JP2015158631A5

JP2015158631A5 -

Info

Publication number: JP2015158631A5
Application number: JP2014034064A
Authority: JP
Filing date: 2014-02-25
Publication date: 2017-03-23
Anticipated expiration: 2034-02-25

Description

（態様Ｈ）
前記態様Ｇにおいて、前記発光部は、レーザー光源２０１Ｒ，２０１Ｇ，２０１Ｂ等の複数の光源からそれぞれ射出される光を合成して射出するものであり、前記光量調整手段として、前記態様Ｅ又はＦに係る光量調整装置を用いたことを特徴とする。
これによれば、偏光フィルタ部材の回転により各光源から射出される光をそれぞれ適切に調整することができる。 (Aspect H)
In the embodiment G, wherein the light emitting unit includes a laser light source 201R, 201G, is intended to exit by combining light emitted from the plurality of light sources 201B and the like, as the light quantity adjusting means, the embodiment E or F The light quantity adjusting device is used.
Accordingly, the light emitted from each light source can be appropriately adjusted by the rotation of the polarizing filter member.

Claims

The amount of light transmitted through the polarization filter member is changed by rotating the polarization filter member that selectively transmits light having a specific polarization direction of the incident light, thereby changing the polarization direction of the light transmitted through the polarization filter member. In the light amount adjustment device for adjusting the
A light transmitting member adjacent to the polarizing filter member;
The surfaces facing each other between the polarizing filter member and the light transmitting member are relatively inclined planes,
The rotation axis of the polarizing filter member is substantially parallel to the normal line of the plane of the polarizing filter member facing the light transmitting member, and the plane of the polarizing filter member facing the light transmitting member is the light amount adjusting device. It is arranged to be inclined with respect to the optical axis of the light incident on
The light transmitting member is a plane facing the polarizing filter member of the light transmitting member and the virtual surface on a virtual surface that is perpendicular to the surface of the polarizing filter member facing the light transmitting member and includes the optical axis. The polarizing filter member of the light transmitting member is inclined so that the intersecting line of the virtual plane and the plane of the polarizing filter member facing the light transmitting member is opposite to the optical axis. The light amount adjusting device is characterized in that a plane facing the surface is inclined with respect to the optical axis.

In the light quantity adjustment apparatus of Claim 1,
The two planes facing each other between the polarizing filter member and the light transmitting member are such that the light reflected between the two planes is arranged on the rear side of the polarizing filter member and the light transmitting member. A light amount adjusting device characterized by being relatively inclined so as to be out of an effective range on a member.

In the light quantity adjustment apparatus of Claim 2,
The two planes facing each other between the polarizing filter member and the light transmission member are relatively inclined so that light reflected between the two planes does not enter the rear-stage optical member. Light quantity adjustment device to do.

In the light quantity adjustment device according to any one of claims 1 to 3,
The light quantity adjusting device, wherein the polarizing filter member is configured such that a rotation axis thereof passes through a substantially center of an effective filter region of the polarizing filter member.

In the light quantity adjustment device according to any one of claims 1 to 4,
The light amount adjusting device, wherein the light transmitting member is a polarization filter fixedly arranged so as to selectively transmit light having a predetermined polarization direction among incident light.

In the light quantity adjustment apparatus of Claim 5,
The light quantity adjusting device, wherein the polarizing filter is arranged so as to transmit a polarized light component having the largest quantity of light in the light incident from the upstream side of the polarizing filter member and the polarizing filter.

In the light irradiation device that irradiates the light emitted from the light emitting unit in the target direction,
A light irradiation device using the light amount adjustment device according to claim 1 as a light amount adjustment means for adjusting an amount of light to be irradiated.

In the light irradiation apparatus of Claim 7,
The light emitting unit is configured to synthesize and emit light emitted from a plurality of light sources,
A light irradiation device using the light amount adjusting device according to claim 5 or 6 as the light amount adjusting means.

In an image display device that displays an image with image light based on image information,
An image display device using the light amount adjusting device according to claim 1 as a light amount adjusting means for adjusting a light amount of the image light.