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Light source, image apparatus using the light source, and method of driving the same

A technology of light source and light beam, which is applied in the field of light source and can solve problems such as deterioration of image quality

Inactive Publication Date: 2007-08-29
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Color break-up or rainbow effects cause image quality to deteriorate

Method used

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  • Light source, image apparatus using the light source, and method of driving the same
  • Light source, image apparatus using the light source, and method of driving the same
  • Light source, image apparatus using the light source, and method of driving the same

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Embodiment Construction

[0036] Matters defined in the specification, such as detailed structures and components, are provided to help comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions will be omitted for clarity and conciseness.

[0037] Referring to FIG. 4A, according to an exemplary embodiment of the present invention, a light beam must be output from a light source during a first scanning segment 41 and a second scanning segment 42 to create a complete screen image. A scan segment includes the same number of unit pixel segments 43 and horizontal or vertical pixels. In order to create an image of a pixel, three primary color light beams must be supplied from the light source at least once in the combination...

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Abstract

A light source (61) and an image apparatus which can reduce a rainbow effect and a color separation phenomenon in a pixel are provided. A different waveform is provided according to a color of the light source (61) and methods of driving the light source (61) and the image apparatus, respectively. The light source (61) outputs beams of one or two colors from among three primary colors in a corresponding pixel section (43 / 44) of a first scan section (41), in two scan sections (41,42) for generating an entire image composed of a plurality of pixel images, to generate each pixel image and outputs a beam or beams of the remaining color or colors among the three primary colors in a corresponding pixel section (43 / 44) of a second scan section (42). The image apparatus includes a light source (61), an optical modulation device (63) receiving beams from the light source (61) and modulating the received beam into image components, a reflector (64) receiving the image components from the optical modulation device (63) and scanning the received image components onto a screen (68), and a control unit (55) controlling the light source (61) to output beams of one or two colors among three primary colors in a corresponding pixel section (43 / 44) of a first scan section (41) and output a beam or beams of the remaining color or colors among the three primary colors in a corresponding pixel section (43 / 44) of a second scan section (42), wherein the first scan section (41) and the second scan section (42) are for generating an entire image composed of a plurality of pixel images.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2006-0018523 filed with the Korean Intellectual Property Office on February 25, 2006, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to a light source, an imaging device using the light source, and a method of driving the light source. More particularly, the present invention relates to a light source that performs a scanning operation twice to generate an entire image of a screen, an image forming apparatus using the light source, and a method of driving the light source. Background technique [0003] FIG. 1 shows the configuration of a conventional laser imaging device 10 . Referring to FIG. 1 , a conventional imaging device 10 includes a light source 11 and a first lens 12 that transforms a light beam output from the light source 11 so that the light beam is uniformly irradiated to a light modulation device 13 . The light modula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31G02F1/01
CPCH04N9/3164H04N9/3129A47H19/00A47H23/05A47H23/10
Inventor 李启薰赵虔皓
Owner SAMSUNG ELECTRONICS CO LTD
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