CN1355451A - Photography and reproduction technique for transmission-type true colour hologram - Google Patents
Photography and reproduction technique for transmission-type true colour hologram Download PDFInfo
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- CN1355451A CN1355451A CN 00128059 CN00128059A CN1355451A CN 1355451 A CN1355451 A CN 1355451A CN 00128059 CN00128059 CN 00128059 CN 00128059 A CN00128059 A CN 00128059A CN 1355451 A CN1355451 A CN 1355451A
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Abstract
A photographic and reproduction technique for the transmission-type genuine colour hologram is disclosed. According to colour level of the object to be taken up, red, green and blue laser beams or red and green laser beams are used to record the colour information of the said object on a same holographic record material and at same time by different beams in different directions. When it is reproduced, the same laser beams are used to radiate the hologram in their original directions, so reproducing original genuine colours. Its advantages include high-brightness reproduction, high sensitivity and large size.
Description
The present invention relates to a kind of shooting and reproducing technology of transmission-type true colour hologram, belong to laser technology, holography and camera work field.
Traditional transmission hologram art is to take and reproduction with one-wavelength laser, therefore can not obtain the reproduction picture of true color, according to applicant's retrieval, finds the report with the described method shooting of the application transmission-type true colour hologram as yet.And close with it technology is a reflection-type true color holographic technique.Take the photograph the transmission-type true colour hologram technique for taking relatively with of the present invention, the thing light and the reference light ratio of reflection-type true color holographic technique can not be regulated, and the object not high to reflectivity is difficult to obtain the reproduction picture of high brightness; Reflection-type true color holographic technique reaches more than 5000 lines per millimeters the resolution requirement height of hologram recording material, makes the recording materials exposure sensitivity very low, is difficult for taking large-sized hologram; Because the illumination of object was difficult to regulate when reflection-type true color holographic technique was taken, the look when adding white light reconstruction is harassed and color blurring, is difficult to obtain big clearly depth of field true color and reproduces picture.
The objective of the invention is to overcome the deficiency of prior art, and provide a kind of thing light and reference light ratio to save, the object not high to reflectivity, the reproduction picture of high brightness is easy to get, recording materials exposure sensitivity height is easily taken the shooting and the reproducing technology of the transmission-type true colour hologram of large-sized hologram.
The present invention adopts Multi Colour Lasers to take the technology of color body hologram and the technology of the true color holographic images of reproducing object; That is: look the degree of enriching of subject color, with red, green, blue three look laser or red, green dichromatism laser the chromatic information of object is taken on same hologram recording material simultaneously with different reference lighies, allow the three beams reference light along different angle directive recording mediums during record, use three beams identical or two bundle laser separately along original incident direction irradiation hologram during reproduction, promptly can observe the reproduction picture of true color with the recording laser wavelength.
Accompanying drawing 1 is the shooting synoptic diagram of transmission-type true colour hologram.
Accompanying drawing 2 is the reproduction synoptic diagram of transmission-type true colour hologram.
The invention will be further described (embodiment) below in conjunction with accompanying drawing:
1. the shooting of transmission-type true colour hologram (referring to accompanying drawing 1):
1. arrange light path with red, green, blue three look laser by the index path shown in the accompanying drawing 1, during layout with red, green,
Blue three look laser uniformly illuminations, the red, green, blue three look reference lighies in the reference light light path are with different incidents
The angle is shone to hologram sheet;
2. use three look laser illuminated objects simultaneously, the three look reference lighies hologram sheet H that throws light on simultaneously notes the three looks letter of object
Breath through aftertreatment, obtains a transmission-type true colour hologram.
2. the reproduction of transmission-type true colour hologram (referring to accompanying drawing 2):
With the laser same,, promptly can be observed the reproduction picture of true color separately along original incident direction irradiation hologram with writing down the reference light wave appearance.
The present invention compared with prior art has following advantage:
1. the true colour hologram that can adapt to the different reflectivity object is taken. Owing to can transfer according to the brightness of reproducing picture Joint thing light and reference light ratio to various shot object, can obtain the reproduction picture of optimal brightness.
2. below 3000 lines per millimeters, the recording materials exposure sensitivity improves two to three times than reflection-type to the transmission-type true colour holographic technique to the resolution requirement of hologram recording material, takes the hologram of large-size easily.
3. owing to adopt laser reconstruction, the reproduction picture of transmission-type true colour hologram can have the very big depth of field, produces tangible three dimensions visual effect.
4. for the color error ratio that reproduces picture, can correct the difficulty of color matching in having reduced to take by the illumination of adjusting reconstruction beam.
5. provide freedom of creation degree more flexibly for the true color holography.
6. the progressively popularization in the red, green, blue laser application field little along with volume, that output power is big, moderate, can expand the range of application of true color holographic technique greatly, for example the true color hologram display of valuables or historical relic, color hologram artistic work, the holographic advertising lamp box of true color etc.
Claims (1)
- A kind of shooting of transmission-type true colour hologram and reproducing technology is characterized in that technology that adopts Multi Colour Lasers to take the color body hologram and the technology of reproducing the true color holographic images of object; Promptly look the degree of enriching of subject color, with red, green, blue three look laser or red, green dichromatism laser the chromatic information of object is taken on same hologram recording material simultaneously with different reference lighies, allow the three beams reference light along different angle directive recording mediums during record, use three beams identical or two bundle laser separately along original incident direction irradiation hologram during reproduction, promptly can observe the reproduction picture of true color with the recording laser wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00128059 CN1355451A (en) | 2000-11-27 | 2000-11-27 | Photography and reproduction technique for transmission-type true colour hologram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00128059 CN1355451A (en) | 2000-11-27 | 2000-11-27 | Photography and reproduction technique for transmission-type true colour hologram |
Publications (1)
| Publication Number | Publication Date |
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| CN1355451A true CN1355451A (en) | 2002-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00128059 Pending CN1355451A (en) | 2000-11-27 | 2000-11-27 | Photography and reproduction technique for transmission-type true colour hologram |
Country Status (1)
| Country | Link |
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| CN (1) | CN1355451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1983080B (en) * | 2005-12-13 | 2011-04-13 | 大日本印刷株式会社 | Fabrication process of image-switching type hologram, and image-switching type hologram fabricated by that process |
| CN103995454A (en) * | 2014-05-16 | 2014-08-20 | 北京理工大学 | Real-time 3D color holographic display method for single spatial light modulator |
-
2000
- 2000-11-27 CN CN 00128059 patent/CN1355451A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1983080B (en) * | 2005-12-13 | 2011-04-13 | 大日本印刷株式会社 | Fabrication process of image-switching type hologram, and image-switching type hologram fabricated by that process |
| CN103995454A (en) * | 2014-05-16 | 2014-08-20 | 北京理工大学 | Real-time 3D color holographic display method for single spatial light modulator |
| CN103995454B (en) * | 2014-05-16 | 2017-01-04 | 北京理工大学 | A kind of single spatial light modulator realizes the method that color hologram real-time three-dimensional shows |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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