摘要:
An optical element comprises a gel layer exhibiting a light scattering property when heated and exhibiting transparency when cooled, and the gel layer is sandwiched between a transparent substrate and a transparent protective plate.
摘要:
An variable-focus optical device capable of changing the focal length with excellent responsiveness and reproducibility during repetitive deformation, comprises: an elastomeric member having prescribed viscoelastic characteristics, and an aperture member having an aperture adapted for causing projection or sinking of the elastomeric member therethrough or thereat.
摘要:
An optical recording medium is provided which comprises an optical recording layer provided on a support, said optical recording layer containing a compound modifiable under light irradiation and gelled polymer.
摘要:
A polymer of vinyl-biphenyl derivative comprising recurring units of the formula: ##STR1## wherein X is Cl or Br; a is an integer of 0-4; Y is --CH.sub.3, --OH, --OR, --SR, --SOR, --SO.sub.2 R, --SeR, --SeOR, --SeO.sub.2 R, --TeR, --TeOR, or --TeO.sub.2 R, wherein R is alkyl capable of having a substituent, aryl capable of having a substituent, or ##STR2## and Z is --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --O--, --S--, --SO--, --SeO.sub.2 --, --Te--, --TeO--, or --TeO.sub.2 --; b and c are integers giving the sum of 1 to 5, and c is 1 or more. The polymer has a high refractive index and an excellent transparency. Further, the polymer can have a variable refractive index at a constant Abbe's number.
摘要:
A process for producing a gel fiber comprises a step (N) of spinning a solution containing at least one polymer having at least one monomer unit as a constituent component for a gel to solidify the solution into a fiber, and step (M) of effecting crosslinking of the fiber to form a gel which can be swelled or shrunk reversibly by a thermal action in the presence of a liquid.
摘要:
A biocatalyst such as an enzyme or microbe is immobilized in a polymer gel having a phase transition temperature such that it is capable of reversibly swelling and shrinking by a change in temperature. By lowering the temperature, the polymer gel is caused to swell and a biocatalyst is absorbed therein and by raising the temperature, the polymer gel is caused to shrink and immobilize the biocatalyst. The biocatalyst may then be released by cooling the polymer to cause it to swell. Only a portion of the polymer gel may be subjected to temperature change to immobilize the biocatalyst only in a desired portion.
摘要:
An optical modulating method is provided which comprises heating a heat-sensitive medium comprising a polymeric substance and a liquid with a heat-generating resistor adjacent to the medium, thereby modulating the light incident on the medium at the heated region. The liquid may be heated to the critical solution temperature or higher of the constituent polymeric substance.
摘要:
An organic magnetic member comprises repetition units represented by the following general formula [I]: ##STR1## having at least one of R.sub.1 and R.sub.2 which is a substituted or unsubstituted aromatic ring, or a substituted or unsubstituted heterocyclic ring, and being spontaneously magnetized.