System and method for controlling light source of slit lamp microscope

A slit lamp microscope and light source control technology, which is applied in ophthalmoscope and other directions, can solve problems such as inability to take into account the preview and imaging brightness, the captured image is not clear enough, and the eyes feel uncomfortable, so as to achieve clear images, reduce acquisition difficulty, and optimize quality. Effect

Active Publication Date: 2012-10-31
SHANGHAI MEDIWORKS PRECISION INSTR CO LTD
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Problems solved by technology

Manually adjusting the LED light source of the slit lamp cannot take into account the brightness required for preview and imaging. Too bright will make the subject's eyes feel uncomfortable, and insufficient brightness will make the captured image not clear enough. It takes time to find a more appropriate brightness during the adjustment process Longer, and requires the equipment operator to have rich experience

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  • System and method for controlling light source of slit lamp microscope

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0025] Such as figure 1 As shown: 1 is the power supply, 2 is the power adapter, 3 is the power conversion, 4 is the CPU, 5 is the constant current source drive, 6 is the brightness adjustment knob, 7 is the joystick button, 8 is the LED light source, 9 is the camera shutter, 10 is a camera, and 11 is a PC.

[0026] A light source control system for a slit lamp microscope in this embodiment includes a power supply 1, an LED light source 8, a CPU 4, a brightness adjustment knob 6, a camera 10, a PC 11, an LED light source 8, a PC 11, a camera 10, and a brightness adjustment knob S1 Both are connected with CPU4, CPU4 can control the brightness of LED light source 8 by outputting PWM signal, adjust brightness adjustment knob 6 to adjust the brightness of LED light source 8, camera 10 is connected with PC 11, PC 11 and CPU4 are connected with control Lever button 7.

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Abstract

The invention provides a system and a method for controlling the light source of a slit lamp microscope. In image previewing, the light source is adjusted to the brightness comfortable for eyes to carry out eye controlled focus through operating a brightness adjusting knob; and during image shooting, the brightness of the light source is maximal through the control of a CPU (Central Processing Unit). In image shooting, the duration of the maximal brightness of the light source is the same as the camera exposure time. After the images shooting is finished, the CPU controls the brightness of the light source to be restored to be brightness adjusted in image previewing. The brightness required in image previewing and imaging of the light source of the slit lamp can be considered at the same time, so that the definition of the shot images and the checking efficiency are improved effectively.

Description

[0001] technical field [0002] The invention relates to an ophthalmic optical inspection equipment, in particular to a slit lamp microscope using LED as a light source. [0003] Background technique [0004] The slit lamp microscope is a commonly used ophthalmic optical inspection equipment. The slit light source of the early slit lamp microscope mostly used halogen tungsten lamps and incandescent lamps, but the color temperature of the tungsten halogen lamps is unstable, especially when the color temperature changes greatly when dimming, which affects users. Diagnosis; while incandescent lamps have high power and high heat generation, which can easily cause the microscope body to heat up, have a short lifespan, and need to be replaced frequently. [0005] In order to solve the above problems, LED lamps are used as the slit light source in the prior art. As proposed in the technical solution disclosed in “A Handheld Slit Lamp Microscope” (Patent No. 200910181597.3), the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/135
Inventor 王绍娟陈文光孔昭松
Owner SHANGHAI MEDIWORKS PRECISION INSTR CO LTD
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