JPH0621012U - Solar concentrator - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a solar light concentrator that can determine the condensed and reflected state at a glance and can know the degree and direction of polarized light by reading the deviation from the normal converging focus. It is in. An auxiliary light receiving member having an auxiliary light collecting member 21 having an auxiliary light collecting and reflecting surface that collects sunlight on the solar light collecting device 10, and an auxiliary light receiver that receives light reflected by the auxiliary light reflecting surface. A sighting device 20 is provided which comprises

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sunlight concentrating device for introducing sunlight into a room.

[0002]

[Prior art]

 Conventionally, a sunlight concentrating device for introducing sunlight into a room that is not exposed to sunlight has a condensing member having a condensing reflecting surface for concentrating the sunlight, and the condensing reflecting surface reflects the light. There is known a solar light concentrating device that includes a light receiving member having a light receiving surface that receives reflected light and that tracks and collects sunlight.

However, after the solar light concentrating device is installed, the reflected light reflected by the light converging / reflecting surface is focused on the light receiving portion due to weather conditions, leaving errors, mechanical malfunctions, and the like. There is a problem in that the initial collection and reflection state of the concentrated light causes an abnormality and the light collection efficiency is significantly reduced.

In addition, in the case where the condensing reflection state is judged and an abnormal condensing reflection function is to be returned to the normal state, the sunlight condensing device is partially disassembled and reset to the initial condensing state. It has to be done, it takes a lot of time and effort, and it is difficult for non-specialists to make adjustments.

Further, as another method of determining the light collecting state, a method of visually judging a decrease in light amount inside a room where the collected sunlight is irradiated has been proposed. It is very difficult to determine the above, and even if it could be judged, the above-mentioned solar light concentrator should be partially disassembled and the converging / reflecting state should be reset whenever the concentrating function becomes abnormal. It costs.

[0006]

[Problems to be solved by the device]

 The purpose of the present invention is to allow the user to determine at a glance the state of light collection and reflection without relying on an expert, and to read the deviation from the normal focus of light collection due to weather conditions, leaving errors, malfunctions of the machine, etc. The purpose of the present invention is to provide a sunlight concentrating device equipped with a sighting device capable of knowing the degree and direction of polarization.

[0007]

[Means for Solving the Problems]

 According to the present invention, a light collecting member having a light collecting and reflecting surface for collecting sunlight, and a light receiving member having a light receiving surface for receiving the reflected light reflected by the light collecting and reflecting surface are provided. In a sunlight concentrating device for tracking and concentrating sunlight, an auxiliary condensing condenser for concentrating the sunlight along an optical axis parallel to an optical axis connecting the condensing reflection surface and the light receiving surface. A solar light concentrating device provided with an aiming device including an auxiliary light collecting member having a reflecting surface and an auxiliary light receiving member having an auxiliary light receiving surface for receiving the reflected light reflected by the auxiliary reflecting surface. Will be provided.

[0008]

[Action]

 In the sunlight concentrating device of the present invention, an auxiliary light collecting member having an auxiliary light collecting and reflecting surface for collecting sunlight and an auxiliary light receiving surface for receiving the reflected light reflected by the auxiliary reflecting surface. Since a sighting device equipped with a receiving member is provided, the user can judge the condensed and reflected state without relying on an expert, and by reading the deviation from the normal condensed focal point where the reflection and concentration should be performed, The degree and direction of polarization can be known.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

A tracking function sighting device 20 for a solar concentrator according to the present invention for determining and adjusting the tracking function of the solar concentrator 10 for introducing sunlight into a room is shown in FIGS. As shown in FIG. 2, it is composed of a sighting concave mirror 21 for collecting the sunlight 11, and a sighting plate 22 for concentrating the sunlight 11a collected by the sighting concave mirror 21.

The aiming concave mirror 21 is attached to the main body concave mirror condensing unit 13 so that the condensing optical axis 12a of the aiming concave mirror 21 and the main body concave mirror collecting unit 13 are parallel to each other. To be fixed.

The aiming plate 22 is formed in a disk shape and is fixed to the main body condensing portion 14 so as to be located on the converging optical axis 12 a of the aiming concave mirror 21. A scale 22a is provided on the sighting plate 22, and the degree and direction of the polarized light 11b can be known by reading the deviation from the normal focusing point 22b. By adjusting other members (not shown), the light can be returned to the normal collecting state, and sufficient light can be introduced into the room (not shown) from the final collecting unit 15 of the main body through the optical fiber 16. be able to.

Further, in the above-described embodiment, the tracking function sighting device capable of manually adjusting the light collecting state at the time of abnormality while visually observing the sighting plate has been described, but as another example, as shown in FIG. Using the aiming plate 32 equipped with the optical sensor 32a, the optical sensor 32a automatically captures the polarized light 11b that exceeds a predetermined focusing region 32b, and the main body concave mirror condensing unit 13 and the main body final condensing unit 15 Alternatively, it may be an automatic tracking function sighting device that automatically adjusts other members (not shown) to electrically adjust the condensed state at the time of abnormality.

[0014]

[Effect of device]

 With the solar light concentrating device of the present invention, the converging / reflecting state can be determined at a glance without relying on a specialist, and the degree and direction of polarization can be known by reading the deviation from the normal converging focus.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an example of a state of light collection and reflection of a solar light collecting device of the present invention.

FIG. 2 is a schematic front view showing an example of an aiming plate provided in the sunlight concentrating device of FIG.

FIG. 3 is a schematic front view showing another example of an aiming plate provided in the sunlight concentrating device of the present invention.

[Explanation of symbols]

 10 Solar light concentrator 11 Sunlight 12 Optical axis 13 Main body concave mirror light condensing part 14 Main body condensing part 15 Main body final condensing part 16 Optical fiber 20 Tracking function aiming device 21 Aiming concave mirror 22, 32 Aiming plate

Claims (1)

[Scope of utility model registration request] 1. A sun comprising a light collecting member having a light collecting and reflecting surface for collecting sunlight, and a light receiving member having a light receiving surface for receiving the reflected light reflected by the light collecting and reflecting surface. In the sunlight concentrator for tracking and concentrating light,
An auxiliary light collecting member having an auxiliary light collecting and reflecting surface that collects the sunlight along an optical axis that is parallel to the optical axis that connects the light collecting and reflecting surface and the light receiving surface, and is reflected by the auxiliary reflecting surface. A solar light concentrating device comprising: a sighting device including an auxiliary light receiving member having an auxiliary light receiving surface that receives reflected light.