JPH01201640A - Color hard copying device - Google Patents

Abstract

PURPOSE:To output color hard copies of high image quality by exposing image information of red, green, and blue colors directly onto a photosensitive recording medium by means of one liquid crystal panel. CONSTITUTION:An image forming device 1 is constituted of the liquid crystal panel 2, a light source 3, an image/data processing circuit 4, a control circuit 6 which converts a signal from the circuit 4 into a signal so as to drive the liquid crystal panel 2, a rotary type color separation filter 6 which separates beams from the light source 3 into red, green, and blue colors, and a lens 7 which projects image information, etc. Image information corresponding to the beam selected by the color separation filter 6 is outputted to the liquid crystal panel 2, and a projected image is exposed on the photosensitive recording medium 9 of the image recording device 8. By applying this process to red, green, and blue beams, three in all, color images are formed. Thus, copying of high image quality can be made whether monochrome or multicolor, and a system is made compact and cost down.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a color hard copy device that copies images by directly recording image information from a liquid crystal panel onto a photosensitive recording medium.

[Conventional technology]

The conventional method of hard copying has been to convert soft copies into electrical signals and indirectly obtain various hard copies. Methods of this printer include a wire dot method, a thermal method, an inkjet method, and a photographic method. Further, as a method for directly copying soft copies, there is a silver halide copying method. This is a method in which the soft copy surface is directly photographed with a camera and printed on photographic paper.

[Problem to be solved by the invention]

However, conventional indirect methods require a very large printing system and have problems such as it takes a relatively long time to complete printing, and depending on the method, it is difficult to obtain high-quality full-color prints. In the case of the rough silver halide photography method, high quality prints can be obtained, but the problem is that the running cost is extremely high.

The purpose of the present invention is to easily print out whether it is full color or monochrome, to make the system very compact and low cost, to print out in a short time, and to easily change the print size. The purpose is to change continuously.

[Means to solve the problem]

The color hard copy apparatus according to the present invention is a system that has a liquid crystal panel and a projection lens and records projected image information directly on a photoreceptor, and is characterized by having only one liquid crystal panel. In addition, in order to improve image quality, the color separation IIJ filter cuts 95% of ultraviolet and near-infrared rays, and the overlap of each red, green, and blue spectral curve in the visible light range is 5% or less, and the image information The feature is that the filter rotates in response to the

〔Example〕

FIG. 1 shows the basic configuration of the present invention. 1 is an image forming device, and a liquid crystal panel 2. 5. Light source 52 Image/data processing circuit 49 A control circuit that converts a signal from the image/data processing circuit into a signal for driving the liquid crystal panel 2. Rotating color separation filter that separates the light from the light source 3 into red, green, and blue light 6.
It includes a lens 7 for projecting two pieces of image information. 8 is a photosensitive recording medium 9. Pressure roller 10. This is an image recording device consisting of a non-contact heater, 11° shutter, and 12 shutters. In the case of color, image information corresponding to the light selected by the color separation filter 6 is outputted to the liquid crystal panel 2, and the projected image is exposed onto the photosensitive recording medium 9 of the image recording device 8. Red this process.

A color image is formed by using green and blue three-color light. The photosensitive recording medium used is paper on which an oxidizing agent and microcapsules containing a coloring agent are uniformly coated. When the microphone curvature capsule is irradiated with light, only that part of the capsule solidifies, and the remaining part of the capsule that is not irradiated with light has its outer shell destroyed by a pressure vessel, reacts with an oxidizing agent, and becomes a second layer that develops color when heated. The figure shows another embodiment of the present invention, and reference numeral 1 designates an image forming apparatus similar to the embodiment shown in FIG.

28 is a photosensitive recording medium 29. Pressure roller 50. Non-contact heater 31. Transfer recording paper 52. This is an image recording device consisting of a shutter 55. The photosensitive recording medium is basically the same as that of the embodiment shown in FIG. 1, except that the coloring agent is used to develop color on another transfer recording paper. As the transfer recording paper, when using microcapsules similar to the embodiment shown in FIG. 1, plain paper coated with a fermenting agent is used.

Further, when the microcapsules contain a self-coloring colorant, plain paper can be used as the transfer recording paper. FIG. 5 shows the spectral characteristics of the chromatic wf filter used in this example. The overlap of the shaded areas is 5% or less.

The color hard copy output time in the image recording apparatus in the example shown in FIGS. 1 and 2 was about 6 seconds, and the image quality was good. Although not shown in the figure, it is possible to separate the projected images using a semi-transparent mirror, and separate the functions of one for projection and the other for color hard copy exposure. It is possible to make copies while viewing.

〔Effect of the invention〕

As described above, according to the present invention, a high-quality color hard copy can be output by exposing red, green, and blue image information three times on a photosensitive recording medium using one liquid crystal panel. can. Further, according to the present invention, the liquid crystal panel has one
Since the number of components is small, it is possible to provide a low-cost hard copy device. Further, according to the present invention, the mechanism is simplified and an output interface to a printer is not required.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a hard copy device according to the present invention. FIG. 2 shows the Bartco applicant in another embodiment of the invention.
Seiko Epson Corporation Representative Patent Attorney Mogamiji (1 other person) Figure 1 Figure 2

Claims (3)

[Claims] (1) In a system that has a liquid crystal panel and a projection lens and records projected image information directly on a photoreceptor, one liquid crystal panel
A color hard copy device characterized by a single sheet of paper. (2) Color separation filter blocks 95% of ultraviolet and near-infrared rays
2. The color hard copy device according to claim 1, wherein the color hard copy device performs cutting. (3) The characteristics of the color separation filter are red centered at 650 nm, green centered at 550 nm, and blue centered at 450 nm, and the overlapping portion with the spectral curve of adjacent colors is 5% or less with respect to the intensity of monochromatic light. 2. The color hard copy device according to claim 1.