CA2153359C - Slide mount - Google Patents
Slide mountInfo
- Publication number
- CA2153359C CA2153359C CA002153359A CA2153359A CA2153359C CA 2153359 C CA2153359 C CA 2153359C CA 002153359 A CA002153359 A CA 002153359A CA 2153359 A CA2153359 A CA 2153359A CA 2153359 C CA2153359 C CA 2153359C
- Authority
- CA
- Canada
- Prior art keywords
- film
- mount
- cover
- slide
- screen
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/765—Photosensitive materials characterised by the base or auxiliary layers characterised by the shape of the base, e.g. arrangement of perforations, jags
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
A film cut into a screen is correctly and easily fitted onto a slide mount. For this purpose, the slide mount is formed by joining a mount and a cover together, and windows are opened in the central portions of the mount and the cover, respectively. A film-placing portion is provided surrounding the window of the mount, and positioning pins are studded at four corners of the film-placing portion so as to be corresponded to engaging holes at both side portions of the film. Positioning holes are perforated in the periphery of the window of the cover at positions opposed to the positioning pins. The film is placed on the film-placing portion, and the positioning holes of the cover are brought into engagement with the positioning pins of the mount while the cover is being depressed onto the film. Then, the engaging holes of the film engage with the positioning pins, and the film is correctly fitted onto the slide mount.
Description
21~3359 -Title of the Invention:
,. SLIDE MOUNT
BackgrQund of the Invention:
The present invention relates to a slide mount and, particularly, to a slide mount onto which can be correctly fitted a film that is cut into individual screens.
Description of the Prior Art:
A conventional slide mount will ~e described with reference to Fig. 6 wherein reference numeral 1 denotes a slide mount which is made of, for example, a plastic material. The slide mount 1 is constituted by a mount 2 and a cove-r 3, and the mount 2 is provided with a film-placing portion 4 which has a size nearly equal to that of a screen and further has a step with respect to the surface of the mount 2. At the center of the film-placing portion is opened a window 5. Furthermore, recessed portions 6, 6, --- are formed in the periphery of the film-placing portion 4, and the outer peripheries of the recessed portions 6, 6, --- are formed in a protruding manner.
A window 7 is formed in the cover 3, and protruded portions 8, 8, --- are provided on the periphery of the window 7. By fitting the protruded portions 8, 8, --- into the recessed _ portions 6, 6,,--- of the mount 2, the mount 2 and the cover 3 are fi~rmly fitted together; i.e., the window 5 and the window 7 are superposed one upon the other to form the slide mount 1.
The film 9 that is cut into a unit of screen is placed on the film-placing portion 4 and, then, the mount 2.and the cover 3 are fitted together so that the film 9 is fitted onto the slide mount 1.
In the conventional slide mount, the size of the film-placing portion in the direction of width is set to be in aqreement with a specified value of the commercially available film, i.e., 35 mm. Therefore, the film that is cut into a screen is correctly placed in position in the direction of width thereof due to the step formed in the film-placing portion and the outer peripheries of the recessed portions. On the other 21S~35~
' hand, the film is cut by hand along the gap portions among the screen~ by using a pair o~ scissors. It is therefore difficult to cut the film into a predetermined size in the lengthwise direction thereof. Therefore, the ~ilm-placing portion in the lenqthwise direction thereof has been set to a size which is larger than the size of a screen. Accordingly, the film that is inserted in the slide mount has a margin in the lengthwise direction and may undergo a deviation in position.
Moreover, if the window in the slide mount has a size equal to the size of the screen of the film, then, the end of the film becomes in short of contact with the window when the size of the film is short in the lengthwise direction thereof, causing light to leak. If the size of the window is selected to be smaller than the size of the screen in order to solve the above defect, on the other hand, there arouses another problem in that the window and the end of the screen are superposed causing_the screen to be partly missing.
Thus, there arouses a technical problem in regard to correctly and easily fitting a screen of film onto the slide mount without causing the screen to be missing. The object of the present invention is to solve this problem.
Summary of the Invention:
_ The present invention was proposed in order to achieve the above obgéct, and provides a slide mount for pro~ecting a slide film one screen by one screen by using a slide device, wherein said slide mount is constituted by a mount and a cover, windows are formed at the central portions of the mount and the cover, respectively, a film-placing portion is formed surrounding the window of the mount, positioning pins are studded at four corners of said film-placing portion so as to be corresponded to engaging holes in both side portions of the film, positioning holes are perforated at positions opposed to said positioning pins, and the positioning holes are fitted to the positioning pins, so that the mount and the cover are fitted together, and further provides a slide mount in which the windows formed in said mount and in said cover are larger than ~_ 3 .~ ~ 5 3 ~ ~ ~
the size of the screen of said film.
According to the invention, windows are formed at the central portions of the mount and the cover, respectively, and the film-placing portion is formed surrounding the window of the mount. Here, the film to be fitted onto the slide mount has holes perforated in both side portions thereof in an opposing manner maintaining an equal distance. A photograph is taken in a manner that the pairs of holes come into agreement with gap portions among the screens, and the gap portions at both ends of the screen of the film are cut; i.e., pairs of holes are cut starting from the central portions thereof, and engaging holes are formed at both ends of the film.
The film-placing portion of the mount is disposed being upwardly faced and the film cut into a screen is placed on the film-placing portion. Then, the film is placed with its central portion being curved in a convexed manner and with its both end portions being in contact with the film-placing portion. The film is then downwardly pushed by bringing the cover into contact therewith from the upper direction. The convexed central portion of the film is pressed onto the film-placing portion and is further extended in the lengthwise direction, so that engaging holes at both end portions of the film come into engagement with the positioning pins. Then, by bringing the positioning holes in the cover into engagement with the positioning pins, the film is correctly fitted onto the slide mount.
More specifically, the windows formed in the mount and in the cover have a size larger than the size of the screen of the film and, besides, the screen of the film is correctly disposed at the same position of the slide mount. Therefore, the screen of the film is fitted inside the windows without being superimposed on the windows.
Therefore, in accordance with the present invention, there is provided a slide mount for use with a slide device for projecting a slide film one screen by one screen comprising a mount and a cover, windows formed at 3a ~ 5 ~
,_ central portions of the mount and the cover, respectively, a film-placing portion formed surrounding the window of the mount, positioning pins provided at four corners of said film-placing portion so as to be corresponded to engaging holes in both side portions of the film, positioning holes defined at positions opposed to said positioning pins, the positioning holes being adapted to be engaged with the positioning pins so as to couple the mount and the cover together.
Brief Description of the Drawings:
Fig. 1 illustrates an embodiment of the present invention, wherein Fig. l(a) is a plan view of a mount and Fig. l(b) is a plan view of a cover:
215~3~9 Fig. 2 is a plan view showing the shape of a film;
, - Fig. 3 is a plan view showing the shape of the film cut into a screen; .
Fig. 4 is a perspective view illustrating the state where the film is being ~itted onto a slide mount;
Fig. 5 is a plan view illustrating the state where the film is fitted onto the slide mount; and Fig. 6 is a plan view illustrating a prior art.
Detailed Description of Preferred Embodiments:
An embodiment of the present invention will now be described in detail with reference to Figs. 1 to 5. Figs. l(a) and ltb) illustrate a slide mount 11 which is constituted by a mount 12 and a cover 13. Referring to ~ig. l(a), a film-placing portion 14 is formed at the center of the mount 12, and is forming a step which is equal to, or deeper than, the sum of the thickness of the film and the thickness of the cover 13 from the surface of the mount 12. Positioning pins 15, 15, --- are studded at four corners of the film-placing portion 14, i.e., at positions corresponding to engaging holes in both side portions of the film that will be described later. As shown in Fig.
l(b), furthermore, positioning holes 16, 16, --- are perforated in the cover 13 at positions where they will be brought into enqaqement with the positioninq pins 15, 15, ---. Moreover, windows 17 and 18 are opened in the mount 12 and in the cover 13, the windows 17 and 18 being arranged on the inside of the positioning pins lS, 15, --- and the positioning holes 16, 16, -_ _ .
Fig. 2 illustrates a film 21 which is obtained bydeveloping a positive film for slide. The film 21 has a width of ~5 mm, and holes 22, 22, --- are perforated in an opposing manner in the side portions of the film 21.
In the film 21 are photographed screens 23, 23, ---which are isolated in the lengthwise direction by gap portions 24, 24, ---. The gap portions 24, 24, --- have been set in advance at the time of taking photographs so as to be positioned between~the holes 22a, 22a, --- that are formed in an opposing 21~33~9 manner. Therefore, the center lines of the gap portions 24, 24, --- are in agreement with lines connecting the centers of the holes 22a, 22a, ---. , By cutting the gap portions 24, 24, --- at both ends of the screen 23 of the film 21 and cutting the holes 22a, 22a, --- in both side portions using a pair of scissors or the like, there is formed a film 31 that is shown in Fig. 3. With the holes 22a, 22a, --- being cut nearly into one-half at the ends on both sides of the film 31, there are now formed engaging holes 32, 32, ---. Since the film 31 is a positive film that is developed, the unexposed portions 33 surrounding the screen 23 remain black and shut off the light.
To fit the film 31 onto the slide mount 11, therefore, the film ll is first placed on the film-placing portion 14 of the mount 12 as shown in Fig. 4. Then, the engaging holes 32, 32, --- formed in both end portions of the film 31 are arranged at posi-tions where they come into engagement with the positioning pins 15, 15, ---. In this case, the film is curved in both the lengthwise direction and in the widthwise direction with the surface of the emulsi~ied material being faced inwards.
That is, the film 31 is placed on the film-placing portion 14 with its central portion being curved in a convexed manner.
Then, the cover 13 that is maintained horizontal is placed over the mount 12 and is downwardly moved toward the mount 12 from the upper diréction; i.e., the cover 13 comes into contact with the surface of the convexed portion of the film 31.
The cover is further downwardly urged so as to depress the film 31. The back surface of the convexed portion of the film 31 then comes into contact with the film-placing portion 14, and the film 31 is extended in the horizontal direction.
The positioning holes 16, 16, --- of the cover 13 are then brought into engagement with the positioning pins 15, 15, ---.
Here, the engaging holes 32, 32, --- at both ends of the film 31 engage with the positioning pins 15, 15, ---, and thus the film 31 engages with the positioning pins 15, 15, ---.
- Fig. 5 illustrates a state in which the film 31 is fitted onto the slide mount 11. In the right-and-left 3 S ~ ~
direction, the film 31 has the engaging holes 32, 32, --- at both ends thereof engaged with the positioning pins 15, 15, ---, and is anchored. In the up-and-do~m direction, the film ~1 is anchored with its side portion being fitted to the step formed in the film-placing portion 14.
In this embodiment, though the positioning pins 15, lS, --- were of a circular shape, the same effects can be exhibited even when the positioning pins 15, 15, --- have a polygonal shape such as a triangular shape, a square shape or a like shape, without being limited to the circular shape.
Furthermore, the positioning pins 15, 15, --- may be folded after they have engaged with the film 31. In this case, the film 31 should be correctly positioned on the film-placing portion 14.
Moreover, since the windows 17, 18 formed in the slide mount I1 have a size larger than the size of the screen 23, the screen 23 of the film 31 is disposed on the inside of the windows 17 and 18.
Though the film 31 according to this embodiment possessed the width of 35 mm, the same effects can be exhibited by the films that have holes perforated in both side portions thereof in an opposing manner, and the width is in no way limited to 35 mm only.
The present invention can.be modified in a variety of .. ...
other ways without departing from the spirit and scope of the invention, and it should be noted that the present invention encompasses even those modified embodiments as a matter of course.
According to the invention as described in detail in the foregoing embodiment, the positioning holes formed in the cover are engaged with the positioning pins while the holes perforated in both side portio~s of the film in an opposing manner are engaged with the positioning pins of the mount, enabling the film to be easily fitted onto the slide mount. Moreover, since the holes that are highly accurately perforated in both side portions of the film are brought as engaging holes into engagement with the positioning pins of the _ 7 ~ 3 ~ ~
mount, the film is correctly positioned on the slide mount.
In a more specific construction of the present invention in which the window formed in the slide mount has a size larger than the size of the screen, the screen is never hindered by the window. Moreover, the unexposed portions of the film that are developed into black color can be used as a frame of the screen, exhibiting various effects such as vividly projecting the screen frame.
B
,. SLIDE MOUNT
BackgrQund of the Invention:
The present invention relates to a slide mount and, particularly, to a slide mount onto which can be correctly fitted a film that is cut into individual screens.
Description of the Prior Art:
A conventional slide mount will ~e described with reference to Fig. 6 wherein reference numeral 1 denotes a slide mount which is made of, for example, a plastic material. The slide mount 1 is constituted by a mount 2 and a cove-r 3, and the mount 2 is provided with a film-placing portion 4 which has a size nearly equal to that of a screen and further has a step with respect to the surface of the mount 2. At the center of the film-placing portion is opened a window 5. Furthermore, recessed portions 6, 6, --- are formed in the periphery of the film-placing portion 4, and the outer peripheries of the recessed portions 6, 6, --- are formed in a protruding manner.
A window 7 is formed in the cover 3, and protruded portions 8, 8, --- are provided on the periphery of the window 7. By fitting the protruded portions 8, 8, --- into the recessed _ portions 6, 6,,--- of the mount 2, the mount 2 and the cover 3 are fi~rmly fitted together; i.e., the window 5 and the window 7 are superposed one upon the other to form the slide mount 1.
The film 9 that is cut into a unit of screen is placed on the film-placing portion 4 and, then, the mount 2.and the cover 3 are fitted together so that the film 9 is fitted onto the slide mount 1.
In the conventional slide mount, the size of the film-placing portion in the direction of width is set to be in aqreement with a specified value of the commercially available film, i.e., 35 mm. Therefore, the film that is cut into a screen is correctly placed in position in the direction of width thereof due to the step formed in the film-placing portion and the outer peripheries of the recessed portions. On the other 21S~35~
' hand, the film is cut by hand along the gap portions among the screen~ by using a pair o~ scissors. It is therefore difficult to cut the film into a predetermined size in the lengthwise direction thereof. Therefore, the ~ilm-placing portion in the lenqthwise direction thereof has been set to a size which is larger than the size of a screen. Accordingly, the film that is inserted in the slide mount has a margin in the lengthwise direction and may undergo a deviation in position.
Moreover, if the window in the slide mount has a size equal to the size of the screen of the film, then, the end of the film becomes in short of contact with the window when the size of the film is short in the lengthwise direction thereof, causing light to leak. If the size of the window is selected to be smaller than the size of the screen in order to solve the above defect, on the other hand, there arouses another problem in that the window and the end of the screen are superposed causing_the screen to be partly missing.
Thus, there arouses a technical problem in regard to correctly and easily fitting a screen of film onto the slide mount without causing the screen to be missing. The object of the present invention is to solve this problem.
Summary of the Invention:
_ The present invention was proposed in order to achieve the above obgéct, and provides a slide mount for pro~ecting a slide film one screen by one screen by using a slide device, wherein said slide mount is constituted by a mount and a cover, windows are formed at the central portions of the mount and the cover, respectively, a film-placing portion is formed surrounding the window of the mount, positioning pins are studded at four corners of said film-placing portion so as to be corresponded to engaging holes in both side portions of the film, positioning holes are perforated at positions opposed to said positioning pins, and the positioning holes are fitted to the positioning pins, so that the mount and the cover are fitted together, and further provides a slide mount in which the windows formed in said mount and in said cover are larger than ~_ 3 .~ ~ 5 3 ~ ~ ~
the size of the screen of said film.
According to the invention, windows are formed at the central portions of the mount and the cover, respectively, and the film-placing portion is formed surrounding the window of the mount. Here, the film to be fitted onto the slide mount has holes perforated in both side portions thereof in an opposing manner maintaining an equal distance. A photograph is taken in a manner that the pairs of holes come into agreement with gap portions among the screens, and the gap portions at both ends of the screen of the film are cut; i.e., pairs of holes are cut starting from the central portions thereof, and engaging holes are formed at both ends of the film.
The film-placing portion of the mount is disposed being upwardly faced and the film cut into a screen is placed on the film-placing portion. Then, the film is placed with its central portion being curved in a convexed manner and with its both end portions being in contact with the film-placing portion. The film is then downwardly pushed by bringing the cover into contact therewith from the upper direction. The convexed central portion of the film is pressed onto the film-placing portion and is further extended in the lengthwise direction, so that engaging holes at both end portions of the film come into engagement with the positioning pins. Then, by bringing the positioning holes in the cover into engagement with the positioning pins, the film is correctly fitted onto the slide mount.
More specifically, the windows formed in the mount and in the cover have a size larger than the size of the screen of the film and, besides, the screen of the film is correctly disposed at the same position of the slide mount. Therefore, the screen of the film is fitted inside the windows without being superimposed on the windows.
Therefore, in accordance with the present invention, there is provided a slide mount for use with a slide device for projecting a slide film one screen by one screen comprising a mount and a cover, windows formed at 3a ~ 5 ~
,_ central portions of the mount and the cover, respectively, a film-placing portion formed surrounding the window of the mount, positioning pins provided at four corners of said film-placing portion so as to be corresponded to engaging holes in both side portions of the film, positioning holes defined at positions opposed to said positioning pins, the positioning holes being adapted to be engaged with the positioning pins so as to couple the mount and the cover together.
Brief Description of the Drawings:
Fig. 1 illustrates an embodiment of the present invention, wherein Fig. l(a) is a plan view of a mount and Fig. l(b) is a plan view of a cover:
215~3~9 Fig. 2 is a plan view showing the shape of a film;
, - Fig. 3 is a plan view showing the shape of the film cut into a screen; .
Fig. 4 is a perspective view illustrating the state where the film is being ~itted onto a slide mount;
Fig. 5 is a plan view illustrating the state where the film is fitted onto the slide mount; and Fig. 6 is a plan view illustrating a prior art.
Detailed Description of Preferred Embodiments:
An embodiment of the present invention will now be described in detail with reference to Figs. 1 to 5. Figs. l(a) and ltb) illustrate a slide mount 11 which is constituted by a mount 12 and a cover 13. Referring to ~ig. l(a), a film-placing portion 14 is formed at the center of the mount 12, and is forming a step which is equal to, or deeper than, the sum of the thickness of the film and the thickness of the cover 13 from the surface of the mount 12. Positioning pins 15, 15, --- are studded at four corners of the film-placing portion 14, i.e., at positions corresponding to engaging holes in both side portions of the film that will be described later. As shown in Fig.
l(b), furthermore, positioning holes 16, 16, --- are perforated in the cover 13 at positions where they will be brought into enqaqement with the positioninq pins 15, 15, ---. Moreover, windows 17 and 18 are opened in the mount 12 and in the cover 13, the windows 17 and 18 being arranged on the inside of the positioning pins lS, 15, --- and the positioning holes 16, 16, -_ _ .
Fig. 2 illustrates a film 21 which is obtained bydeveloping a positive film for slide. The film 21 has a width of ~5 mm, and holes 22, 22, --- are perforated in an opposing manner in the side portions of the film 21.
In the film 21 are photographed screens 23, 23, ---which are isolated in the lengthwise direction by gap portions 24, 24, ---. The gap portions 24, 24, --- have been set in advance at the time of taking photographs so as to be positioned between~the holes 22a, 22a, --- that are formed in an opposing 21~33~9 manner. Therefore, the center lines of the gap portions 24, 24, --- are in agreement with lines connecting the centers of the holes 22a, 22a, ---. , By cutting the gap portions 24, 24, --- at both ends of the screen 23 of the film 21 and cutting the holes 22a, 22a, --- in both side portions using a pair of scissors or the like, there is formed a film 31 that is shown in Fig. 3. With the holes 22a, 22a, --- being cut nearly into one-half at the ends on both sides of the film 31, there are now formed engaging holes 32, 32, ---. Since the film 31 is a positive film that is developed, the unexposed portions 33 surrounding the screen 23 remain black and shut off the light.
To fit the film 31 onto the slide mount 11, therefore, the film ll is first placed on the film-placing portion 14 of the mount 12 as shown in Fig. 4. Then, the engaging holes 32, 32, --- formed in both end portions of the film 31 are arranged at posi-tions where they come into engagement with the positioning pins 15, 15, ---. In this case, the film is curved in both the lengthwise direction and in the widthwise direction with the surface of the emulsi~ied material being faced inwards.
That is, the film 31 is placed on the film-placing portion 14 with its central portion being curved in a convexed manner.
Then, the cover 13 that is maintained horizontal is placed over the mount 12 and is downwardly moved toward the mount 12 from the upper diréction; i.e., the cover 13 comes into contact with the surface of the convexed portion of the film 31.
The cover is further downwardly urged so as to depress the film 31. The back surface of the convexed portion of the film 31 then comes into contact with the film-placing portion 14, and the film 31 is extended in the horizontal direction.
The positioning holes 16, 16, --- of the cover 13 are then brought into engagement with the positioning pins 15, 15, ---.
Here, the engaging holes 32, 32, --- at both ends of the film 31 engage with the positioning pins 15, 15, ---, and thus the film 31 engages with the positioning pins 15, 15, ---.
- Fig. 5 illustrates a state in which the film 31 is fitted onto the slide mount 11. In the right-and-left 3 S ~ ~
direction, the film 31 has the engaging holes 32, 32, --- at both ends thereof engaged with the positioning pins 15, 15, ---, and is anchored. In the up-and-do~m direction, the film ~1 is anchored with its side portion being fitted to the step formed in the film-placing portion 14.
In this embodiment, though the positioning pins 15, lS, --- were of a circular shape, the same effects can be exhibited even when the positioning pins 15, 15, --- have a polygonal shape such as a triangular shape, a square shape or a like shape, without being limited to the circular shape.
Furthermore, the positioning pins 15, 15, --- may be folded after they have engaged with the film 31. In this case, the film 31 should be correctly positioned on the film-placing portion 14.
Moreover, since the windows 17, 18 formed in the slide mount I1 have a size larger than the size of the screen 23, the screen 23 of the film 31 is disposed on the inside of the windows 17 and 18.
Though the film 31 according to this embodiment possessed the width of 35 mm, the same effects can be exhibited by the films that have holes perforated in both side portions thereof in an opposing manner, and the width is in no way limited to 35 mm only.
The present invention can.be modified in a variety of .. ...
other ways without departing from the spirit and scope of the invention, and it should be noted that the present invention encompasses even those modified embodiments as a matter of course.
According to the invention as described in detail in the foregoing embodiment, the positioning holes formed in the cover are engaged with the positioning pins while the holes perforated in both side portio~s of the film in an opposing manner are engaged with the positioning pins of the mount, enabling the film to be easily fitted onto the slide mount. Moreover, since the holes that are highly accurately perforated in both side portions of the film are brought as engaging holes into engagement with the positioning pins of the _ 7 ~ 3 ~ ~
mount, the film is correctly positioned on the slide mount.
In a more specific construction of the present invention in which the window formed in the slide mount has a size larger than the size of the screen, the screen is never hindered by the window. Moreover, the unexposed portions of the film that are developed into black color can be used as a frame of the screen, exhibiting various effects such as vividly projecting the screen frame.
B
Claims (6)
1. A slide mount for use with a slide device for projecting a slide film one screen by one screen comprising a mount and a cover, windows formed at central portions of the mount and the cover, respectively, a film-placing portion formed surrounding the window of the mount, positioning pins provided at four corners of said film-placing portion so as to be corresponded to engaging holes in both side portions of the film, positioning holes defined at positions opposed to said positioning pins, the positioning holes being adapted to be engaged with the positioning pins so as to couple the mount and the cover together.
2. A slide mount according to Claim 1, wherein the windows formed in said mount and in said cover are larger than a size of a screen of the film.
3. A slide mount as claimed in Claims 1 and 2, wherein said film-placing portion comprises a recessed step formed in said mount.
4. A slide mount as claimed in Claim 3, wherein the width of said recessed step corresponds to the width of a said film.
5. A slide mount as claimed in Claims 1 to 4, wherein said positioning pins are circular in cross-section.
6. A slide mount as claimed in Claims 1 to 5, wherein said positioning pins are arranged in a square or rectangular configuration so as to engage with opposed pairs of engaging holes located in the side portions of said film at the gap portions on either side of a screen.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6108803A JPH07319113A (en) | 1994-05-23 | 1994-05-23 | Film for photography |
| US08/275,996 US5447828A (en) | 1994-05-23 | 1994-07-15 | Photographic film |
| GB9415512A GB2289956B (en) | 1994-05-23 | 1994-08-01 | Photographic film |
| GB9426390A GB2291217B (en) | 1994-05-23 | 1994-12-30 | Photographic film |
| CA002153359A CA2153359C (en) | 1994-05-23 | 1995-07-06 | Slide mount |
| DE19528957A DE19528957A1 (en) | 1994-05-23 | 1995-08-07 | Photographic film |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6108803A JPH07319113A (en) | 1994-05-23 | 1994-05-23 | Film for photography |
| CA002153359A CA2153359C (en) | 1994-05-23 | 1995-07-06 | Slide mount |
| DE19528957A DE19528957A1 (en) | 1994-05-23 | 1995-08-07 | Photographic film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2153359A1 CA2153359A1 (en) | 1997-01-07 |
| CA2153359C true CA2153359C (en) | 1999-03-02 |
Family
ID=27170049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002153359A Expired - Fee Related CA2153359C (en) | 1994-05-23 | 1995-07-06 | Slide mount |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2153359C (en) |
-
1995
- 1995-07-06 CA CA002153359A patent/CA2153359C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2153359A1 (en) | 1997-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |