CN2050984U

CN2050984U - Health glasses for plateau area use

Info

Publication number: CN2050984U
Application number: CN 89202473
Authority: CN
Inventors: 李佩赞; 王永禄; 周家森; 钱霖
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-03-10
Filing date: 1989-03-10
Publication date: 1990-01-10

Abstract

The utility model relates to a pair of health glasses for plateau area use. The health glasses are used for field workers, tourists, climbers, etc. To wear on plateau areas. The health glasses adopt optical glass whose wave length is within 450 to 700 mm. An aluminium film and a silicon monoxide protecting layer are coated on the optical glass. The film layer which is coated with the film is split into three stepped zones. The health glasses can kill off ultraviolet rays and infrared rays, and the transmissivity of the ultraviolet rays and the infrared rays is below 10% on average. The transmission spectrum properties are fundamentally engaged with the visual sensitive curves of human eyes when the health glasses in a visible region, which enables humans to feel gentle and not to easy to fatigue when wearing the health glasses to observe.

Description

Health glasses for plateau area use

The utility model belongs to the personal protection glasses

Existing glasses are many, and sunglasses, light-sensitive glasses etc. are arranged.Sunglasses can only be eliminated some dazzling high lights, but it is little to eliminate ultraviolet ability, does not more have the infrared function of excluding.The photosensitive colour-changing mirror can darken when rayed, to reduce light transmission capacity, presses the strong and weak variable density of illumination and filters, and can eliminate part ultraviolet ray and dazzling reflected light, and their transmittance after measured, and is all many through ultraviolet ray and infrared ray.For example: it sees through ultraviolet ray all more than 30% several light-sensitive glasses of domestic existing, sunglasses, and it is then more to see through infrared ray, coloured sunglasses in Taiwan, and it sees through ultraviolet ray on average more than 30%, sees through infrared ray up to 70%.And external two kinds of motion sunglassess of CARRERA-SPCRT though can eliminate ultraviolet ray fully, then can not finely be eliminated causing the infrared ray of cataract sufferer after the irradiation, and transmittance even surpasses 15% between 10～15%.In a word, above-mentioned existing safety goggles can not be as antiultraviolet and anti-infrared plateau glasses, this is for the vast field worker in highlands, the traveller, mountaineer etc., it is a urgent problem, because highlands height above sea level, rarefaction of air, the dust rareness, air purification degree height, sunshine is strong, the ultraviolet ray harmful in the daylight to eyes (290～400nm) and infrared ray (＞760nm), can almost all be absorbed by cornea by crystalline lens, promoting denaturation of lens proteins to cause solidifies, the plateau is long winter in addition, glacier accumulated snow is reflective more to have increased ultraviolet ray and the ultrared width of cloth is penetrated intensity, so the eye illnesses such as cataract that the ultraviolet keratoconjunctivitis sicca in plateau and infrared ray cause appear in highlands easily.

The purpose of this utility model provides a kind of glasses with elimination ultraviolet ray fully and the overwhelming majority (＞90%) elimination infrared function that use the highlands that is suitable for, and transmittance spectrum performance and the human eye vision sensitivity curve of glasses in 450～700nm visible wavelength range is identical substantially, make when observing and feel very soft, indefatigability.

For achieving the above object, the utility model adopts following structure:

Glasses are made up of eyeglass, mirror holder, mirror holder supports and is divided in the mirror holder: front support and back support, the front and rear part is removably connect (being threaded or plug-in type as employing), eyeglass is made by optical band pass glass, the former bandpass filter that can be used as of this glass, be used on the optical instrument, the utility model has selected for use the band of wavelength between 450～700nm to lead to optical glass, solves glasses and eliminates ultraviolet ray and overwhelming majority elimination infrared ray problem fully.The thickness of eyeglass is between 1.2～1.4mm.

In addition, on optical glass, scribble the aluminium film, scribble anti-oxidation silicon monoxide coating on the aluminium film, film and be divided into three ladder type zones, two regional rete transmittances are about 60% up and down, the transmittance of zone line is about 80%, makes when looking up sky or overlooking ground, and the light that penetrates eyes further weakens.

Being used for the utility model as the prescription of glass for lenses is:

Green len: glass ingredient SiO ₂Na ₂O K ₂O B ₂O ₃PbO ZnO

Weight % 60 992 15 5

Addition of C r ₂O ₃CuO CeO ₂

Weight % 1 0.5 3

Dark brown eyeglass: glass ingredient B ₂O ₃Al ₂O ₃PbO Na ₂O

Weight % 64 16 16 4

Adjuvant NiO CeO ₂TiO ₂CuO

Weight % 4122

Eyeglass processing technology step is: select materials, cut, corase grind, fine grinding (carrying out routinely), curved recessed (200#), polishing (3#), plated film, for making plated film even, with the method for vacuum ionic bombardment, glass surface is handled earlier, and playing the effect of preheating, its vacuum tightness is: 10 ^-4Torr adopts the vacuum technology plated film, and the ground floor aluminising is coated with the silicon monoxide antioxidation coating again on the aluminium film, film to be divided into three zones, upper, middle and lower, and from top to bottom, thickness has gradient, behind the plated film through post bake again through scribing, edging etc.

These glasses advantage is: for optical band pass glass has been opened up new purposes, the antiultraviolet, the anti-infrared plateau glasses that adopt this eyeglass to make, can eliminate ultraviolet ray fully, the infrared ray average transmittance is controlled at below 10%, and glasses are when 450～700nm wavelength, its light penetration is lower, and its transmittance spectrum characteristic and human eye vision sensitivity curve are identical substantially.

The utility model is described in further detail below in conjunction with accompanying drawing:

The front view of Fig. 1, plateau glasses

The side view of Fig. 2, plateau glasses

The spectrum transmitting rate curve of Fig. 3, dark brown plateau glasses eyeglass

The spectrum transmitting rate curve of Fig. 4, green plateau glasses eyeglass

The spectrum transmitting rate curve of Fig. 5, Taiwan tinted glasses

The spectrum transmitting rate curve of Fig. 6, import CARRERA SPORT motion sunglasses

Fig. 7, import CARRER SPORT motion sunglasses spectrum transmitting rate curve

Fig. 8, human eye vision sensitivity curve

(1), picture frame among Fig. 1, (2), eyeglass

(1), picture frame among Fig. 2, (3) be front support, (4) go up aperture for supporting, (5) be convex cylinder on the back support, (6) be back support, (7), for connecting the elasticity thing (as elastic cord) of two supports on the mirror holder, front support and back support are for removably connecting.

Wherein, lens thickness is about 1.2mm, is that the logical optical glass of band between the 450-700nm is made with the wavelength, and its surface scribbles aluminium film and silicon monoxide protective seam, and both sides are thick up and down for coating, intermediate thin, and in gradient, area is about that 60mm is wide, 20mm is high.The glasses made from said structure as can be seen from Fig. 3 Fig. 4, the performance of represented Taiwan tinted glasses is compared among its antiultraviolet and infrared ray performance and Fig. 5, the product that is better than Taiwan greatly, compare (seeing Fig. 6, Fig. 7) with two kinds of products of CARRERA SPORT of import, its elimination infrared function and transmittance spectrum characteristic are also all relatively good, and be identical substantially with Fig. 8.Among Fig. 8

(people) is the vision relative sensitivity, and dotted line is than the half-light photograph, is practiced as than light and shines.

Claims

1, a kind of plateau glasses, it is made up of eyeglass, mirror holder, it is characterized in that the optical glass that eyeglass is 450～700mm by the logical wavelength of the thick band of 1.2～1.4mm makes, in the mirror holder, mirror holder supports and is divided into front support and back support, and the front and rear part removably connects.

2, by the described glasses of claim 1, it is characterized in that also scribbling on the said eyeglass aluminium film and silicon monoxide diaphragm, to changing in gradient, upper and lower limit is thick, intermediate thin at the upper and lower of eyeglass for thicknesses of layers.

3, by claim 1 or 2 described glasses, in it is characterized in that described mirror holder supports, front support with being connected of back support is: forwardly the rear portion of Zhi Chenging is a hollow type, its sidewall is distributed with several apertures along its length, the back support top has several convex cylinders, after back support is inserted front support, and convex cylinder and aperture driving fit, when the aperture with different parts joins, can change the length that mirror holder supports.