Abstract:
An illuminating apparatus includes a columnar light guide (1, 2), a board (11, 12) having a light source (3, 4, 5, 6) fastened on one surface thereof, and a holder (7, 8). The holder is formed with a through-hole (7a, 7b, 8a, 8b) into which an end of the light guide (1, 2) in the columnar center axis direction is fitted to hold the light guide (1, 2), and a catch (7c, 7d, 8c, 8d) that catches and holds the board (11, 12) with the light source (3, 4, 5, 6) facing the end surface of the light guide (1, 2) in the columnar center axis direction in the through-hole (7a, 7b, 8a, 8b).
Abstract:
A contact-type image sensor (20) comprises a case (21), a glass cover (22) provided on an upper surface of the case (21), a bottom substrate (23) mounted in a bottom surface of the case (21), light receiving elements (24) mounted on the bottom substrate, light emitting elements (25) for irradiating an object (D) on the glass cover (22) with light, and a rod lens array (27) for collecting the light reflected by the object (D) on the glass cover (22) onto the light receiving elements (24). The light emitting elements (25) are mounted on the bottom substrate (23). The contact-type image sensor further comprises a light guide (26) provided in the case (21) for efficiently directing the light from the light emitting elements (25) to a predetermined region (L) of the glass cover (22). The case (21) is formed with a holding groove (29) for receiving the rod lenses array (27) from above, and the light guide (26) has ends each formed with a tab (37) for pressing the rod lens array (26) from above.
Abstract:
A contact-type image sensor (20) is provided with a case (21), a glass cover (22) fitted to the top face of the case (21), a bottom substrate (23) fitted to the bottom face of the case (21), a light receiving element (24) mounted on the substrate (23), a light emitting element (25) which projects light upon an object (D) on the cover (22), and a rod lens array (27) which focuses reflected light from the object (D) on the cover (22) on the element (24). The element (25) is mounted on the substrate (23) and a light guiding member (26) is additionally provided in the case (21) to effectively project the light from the element (25) upon a prescribed area of the cover (22).
Abstract:
밀착형 이미지 센서 유닛은, 원고 조명용의 광원(10)과, 상기 광원(10)으로부터의 광을 원고로 유도하기 위한 막대 형상의 도광체(11)와, 상기 원고로부터의 반사광을 광전 변환 소자에 결상하는 결상 소자(12)와, 상기 광전 변환 소자가 실장된 센서 기판(14)과, 이들을 장착함과 함께 상기 도광체(11)를 장착하기 위한 위치 결정부(200)를 갖는 프레임(15)과, 상기 도광체(11)를 착탈 가능하게 지지하고, 또한 상기 위치 결정부(200)에 착탈 가능하게 장착되는 지지 부재(16)를 구비하고 있다. 접착재를 사용하지 않고, 도광체(11)를 프레임(15)에 장착할 수 있으므로, 도광체(11)의 변형이나 밀착형 이미지 센서 유닛의 휨 등을 방지할 수 있다.
Abstract:
A scanner module and an image scanning apparatus employing the same are provided to minimize light leaked through longitudinal direction both ends of a light guide, thereby increasing the amount of light emitted through the light guide even though the same light source is used. A light source applied light. A light guide(113) converts a travel route of the light applied from the light source. In a light source holder(112), the light source is installed. The light source holder is installed to cover an incident surface of the light guide on which the light is applied. The light source holder reflects light. The guide holder(114) includes a light guide installation unit(114a) and a mounting unit(114b) to install the light source holder.
Abstract:
An illuminating device (210) according to an embodiment of the invention included in an image reading apparatus (100) and an image forming apparatus (D) includes light source portions (211a1), (211b1), (211a2) and (211b2), light-guiding members (213a) and (213b) for illuminating an illumination target (G) from an elongated light emitting face (M) that extends in a longitudinal direction (Y), by guiding light from the light source portions, and holding members (216a) and (216b) for holding the light-guiding members. The holding members include holding portions (2161a) and (2161b) for removably holding the light-guiding members, and tilted portions (2162a) and (2162b) that reflect light emitted from the light emitting face (M), the tilted portions extending from a front end on the light emitting face (M) side of the holding portions, obliquely widening with increasing distance from the light-guiding members.
Abstract:
A multi-functional device comprising an image forming apparatus to form a printing image and a scanner module to scan an image in a first scanning direction. The scanner module includes an illuminator to illuminate a light to a document mount, a sensor unit to read an image information of an object placed on the document mount, and an imaging lens which is disposed between the document mount and the sensor unit and focuses the light reflected from the object onto the sensor unit. The illuminator includes a light source to emit light, a light guiding unit which is lengthened in a second scanning direction, faces the document mount and changes a traveling path of the light emitted from the light source to illuminate the document mount, and a guide holder which comprises an installation part where the light guiding unit is installed, and a mounting part where the light source holder is mounted to provide the light source at least one side of the light guiding unit.
Abstract:
A protruding locking pawl is provided at an end of a light guide which corresponds to a first light input surface. A recessed locking portion is formed in a frame so that the locking pawl can be locked in the locking portion. A light blocking member is slidably loosely inserted into a position where the light blocking member covers a longitudinal end of the light guide which corresponds to a second light input surface. Even if expansion and contraction occurs in the longitudinal direction of the light guide, the design dimensions of a first gap A and a second gap B can be maintained; the first gap A is formed between the first light input surface and a first light source, and the second gap B formed between the second light input surface and a second light source. Therefore, possible leakage current can be prevented.