GB2276016A - Transparency mounting - Google Patents
Transparency mounting Download PDFInfo
- Publication number
- GB2276016A GB2276016A GB9317358A GB9317358A GB2276016A GB 2276016 A GB2276016 A GB 2276016A GB 9317358 A GB9317358 A GB 9317358A GB 9317358 A GB9317358 A GB 9317358A GB 2276016 A GB2276016 A GB 2276016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transparency
- drum
- scanner
- locator
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
- H04N1/0804—Holding methods
- H04N1/0813—Holding sides of the sheet which are substantially parallel to the drum axis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/0657—Scanning a transparent surface, e.g. reading a transparency original
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
- H04N1/0804—Holding methods
- H04N1/0817—Holding sides of the sheet which are substantially perpendicular to the drum axis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
- H04N1/0804—Holding methods
- H04N1/0821—Holding substantially the whole of the sheet, e.g. with a retaining sheet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
- H04N1/083—Holding means
- H04N1/0839—Mechanical clamps, i.e. means for holding the sheet against the drum by mechanical force
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
- H04N1/083—Holding means
- H04N1/0865—Single holding means holding both ends of a sheet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
- H04N1/08—Mechanisms for mounting or holding the sheet around the drum
- H04N1/083—Holding means
- H04N1/0878—Holding means for holding a sheet adjacent an aperture on an opaque drum
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0404—Scanning transparent media, e.g. photographic film
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
A film transparency (7) is held by centrifugal force with its emulsion side in contact with the inside of the transparent drum (1) of a rotary drum scanner with base (2) used in a graphic reproduction process. A transparency locator in the form of either a resilient insert (4) or a resilient clip device (20) serves to hold the film transparency in position until the drum is rotating at a sufficiently high speed. The insert (4) has openings (5) with recesses (6) which hold the transparency in place, notch (10) of the insert engaging with a peg on the base to align the insert correctly when insert is mounted in drum (1) by squeezing insert and thus closing gap (9) of the insert. Clip (20) has gap (21) and finger receiving recesses (22) so that the clip can be closed and inserted in the drum (1). <IMAGE>
Description
TRANSPARENCY MOUNTING
This invention relates to the mounting of a film transparency in a graphic reproduction process and more particularly to a method of holding a film transparency in a rotary drum scanner, a transparency locator mountable within the drum of a rotary drum scanner, and to a rotary drum scanner provided with a transparency locator.
Modern methods of producing, for example, posters and other graphic works can require that a film transparency is electronically scanned and the information contained therein stored in digital form. A rotary drum scanner comprises a
transparent drum upon which the transparency is mounted and which is then rotated
at high speed. A reading head is then moved linearly with respect to the rotating drum
to capture the information in the transparency. Conventionally, the transparency is mounted extemally of the drum by means of adhesive tape with i the celluloid backing material of the film in contact with the drum. In order to reduce the well known
problem of Newtons rings, a variety of substances such as lacquer, anti-Newton ring
powder and, occasionally, special mounting oil are placed between the film and the
glass.
The known mounting methods are time consuming and can be messy.
According to one aspect of the invention a method of holding a film
transparency in a rotary drum scanner includes holding the film transparency with its
emulsion side in contact with the inside of the drum by centrifugal force as the drum
is rotated.
The problems associated with Newtons rings can be minimised by mounting the emulsion side of the film in contact with the drum to the extent that no special precautions are necessary. Furthermore, because the film is held by centrifugal force internally of the drum, this can mean that there is no need to use adhesive tape.
The method preferably includes retaining the film transparency in position within the drum before the drum is rotated. In this case the method preferably includes using a transparency locator mounted inside the drum to retain the transparency. The method may include using an insert within the drum as the transparency locator.
Alternatively the method may include using a clip device within the drum as the transparency locator.
According to another aspect of the invention a transparency locator is mountable within the drum of a rotary drum scanner and defines means for holding a film transparency in position until the drum is rotating at a sufficiently high speed for the transparency to be forced centrifugally into contact with the inside of the drum.
The transparency locator may comprise an insert of substantially cylindrical shape with a recess in its outermost surface within which the transparency can be placed, and an aperture within the recess to allow the image portion of the film transparency to be illuminated. Preferably means are provided for resiliently biasing the insert into engagement with the inside of the drum. In this case the insert may be formed from a resilient material as a generally cylindrical shape having a diameter slightly greater than an internal diameter of the drum, and the insert includes a longitudinally extensive gap to enable the insert to be resiliently contracted for insertion into the drum.
Alternatively the transparency locator may comprise a clip device for insertion inside the drum to hold one edge of the transparency against the inside of the drum.
Preferably the clip device includes at least one resiliently movable member for cooperating with the inside of the drum to define a nip which is less than the thickness of a transparency. In this case the resiliently movable member may be a head attached by a flexible stem to a base portion, whereby insertion of the edge of a transparency into the nip will resiliency deform the stem to hold the transparency in position. Alternatively the clip device may be a spring clip having a plurality of resiliently deformable fingers, and each finger is dimensioned to co-operate with the inside of the drum to define a nip which is less than the thickness of a transparency.
According to a further aspect of the invention a rotary drum scanner has a transparency cylindrical drum on which a film transparency is to be mounted for scanning, and a transparency locator mounted within the drum to hold a transparency in contact with the inside of the drum.
The transparency locator may be an axially-withdrawable insert of substantially cylindrical shape having at least one recess in its outermost surface for receiving a transparency, and an aperture within each recess for illuminating the transparency.
The outermost surface of the insert may be resiliently biased into engagement with the inside of the drum. Alternatively the insert may be generally cylindrical, with an outside diameter slightly greater than an intemal diameter of the drum, ana tormed for resilient contraction to enable its insertion into the drum. In this case the insert may have a longitudinal gap to facilitate the resilient contraction.
The transparency locator may alternatively be a clip device mounted inside the drum to hold at least one edge of a tranparency against the inside of the drum. The clip device may have at least one resiliently movable member for co-operating with the inside of the drum to define a nip which is less than the thickness of a transparency.
The resiliently movable member may be a head attached by a flexible stem to a base portion whereby insertion of the edge of a transparency into the nip will resiliently deform the stem to hold the transparency in position. Alternatively the clip device may be a spring clip having a plurality of resiliently deformable fingers, and each finger is dimensioned to co-operate with the inside of the drum to define a nip which is less than the thickness of the transparency.
The clip device may be located at the interface between the drum and a support base. It also may be located against axial movement relative to the drum.
The clip device is preferably removable from the drum to facilitate cleaning of the drum.
The invention will now be described, by way of example only, with reference to the accompanying diagrammatic drawings, in which:
Figure 1 is an exploded perspective view of part of a drum scanner and a transparency locator in the form of an insert;
Figure 2 is a partly schematic longitudinal sectional view through the assembly shown in Figure 1 in an assembled condition;
Figure 3 is a cross-sectional view taken on the line 3-3 in Figure 2;
Figure 4 is an exploded perspective view of part of a drum scanner and an
alternative transparency locator in the form of a clip device;
Figure 5 is a cross-sectional view through the insert shown in Figure 4;
Figure 6 is a cross-sectional view through part of the assembly shown in Figure 4 with the insert of Figure 5 shown in its operative position; and
Figures 7, 8 and 9 are cross-sections similar to Figure 6 but illustrating the use of different forms of clip device.
With reference to Figures 1 to 3, a conventional drum scanner comprises a substantially cylindrical transparent drum 1 formed from an optically finished transparent material. One end of the drum 1 is supported within a base 2. The drum is rotatable by a motor 3, or other suitable drive means. Although not shown in the accompanying drawings, known drum scanner apparatus include a light source mountable within the drum and a reading head disposed externally of the drum which is moved linearly as the drum is rotated. The drum is preferably removable from the accompanying apparatus for transparency mounting and cleaning purposes.
In accordance with the present invention a transparency locator, in the form of an insert 4 of generally cylindrical shape, includes a plurality, of circumferentially spaced through holes 5, six being shown. From Figure 3 it will be seen that the outer most surface of the insert 4 surrounding each of the holes 5 includes a recess 6 of at least equal area and thickness to that of a film transparency 7. Each hole 5 is dimensioned so as to correspond to the image portion 8 of the film transparency 7 to allow the image portion 8 to be illuminated.
The insert 4 is formed of a suitable resilient material and includes a
longitudinally extensive gap 9 to enable the insert to be resiliently contracted for
insertion into the drum. One or more notches 10 are provided to allow the insert to be aligned correctly within the drum 1 by means of a corresponding peg or pegs 11
provided in the base plate 2.
In use the insert 4 is squeezed so as to close the gap 9 and is then inserted
within the drum 1 until the pegs 11 engage with their respective notches 10. The film
transparencies 7 are then slid into the respective open ends 6a of the recesses 6 with
their emulsion, or gelatine, sides facing outermost. The insert 4 serves to prevent the
transparencies 7 from moving about until the drum is rotating at a sufficiently high
speed, typically between 600 and 2000 RPM, for the transparencies to be urged
outwardly and for their respective emulsion sides to be forced into contact with the inner most face of the drum.
Different inserts may be provided appropriate to the different types of film format available. The insert may be arranged such that the transparencies are firstly mounted on the insert, which is then placed within the drum.
As shown in Figure 4 an alternative transparency locator, in the form of a clip device 20, is formed from a resilient plastics material having a gap 21. Finger receiving recesses 22 are provided to enable the clip device 20 to be closed and inserted within the dmm, whereupon its inherent resilience urges it into contact with the inside of the drum. As shown in Figure 5, clip device 20 is a ring having recesses 23 formed in the inner and outermost surfaces so as to define a resiliently movable head portion 24 connected by a resilient stem 25 to a base portion 26. The radially outermost face 24a of the head portion 24 is radiused and is offset by a small amount relative to the corresponding face 26a of the base portion to define a nip 27 which is less than the thickness of a transparency.
Whilst the ring 20 is located at the base of the drum, as shown in Figure 6, the edge of a transparency 7 is inserted into the space between the outermost face 24a and the dmm 1. The radiused surface 24a and the offset 27 enables the lower most edge 7a of the transparency to be easily located against the uppermost surface 26b of the base portion. The transparency is then held by one edge 7b until the drum is rotating at a sufficiently high speed for the remainder of the transparency to be urged into contact with the inside of the drum.
Figures 7, 8 and 9 are generally similar to Figure 6 and equivalent components have been identified with the same reference numerals. In Figure 7 the clip device 20 has an enlarged end 30 which is located in a groove 31 formed in the drum 1. In this manner the clip device 20 is retained against unintentional axial withdrawal from the drum 1 but can be released for clearning by first detaching the drum 1 from its base 2. The clip device 20 may be formed as a complete ring of flexible material so that its rim 32 will deform to permit the edge of a transparency to be pressed into the nip. However, the rim 32 may be separated into a series of independently sprung fingers.
Figure 8 illustrates a clip device 20 formed by a series of fingers 33 formed integral with a disc 34 which is detachably secured in any convenient manner to the base 2.
Figure 9 illustrates a different clip device 20 formed as a curled ring, as shown, which may be located in any convenient manner to be detachable for cleaning.
Claims (28)
1. A method of holding a film transparency in a rotary drum scanner, including
holding the film transparency with its emulsion side in contact with the inside
of the drum by centrifugal force as the drum is rotated.
2. A method, according to Claim 1, including retaining the film transparency in
position within the drum before the drum is rotated.
3. A method, according to Claim 2, including using a transparency locator
mounted inside the drum to retain the transparency.
4. A method, according to Claim 3, including using an insert within the drum as
the transparency locator.
5. A method, according to Claim 3, including using a clip device within the drum
as the transparency locator.
6. A method of holding a film transparency in a rotary drum scanner, substantially
as described with reference to the accompanying drawings.
7. A transparency locator which is mountable within the drum of a rotary drum
scanner and defines means for holding a film transparency in position until the drum is rotating at a sufficiently high speed for the transparency to be forced
centrifugally into contact with the inside of the drum.
8. A transparency locator, according to Claim 7, comprising an insert of
substantially cylindrical shape with a recess in its outermost surface within
which the transparency can be placed, and an aperture within the recess to
allow the image portion of the film transparency to be illuminated.
9. A transparency locator, according to Claim 8, including means for resiliently
biasing the insert into engagement with the inside of the drum.
10. A transparency locator, according to Claim 8, in which the insert is formed from
a resilient material as a generally cylindrical shape having a diameter slightly
greater than an internal diameter of the drum, and the insert includes a
longitudinally extensive gap to enable the insert to be resiliently contracted for
insertion into the drum.
11. A transparency locator, according to Claim 7, comprising a clip device for
insertion inside the drum to hold one edge of the transparency against the
inside of the drum.
12. A transparency locator, according to Claim 11, in which the clip device includes
at least one resiliently movable member for co-operating with the inside of the
drum to define a nip which is less than the thickness of a transparency.
13. A transparency locator, according to Claim 12, in which the resiliently movable
member is a head attached by a flexible stem to a base portion, whereby
insertion of the edge of a transparency into the nip will resiliently deform the
stem to hold the transparency in position.
14. A transparency locator, according to Claim 11, in which the clip device is a
spring clip having a plurality of resiliently deformable fingers, and each finger
is dimensioned to co-operate with the inside of the drum to define a nip which
is less than the thickness of a transparency.
15. A transparency locator mountable within the drum of a rotary drum scanner,
substantially as described with reference to the accompanying drawings.
16. A rotary drum scanner having a transparency cylindrical drum on which a film
transparency is to be mounted for scanning, and a transparency locator
mounted within the drum to hold a transparency in contact with the inside of the
drum.
17. A scanner, according to Claim 16, in which the transparency locator is an
axially-withdrawable insert of substantially cylindrical shape having at least one
recess in its outermost surface for receiving a transparency, and an aperture
within each recess for illuminating the transparency.
18. A scanner, according to Claim 17, in which the outermost surface of the insert
is resiliently biased into engagement with the inside of the drum.
19. A scanner, according to Claim 17, in which the insert is generally cylindrical,
with an outside diameter slightly greater than an intemal diameter of the drum,
and formed for resilient contraction to enable its insertion into the drum.
20. A scanner, according to Claim 19, in which the insert has a longitudinal gap to
facilitate the resilient contraction.
21. A scanner, according to Claim 16, in which the transparency locator is a clip
device mounted inside the drum to hold at least one edge of a transparency
against the inside of the drum.
22. A scanner, according to Claim 21, in which the clip device has at least one
resiliently movable member for co-operating with the inside of the drum to
define a nip which is less than the thickness of a transparency.
23. A scanner, according to Claim 22, in which the resiliently movable member is
a head attached by a flexible stem to a base portion whereby insertion of the
edge of a transparency into the nip will resiliently deform the stem to hold the
transparency in position.
24. A scanner, according to Claim 21, in which the clip device is a spring clip
having a plurality of resiliently deformable fingers, and each finger is
dimensioned to co-operate with the inside of the drum to define a nip which is
less than the thickness of the transparency.
25. A scanner, according to any of Claims 21 to 24, in which the clip device is
located at the interface between the drum and a support base.
26. A scanner, according to Claim 25, in which the clip device is located against
axial movement relative to the drum.
27. A scanner, according to any of Claims 21 to 26, in which the clip device is
removable from the drum to facilitate cleaning of the drum.
28. A rotary drum scanner having a transparency locator substantially as described
with reference to the accompanying drawings.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/206,819 US5574578A (en) | 1993-03-10 | 1994-03-07 | Method and apparatus for holding a film transparency in a rotary drum scanner |
JP3869694A JPH06350809A (en) | 1993-03-10 | 1994-03-09 | Transparent picture mounting device |
DE4407920A DE4407920A1 (en) | 1993-03-10 | 1994-03-09 | Mounting of transparencies |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939304851A GB9304851D0 (en) | 1993-03-10 | 1993-03-10 | Transparency mounting |
GB939316683A GB9316683D0 (en) | 1993-03-10 | 1993-08-11 | Transparency mounting |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9317358D0 GB9317358D0 (en) | 1993-10-06 |
GB2276016A true GB2276016A (en) | 1994-09-14 |
GB2276016B GB2276016B (en) | 1996-12-04 |
Family
ID=26302559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9317358A Expired - Fee Related GB2276016B (en) | 1993-03-10 | 1993-08-20 | Mounting film transparencies in a rotary drum scanner |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2276016B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2328829A (en) * | 1997-08-28 | 1999-03-03 | Icg Ltd | Mounting transparencies in a rotary drum scanner |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1391019A (en) * | 1972-10-13 | 1975-04-16 | Perkin Elmer Corp | Scanning apparauts |
GB1592598A (en) * | 1976-12-24 | 1981-07-08 | Heimo E | Holder for light transmitting images |
GB2197964A (en) * | 1986-06-02 | 1988-06-02 | Michael J C Little | Improved method and apparatus for mounting transparencies in laser scanning apparatus |
-
1993
- 1993-08-20 GB GB9317358A patent/GB2276016B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1391019A (en) * | 1972-10-13 | 1975-04-16 | Perkin Elmer Corp | Scanning apparauts |
GB1592598A (en) * | 1976-12-24 | 1981-07-08 | Heimo E | Holder for light transmitting images |
GB2197964A (en) * | 1986-06-02 | 1988-06-02 | Michael J C Little | Improved method and apparatus for mounting transparencies in laser scanning apparatus |
Non-Patent Citations (1)
Title |
---|
B. Coe, The History of Movie Photography, published 1981, Ash and Grant, p 32. * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2328829A (en) * | 1997-08-28 | 1999-03-03 | Icg Ltd | Mounting transparencies in a rotary drum scanner |
WO1999012340A1 (en) * | 1997-08-28 | 1999-03-11 | Icg Limited | Mounting film transparencies in a rotary drum scanner |
GB2328829B (en) * | 1997-08-28 | 2000-04-05 | Icg Ltd | Mounting film transparencies in a rotary drum scanner |
Also Published As
Publication number | Publication date |
---|---|
GB2276016B (en) | 1996-12-04 |
GB9317358D0 (en) | 1993-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee | ||
728V | Application for restoration filed (sect. 28/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
728Y | Application for restoration allowed (sect. 28/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20070820 |