US5365288A — Image mover

Claim 1

Independent Claim 57 words

Apparatus adapted for use with a projector having a diverging image and a steering mirror, comprising a first lens for collimating said diverging image to provide a collimated image, rotator for rotating said collimated image responsive to horizontal movement of the steering mirror, and a second lens for restoring said collimated image to a restored diverging image.

Claim 2

Dependent Claim 57 words

Apparatus adapted for use with a projector having a diverging image and a steering mirror, comprising a first lens for collimating said diverging image to provide a collimated image, rotator for rotating said collimated image responsive to horizontal movement of the steering mirror, and a second lens for restoring said collimated image to a restored diverging image.

Claim 3

Dependent Claim 17 words

Apparatus of claim 1 wherein the projector further comprising a scanning mirror projecting a diverging laser light.

Claim 4

Dependent Claim 12 words

Apparatus of claim 1 wherein said first lens is an achromat lens.

Claim 5

Dependent Claim 10 words

Apparatus of claim 1 wherein said rotator is a K-mirror.

Claim 6

Dependent Claim 11 words

Apparatus of claim 1 wherein said rotator is a pechan prism.

Claim 7

Dependent Claim 11 words

Apparatus of claim 1 wherein said rotator is a dove prism.

Claim 8

Dependent Claim 13 words

Apparatus of claim 1 wherein said second lens having a fixed focal length.

Claim 9

Dependent Claim 30 words

Apparatus of claim 1 wherein said second lens being a zoom lens to change the size of said restored diverging image, said zoom lens being moved independently from said rotator.

Claim 10

Dependent Claim 20 words

Apparatus of claim 1 wherein the steering mirror projecting said restored diverging image to a viewing surface in real time.

Claim 11

Dependent Claim 13 words

Apparatus of claim 9 wherein the steering mirror moving independently from said rotator.

Claim 12

Dependent Claim 13 words

Apparatus of claim 9 wherein the steering mirror moving proportional to said rotator.

Claim 13

Dependent Claim 39 words

Apparatus of claim 1 wherein the focal length of the first lens is greater than 99 mm or the focal length of the second lens is less than 85 mm to provide a throw ratio of less than 4.8:1.

Claim 14

Dependent Claim 91 words

Apparatus of claim 2 further comprising the projector having a rotating polygon mirror having a predetermined number of facets and rotated at a predetermined velocity and a projector lens disposed between the rotating polygon mirror and the scanning mirror wherein when the number of facets are increased in said rotating polygon mirror, the focal length of the projector lens can be reduced or the focal length of the first lens can be increased to provide high scan rates and short throw ratios while maintaining the predetermined velocity of said polygon mirror.

Claim 15

Dependent Claim 38 words

Apparatus of claim 1 wherein the focal length of said first lens is less than 100 mm or the focal length of said second lens is greater than 200 mm to provide a throw ratio greater than 12:1.

Claim 16

Dependent Claim 34 words

Apparatus of claim 1 further comprising a third lens for collimating said restored diverging image from said second lens, and a fourth lens for restoring said collimated restored image to a resulting diverging image.

Claim 17

Dependent Claim 63 words

Apparatus adapted for use with a projector having a steering mirror and producing an image having angular information, comprising relay lens for collimating and relaying angular information of the image, rotator for rotating said collimated image responsive to movement of the steering mirror, and restoring lens for restoring said collimated image proportional to the angular information of said image produced by the projector.

Claim 18

Dependent Claim 63 words

Apparatus adapted for use with a projector having a steering mirror and producing an image having angular information, comprising relay lens for collimating and relaying angular information of the image, rotator for rotating said collimated image responsive to movement of the steering mirror, and restoring lens for restoring said collimated image proportional to the angular information of said image produced by the projector.

Claim 19

Dependent Claim 60 words

Apparatus of claim 16 wherein the image maintains its focus to infinity and further comprising said relay lens having an intermediate image plane and wherein the projector further comprising a scanning mirror projecting a diverging laser light, wherein said relay lens producing an intermediate image plane being substantially equal to the distance between said relay lens and said scanning mirror.

Claim 20

Dependent Claim 46 words

Apparatus of claim 17 further comprising horizontal and vertical scan angles of the laser light image projected from said scanning mirror wherein the scan angle of the restored image being proportional to the ratio of the focal lengths of the relay lens and the restoring lens.

Claim 21

Dependent Claim 36 words

Apparatus of claim 17 further comprising said restoring lens having an infinite conjugate image plane wherein said restoring lens being positioned so that said restoring lens infinite conjugate image plane coincides with said intermediate image plane.

Claim 22

Dependent Claim 19 words

Apparatus of claim 17 further comprising a fiber-optic bundle positioned between said intermediate image plane and said restoring lens.

Claim 23

Dependent Claim 74 words

Apparatus adapted for use with a projector having a steering mirror and having a scanning mirror projecting a diverging image, comprising a first lens means for collimating the diverging image to produce a collimated image, a second lens means for restoring said collimated image to a restored diverging image, and rotator means disposed between said first and second lens means for rotating said collimated image in response to horizontal movement of the steering mirror.

Claim 24

Dependent Claim 74 words

Apparatus adapted for use with a projector having a steering mirror and having a scanning mirror projecting a diverging image, comprising a first lens means for collimating the diverging image to produce a collimated image, a second lens means for restoring said collimated image to a restored diverging image, and rotator means disposed between said first and second lens means for rotating said collimated image in response to horizontal movement of the steering mirror.

Claim 25

Dependent Claim 74 words

Apparatus adapted for use with a projector having a scanning mirror projecting a diverging image, wherein the image maintains its focus to infinity, comprising a first lens means for collimating the diverging image to provide a collimated image, a steering mirror for projecting the image, rotator means for rotating said collimated image in response to horizontal movement of said steering mirror whereby said steering mirror is reduced in size by collimating the diverging image.

Claim 26

Dependent Claim 74 words

Apparatus adapted for use with a projector having a scanning mirror projecting a diverging image, wherein the image maintains its focus to infinity, comprising a first lens means for collimating the diverging image to provide a collimated image, a steering mirror for projecting the image, rotator means for rotating said collimated image in response to horizontal movement of said steering mirror whereby said steering mirror is reduced in size by collimating the diverging image.

Claim 27

Dependent Claim 20 words

Apparatus of claim 22 a further comprising said steering mirror projecting the image to a viewing surface in real time.

Claim 28

Dependent Claim 14 words

Apparatus of claim 22 wherein said steering mirror moves independently from said rotator means.

Claim 29

Dependent Claim 14 words

Apparatus of claim 22 wherein said steering mirror moves proportional to said rotator means.

Claim 30

Dependent Claim 13 words

Apparatus of claim 22 further comprising stepper motor for moving said rotator means.

Claim 31

Dependent Claim 18 words

Apparatus of claim 22 further comprising stepper motor means for moving said rotator means and the steering mirror.

Claim 32

Dependent Claim 17 words

Apparatus of claim 27 further comprising a computer for controlling the movement of said stepper motor means.

Claim 33

Dependent Claim 118 words

Apparatus adapted for use with a projector having a scanning mirror and a rotating polygon mirror and a projector lens disposed between said mirrors, the rotating polygon mirror having a predetermined number of facets rotatable at a predetermined velocity, the projector producing a diverging image, wherein the improvement comprises: a first lens for collimating the diverging image to provide a collimated image wherein when the number of facets of the polygon mirror are increased over the predetermined number of facets, the focal length of the projector lens can be reduced or the focal length of first lens can be increased to provide high scan rates and short throw ratios while maintaining the predetermined velocity of the polygon mirror.

Claim 34

Dependent Claim 118 words

Apparatus adapted for use with a projector having a scanning mirror and a rotating polygon mirror and a projector lens disposed between said mirrors, the rotating polygon mirror having a predetermined number of facets rotatable at a predetermined velocity, the projector producing a diverging image, wherein the improvement comprises: a first lens for collimating the diverging image to provide a collimated image wherein when the number of facets of the polygon mirror are increased over the predetermined number of facets, the focal length of the projector lens can be reduced or the focal length of first lens can be increased to provide high scan rates and short throw ratios while maintaining the predetermined velocity of the polygon mirror.

Claim 35

Dependent Claim 16 words

Apparatus of claim 29 wherein the increased focal length of said first lens is 200 mm.

Claim 36

Dependent Claim 23 words

Apparatus of claim 29 wherein the increased number of facets of the rotating polygon mirror is twice the number of the predetermined facets.

Claim 37

Dependent Claim 16 words

Apparatus of claim 29 wherein the reduced focal length of the projector lens is 60 mm.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-11-14	1998-05-16	1998-11-15	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-11-14	2002-05-16	2002-11-15	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-11-14	2006-05-16	2006-11-15	$7700.00	Window Closed / Lapsed

Image mover

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