Spherical light source equipment with adjustable spectrum

Abstract

The utility model relates to a sphere light source equipment with adjustable spectrum, including box body, and setting up control panel and integrating sphere subassembly in the box body, integrating sphere subassembly includes front hemisphere, rear hemisphere, front visor and lamp panel, front hemisphere and rear hemisphere are connected and form spherical inner cavity, the center of front hemisphere is equipped with the light exit passageway, and the light exit passageway is equipped with the light exit passageway. The front hemisphere is provided with a front shading plate for preventing a light source from directly irradiating at the position of the light outlet channel, the two sides of the rear hemisphere are provided with light source channels with openings facing the direction of the light outlet channel and inclining upwards, and the light source channels are connected with lamp panels. The brightness and the color temperature of the light emitting channel are adjusted by adjusting the average current of the LED lamp beads, so that accurate spectrum adjustment, color temperature adjustment and color rendering index simulation are realized, and the requirements of modern optical research and development are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of light source equipment, especially relates to a spectrum adjustable spherical light source equipment. BACKGROUND

[0002] With the continuous progress of science and technology, the requirement of light source equipment also improves, especially the spectrum characteristic, stability and adjustment ability of light source have strict requirements, for example, the wide spectrum light source from ultraviolet to infrared is needed to capture the multispectral information of sample, the different wavelength light may have different influences on the optical characteristics of material, etc., and the traditional light source equipment, such as incandescent lamp, halogen lamp, fluorescent lamp, etc., although can provide fixed illumination conditions, but there are obvious limitations in spectrum adjustment, and the accurate output requirement of specific wavelength cannot be met.

[0003] The existing LED spherical light source equipment usually sets a single group of lamp panels in the integrating sphere, a plurality of LED chips are integrated on the lamp panel, different wavelengths of light are mixed in proportion through spectrum synthesis technology, and continuous spectrum output is realized, but the light source equipment with single group of lamp panel structure still has limitations in accurate control and spectrum continuity, and problems such as non-uniform color temperature and spectrum jumping may occur in the adjustment process, and it is difficult to adapt to the requirements of modern optical research and development. UTILITY MODEL CONTENT

[0004] In order to overcome the defects in the background art, the utility model adopts the technical scheme: a spectrum adjustable spherical light source equipment, which comprises a box body, a control panel and an integrating sphere assembly arranged in the box body, the integrating sphere assembly comprises a front hemisphere, a rear hemisphere, a front light shield and a lamp panel, the front hemisphere is connected with the rear hemisphere and forms a spherical inner cavity, a light outlet channel is arranged at the center of the front hemisphere, the front hemisphere is provided with a front light shield for avoiding direct light of the light source at the light outlet channel, the rear hemisphere is provided with light source channels inclined upward on both sides and opening towards the direction of the light outlet channel, and the lamp panel is detachably connected to the light source channels.

[0005] By adopting the above technical scheme, the utility model adopts a special spherical shell, the internal structure of which can realize uniform scattering and reflection of light, wherein the lamp panel integrates a plurality of different types of light-emitting LED channels, including LED chips of different wavelength ranges such as ultraviolet, visible and infrared, to realize the basic mixing effect of multispectrum, the rear hemisphere is symmetrically provided with two groups of lamp panels of cold and warm colors, PWM dimming technology is adopted to realize the adjustment of the brightness and color temperature of the light outlet channel by adjusting the average current of the LED lamp beads, so as to realize accurate spectrum adjustment, color temperature adjustment, color rendering index simulation lamp, and meet the requirements of modern optical research and development.

[0006] The utility model further sets up, the appearance of front light shield and light outlet passage are all round, and front light shield and light outlet passage coaxial distribution, light shield diameter is bigger than the diameter of light outlet passage.

[0007] Further, the front light shield is provided with a bending part at both ends, and the front light shield is installed on the front hemisphere through the bending part.

[0008] Further, the rear hemisphere is provided with a side light shield on the side of the light source channel facing the light outlet channel.

[0009] The front light shield and the side light shield have a shielding effect, which effectively avoids the direct emission of the light panel light source from the light outlet channel, so that the light is reflected and scattered multiple times in the integrating sphere, ensuring the uniformity and consistency of the emitted light, and meeting the high-precision optical experiment requirements.

[0010] The utility model further sets up, the integrating sphere assembly still includes flange and adapter plate, flange is installed in the box through adapter plate, the front hemisphere and rear hemisphere are equipped with the installation department of with flange adaptation, flange is equipped with the first threaded hole for connecting installation department, and the circular groove for positioning installation department.

[0011] The flange is installed on the back of the installation part, so that the flange is not arranged between the front hemisphere and the rear hemisphere, so that the inner cavity composed of the front hemisphere and the rear hemisphere is always a stable spherical structure, avoiding the influence of the size error or installation error of the flange on the light source adjustment.

[0012] The utility model further sets up, the rear hemisphere is welded with flange weldment in the light source channel, and the flange weldment is provided with a second threaded hole for installing the light panel.

[0013] The light panel can be independently detached from the integrating sphere, so that the light panel is simple and convenient to maintain.

[0014] The utility model further sets up, the back of the light panel is equipped with the heat dissipation plate, and the heat dissipation plate is equipped with array distribution heat dissipation fin.

[0015] The heat dissipation fin significantly increases the heat dissipation area of the light panel, avoids the light source attenuation or damage caused by overheating, and improves the service life of the light source equipment.

[0016] The utility model embodiment is further described below with reference to the drawings. DRAWINGS

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure 2 It is the sectional view of the utility model;

[0019] Figure 3 It is the perspective view of the front light shield plate of the utility model;

[0020] Figure 4 It is the perspective view of the side light shield plate of the utility model;

[0021] Figure 5 It is the perspective view of the utility model's integral sphere assembly; Figure 2 It is the partial enlarged view of the middle A view;

[0022] Figure 6 It is the perspective view of the integral sphere assembly of the utility model;

[0023] Wherein: 1 - box, 2 - control panel, 3 - integral sphere assembly, 4 - front hemisphere, 5 - rear hemisphere, 6 - front light shield plate, 7 - lamp panel, 8 - inner cavity, 9 - light outlet passage, 11 - light source passage, 12 - bending part, 13 - side light shield plate, 14 - flange plate, 15 - adapter plate, 16 - mounting portion, 17 - first threaded hole, 18 - flange welding, 19 - second threaded hole, 20 - heat sink plate, 21 - heat dissipation fin; DETAILED DESCRIPTION

[0024] As Figure 1 , 2 shown, the embodiment provides a kind of spectrum adjustable spherical light source equipment, including box 1, and control panel 2 and integral sphere assembly 3 in box 1, integral sphere assembly 3 includes front hemisphere 4, rear hemisphere 5, front light shield plate 6 and lamp panel 7, front hemisphere 4 is connected with rear hemisphere 5 and forms spherical inner cavity 8, the center of front hemisphere 4 is equipped with light outlet passage 9, front hemisphere 4 is equipped with front light shield plate 6 to avoid light source direct at light outlet passage 9, rear hemisphere 5 is equipped with light source passage 11 inclined upward with the direction of opening towards light outlet passage 9 on both sides, light source passage 11 can be detachably connected with lamp panel 7.

[0025] As shown in Figure 3 , 4 shown, in the embodiment, the shape of front light shield plate 6 and light outlet passage 9 are all round, and front light shield plate 6 and light outlet passage 9 are coaxially distributed, and the both ends of front light shield plate 6 are equipped with bending part 12, and front light shield plate 6 is installed on front hemisphere 4 by bending part 12, and rear hemisphere 5 is equipped with side light shield plate 13 on the side of light source passage 11 towards light outlet passage 9.

[0026] As shown in Figure 5As shown, in the embodiment, the integrating sphere assembly 3 further comprises a flange plate 14 and an adapter plate 15, the flange plate 14 is threadedly connected to the box body 1 through the adapter plate 15, the front hemisphere 4 and the rear hemisphere 5 are provided with mounting portions 16 matched with the flange plate 14, the flange plate 14 is provided with first threaded holes 17 for connecting the mounting portions 16, and the flange plate 14 is provided with circular grooves for positioning the mounting portions 16, and the front hemisphere 4 and the rear hemisphere 5 are threadedly connected through the mounting portions 16 by means of screws.

[0027] In combination Figure 5 、 6 As shown, in the embodiment, the rear hemisphere 5 is provided with a flange weldment 18 welded in the light source channel 11, the flange weldment 18 is provided with second threaded holes 19 for mounting the lamp plate 7, the back surface of the lamp plate 7 is provided with a heat dissipation plate 20, the heat dissipation plate 20 is provided with heat dissipation fins 21 arranged in an array, the lamp plate 7 and the heat dissipation plate 20 are provided with through holes corresponding to the second threaded holes 19, and the lamp plate 7 and the heat dissipation plate 20 are threadedly connected to the flange weldment 18 through the through holes by means of screws.

[0028] In the utility model, the lamp plate 7 integrates a plurality of different types of light-emitting LED channels, including LED chips of different wavelength ranges such as ultraviolet, visible and infrared, realizes the basic mixed effect of multiple spectra, the rear hemisphere 5 is symmetrically provided with two groups of lamp plates 7 of cold and warm colors, the control panel 2 is a multi-spectrum control panel, adopts PWM dimming technology, realizes the adjustment of the brightness and color temperature of the light-emitting channel 9 by adjusting the average current of the LED lamp beads, the integrating sphere inner cavity 8 is spherical, the internal structure can realize uniform scattering and reflection of light, through the shielding effect of the front light shield 6 and the side light shield 13, the light source of the lamp plate 7 is effectively avoided from directly emitting from the light-emitting channel 9, thereby realizing accurate spectrum adjustment, color temperature adjustment, color rendering index simulation lamp, and meeting the requirements of modern optical research and development 35.

[0029] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A spectrally tunable sphere light source apparatus comprising a housing (1), and a control board (2) and an integrating sphere assembly (3) arranged in the housing (1), characterized in that, The integral sphere assembly (3) comprises a front hemisphere (4), a rear hemisphere (5), a front light shield (6) and a lamp plate (7), the front hemisphere (4) is connected with the rear hemisphere (5) and forms a spherical inner cavity (8), the center of the front hemisphere (4) is provided with a light outlet channel (9), the front hemisphere (4) is provided with the front light shield (6) at the light outlet channel (9) to avoid direct light of the light source, the two sides of the rear hemisphere (5) are provided with light source channels (11) which are inclined upward towards the direction of the light outlet channel (9), and the light source channels (11) are detachably connected with the lamp plate (7).

2. A spectrally tunable spherical light source device according to claim 1, characterized in that: The front light shield (6) and the light outlet channel (9) are both circular in shape, and the front light shield (6) and the light outlet channel (9) are coaxially distributed, and the diameter of the front light shield (6) is greater than the diameter of the light outlet channel (9).

3. A spectrally tunable spherical light source device according to claim 2, characterized in that: The front light shield (6) is provided with bending parts (12) at both ends, and the front light shield (6) is installed on the front hemisphere (4) through the bending parts (12).

4. A spectrally tunable spherical light source device according to claim 3, characterized in that: The rear hemisphere (5) is provided with a side light shield (13) on the side of the light source channel (11) towards the light outlet channel (9).

5. A spectrally tunable spherical light source device according to claim 1, characterized in that: The integral sphere assembly (3) further comprises a flange plate (14) and an adapter plate (15), the flange plate (14) is installed on the box (1) through the adapter plate (15), the front hemisphere (4) and the rear hemisphere (5) are provided with mounting parts (16) matched with the flange plate (14), the flange plate (14) is provided with first threaded holes (17) for connecting the mounting parts (16) and circular grooves for positioning the mounting parts (16).

6. A spectrally tunable spherical light source device according to claim 1, characterized in that: The rear hemisphere (5) is welded with a flange welding part (18) at the light source channel (11), and the flange welding part (18) is provided with second threaded holes (19) for mounting the lamp plate (7).

7. A spectrally tunable spherical light source device according to claim 1, characterized in that: The back of the lamp plate (7) is provided with a heat dissipation plate (20), and the heat dissipation plate (20) is provided with heat dissipation fins (21) arranged in an array.

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