IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0380063
(1999-08-25)
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우선권정보 |
FR-0002211 (1997-02-25) |
국제출원번호 |
PCT/FR98/00336
(1998-02-20)
|
국제공개번호 |
WO98/38719
(1998-09-03)
|
발명자
/ 주소 |
- Bedouet, Bernard
- Loise, Dominique
- Sardier, Patrick
|
출원인 / 주소 |
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
2 |
초록
▼
A power supply for a plurality of electronic modules in a compartment. DC electric current is provided to a plurality of consumer electronic modules on the basis of a perturbed DC voltage exhibiting a wide voltage variation range. The supply device includes a primary supply module and a voltage prer
A power supply for a plurality of electronic modules in a compartment. DC electric current is provided to a plurality of consumer electronic modules on the basis of a perturbed DC voltage exhibiting a wide voltage variation range. The supply device includes a primary supply module and a voltage preregulator able to step up or step down the DC voltage in order to provide the modules with a preregulated voltage exhibiting a small voltage variation range. Each module includes a voltage conversion device for providing the voltages adapted to the needs of the module.
대표청구항
▼
A power supply for a plurality of electronic modules in a compartment. DC electric current is provided to a plurality of consumer electronic modules on the basis of a perturbed DC voltage exhibiting a wide voltage variation range. The supply device includes a primary supply module and a voltage prer
A power supply for a plurality of electronic modules in a compartment. DC electric current is provided to a plurality of consumer electronic modules on the basis of a perturbed DC voltage exhibiting a wide voltage variation range. The supply device includes a primary supply module and a voltage preregulator able to step up or step down the DC voltage in order to provide the modules with a preregulated voltage exhibiting a small voltage variation range. Each module includes a voltage conversion device for providing the voltages adapted to the needs of the module. rein the shock limiter limits movement of the rigid region of the load beam away from the disk surface due to impact loading. 5. The load beam of claim 3, wherein the shock limiter overlaps a portion of the load beam and the shock limiter contacts the overlapped portion of the load beam upon movement of the load beam toward the shock limiter. 6. The load beam of claim 5, wherein the shock limiter includes at least one bend creating the overlap with the overlapped portion of the load beam. 7. A head suspension for supporting a head slider over a disk surface in a rigid disk drive, the head suspension including a load beam having a mounting region, a rigid region and a spring region located between the mounting region and rigid region, the spring region including an opening, the head suspension comprising a shock limiter having a cantilevered portion formed within the opening of the spring region, the shock limiter including at least one bend creating an overlap with a portion of the load beam to limit movement of the head suspension away from the surface of the disk. 8. A head suspension for supporting a head slider over a disk surface in a rigid disk drive, the head suspension including a load beam having a mounting region, a rigid region and a spring region located between the mounting region and rigid region, the spring region including an opening, the head suspension comprising a shock limiter having a cantilevered portion formed within the opening of the spring region, the shock limiter being adapted to contact the rigid region to limit movement of the rigid region relative to the mounting region. 9. The head suspension of claim 8 wherein the shock limiter limits movement of the rigid region of the load beam away from the disk surface due to impact loading. first positive powered lens for adjusting the focus on the display device through the eyepiece. 2. The viewfinder eyepiece of claim 1, wherein said second positive powered lens is movable a sufficient distance along the optical axis to provide continuous focus adjustment over a range of about eight diopters. 3. The viewfinder eyepiece of claim 2, wherein said adjustment range is from about minus three (-3) diopters correction to about plus five (+5) diopters correction. 4. The viewfinder eyepiece of claim 1, wherein an external sleeve is provided and operatively connected to said second positive powered lens, said sleeve being rotatable for causing movement of said second positively powered lens along said optical axis. 5. The viewfinder eyepiece of claim 1, wherein at least one of the three said lenses is comprised of more than one lens element. 6. The viewfinder of claim 1, wherein each of the three said lenses are made of the same material. 7. The viewfinder of claim 1, wherein the three said lenses are made of at least two different materials. 8. The viewfinder of claim 1, wherein said second positive powered lens is made of a glass that is different from the glass of the other two lenses and reduces lateral color. 9. The viewfinder eyepiece of claim 1, wherein said first positive powered lens is provided with a heating element. 10. A viewfinder eyepiece module for a camera having a video signal tap, comprising: a display device mounted in the module and having a display screen facing rearwardly, a negative powered lens on an optical axis rearwardly adjacent said display screen, a first positive powered lens on the optical axis spaced from said negative powered lens and at an eye-viewing end of the eyepiece module, and, a second positive powered lens positioned on the optical axis between said negative powered lens and said first positive powered lens, said second positive powered lens being movable along the optical axis in the space between said negative powered lens and said first positive powered lens for adjusting the focus on the display screen through the eyepiece. 11. The viewfinder eyepiece module of claim 10, wherein said second positive powered lens is movable a sufficient distance along the optical axis to provide continuous focus adjustment over a range of about eight diopters. 12. The viewfinder eyepiece module of claim 11, wherein said adjustment range is from about minus three (-3) diopters correction to about plus five (+5) diopters correction. 13. The viewfinder eyepiece module of claim 10, wherein an external sleeve is provided and operatively connected to said second positive powered lens, said sleeve being rotatable for causing movement of said second positively powered lens along said optical axis. 14. The viewfinder eyepiece module of claim 10, wherein at least one of the three said lenses is comprised of more than one lens element. 15. The viewfinder of claim 10, wherein each of the three said lenses are made of the same material. 16. The viewfinder of claim 10, wherein the three said lenses are made of at least two different materials. 17. The viewfinder of claim 10, wherein said second positive powered lens is made of a glass that is different from the glass of the other two lenses and reduces lateral color. 18. The viewfinder eyepiece module of claim 10, wherein said first positive powered lens is provided with a heating element. 19. A viewfinder eyepiece for viewing a display screen of a display device in the viewfinder of a camera having a video signal tap for supplying a video signal to the display device, comprising: first, second and third lenses aligned on an optical axis with said first lens being adjacent the display screen and said third lens being adjacent an eye-viewing location; said first, second and third lens combining to provide focusing on the display screen without other lens elements; and said second lens being movable along the optical axis in a space between sa id first lens and said third lens for adjusting the focus on the display screen through the eyepiece; wherein said first lens is negatively powered and said second and third lenses are positively powered. 20. The viewfinder eyepiece of claim 19, wherein said second lens is movable a sufficient distance along the optical axis to provide continuous focus adjustment over a range of about eight diopters. 21. The viewfinder eyepiece of claim 20, wherein said adjustment range is from about minus three (-3) diopters correction to about plus five (+5) diopters correction. 22. The viewfinder eyepiece of claim 19, wherein an external sleeve is provided and operatively connected to said second lens, said sleeve being rotatable for causing movement of said second lens along said optical axis. 23. The viewfinder eyepiece of claim 19, wherein at least one of the three said lenses is comprised of more than one lens element. 24. The viewfinder of claim 19, wherein each of the three said lenses are made of the same material. 25. The viewfinder of claim 19, wherein the three said lenses are made of at least two different materials. 26. The viewfinder of claim 19, wherein aid second lens is made of a glass that is different from the glass of said first and third lenses and reduces lateral color. 27. The viewfinder eyepiece of claim 19, wherein said third lens is provided with a heating element. 28. A viewfinder eyepiece optical system for a camera having a video signal tap for viewing a display screen of a display device in the viewfinder, the system comprising: a first lens 1, and second lens 2 and a third lens 3 having the optical designs set forth in the table below wherein said lenses are identified in the first column as items 1, 2 and 3, respectively; and wherein, the Object Plane item is the location of the display screen of the display device, the Stop item is the location of the optical stop, the Eye Pupil Position item is the location of the exit pupil for viewing the image on the display screen, the Perfect Eye Lens is the location of a surface that emulates a perfect eye lens of focal length 22.5 mm, the Image Plane item is a flat image plane located equivalent to the retina of the viewing human eye, the Surface column identifies the surfaces of the items, the Separation column sets forth the distance from one surface to the next surface, the Radius of Curvature column sets forth the radius of that surface, the Material Type column identifies the material between that surface and the next surface, and the Maximum Aperture Diameter column sets forth the maximum diametric diameter of the light rays passing through the surface: TBL Maximum Radius of Ma- Aperture Focus Separation curvature terial DiameterItem Surface Position (mm) (mm) Type (mm)Plane S1 ALL 10.00 Flat Air 42.501 S2 ALL 2.60 Flat Glass 39.92 S3 A 3.75 52.464 Air 38.85 B 53.20 C 73.102 S4 ALL 8.20 103.498 Glass 39.15 S5 A 69.85 -103.498 Air 39.03 B 20.40 C 0.503 S6 ALL 3.16 131.160 Glass 28.67 S7 ALL 40.00 Flat Air 27.87Stop S8 ALL 0.0 Flat Air 7.00Eye Pupil S9 ALL 0.0 -- -- --PositionPerfect S10 ALL 22.50 -- -- --Eye LensImage S11 ALL -- Flat -- --Plane. 29. The viewfinder of claim 28, wherein said first lens 1, second lens 2 and third lens 3 are made of the same glass. 30. A viewfinder eyepiece optical system for a camera having a video signal tap for viewing a display screen of a display device in the viewfinder, the system comprising: a first lens 1, and second lens 2 and a third len s 3 having the optical designs set forth in the table below wherein said lenses are identified in the first column as items 1, 2 and 3, respectively; and wherein, the Object Plane item is the location of a display screen of the display device, the Stop item is the location of the optical stop, the Eye Pupil Position item is the location of the exit pupil for viewing the image on the display screen, the Perfect Eye Lens item is the location of a surface that emulates a perfect eye lens of focal length 22.5 mm, the Image Plane item is a flat image plane located equivalent to the retina of the viewing human eye, the Surface column identifies the surfaces of the items, the Separation column sets forth the distance from one surface to the next surface, the Radius of Curvature column sets forth the radius of that surface, the Material Type column identifies the material between that surface and the next surface, and the Maximum Aperature Diameter column sets forth the maximum diametric diameter of the light rays passing through the surface: TBL Maximum Radius of Ma- Aperture Focus Separation curvature terial DiameterItem Surface Position (mm) (mm) Type (mm)Plane S1 ALL 10.00 Flat Air 42.501 S2 ALL 2.60 Flat Glass 39.95 S3 A 3.75 52.464 Air 38.89 B 53.20 C 73.102 S4 ALL 8.20 87.100 Glass 39.26 S5 A 69.85 -87.100 Air 39.15 B 20.40 C 0.503 S6 ALL 3.16 131.160 Glass 28.69 S7 ALL 40.00 Flat Air 27.90Stop S8 ALL 0.0 Flat Air 7.00Eye Pupil S9 ALL 0.0 -- -- --PositionPerfect S10 ALL 22.50 -- -- --Eye LensImage S11 ALL -- Flat -- --Plane. 31. The viewfinder of claim 30, wherein said second lens 2 is made of a glass that is different from the glass of said first lens 1 and third lens 3 and reduces lateral color.
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