Transparent ceramic light source for film and television lamp

Abstract

The utility model provides a transparent ceramic light source for a film and television lamp in the technical field of film and television lamps, which comprises a copper substrate, two positive electrode contacts and two negative electrode contacts are arranged side by side, two positive electrode leads and two negative electrode leads are arranged, and four corners of the copper substrate are respectively provided with a locking hole; one end of each positive wire is connected with a positive contact; one end of each negative wire is connected with a negative contact; the plurality of blue light chips are arranged in the middle of the top surface of the copper substrate and are respectively connected with the other ends of the positive wire and the negative wire; the plurality of heat conduction columns are vertically arranged on the top surface of the copper substrate and are higher than the blue light chip; and the fluorescent ceramic chip is connected with the top ends of the heat conduction columns and is positioned right above the blue light chips. The LED light source has the advantage that the heat dissipation performance of the light source is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film and television lamps, in particular to a transparent ceramic light source used for film and television lamps. Background Art

[0002] In order to give the audience and the camera a better sense of color and create a corresponding atmosphere during stage performances and film shooting, it is necessary to deploy film and television lights for lighting or to achieve a certain lighting effect. However, the heat dissipation performance of the light source of traditional film and television lights is poor. After working for a long time, it will produce serious light decay, affecting the color rendering coefficient and service life, and can no longer meet the current usage needs.

[0003] Therefore, how to provide a transparent ceramic light source for film and television lamps to improve the heat dissipation performance of the light source has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a transparent ceramic light source for film and television lamps, so as to improve the heat dissipation performance of the light source.

[0005] The utility model is implemented as follows: a transparent ceramic light source for film and television lamps, comprising:

[0006] A copper substrate, with two positive contacts and two negative contacts arranged side by side, two positive wires and two negative wires, and a locking hole at each corner; one end of each positive wire is connected to a positive contact; one end of each negative wire is connected to a negative contact;

[0007] A plurality of blue light chips are arranged in the middle of the top surface of the copper substrate and are respectively connected to the other end of the positive electrode wire and the negative electrode wire;

[0008] A plurality of heat-conducting columns are vertically arranged on the top surface of the copper substrate and are higher than the blue light chip;

[0009] A fluorescent ceramic sheet is connected to the top of each of the heat-conducting pillars and is located directly above each of the blue light chips.

[0010] Furthermore, the thickness of the copper substrate is 4 mm.

[0011] Furthermore, the irradiation direction of the blue light chip is toward the fluorescent ceramic sheet.

[0012] Furthermore, the thermally conductive column is a sapphire thermally conductive column.

[0013] The advantages of the utility model are:

[0014] 1. By setting a copper substrate, a thermal conductive column and a fluorescent ceramic sheet, the thermal conductive column is vertically arranged between the copper substrate and the fluorescent ceramic sheet, and the blue light chip is arranged on the copper substrate, and the irradiation direction is toward the fluorescent ceramic sheet. The heat generated by the blue light chip during operation is transferred to the copper substrate for heat dissipation, and the copper substrate simultaneously transfers the heat to the fluorescent ceramic sheet through the thermal conductive column for heat dissipation, that is, two-way heat dissipation is performed through the copper substrate and the fluorescent ceramic sheet, and the copper substrate and the sapphire thermal conductive column have better thermal conductivity, which ultimately greatly improves the heat dissipation performance of the light source.

[0015] 2. By setting two positive contacts, two negative contacts, two positive wires and two negative wires, that is, adopting a double-circuit design, the stability and reliability of the light source are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0017] Figure 1 It is one of the top views of a transparent ceramic light source for a film and television lamp of the utility model.

[0018] Figure 2 This is the second top view of a transparent ceramic light source for a film and television lamp of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the copper substrate of the utility model.

[0020] Marking Description:

[0021] 100-a transparent ceramic light source for a film and television lamp, 1-copper substrate, 2-blue light chip, 3-heat conducting column, 4-fluorescent ceramic sheet, 11-positive contact, 12-negative contact, 13-positive wire, 14-negative wire, 15-locking hole. DETAILED DESCRIPTION

[0022] The embodiment of the utility model provides a transparent ceramic light source 100 for a film and television lamp, thereby solving the technical problem that the light source of the film and television lamp in the prior art has poor heat dissipation performance, serious light decay will occur after long-term operation, and the color rendering index and service life will be affected, thereby achieving the technical effect of greatly improving the heat dissipation performance of the light source.

[0023] The technical solution in the embodiment of the utility model is to solve the above-mentioned problem, and the overall idea is as follows: the copper substrate 1 and the fluorescent ceramic sheet 4 are connected by the thermal conductive column 3, and the heat generated by the blue light chip 2 during operation is bidirectionally dissipated through the copper substrate 1 and the fluorescent ceramic sheet 4, and the copper substrate 1 and the sapphire thermal conductive column 3 both have better thermal conductivity to improve the heat dissipation performance of the light source 100.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Please refer to Figures 1 to 3 As shown, a preferred embodiment of a transparent ceramic light source 100 for a film and television lamp of the utility model comprises:

[0026] A copper substrate 1 is provided with two positive contacts 11 and two negative contacts 12 side by side, two positive wires 13 and two negative wires 14, and a locking hole 15 is provided at each corner; one end of each positive wire 13 is connected to a positive contact 11; one end of each negative wire 14 is connected to a negative contact 12; the copper substrate 1 is used to carry a ceramic light source 100; the positive contact 11, the negative contact 12, the positive wire 13 and the negative wire 14 are used to energize the blue light chip 2;

[0027] A plurality of blue light chips 2 are arranged in the middle of the top surface of the copper substrate 1, and are respectively connected to the other end of the positive wire 13 and the negative wire 14; the blue light chip 2 is used to emit blue light with a wavelength of 400-500nm to the fluorescent ceramic sheet 4, so as to stimulate the fluorescent ceramic sheet 4 to emit light with the required color reproduction effect, and achieve an ultra-high color rendering index: Ra≥95, R9≥90, R12≥80, TLCI≥95. In the specific implementation, it is sufficient to select a blue light chip that can achieve this function from the existing technology, and it is not limited to any model, such as Sanan chip S-35EBMUD-A-CH;

[0028] A plurality of heat-conducting columns 3 are vertically arranged on the top surface of the copper substrate 1 and are higher than the blue light chip 2, and are used to conduct the heat of the copper substrate 1 to the fluorescent ceramic sheet 4;

[0029] A fluorescent ceramic sheet 4 is connected to the top of each of the heat-conducting pillars 3 and is located directly above each of the blue light chips 2 . It is used for heat dissipation of the ceramic light source 100 and emits light of a specified light effect.

[0030] The power of the ceramic light source 100 is 1000W, the voltage is 348V, the current is 2880mA, Ra≥95, R9≥90, R12≥80, and the light efficiency is greater than 130lm / W TLCI≥95.

[0031] The copper substrate 1 has a thickness of 4 mm, which can effectively improve the heat dissipation performance.

[0032] The irradiation direction of the blue light chip 2 is toward the fluorescent ceramic plate 4, so as to excite the fluorescent ceramic plate 4 to emit light outward.

[0033] The thermally conductive column 3 is a sapphire thermally conductive column, which has a good thermal conductivity.

[0034] Working principle of this utility model:

[0035] After the blue light chip 2 is powered on through the positive contact 11 and the negative contact 12, it emits blue light with a wavelength of 400-500nm to the fluorescent ceramic sheet 4 to stimulate the fluorescent ceramic sheet 4 to emit light with a specified light effect to the outside; the heat generated by the blue light chip 2 during operation is conducted to the copper substrate 1 for dissipation, and the copper substrate 1 simultaneously conducts the heat to the fluorescent ceramic sheet 4 through the thermal conductive column 3 for further heat dissipation.

[0036] In summary, the advantages of the present invention are:

[0037] 1. By setting a copper substrate, a thermal conductive column and a fluorescent ceramic sheet, the thermal conductive column is vertically arranged between the copper substrate and the fluorescent ceramic sheet, and the blue light chip is arranged on the copper substrate, and the irradiation direction is toward the fluorescent ceramic sheet. The heat generated by the blue light chip during operation is transferred to the copper substrate for heat dissipation, and the copper substrate simultaneously transfers the heat to the fluorescent ceramic sheet through the thermal conductive column for heat dissipation, that is, two-way heat dissipation is performed through the copper substrate and the fluorescent ceramic sheet, and the copper substrate and the sapphire thermal conductive column have better thermal conductivity, which ultimately greatly improves the heat dissipation performance of the light source.

[0038] 2. By setting two positive contacts, two negative contacts, two positive wires and two negative wires, that is, adopting a double-circuit design, the stability and reliability of the light source are effectively improved.

[0039] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A transparent ceramic light source for film and television lighting, characterized in that: include: A copper substrate, with two positive contacts and two negative contacts arranged side by side, two positive wires and two negative wires, and a locking hole at each corner; one end of each positive wire is connected to a positive contact; one end of each negative wire is connected to a negative contact; A plurality of blue light chips are arranged in the middle of the top surface of the copper substrate and are respectively connected to the other end of the positive electrode wire and the negative electrode wire; A plurality of heat-conducting columns are vertically arranged on the top surface of the copper substrate and are higher than the blue light chip; A fluorescent ceramic sheet is connected to the top of each of the heat-conducting pillars and is located directly above each of the blue light chips.

2. A transparent ceramic light source for a film and television lamp as claimed in claim 1, characterized in that: The thickness of the copper substrate is 4 mm.

3. A transparent ceramic light source for a film and television lamp as claimed in claim 1, characterized in that: The irradiation direction of the blue light chip is toward the fluorescent ceramic sheet.

4. A transparent ceramic light source for a film and television lamp as claimed in claim 1, characterized in that: The heat-conducting column is a sapphire heat-conducting column.

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