Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
38 words
A hologram viewing apparatus, characterised by a housing (20) enclosing a light source (21) which illuminates a screen located in or on a wall of the housing (20), the screen consisting of at least a plane grating (28).
Claim 2
Dependent Claim
38 words
A hologram viewing apparatus, characterised by a housing (20) enclosing a light source (21) which illuminates a screen located in or on a wall of the housing (20), the screen consisting of at least a plane grating (28).
Claim 3
Dependent Claim
17 words
Apparatus as claimed in claim 1, characterised in that the screen includes a venetian blind film (27).
Claim 4
Dependent Claim
20 words
Apparatus as claimed in claim 2, characterised in that the grating (28) is embossed onto the venetian blind film (27).
Claim 5
Dependent Claim
13 words
Apparatus as claimed in any preceding claim in combination with a embossed hologram.
Claim 6
Dependent Claim
16 words
Apparatus as claimed.in any of claims 1 to 4 in combination with a thick film hologram.
Claim 7
Dependent Claim
30 words
Apparatus as claimed in any preceding claim, characterised in that the housing (20) has an external configuration emulating that of a conventional microscope and that the apparatus includes an eyepiece.
Claim 8
Dependent Claim
36 words
Apparatus as claimed in any of claims 1 to 5, characterised by an additional venetian blind film, which film is held spaced apart from the screen and the slats of which are perpendicular to the screen.
Claim 9
Dependent Claim
28 words
Apparatus as claimed in any of claims 1 to 4, characterised in that the screen comprises mask or filter means for the reconstruction of multicolour surface relief holograms.
Claim 10
Dependent Claim
36 words
A integral direct viewing hologram device, characterised by a venetian blind film (10) having a hologram (11) embossed or bonded onto one surface and a plane grating (13) embossed on or bonded onto the other surface.
Claim 11
Dependent Claim
36 words
A integral direct viewing hologram device, characterised by a venetian blind film (10) having a hologram (11) embossed or bonded onto one surface and a plane grating (13) embossed on or bonded onto the other surface.
Claim 12
Dependent Claim
34 words
A device as claimed in claim 9, characterised in that two or more holograms (11, 12) made in different coloured lights are provided on the said one surface of the venetian blind film (10).
Claim 13
Dependent Claim
21 words
A device as claimed in claim 10, characterised by mask or filter means for the reconstruction of multicolour surface relief holograms.
Claim 14
Dependent Claim
25 words
An article useful in the manufacture of hologram devices characterised by a venetian blind film (10) embossed on one side with a plane grating (13).
Claim 15
Dependent Claim
25 words
An article useful in the manufacture of hologram devices characterised by a venetian blind film (10) embossed on one side with a plane grating (13).
Claim 16
Dependent Claim
21 words
An article as claimed in claim 12, characterised by mask or filter means for the reconstruction of multicolour surface relief holograms.