US5708490A — Goggles for use with laser projection assembly sy…

Claim 1

Independent Claim 166 words

Goggles for use in viewing projected laser images comprising: a frame for being worn by a wearer; and a filter placed on said frame, said filter passing a first transmittance level of light in a narrow band of wavelengths adjacent to and including a projection wavelength of a laser to be utilized with said goggles, said filter passing a second transmittance level of light wavelengths within a preselected bandwidth adjacent to either side of said narrow band, and passing a third transmittance level of light at wavelengths outside of said narrow band and said preselected bandwidth, said first transmittance level being substantially greater than said third level and said third level being higher than said second level such that a user is able to view a projected laser image when wearing said goggles because said first transmittance level allows the projected image to be seen while the second transmittance level effectively blocks transmittance at said adjacent wavelengths to thereby enhance the viewability of the projected image.

Claim 2

Dependent Claim 166 words

Goggles for use in viewing projected laser images comprising: a frame for being worn by a wearer; and a filter placed on said frame, said filter passing a first transmittance level of light in a narrow band of wavelengths adjacent to and including a projection wavelength of a laser to be utilized with said goggles, said filter passing a second transmittance level of light wavelengths within a preselected bandwidth adjacent to either side of said narrow band, and passing a third transmittance level of light at wavelengths outside of said narrow band and said preselected bandwidth, said first transmittance level being substantially greater than said third level and said third level being higher than said second level such that a user is able to view a projected laser image when wearing said goggles because said first transmittance level allows the projected image to be seen while the second transmittance level effectively blocks transmittance at said adjacent wavelengths to thereby enhance the viewability of the projected image.

Claim 3

Dependent Claim 51 words

Goggles as recited in claim 1, wherein said laser is a red laser, and said outside wavelengths are in the blue and green visual spectrum and are generally defined by wavelengths between 400 and 580 nm, said filter passing at least a portion of said wavelengths between 400 and 580 nm.

Claim 4

Dependent Claim 13 words

Goggles as recited in claim 2, wherein said second level is approximately zero.

Claim 5

Dependent Claim 31 words

Goggles as recited in claim 2, wherein said third level is less than 50% of the intensity of said outside wavelengths wherein said outside wavelengths range between 400 and 580 nm.

Claim 6

Dependent Claim 14 words

Goggles as recited in claim 1, wherein said first transmittance level is approximately 100%.

Claim 7

Dependent Claim 15 words

Goggles as recited in claim 5, wherein said third transmittance level is less than 10%.

Claim 8

Dependent Claim 16 words

Goggles as recited in claim 1, wherein said first level of transmittance is greater than 50%.

Claim 9

Dependent Claim 16 words

Goggles as recited in claim 7, wherein the second level of transmittance is less than 10%.

Claim 10

Dependent Claim 15 words

Goggles as recited in claim 8, wherein said second level is approximately zero percent transmittance.

Claim 11

Dependent Claim 15 words

Goggles as recited in claim 1, wherein said narrow band is less than 30 nm.

Claim 12

Dependent Claim 14 words

Goggles as recited in claim 10, wherein said narrow band is approximately 15 nm.

Claim 13

Dependent Claim 17 words

Goggles as recited in claim 1, wherein at least one of said transmittance levels is not uniform.

Claim 14

Independent Claim 147 words

A method of utilizing a pair of goggles for viewing a laser projected image comprising the steps of: (1) providing a filter designed to pass a first transmittance level of light within a narrow band of wavelengths including a wavelength associated with said laser, a second transmittance level of wavelengths within a preselected bandwidth adjacent to said narrow band, and allow passage of a third transmittance level of light at wavelengths outside of said narrow band and said preselected bandwidth, said first and third levels being higher than said second level; (2) generating a laser image at a wavelength within said narrow band; and (3) placing said filter between a worker and a laser image such that the worker is able to see the laser image without distortion of the image otherwise caused by light within said preselected bandwidth, and performing work based upon a laser image.

Claim 15

Independent Claim 147 words

A method of utilizing a pair of goggles for viewing a laser projected image comprising the steps of: (1) providing a filter designed to pass a first transmittance level of light within a narrow band of wavelengths including a wavelength associated with said laser, a second transmittance level of wavelengths within a preselected bandwidth adjacent to said narrow band, and allow passage of a third transmittance level of light at wavelengths outside of said narrow band and said preselected bandwidth, said first and third levels being higher than said second level; (2) generating a laser image at a wavelength within said narrow band; and (3) placing said filter between a worker and a laser image such that the worker is able to see the laser image without distortion of the image otherwise caused by light within said preselected bandwidth, and performing work based upon a laser image.

Claim 16

Dependent Claim 16 words

A method as recited in claim 13, wherein said third transmittance level is less than 10%.

Claim 17

Dependent Claim 20 words

A method as recited in claim 13, wherein said filter is connected to a frame of a pair of goggles.

Claim 18

Dependent Claim 41 words

A method as recited in claim 13, wherein said laser is generated in a red wavelength within said narrow band, said preselected bandwidth includes red wavelengths, and said outside wavelengths from step (1) are within the blue and green visual spectrum.

Claim 19

Dependent Claim 138 words

Goggles for use with a laser assembly guidance system comprising: filters to be placed over a wearer's eyes, said filters passing a narrow band of red wavelengths at a first transmittance level, said narrow band being selected to include the wavelength of the laser to be utilized with said filters, said narrow band extending for less than 30 nm, and said filters passing wavelengths within a preselected bandwidth on either side of said narrow band at a second transmittance level which is substantially less than said first transmittance level such that a user is able to view a projected laser image when wearing said goggles because said first transmittance level allows the projected image to be seen while the second transmittance level effectively blocks transmittance at said adjacent wavelengths to thereby enhance the viewability of the projected image.

Claim 20

Dependent Claim 138 words

Goggles for use with a laser assembly guidance system comprising: filters to be placed over a wearer's eyes, said filters passing a narrow band of red wavelengths at a first transmittance level, said narrow band being selected to include the wavelength of the laser to be utilized with said filters, said narrow band extending for less than 30 nm, and said filters passing wavelengths within a preselected bandwidth on either side of said narrow band at a second transmittance level which is substantially less than said first transmittance level such that a user is able to view a projected laser image when wearing said goggles because said first transmittance level allows the projected image to be seen while the second transmittance level effectively blocks transmittance at said adjacent wavelengths to thereby enhance the viewability of the projected image.

Claim 21

Dependent Claim 42 words

Goggles as recited in claim 17, wherein said filters pass wavelengths in the blue and green visual spectrum that are outside of said narrow band and said preselected bandwidth at a third transmittance level that is higher than said second transmittance level.

Claim 22

Dependent Claim 15 words

Goggles as recited in claim 18, wherein said first transmittance level is greater than 50%.

Claim 23

Dependent Claim 16 words

Goggles as recited in claim 19, wherein said third level of transmittance is less than 10%.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-01-12	2001-07-14	2002-01-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-01-12	2005-07-14	2006-01-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-01-12	2009-07-14	2010-01-13	$7700.00	Window Closed / Lapsed

Goggles for use with laser projection assembly systems

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