JPH0681224B2 - Scanner device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a scanner device having a display.

2. Description of the Related Art Conventionally, as shown in FIG.
An LCD 2 which is a display is provided on the upper surface of the housing 1, and a light source 3 serving as a backlight is provided below the LCD 2. LC
Since D2 itself does not emit light, an EL (electroluminescence) panel or a fluorescent lamp is used as the light source 3 in order to obtain a bright display on the LCD 2. Further, 4 is an image sensor composed of a CCD or the like, 5 is a document feeding roller, and 6 is a document illuminating document.
The LED light source 7 is a SELFOC lens array, and the light from the LED light source 6 is applied to the reading point on the surface of the original 8 conveyed by the feed roller 5, and the reflected light is condensed through the SELFOC lens array 7 to form an image. It is read by the sensor 4.

However, in such a configuration, the LED light source 6 for illuminating the original and the LCD
Since the EL light source 3 for the backlight 2 is separately required, there is a problem that the cost of the entire apparatus becomes high.

The present invention has been made in view of the above-mentioned problems, and provides a scanner device capable of reducing the cost without separately providing a backlight for a display and a light source for illuminating a document. The purpose is to

Means for Solving the Problems In order to solve the above-mentioned problems, the gist of the present invention is to provide a light guide member that guides light emitted from a light source for illuminating a document to a display.

With the above-described configuration, the present invention guides the light emitted from the light source that illuminates the document to the display by the light guide member, so that one light source can be used as both the illumination of the document surface and the backlight of the display. it can.

Embodiment FIG. 1 shows a schematic configuration of a scanner device according to an embodiment of the present invention.

In the figure, reference numeral 11 denotes a housing, which has an LCD 12 which is a display display showing various modes on the upper surface. Inside the housing 11, a release roller 14 that conveys the document 13, a fluorescent lamp 15 that is a light source that illuminates the reading point on the surface of the document 13 from above, and from the surface of the document 13 that is illuminated by this fluorescent lamp 15 The selfoc lens array 16 that condenses the reflected light of, the image sensor 17 that receives the light condensed by the selfoc lens array 16 and reads the original 13, and the lower part of the LCD 12 are arranged.
A reflecting plate (18) that reflects a part of the light emitted from the fluorescent lamp (15) and diffused to the entire lower surface of the LCD (12) is provided.

The reflector 18 ensures that the light emitted from the fluorescent lamp 15 is
Is installed with a predetermined inclination angle corresponding to the positional relationship between the fluorescent lamp 15 and the LCD 12. Also, fluorescent light
A light blocking member 19 is provided between the reflector 15 and the reflector 15 so that the light from the fluorescent lamp 15 travels in the direction in which the LCD 12 is installed and does not travel in an unnecessary direction. And the reflector 18
The light-shielding member 19 constitutes a light guide member.

The operation of the scanner device having such a configuration will be described below.

In this embodiment, the light emitted from the fluorescent lamp 15 illuminates the reading point on the surface of the original 13 and this is the selfoc lens array 16
Is read by the image sensor 17. Also,
A part of the diffused light from the fluorescent lamp 15 is blocked by the light blocking member 19 and the LCD 1
2 It is guided to the lower part and is totally reflected by the reflector 18
The entire lower surface of 12 is evenly illuminated. That is, a part of the light of the fluorescent lamp 15 that illuminates the surface of the original 13 is reflected by the reflection plate 18 to be guided to the lower surface of the LCD 12 and acts as a backlight.

As described above, according to the above-described embodiment, since the reflection plate 18 that guides the light from the fluorescent lamp 15 to the LCD 12 is provided in the lower portion of the LCD 12, the fluorescent lamp 15 is used as both the illumination of the original document 13 and the backlight of the LCD 12. can do.

It should be noted that, in the above-described embodiment, an example in which the reflection plate 18 and the light blocking member 19 are used as the light guide member has been described, but other configuration examples are possible. For example, installing an optical fiber cable between the fluorescent lamp 15 and the LCD 12 to guide light,
Alternatively, the light may be guided by an optical system in which a lens and a prism are combined.

EFFECTS OF THE INVENTION As is apparent from the above description, the present invention includes the light guide member that guides the light emitted from the light source that illuminates the original document to the display display. It can also be used as a backlight, and has an effect that the cost of the entire device can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a scanner device showing an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of a conventional scanner device. 12 ... LCD (display display), 13 ... Original, 15 ... Fluorescent lamp (light source), 17 ... Image sensor, 18 ... Reflector (light guide member), 19 ... Light blocking member.

Claims (1)

[Claims] 1. A light source for illuminating a document, an image sensor for reading a document surface illuminated by the light source, a display, and a light guide member for guiding the light emitted from the light source to the display. Scanner device.