R, "green" - ΔλG and "blue" - ΔλB cells, respectively, modulated is light beam intensity on frequency of 44-46 Hz. Beam intensity is increased to origination of scintillations on frequency of 44-46 Hz of central uncolored fringe. Then, modulation frequency is set to 22-23 Hz to define quantity of pulsating red interference fringes NR, green interference fringes NG and blue interference fringes NB, respectively, to define spectral width of colored cells Δλi from relation Δλi = λi / Ni, where: Ni=NR, NG, Nb, and λi is wave length corresponding to maximum sensitivity for "red" cone cells λR=600 nm, for "green" cone cells λG=530 nm and "blue" cone cells λB=450 nm.;EFFECT: optimised spectral sensitivity of cone and rod cells to optimise colored optical video systems.;4 dwg"/>
METHOD OF DETERMINING MONOCHROMIC SPECTRAL SENSITIVITY OF CONE CELLS AND ROD CELLS OF HUMAN RETINA IN VIVO
首页>
外国专利>
METHOD OF DETERMINING MONOCHROMIC SPECTRAL SENSITIVITY OF CONE CELLS AND ROD CELLS OF HUMAN RETINA IN VIVO
METHOD OF DETERMINING MONOCHROMIC SPECTRAL SENSITIVITY OF CONE CELLS AND ROD CELLS OF HUMAN RETINA IN VIVO
展开▼
机译：测定人视网膜视网膜细胞和杆状细胞单色光谱灵敏度的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
FIELD: physics, optics.;SUBSTANCE: invention relates to contactless measurement of photochromic spectral sensitivity of human eyes in vivo. Human eye retina macular area is sounded by broadband 390-800 nm optical radiation. To selectively define spectral width rod cell sensitivity Δλ, interference fringes with fixed spatial period not exceeding 10 minutes or arc are produced. Intensity of optical radiation is decreased to origination of black-and-white interference fringes. Beam intensity pulse modulation is set with pulse repetition rate of 12-13 Hz and on-off of 2 to determine quantity of pulsating black-and-white interference fringes N and to calculate spectral width of rod cell sensitivity spectral width from relation: Δλ=λ/N, where: λ=510 nm is wavelength corresponding to rod cell maximum sensitivity. To determine spectral width of sensitivity of "red" - ΔλR, "green" - ΔλG and "blue" - ΔλB cells, respectively, modulated is light beam intensity on frequency of 44-46 Hz. Beam intensity is increased to origination of scintillations on frequency of 44-46 Hz of central uncolored fringe. Then, modulation frequency is set to 22-23 Hz to define quantity of pulsating red interference fringes NR, green interference fringes NG and blue interference fringes NB, respectively, to define spectral width of colored cells Δλi from relation Δλi = λi / Ni, where: Ni=NR, NG, Nb, and λi is wave length corresponding to maximum sensitivity for "red" cone cells λR=600 nm, for "green" cone cells λG=530 nm and "blue" cone cells λB=450 nm.;EFFECT: optimised spectral sensitivity of cone and rod cells to optimise colored optical video systems.;4 dwg
展开▼
机译：技术领域本发明涉及人眼在体内对光致变色光谱灵敏度的非接触式测量。宽带390-800 nm的光辐射可探测人眼视网膜的黄斑区域。为了有选择地定义光谱宽度的杆单元灵敏度Δλ，会产生固定的空间周期不超过10分钟的干涉条纹或电弧。光辐射的强度降低到黑白干涉条纹的起源。设置光束强度脉冲调制，脉冲重复频率为12-13 Hz，开关频率为2，以确定脉动黑白干涉条纹N的数量，并根据以下关系式计算杆状单元灵敏度光谱宽度：Δλ= λ/ N，其中：λ= 510 nm是对应于杆状细胞最大灵敏度的波长。为了确定“红色”-Δλ R ，“绿色”-Δλ G 和“蓝色”-Δλ B 灵敏度的光谱宽度，分别以44-46 Hz的频率调制光束强度。光束强度增加到中心无色条纹以44-46 Hz的频率闪烁。然后，将调制频率设置为22-23 Hz，以定义脉动的红色干涉条纹N R ，绿色干涉条纹N G 和蓝色干涉条纹N B的数量。 分别根据关系Δλ i =λ i / N i定义有色单元的光谱宽度Δλ i ，，其中：N i = N R ，N G ，N b 和λ< Sub> i 是与“红色”锥细胞λ R = 600 nm，对于“绿色”锥细胞λ G = 530的最大灵敏度相对应的波长nm和“蓝色”视锥细胞λ B = 450 nm。效果：优化视锥细胞和棒状细胞的光谱灵敏度以优化彩色光学视频系统。4dwg
展开▼
