JPS63220127A - Color image recorder - Google Patents

Abstract

PURPOSE:To faithfully reproduce the tone of a color of an image by providing the second optical filter for eliminating the influence by the transmission quantity changed by a first optical filter, on a optical path extending from a transmission original to an observing position. CONSTITUTION:A moving type reflecting mirror 46 is provided on an optical path extending from an image forming lens 44 to photosensitive and pressure sensitive paper 34, and at the time of recording an image onto the photosensitive and pressure sensitive paper 34, the optical path is not changed, but when it is moved and set in the direction as indicated with an arrow A, the irradiation light from the image forming lens 44 is reflected in the right direction. In such a irradiated direction, a screen 50 is provided through a visual observation color correcting filter 48. The visual observation correcting filter 48 consists of a structure in which two pieces of a blue filter and a green filter are superposed, and decreases the transmission quantity of a red light. In such a state, a light beam which is transmitted through a slide 42 and the image forming lens 44 is reflected by the moving type reflecting mirror 46, and its reflected light is radiated to the screen 50 through the visual observation color correcting filter 48. In such a way, even in a color image on the screen, its tone of a color can be reproduced faithfully.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is a color paper that can record an image of a transparent original on photosensitive paper in color and project the image in color on a screen. The present invention relates to an image recording device.

[Prior Art] Conventionally, there have been color image recording apparatuses of this type having the configurations described below.

That is, as shown in the schematic diagram of FIG. 4, the photosensitive paper 10 for color recording and the photosensitive paper 1 for color recording
and a light source 14 that irradiates light to the slide 12, and records the image of the slide 12 in color on the photosensitive paper 10 for color recording with the irradiation light emitted from the light source 14 through the slide 12, and also records the image in color from the slide 12 on the photosensitive paper 10 for color recording. A movable reflecting mirror 16 provided on the optical path leading to the recording photosensitive paper 10 and a screen 18 are provided. The slide 12 was configured to project the image of the slide 12 onto the slide 18 in color.

By the way, the color recording photosensitive paper 10 develops color when it receives blue light, green light, and red light.
It is known that the required exposure amount of each color light differs depending on the color light. For example, when the color recording photosensitive paper 10 is a type of photosensitive pressure sensitive paper carrying microcapsules containing a dye, the amount of exposure required to be sensitive to red light is as shown in the graph of FIG. There is something extremely large. For this reason, conventionally, as shown in FIG. 4, on the optical path from the light source 14 to the installation position of the movable reflective mirror 16, there is a red filter and a blue filter that transmit only red, blue, and green light. By stacking three green filters and providing a color light adjustment filter 20 that can adjust the amount of transmission of each color of light, a specific color, for example, red light can be exposed more than other color light, and the light-sensitive and pressure-sensitive paper can be It was proposed to balance each color of a color image.

The color light adjustment filter 20 is provided on the optical path from the light source 14 to the installation position of the movable reflecting mirror 16 in order to make the entire apparatus more compact.

On the other hand, it is also possible to provide the color light adjustment filter 20 near the color recording photosensitive paper 10, but in this case,
The color light adjustment filter 20 has a problem of increasing the size of the device, so it has not been generally adopted.

[Problems to be Solved by the Invention] However, the former compact color image recording device had the following problems. That is, the hue of the color image recorded on the color recording photosensitive paper 10 is well-balanced by the color light adjustment filter 20, whereas the hue of the color image projected on the screen 18 is balanced by the color light adjustment filter 20. The filter 20 emphasized certain colored lights, resulting in poor balance. For example, when a large amount of red light is exposed using the color light adjustment filter 20 as described above, the color image projected on the screen 18 has a reddish hue. That is, slide 12
It is not possible to faithfully reproduce the color tone of the image on the screen 18, and due to this, the image is projected on the screen 18 with the same color tone as the color image recorded on the color recording photosensitive paper. The problem was that I couldn't do it.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a color image recording device that is compact in its entirety and yet produces good color images on a screen as well as color images on photosensitive paper. It is said that

[Means for Solving the Problems] To achieve the above object, the color image recording device of the present invention comprises a photosensitive recording medium for color recording having different sensitivities to light of each color, and color information. A light source that irradiates light to the photosensitive recording medium through the transparent original on which an image is formed, and a light source that is provided on the optical path from the light source to the photosensitive recording medium via the transparent original and that transmits light of each color. a first optical filter whose amount is set according to the sensitivity of the photosensitive recording medium;
screen irradiation means for irradiating a predetermined screen with transmitted light from the transparent original via the first optical filter, the image is recorded in color on the photosensitive recording medium, and the image is printed on the screen The color image recording device projects an image in color, and when the screen is irradiated with the transmitted light by the screen irradiation means, the above-mentioned light is projected onto the optical path from the transparent original to a predetermined observation position via the screen. A second optical filter is provided which adjusts the amount of transmission of light of each color and eliminates the influence of the amount of transmission changed by the first optical filter.

[Function] In the color image recording apparatus of the present invention configured as described above, since the amount of transmission of each color light of the first optical filter is set according to the sensitivity of the photosensitive recording medium, the amount of transmission through the first optical filter is When a photosensitive recording medium for color recording is irradiated with transmitted light from the transparent original, the color image formed on the photosensitive recording medium has a well-balanced hue. On the other hand, when the screen irradiation means irradiates the screen with the transmitted light from the transparent original through the first optical filter, there is a light beam on the optical path from the transparent original to the predetermined observation position via the screen. Since two optical filters are provided, for example, if the amount of red light transmitted through the first optical filter is increased, the amount of red transmitted through the second optical filter is decreased. The influence of the amount of transmission can be removed, and the hue of the color image formed on the screen will be well-balanced.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a schematic diagram showing the configuration of an optical system of a color image recording apparatus as a first embodiment of the present invention.

As shown in the figure, a halogen lamp 32 that is supplied with power from a power source 30 and irradiates natural light, a light-sensitive pressure-sensitive paper 34,
are provided at opposing positions.

On the optical path from the halogen lamp 32 to the photosensitive and pressure sensitive paper 34, from the halogen lamp 32 side, a color light adjustment filter 361 and a color light adjustment filter 36 are provided in which the amount of light transmitted for each color is set according to the sensitivity of the light and pressure sensitive paper 34. Diffusion plate 38 that diffuses and transmits the transmitted light. A condenser lens 40 that converts input light into parallel light, a slide 42 on which an image having color information is formed, and an imaging lens 44 that forms an image of the input light are provided.

The photosensitive and pressure sensitive paper 34 is a well-known paper that carries microcapsules containing a dye precursor and a photopolymerization initiator and is capable of producing a color image. Low sensitivity to light. The color light adjustment filter 36 has a structure in which a red filter, a blue filter, and a green filter are stacked on top of each other, and the amount of light transmitted by each color is set to be different by adjusting the amount of light transmitted through each filter. It is. In the case of this embodiment, the photosensitive pressure sensitive paper 3
Since the sensitivity of No. 4 is low for red light, it is set so that the amount of red light transmitted is large.

The natural light emitted from the halogen lamp 32 in this way is
The color light adjustment filter 36 emphasizes the red color, the diffuser plate 38 diffuses the light into uniform light, the condenser lens 40 converts the light into parallel light, and then the slide 42 is irradiated with the light. The light transmitted through the slide 42 is focused onto the photosensitive pressure sensitive paper 34 by an imaging lens 44, and the image formed on the slide 42 is recorded in color.

On the other hand, a movable reflecting mirror 46 is provided on the optical path from the imaging lens 44 to the photosensitive pressure sensitive paper 34. When recording an image on the photosensitive pressure sensitive paper 34 as described above, the movable reflecting mirror 46 is located at the position shown by the solid line in FIG. 1 and does not change the optical path. When it is moved and set at the position shown by the two-dot chain line, it reflects the irradiation light from the imaging lens 44 to the right in the figure. A screen 50 is provided in this irradiation direction via a visual color correction filter 48 . The visual color correction filter 48 has a structure in which a blue filter and a green filter are stacked on top of each other, and reduces the amount of red light transmitted. Thus, slide 42. The light transmitted through the imaging lens 44 is reflected by the movable reflecting mirror 46, and the reflected light is irradiated onto the screen 50 via the visual color correction filter 48.
The image of slide 42 is projected in color onto 0.

In the color image recording apparatus of this embodiment configured as described above, although the amount of red light transmitted through the color light adjustment filter 36 is increased to compensate for the sensitivity of the photosensitive pressure sensitive paper 34, the projected light reaching the screen 50 is In this case, the amount of transmission of the red component is reduced by the visual color correction filter 48. For this reason, the hue of the color image projected on the screen 50 is adjusted by the slide 4.
The color tone of the image developed on the photosensitive pressure sensitive paper 34 can be approximated. Note that by completely matching the increase in the amount of red light transmitted through the color light adjustment filter 36 and the decrease in the amount of red light transmitted through the visual color correction filter 48, the colors projected on the screen 50 can be adjusted. The color tone of the image can be perfectly matched with the color tone developed on the photosensitive pressure sensitive paper 34. In addition, since the two are perfectly matched as described above, the light-sensitive and pressure-sensitive paper 34 is actually exposed and developed by the image projected on the screen 50.
The color tone of the image can be checked in advance, and only good images can be developed with the light-sensitive and pressure-sensitive paper 34 as appropriate.

In the color image recording device of the first embodiment, the visual color correction filter 48 is provided on the optical path from the movable reflecting mirror 46 to the screen 50, but instead of this, the color image recording device of the present invention is provided. As a second embodiment, as shown in FIG. 2, a visual color correction filter 60 may be provided on the optical path from the screen 50 to the observation position 62. The second embodiment has the same effects as the first embodiment, and
Particularly, the present invention has the advantage of being easy to manufacture by simply attaching the visual color correction filter 60 to the outside of a conventional color image recording apparatus.

Furthermore, in the color image recording apparatus of the first embodiment, the color light adjustment filter 36 and the diffusion plate 38 are connected to the halogen lamp 3.
It is provided on the optical path from 2 to the slide 42,
Instead, as a third embodiment of the present invention, as shown in FIG. 3, a color light adjustment filter 70 capable of emphasizing red light is provided on the optical path from the slide 42 to the movable reflector 46. Good too. Note that the color light adjustment filter 70 of this example allows color light adjustment without using the diffuser plate 72.

Note that the slide 42 in the embodiments described above may be of any type as long as it is a transparent original, and may be a transparent sheet for OoH and P, for example.

According to the color image recording apparatus of the present invention described in detail above, the color tone of an image of a transparent original can be faithfully reproduced not only in a color image on a photosensitive recording medium for color recording but also in a color image on a screen. Can be reproduced. Furthermore, it is also possible to project an image on a screen in the same hue as the color image recorded on the photosensitive recording medium for color recording.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the configuration of an optical system of a color image recording apparatus as a first embodiment of the present invention, and FIG.
FIG. 3 is a schematic diagram showing a partial configuration of an optical system according to the third embodiment of the present invention; FIG.
The figure is a schematic diagram showing the configuration of a conventional optical system, and FIG. 5 is a graph showing the required exposure amount of light and pressure sensitive paper for each color light. 32...Halogen lamp 34...Light-sensitive pressure-sensitive paper 3
6.70... Color light adjustment filter 42... Slide 46... Movable reflecting mirror 48.
60... Visual color correction filter 50... Screen

Claims (1)

[Scope of Claims] A color recording photosensitive recording medium that has different sensitivity to light of each color, a light source that irradiates light onto the photosensitive recording medium through a transparent original on which an image having color information is formed, and the light source. a first optical filter provided on an optical path extending from the transparent original to the photosensitive recording medium, the amount of transmission of each color of light being set according to the sensitivity of the photosensitive recording medium; and the first optical filter screen irradiation means for irradiating transmitted light from a transparent original onto a predetermined screen via a transparent original; In the color image recording device, when the screen is irradiated with the transmitted light by the screen irradiation means, the transmitted light of each color is placed on an optical path from the transparent original to a predetermined observation position via the screen. A color image recording device comprising a second optical filter that adjusts the amount of transmission and eliminates the influence of the amount of transmission changed by the first optical filter.