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A mechanical field scan display

A display and field scanning technology, applied in the direction of instruments, optics, electrical components, etc., can solve the problems of inability to display images, high manufacturing costs, image distortion, etc., and achieve good display effect, long service life, and good focus

Inactive Publication Date: 2016-02-24
周裕佳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the multi-faceted mirror drum for line scanning has 16 sides, in order to achieve the image effect of ordinary TV, its rotating speed needs to reach 60,000 revolutions per minute, and it requires very high stability. At the same time, the distance between the field mirror drum and the line mirror drum It is also necessary to maintain a very strict synchronization, otherwise the image will be distorted or even unable to display the image
In this way, the requirements on the motor are quite high, and it needs to be equipped with a complex servo circuit, which makes the manufacturing cost very high

Method used

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  • A mechanical field scan display
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] see figure 1 , figure 2 , the mechanical field scanning display includes a display and a light source 1, and it also includes a motor 2 and a driven wheel 3, and the motor 2 and the driven wheel 3 are driven and connected by a conveyor belt 4; a reflector 5 is arranged in the beam emitting direction of the light source 1 The conveyor belt 4 is provided with a reflective surface assembly with field scanning; the light beam emitted by the spot light source 1 passes through the reflective mirror 5 and the reflective surface assembly with field scanning to the display.

[0015] Specifically, the light source 1 is arranged on one side of the conveyor belt 4, and is composed of a strip-shaped high-brightness LED tube; the reflector 5 is strip-shaped, and is provided with a 45-degree reflective surface corresponding to the light beam emitted by the li...

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Abstract

Disclosed is a mechanical field scanning display including a display and a light source. The mechanical field scanning display further includes a motor and a driven wheel which are in drive connection through a conveyor belt. A reflector is disposed in a beam emission direction of the light source. A reflective surface component with field scanning is disposed on the conveyor belt. A line beam emitted by the condensed light source is reflected on the display through the reflector and the reflective surface component with field scanning. Through the above structural improvement, the line scanning of the display is completed by the strip high-brightness LED line beam light source, and the field scanning of the display is completed by two sub-reflecting surfaces driven by a motor and fixed on the conveyor belt. Compared with the prior art, the mechanical field scanning display uses a mechanical drive manner to complete field scanning, thereby greatly simplifies the structure of the display; and uses a high-brightness LED as the light source, thereby enabling good focusing and high brightness of displayed image-texts on the display, effectively reducing the power of the whole machine, improving the service life, expanding the range of application and improving practicality.

Description

technical field [0001] The invention relates to a display, in particular to a mechanical field scanning display. Background technique [0002] Not long after the advent of laser technology, someone proposed that the laser beam be reflected by two rotating reflective polygonal prisms called "polygonal mirror drums" to realize a large-screen projection display scheme. This scheme has a multi-faceted mirror drum that completes field scanning and A multi-faceted mirror drum that completes line scanning. Every time the line mirror drum rotates through a mirror is equivalent to scanning a line, and every time the field mirror drum rotates through a mirror, it is equivalent to scanning a field. These two mirror drums cooperate to continuously rotate to form a scanning grating. When the multi-faceted mirror drum for line scanning has 16 sides, in order to achieve the image effect of ordinary TV, its rotating speed needs to reach 60,000 revolutions per minute, and it requires very hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/04G02B26/10G02B26/12
Inventor 郑天祥
Owner 周裕佳