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Aberration-eliminating aspheric three-lens operation LED head lamp

An LED headlight, aberration-ablation technology, applied in torch/pocket lamp, medical lighting, lighting and heating equipment, etc. Lightweight, sophisticated structure of headlights

Inactive Publication Date: 2020-07-10
FUDAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an aberration-eliminating aspheric three-lens surgical LED headlight to solve the problems of uneven image quality and blurred edges of the light field existing in the prior art.

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Embodiment Construction

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings.

[0021] like figure 1 As shown, an aberration aspheric three-lens surgical LED headlight designed by the present invention includes a high-power LED light source A and an aberration optical lens group B. The high-power LED light source in this embodiment is the Seoul Semiconductor SZ8-Y19-WN-C9 model, the maximum power can reach 7.8W, the color temperature is natural white with a color temperature of 3700-4700K, and the color rendering index is 90%. The imaging lens group B includes a first lens B1, a second lens B2 and a third lens B3. Wherein, B1 is a spherical plano-convex lens made of BK7 material, B2 is an aspherical plano-convex lens made of PMMA material, and B3 is a spherical plano-convex lens made of PMMA material.

[0022] In this embodiment, a...

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Abstract

The invention belongs to the technical field of optical devices, and particularly relates to an aberration-eliminating aspheric three-lens operation LED head lamp. The aberration-eliminating asphericthree-lens operation LED head lamp comprises an LED light source A and an aberration-eliminating imaging optical lens group B. The imaging optical lens group B comprises a first lens B1, a second lensB2 and a third lens B3. The lens B1 is a spherical lens and is made of a material BK7; the lens B2 is an aspheric lens and is made of a material PMMA; the lens B3 is a spherical lens and is made of amaterial PMMA. Light emitted by the LED lamp sheet sequentially passes through the spherical lens B1, the aspheric lens B2 and the spherical lens B3 from front to back. The optical lens system of thehead lamp not only guarantees the basic uniformity of light spots, but also enables the image edges of the light spots to be clear through an efficient aberration correction method, and the interference of halo on a field of view is reduced.

Description

technical field [0001] The invention belongs to the technical field of optical devices, and in particular relates to an aberration aspheric three-lens surgical LED headlight. Background technique [0002] In precision surgery, although there is a shadow-free lighting environment provided by shadowless lamps, this large-scale lighting method is often insufficient in brightness in the local surgical area, requiring additional lighting measures. On the other hand, the hands of the surgeon are not convenient to operate the hand-held lighting tools, and if relying on the assistance of nurses, there are also tacit problems such as synchronous communication. Therefore, the head-mounted lighting device came into being, which saves manpower and guarantees the work efficiency of doctors. [0003] After the appearance of the surgical headlamp, it has undergone a lot of practice and improvement. Now, in the electrical control, by adding modular components such as sensors, the intellige...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21L2/00F21V5/04F21V5/00F21W131/205F21Y115/10
CPCF21L2/00F21V5/006F21V5/041F21V5/048F21W2131/205F21Y2115/10
Inventor 季敏标王文硕敖建鹏管钦毅贺若愚
Owner FUDAN UNIV
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