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

Image projecting apparatus

a projector and projector technology, applied in the field of image projectors, can solve the problem of not achieving compact rear projection tvs, and achieve the effect of less height spa

Inactive Publication Date: 2005-08-04
SAMSUNG ELECTRONICS CO LTD
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012] Accordingly, it is an aspect of the present invention to provide an image projecting apparatus that uses a reflective mirror to vary a length of an optical path and thus require less space in height.

Problems solved by technology

As a result, a compact-sized rear projection TV is not achieved.

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
  • Image projecting apparatus
  • Image projecting apparatus
  • Image projecting apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0023]FIG. 3 is a view showing an image projecting apparatus according to a preferred embodiment of the present invention.

[0024] Referring to FIG. 3, the image projecting apparatus 300 according to the present invention includes a light source 310, a color filter wheel 320, a square beam generator 330, a first lens group 340, a first reflective mirror 350, a second lens group 360, a second reflective mirror 370, a third lens group 380, a prism 385, a digital micromirror device (DMD) panel 390 and a projection lens system (not shown).

[0025] The light source 310 irradiates a white light, which is a mixture of plural monochromatic lights, for example, red (R), green (G) and blue (B) monochromatic lights. As for the light source 310, a laser, a mercury lamp, a metal halide lamp, a halogen lamp and xenon lamp may be used.

[0026] The color filter wheel 320 is divided into r...

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

PropertyMeasurementUnit
aspect ratioaaaaaaaaaa
angleaaaaaaaaaa
tilting angleaaaaaaaaaa
Login to View More

Abstract

Disclosed is an image projecting apparatus having two reflective mirrors. In an image projecting apparatus which forms a desired image on a digital micromirror panel (DMD) by projecting a ray of light from a light source thereonto, the surface parallel with the longer side of the movable mirror surface of the DMD panel and vertical to the movable mirror surface is parallel with the optical axis of the light source. The first reflective mirror reflects the ray of light from the light source at a predetermined angle, and the second reflective mirror is arranged to face the first reflective mirror and reflect the reflective light from the first reflective mirror to fall incident on the movable mirror surface of the DMD panel. The distance from the center of the DMD panel to the optical axis is minimized, and as a result, the overall height of the image projecting apparatus is reduced.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This is a Continuation Application under 37 C.F.R. § 1.53(b) of U.S. application Ser. No. 10 / 619,570 filed Jul. 16, 2003, which claims priority from Korean Patent Application No. 10-2002-0041519 filed in the Republic of Korea on Jul. 16, 2002; the disclosures of which are incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates to an image projecting apparatus, and more particularly, to an image projecting apparatus having a plurality of reflective mirrors to vary an optical path, and thus requires less space in height for the body thereof where necessary parts are arranged. DESCRIPTION OF THE RELATED ART [0003] Following an ever-increasing demand for a large screen with high picture quality, the supply of image projecting apparatus has been increasing. The image projecting apparatus uses a projection lens to magnify a small image and then projects it in a large image. Generally, the image projecting ...

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(United States)
IPC IPC(8): G02F1/1335H04N5/74
CPCH04N5/7458G02F1/1335
Inventor JEON, KEE-UK
Owner SAMSUNG ELECTRONICS CO LTD