Light gauge for identifying plants that can grow in a particular location

Claim 2

A light gauge for plants comprising a support, light sensitive material which changes color in proportion to the intensity and duration of light falling on it on the support, an opaque cover on the support for covering said light sensitive material when the light gauge is not in use, means for withdrawing said light sensitive material from said opaque cover when the light gauge is used, said light sensitive material selected so it does not reach its maximum color change when exposed to the most intense light likely to be encountered over a substantial period of time, areas of colors printed on the support, said areas of colors comprising the colors of the light sensitive material after it is exposed to various intensities of light for said substantial period of time to provide a comparison with the color change on said light sensitive material, a legend associated with each printed color on said support so that when the area of color most nearly the color of the exposed light sensitive material is found after the light gauge has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.

Claim 3

A light gauge for plants comprising a support light sensitive material which changes color in proportion to the intensity and duration of light falling on it mounted on the support, an opaque cover on the support for covering said light sensitive material when the light gauge is not in use, means for withdrawing said light sensitive material from said opaque cover when the light gauge is used, a light filter covering said light sensitive material for attenuating the intensity of the light penetrating said light filter and reaching said light sensitive material, means for observing said light sensitive material after exposure so that the color change of the light sensitive material can be observed when the light gauge is used, said light filter selected so the attenuation of the most intense light likely to be encountered over a substantial period of time prevents the light sensitive material from reaching its maximum color change, areas of colors printed on the support, said areas of colors comprising the colors of the light sensitive material after it is exposed to various intensities of light for said substantial period of time when covered by said light filter to provide a comparison with the color change on said light sensitive material, a legend associated with each printed color so that when the area of color most nearly the color of the exposed light sensitive material is found after the light gauge has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location and the light gauge provides information as to the illumination requirement for a plant which is to be grown in that location so that the available light can be augmented or diminished.

Claim 4

A light gauge for plants comprising a support light sensitive material which changes color in proportion to the intensity and duration of light falling on it mounted on the support, an opaque cover on the support for covering said light sensitive material when the light gauge is not in use, means for withdrawing said light sensitive material from said opaque cover when the light gauge is used, a light filter covering said light sensitive material for attenuating the intensity of the light penetrating said light filter and reaching said light sensitive material, means for observing said light sensitive material after exposure so that the color change of the light sensitive material can be observed when the light gauge is used, said light filter selected so the attenuation of the most intense light likely to be encountered over a substantial period of time prevents the light sensitive material from reaching its maximum color change, areas of colors printed on the support, said areas of colors comprising the colors of the light sensitive material after it is exposed to various intensities of light for said substantial period of time when covered by said light filter to provide a comparison with the color change on said light sensitive material, a legend associated with each printed color so that when the area of color most nearly the color of the exposed light sensitive material is found after the light gauge has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location and the light gauge provides information as to the illumination requirement for a plant which is to be grown in that location so that the available light can be augmented or diminished.

Claim 5

A light gauge for plants comprising a support, light sensitive material of the kind which darkens in proportion to the intensity of light falling on it mounted on the support, an opaque cover on the support for covering said light sensitive material when the light gauge is not in use, means for withdrawing said light sensitive material from said opaque cover when the light gauge is used, a light filter covering said light sensitive material for attenuating the intensity of the light penetrating said light filter and reaching said light sensitive material, said light sensitive material separable from said filter so the color change of the light sensitive material can be observed from the light gauge is used, said light filter selected so the attenuation of the most intense light likely to be encountered over a substantial period of time prevents the light sensitive material from becoming totally saturated with light and reaching its maximum color change, areas of colors printed on the support, said areas of color comprising the colors of the light sensitive material after it is exposed to various intensities of light for said substantial period of time when covered by said light filter to provide a comparison with the color change on said light sensitive material, a legend associated with each color so that when the area of color most nearly the color of the exposed light sensitive material is found after the light gauge has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so the available light can be augmented or diminished.

Claim 6

A light gauge for plants comprising a support, light sensitive material of the kind which darkens in proportion to the intensity of light falling on it mounted on the support, an opaque cover on the support for covering said light sensitive material when the light gauge is not in use, means for withdrawing said light sensitive material from said opaque cover when the light gauge is used, a light filter covering said light sensitive material for attenuating the intensity of the light penetrating said light filter and reaching said light sensitive material, said light sensitive material separable from said filter so the color change of the light sensitive material can be observed from the light gauge is used, said light filter selected so the attenuation of the most intense light likely to be encountered over a substantial period of time prevents the light sensitive material from becoming totally saturated with light and reaching its maximum color change, areas of colors printed on the support, said areas of color comprising the colors of the light sensitive material after it is exposed to various intensities of light for said substantial period of time when covered by said light filter to provide a comparison with the color change on said light sensitive material, a legend associated with each color so that when the area of color most nearly the color of the exposed light sensitive material is found after the light gauge has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so the available light can be augmented or diminished.

Claim 7

A light gauge for plants comprising a support, an opaque envelope mounted on the support, a plurality of strips of light sensitive material which change color in proportion to the intensity and duration of the light falling on it, stacked inside said envelope, said strip having means thereon for pulling the strip of the light sensitive material to a position where it is exposed to light, each strip of light sensitive material selected so it does not reach its maximum color change when exposed to the most intense light likely to be encountered over a substantial period of time, areas of colors printed on the support, said areas of colors comprising the colors of the light sensitive material after it has been exposed to various intensities of light for said substantial period of time, to provide a comparison with the color change on said light sensitive strip, a legend associated with each printed color on said support, so that when the area of color most nearly like the color of the exposed light sensitive material is found after the light sensitive strip has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so the available light can be augmented or diminished.

Claim 8

A light gauge for plants comprising a support, an opaque envelope mounted on the support, a plurality of strips of light sensitive material which change color in proportion to the intensity and duration of the light falling on it, stacked inside said envelope, said strip having means thereon for pulling the strip of the light sensitive material to a position where it is exposed to light, each strip of light sensitive material selected so it does not reach its maximum color change when exposed to the most intense light likely to be encountered over a substantial period of time, areas of colors printed on the support, said areas of colors comprising the colors of the light sensitive material after it has been exposed to various intensities of light for said substantial period of time, to provide a comparison with the color change on said light sensitive strip, a legend associated with each printed color on said support, so that when the area of color most nearly like the color of the exposed light sensitive material is found after the light sensitive strip has been exposed to light for said substantial period of time in a particular location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so the available light can be augmented or diminished.

Claim 9

A light gauge for plants comprising a support, an opaque envelope mounted on the support, a plurality of strips of light sensitive material which change color in proportion to the intensity and duration of the light falling on it stacked inside the said envelope, each strip having means thereon for pulling a strip of light sensitive material out of said envelope to a position where it is exposed to light, said support having a light filter thereon to attenuate the light falling on said support to said light sensitive strip, said light filter positioned so when each strip of light senSitive material is pulled from said envelope, it moves beneath said light filter, means for moving said light sensitive strip out from said light filter so the color change can be observed after the light gauge has been used, said light filter selected so the attenuation of the most intense light likely to be encountered over a substantial period of time prevents the light sensitive strip from reaching its maximum color change, areas of color printed on said support, said areas of color comprising the colors of the light sensitive strips after it has been exposed to various intensities of light for said substantial period of time beneath said light filter to provide a comparison with the color change on said light sensitive strip, a legend associated with each printed color on said support so that when the area of color most nearly like the color of the exposed light sensitive strip is found, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provided information as to the illumination requirements for a plant which is to be grown in that location so the available light can be augmented or diminished.

Claim 10

A light gauge for plants comprising a support, an opaque envelope mounted on the support, a plurality of strips of light sensitive material which change color in proportion to the intensity and duration of the light falling on it stacked inside the said envelope, each strip having means thereon for pulling a strip of light sensitive material out of said envelope to a position where it is exposed to light, said support having a light filter thereon to attenuate the light falling on said support to said light sensitive strip, said light filter positioned so when each strip of light senSitive material is pulled from said envelope, it moves beneath said light filter, means for moving said light sensitive strip out from said light filter so the color change can be observed after the light gauge has been used, said light filter selected so the attenuation of the most intense light likely to be encountered over a substantial period of time prevents the light sensitive strip from reaching its maximum color change, areas of color printed on said support, said areas of color comprising the colors of the light sensitive strips after it has been exposed to various intensities of light for said substantial period of time beneath said light filter to provide a comparison with the color change on said light sensitive strip, a legend associated with each printed color on said support so that when the area of color most nearly like the color of the exposed light sensitive strip is found, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provided information as to the illumination requirements for a plant which is to be grown in that location so the available light can be augmented or diminished.

Claim 11

A light gauge for plants comprising a support, said support having an upper surface and a lower surface, an opaque envelope mounted on said lower surface, a plurality of strips of light sensitive material which change color in proportion to the intensity and duration of light falling on it stacked inside said envelope, each strip having means thereon for pulling it out of said envelope to a position where it is exposed to light, at least a portion of said support formed from a material which attenuates light passing there-through whereby it functions as a light filter, said light filter portion of said support positioned so when each light sensitive strip is pulled out of said envelope it moves beneath said light filter whereby light falling on the support is attenuated before it reaches said light sensitive strip, means for moving said light sensitive strip out from beneath said light filter portion of said support after said light gauge has been exposed to light in a location having a fluctuating light intensity for a substantial period of time so that the color change of the light sensitive strip can be observed, the characteristics of said light filter portion selected so the attenuation of the most intense light likely to be encountered over said substantial period of time prevents the light sensitive strip from reaching its maximum color change, areas of color printed on said support, said areas of color comprising the colors of the light sensitive strip after it has been exposed to various intensities of light for said substantial period of time beneath said light filter, to provide a comparison with the color change on said light sensitive strip, a legend associated with each printed color on said support so that when the area of color most nearly like the color of the exposed light sensitive strip is found, after the light sensitive strip has been exposed to light beneath said light filter portion for said substantial period of time in said location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or diminished.

Claim 12

A light gauge for plants comprising a support, said support having an upper surface and a lower surface, an opaque envelope mounted on said lower surface, a plurality of strips of light sensitive material which change color in proportion to the intensity and duration of light falling on it stacked inside said envelope, each strip having means thereon for pulling it out of said envelope to a position where it is exposed to light, at least a portion of said support formed from a material which attenuates light passing there-through whereby it functions as a light filter, said light filter portion of said support positioned so when each light sensitive strip is pulled out of said envelope it moves beneath said light filter whereby light falling on the support is attenuated before it reaches said light sensitive strip, means for moving said light sensitive strip out from beneath said light filter portion of said support after said light gauge has been exposed to light in a location having a fluctuating light intensity for a substantial period of time so that the color change of the light sensitive strip can be observed, the characteristics of said light filter portion selected so the attenuation of the most intense light likely to be encountered over said substantial period of time prevents the light sensitive strip from reaching its maximum color change, areas of color printed on said support, said areas of color comprising the colors of the light sensitive strip after it has been exposed to various intensities of light for said substantial period of time beneath said light filter, to provide a comparison with the color change on said light sensitive strip, a legend associated with each printed color on said support so that when the area of color most nearly like the color of the exposed light sensitive strip is found, after the light sensitive strip has been exposed to light beneath said light filter portion for said substantial period of time in said location having a fluctuating light intensity, the legend associated with said area of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or diminished.

Claim 13

A light gauge for plants comprising a support, said support having an upper surface and a lower surface, an opaque envelope mounted on said lower surface, said envelope having a mouth, a plurality of strips of light sensitive material which darken in proportion to the intensity and duration of light falling on it stacked inside said envelope, each strip having a pull tab attached thereto, each pull tab extending out of the mouth of said envelope, said support having a slit formed therein in spaced relation to the Mouth of said envelope, each pull tab extending through said slit to the upper surface of said support, at least the region of said support between the mouth of the envelope and said slit formed from a material which attenuates light passing there-through whereby it functions as a light filter, said light filter region of said support positioned so when each light sensitive strip is pulled out of said envelope by said pull tab it moves beneath said light filter whereby light falling on the light filter is attenuated before it reaches the light sensitive strip, said pull tab functioning to pull said light sensitive strip through said slit to where the color change of the exposed portion of the strip can be observed, the characteristics of said light filter selected so the attenuation of the most intense light likely to be encountered over a 24-hour period prevents the light sensitive strip from turning completely dark, bands of colors printed on said support, said bands of colors comprising the darker colors of the light sensitive strip after it has been exposed to various intensities of light for 24 hours beneath said light filter to provide a comparison with the color change on said light sensitive strip, a legend associated with each color band so that when the band of color most nearly like the color of the exposed light sensitive strip is found the legend associated with said band of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.

Claim 14

A light gauge for plants comprising a support, said support having an upper surface and a lower surface, an opaque envelope mounted on said lower surface, said envelope having a mouth, a plurality of strips of light sensitive material which darken in proportion to the intensity and duration of light falling on it stacked inside said envelope, each strip having a pull tab attached thereto, each pull tab extending out of the mouth of said envelope, said support having a slit formed therein in spaced relation to the Mouth of said envelope, each pull tab extending through said slit to the upper surface of said support, at least the region of said support between the mouth of the envelope and said slit formed from a material which attenuates light passing there-through whereby it functions as a light filter, said light filter region of said support positioned so when each light sensitive strip is pulled out of said envelope by said pull tab it moves beneath said light filter whereby light falling on the light filter is attenuated before it reaches the light sensitive strip, said pull tab functioning to pull said light sensitive strip through said slit to where the color change of the exposed portion of the strip can be observed, the characteristics of said light filter selected so the attenuation of the most intense light likely to be encountered over a 24-hour period prevents the light sensitive strip from turning completely dark, bands of colors printed on said support, said bands of colors comprising the darker colors of the light sensitive strip after it has been exposed to various intensities of light for 24 hours beneath said light filter to provide a comparison with the color change on said light sensitive strip, a legend associated with each color band so that when the band of color most nearly like the color of the exposed light sensitive strip is found the legend associated with said band of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.

Claim 15

The light gauge described in claim 7 wherein each light sensitive strip is provided with an index mark, so that when the pull tab is used so the light sensitive strip moves is out of the envelope until said index mark is adjacent said slit in said support, the light sensitive portion of said strip will be beneath the light filter.

Claim 16

A light gauge for plants comprising a planar support, said support having an upper surface and a lower surface, a disc rotatably mounted on said support beneath said lower surface, the surface of said disc abutting said lower surface of said support covered with a light sensitive material which darkens in proportion to the intensity and duration of light falling on it, said disc opaque to light falling on its opposite surface, at least a sector shaped portion of said support formed from a material which attenuates light passing there-through to serve as a light filter, said sector shaped light filter coaxial with and above said disc, a sector shaped opening cut from said support to serve as a window, said window adjacent said sector shaped light filter whereby after the light gauge has been used the portion of the disc exposed to light beneath the light filter can be rotated to the window where its color can be observed, indicia formed on the periphery of said disc, said support having a recess formed therein to reveal the indicia on the periphery of the disc, said indicia spaced around the periphery of said disc in such a way that each time the disc is rotated until a new indicia appears in said recess a new sector shaped portion of the light sensitive disc not previously exposed to light moves beneath the light filter and an adjacent sector of the disc previously exposed to light moves beneath said window, the light filter material of said support selected so the attenuation of the most intense light likely to be encountered over a 24-hour period prevents the sector shaped portion of the disc beneath the light filter from turning completely dark, bands of colors printed on said support, said bands of colors comprising the darker colors of the sectors of the disc after they have been exposed to various intensities of light for 24 hours beneath said light filter to provide a comparison with the color change on said exposed sector of the disc, a legend associated with each color band so when the band of color most nearly like the color of the exposed sector of the disc is found in a location having a fluctuating light intensity, the legend associated with said band of color identifies the plants which can best grow in that location and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.

Claim 17

A light gauge for plants comprising a planar support, said support having an upper surface and a lower surface, a disc rotatably mounted on said support beneath said lower surface, the surface of said disc abutting said lower surface of said support covered with a light sensitive material which darkens in proportion to the intensity and duration of light falling on it, said disc opaque to light falling on its opposite surface, at least a sector shaped portion of said support formed from a material which attenuates light passing there-through to serve as a light filter, said sector shaped light filter coaxial with and above said disc, a sector shaped opening cut from said support to serve as a window, said window adjacent said sector shaped light filter whereby after the light gauge has been used the portion of the disc exposed to light beneath the light filter can be rotated to the window where its color can be observed, indicia formed on the periphery of said disc, said support having a recess formed therein to reveal the indicia on the periphery of the disc, said indicia spaced around the periphery of said disc in such a way that each time the disc is rotated until a new indicia appears in said recess a new sector shaped portion of the light sensitive disc not previously exposed to light moves beneath the light filter and an adjacent sector of the disc previously exposed to light moves beneath said window, the light filter material of said support selected so the attenuation of the most intense light likely to be encountered over a 24-hour period prevents the sector shaped portion of the disc beneath the light filter from turning completely dark, bands of colors printed on said support, said bands of colors comprising the darker colors of the sectors of the disc after they have been exposed to various intensities of light for 24 hours beneath said light filter to provide a comparison with the color change on said exposed sector of the disc, a legend associated with each color band so when the band of color most nearly like the color of the exposed sector of the disc is found in a location having a fluctuating light intensity, the legend associated with said band of color identifies the plants which can best grow in that location and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.

Claim 18

A light gauge for plants comprising a support, a plurality of strips of light sensitive material which darken in proportion to the intensity and duration of light falling on it mounted on said support in spaced relation to each other, each strip of light sensitive material covered by a strip of material which attenuates light passing through it and serves as a light filter for the strip of light sensitive material beneath it, each strip of material serving as a light filter covered by a strip of material opaque to light and serving as a cover, the cover and said strip of light filter over each strip of light sensitive material connected to said support in such a way that they can be pulled away from the support when the gauge is in use, the characteristics of said light filter such that when the opaque cover strip is pulled away and the gauge is exposed to the most intense light likely to be encountered over a 24 hour period the attenuation of the light by the light filter prevents the strip of light sensitive material from turning completely dark, bands of colors printed on said support, said bands of colors comprising the darker colors of the strips of light sensitive material after they have been exposed to various intensities of light for 24 hours beneath said light filter strip to provide a comparison with the color change on a strip of light sensitive material when the cover strip has been pulled away and the strip of light sensitive material covered by the light filter strip has been exposed to light for 24 hours in a location having a fluctuating light intensity, a legend associated with each band of color so that when the band of color most nearly like the color of the exposed light sensitive strip is found, the legend associated with said band of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.

Claim 19

A light gauge for plants comprising a support, a plurality of strips of light sensitive material which darken in proportion to the intensity and duration of light falling on it mounted on said support in spaced relation to each other, each strip of light sensitive material covered by a strip of material which attenuates light passing through it and serves as a light filter for the strip of light sensitive material beneath it, each strip of material serving as a light filter covered by a strip of material opaque to light and serving as a cover, the cover and said strip of light filter over each strip of light sensitive material connected to said support in such a way that they can be pulled away from the support when the gauge is in use, the characteristics of said light filter such that when the opaque cover strip is pulled away and the gauge is exposed to the most intense light likely to be encountered over a 24 hour period the attenuation of the light by the light filter prevents the strip of light sensitive material from turning completely dark, bands of colors printed on said support, said bands of colors comprising the darker colors of the strips of light sensitive material after they have been exposed to various intensities of light for 24 hours beneath said light filter strip to provide a comparison with the color change on a strip of light sensitive material when the cover strip has been pulled away and the strip of light sensitive material covered by the light filter strip has been exposed to light for 24 hours in a location having a fluctuating light intensity, a legend associated with each band of color so that when the band of color most nearly like the color of the exposed light sensitive strip is found, the legend associated with said band of color identifies the plants which can best grow in that location, and the light gauge provides information as to the illumination requirements for a plant which is to be grown in that location so that the available light can be augmented or subtracted.