- a light source unit;
- a light source unit driving circuit for driving said light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a deflector driving circuit for driving said deflector;
- and
- light receiving means for receiving the light beam deflected by said deflector, said light receiving means being mounted on a circuit board of said light source unit driving circuit.
3 more elements
A recording apparatus comprising:
- a light source unit;
- a light source unit driving circuit for driving said light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a deflector driving circuit for driving said deflector;
- a recording medium for receiving the light beam deflected by said deflector;
- and
- a light detector for receiving the light beam deflected by said deflector, said light detector being mounted on a circuit board of said light source unit driving circuit.
4 more elements
An optical scanning apparatus comprising:
- a light source unit;
- a light source unit driving circuit for driving said light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a deflector driving circuit for driving said deflector;
- optical means for guiding the light beam deflected by said deflector in a predetermined direction, said optical means being mounted on a circuit board of said light source unit driving circuit;
- and
- light receiving means for receiving the light beam guided in said predetermined direction by said optical means.
4 more elements
A recording apparatus comprising:
- a light source unit;
- a light source unit driving circuit for driving said light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a deflector driving circuit for driving said deflector;
- a recording medium for receiving the light beam deflected by said deflector;
- optical means for guiding the light beam deflected by said deflector in a predetermined direction, said optical means being mounted on a circuit board of said light source unit driving circuit;
- and
- a light detector for receiving the light beam guided in said predetermined direction by said optical means.
5 more elements
An optical scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting a light beam from said light source unit;
- optical means for guiding the light beam deflected by said deflector in a predetermined direction;
- and
- light receiving means for receiving the light beam guided in said predetermined direction by said optical means, said light receiving means being mounted on a circuit board of said light source unit.
2 more elements
A recording apparatus comprising:
- a light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a recording medium for receiving the light beam deflected by said deflector;
- optical means for guiding the light beam deflected by said deflector in a predetermined direction;
- and
- a light detector for receiving the light beam guided in said predetermined direction by said optical means, said light detector being mounted on a circuit board of said light source unit.
3 more elements
An optical scanning apparatus comprising:
- a light source unit;
- a deflector for deflecting a light beam from said light source unit;
- optical means for guiding the light beam from said light source unit in a predetermined direction, said optical means being mounted on a circuit board of said light source unit;
- and
- light receiving means for receiving the light beam deflected by said deflector.
2 more elements
A recording apparatus comprising:
- a light source unit;
- a deflector for deflecting a light beam from said light source unit;
- a recording medium for receiving the light beam deflected by said deflector;
- optical means for guiding the light beam from said light source unit in a predetermined direction, said optical means being mounted on a circuit board of said light source unit;
- and
- a light detector for receiving the light beam deflected by said deflector.
3 more elements
Dependencies are inferred from the claim text.