Abstract: An image processing device includes signal processors, a second-control-signal generator that generates second control signals in accordance with first control signals generated by the signal processors, and an image synthesizer. Each signal processor includes a first digital processor for performing image adjustment and a second digital processor. The second digital processor includes a defect detector that detects a defective pixel and a defective pixel adaptation processor that generates, in accordance with the result of defective pixel detection, the first control signal specifying a synthesis coefficient to the second-control-signal generator. In accordance with synthesis coefficients indicated by the second control signals, the image synthesizer synthesizes images that have undergone the image adjustment by the first digital processors of the signal processors.

Abstract: The present invention provides a porphyrin derivative having improved water solubility, desirably having both water solubility and lipophilicity. Specifically, the present invention provides a water-soluble porphyrin consisting of a tetraphenylporphyrin derivative represented by Formula (1): wherein m represents an integer of 1 to 30; n represents an integer of 2 to 4; R represents a hydrogen atom or an optionally substituted alkyl or aromatic group; Ph represents an optionally substituted phenyl group; and X? is a counterion and represents a halide ion, PF6?, or BF4?.

Abstract: The present invention provides a porphyrin derivative having improved water solubility, desirably having both water solubility and lipophilicity. Specifically, the present invention provides a water-soluble porphyrin consisting of a tetraphenylporphyrin derivative represented by Formula (1): wherein m represents an integer of 1 to 30; n represents an integer of 2 to 4; R represents a hydrogen atom or an optionally substituted alkyl or aromatic group; Ph represents an optionally substituted phenyl group; and X? is a counterion and represents a halide ion, PF6?, or BF4?.

Abstract: A novel organic ultrathin membrane characterized in that an amphiphilic compound having a pigment group and a nucleic acid base is aligned due to base-pairing with an oligonucleotide which is capable of forming a base pair with the nucleic acid base to thereby constitute a monolayer is provided. In this organic ultrathin membrane, free space is provided around a pigment molecule so as to enable photoisomerization of the pigment molecule in a high-density solid state. Thus, it is useful as an optical memory, etc. Further, a process for producing the organic ultrathin membrane is provided.