Film picture image viewing apparatus

• US 6,072,186 A
• Filed: 08/06/1997
• Issued: 06/06/2000
• Est. Priority Date: 08/20/1996
• Status: Expired due to Term

• Current Assignee: Nikon Corporation
• Original Assignee: Nikon Corporation
• Inventors: Kazami, Kazuyuki, Yokonuma, Norikazu, Hibino, Hideo, Okutsu, Hisashi
• Primary Examiner(s): ALLEN, STEPHONE B
• Application Number:
  US08/906,823
• Time in Patent Office: 1,035 Days
• Field of Search: 250/559.02, 362/16, 362/217, 362/218, 362/294, 362/342, 362/343, 362/345, 362/347, 355/38, 355/40, 355/218, 396/311, 396/116, 396/315, 396/319, 360/3
• US Class Current: 250/559.02
• CPC Class Codes: H04N 1/00267 with a viewing or projecting apparatus, e.g. for reading image information from a film H04N1/00262 takes precedence
• CPC Class Codes: H04N 1/02815 Means for illuminating the original, not specific to a particular type of pick-up head
• CPC Class Codes: H04N 1/0285 in combination with at least one reflector which is in fixed relation to the light source
• CPC Class Codes: H04N 1/0287 using a tubular lamp or a combination of such lamps
• CPC Class Codes: H04N 1/12 using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanningsheet-feed movement by translatory movement of a flat picture-bearing surface H04N1/1008; main-scanning using oscillating or rotating mirrors H04N1/113; using multi-element arrays H04N1/19
• CPC Class Codes: H04N 1/193 using electrically scanned linear arrays , e.g. linear CCD arrays

Abstract

A film picture image viewing apparatus minimizes the effects of noise by prohibiting operation of an illumination device whenever a reading or a playback device is operated. The film picture image viewing apparatus includes a support substrate. The illumination device includes a discharge tube and a reflector. The discharge tube provides light when energized. The reflector is anchored to the support substrate and has a pair of oppositely-disposed ends with a receiving hole formed in each end. Each of the receiving holes is sized to receive the discharge tube in a manner to minimize thermal conduction from the discharge tube to the reflector after the discharge tube becomes energized.

Claims

1. A film picture image viewing apparatus, comprising:

imaging means for producing an electronic image signal from a picture image on a film;

recording and playback means for recording magnetic information onto the film and playing back recorded magnetic information from the film;

an illumination means that illuminates the film; and

control means for prohibiting operation of the illumination means during recording or playback of the magnetic information by the recording and playback means.

2. The film picture image viewing apparatus of claim 1, wherein:

the illumination means includes a discharge tube and a reflector that collects light emitted from the discharge tube, the discharge tube being mounted to the reflector in a manner that minimizes thermal conduction from the discharge tube to the reflector.

3. The film picture image viewing apparatus of claim 2, wherein:

the reflector includes a plurality of projection members extending radially inwardly from a pair of oppositely-disposed receiving holes formed in the reflector, the discharge tube being received by the pair of receiving holes, and respective ends of the projection members contacting the discharge tube.

4. The film picture image viewing apparatus of claim 2, further comprising:

a pair of gasket members, each gasket member fabricated from a heat insulating material and having an opening extending therethrough, wherein the reflector includes a pair of oppositely-disposed receiving holes, each receiving hole receiving a respective gasket member, and the discharge tube being retained within respective ones of the gasket openings to anchor the discharge tube within the reflector while being in thermal isolation from the reflector.

5. The film picture image viewing apparatus of claim 1, further comprising:

a substrate connected to the film picture image viewing apparatus, and wherein the illumination means includes a discharge tube and a reflector sized and adapted to receive the discharge tube in a non-contacting relationship, the reflector and the discharge tube being anchored to the substrate independently of one another.

6. The film picture image viewing apparatus of claim 1, wherein the recording and playback means reads magnetically recorded information from the film.

7. The film picture image viewing apparatus of claim 2, wherein the reflector includes at least one aperture, at least one projection member extending from the reflector radially inwardly into the at least one aperture, a portion of the discharge tube extending through the at least one aperture and being contacted by an end of the at least one projection member.

8. An illumination device for use with a image viewing apparatus having a support substrate, the illumination device comprising:

a discharge tube that emits light when energized;

a reflector mounted to the support substrate and having a pair of oppositely-disposed ends with a receiving hole formed in each end, each receiving hole receiving portions of the discharge tube in a manner that minimizes thermal conduction from the discharge tube to the reflector after the discharge tube is energized.

9. An illumination device according to claim 8, wherein the reflector includes a plurality of projection members extending radially inwardly of each receiving hole, respective ends of the projection members contacting the discharge tube.

10. An illumination device according to claim 8, further comprising a pair of gasket members, each gasket member fabricated from a heat insulating material and having an opening extending therethrough, each gasket member being disposed in a respective one of the receiving holes in contact with the reflector, and the portions of the discharge tube extending through and contacting the openings in the gasket members.

11. An illumination device according to claim 8, wherein the receiving holes are larger in diameter than a diameter of the portions of the discharge tube so as to receive the portions of the discharge tube in a non-contacting relationship, the discharge tube being anchored to the support substrate independently of the reflector.

12. An illumination device according to claim 8, wherein the reflector is trough-shaped.

13. A film picture image viewing apparatus, comprising:

an imaging device that images a picture image on a film to produce an electronic image signal;

a recording and playback device that records magnetic information onto the film and plays back recorded magnetic information from the film;

a light source that illuminates the film; and

a controller that prohibits operation of the light source during reading or playback of the recorded information by the reading and playback device.

14. The film picture image viewing apparatus of claim 13, wherein:

the light source includes a discharge tube and a reflector that collects the light emitted from the discharge tube, the discharge tube being mounted to the reflector in a manner that minimizes thermal conduction from the discharge tube to the reflector.

15. The film picture image viewing apparatus of claim 14, wherein:

the reflector includes a plurality of projection members extending radially inwardly from a pair of oppositely-disposed receiving holes formed in the reflector, the discharge tube being received by the pair of tube receiving holes, and respective ends of the projection members contacting the discharge tube.

16. The film picture image viewing apparatus of claim 14, further comprising:

a pair of gaskets, each gasket fabricated from a heat insulating material, wherein the reflector includes a pair of oppositely-disposed receiving holes, each receiving hole receiving a respective gasket and the discharge tube to anchor the discharge tube to the reflector while being in thermal isolation from the reflector.

17. The film picture image viewing apparatus of claim 13, further comprising:

a substrate connected to the film picture image viewing apparatus, and wherein the illumination device includes a discharge tube and a reflector sized and adapted to receive the discharge tube in a non-contacting relationship, the reflector and the discharge tube being anchored to the substrate independently of one another.

18. The film picture image viewing apparatus of claim 13, wherein the recording and playback device reads magnetically recorded information from the film.

19. The film picture image viewing apparatus of claim 13, wherein the image device includes a charge coupled device.

20. The film picture image viewing apparatus of claim 13, wherein the light source includes a cold cathode discharge tube.