Projection device and light valve module thereof
AssigneeYoung Optics Inc.
InventorsWei-Szu Lin, Kang-Hsi Li
Life of this patent
Estimating the term…
Abstract
A light valve module including a first shell, a second shell, a light valve, an elastic pad and a sealant is provided. The first shell has an opening. The second shell is assembled to the first shell. The first shell and the second shell form a containing space therebetween. The light valve is disposed in the containing space and is exposed by the opening. The elastic pad is disposed between the first shell and the second shell for sealing the containing space. The sealant is adhered at a periphery of the opening and the light valve for sealing the containing space. In addition, a projection device having the light valve module is also provided.
Claims18
A light valve module, comprising:
- a first shell having an opening and an annular protruding rib;
- a second shell assembled to the first shell, wherein the first shell and the second shell form a containing space therebetween;
- a light valve disposed in the containing space and exposed by the opening;
- an elastic pad disposed between the first shell and the second shell for sealing the containing space and preventing moisture from entering the containing space, wherein the elastic pad and the second shell are confined in the annular protruding rib;
- and
- a sealant adhered at a periphery of the opening and the light valve for sealing the containing space and preventing the moisture from entering the containing space.
A projection device, comprising:
- a light source capable of emitting an illumination beam;
- an optical module disposed on a transmission path of the illumination beam and having a light valve module, wherein the light valve module is capable of converting the illumination beam into an image beam, and the light valve module comprises:
- a first shell having an opening and an annular protruding rib;
- a second shell assembled to the first shell, wherein the first shell and the second shell form a containing space therebetween;
- a light valve disposed in the containing space and exposed by the opening;
- an elastic pad disposed between the first shell and the second shell for sealing the containing space and preventing moisture from entering the containing space, wherein the elastic pad and the second shell are confined in the annular protruding rib;
- and
- a sealant adhered at a periphery of the opening and the light valve for sealing the containing space and preventing the moisture from entering the containing space;
- and
- a projection lens capable of converting the image beam into a projection beam.
Dependencies are inferred from the claim text.