Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Werner E. L. Haas"'
Autor:
J. Adams, Werner E. L. Haas
Publikováno v:
Applied optics. 7(6)
A new electrophotographic imaging process using mixed cholesteric liquid crystals and a xerographic plate is described. The liquid crystals have a bistable behavior and are switched by the imaging process. For a given angle of illumination and observ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a7a8b42b773f71f1f60e9d71a21dd2b
https://pubmed.ncbi.nlm.nih.gov/20068764
https://pubmed.ncbi.nlm.nih.gov/20068764
Publikováno v:
SPIE Proceedings.
A light valve has been developed that is suitable for high performance video projection displayapplications. This device uses a chalcogenide photoconductor in a resistive mode switchingconfiguration. Resolutions of greater than 1000 lines and video r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2bd237c038f2843783ec86010c5a7c7
https://doi.org/10.1117/12.164725
https://doi.org/10.1117/12.164725
Publikováno v:
SPIE Proceedings.
Single-pass highlight color printers (black plus one color) are advantaged over multi-pass systems in that image throughput is not sacrificed in obtaining the additional color. Furthermore, single exposure systems are advantageous since perfect regis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6351ac986c4675af3e975ce6f15111b9
https://doi.org/10.1117/12.59671
https://doi.org/10.1117/12.59671
Publikováno v:
Molecular Crystals and Liquid Crystals. 25:19-29
Several time-dependent electro-optical properties of a cholesteric-nematic mixture have been investigated. In particular, the dynamics of the Grandjean ⇆⇆ focal conic texture transitions have been characterized. A cholesteric-nematic mixture was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fbaf83f8a95be59b9c0d6cb1d2063fc
https://doi.org/10.1080/15421407408083401
https://doi.org/10.1080/15421407408083401
Autor:
Werner E. L. Haas, Gary A. Dir
Publikováno v:
Applied Physics Letters. 29:325-328
A simple real‐time light valve based on selenium and the cholesteric‐nematic phase transition is described. The device is optically addressed and can be read out in real time with very intense white light sources without need for an optical block
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad50da9dab1cd1c5c29e12722a21f43d
https://doi.org/10.1063/1.89083
https://doi.org/10.1063/1.89083
Autor:
James E. Adams, Werner E. L. Haas
Publikováno v:
Molecular Crystals and Liquid Crystals. 30:1-9
The linear additive law for pitch dependence in binary mixtures of cholesterics (or combinations of ingredients producing cholesterics) is extended to include first order interactive effects. The resulting expression is shown to effectively treat an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ddd6d12d14f7b2450256ed0fecd107a
https://doi.org/10.1080/15421407508082838
https://doi.org/10.1080/15421407508082838
Autor:
Werner E. L. Haas
Publikováno v:
Molecular Crystals and Liquid Crystals. 94:1-31
This paper is a reveiw of thmore sinigicant developments in the liquid crystal display field during the last fifteen years. Major effects and their applications are discussed, and the state-of-the-art is presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0303aa85782a835222852463a7c77696
https://doi.org/10.1080/00268948308084244
https://doi.org/10.1080/00268948308084244
Publikováno v:
Molecular Crystals. 8:9-18
It has been observed that cholesteric liquid crystal films exist in two states both of which exhibit characteristic brilliant colors. A transition between the two states can be caused by a variety of disturbances including mechanical perturbation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79a13f2de2ebcbff4bd4b105f5aa3f18
https://doi.org/10.1080/15421406908084894
https://doi.org/10.1080/15421406908084894
Autor:
Werner E. L. Haas, James E. Adams
Publikováno v:
Molecular Crystals and Liquid Crystals. 16:33-37
An expression is derived which relates the change of pitch of a cholesteric liquid crystal to the stimulus which causes the change. The relationship is a measure of the sensitivity of the cholesteric. The expression applies to mixtures to two or more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae124ab59facf5181714089d2252aac3
https://doi.org/10.1080/15421407208083577
https://doi.org/10.1080/15421407208083577
Autor:
Werner E. L. Haas, James E. Adams
Publikováno v:
Molecular Crystals and Liquid Crystals. 15:27-35
Pitch versus composition data in a binary mixture of a cholesteric and a room-temperature nematic are used to demonstrate that molecular influence in pitch determination is more linear when credited according to weight percent than when credited acco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90b8a4b47f71bfcad24bfe1d7bdd92d2
https://doi.org/10.1080/15421407108083221
https://doi.org/10.1080/15421407108083221