JP2017072705A5 - - Google Patents

Description

Further, the second frame 55 includes extensions 554 to 557 extending from the respective corners to the outside of the second frame 55. Through holes 5541, 5551, 5561, and 5571 through which the screws S1 are inserted are formed in the extension portions 554 to 557, respectively. The shift element 5 is fixed to the fixing member 360 as shown in FIG. 5 by screwing these screws S1 to the fixing member 360.
With such a configuration, the first frame 54 and the second frame 55 sandwich the frame 52. The frame portion 52, the first frame 54 and the second frame 55 correspond to the holding portion of the present invention.

Claims (12)

Light source,
A light modulation device that modulates light emitted from the light source;
A projection optical device for projecting the light modulated by the light modulation device;
An optical path changing element disposed between the light modulation device and the projection optical device, the light modulated by the light modulation device being incident, and changing the optical path of the light incident by oscillation;
A cooling device for cooling the light modulation device and the light path changing element;
A projector comprising: In the projector according to claim 1,
A plurality of the light modulation devices;
A light combining device that combines and emits the light modulated by the plurality of light modulation devices;
Equipped with
The projection optical device projects the light emitted from the light combining device,
The projector according to claim 1, wherein the optical path changing element is disposed between the light combining device and the projection optical device. In the projector according to claim 2,
The cooling device
A cooling fan for delivering a cooling gas;
A duct member that causes the cooling gas from the cooling fan to flow through the plurality of light modulation devices;
Equipped with
The projector according to claim 1, wherein the duct member has a delivery port for circulating the cooling gas toward the light path changing element. In the projector according to claim 3,
The projector according to claim 1, wherein the duct member includes a branch portion that branches the cooling gas from the cooling fan into the cooling gas flowing to the light modulation device and the cooling gas flowing to the delivery port. In the projector according to claim 3 or 4,
The projector according to claim 1, wherein the transmission port distributes the cooling air to both a light incident side and a light output side of the optical path polarizing element. The projector according to any one of claims 3 to 5
The optical path changing element is
With a permanent magnet,
An optical member that changes the optical path of light that is oscillated and incident by the permanent magnet;
A holder for holding the optical member and the permanent magnet;
A pair of coils disposed in the holding portion sandwiching the permanent magnet;
A coil holding unit that holds the pair of coils and is attached to the holding unit;
Equipped with
The projector according to claim 1, wherein the delivery port is disposed at a position facing the coil holding unit . In the projector according to claim 6 ,
The coil holding portion, the projector characterized by having a heat radiating portion. In the projector according to claim 6 or 7 ,
The said coil holding | maintenance part has an extension part extended to the said delivery port side, The projector characterized by the above-mentioned. The projector according to any one of claims 6 to 8.
The plurality of light modulation devices include a first light modulation device and a second light modulation device disposed at positions facing each other across the light combining device,
The duct member has a first duct for circulating the cooling air to the first light modulation device, and a second duct for circulating the cooling air to the second light modulation device,
The optical path changing element has two coil holders as a first coil holder and a second coil holder.
The first duct has a first delivery port disposed at a position facing the first coil holding portion as the delivery port,
The projector according to claim 1, wherein the second duct has a second delivery port disposed at a position facing the second coil holding portion as the delivery port. In the projector according to claim 9,
The holding portion has an opening into which the optical member is fitted,
The first coil holding portion and the second coil holding portion are disposed at portions of the holding portion facing each other across the opening, and the first light modulation device and the second light modulation device face each other. Are mutually offset in the first direction
The projector according to claim 1, wherein the first outlet and the second outlet are disposed to be mutually offset in the first direction. The projector according to any one of claims 6 to 8 .
The photosynthesis device is
Three incident surfaces on which light is incident through the plurality of light modulation devices;
One exit surface from which the combined light is emitted from the three entrance surfaces;
Have
The duct member is provided corresponding to each of the plurality of light modulation devices, and includes a plurality of ducts for delivering the cooling gas flowing therethrough to the corresponding light modulation device.
Among the plurality of ducts, the ducts corresponding to the light modulation devices disposed on opposite sides of the light combining device sandwich the cooling gas flowing in the inside and send out the cooling gas from the delivery port. A projector having a branch portion. In the projector according to claim 11 ,
The light path changing element has two swing members including the permanent magnet and the pair of coils,
Of the light modulation devices arranged on opposite sides of the light combining device,
One swinging member is disposed on one light modulation device side, and the other swinging member is disposed on the other light modulation device side.
One of the swinging members is disposed at a position opposite to the other swinging member across the optical member as viewed from the light incident direction side with respect to the optical member.