This total light transmittance is higher than conventional total light transmittances (less than 50%).
The transmittance drive values comprise a desired transmittance component and an overdrive component.
Mathematical formula 1 CV(%) = (standard deviation of the total luminous transmittance) / (average value of the total luminous transmittance) X 100
Disclosed is an orthodontic article that includes a fluoropolymer and that exhibits at least about 0.001 % transmittance at 546 nm when measured according to the Transmittance Test Procedure.
The glass composition has at 4.0 mm. thickness: 10 to 55 % light transmittance using Illuminant A, less than 25 % ultra violet transmittance, and less than 50 % infrared transmittance.
This polarizer exhibits high polarization degree and high transmittance capable of suppressing unevenness of transmittance at black display, excelling in thermal stability.
For example, the light quantity limiting filter (16) limits, when transmittance in a blue band is 100%, transmittance in the other bands to 50%.
The method includes the steps of fabricating a filter (56) having a spectrophotometric transmittance and varying the spectrophotometric transmittance of the filter (56) by reducing its cross sectional thickness.
The transmittance period is the period of time that the layer changes transmittance from approximately 100% to approximately 0%.
A shutter control unit (220) sets the lower limit value for light transmittance to which it is possible for the transmittance alteration unit to alter.
By designing a filter (36) accordingly, a transmission spectrum can be achieved having high transmittance within a desired region and very low transmittance elsewhere.
The optical device has two distinct transmittance curves.
A tuneable optical filter having a variable wavelength transmittance.
A transparent display device has improved transmittance.