JP3002456U - Light source unit for integrated discharge lamp with spherical mirror - Google Patents

Abstract

(57) [Summary] [Objective] The present invention provides a simple, low-cost, and high-precision light source unit for an integrated discharge lamp with a spherical mirror, for which a patent is applied at the same time, with easy lamp replacement [ Configuration: A condenser lens 10 is mounted in the center of the substrate 9 with the optical axis as a center, an integrator receiving cylinder 13 is mounted on the opposite side, and spherical mirror support portions 5a, 5b,
Two 5c are arranged as shown in FIG. 2, the spherical mirror receiving portion of the supporting portion is stepped, and the pressing plate 6 and the screw press the spherical mirror,
The substrate 9 is screwed at right angles to the support base 8, and the socket receiving side outlet is arranged on the support base 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a light source unit that efficiently collects the light of a high-intensity discharge lamp and does not require adjustment of the position or angle when replacing the lamp, and its application fields are steppers, liquid crystal display projectors, and slides. Projectors, general projectors, LCD projection televisions, etc.

[0002]

[Prior art]

 In the past, there was no integrated discharge lamp with a spherical mirror, so there was no light source unit as in the present invention.

[0003]

[Problems to be solved by the device]

 It is an object of the present invention to provide a light source unit for the integrated discharge lamp with a spherical mirror, which has been newly invented this time, which is simple, low-cost, and easy to replace the lamp.

[0004]

[Means for Solving the Problems]

 The condenser lens mount screw is located on the lamp side in the center of the board, the condenser lens mount screw is located on the side opposite the lamp, and the condenser lens mount tube is mounted on the opposite side of the lamp. Three support parts are arranged around the axis to support the spherical mirror. One of the three support parts is at the heaven position, and the other two are left and right from the ground position connecting the heavens and lands. It is placed at a position of 40 degrees, these three support parts are screwed to the substrate, and the spherical mirror receiving parts of the three support parts are stepped so that the flange of the edge of the spherical mirror is positioned, and the pressing plate and A light source unit in which a spherical mirror is fastened with a screw or butterfly screw, this board is screwed at a right angle to the support, and an outlet for receiving the socket of the discharge lamp is screwed on the support.

[0005]

[Action]

 Since the number of parts is small, it is simple, low-cost, and it is possible to reliably maintain accuracy, and it is extremely easy to replace the lamp. At the mass production stage, casting can make it even simpler.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view of a light source unit for an integrated discharge lamp with a spherical mirror according to the present invention. FIG. 2 is a view of the light source unit as seen from behind. In the figure, 1 is a bulb part of a discharge lamp, 2 is a spherical mirror, and 1 and 2 are fixed and integrated to form an integrated discharge lamp with a spherical mirror. 3 is a fixed portion of the discharge lamp and the spherical mirror, 4 is a socket, 5a, 5b and 5c are supporting portions of the integrated discharge lamp with a spherical mirror, 6 is a holding plate, 7 is a socket for receiving the socket, and 8 is a support base of the light source unit. , 9 are substrates of the light source unit. Reference numeral 10 is a condenser lens, 11 is an integrator, and 12 is a light projecting lens.

[0007]

[Effect of device]

 The present invention has realized a light source unit for an integrated discharge lamp with a spherical mirror, which is simple, low cost, highly accurate, and easy to replace the lamp.

[Brief description of drawings]

FIG. 1 is a sectional view including an optical axis showing an embodiment of a light source unit for an integrated discharge lamp with a spherical mirror according to the present invention.

FIG. 2 is a view of the embodiment of the present invention seen from behind.

[Explanation of symbols]

1 tube of discharge lamp 2 spherical mirror 3 fixed part of discharge lamp and spherical mirror 4 socket 5 support part of integrated discharge lamp with spherical mirror (5a, 5b, 5)
3 pieces of c) 6 Presser plate 7 Socket receiving socket 8 Light source unit support 9 Light source unit substrate 10 Condenser lens 11 Integrator 12 Projector lens 13 Integrator receiving tube δ Shift amount between spherical mirror center and tube center

Claims (1)

[Scope of utility model registration request] 1. A light source unit for an integrated discharge lamp with a spherical mirror, the patent application of which is separately filed at the same time, wherein the edge of the spherical mirror of the discharge lamp is received by three supporting parts, and is pressed by a holding plate, or a screw or a butterfly. Tighten with screws, one of the three support parts is located at the top position, and the other two are located at 40 degrees to the left and right from the position of the vertical line connecting the top and bottom. These three support parts Is screwed to the board, the mount screw of the condenser lens on the lamp side is centered on the optical axis in the center of the board, and the mount screw of the receiving tube of the integrator is cut on the opposite side of the lamp, and the condenser lens and the receiver of the integrator are respectively attached. A light source unit for an integrated discharge lamp with a spherical mirror, in which a cylinder is mounted, a substrate is screwed at a right angle to a support, and an outlet of a discharge lamp socket is screwed to the support.