G02B26/023

OPTICAL MEASURING DEVICE AND SAFETY DEVICE USED THEREIN
20170299515 · 2017-10-19 · ·

An optical measuring device including a sample placement portion for a measurement sample to be placed therein; a light source portion for emitting a measurement beam toward the measurement sample that is placed in the sample placement portion; and a detector for detecting sample information from a measurement sample that is disposed in the sample placement portion; a cover portion that is able to open and close, for accessing the interior of the sample placement portion, is formed on the sample placement portion; an optical element member for not transmitting light of at least a prescribed wavelength band within the measurement beam; and a driving mechanism that is linked mechanically with the opening and closing of the cover portion to move the optical element member.

Dynamic matrix filter for vehicle image sensor
11256013 · 2022-02-22 · ·

Aspects of the present disclosure include systems, methods, and devices use a controllable matrix filter to selectively obscure regions of an image sensor's field of view. The controllable matrix filter is a physical component that may be placed in front of an image sensor and, in certain situations, one or more regions of the otherwise transparent matrix filter may be selectively configured to have an increased optical density such that the one or more regions become opaque thereby blocking out certain regions of the image sensor's field of view. In this way, the controllable matrix filter may be used to mask out certain regions in an image sensor's field of view that may present processing difficulties for downstream systems that utilize information from the image sensor.

DISPLAY DEVICE
20170287387 · 2017-10-05 · ·

Provided is a display device characterized in that the electric power consumption when optical modulation elements (for example, MEMS shutters) are driven is reduced: A display device (1000) includes a backlight unit (1), a display panel unit (2), a source driver (3), and a controller (4). The backlight unit (1) includes a light source. The display panel unit (2) includes segmented pixel regions AR11 to ARnm each of which includes: a plurality of pixels each of which includes an optical modulation element that performs modulation control with respect to light projected from the backlight unit (1); and a segmented gate driver that controls the optical modulation elements of the pixels. The source driver (3) is a driver that controls the optical modulation elements of the pixels. The controller (4) controls the light source of the backlight unit (1), the segmented gate drivers GD11 to GDnm, and the source driver (3).

COLOR FILTER REGISTERED REFLECTIVE DISPLAY
20170287406 · 2017-10-05 ·

A high efficiency, long life, video rate, electrophoretic display comprises fluid containing sub-pixel structures that are periodic, and aligned with a color filter array. A fluid comprising of electrophoretically mobile particles is compartmentalized at the size scale of the individual filters (one per filter) such that the particles may be moved to either allow light to be returned through the same filter back towards the viewer by total internal reflection (TIR) or conventional reflection to create a light state or to be absorbed by the particles to create a dark state. High reflectance is achieved through the use of structures that avoid ITO layers in the light path and reflecting most light, by virtue of a dual control of light by TIR and transmission to a reflector. In one embodiment the structures are in the shape of truncated pyramids.

Display apparatus and method of driving the same

A transflective display apparatus includes a first electrode and a second electrode, which face each other and are separated from one another by a pixel electrode. In addition, a preparation voltage is applied to the first electrode or the second electrode before applying a driving voltage to the pixel electrode.

Light adjusting apparatus
09778454 · 2017-10-03 · ·

A light adjusting apparatus including a drive section provided with an axial magnet, a coil core member and a coil, a first substrate provided an opening and a first cut-out portion, a second substrate provided with an opening and a second cut-out portion, located at a predetermined distance from the first substrate, an incident light adjusting section to which the axial magnet is joined, and an axial magnet support member provided with a distance keeping portion that keeps a distance between the coil core member and the axial magnet to within a certain range and a dropout prevention portion that prevents dropout of the axial magnet from the first cut-out portion, the axial magnet support member being fixed to the coil core member, in which the incident light adjusting section is rotated by the drive section for adjusting the incident light.

Speckle contrast reduction including high-speed generation of images having different speckle patterns

A speckle reduction system is provided and includes a speckle reduction component and a control module. The speckle reduction component includes electrode layers and a liquid crystal layer. The liquid crystal layer is disposed between the electrode layers and configured to receive light from a coherent light source. The control module is configured to (i) supply a first voltage signal having a first voltage to the electrode layers to provide a first speckle pattern output, and (ii) supply a second voltage signal having a second voltage to the electrode layers to provide a second speckle pattern output, wherein the first voltage and the second voltage are greater than zero. The control module is configured to transition between providing the first voltage signal and the second voltage signal in less than at least one of half an integration time of a human eye or 8 milliseconds.

ILLUMINATION FILTER FOR AN ILLUMINATION FILTER SYSTEM OF A SURGICAL MULTISPECTRAL FLUORESCENCE MICROSCOPE HAVING A SPATIAL FILTER PATTERN
20170234796 · 2017-08-17 ·

The invention relates to an illumination filter (36, 44) for an illumination filter system (2) for medical imaging, in particular multispectral fluorescence imaging, as performed e.g. in a microscope (1) or endoscope, in particular a multispectral fluorescence microscope. The present invention provides an illumination filter for medical imaging, in particular a multispectral fluorescence imaging, that is capable of capturing simultaneously more than one fluorescence signal, and allow a homogeneous illumination for obtaining different images from the object illuminated by comprising a spatial filter pattern (43) masking a defined filtering fraction of a first illumination path (47) on the filter and masking a defined filtering fraction of a second illumination path (48, 49, 50) on the filter, wherein the filtering fraction of the first and the second illumination paths (47, 48, 49, 50) are different. The invention further relates to an illumination filter system (2) for medical imaging, in particular multispectral fluorescence imaging, as performed e.g. in a microscope (1) or endoscope, in particular a multispectral fluorescence microscope, comprising such illumination filter (36, 44).

Display panel and display device including hydrophobic and hydrophilic treatment of substrates

The present invention provides a display panel and a display device which can increase light use efficiency with a simple configuration. An optical modulation layer 30 provided between substrates 10 and 20 contains a polar solvent 31a, a nonpolar solvent 31b, and hydrophilic shape-anisotropic members 32, the hydrophilic substrate 20 makes contact with the polar solvent 31a, the hydrophobic substrate 10 makes contact with the nonpolar solvent 31b, a projected area of the shape-anisotropic members 32 onto the substrates 10 and 20 is changed by adjusting a magnitude of a voltage to be applied to the optical modulation layer 30.

SYSTEM AND METHOD FOR SPATIALLY CONTROLLING AN AMOUNT OF ENERGY DELIVERED TO A PROCESSED SURFACE OF A SUBSTRATE
20220270897 · 2022-08-25 ·

System for spatially controlling an amount of energy delivered to a processed surface of a processed substrate including a first area and a second area, the first area having a first combination of optical properties and thermal properties, and the second area having a second combination of optical properties and thermal properties, the first combination and second combination being different, the system including a light source configured to emit a pulsed light beam towards the processed surface, wherein the pulsed light beam delivers a first amount of energy onto the first area of the processed surface so that the first area reaches a first target temperature, and a second amount of energy to the second area of the processed surface so that the second area reaches a second target temperature. A corresponding method is also described.