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Optical source colour-adjusting apparatus and method

A color-matching device and light source technology, applied in optics, optical components, instruments, etc., can solve problems such as color interference, charge-coupled device 600 sensitivity reduction, inconsistent output intensity, etc., and achieve the effect of saving time and cost

Inactive Publication Date: 2005-11-09
YUDONG PLASMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these sensors in the charge-coupled device 600 can not only sense a single primary color light, so there will be a frequency response situation in which colors interfere with each other
Therefore, the charge-coupled device 600 will produce differences in sensitivity to different colors, and because the scanning speed of the charge-coupled device 600 increases, the sensitivity of the charge-coupled device 600 will also decrease due to the decrease in exposure.
To sum up, the charge-coupled device 600 will also produce inconsistent output intensities of the three primary colors of red, green, and blue due to the aforementioned reasons.

Method used

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  • Optical source colour-adjusting apparatus and method
  • Optical source colour-adjusting apparatus and method
  • Optical source colour-adjusting apparatus and method

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Embodiment 1

[0044] image 3 It is a schematic side sectional view of an optical scanning module according to an embodiment of the present invention. The optical scanning module 1700 of the present invention mainly includes a light source 1100 , a mirror group 1400 , a lens group 1500 and an optical sensor, such as a Charge Coupled Device (CCD) 1600 . When scanning, the light source 1100 irradiates the document 1200 placed on the transparent plate 1300, and an image light 1110 is obtained through reflection (the light source 1100 is below the transparent plate 1300) or transmission (the light source 1100 is above the transparent plate 1300). The mirror group 1400 is composed of a plurality of mirrors (1401, 1402, 1403), and is arranged on the optical path of the image light 1110. The reflection is then transmitted to lens group 1500 . The lens group 1500 can receive the image light 1110 of the document 1200 transmitted by the mirror group 1400 and form an image on the CCD 1600 .

[0045...

Embodiment 2

[0049] refer to Figure 6 , is a schematic side view of the lens group of the optical scanning module according to the second preferred embodiment of the present invention. Similarly, the lens group 1500 is in the form of a single lens composed of multiple lenses (three lenses 1510, 1520, 1530 in the figure of this embodiment). In order to improve the known inconsistency in the output intensity of the red, green and blue primary colors of the final charge-coupled device 1600, in this embodiment, on a surface 1512 of one of the lenses 1510, a specific color is formed by, for example, vapor deposition. The light-transmitting coating 1540.

[0050] That is, if the final output intensity of the red light of the CCD 1600 is found to be insufficient after testing, the red light-transmitting coating 1540 is used to enhance the output performance of the light source 1100 in red light; if the CCD 1600 is found to be If the final output intensity of the green light is insufficient, us...

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Abstract

The invention uses the following steps to improve inconsistent phenomena of tricolor intensities output from charge coupling device (CCD) caused by different brightness of light source, different wavelength penetration rate of lenses and difference of light sensitivity of CCD. The steps include following methods: a retroreflection piece with desired color is added to the light source of the scanning module so as to form a coating with desired color on the lens; lenses can be dyed with a desired color or the light source is changed to desired color directly.

Description

technical field [0001] The present invention relates to a light source toning device, and in particular to a light source toning device applied to a light source of an optical scanning module. Background technique [0002] After the input, processing and processing of images has become a popular interest, the scanner has become one of the basic configurations of many computer users. It can scan text or image data of documents, magazines, books, pictures, etc. input into a computer and processed. Among all kinds of scanners, the flatbed scanner is the most commonly used one. In the flatbed scanner, the scanning module is installed under a transparent platform in a way that can be pulled back and forth to scan documents placed on the transparent platform. . And because the scanning module itself has no power, it needs transmission mechanisms such as servo motors, gears, belts, etc. to drive it. When using a flatbed scanner to scan a document, the document must be placed on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/10H04N1/04
Inventor 陈必铮
Owner YUDONG PLASMA TECH