I2ic Corporation

Balaji Ganapathy

Udayan Kanade

Sanat Ganu

Manohar Joshi

Gaurav S Kulkarni

Karthikk Sridharan

Manas Alekar

An apparatus and method for providing a light source in the form of a surface are disclosed. In one embodiment, the apparatus comprises a first sheet including a light diffuser, and a light source placed along an edge of the first sheet. The first sheet diffuses light generated by the light source, wherein the distribution of light diffusing particles is varied throughout the light diffuser to emanate a predetermined light pattern.

Apparatus for providing a light source in the form of a surface that allows almost all external light to pass through without being dispersed

An energy efficient light source comprising photoluminescent material and a selective mirror is disclosed. In an embodiment, a first light source emanates light of a particular spectrum, a layer of photoluminescent material surrounding the first light source absorbs light of the spectrum emanated by the first light source and emanates light of a different spectrum, and a selective mirror surrounding the layer of photoluminescent material reflects light emanated by the first light source and transmits light emanated by the photoluminescent material.

Energy efficient light source comprising photoluminescent material and a selective mirror

A method of operating a display with gaps in between the pixels, a primarily transparent backlight and a camera is disclosed. In an embodiment, the method comprises capturing an image in the camera through the primarily transparent backlight and gaps in between the pixels of the transmissive display during a capture period, not capturing an image in the camera during the display period and making the gaps in between the pixels of the transmissive display opaque during the display period.

Method of operating a display with gaps, a backlight and a camera

An apparatus and method for coupling light from concentric illuminators into a light source in the form of a surface are disclosed. According to one embodiment, the apparatus comprises a plurality of concentric tubes, each tube including a light diffuser. The apparatus also has a sheet having a first edge with the plurality of concentric tubes placed along the first edge. Each tube of the plurality of concentric tubes diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.

Energy efficient concentric illuminators for illuminating a sheet

An apparatus and method of manufacturing sheets with varying concentrations of particles are described. In one embodiment, a method comprises manufacturing a first sheet having a varying concentration of particles. A second sheet having a second concentration of particles and a first shape with varying thickness is provided. A third sheet having a third concentration of particles and a second shape with varying thickness is provided. The second sheet and the third sheet are merged to generate the first sheet.

Method of manufacturing of sheets with varying concentrations of particles

A method of manufacturing a multicolored illuminator is disclosed. In an embodiment, a first transparent sheet () comprising light diffusing particles is provided. Second and third transparent cladding sheets () are provided on either sides of the first transparent sheet. A mirror () is provided adjacent to the second sheet. The first sheet, second sheet, third sheet and mirror are merged to give a multicolored illuminator.

Method of manufacturing multicolored illuminator

An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, a camera, and a selective mirror placed between the light source and camera. The selective mirror transmits light of a spectrum detected by the camera and reflects light of a spectrum generated by the light source. The light source is transparent to light incident on its face.

Camera behind a photoluminescent light source

An apparatus and method for extraction of light from a light conducting medium in a preferred emanation pattern are described. In one embodiment, the apparatus comprises a first light conducting sheet including aspherical particles, and a light source placed along the edge of the first sheet. The first sheet diffuses light generated by the light source such that light emanates in a predetermined light emanation pattern.

Extraction of light from a light conducting medium in a preferred emanation pattern

A combined video display and image capture system and method are disclosed. In one embodiment the system alternates between the capture period of the camera () and the image display () period to isolate the camera () from the display (). Various methods are disclosed to achieve the alternation in the capture and the display periods of the system. Distortions in the captured image can be corrected using an image correction subsystem.

System which alternates between displaying and capturing images

An apparatus for providing a multicolored illuminator for displays is disclosed. In one embodiment, the apparatus comprises a first sheet comprising a plurality of columnar illuminators stacked side by side, and a plurality of colored light sources placed along an edge of the first sheet. The plurality of columnar illuminators diffuse light generated by the plurality of colored light sources. Each columnar illuminator has a light diffuser included within it at a concentration that is different at different locations.

Multi-colored illuminator with a varying concentration of particles

A combined video display and camera system is disclosed. According to an embodiment of the present invention, the system comprises a video display with gaps in between the pixels. Light goes through these gaps and enters a camera, which captures an image. The system is arranged such that the display and the gaps are optically out of focus with respect to the camera.

Display with gaps for capturing images

A method and combined video display and camera system are disclosed. In one embodiment, the system comprises a first sheet and a second sheet oriented parallel to the first sheet, the second sheet including a light diffuser. A light source is placed along an edge of the second sheet, wherein the second sheet diffuses light generated by the light source. One or more cameras are placed behind the second sheet to capture an image through the second sheet and the first sheet.

Camera placed behind a display with a transparent backlight

A multicolored linear light source is disclosed. In an embodiment the multicolored linear light source () comprises a linear light source () emanating light of a first spectrum, and regions of photoluminescent material (). The light of the first spectrum interacts with regions of photoluminescent material () to give light of a different spectrum. The composition of different regions of photoluminescent material is different, providing light of different spectra in different regions.

Multicolored linear light source

An apparatus and method for coupling light into a light source in the form of a surface are disclosed. According to one embodiment, the apparatus comprises a linear light source including a light diffuser. The apparatus also has a sheet having a first edge with the linear light source placed along the first edge. The linear light source diffuses light emitted from a primary light source such that the light emanates along the first edge of the sheet. The linear light source is also substantially transparent to light exiting from the first edge of the sheet.

Substantially transparent linear light source

A method of manufacturing a multicolored illuminator is disclosed. In an embodiment, a first transparent sheet comprising light diffusing particles is provided. Second and third transparent cladding sheets are provided on either sides of the first transparent sheet. A mirror is provided adjacent to the second sheet. The first sheet, second sheet, third sheet and mirror are merged to give a multicolored illuminator.

Growing community of inventors

Atlanta, GA, United States of America

Balaji Ganapathy