Mount for an optical device

• US 4,972,079 A
• Filed: 07/19/1989
• Issued: 11/20/1990
• Est. Priority Date: 07/19/1989
• Status: Expired due to Term

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Blanding, Douglass L.
• Primary Examiner(s): Nelms, David C.
• Assistant Examiner(s): Hsia, Sherrie
• Application Number:
  US07/381,897
• Time in Patent Office: 489 Days
• Field of Search: 250/239, 250/578, 250/208.1
• US Class Current: 250/239
• CPC Class Codes: G02B 7/004 Manual alignment, e.g. micromanipulators
• CPC Class Codes: H04N 1/02409 Focusing, i.e. adjusting the focus of the scanning head
• CPC Class Codes: H04N 1/03 with photodetectors arranged in a substantially linear array
• CPC Class Codes: H04N 2201/0241 in a direction parallel to the main-scanning direction
• CPC Class Codes: H04N 2201/02412 in a direction parallel to the sub-scanning direction
• CPC Class Codes: H04N 2201/0242 Rotation about an axis in the plane of the scanning elements orthogonal to the optical axis, the axis of rotation extending in the main-scanning direction, e.g. the longitudinal axis of a linear array
• CPC Class Codes: H04N 2201/02422 Rotation about an axis in the plane of the scanning elements orthogonal to the optical axis, the axis of rotation extending in the sub-scanning direction, e.g. the transverse axis of a linear array
• CPC Class Codes: H04N 2201/02429 Photodetector element, e.g. CCD array
• CPC Class Codes: H04N 2201/02441 using screws
• CPC Class Codes: H04N 2201/04796 Varying the sub-scan control during the main-scan, e.g. for correcting skew, tilt or bow of a scanning beam
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

Abstract

A mount for an optical device, such as a linear CCD array, is disclosed. The array is mounted on a base which is supported on a frame for adjustment relative thereto. The base is slidably movable on the frame for adjustment of the array in in-track and cross-track directions. The base is movable toward and away from the frame to provide a focus adjustment of the array. In order to provide a mount which can be easily and precisely adjusted to position the array along five degrees of freedom, adjustment screws are positioned such that the position of the array can be changed along one degree of freedom without changing the position of the array along any of the other degrees of freedom.

Claims

1. A mount for an optical device, said device including a column of photosensitive elements arranged along an axis, said mount comprising:

means for supporting said device; and

a plurality of adjustment means which are operable on said device for adjusting the position of said device relative to said supporting means in a plurality of degrees of freedom, each of said adjustment means being operable to adjust the position of said device in one degree of freedom without moving the device in the other degrees of freedom, one of said adjustment means being operable along said axis and another of said adjustment means being operable along a line which passes through a photosensitive element at one end of said column.

2. A mount for an optical device, as defined in claim 1, wherein said adjustment means are operable to adjust the device in five degrees of freedom.

3. A mount for an optical device, as defined in claim 1, wherein said device is a linear array of photosensitive elements disposed in a plane, and said adjustment means are operable to adjust the position of said device along three degrees of freedom in said plane.

4. A mount for an optical device, as defined in claim 1, wherein said adjustment means is operable to adjust said device about two axes which lie in said plane.

5. A mount for an optical device, said mount comprising:

a base for receiving said device;

a frame for supporting said base; and

means for adjusting said base relative to said frame, said adjusting means including means for contacting said base at a plurality of points and means for biasing said base against said contacting means with equal force on each of said points.

6. A mount, as defined in claim 5, wherein said device is a linear array of photosensitive elements, and said contacting means contacts said array at points in line with the two linear extremities of said array.

7. A mount, as defined in claim 6, wherein said contacting means contacts said array at a point in line with said array of photosensitive elements.

8. A mount for an optical device, said mount comprising:

base means for supporting said device;

frame means for suporting said base means; and

adjustment means for moving said base means relative to said frame to position said device, said adjustment means including threaded elements in said frame means which are operable on said base means, each of said threaded elements being movable to effect adjustment of the device along one degree of freedom without moving the device in any other degree of freedom.

9. A mount, as defined in claim 8, wherein said adjustment means includes three threaded elements which are operable to adjust the position of the device along three degrees of freedom in one plane.

10. A mount, as defined in claim 9, wherein means is provided for biasing said base means toward said three threaded elements with equal force on each of said elements.

11. A mount, as defined in claim 10, wherein said adjustment means includes two threaded elements which are operable to adjust the position of said device about two axes in said plane.

12. A mount, as defined in claim 11, wherein said axes are orthogonal.

13. A mount, as defined in claim 11, wherein spring means is provided for biasing said base means toward said frame means.

14. A mount for an optical device, said mount comprising:

base means for supporting said device;

frame means for supporting said base means; and

adjustment means for moving said base means relative to said frame to position said device, said adjustment means including wire flexures for making a connection between said adjustment means and said base means.

15. A mount, as defined in claim 14, wherein said adjustment means includes threaded elements in said frame means which are operable to effect movement of said base menas, and said wire flexures extend between said threaded elements and said base means.