Projector with housing inserts

Patent metadata

Field	Value
Publication number	US-9316896-B2
Application number	US-201214124485-A
Country	US
Kind code	B2
Filing date	Jun 13, 2012
Priority date	Jun 22, 2011
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A projector ( 1 ) includes a light source device ( 2 ), a light modulating device ( 5 ) that modulates a light beam emitted from the light source device ( 2 ), a projection optical device ( 7 ) that projects the light beam modulated by the light modulating device ( 5 ), a flexible printed circuit board ( 6 ), one end of which is connected to the light modulating device ( 5 ), and a housing ( 8 ) in which the light source device ( 2 ), the light modulating device ( 5 ), and the projection optical device ( 7 ) are housed. In a position in the housing ( 8 ) where the light modulating device ( 5 ) is disposed, a first insert-through section ( 8 L 1 ) for drawing around the flexible printed circuit ( 6 ) board to the outside ( 8 L) of the housing ( 8 ) and a second insert-through section ( 8 D 1 ), through which a part of the light modulating device ( 5 ) is inserted, are formed.

First claim

The invention claimed is:

1. A projector including a light source device, a light modulating device that modulates a light beam emitted from the light source device, and a projection optical device that projects the light beam modulated by the light modulating device, the projector comprising:
a flexible printed circuit board, one end of which is connected to the light modulating device; and
a housing in which the light source device, the light modulating device, and the projection optical device are housed, wherein
in a position in the housing where the light modulating device is disposed, a first insert-through section for drawing around the flexible printed circuit board to an outside of the housing and a second insert-through section, through which a part of the light modulating device is inserted, are formed,
the housing including a first housing section and a second housing section formed separate from each other and combined with each other, and
the light modulating device being disposed in a connecting position of the first housing section and the second housing section.

2. The projector according to claim 1 , wherein
a first insert-through section for drawing around the flexible printed circuit board to an outside of the housing and a second insert-through section ,through which a part of the light modulating device is inserted ,are formed in a position in the housing where the light modulating device is disposed, and
the first insert-through section and the second insert-through section are formed by combining the first housing section and the second housing section.

3. The projector according to claim 2 , further comprising a connecting member that integrates the first housing section and the second housing section.

4. The projector according to claim 3 , wherein
the housing is formed to have a substantially rectangular parallelepiped shape by combining the first housing section and the second housing section, and
the connecting member includes:
a connecting member body attached to a first side surface of the housing to extend over the connecting position; and
a reinforcing section that projects from the connecting member body and is disposed to be opposed to a second side surface different from the first side surface in the housing to extend over the connecting position.

5. The projector according to claim 4 , wherein the first insert-through section is formed on the second side surface.

6. The projector according to claim 3 , wherein
the housing is formed to have a substantially rectangular parallelepiped shape by combining the first housing section and the second housing section,
the connecting member includes a connecting member body attached to a first side surface of the housing to extend over the connecting position,
a first opening for inserting the light modulating device into an inside of the housing is formed on the first side surface,
a part of the light modulating device projects from the first opening in a state in which the light modulating device is housed in the housing, and
a second opening through which the part of the light modulating device projecting from the first opening is inserted is formed in the connecting member body.

7. The projector according to claim 3 , wherein the connecting member is formed of a thermally conductive material and includes a light source connecting section connected to the light source device to be capable of transmitting heat.

8. The projector according to claim 1 , further comprising a connecting member formed of a thermally conductive material and attached to an outer surface of the housing, wherein
an opening for light source is formed in the housing to correspond to a disposed position of the light source device,
the connecting member includes:
a light source connecting section connected to the light source device via the opening for light source to be capable of transmitting heat; and
a first sidewall section and a second sidewall section respectively projecting from end edges opposed to each other in the light source connecting section, and
the housing is disposed in a space surrounded by the light source connecting section, the first sidewall section, and the second sidewall section.

9. The projector according to claim 8 , wherein
a first opening through which a part of the light modulating device is inserted is formed in the housing, and
a second opening cut out to avoid the part of the light modulating device inserted through the first opening is formed in the first sidewall section.

10. The projector according to claim 8 , wherein
the connecting member includes a third sidewall section connected to the light source connecting section, the first sidewall section, and the second sidewall section, and
the housing is disposed in a space surrounded by the light source connecting section, the first sidewall section, the second sidewall section, and the third sidewall section.

11. The projector according to claim 10 , wherein the flexible printed circuit board is drawn around such that the other end separates from the third sidewall section via the first insert-through section.

Assignees

• Kadotani Norikazu
• Nagatani Kaname
• Seiko Epson Corp

Inventors

• Kadotani Norikazu
• Nagatani Kaname

Classifications

• G03B21/145

  Housing details, e.g. position adjustments thereof · CPC title

• G03B21/20 Primary

  Lamp housings · CPC title

• G03B21/2033

  LED or laser light sources · CPC title

• H05K1/189

  characterised by the use of flexible or folded printed circuits · CPC title

• H04N9/315

  Modulator illumination systems (general applications of lighting devices F21V; general optical systems G02B; lamp houses for projectors not peculiar to the presence of an electronic spatial light modulator G03B21/20) · CPC title