Horology: time measuring systems or devices – Displays or display device details
Reexamination Certificate
1999-01-20
2001-04-17
Miska, Vit (Department: 2859)
Horology: time measuring systems or devices
Displays or display device details
C368S228000, C368S229000, C368S079000, C353S046000
Reexamination Certificate
active
06219306
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATION
This application relates to Disclosure Document No. 411798 received by Patent Office on Jan. 24, 1997 and filed by Applicant.
BACKGROUND OF THE INVENTION
The invention relates to spectral light projecting devices onto a viewing surface, and more specifically, to devices for projecting a spectral display, that is in a motion to create or form a dynamic spectral display or an image of it, on the viewing surface.
The device is made up of spectral light projecting segments attached to rotatable hollow shafts, which are mounted and rotating on coaxial based shaft, and thus composing rotating spectral projecting segments. Each rotating segment provides built in electrical wiring and a connection to energize a light emitting source, and also mechanical power to effect a rotating motion of the projecting segment. The projecting part of the rotating segment includes the light emitting source for projecting the light rays onto diffraction means such as a prism or diffraction gratings to cause a spectral dispersion of the light rays for projecting the same onto the viewing surface to create spectral display in the motion or the dynamic spectral display.
There are devices for projecting the spectral display, but they do not provide a novel improvement of the invention herein introduced.
The U.S. Pat. No. 5,247,491 issued on Sep. 21, 1993 disclosed the spectral display, which is based on a static arrangement of the projecting segments, and the presently proposed modification is quite different or unique, and was not indicated in the former patents at all.
Essentially, none of the prior art discloses proposed herein a new design of the projecting spectral display, wherein the spectral projecting segments are connected or integrated with the rotating motion means.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a device for projecting spectral display, that is in a motion or a dynamic spectral display onto a viewing surface, which is not accomplished by the prior art devices.
Another object of the present invention is to provide a device for projecting spectral display, having at least three coaxially rotating projecting segments, this is able to create a spectral image of a clock's dial on a viewing surface.
A further object of the present invention is to provide a spectral display in the motion as indicated above, wherein the device has a number of spectral projecting segments accommodated on coaxial rotating shafts to create an artistic or abstract dynamic spectral display.
Yet another object of the present invention is to provide a device as described above, wherein a number of coaxially combined projecting segments with different spatial orientation are projecting a dynamic spectral display onto the viewing surface.
Another object of the present invention is to provide a device, which is simple to manufacture and is economically affordable.
And yet another object of the present invention is to provide a device for projecting dynamic spectral display, which is embodying a practical, useful function with esthetic merits.
Accordingly to the present invention, the device for projecting the spectral display in the motion or the dynamic spectral display, is comprising of many spectral projecting segments each attached to a rotating hollow shaft mounted together and rotating in a coaxial manner.
Each projecting segment of the device includes, a light emitting source to produce light rays, light convergent means such as a condensing lens, and diffraction means such as a prism or diffraction gratings to effect spectral dispersion or diffraction of the light rays for projecting same onto a surface exposed to viewing or simply, a viewing surface.
The rotating hollow shafts provide built-in electrical wiring tracks and electricity conductive rings connected to electrical brushes to enable to energize the light source while it is in the rotating motion. The rotating shafts are powered and driven by the device's controlling mechanism through a geared wheel. An outside electrical power is supplied through an electrical socket accommodated in the a casing or housing of the device.
In a preferred embodiment, the device in a clock, with the projecting segments arranged in relative and corresponding order to each other and rotating in coaxial manner to project a desired time display onto the viewing surface. The clock's like spectral display, has a particular structure of three coaxially rotating spectral projecting segments, so that energizing their respective light sources provides a second indicating hand, a minute indicating hand and an hour indicating hand of the spectral time display.
In another embodiment, the device having many projecting segments arranged as described above, combined and acting together with projecting segments of different spatial orientation in relationship to each other, is projecting the dynamic spectral display or the variety of it.
REFERENCES:
patent: 2694338 (1954-11-01), Moultry et al.
patent: 4217040 (1980-08-01), Longerbeam
patent: 5160950 (1992-11-01), Niizawa
patent: 5247491 (1993-09-01), Kwiatkowski
patent: 5253000 (1993-10-01), Stoeckner
patent: 5550605 (1996-08-01), Haraguchi et al.
patent: 36946 (1981-10-01), None
Goodwin Jeanne-Marguerite
Miska Vit
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