Unlock instant, AI-driven research and patent intelligence for your innovation.

Medium handling machine

A technology for image display devices and projectors, which can be used in projection devices, image communication, lighting devices, etc., and can solve problems such as difficulty in adapting, darkening of image display, and difficulty in improving light utilization efficiency

Inactive Publication Date: 2004-03-31
SEIKO EPSON CORP
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, it will be a structure that is difficult to adapt to projectors using high-voltage discharge lamps.
In addition, since there must be light sources that are extinguished in principle, there is a problem that the display of the image becomes darker for the number of light sources that originally existed.
Furthermore, according to the structure of Patent Document 2, instead of scanning the light emitted from the light source itself, the light is diverged from the light source to multiple directions by rotating the light collecting tube with the slit formed, which limits the light emitted by the light source. The direction of the light and the illuminated area are defined, so there is a problem that it is difficult to reliably guide the light that does not directly pass through the slit to the display element for irradiation
Therefore, it is difficult to improve the utilization efficiency of light

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medium handling machine
  • Medium handling machine
  • Medium handling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] figure 1 It is a figure explaining the concept of the projector concerning Embodiment 1 of this invention. The projector 100 mainly includes: a light source 110 ; fly-eye lenses 121 , 122 ; an overlapping lens 123 ; a rotating prism 130 ; a parallelizing lens 140 ;

[0065]The light source 110 is composed of a lamp 111 and a concave mirror 112 . The lamp 111 is constituted by, for example, a discharge lamp such as a high-pressure mercury lamp, and the concave mirror 112 is constituted by a parabolic mirror. In addition, the lamp 111 and the concave mirror 112 are not limited to this structure. In this light source 110 , a lamp 111 emits illumination light, a concave mirror 112 reflects the illumination light, and emits illumination light having an illuminance distribution toward fly-eye lenses 121 , 122 . At this time, if the lamp 111 is an LED light source, the concave mirror 112 is not used, but a condenser lens is used, which may be a structure that emits illumin...

Embodiment approach 2

[0082] In this embodiment described below, the same reference numerals are attached to the same structures as those of the above-described embodiment, and descriptions of common operations or actions are omitted. In addition, in the case where the same name is given, the basic description is omitted because the function is almost the same even if the reference numerals are different.

[0083] Figure 4 It is a figure explaining the concept of the projector concerning Embodiment 2 of this invention. The projector 200 mainly includes: a light source 110 ; cylindrical array lenses 221 , 222 ; an overlapping lens 223 ; a rotating prism 130 ; a parallelizing lens 140 ;

[0084] In Embodiment 1, a fly-eye lens and a superposition lens were used as the illumination optical system, but in this Embodiment 2, after using Figure 5 The difference between a lens array in which cylindrical lenses that change the condensing magnification in only one direction is arranged in an array and a...

Embodiment approach 3

[0089] In this embodiment described below, the same reference numerals are attached to the same structures as those of the above-described embodiment, and descriptions of common operations or actions are omitted. In addition, in the case where the same name is given, the basic description is omitted because the function is almost the same even if the reference numerals are different.

[0090] Figure 6 It is a figure explaining the outline of the projector in Embodiment 3 of this invention. The projector 300 mainly includes: a light source 110 ; fly eye lenses 321 , 322 ; rotating prisms 331 , 332 , 333 , 334 ; overlapping lens 323 ; parallelizing lens 140 ; ​​liquid crystal light valve 150 and projection lens 160 .

[0091] In Embodiment 1, the case where one rotating prism is arranged between the superimposed lens and the parallelizing lens is described, but in Embodiment 3, each part of the light divided by the fly-eye lens 321 is The difference is that a plurality of rot...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The subject of the present invention is to provide an image display apparatus and a projector capable of providing excellent definition or utilization efficiency of light so as to improve the display performance of a moving picture. The invention is provided with the followings: a light source 110 for emitting illumination light; a liquid crystal light valve 150 serving as a spatial light modulator and having an image formation area for forming image light by modulating the illumination light in accordance with an electric signal; a pair of fly-eye lenses 121, 122 and a superposition lens 123 of an irradiation optical system for converting at least one of the shape and size for the light beam of the illumination light emitted from the light source 110 and irradiating the converted illumination on an area smaller than the image formation area; a rotating prism 130 of an illumination-light scanning optical system capable of scanning the illumination light irradiated by the irradiation optical system on the image-forming area; and a projection lens 160 of a projection means for projecting the image light modulated by the light valve 150.

Description

technical field [0001] The present invention relates to an image display device and a projector. More specifically, it involves making illuminating light emitted from a light source irradiate a spatial light modulator such as a liquid crystal light valve or a tilting mirror device, and making illuminating light modulated by the spatial light modulator incident on a projection lens so that A projector that displays images by projecting illuminating light from a projection lens onto a screen or the like, and the present invention is a particularly useful technique for displaying moving images. Background technique [0002] Figure 18 It is figure explaining concept of conventional projector. The projector 1000 mainly includes: a light source 110 ; fly-eye lenses 1021 , 1022 ; an overlapping lens 1023 ; a parallelizing lens 140 ; ​​a light valve 151 ; [0003] The fly-eye lenses 1021 and 1022 are lens arrays in which microlenses having a rectangular outline are arranged in a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/10F21S2/00F21V5/00F21Y101/00G02B27/18G03B21/00G03B21/14H04N3/06H04N5/74H04N9/31
CPCH04N9/3197G03B21/14H04N9/3117H04N9/315G03B21/2073G03B21/208G03B33/12
Inventor 小岛英挥
Owner SEIKO EPSON CORP