초록 ▼

The present invention provides a lighting control circuit having an LED that outputs a first signal in response to being exposed to radiation, a detection circuit coupled to the LED. The detection circuit is configured to generate a second signal from the first signal. A driver circuit is coupled to

The present invention provides a lighting control circuit having an LED that outputs a first signal in response to being exposed to radiation, a detection circuit coupled to the LED. The detection circuit is configured to generate a second signal from the first signal. A driver circuit is coupled to the detection circuit, and the driver circuit is configured to generate a third signal to control an illumination level of one or more lights. The third signal is varied in response to the second signal.

대표청구항 ▼

The present invention provides a lighting control circuit having an LED that outputs a first signal in response to being exposed to radiation, a detection circuit coupled to the LED. The detection circuit is configured to generate a second signal from the first signal. A driver circuit is coupled to

The present invention provides a lighting control circuit having an LED that outputs a first signal in response to being exposed to radiation, a detection circuit coupled to the LED. The detection circuit is configured to generate a second signal from the first signal. A driver circuit is coupled to the detection circuit, and the driver circuit is configured to generate a third signal to control an illumination level of one or more lights. The third signal is varied in response to the second signal. .5 to about 1.5, based on the equivalent weight of diamine. 13. The process according to claim 12, wherein the molar ratio of lithium salt to diamine is from about 0.75 to about 1.25, based on the equivalent weight of diamine. 14. The process according to claim 1, wherein the lithium salt is LiNO3. 15. A compound having formula (II) wherein R1and R2are independently C4-22alkyl, C3-18alkenyl, C3-8cycloalkyl, arylC1-8alkyl, or a group having the formula --CmH2m+1(O--CnH2n)x,--CmH2m+1(OC(O)--CvH2v)xor --Z--C6H4(O--CnH2n)x; Z is C1-12alkylene; R3is --CiH2i--, --(CpH2p--O--CpH2p)q, or a mixture thereof; and wherein R4is CH3or hydrogen; i is from about 2 to about 12, p is from about 2 to about 4, q is from 1 to about 10, m is 1-22, n is 2-4, x is 1-15, and v is 4 or 5; provided that R1and R2are different. 16. The compound of claim 15, wherein R1and R2are independently n-butyl, butyl triglycol, 2-ethylhexyl, isotridecyl, oleyl, linoleyl, lauryl, stearyl, cyclohexyl, benzyl, methoxypolyethylene glycol or C4H9--O--C(O)--(CH2)5--. 17. The compound of claim 16, wherein R1and R2are independently n-butyl, butyl triglycol, isotridecyl, methoxypolyethylene glycol 500, methoxypolyethylene glycol 350 or C4H9--O--C(O)--(CH2)5--. 18. The compound of claim 16, wherein R1and R2are independently butyl triglycol, methoxypolyethylene glycol 500 or methoxypolyethylene glycol 350. 19. The compound of claim 15, wherein R3is propyl, hexamethyl, octamethyl, dodecyl, neopentyl, dicyclohexylmethyl, or 3,3'-dimethyl-dicyclohexyl-methyl, meta-xylyl or para-xylyl. 20. The compound of claim 19, wherein R3is, hexamethyl, meta-xylyl or para-xylyl.