WO2021235098A1

WO2021235098A1 - Light source device and projection-type display device

Info

Publication number: WO2021235098A1
Application number: PCT/JP2021/013332
Authority: WO
Inventors: 憲子挺屋; 高寛都丸
Original assignee: ソニーグループ株式会社
Priority date: 2020-05-20
Filing date: 2021-03-29
Publication date: 2021-11-25
Also published as: JPWO2021235098A1; TW202144894A

Abstract

A light source device according to one embodiment of the present disclosure comprises: multiple solid-state light sources; collimator lenses that parallelize the advancing direction of light emitted from the solid-state light sources and emit the light; and holding members that are connected to the side surfaces of the solid-state light sources and hold the collimator lenses.

Description

Light source device and projection type display device

The present disclosure relates to, for example, a light source device in which a plurality of solid-state light sources are arranged in an array and a projection type display device including the light source device.

For example, Patent Document 1 discloses a lighting system in which a light emitting element such as a semiconductor laser is arranged on a plane and then a parallelizing lens is provided to adjust the lighting direction.

International Publication No. 2016/033670

By the way, in a light source device in which a plurality of solid light sources are arranged in an array, improvement in brightness is required.

Therefore, it is desirable to provide a light source device and a projection type display device capable of improving the brightness.

The light source device of one embodiment of the present disclosure is connected to a solid-state light source, a collimator lens that emits light emitted from the solid-state light source in parallel in the traveling direction, and a collimator lens, and holds the collimator lens. It is provided with a plurality of holding members.

The projection type display device of one embodiment of the present disclosure includes a light source device, a light modulation element that modulates the light emitted from the light source device, and a projection optical system that projects light from the light modulation element. be. The light source device mounted on this projection type display device has the same components as the light source device according to the embodiment of the present disclosure.

In the light source device of one embodiment and the projection type display device of one embodiment of the present disclosure, a plurality of solid-state light sources in which a holding member for holding a collimator lens is connected to a side surface are used. This efficiently extracts the amount of light from the solid-state light source and facilitates the adjustment of the uniformity of the illumination projected from the projection type display device.

It is sectional drawing (A) and plan view (B) which show the structural example of the light source apparatus which concerns on embodiment of this disclosure. It is a perspective view which shows the structure of the light source part shown in FIG. It is a side view of the light source part shown in FIG. 2A. It is a top view of the light source part shown in FIG. 2A. It is a bottom view of the integrated collimator lens and holder shown in FIG. 2A. It is sectional drawing which shows an example of the structure of the light source part shown in FIG. 2A. It is a top view (A) and a side view (B) showing another example of the holder shown in FIG. It is a top view which shows the other example of the holder shown in FIG. It is a figure which shows an example of the planar shape of the base plate shown in FIG. It is a figure showing the shape of the mirror shown in FIG. 1 and the holder thereof. It is a figure explaining the method of integrating the light emitting element, the collimator lens and the holder shown in FIG. 2A. It is a figure explaining the attachment of the light source part to the base plate shown in FIG. It is a schematic diagram which shows an example of the structure of the optical system of the projection type display device of this disclosure.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The following description is a specific example of the present disclosure, and the present disclosure is not limited to the following aspects. Further, the present disclosure is not limited to the arrangement, dimensions, dimensional ratio, etc. of each component shown in each figure. The order of explanation is as follows.
1. 1. Embodiment (Example of a light source device fixed via a light emitting element, a collimator lens, and a holder and provided with a plurality of light source units)
1-1. Configuration of light source device 1-2. Adjustment method of light source device 1-3. Configuration of projection type display device 1-4. Action / effect 2. Modification example

<1. Embodiment>
FIG. 1 shows a cross-sectional configuration (A) and a planar configuration (B) of a light source device (light source device 100) according to an embodiment of the present disclosure. The light source device 100 is used, for example, as a light source for a projection type display device (projection type display device 1, see FIG. 10) described later.

(1-1. Configuration of light source device)
The light source device 100 includes a plurality of light source units 100A in which a light emitting element 110, a collimator lens 120, and a holder 130 holding the light emitting element 110 and the collimator lens 120 are integrated as shown in FIG. 2A, for example. It is a thing. The plurality of light source units 100A are arranged in an array on the plate 150 via the base plate 140, for example. The light source device 100 further includes

mirrors

160, 170, 180 for adjusting the optical axis of the light (laser light L) emitted from each light source unit 100A, and these light source units 100A and

mirrors

160, 170, 180. Is housed in, for example, a housing 190.

FIG. 2A is a perspective view showing the structure of the light source unit 110A, and FIG. 2B shows the side structure of the light source unit 110A shown in FIG. 2A. 2C is a top view of the light source unit 110A shown in FIG. 2A, and FIG. 2D is a bottom view of the light source unit 110A shown in FIG. 2A excluding the light emitting element 110. As described above, the light source unit 100A includes a light emitting element 110, a collimator lens 120, and a holder 130. FIG. 3 shows an example of the cross-sectional configuration of the light source unit 110A shown in FIG. 2A.

As the light emitting element 110, for example, a semiconductor laser (Laser Diode: LD) that emits light in a predetermined wavelength range can be used. The light emitting element 110 is, for example, a CAN type LD package. The light emitting element 110 corresponds to a specific example of the "solid-state light source" of the present disclosure. In addition, as the light emitting element 110, a light emitting diode (Light Emitting Diode: LED) may be used.

As shown in FIG. 3, the CAN type LD package includes, for example, an LD chip 111, a metal base 112, a metal cap 113 that airtightly seals the LD chip 111 on the base 112, and a lead terminal. It has 114 and. The LD chip 111 is fixed to the base 112 via, for example, a submount 115, and is electrically connected to the lead terminal 114, for example, via a bonding wire (not shown). An optical extraction window 113A for taking out the laser beam L emitted from the LD chip 111 is provided on the upper portion of the cap 113, and the optical extraction window 113A is covered with a cover glass 116 provided inside the cap 113. There is.

For example, a plurality of grooves 112X, 112Y1, 112Y2 are provided on the side surface of the base 112. The groove 112X confirms the phase of the laser beam L emitted from the LD chip 111. The grooves 112Y1 and 112Y2 are used when adjusting the light emitting element 110 and the collimator lens 120, which will be described later, and are provided at positions facing each other, for example.

The collimator lens 120 emits the laser beam L emitted from the light emitting element 110 in parallel in the traveling direction. The collimator lens 120 has, for example, a lens portion 121 having a curved surface shape, and a peripheral edge portion 122 having a flat surface provided on the peripheral edge of the lens portion 121.

The holder 130 is for fixing the beam shape of the light emitting element 110 and the phase of the collimator lens 120 and connecting them to each other, for example. This holder 130 corresponds to a specific example of the "holding member" of the present disclosure.

Specifically, the holder 130 has, for example, a recess 130X that houses a part of the collimator lens 120 and the light emitting element 110 in this order. The recess 130X is composed of, for example, two recesses 130X1 and 130X2, and a recess 130X1 in which the collimator lens 120 is housed is further provided in the center of the recess 130X2.

The recess 130X1 has substantially the same shape as the outer shape of the collimator lens 120, for example. This makes it possible, for example, to fix the phase of the collimator lens 120 when it has a cylindrical shape, for example. Further, the bottom of the recess 130X1 is provided with an opening 130H in which the lens portion 121 of the collimator lens 120 is exposed, and the laser beam L1 incident from the light emitting element 110 and collimated by the collimator lens 120 passes through the opening 130H. It is designed to be taken out. A plurality of through holes 131 are provided on the side surface of the recess 130X1, and the collimator lens 120 is adhesively fixed to the holder 130 by applying the adhesive 133 to the through holes 131.

The recess 130X2 has, for example, the outer shape of the light emitting element 110, specifically, substantially the same shape as the cap 113. Similar to the side surface of the recess 130X1, a plurality of through holes 132 are provided on the side surface of the recess 130X2, and by applying the adhesive 133 to the through holes 132, the side surface of the light emitting element 110, specifically, the side surface of the light emitting element 110 is provided. , The side surface of the cap 113 and the holder 130 are adhesively fixed. As a result, the light emitting element 110 and the collimator lens 120 are connected via the holder 130.

The holder 130 is further processed with a part of the holder 130 so that the phase of the collimator lens 120 can be confirmed from the outside when the collimator lens 120 has a cylindrical shape. Specifically, for example, as shown in FIGS. 2A to 2D, a part of the holder 130 in which the recess 130X1 is formed is removed within the range where the collimator lens 120 can be fixed. This makes it possible to confirm the shape of the peripheral edge portion 122 of the collimator lens 120.

Further, on the holder 130, for example, as shown in FIGS. 2C and 2D, the phase of the laser beam L emitted from the collimator lens 120 can be confirmed when a plurality of light source units 100A are arranged on the base plate 140 described later. A notch 134 may be provided. Further, the holder 130 may be formed with a chamfer 135 so that the light source unit 100A can be arranged on the base plate 140 at a narrower pitch, as shown in FIGS. 2C and 2D, for example.

The holder 130 is not limited to the above shape, and may be, for example, a shape as shown in FIGS. 4 (A), 4 (B) and 5. For example, when the collimator lens 120 does not have a cylindrical shape, or when it is not necessary to consider interference with other members constituting the light source device 100, for example, when assembling the light source device 100, FIG. 4 (A), As shown in (B), it is not always necessary to remove a part of the holder 130. This increases the mechanical strength of the holder 130. Further, the holder 130 may have a circular shape as shown in FIG. 5, for example.

The base plate 140 is for positioning a plurality of light source units 100A arranged in an array and fixing the phase of the laser beam L emitted from the light source unit 100A. Specifically, as shown in FIG. 6, for example, the base plate 140 has a plurality of openings 141 in which a light source unit 100A is arranged in a plane and holds a side surface of a base 112 of a light emitting element 110, and each opening 141. A convex portion 142 that protrudes inward and fits into the groove 112X provided in the base 112 of the light emitting element 110 is provided. The base plate 140 is further provided with a plurality of screw holes 143 and 144. The screw holes 143 are for fixing the housing 190, for example, and the screw holes 144 are for fixing the plate 150 and the housing 190, for example, and the plates 150 and the housing 190 are fixed through the screw holes 143 and 144. Are screwed together. This base plate 140 corresponds to a specific example of the "first support substrate" of the present disclosure.

The plate 150 supports the light emitting element 110 and the base plate 140, and functions as a heat radiating member that diffuses the heat generated in the light emitting element 110. The plate 150 is, for example, a plate-shaped member having a pair of facing surfaces, and is made of, for example, a material having high thermal conductivity such as copper (Cu) and aluminum (Al). A base plate 140 is fixed to one surface (surface 150S1) of the plate 150 via a screw hole 144. Further, the light emitting element 110 is adhesively fixed to the surface 150S1 via the opening 141 of the base plate 140 via a heat dissipation assisting agent such as silicon grease. This plate 150 corresponds to a specific example of the "second support substrate" of the present disclosure.

The plate 150 is further provided with a through hole 151 through which the lead terminal 114 of the light emitting element 110 is passed and a groove (not shown) for installing a wiring board for electrically connecting the light emitting element 110. .. Further, the surface 150S2 may be further provided with a heat radiating member including, for example, a plurality of fins.

The

mirrors

160, 170, 180 reflect the laser light L emitted from a plurality of light emitting elements 110 arranged in an array on the plate 150 in a predetermined direction, and the lasers emitted from each light emitting element 110. They are arranged in this order on the optical path of the light L.

The mirror 160 is arranged one by one in each row as a common mirror for a plurality of (three in FIG. 1) light emitting elements 110 arranged in parallel in the Y-axis direction (column direction), for example. As shown in FIG. 7, for example, the mirror 160 is held by a holder 161 having a shaft 162 at both ends, and by rotating the shaft 162, the angle of the reflecting surface of the mirror 160 is adjusted, and each light emitting element. The angle of the light beam emitted from the 110 and traveling in the X-axis direction of the laser beam L can be adjusted.

The laser beam L emitted from each light emitting element 110 is reflected in the order of the

mirrors

160, 170, 180, and is emitted toward the integrator optical system described later. The

mirrors

160, 170, and 180 are attached to, for example, the housing 190, respectively.

As described above, the housing 190 accommodates a plurality of light source units 100A and mirrors 160, 170, 180, and is fixed to the base plate 140 and the plate 150 via, for example, screw holes 143.

Grooves

191, 192, and 193 having different depths are provided on the pair of side surfaces of the housing 190 facing the Y-axis direction at positions corresponding to the light emitting elements 110 arranged in parallel in the X-axis direction, respectively. Has been done. By passing the shafts 162 provided at both ends of the holder 161 holding the mirror 160 through the

grooves

191, 192, 193, each mirror 160 is placed above each light emitting element 110 at a different height for each row. Be placed.

(1-2. Adjustment method of light source device)
The optical axis direction, phase, and spot shape of the laser beam L emitted from each light source unit 100A are adjusted as follows.

First, for example, as shown in FIG. 8, the light emitting element 110 is fixed to the holder 130 to which the collimator lens 120 is adhesively fixed in accordance with the phase of the collimator lens 120. The phase of the collimator lens 120 fixed to the holder 130 and the X-axis direction, Y-axis direction, and Z-axis direction of the light emitting element 110 can be adjusted by using, for example, an XYZ stage or the like.

For example, after inserting the holder of the XYZ stage into each of the grooves 112Y1 and 112Y2 provided on the side surface of the base 112 of the light emitting element 110 to fix the light emitting element 110, the collimator lens 120 is adhesively fixed by using an adjusting jig. Adjust the three axes of the holder 130. Specifically, for example, after fixing the light emitting element 110, the spot shape of the laser beam L emitted from the light emitting element 110 is monitored by a camera so that the spot shape of the laser beam L becomes a predetermined shape. The holder 130 is adjusted in the Z-axis direction and the XY directions using an adjusting tool. After that, the adhesive 133 is applied to the through hole 132 of the holder 130 to bond and fix the light emitting element 110 to the holder 130. As a result, the variation in the spot shape of the laser beam among the light source units 100A is reduced.

Next, as shown in FIG. 9, for example, a light source in which a light emitting element 110, a collimator lens 120, and a holder 130 are integrated in each opening 141 of a base plate 140 fixed on the plate 150 via a screw hole 144. The unit 100A is arranged. At this time, by fitting the convex portion 142 provided in each opening 141 and the groove 112X provided in the base 112 of the light emitting element 110, the light is emitted from each light source portion 110A arranged in each opening 141. It is possible to align the phases of the laser beams L.

Further, in the present embodiment, when the light emitting element 110 is fixed to the holder 130 to which the above-mentioned collimator lens 120 is adhesively fixed, the variation in the spot shape of the laser beam among the light source units 100A is reduced. Therefore, the thickness of the heat dissipation assisting agent when fixing each light source unit 100A to the plate 150 can be made uniform and the minimum thickness. This makes it possible to efficiently dissipate the heat generated in the light emitting element 110 by emitting the laser beam L. Further, the light emitting surfaces of the light emitting elements 110 on the plate 150 (for example, the upper surface of the cap 113) are substantially the same height as each other.

From the above, the Z-axis direction (vertical direction), the phase, and the spot shape of the laser beam L emitted from each light source unit 100A are adjusted. The adjustment of the laser beam L in the Y-axis direction (left-right direction) is performed, for example, in a housing (not shown) accommodating each optical system such as the integrator optical system 200, the image forming unit 300, and the projection optical system 400, which will be described later. The light source device 100 can be adjusted by sliding it in the Y-axis direction. As a result, for example, the laser beam L can be accurately focused on each lens element of the pair of fly-eye lenses 212 constituting the integrator optical system 200.

(1-3. Configuration of projection type display device)
FIG. 10 is a schematic view showing an example of the overall configuration of the optical system constituting the projection type display device (projection type display device 1) according to the embodiment of the present disclosure. The projection type display device 1 is a reflection type single plate type projection type display device that spatially modulates with a reflective liquid crystal display (LCD).

As shown in FIG. 10, the projection type display device 1 includes, for example, a light source device 100R that emits red light Lr, a light source device 100BG that emits blue light Lb and green light Lg, an integrator optical system 200, and an image. The forming portion 300 and the projection optical system 400 are provided in order.

The light source devices 100R and 100BG are, as light emitting elements 110, a semiconductor laser that emits light in the wavelength range corresponding to red (red light Lr) and a semiconductor that emits light in the wavelength range corresponding to blue (blue light Lb), respectively. It is a light source device 100 using a laser and a semiconductor laser that emits light in a wavelength range corresponding to green (green light Lg).

The integrator optical system 200 has, for example, a dichroic mirror, a pair of fly-eye lenses, one or a plurality of condenser lenses, and the like.

The image forming unit 300 has, for example, a polarizing beam splitter 311 and a reflective liquid crystal panel 312.

The polarization beam splitter 311 selectively transmits specific polarized light (for example, P-polarized light) and selectively reflects the other polarized light (for example, S-polarized light). As a result, the illumination light (for example, S-polarized light) incident from the integrator optical system 200 is selectively reflected and incident on the reflective liquid crystal panel 312, and the image light (for example, P-polarized light) emitted from the reflective liquid crystal panel 312 is emitted. ) Is selectively transmitted and incident on the projection optical system 400.

The reflective liquid crystal panel 312 modulates the illumination light (red light Lr, blue light Lb, green light Lg) emitted from the light source devices 100R and 100BG based on a video signal supplied from a display control unit (not shown). By reflecting it, image light is emitted.

The projection optical system 400 has, for example, one or a plurality of projection lenses 410 and the like. The projection optical system 400 enlarges the image light from the image forming unit 300 and projects it onto the screen 500 or the like.

(1-4. Action / Effect)
The light source device 100 of the present embodiment uses, as the light source, a plurality of light emitting elements 110 to which the holder 130 holding the collimator lens 120 is connected to the side surface thereof. This efficiently extracts the amount of light from the light emitting element 110 and facilitates the adjustment of the uniformity of the illumination projected from the projection type display device. This will be described below.

As described above, as a method of adjusting the illumination direction of the LD, a method of arranging the LD on a plane and then providing a parallelizing lens has been reported. However, with such an adjustment method, it becomes difficult to adjust the parallelizing lens for each LD depending on the arrangement shape of the LDs. In addition, since a space for adjustment is required, it becomes a problem in realizing the miniaturization of the device. Further, if the parallelizing lens is not adjusted, the adjustment for each LD cannot be performed, and as a result, the number of LDs is increased in order to secure the required amount of light, and the size of the light source device becomes large. Occurs.

On the other hand, in a projection type display device in which a plurality of packaged LDs are arranged in a plane, the position of each packaged LD is generally adjusted in the housing with reference to the parallelized lens. Therefore, it is expected that the flatness of the terminal surface that mainly dissipates the heat of the LD is likely to vary. This variation in the flatness of the terminal surface results in a variation in the distance between the base material fixing the LD and the terminal surface of the LD, resulting in variations in the heat transfer state among the plurality of LDs, and there is a concern that the heat dissipation performance may be deteriorated. Further, when the parallelizing lens is adjusted with reference to the LD, the structure is such that only the adjustment in the optical axis direction is possible, and it is difficult to perform accurate alignment between the LDs.

On the other hand, in the present embodiment, a plurality of light emitting elements 110 to which the holder 130 holding the collimator lens 120 is connected to the side surface are used as a light source (light source unit 100A). The light source unit 100A adjusts the collimator lens 120 with reference to the light emitting element 110, specifically, the phase of the collimator lens 120 and the beam shape of the laser beam L emitted from the light emitting element 110. Therefore, the variation in the flatness of the terminal surface (the back surface of the base 112) between the light emitting elements 110 is reduced. Further, the collimator lens 120 can be controlled in a direction other than the optical axis direction. In addition, the variation that needs to be adjusted is only the individual difference between the light emitting element 110 and the collimator lens 120, so that the adjustment is easy.

As described above, in the light source device 100 of the present embodiment, the adjustment accuracy between the light emitting element 110 and the collimator lens 120 is improved. Therefore, in the projection type display device 1 equipped with this, the amount of light of the light emitting element 110 can be efficiently taken out, and the uniformity of the illumination projected from the projection type display device 1 can be easily adjusted to improve the brightness. It is possible to make it.

Further, in the light source device 100 of the present embodiment, as described above, the variation in the flatness of the terminal surface (the back surface of the base 112) between the light emitting elements 110 is reduced, so that the light source unit 100A (specifically, the back surface of the base 112) is reduced. , The thickness of the heat dissipation assisting agent for fixing the light emitting element 110) to the plate 150 can be reduced. Therefore, it is possible to sufficiently secure heat dissipation.

Further, in the light source device 100 of the present embodiment, since the light emitting element 110 and the collimator lens 120 can be adjusted outside the projection type display device 1, a space for adjustment is provided inside the projection type display device 1. There is no need to secure. Therefore, it is possible to realize the miniaturization of the projection type display device 1.

Furthermore, in the light source device 100 of the present embodiment, since a general solid-state light source can be used as the light emitting element 110, the selectivity and versatility of the wavelength and the like of the laser beam L are improved. Therefore, it becomes possible to adjust each part with common equipment, and it becomes possible to reduce the manufacturing cost.

Furthermore, the light source device 100 of the present embodiment has an opening 141 for arranging a plurality of light source units 100A in an array and a convex portion 142 for fixing the phase of the laser beam L emitted from each light source unit 100A. Since the base plate 140 is provided and the plurality of light source units 100A are fixed to the plate 150 via the base plate 140, it is possible to reduce the variation in the arrangement position and the phase between the light source units 100A.

As described above, in the light source device 100 of the present embodiment, the adjustment of the light emitting element 110 and the collimator lens 120, the arrangement of each light source unit 100A, and the phase of the laser beam L emitted from each light source unit 100A are individually adjusted. As described above, the adjustment time is shortened and more accurate adjustment is possible as compared with the case where each part is adjusted in the housing of the projection type display device.

<2. Modification example>
Although the embodiments have been described above, the present disclosure is not limited to the above embodiments, and various modifications can be made. For example, the projection type display device 1 exemplified in the above embodiment is an example, and the arrangement and number of components of each

optical system

200, 300, 400 are merely examples, and it is necessary to include all the components. It may also have other components. For example, in the above embodiment, an example is shown using a reflective liquid crystal panel as a space modulation element, but the present invention is not limited to this, and for example, a transmissive liquid crystal panel or a digital micromirror device (DMD). : It can also be applied to a projector using a Digital Micro-mirror Device) or the like.

Further, the light source device 100 according to the present disclosure can also be applied to a device that is not a projection type display device. For example, the light source device 100 of the present disclosure may be used for lighting purposes, and can be applied to, for example, a headlamp of an automobile or a light source for lighting up.

It should be noted that the effects described in the present specification are merely examples and are not limited to the description thereof, and other effects may be obtained.

The present technology can also have the following configurations. According to this technology having the following configuration, since a plurality of solid-state light sources in which the holding member for holding the collimator lens is connected to the side surface are used, the amount of light of the solid-state light source can be efficiently extracted and projected from the projection type display device. It is possible to easily and accurately adjust the uniformity of the illumination to be applied. Therefore, it is possible to improve the brightness of the light source device and the projection type display device provided with the light source device.
(1)
With a solid light source,
A collimator lens that parallelizes the traveling direction of the light emitted from the solid-state light source and emits the light.
A light source device that is connected to the side surface of the solid light source and includes a plurality of holding members that hold the collimator lens.
(2)
The light source device according to (1) above, wherein the holding member has an opening having the same shape as at least a part of the outer shape of the collimator lens.
(3)
The light source device according to (1) or (2) above, further comprising a first support substrate for fixing the phase of light emitted from the solid-state light source.
(4)
The holding member has a notch capable of confirming the phase of the light emitted from the solid-state light source when the solid-state light source is fixed to the first support substrate, according to the above (3). Light source device.
(5)
Further with a second support substrate having one and another facing surfaces,
The light source device according to (3) or (4), wherein the solid light source and the first support substrate are arranged on the one surface of the second support substrate.
(6)
The light source device according to any one of (1) to (5), further comprising a mirror arranged in the optical axis direction of the light emitted from the solid light source and controlling the optical axis of the light.
(7)
The solid light source has a light source portion, a support portion that supports the light source portion, and a housing that covers the light source portion.
The light source device according to any one of (1) to (6) above, wherein the holding member is adhesively fixed to the side surface of the housing.
(8)
Further, a first support substrate for fixing the phase of the light emitted from the solid-state light source is provided.
The light source device according to (7), wherein the first support substrate holds a side surface of the support portion of the solid light source.
(9)
The first support substrate has an opening corresponding to the support portion of the solid light source, and by arranging the support portion in the opening, the side surface of the support portion is held. ). The light source device.
(10)
The light source device according to (9) above, wherein the support portion and the opening portion each have a groove portion and a convex portion that are fitted to each other.
(11)
Further with a second support substrate having one and another facing surfaces,
The first support substrate is arranged on the one surface of the second support substrate, and the first support substrate is arranged.
The light source device according to (9) or (10), wherein the solid light source is in contact with the one surface of the second support substrate through the opening of the first support substrate.
(12)
The light source device according to any one of (1) to (11), wherein the light emitting surfaces of the plurality of solid light sources have the same height as each other.
(13)
Any of the above (5) to (12), the surface of the solid light source opposite to the light emitting surface is fixed to the one surface of the second support substrate via a heat dissipation assisting agent. The light source device according to one.
(14)
The light source device according to any one of (5) to (13), wherein a heat radiating member is further provided on the other surface of the second support substrate.
(15)
Light source device and
A light modulation element that modulates the light emitted from the light source device, and
A projection optical system that projects light from the light modulation element is provided.
The light source device is
With a solid light source,
A collimator lens that parallelizes the traveling direction of the light emitted from the solid-state light source and emits the light.
A projection-type display device connected to the side surface of the solid-state light source and having a plurality of holding members for holding the collimator lens.

This application claims priority on the basis of Japanese Patent Application No. 2020-08834 filed on May 20, 2020 by the Japan Patent Office, and this application is made by reference to all the contents of this application. Invite to.

Those skilled in the art may conceive various modifications, combinations, sub-combinations, and changes, depending on design requirements and other factors, which are included in the claims and their equivalents. It is understood that it is a person skilled in the art.

Claims

With a solid light source,
A collimator lens that parallelizes the traveling direction of the light emitted from the solid-state light source and emits the light.
A light source device that is connected to the side surface of the solid light source and includes a plurality of holding members that hold the collimator lens.
The light source device according to claim 1, wherein the holding member has an opening having the same shape as at least a part of the outer shape of the collimator lens.
The light source device according to claim 1, further comprising a first support substrate for fixing the phase of light emitted from the solid-state light source.
The light source according to claim 3, wherein the holding member has a notch capable of confirming the phase of the light emitted from the solid light source when the solid light source is fixed to the first support substrate. Device.
Further with a second support substrate having one and another facing surfaces,
The light source device according to claim 3, wherein the solid light source and the first support substrate are arranged on the one surface of the second support substrate.
The light source device according to claim 1, further comprising a mirror arranged in the optical axis direction of the light emitted from the solid light source and controlling the optical axis of the light.
The solid light source has a light source portion, a support portion that supports the light source portion, and a housing that covers the light source portion.
The light source device according to claim 1, wherein the holding member is adhesively fixed to the side surface of the housing.
Further, a first support substrate for fixing the phase of the light emitted from the solid-state light source is provided.
The light source device according to claim 7, wherein the first support substrate holds a side surface of the support portion of the solid light source.
8. The first support substrate has an opening corresponding to the support portion of the solid light source, and the side surface of the support portion is held by arranging the support portion in the opening. The light source device described in.
The light source device according to claim 9, wherein the support portion and the opening portion each have a groove portion and a convex portion that are fitted to each other.
Further with a second support substrate having one and another facing surfaces,
The first support substrate is arranged on the one surface of the second support substrate, and the first support substrate is arranged.
The light source device according to claim 9, wherein the solid light source is in contact with the one surface of the second support substrate through the opening of the first support substrate.
The light source device according to claim 1, wherein the light emitting surfaces of the plurality of solid light sources have the same height as each other.
The light source device according to claim 5, wherein the surface of the solid light source opposite to the light emitting surface is fixed to the one surface of the second support substrate via a heat dissipation assisting agent.
The light source device according to claim 5, wherein a heat radiating member is further provided on the other surface of the second support substrate.
Light source device and
A light modulation element that modulates the light emitted from the light source device, and
A projection optical system that projects light from the light modulation element is provided.
The light source device is
With a solid light source,
A collimator lens that parallelizes the traveling direction of the light emitted from the solid-state light source and emits the light.
A projection-type display device connected to the side surface of the solid-state light source and having a plurality of holding members for holding the collimator lens.