US5721795A — High efficiency ejection of light from optical wa…

Claim 1

Independent Claim 97 words

Radiant electromagnetic energy transmitting apparatus, comprising in combination a) an elongated body consisting of electromagnetic energy transmitting material, a source of said energy coupled to said body to inject said energy into the body to travel therein in multiple modes and to be trapped during said travel by total internal reflection off walls defined by the body, b) and there being at least one site within the body having variegated surface relief acting to scatter incident radiant energy for ejection from the body as rays defining a selected solid angle, c) said site characterized as formed holographically.

Claim 2

Dependent Claim 97 words

Radiant electromagnetic energy transmitting apparatus, comprising in combination a) an elongated body consisting of electromagnetic energy transmitting material, a source of said energy coupled to said body to inject said energy into the body to travel therein in multiple modes and to be trapped during said travel by total internal reflection off walls defined by the body, b) and there being at least one site within the body having variegated surface relief acting to scatter incident radiant energy for ejection from the body as rays defining a selected solid angle, c) said site characterized as formed holographically.

Claim 3

Dependent Claim 13 words

The combination of claim 1 wherein said body consists of light-transmitting synthetic material.

Claim 4

Dependent Claim 15 words

The combination of claim 1 wherein there are multiple of said sites in the body.

Claim 5

Dependent Claim 20 words

The combination of claim 1 including a light diffuser extending adjacent said body for passing light emanating from the body.

Claim 6

Dependent Claim 16 words

The combination of claim 4 wherein the diffuser is a holographic diffuser for transmitting collimated light.

Claim 7

Dependent Claim 20 words

The combination of claim 4 wherein the diffuser is a holographic diffuser for transmitting light divergently, away from said body.

Claim 8

Dependent Claim 108 words

Radiant electromagnetic energy transmitting apparatus, comprising in combination an elongated body consisting of electromagnetic energy transmitting material, said energy injected into the body to travel therein and to be trapped during said travel by total internal reflecting off walls defined by the body, b) and there being at least one site within the body having variegated surface relief acting to scatter incident radiant energy for ejection from the body as rays defining a selected solid angle, c) and including a source of said energy having an end portion received into said body to transmit said energy in different directions therein for effecting energy travel lengthwise of the body.

Claim 9

Dependent Claim 108 words

Radiant electromagnetic energy transmitting apparatus, comprising in combination an elongated body consisting of electromagnetic energy transmitting material, said energy injected into the body to travel therein and to be trapped during said travel by total internal reflecting off walls defined by the body, b) and there being at least one site within the body having variegated surface relief acting to scatter incident radiant energy for ejection from the body as rays defining a selected solid angle, c) and including a source of said energy having an end portion received into said body to transmit said energy in different directions therein for effecting energy travel lengthwise of the body.

Claim 10

Dependent Claim 30 words

The combination of claim 7 wherein said body is in the form of a rod that defines multiple recesses, and said energy source includes multiple sources received into said recesses.

Claim 11

Dependent Claim 14 words

The combination of claim 8 wherein said recesses are spaced apart along the rod.

Claim 12

Dependent Claim 21 words

The combination of claim 9 wherein the rod has opposite side wall extents which are relatively convergent at said recess locations.

Claim 13

Dependent Claim 15 words

The combination of claim 10 wherein the rod is narrowed at and proximate said locations.

Claim 14

Dependent Claim 29 words

The combination of claim 9 wherein said rod has length "l" and said recesses are located at or proximate to 1/4 "l" and 3/4 "l", along the rod length.

Claim 15

Dependent Claim 21 words

The combination of claim 12 wherein the rod has opposite side wall extents which are relatively convergent at said recess locations.

Claim 16

Dependent Claim 22 words

The combination of claim 7 wherein said body defines a recess, and said energy source end portion is received into said recess.

Claim 17

Dependent Claim 16 words

The combination of claim 14 wherein said body has an edge portion forming said recess therein.

Claim 18

Dependent Claim 27 words

The combination of claim 14 wherein said body is a rod and said recess is formed sidewardly into the rod at a location along the rod length.

Claim 19

Dependent Claim 13 words

The combination of claim 7 wherein said site is characterized as formed holographically.

Claim 20

Dependent Claim 15 words

The combination of claim 17 wherein said site is initially formed on a photographic emulsion.

Claim 21

Dependent Claim 13 words

The combination of claim 7 wherein said body consists of light transmitting material.

Claim 22

Dependent Claim 12 words

The combination of claim 19 wherein said material consists of synthetic resin.

Claim 23

Dependent Claim 31 words

The combination of claim 7 wherein said source is a light source said end portion of which is smaller than the overall cross-dimension of the rod proximate said source end portions.

Claim 24

Dependent Claim 16 words

The combination of claim 7 wherein said energy source is an LED embedded into the rod.

Claim 25

Dependent Claim 16 words

The combination of claim 7 wherein said energy source comprise multiple LEDs embedded into the rod.

Claim 26

Independent Claim 88 words

The method of generating an object beam forming site on an optical wave guide that includes a) providing a source of electromagnetic wave energy and coupling said source to said wave guide to pass a reference beam into that wave guide to travel lengthwise therein in different directions and with total internal reflection off walls of the wave guide, b) passing an object beam into the wave guide to interfere with the reference beam, and c) recording a variegated surface pattern corresponding to said interference of said beam.

Claim 27

Independent Claim 88 words

The method of generating an object beam forming site on an optical wave guide that includes a) providing a source of electromagnetic wave energy and coupling said source to said wave guide to pass a reference beam into that wave guide to travel lengthwise therein in different directions and with total internal reflection off walls of the wave guide, b) passing an object beam into the wave guide to interfere with the reference beam, and c) recording a variegated surface pattern corresponding to said interference of said beam.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-02-23	2001-08-25	2002-02-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-02-23	2005-08-25	2006-02-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-02-23	2009-08-25	2010-02-24	$7700.00	Window Closed / Lapsed

High efficiency ejection of light from optical wave guide, by holographically produced light scattering means

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