Contact image sensor unit including a detachable light guide supporting member and image reading apparatus using the same
First Claim
1. A contact image sensor unit, comprising:
- a light source configured to illuminate an original;
a rod-like light guide configured to guide light from said light source to the original;
an imaging element configured to form reflected light from the original on a plurality of photoelectric conversion elements;
a sensor substrate on which said plurality of photoelectric conversion elements are mounted;
a frame to which said light source, said light guide, said imaging element, and said sensor substrate are attached and which has a positioning part for attaching said light guide thereto; and
a plurality of supporting members which attachably/detachably and slidably support said light guide and are attachably/detachably attached to said positioning part, said plurality of supporting members supporting said light guide and said light guide being slidable in a main-scan direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A contact image sensor unit includes: a light source (10) illuminating an original; a rod-like light guide (11) guiding light from the light source to the original; an imaging element (12) forming reflected light from the original on a plurality of photoelectric conversion elements; a sensor substrate (14) on which the plurality of photoelectric conversion elements are mounted; a frame (15) to which they are attached and which has a positioning part (200) for attaching the light guide (11) thereto; and a supporting member (16) which attachably/detachably supports the light guide (11) and is attachably/detachably attached to the positioning part (200). Since the light guide (11) can be attached to the frame (15) without using an adhesive, the deformation of the light guide (11), the warpage of the contact image sensor unit and so on can be prevented.
101 Citations
21 Claims
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1. A contact image sensor unit, comprising:
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a light source configured to illuminate an original; a rod-like light guide configured to guide light from said light source to the original; an imaging element configured to form reflected light from the original on a plurality of photoelectric conversion elements; a sensor substrate on which said plurality of photoelectric conversion elements are mounted; a frame to which said light source, said light guide, said imaging element, and said sensor substrate are attached and which has a positioning part for attaching said light guide thereto; and a plurality of supporting members which attachably/detachably and slidably support said light guide and are attachably/detachably attached to said positioning part, said plurality of supporting members supporting said light guide and said light guide being slidable in a main-scan direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An image reading apparatus comprising:
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a casing; and a contact image sensor unit; wherein said contact image sensor unit includes, a light source configured to illuminate an original, a rod-like light guide configured to guide light from said light source to the original, an imaging element configured to form reflected light from the original on a plurality of photoelectric conversion elements, a sensor substrate on which said plurality of photoelectric conversion elements are mounted, a frame to which said light source, said light guide, said imaging element, and said sensor substrate are attached and which has a positioning part for attaching said light guide thereto, and a plurality of supporting members which attachably/detachably and slidably support said light guide and are attachably/detachably attached to said positioning part, said plurality of supporting members supporting said light guide and said light guide being slidable in a main-scan direction.
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21. A contact image sensor unit, comprising:
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a light source configured to illuminate an original; a rod-like light guide configured to guide light from said light source to the original; an imaging element configured to form reflected light from the original on a plurality of photoelectric conversion elements; a sensor substrate on which said plurality of photoelectric conversion elements are mounted; a frame to which said light source, said light guide, said imaging element, and said sensor substrate are attached and which has a positioning part for attaching said light guide thereto; and a plurality of supporting members which attachably/detachably and slidably support a portion in a longitudinal direction of said light guide and are attachably/detachably attached to said positioning part, said plurality of supporting members supporting said light guide and said light guide being slidable in a main-scan direction.
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Specification