Apparatus and Method for Providing a Multi-Stage Light Treatment
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Abstract
Apparatus and methods for treating psychiatric disorders, mood disorders and circadian rhythm disorders with a multi-stage light protocol are disclosed. The presently disclosed multi-stage light protocol provides a synergistic treatment including up to 4 types of therapies: bright light therapy, extended sleep deprivation therapy, dawn simulation therapy and short to medium wavelength light therapy. According to some embodiments, the first stage of the protocol includes a first time window of 20 minutes during which, for a majority of the time, the light intensity is between 50 lux and 2000 lux. According to some embodiments, the second stage of the protocol includes a second time window of at least 90 minutes during which, for every 10 minute period within the second time window, for a majority of the time, the light intensity is exceeds 100 lux. According to some embodiments, the third stage of the protocol includes a third time window of 60 minutes during which, for a majority of the time, the light intensity exceeds 2000 lux In some embodiments, the light is provided by apparatus including a plurality of LEDs. Typically, the light includes white light having a broad spectrum. In some embodiments, the light further includes light having a medium wavelength, for example, wavelengths between 520 nm and 535 nm.
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Citations
189 Claims
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1-132. -132. (canceled)
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133. Apparatus comprising:
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a) a light source; and
b) a controller said controller operative to;
i) effect, using said light source, a first stage of light emission including a first time window of 20 minutes during which, for a majority of the time of said first time window, the light intensity at a predetermined distance is equal to at least a low-intensity minimum value of at least about 50 lux and is equal to at most a low-intensity maximum value of at most about 2000 lux;
ii) to effect, subsequent to said first time window, using said light source, a second stage of light emission including a second time window of at least 60 minutes wherein for every 45 minute sub-window within said second time window, the light intensity at said predetermined distance, for a majority of the time of said sub-window, is equal to at least a second minimum value of at least about 100 lux; and
iii) to effect, subsequent to said second time window, using said light source, a third stage of light emission including a third time window of at least 20 minutes during which, for a majority of the time of said third time window, the light intensity at said predetermined distance is equal to at least a high-intensity minimum value of at least about 2000 lux. - View Dependent Claims (134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163)
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164. A method of providing a multi-stage light protocol, the method comprising:
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a) subjecting a patient to a first stage of light treatment, said first stage including a first time window of 20 minutes during which, for a majority of the time of said first time window, the light intensity is equal to at least a low-intensity minimum value of at least about 50 lux and is equal to at most a low-intensity maximum value of at most about 2000 lux;
b) subsequent to said first time window, subjecting said patient to a second stage of light treatment including a second time window of at least 60 minutes wherein for every 45 minute sub-window within said second time window the light intensity, for a majority of the time of said sub-window, is equal to at least a second minimum value of about at least lux; and
c) subsequent to said second time window, subjecting said patient to a third stage of light treatment including a third time window of 20 minutes during which, for a majority of the time of said third sub-window, the light intensity is equal to at least a high-intensity minimum value of at least about 2000 lux. - View Dependent Claims (165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188)
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189. A computer readable storage medium having computer readable code embodied in said computer readable storage medium, said computer readable code comprising instructions for adjusting an intensity parameter of alight source to:
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i) effect, using said light source, a first stage of light emission including a first time window of 20 minutes during which, for a majority of the time of said first time window, the light intensity at a predetermined distance is equal to at least a low-intensity minimum value of at least about 50 lux and is equal to at most a low-intensity maximum value of at most about 2000 lux;
ii) to effect, subsequent to said first time window, using said light source, a second stage of light emission including a second time window of at least 60 minutes wherein for every 45 minute sub-window within said second time window, the light intensity at said predetermined distance, for a majority of the time of said sub-window, is equal to at least a second minimum value of at least about 100 lux; and
iii) to effect, subsequent to said second time window, using said light source, a third stage of light emission including a third time window of at least 20 minutes during which, for a majority of the time of said third time window, the light intensity at said predetermined distance is equal to at least a high-intensity minimum value of at least about 2000 lux, wherein said predetermined distance is a distance selected from the group consisting of 20 cm, 30 cm, 45 cm, 55 cm, 70 cm, and 100 cm.
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Specification