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US 6,310,722 B1Granted
Lenticular lens sheet and projection screen using the same
AssigneeLG Electronics Inc.
InventorJong Soo Baek
Life of this patent
Estimating the term…
Abstract
A lenticular lens sheet for enlarging vertical and horizontal view angles and minimizing a color shift. In the sheet, incident side lenses formed in a half-cylinder shape are arranged in parallel to converge an incident light. The light converged by each of the half-cylinder shaped lenses is diffused in the vertical and horizontal direction by prism shaped output side lenses.
Claims16
A lenticular lens sheet, comprising:
- half cylindrical lenses arranged in parallel to converge incident light;
- a wave guide film for receiving and transmitting the converged incident light from the half cylindrical lenses wherein the wave guide film is formed from a material different from the half cylindrical lenses;
- and
- output side lenses arranged to receive the incident light transmitted by the wave guide film, said output side lenses adapted to diffuse the transmitted incident light in any one of vertical and horizontal directions, wherein each of the output side lenses comprise a light converging face having a rounded lens portion and an inclined planar lens portion;
- wherein the half cylindrical lenses and the output side lenses are formed of a light hardening resin and are arranged on front and rear faces of the wave guide film, respectively.
2 more elements
A lenticular lens sheet, comprising:
- half cylindrical lenses arranged in parallel to converge incident light;
- a wave guide film for receiving and transmitting the converged incident light from the half cylindrical lenses, wherein the wave guide film is formed from a material different from the half cylindrical lenses;
- and
- output side lenses arranged to receive the incident light transmitted by the wave guide film, said output side lenses adapted to diffuse the transmitted incident light in any one of vertical and horizontal directions, wherein each of the output side lenses comprise a light converging face with embossing and a non-converging face;
- wherein the half cylindrical lenses and the output side lenses are formed of a light hardening resin and are arranged on front and rear faces of the wave guide, respectively.
2 more elements
Dependencies are inferred from the claim text.