Holography is considered as one of the most remarkable discoveries in modern times. Nevertheless for its first decades it seems to be getting forgotten.

Originally stepped up back at the end of the 1940s to improve electron microscopy, it can not fulfill this function and the wish of its discoverer hungarian-british physicist Dennis Gábor. Due to sources of pure coherent light, which are indispensable for optical holography, being not yet available, not even Gábor himself can locate a field of application for this phenomenon. He can neither recognize at that point of time the meaning and the potential of his discovery and with it the influence this new medium would have on our daily lives one day. Nor can he imagine the plenty of phantasms emerging from this phenomenen. Phantasms, which seem to be mostly one step ahead of applied holography.

With the discovery of laser light at the beginning of the 1960s, for the first time ever it becomes possible to record and reconstruct a real three-dimensional image of an object. What once simply starts as a little rainbow coloured picture of a toy train, today finds its applications in a vast variety of different optical and acoustical fields.

It is as remarkable as the phenomenon of holography itself, that it could never prevail as a popular medium like movie, TV, radio, the internet, print media, etc. Especially when keeping in mind all the phantasmatic stories which emerge from this medium. A lot of dreams, hopes and promises that holography never made by itself, but some of them is trying to keep.

blog.holographie.eu accompanies my scientific work on holography, which would like to give holography an attention, that elsewhere is mostly refused to it. It is of course initially interested in based techniques and technologies of holography and how it works. Moreover it is also interested in these upcoming phantasms and their stories arising from possible abilities of holography. Especially against the backdrop of holography seems to be reaching a point, where its possibilities and abilities catch phantasms.

This blog would like to serve as a sketch book for unprotected ideas, of which some maybe become expanded, while others are not haunted any further, but wants to be told and should not be unmentioned forgotten.


please visit also www.holographie.eu

2010-03-17

Holography and settling technologies: Interdependency and ambivalent behaviour

After introducing the concept of touchable holography and its applied technologies hand tracking and airborne ultrasound tactile display, the following entry would like to regard this ensemble as a dispositiv and take a look at relation, behaviour and interaction between original holographic phenomenon and added technologies.

These two added technologies behave in an ambivalent manner, unselfish and parasitical to the same extend.
Airborne ultrasound tactile display and hand tracking put themself into service of holography, which is getting abilities, that without their support holography would not be able to accomplish. Only the positioning of additional technologies enhances the reality of a 3D virtual object. It is no longer just the eye as a witness of the object's existence. The eye's testimony gets confirmation by the sensation of touch onto the user's hand. In this process it doesn't matter if these two impressions are not received from one and the same device as a common source, as long as synchronization of their impulses is fine tuned.
The enhancement of reality is not limited just to proofing the existence of a virtual object. It also leads to new fields of applications, which require tactile feedback to make them work. Therewith settling technologies are not simply opening holography gates to new scopes, but are much more precursors of new phantasms. Regarding original holography technologies, it looks that their abilities are mostly exhausted. It can no longer keep up with all the promises, that it never made by itself. Not just to survive as a medium, but to evolve and not becoming forgotten again and as the basis for further hopes, dreams and wishes, holography is reliant to other technologies, gathering around and helping to embark to new visions.

Settling technologies do not just serve, but also behave parasitical. They (ab)use holography for their part to find application, to survive and to evolve. This remains valid for both technologies, hand tracking and airborne ultrasound tactile display. Even maybe for one a little more and for the other a little less.

In reverse also holography behaves in the same way. Part unselfish, part parasitical. It should not be about an estimation who's taking greatest advantage. It is much more about an interdependency, which this entry want to illustrate.


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