Projector

Claim 2

A projector comprising: means for generating an image; and means for projecting the image to a screen, said projecting means having a projection lens system, a first reflector and a second reflector, where said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other and such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said second reflector to said screen.

Claim 3

A projector according to claim 1, wherein the projection lens system is obliquely arranged together with the generating means in a manner such that an angle between the optical axis of the projection lens system and an incident angle of the light flux to the screen lies within a range from 0° to 10°.

Claim 4

A projector according to claim 1, wherein the generating means has: a first generator to form a red image; a second generator to form a blue image; and a third image to form a green image.

Claim 5

A projector according to claim 3, wherein the projection lens system has: a first projection lens to project the image of the first generator; a second projection lens to project an image of the second generator; and a third projection lens to project an image of the third generator.

Claim 6

A projector according to claim 3, wherein the projection lens system has a single lens assembly to project the images of the first, second, and third generators.

Claim 7

A projector according to claim 1, wherein the generating means and the projection lens system are integratedly constructed.

Claim 8

A projector according to claim 1, wherein said first reflector and said second reflector are mutually connected.

Claim 9

A projector according to claim 3, wherein said generating means has a CRT.

Claim 10

A projector according to claim 4, wherein said generating means has a CRT.

Claim 11

A projector according to claim 5, wherein said generating means has a CRT.

Claim 12

A projector according to claim 3, wherein said generating means has a liquid crystal display.

Claim 13

A projector according to claim 4, wherein said generating means has a liquid crystal display.

Claim 14

A projector according to claim 5, wherein said generating means has a liquid crystal display.

Claim 15

A projector comprising: means for generating an image; and means for projecting said image to a screen; wherein said projecting means has a projection lens system and reflectors; wherein said projection lens system directs a light beam indicative of the image from said generating means to said reflectors in a direction away from said screen, and said reflectors reflect the light beam incident thereon so that the light beam is folded thereat and to be directed to said screen such that an optical axis between said projection lens system and each of said reflectors and an optical axis between another reflector and said screen do not intersect each other; wherein said reflectors are arranged such that when tracing the light path in order from said screen, said reflectors and said projection lens system, the light path between any of said reflectors and said projection lens system is directed toward said screen; and wherein said reflectors direct said light beam to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on said screen with an incident angle of 0° to 5°.

Claim 16

A projector comprising: means for generating an image; and means for projecting said image to a screen; wherein said projecting means has a projection lens system and reflectors; wherein said projection lens system directs a light beam indicative of the image from said generating means to said reflectors in a direction away from said screen, and said reflectors reflect the light beam incident thereon so that the light beam is folded thereat and to be directed to said screen such that an optical axis between said projection lens system and each of said reflectors and an optical axis between another reflector and said screen do not intersect each other; wherein said reflectors are arranged such that when tracing the light path in order from said screen, said reflectors and said projection lens system, the light path between any of said reflectors and said projection lens system is directed toward said screen; and wherein said reflectors direct said light beam to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on said screen with an incident angle of 0° to 5°.

Claim 17

A projector comprising: a screen; means for projecting an image; and means for projecting said image to said screen, said projecting means having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and said screen do not intersect each other, and said second reflector bends the light flux so that the light flux obliquely enters the screen, and said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said second reflector to said screen, and wherein the screen has an eccentric Fresnel lens sheet and said sheet deflects the light flux in the direction perpendicular to the sheet and also converges the light flux.

Claim 18

A projector comprising: a screen; means for projecting an image; and means for projecting said image to said screen, said projecting means having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and said screen do not intersect each other, and said second reflector bends the light flux so that the light flux obliquely enters the screen, and said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said second reflector to said screen, and wherein the screen has an eccentric Fresnel lens sheet and said sheet deflects the light flux in the direction perpendicular to the sheet and also converges the light flux.

Claim 19

A projector according to claim 15, wherein the first and second mirrors are connected.

Claim 20

A projector according to claim 15, wherein the projection lens system is obliquely arranged together with the generator in a manner such that an angle between the optical axis of the projection lens system and an incident angle of the light flux to the screen lies within a range from 0° to 10°.

Claim 21

A projector according to claim 15, wherein the projection lens system and the generator are integratedly constructed.

Claim 22

A projector according to claim 15, wherein said generating means has: a first generator to form a red image; a second generator to form a blue image; and a third generator to form a green image.

Claim 23

A projector according to claim 19, wherein the projection lens system has: a first projection lens to project the image of the first generator; a second projection lens to project the image of the second generator; and a third projection lens to project the image of the third generator.

Claim 24

A projector according to claim 19, wherein the projection lens system has a single lens assembly to project the images of the first, second, and third generators.

Claim 25

A projector according to any one of claims 19 to 21, wherein said generating means has a CRT.

Claim 26

A projector according to any one of claims 19 to 21, wherein said generating means has a liquid crystal display.

Claim 27

A projector according to claim 15, wherein said generating means and the projection lens system are arranged at a lower position of the light beam.

Claim 28

A projector according to claim 15, wherein said generating means and the projection lens system are arranged at an upper or side position of the light beam.

Claim 29

A projector comprising: a screen; means for generating an image; and means for projecting said image to said screen, said projecting means having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and said screen do not intersect each other and to be directed to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said second reflector to said screen.

Claim 30

A projector comprising: a screen; means for generating an image; and means for projecting said image to said screen, said projecting means having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and said screen do not intersect each other and to be directed to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said second reflector to said screen.

Claim 31

A projector comprising: means for generating an image; and means for projecting having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other and to be directed to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said first reflector and said second reflector are arranged such that when tracing the light path in order from said screen, said second reflector, said first reflector and said projection lens system, the light path between said first reflector and said projection lens system is directed toward said screen.

Claim 32

A projector comprising: means for generating an image; and means for projecting having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other and to be directed to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said first reflector and said second reflector are arranged such that when tracing the light path in order from said screen, said second reflector, said first reflector and said projection lens system, the light path between said first reflector and said projection lens system is directed toward said screen.

Claim 33

A projector comprising: means for generating an image; and means for projecting having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen and said lens system is obliquely arranged together with the generating means in a manner such that an angle between the optical axis of the projection lens system and an incident angle of the light flux to the screen lies within a range from 0° to 10°, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other and said second reflector reflects the light beam incident thereon so as to be folded and be obliquely incident on said screen, and wherein said first reflector and said second reflector are arranged such that when tracing the light path in order from said screen, said second reflector, said first reflector and said projection lens system, the light path between said first reflector and said projection lens system is directed toward said screen.

Claim 34

A projector comprising: means for generating an image; and means for projecting having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen and said lens system is obliquely arranged together with the generating means in a manner such that an angle between the optical axis of the projection lens system and an incident angle of the light flux to the screen lies within a range from 0° to 10°, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other and said second reflector reflects the light beam incident thereon so as to be folded and be obliquely incident on said screen, and wherein said first reflector and said second reflector are arranged such that when tracing the light path in order from said screen, said second reflector, said first reflector and said projection lens system, the light path between said first reflector and said projection lens system is directed toward said screen.

Claim 35

A projector according to claim 27, wherein the projection lens system is obliquely arranged together with the generating means in a manner such that an angle between the optical axis of the projection lens system and an incident angle of the light flux to the screen lies within a range from 0° to 10°.

Claim 36

A projector according to claim 27, wherein the generating means has: a first generator to form a red image; a second generator to form a blue image; and a third generator to form a green image.

Claim 37

A projector according to claim 30, wherein the projection lens system has: a first projection lens to project the image of the first generator; a second projection lens to project an image of the second generator; and a third projection lens to project an image of the third generator.

Claim 38

A projector according to claim 30, wherein the projection lens system has a single lens assembly to project the images of the first, second and third generators.

Claim 39

A projector according to claim 27, wherein the generating means and the projection lens system are integratedly constructed.

Claim 40

A projector according to claim 27, wherein said first reflector and said second reflector are mutually connected.

Claim 41

A projector according to claim 30, wherein said generating means has a CRT.

Claim 42

A projector according to claim 31, wherein said generating means has a CRT.

Claim 43

A projector according to claim 32, wherein said generating means has a CRT.

Claim 44

A projector according to claim 30, wherein said generating means has a liquid crystal display.

Claim 45

A projector according to claim 31, wherein said generating means has a liquid crystal display.

Claim 46

A projector according to claim 32, wherein said generating means has a liquid crystal display.

Claim 47

A projector comprising: a screen; means for generating an imaged; and means for projecting the image to a screen, said projecting means having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other, and said second reflector directs the light beam to said screen such that the light beam is caused to obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said first reflector and said second reflector are arranged such that when tracing the light path in order from said screen, said second reflector, said first reflector and said projection lens system, the light path between said first reflector and said projection lens system is directed toward said screen.

Claim 48

A projector comprising: a screen; means for generating an imaged; and means for projecting the image to a screen, said projecting means having a projection lens system, a first reflector and a second reflector, wherein said projection lens system directs a light beam indicative of the image from said generating means to said first reflector in a direction away from said screen, and said first reflector reflects the light beam incident thereon so that the light beam is folded thereat to be directed to said second reflector, and said second reflector reflects the light beam incident thereon so as to be folded thereat and to be directed to said screen such that an optical axis between said projection lens system and said first reflector and an optical axis between said second reflector and said screen do not intersect each other, and said second reflector directs the light beam to said screen such that the light beam is caused to obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on the screen with an incident angle of 0° to 5°, and wherein said first reflector and said second reflector are arranged such that when tracing the light path in order from said screen, said second reflector, said first reflector and said projection lens system, the light path between said first reflector and said projection lens system is directed toward said screen.

Claim 49

A projector according to claim 41, wherein the projection lens system is obliquely arranged together with the generating means in a manner such that an angle between the optical axis of the projection lens system and an incident angle of the light flux to the screen lies within a range of 0° to 10°.

Claim 50

A projector according to claim 41, wherein the generating means has: a first generator to form a red image; a second generator to form a blue image; and a third generator to form a green image.

Claim 51

A projector according to claim 43, wherein the projection lens system has: a first projection lens to project the image of the first generator; a second projection lens to project an image of the second generator; and a third projection lens to project an image of the third generator.

Claim 52

A projector according to claim 43, wherein the projection lens system has a single lens assembly to project the images of the first, second and third generators.

Claim 53

A projector according to claim 41, wherein the generating means and the projection lens system are integratedly constructed.

Claim 54

A projector according to claim 43, wherein the generating means has a CRT.

Claim 55

A projector according to claim 44, wherein said generating means has a CRT.

Claim 56

A projector according to claim 45, wherein said generating means has a CRT.

Claim 57

A projector according to claim 43, wherein said generating means has a liquid crystal display.

Claim 58

A projector according to claim 44, wherein said generating means has a liquid crystal display.

Claim 59

A projector according to claim 45, wherein said generating means has a liquid crystal display.

Claim 60

A projector according to claim 41, wherein said generating means and said projection lens system are disposed under the light beam between said second reflector and said screen.

Claim 61

A projector according to claim 41, wherein said generating means and said projection lens system are disposed under the light beam between said second reflector and said screen, or laterally to said light beam.

Claim 62

A projector according to claim 11, wherein the projection lens system is obliquely arranged together with the generator in a manner such that an angle between the optical axis of the injection lens system and an incident angle of the light flux to the screen lies within a range from 0° to 10°.

Claim 63

A projector according to claim 11, wherein the projection lens system and the generator are integratedly constructed.

Claim 64

A projector comprising: means for generating an image; and means for projecting said image to a screen; wherein said projecting means has a projection lens system and reflectors; wherein said projection lens system directs a light beam indicative of the image from said generating means to said reflectors in a direction away from said screen, and said reflectors reflect the light beam incident thereon so that the light beam is folded thereat and to be directed to said screen such that an optical axis between said projection lens system and each of said reflectors and an optical axis between another reflector and said screen do not intersect each other; wherein said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said reflectors to said screen; and wherein said reflectors direct said light beam to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on said screen with an incident angle of 0° to 5°.

Claim 65

A projector comprising: means for generating an image; and means for projecting said image to a screen; wherein said projecting means has a projection lens system and reflectors; wherein said projection lens system directs a light beam indicative of the image from said generating means to said reflectors in a direction away from said screen, and said reflectors reflect the light beam incident thereon so that the light beam is folded thereat and to be directed to said screen such that an optical axis between said projection lens system and each of said reflectors and an optical axis between another reflector and said screen do not intersect each other; wherein said generating means and said projection lens system are successively arranged from said screen so as to be disposed adjacent to the light beam from said reflectors to said screen; and wherein said reflectors direct said light beam to said screen such that the light beam is caused to be obliquely incident on said screen and a marginal portion of the light beam to be incident on said screen at the side opposed to the arrangement of said generating means and said projection lens system is caused to be incident on said screen with an incident angle of 0° to 5°.