Manufacturing method of plastic rod-shaped lens and manufacturing method of plastic rod-shaped lens array
A technology of rod lens and manufacturing method, which is applied in the fields of lenses, optics, instruments, etc., can solve the problems of not being able to impart heat resistance characteristics and rod lens deformation, and achieve the effect of excellent heat resistance and no reduction in optical characteristics
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0067] Using the above-mentioned monomer interdiffusion method, the radius r is 0.30 mm, and the refractive index of the central axis is 1.506. The refractive index distribution in the range of 0.22r to 0.78r from the central axis can be approximately expressed by the above formula (1). 740nm The refractive index distribution constant g of wavelength light is 0.87mm -1 , Rod lens with heat distortion temperature of 78°C. In this rod lens, a light-absorbing layer containing a dye substantially uniformly was formed with a thickness of about 78 μm in a range from 0.73r to 0.99r at the center.
[0068] The obtained rod lens was heat-treated for 24 hours in a dryer set at 70° C. (relative humidity equal to or less than 30%). The thermal deformation temperature of the rod lens after the treatment was 89°C.
[0069] Using a plurality of such rod lenses, in the same manner as above, using the first substrate and the second substrate made of phenolic resin with a thickness of 1.0 mm,...
Embodiment 2
[0074] Heated and kneaded 47 parts by mass of polymethyl methacrylate ([η]=0.40 in MEK at 70°C, measured at 25°C, as polymethyl methacrylate in the following examples and comparative examples, using and The same), 30 parts by mass of the tricyclic [5.2.1.0 represented by the following formula 2，6 ]decyl methacrylate,
[0075]
[0076] 23 parts by mass of methyl methacrylate, 0.25 parts by mass of 1-hydroxycyclohexylbenzophenone, and 0.1 parts by mass of hydroquinone were used as the stock solution for forming the first layer. 50 parts by weight polymethyl methacrylate, 10 parts by weight tricyclic [5.2.1.0 2，6 ] Decyl methacrylate, 40 parts by mass of methyl methacrylate, 0.25 parts by mass of 1-hydroxycyclohexylbenzophenone, and 0.1 parts by mass of hydroquinone were used as a stock solution for forming the second layer. Heat and knead 50 parts by mass of polymethyl methacrylate, 10 parts by mass of 2,2,3,3,4,4,5,5-octafluoropentyl methacrylate, 40 parts by mass of methy...
Embodiment 3
[0087] The rod lenses of Example 2 were treated for 24 hours in a constant temperature and humidity machine set at 60° C. and a relative humidity of 90%. The thermal deformation temperature of the rod lens after the treatment was 84°C.
[0088] Using these rod lenses, it produced similarly to Example 2, and produced one rod lens row (lens length: 4.4 mm). The conjugate length at 525 nm of the produced rod lens array was 10.0 mm, and the average value of MTF of 12 Lp / mm was 75%. The rod lens array was heat-treated for 1000 hours in a constant temperature and humidity machine set at 60° C. and a relative humidity of 90%. The conjugate length of the treated lens array in 525nm wavelength light was 10.0 mm, the average value of MTF of 12 Lp / mm was 75%, the optical properties did not change before and after heat treatment, and the heat resistance properties were excellent.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Radius | aaaaa | aaaaa |
| Heat distortion temperature | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More